diff options
| author | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-16 18:49:26 +0900 |
|---|---|---|
| committer | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-30 00:39:06 +0900 |
| commit | fcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch) | |
| tree | 64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/time.c | |
Fresh start
Diffstat (limited to 'jni/ruby/time.c')
| -rw-r--r-- | jni/ruby/time.c | 5050 |
1 files changed, 5050 insertions, 0 deletions
diff --git a/jni/ruby/time.c b/jni/ruby/time.c new file mode 100644 index 0000000..22a79dc --- /dev/null +++ b/jni/ruby/time.c @@ -0,0 +1,5050 @@ +/********************************************************************** + + time.c - + + $Author: naruse $ + created at: Tue Dec 28 14:31:59 JST 1993 + + Copyright (C) 1993-2007 Yukihiro Matsumoto + +**********************************************************************/ + +#include "internal.h" +#include <sys/types.h> +#include <time.h> +#include <errno.h> + +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif + +#include <float.h> +#include <math.h> + +#ifdef HAVE_STRINGS_H +#include <strings.h> +#endif + +#if defined(HAVE_SYS_TIME_H) +#include <sys/time.h> +#endif + +#include "timev.h" + +static ID id_divmod, id_mul, id_submicro, id_nano_num, id_nano_den, id_offset, id_zone; +static ID id_eq, id_ne, id_quo, id_div, id_cmp; + +#define NDIV(x,y) (-(-((x)+1)/(y))-1) +#define NMOD(x,y) ((y)-(-((x)+1)%(y))-1) +#define DIV(n,d) ((n)<0 ? NDIV((n),(d)) : (n)/(d)) +#define MOD(n,d) ((n)<0 ? NMOD((n),(d)) : (n)%(d)) +#define VTM_WDAY_INITVAL (7) +#define VTM_ISDST_INITVAL (3) +#define TO_GMT_INITVAL (3) + +static int +eq(VALUE x, VALUE y) +{ + if (FIXNUM_P(x) && FIXNUM_P(y)) { + return x == y; + } + return RTEST(rb_funcall(x, id_eq, 1, y)); +} + +static int +cmp(VALUE x, VALUE y) +{ + if (FIXNUM_P(x) && FIXNUM_P(y)) { + if ((long)x < (long)y) + return -1; + if ((long)x > (long)y) + return 1; + return 0; + } + return rb_cmpint(rb_funcall(x, id_cmp, 1, y), x, y); +} + +#define ne(x,y) (!eq((x),(y))) +#define lt(x,y) (cmp((x),(y)) < 0) +#define gt(x,y) (cmp((x),(y)) > 0) +#define le(x,y) (cmp((x),(y)) <= 0) +#define ge(x,y) (cmp((x),(y)) >= 0) + +static VALUE +add(VALUE x, VALUE y) +{ + if (FIXNUM_P(x) && FIXNUM_P(y)) { + long l = FIX2LONG(x) + FIX2LONG(y); + if (FIXABLE(l)) return LONG2FIX(l); + return LONG2NUM(l); + } + if (RB_TYPE_P(x, T_BIGNUM)) return rb_big_plus(x, y); + return rb_funcall(x, '+', 1, y); +} + +static VALUE +sub(VALUE x, VALUE y) +{ + if (FIXNUM_P(x) && FIXNUM_P(y)) { + long l = FIX2LONG(x) - FIX2LONG(y); + if (FIXABLE(l)) return LONG2FIX(l); + return LONG2NUM(l); + } + if (RB_TYPE_P(x, T_BIGNUM)) return rb_big_minus(x, y); + return rb_funcall(x, '-', 1, y); +} + +#if !(HAVE_LONG_LONG && SIZEOF_LONG * 2 <= SIZEOF_LONG_LONG) +static int +long_mul(long x, long y, long *z) +{ + unsigned long a, b, c; + int s; + if (x == 0 || y == 0) { + *z = 0; + return 1; + } + if (x < 0) { + s = -1; + a = (unsigned long)-x; + } + else { + s = 1; + a = (unsigned long)x; + } + if (y < 0) { + s = -s; + b = (unsigned long)-y; + } + else { + b = (unsigned long)y; + } + if (a <= ULONG_MAX / b) { + c = a * b; + if (s < 0) { + if (c <= (unsigned long)LONG_MAX + 1) { + *z = -(long)c; + return 1; + } + } + else { + if (c <= (unsigned long)LONG_MAX) { + *z = (long)c; + return 1; + } + } + } + return 0; +} +#endif + +static VALUE +mul(VALUE x, VALUE y) +{ + if (FIXNUM_P(x) && FIXNUM_P(y)) { +#if HAVE_LONG_LONG && SIZEOF_LONG * 2 <= SIZEOF_LONG_LONG + LONG_LONG ll = (LONG_LONG)FIX2LONG(x) * FIX2LONG(y); + if (FIXABLE(ll)) + return LONG2FIX(ll); + return LL2NUM(ll); +#else + long z; + if (long_mul(FIX2LONG(x), FIX2LONG(y), &z)) + return LONG2NUM(z); +#endif + } + if (RB_TYPE_P(x, T_BIGNUM)) + return rb_big_mul(x, y); + return rb_funcall(x, '*', 1, y); +} + +#define div(x,y) (rb_funcall((x), id_div, 1, (y))) + +static VALUE +mod(VALUE x, VALUE y) +{ + switch (TYPE(x)) { + case T_BIGNUM: return rb_big_modulo(x, y); + default: return rb_funcall(x, '%', 1, y); + } +} + +#define neg(x) (sub(INT2FIX(0), (x))) + +static VALUE +quo(VALUE x, VALUE y) +{ + VALUE ret; + if (FIXNUM_P(x) && FIXNUM_P(y)) { + long a, b, c; + a = FIX2LONG(x); + b = FIX2LONG(y); + if (b == 0) rb_num_zerodiv(); + c = a / b; + if (c * b == a) { + return LONG2NUM(c); + } + } + ret = rb_funcall(x, id_quo, 1, y); + if (RB_TYPE_P(ret, T_RATIONAL) && + RRATIONAL(ret)->den == INT2FIX(1)) { + ret = RRATIONAL(ret)->num; + } + return ret; +} + +#define mulquo(x,y,z) (((y) == (z)) ? (x) : quo(mul((x),(y)),(z))) + +static void +divmodv(VALUE n, VALUE d, VALUE *q, VALUE *r) +{ + VALUE tmp, ary; + tmp = rb_funcall(n, id_divmod, 1, d); + ary = rb_check_array_type(tmp); + if (NIL_P(ary)) { + rb_raise(rb_eTypeError, "unexpected divmod result: into %s", + rb_obj_classname(tmp)); + } + *q = rb_ary_entry(ary, 0); + *r = rb_ary_entry(ary, 1); +} + +#if SIZEOF_LONG == 8 +# define INT64toNUM(x) LONG2NUM(x) +#elif defined(HAVE_LONG_LONG) && SIZEOF_LONG_LONG == 8 +# define INT64toNUM(x) LL2NUM(x) +#endif + +#if defined(HAVE_UINT64_T) && SIZEOF_LONG*2 <= SIZEOF_UINT64_T + typedef uint64_t uwideint_t; + typedef int64_t wideint_t; + typedef uint64_t WIDEVALUE; + typedef int64_t SIGNED_WIDEVALUE; +# define WIDEVALUE_IS_WIDER 1 +# define UWIDEINT_MAX UINT64_MAX +# define WIDEINT_MAX INT64_MAX +# define WIDEINT_MIN INT64_MIN +# define FIXWINT_P(tv) ((tv) & 1) +# define FIXWVtoINT64(tv) RSHIFT((SIGNED_WIDEVALUE)(tv), 1) +# define INT64toFIXWV(wi) ((WIDEVALUE)((SIGNED_WIDEVALUE)(wi) << 1 | FIXNUM_FLAG)) +# define FIXWV_MAX (((int64_t)1 << 62) - 1) +# define FIXWV_MIN (-((int64_t)1 << 62)) +# define FIXWVABLE(wi) (POSFIXWVABLE(wi) && NEGFIXWVABLE(wi)) +# define WINT2FIXWV(i) WIDEVAL_WRAP(INT64toFIXWV(i)) +# define FIXWV2WINT(w) FIXWVtoINT64(WIDEVAL_GET(w)) +#else + typedef unsigned long uwideint_t; + typedef long wideint_t; + typedef VALUE WIDEVALUE; + typedef SIGNED_VALUE SIGNED_WIDEVALUE; +# define WIDEVALUE_IS_WIDER 0 +# define UWIDEINT_MAX ULONG_MAX +# define WIDEINT_MAX LONG_MAX +# define WIDEINT_MIN LONG_MIN +# define FIXWINT_P(v) FIXNUM_P(v) +# define FIXWV_MAX FIXNUM_MAX +# define FIXWV_MIN FIXNUM_MIN +# define FIXWVABLE(i) FIXABLE(i) +# define WINT2FIXWV(i) WIDEVAL_WRAP(LONG2FIX(i)) +# define FIXWV2WINT(w) FIX2LONG(WIDEVAL_GET(w)) +#endif + +#define POSFIXWVABLE(wi) ((wi) < FIXWV_MAX+1) +#define NEGFIXWVABLE(wi) ((wi) >= FIXWV_MIN) +#define FIXWV_P(w) FIXWINT_P(WIDEVAL_GET(w)) + +/* #define STRUCT_WIDEVAL */ +#ifdef STRUCT_WIDEVAL + /* for type checking */ + typedef struct { + WIDEVALUE value; + } wideval_t; + static inline wideval_t WIDEVAL_WRAP(WIDEVALUE v) { wideval_t w = { v }; return w; } +# define WIDEVAL_GET(w) ((w).value) +#else + typedef WIDEVALUE wideval_t; +# define WIDEVAL_WRAP(v) (v) +# define WIDEVAL_GET(w) (w) +#endif + +#if WIDEVALUE_IS_WIDER + static inline wideval_t + wint2wv(wideint_t wi) + { + if (FIXWVABLE(wi)) + return WINT2FIXWV(wi); + else + return WIDEVAL_WRAP(INT64toNUM(wi)); + } +# define WINT2WV(wi) wint2wv(wi) +#else +# define WINT2WV(wi) WIDEVAL_WRAP(LONG2NUM(wi)) +#endif + +static inline VALUE +w2v(wideval_t w) +{ +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(w)) + return INT64toNUM(FIXWV2WINT(w)); + return (VALUE)WIDEVAL_GET(w); +#else + return WIDEVAL_GET(w); +#endif +} + +#if WIDEVALUE_IS_WIDER +static wideval_t +v2w_bignum(VALUE v) +{ + int sign; + uwideint_t u; + sign = rb_integer_pack(v, &u, 1, sizeof(u), 0, + INTEGER_PACK_NATIVE_BYTE_ORDER); + if (sign == 0) + return WINT2FIXWV(0); + else if (sign == -1) { + if (u <= -FIXWV_MIN) + return WINT2FIXWV(-(wideint_t)u); + } + else if (sign == +1) { + if (u <= FIXWV_MAX) + return WINT2FIXWV((wideint_t)u); + } + return WIDEVAL_WRAP(v); +} +#endif + +static inline wideval_t +v2w(VALUE v) +{ + if (RB_TYPE_P(v, T_RATIONAL)) { + if (RRATIONAL(v)->den != LONG2FIX(1)) + return v; + v = RRATIONAL(v)->num; + } +#if WIDEVALUE_IS_WIDER + if (FIXNUM_P(v)) { + return WIDEVAL_WRAP((WIDEVALUE)(SIGNED_WIDEVALUE)(long)v); + } + else if (RB_TYPE_P(v, T_BIGNUM) && + rb_absint_size(v, NULL) <= sizeof(WIDEVALUE)) { + return v2w_bignum(v); + } +#endif + return WIDEVAL_WRAP(v); +} + +static int +weq(wideval_t wx, wideval_t wy) +{ +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(wx) && FIXWV_P(wy)) { + return WIDEVAL_GET(wx) == WIDEVAL_GET(wy); + } + return RTEST(rb_funcall(w2v(wx), id_eq, 1, w2v(wy))); +#else + return eq(WIDEVAL_GET(wx), WIDEVAL_GET(wy)); +#endif +} + +static int +wcmp(wideval_t wx, wideval_t wy) +{ + VALUE x, y; +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(wx) && FIXWV_P(wy)) { + wideint_t a, b; + a = FIXWV2WINT(wx); + b = FIXWV2WINT(wy); + if (a < b) + return -1; + if (a > b) + return 1; + return 0; + } +#endif + x = w2v(wx); + y = w2v(wy); + return rb_cmpint(rb_funcall(x, id_cmp, 1, y), x, y); +} + +#define wne(x,y) (!weq((x),(y))) +#define wlt(x,y) (wcmp((x),(y)) < 0) +#define wgt(x,y) (wcmp((x),(y)) > 0) +#define wle(x,y) (wcmp((x),(y)) <= 0) +#define wge(x,y) (wcmp((x),(y)) >= 0) + +static wideval_t +wadd(wideval_t wx, wideval_t wy) +{ + VALUE x; +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(wx) && FIXWV_P(wy)) { + wideint_t r = FIXWV2WINT(wx) + FIXWV2WINT(wy); + return WINT2WV(r); + } + else +#endif + x = w2v(wx); + if (RB_TYPE_P(x, T_BIGNUM)) return v2w(rb_big_plus(x, w2v(wy))); + return v2w(rb_funcall(x, '+', 1, w2v(wy))); +} + +static wideval_t +wsub(wideval_t wx, wideval_t wy) +{ + VALUE x; +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(wx) && FIXWV_P(wy)) { + wideint_t r = FIXWV2WINT(wx) - FIXWV2WINT(wy); + return WINT2WV(r); + } + else +#endif + x = w2v(wx); + if (RB_TYPE_P(x, T_BIGNUM)) return v2w(rb_big_minus(x, w2v(wy))); + return v2w(rb_funcall(x, '-', 1, w2v(wy))); +} + +static int +wi_mul(wideint_t x, wideint_t y, wideint_t *z) +{ + uwideint_t a, b, c; + int s; + if (x == 0 || y == 0) { + *z = 0; + return 1; + } + if (x < 0) { + s = -1; + a = (uwideint_t)-x; + } + else { + s = 1; + a = (uwideint_t)x; + } + if (y < 0) { + s = -s; + b = (uwideint_t)-y; + } + else { + b = (uwideint_t)y; + } + if (a <= UWIDEINT_MAX / b) { + c = a * b; + if (s < 0) { + if (c <= (uwideint_t)WIDEINT_MAX + 1) { + *z = -(wideint_t)c; + return 1; + } + } + else { + if (c <= (uwideint_t)WIDEINT_MAX) { + *z = (wideint_t)c; + return 1; + } + } + } + return 0; +} + +static wideval_t +wmul(wideval_t wx, wideval_t wy) +{ + VALUE x, z; +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(wx) && FIXWV_P(wy)) { + wideint_t z; + if (wi_mul(FIXWV2WINT(wx), FIXWV2WINT(wy), &z)) + return WINT2WV(z); + } +#endif + x = w2v(wx); + if (RB_TYPE_P(x, T_BIGNUM)) return v2w(rb_big_mul(x, w2v(wy))); + z = rb_funcall(x, '*', 1, w2v(wy)); + if (RB_TYPE_P(z, T_RATIONAL) && RRATIONAL(z)->den == INT2FIX(1)) { + z = RRATIONAL(z)->num; + } + return v2w(z); +} + +static wideval_t +wquo(wideval_t wx, wideval_t wy) +{ + VALUE x, y, ret; +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(wx) && FIXWV_P(wy)) { + wideint_t a, b, c; + a = FIXWV2WINT(wx); + b = FIXWV2WINT(wy); + if (b == 0) rb_num_zerodiv(); + c = a / b; + if (c * b == a) { + return WINT2WV(c); + } + } +#endif + x = w2v(wx); + y = w2v(wy); + ret = rb_funcall(x, id_quo, 1, y); + if (RB_TYPE_P(ret, T_RATIONAL) && + RRATIONAL(ret)->den == INT2FIX(1)) { + ret = RRATIONAL(ret)->num; + } + return v2w(ret); +} + +#define wmulquo(x,y,z) ((WIDEVAL_GET(y) == WIDEVAL_GET(z)) ? (x) : wquo(wmul((x),(y)),(z))) +#define wmulquoll(x,y,z) (((y) == (z)) ? (x) : wquo(wmul((x),WINT2WV(y)),WINT2WV(z))) + +static void +wdivmod(wideval_t wn, wideval_t wd, wideval_t *wq, wideval_t *wr) +{ + VALUE tmp, ary; +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(wn) && FIXWV_P(wd)) { + wideint_t n, d, q, r; + d = FIXWV2WINT(wd); + if (d == 0) rb_num_zerodiv(); + if (d == 1) { + *wq = wn; + *wr = WINT2FIXWV(0); + return; + } + if (d == -1) { + wideint_t xneg = -FIXWV2WINT(wn); + *wq = WINT2WV(xneg); + *wr = WINT2FIXWV(0); + return; + } + n = FIXWV2WINT(wn); + if (n == 0) { + *wq = WINT2FIXWV(0); + *wr = WINT2FIXWV(0); + return; + } + if (d < 0) { + if (n < 0) { + q = ((-n) / (-d)); + r = ((-n) % (-d)); + if (r != 0) { + q -= 1; + r += d; + } + } + else { /* 0 < n */ + q = -(n / (-d)); + r = -(n % (-d)); + } + } + else { /* 0 < d */ + if (n < 0) { + q = -((-n) / d); + r = -((-n) % d); + if (r != 0) { + q -= 1; + r += d; + } + } + else { /* 0 < n */ + q = n / d; + r = n % d; + } + } + *wq = WINT2FIXWV(q); + *wr = WINT2FIXWV(r); + return; + } +#endif + tmp = rb_funcall(w2v(wn), id_divmod, 1, w2v(wd)); + ary = rb_check_array_type(tmp); + if (NIL_P(ary)) { + rb_raise(rb_eTypeError, "unexpected divmod result: into %s", + rb_obj_classname(tmp)); + } + *wq = v2w(rb_ary_entry(ary, 0)); + *wr = v2w(rb_ary_entry(ary, 1)); +} + +static void +wmuldivmod(wideval_t wx, wideval_t wy, wideval_t wz, wideval_t *wq, wideval_t *wr) +{ + if (WIDEVAL_GET(wy) == WIDEVAL_GET(wz)) { + *wq = wx; + *wr = WINT2FIXWV(0); + return; + } + wdivmod(wmul(wx,wy), wz, wq, wr); +} + +static wideval_t +wdiv(wideval_t wx, wideval_t wy) +{ + wideval_t q, r; + wdivmod(wx, wy, &q, &r); + return q; +} + +static wideval_t +wmod(wideval_t wx, wideval_t wy) +{ + wideval_t q, r; + wdivmod(wx, wy, &q, &r); + return r; +} + +static VALUE +num_exact(VALUE v) +{ + VALUE tmp; + int t; + + t = TYPE(v); + switch (t) { + case T_FIXNUM: + case T_BIGNUM: + return v; + + case T_RATIONAL: + break; + + case T_STRING: + case T_NIL: + goto typeerror; + + default: + if ((tmp = rb_check_funcall(v, rb_intern("to_r"), 0, NULL)) != Qundef) { + /* test to_int method availability to reject non-Numeric + * objects such as String, Time, etc which have to_r method. */ + if (!rb_respond_to(v, rb_intern("to_int"))) goto typeerror; + v = tmp; + break; + } + if (!NIL_P(tmp = rb_check_to_integer(v, "to_int"))) { + v = tmp; + break; + } + goto typeerror; + } + + t = TYPE(v); + switch (t) { + case T_FIXNUM: + case T_BIGNUM: + return v; + + case T_RATIONAL: + if (RRATIONAL(v)->den == INT2FIX(1)) + v = RRATIONAL(v)->num; + break; + + default: + typeerror: + rb_raise(rb_eTypeError, "can't convert %s into an exact number", + NIL_P(v) ? "nil" : rb_obj_classname(v)); + } + return v; +} + +/* time_t */ + +static wideval_t +rb_time_magnify(wideval_t w) +{ + if (FIXWV_P(w)) { + wideint_t z; + if (wi_mul(FIXWV2WINT(w), TIME_SCALE, &z)) + return WINT2WV(z); + } + return wmul(w, WINT2FIXWV(TIME_SCALE)); +} + +static wideval_t +rb_time_unmagnify(wideval_t w) +{ +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(w)) { + wideint_t a, b, c; + a = FIXWV2WINT(w); + b = TIME_SCALE; + c = a / b; + if (c * b == a) { + return WINT2FIXWV(c); + } + } +#endif + return wquo(w, WINT2FIXWV(TIME_SCALE)); +} + +static VALUE +rb_time_unmagnify_to_float(wideval_t w) +{ + VALUE v; +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(w)) { + wideint_t a, b, c; + a = FIXWV2WINT(w); + b = TIME_SCALE; + c = a / b; + if (c * b == a) { + return DBL2NUM((double)c); + } + v = DBL2NUM((double)FIXWV2WINT(w)); + return quo(v, DBL2NUM(TIME_SCALE)); + } +#endif + v = w2v(w); + if (RB_TYPE_P(v, T_RATIONAL)) + return rb_Float(quo(v, INT2FIX(TIME_SCALE))); + else + return quo(v, DBL2NUM(TIME_SCALE)); +} + +static void +split_second(wideval_t timew, wideval_t *timew_p, VALUE *subsecx_p) +{ + wideval_t q, r; + wdivmod(timew, WINT2FIXWV(TIME_SCALE), &q, &r); + *timew_p = q; + *subsecx_p = w2v(r); +} + +static wideval_t +timet2wv(time_t t) +{ +#if WIDEVALUE_IS_WIDER + if (TIMET_MIN == 0) { + uwideint_t wi = (uwideint_t)t; + if (wi <= FIXWV_MAX) { + return WINT2FIXWV(wi); + } + } + else { + wideint_t wi = (wideint_t)t; + if (FIXWV_MIN <= wi && wi <= FIXWV_MAX) { + return WINT2FIXWV(wi); + } + } +#endif + return v2w(TIMET2NUM(t)); +} +#define TIMET2WV(t) timet2wv(t) + +static time_t +wv2timet(wideval_t w) +{ +#if WIDEVALUE_IS_WIDER + if (FIXWV_P(w)) { + wideint_t wi = FIXWV2WINT(w); + if (TIMET_MIN == 0) { + if (wi < 0) + rb_raise(rb_eRangeError, "negative value to convert into `time_t'"); + if (TIMET_MAX < (uwideint_t)wi) + rb_raise(rb_eRangeError, "too big to convert into `time_t'"); + } + else { + if (wi < TIMET_MIN || TIMET_MAX < wi) + rb_raise(rb_eRangeError, "too big to convert into `time_t'"); + } + return (time_t)wi; + } +#endif + return NUM2TIMET(w2v(w)); +} +#define WV2TIMET(t) wv2timet(t) + +VALUE rb_cTime; +static VALUE time_utc_offset _((VALUE)); + +static int obj2int(VALUE obj); +static uint32_t obj2ubits(VALUE obj, size_t bits); +static VALUE obj2vint(VALUE obj); +static uint32_t month_arg(VALUE arg); +static VALUE validate_utc_offset(VALUE utc_offset); +static VALUE validate_zone_name(VALUE zone_name); +static void validate_vtm(struct vtm *vtm); +static uint32_t obj2subsecx(VALUE obj, VALUE *subsecx); + +static VALUE time_gmtime(VALUE); +static VALUE time_localtime(VALUE); +static VALUE time_fixoff(VALUE); + +static time_t timegm_noleapsecond(struct tm *tm); +static int tmcmp(struct tm *a, struct tm *b); +static int vtmcmp(struct vtm *a, struct vtm *b); +static const char *find_time_t(struct tm *tptr, int utc_p, time_t *tp); + +static struct vtm *localtimew(wideval_t timew, struct vtm *result); + +static int leap_year_p(long y); +#define leap_year_v_p(y) leap_year_p(NUM2LONG(mod((y), INT2FIX(400)))) + +#ifdef HAVE_GMTIME_R +#define rb_gmtime_r(t, tm) gmtime_r((t), (tm)) +#define rb_localtime_r(t, tm) localtime_r((t), (tm)) +#else +static inline struct tm * +rb_gmtime_r(const time_t *tp, struct tm *result) +{ + struct tm *t = gmtime(tp); + if (t) *result = *t; + return t; +} + +static inline struct tm * +rb_localtime_r(const time_t *tp, struct tm *result) +{ + struct tm *t = localtime(tp); + if (t) *result = *t; + return t; +} +#endif + +static struct tm * +rb_localtime_r2(const time_t *t, struct tm *result) +{ +#if defined __APPLE__ && defined __LP64__ + if (*t != (time_t)(int)*t) return NULL; +#endif + result = rb_localtime_r(t, result); +#if defined(HAVE_MKTIME) && defined(LOCALTIME_OVERFLOW_PROBLEM) + if (result) { + long gmtoff1 = 0; + long gmtoff2 = 0; + struct tm tmp = *result; + time_t t2; +# if defined(HAVE_STRUCT_TM_TM_GMTOFF) + gmtoff1 = result->tm_gmtoff; +# endif + t2 = mktime(&tmp); +# if defined(HAVE_STRUCT_TM_TM_GMTOFF) + gmtoff2 = tmp.tm_gmtoff; +# endif + if (*t + gmtoff1 != t2 + gmtoff2) + result = NULL; + } +#endif + return result; +} +#define LOCALTIME(tm, result) (tzset(),rb_localtime_r2((tm), &(result))) + +#if !defined(HAVE_STRUCT_TM_TM_GMTOFF) +static struct tm * +rb_gmtime_r2(const time_t *t, struct tm *result) +{ + result = rb_gmtime_r(t, result); +#if defined(HAVE_TIMEGM) && defined(LOCALTIME_OVERFLOW_PROBLEM) + if (result) { + struct tm tmp = *result; + time_t t2 = timegm(&tmp); + if (*t != t2) + result = NULL; + } +#endif + return result; +} +# define GMTIME(tm, result) rb_gmtime_r2((tm), &(result)) +#endif + +static const int common_year_yday_offset[] = { + -1, + -1 + 31, + -1 + 31 + 28, + -1 + 31 + 28 + 31, + -1 + 31 + 28 + 31 + 30, + -1 + 31 + 28 + 31 + 30 + 31, + -1 + 31 + 28 + 31 + 30 + 31 + 30, + -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31, + -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31, + -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30, + -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31, + -1 + 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + /* 1 2 3 4 5 6 7 8 9 10 11 */ +}; +static const int leap_year_yday_offset[] = { + -1, + -1 + 31, + -1 + 31 + 29, + -1 + 31 + 29 + 31, + -1 + 31 + 29 + 31 + 30, + -1 + 31 + 29 + 31 + 30 + 31, + -1 + 31 + 29 + 31 + 30 + 31 + 30, + -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31, + -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31, + -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30, + -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31, + -1 + 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + /* 1 2 3 4 5 6 7 8 9 10 11 */ +}; + +static const int common_year_days_in_month[] = { + 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 +}; +static const int leap_year_days_in_month[] = { + 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 +}; + +static int +calc_tm_yday(long tm_year, int tm_mon, int tm_mday) +{ + int tm_year_mod400 = (int)MOD(tm_year, 400); + int tm_yday = tm_mday; + + if (leap_year_p(tm_year_mod400 + 1900)) + tm_yday += leap_year_yday_offset[tm_mon]; + else + tm_yday += common_year_yday_offset[tm_mon]; + + return tm_yday; +} + +static wideval_t +timegmw_noleapsecond(struct vtm *vtm) +{ + VALUE year1900; + VALUE q400, r400; + int year_mod400; + int yday; + long days_in400; + VALUE vdays, ret; + wideval_t wret; + + year1900 = sub(vtm->year, INT2FIX(1900)); + + divmodv(year1900, INT2FIX(400), &q400, &r400); + year_mod400 = NUM2INT(r400); + + yday = calc_tm_yday(year_mod400, vtm->mon-1, vtm->mday); + + /* + * `Seconds Since the Epoch' in SUSv3: + * tm_sec + tm_min*60 + tm_hour*3600 + tm_yday*86400 + + * (tm_year-70)*31536000 + ((tm_year-69)/4)*86400 - + * ((tm_year-1)/100)*86400 + ((tm_year+299)/400)*86400 + */ + ret = LONG2NUM(vtm->sec + + vtm->min*60 + + vtm->hour*3600); + days_in400 = yday + - 70*365 + + DIV(year_mod400 - 69, 4) + - DIV(year_mod400 - 1, 100) + + (year_mod400 + 299) / 400; + vdays = LONG2NUM(days_in400); + vdays = add(vdays, mul(q400, INT2FIX(97))); + vdays = add(vdays, mul(year1900, INT2FIX(365))); + wret = wadd(rb_time_magnify(v2w(ret)), wmul(rb_time_magnify(v2w(vdays)), WINT2FIXWV(86400))); + wret = wadd(wret, v2w(vtm->subsecx)); + + return wret; +} + +static st_table *zone_table; + +static int +zone_str_update(st_data_t *key, st_data_t *value, st_data_t arg, int existing) +{ + const char *s = (const char *)*key; + const char **ret = (const char **)arg; + + if (existing) { + *ret = (const char *)*value; + return ST_STOP; + } + *ret = s = strdup(s); + *key = *value = (st_data_t)s; + return ST_CONTINUE; +} + +static const char * +zone_str(const char *s) +{ + if (!zone_table) + zone_table = st_init_strtable(); + + st_update(zone_table, (st_data_t)s, zone_str_update, (st_data_t)&s); + return s; +} + +static void +gmtimew_noleapsecond(wideval_t timew, struct vtm *vtm) +{ + VALUE v; + int i, n, x, y; + const int *yday_offset; + int wday; + VALUE timev; + wideval_t timew2, w, w2; + + vtm->isdst = 0; + + split_second(timew, &timew2, &vtm->subsecx); + + wdivmod(timew2, WINT2FIXWV(86400), &w2, &w); + timev = w2v(w2); + v = w2v(w); + + wday = NUM2INT(mod(timev, INT2FIX(7))); + vtm->wday = (wday + 4) % 7; + + n = NUM2INT(v); + vtm->sec = n % 60; n = n / 60; + vtm->min = n % 60; n = n / 60; + vtm->hour = n; + + /* 97 leap days in the 400 year cycle */ + divmodv(timev, INT2FIX(400*365 + 97), &timev, &v); + vtm->year = mul(timev, INT2FIX(400)); + + /* n is the days in the 400 year cycle. + * the start of the cycle is 1970-01-01. */ + + n = NUM2INT(v); + y = 1970; + + /* 30 years including 7 leap days (1972, 1976, ... 1996), + * 31 days in January 2000 and + * 29 days in February 2000 + * from 1970-01-01 to 2000-02-29 */ + if (30*365+7+31+29-1 <= n) { + /* 2000-02-29 or after */ + if (n < 31*365+8) { + /* 2000-02-29 to 2000-12-31 */ + y += 30; + n -= 30*365+7; + goto found; + } + else { + /* 2001-01-01 or after */ + n -= 1; + } + } + + x = n / (365*100 + 24); + n = n % (365*100 + 24); + y += x * 100; + if (30*365+7+31+29-1 <= n) { + if (n < 31*365+7) { + y += 30; + n -= 30*365+7; + goto found; + } + else + n += 1; + } + + x = n / (365*4 + 1); + n = n % (365*4 + 1); + y += x * 4; + if (365*2+31+29-1 <= n) { + if (n < 365*2+366) { + y += 2; + n -= 365*2; + goto found; + } + else + n -= 1; + } + + x = n / 365; + n = n % 365; + y += x; + + found: + vtm->yday = n+1; + vtm->year = add(vtm->year, INT2NUM(y)); + + if (leap_year_p(y)) + yday_offset = leap_year_yday_offset; + else + yday_offset = common_year_yday_offset; + + for (i = 0; i < 12; i++) { + if (yday_offset[i] < n) { + vtm->mon = i+1; + vtm->mday = n - yday_offset[i]; + } + else + break; + } + + vtm->utc_offset = INT2FIX(0); + vtm->zone = "UTC"; +} + +static struct tm * +gmtime_with_leapsecond(const time_t *timep, struct tm *result) +{ +#if defined(HAVE_STRUCT_TM_TM_GMTOFF) + /* 4.4BSD counts leap seconds only with localtime, not with gmtime. */ + struct tm *t; + int sign; + int gmtoff_sec, gmtoff_min, gmtoff_hour, gmtoff_day; + long gmtoff; + t = LOCALTIME(timep, *result); + if (t == NULL) + return NULL; + + /* subtract gmtoff */ + if (t->tm_gmtoff < 0) { + sign = 1; + gmtoff = -t->tm_gmtoff; + } + else { + sign = -1; + gmtoff = t->tm_gmtoff; + } + gmtoff_sec = (int)(gmtoff % 60); + gmtoff = gmtoff / 60; + gmtoff_min = (int)(gmtoff % 60); + gmtoff = gmtoff / 60; + gmtoff_hour = (int)gmtoff; /* <= 12 */ + + gmtoff_sec *= sign; + gmtoff_min *= sign; + gmtoff_hour *= sign; + + gmtoff_day = 0; + + if (gmtoff_sec) { + /* If gmtoff_sec == 0, don't change result->tm_sec. + * It may be 60 which is a leap second. */ + result->tm_sec += gmtoff_sec; + if (result->tm_sec < 0) { + result->tm_sec += 60; + gmtoff_min -= 1; + } + if (60 <= result->tm_sec) { + result->tm_sec -= 60; + gmtoff_min += 1; + } + } + if (gmtoff_min) { + result->tm_min += gmtoff_min; + if (result->tm_min < 0) { + result->tm_min += 60; + gmtoff_hour -= 1; + } + if (60 <= result->tm_min) { + result->tm_min -= 60; + gmtoff_hour += 1; + } + } + if (gmtoff_hour) { + result->tm_hour += gmtoff_hour; + if (result->tm_hour < 0) { + result->tm_hour += 24; + gmtoff_day = -1; + } + if (24 <= result->tm_hour) { + result->tm_hour -= 24; + gmtoff_day = 1; + } + } + + if (gmtoff_day) { + if (gmtoff_day < 0) { + if (result->tm_yday == 0) { + result->tm_mday = 31; + result->tm_mon = 11; /* December */ + result->tm_year--; + result->tm_yday = leap_year_p(result->tm_year + 1900) ? 365 : 364; + } + else if (result->tm_mday == 1) { + const int *days_in_month = leap_year_p(result->tm_year + 1900) ? + leap_year_days_in_month : + common_year_days_in_month; + result->tm_mon--; + result->tm_mday = days_in_month[result->tm_mon]; + result->tm_yday--; + } + else { + result->tm_mday--; + result->tm_yday--; + } + result->tm_wday = (result->tm_wday + 6) % 7; + } + else { + int leap = leap_year_p(result->tm_year + 1900); + if (result->tm_yday == (leap ? 365 : 364)) { + result->tm_year++; + result->tm_mon = 0; /* January */ + result->tm_mday = 1; + result->tm_yday = 0; + } + else if (result->tm_mday == (leap ? leap_year_days_in_month : + common_year_days_in_month)[result->tm_mon]) { + result->tm_mon++; + result->tm_mday = 1; + result->tm_yday++; + } + else { + result->tm_mday++; + result->tm_yday++; + } + result->tm_wday = (result->tm_wday + 1) % 7; + } + } + result->tm_isdst = 0; + result->tm_gmtoff = 0; +#if defined(HAVE_TM_ZONE) + result->tm_zone = (char *)"UTC"; +#endif + return result; +#else + return GMTIME(timep, *result); +#endif +} + +static long this_year = 0; +static time_t known_leap_seconds_limit; +static int number_of_leap_seconds_known; + +static void +init_leap_second_info(void) +{ + /* + * leap seconds are determined by IERS. + * It is announced 6 months before the leap second. + * So no one knows leap seconds in the future after the next year. + */ + if (this_year == 0) { + time_t now; + struct tm *tm, result; + struct vtm vtm; + wideval_t timew; + now = time(NULL); + gmtime(&now); + tm = gmtime_with_leapsecond(&now, &result); + if (!tm) return; + this_year = tm->tm_year; + + if (TIMET_MAX - now < (time_t)(366*86400)) + known_leap_seconds_limit = TIMET_MAX; + else + known_leap_seconds_limit = now + (time_t)(366*86400); + + if (!gmtime_with_leapsecond(&known_leap_seconds_limit, &result)) + return; + + vtm.year = LONG2NUM(result.tm_year + 1900); + vtm.mon = result.tm_mon + 1; + vtm.mday = result.tm_mday; + vtm.hour = result.tm_hour; + vtm.min = result.tm_min; + vtm.sec = result.tm_sec; + vtm.subsecx = INT2FIX(0); + vtm.utc_offset = INT2FIX(0); + + timew = timegmw_noleapsecond(&vtm); + + number_of_leap_seconds_known = NUM2INT(w2v(wsub(TIMET2WV(known_leap_seconds_limit), rb_time_unmagnify(timew)))); + } +} + +static wideval_t +timegmw(struct vtm *vtm) +{ + wideval_t timew; + struct tm tm; + time_t t; + const char *errmsg; + + /* The first leap second is 1972-06-30 23:59:60 UTC. + * No leap seconds before. */ + if (gt(INT2FIX(1972), vtm->year)) + return timegmw_noleapsecond(vtm); + + init_leap_second_info(); + + timew = timegmw_noleapsecond(vtm); + + if (wlt(rb_time_magnify(TIMET2WV(known_leap_seconds_limit)), timew)) { + return wadd(timew, rb_time_magnify(WINT2WV(number_of_leap_seconds_known))); + } + + tm.tm_year = rb_long2int(NUM2LONG(vtm->year) - 1900); + tm.tm_mon = vtm->mon - 1; + tm.tm_mday = vtm->mday; + tm.tm_hour = vtm->hour; + tm.tm_min = vtm->min; + tm.tm_sec = vtm->sec; + tm.tm_isdst = 0; + + errmsg = find_time_t(&tm, 1, &t); + if (errmsg) + rb_raise(rb_eArgError, "%s", errmsg); + return wadd(rb_time_magnify(TIMET2WV(t)), v2w(vtm->subsecx)); +} + +static struct vtm * +gmtimew(wideval_t timew, struct vtm *result) +{ + time_t t; + struct tm tm; + VALUE subsecx; + wideval_t timew2; + + if (wlt(timew, WINT2FIXWV(0))) { + gmtimew_noleapsecond(timew, result); + return result; + } + + init_leap_second_info(); + + if (wlt(rb_time_magnify(TIMET2WV(known_leap_seconds_limit)), timew)) { + timew = wsub(timew, rb_time_magnify(WINT2WV(number_of_leap_seconds_known))); + gmtimew_noleapsecond(timew, result); + return result; + } + + split_second(timew, &timew2, &subsecx); + + t = WV2TIMET(timew2); + if (!gmtime_with_leapsecond(&t, &tm)) + return NULL; + + result->year = LONG2NUM((long)tm.tm_year + 1900); + result->mon = tm.tm_mon + 1; + result->mday = tm.tm_mday; + result->hour = tm.tm_hour; + result->min = tm.tm_min; + result->sec = tm.tm_sec; + result->subsecx = subsecx; + result->utc_offset = INT2FIX(0); + result->wday = tm.tm_wday; + result->yday = tm.tm_yday+1; + result->isdst = tm.tm_isdst; + result->zone = "UTC"; + + return result; +} + +static struct tm *localtime_with_gmtoff_zone(const time_t *t, struct tm *result, long *gmtoff, const char **zone); + +/* + * The idea is borrowed from Perl: + * http://web.archive.org/web/20080211114141/http://use.perl.org/articles/08/02/07/197204.shtml + * + * compat_common_month_table is generated by the following program. + * This table finds the last month which starts at the same day of a week. + * The year 2037 is not used because: + * http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=522949 + * + * #!/usr/bin/ruby + * + * require 'date' + * + * h = {} + * 2036.downto(2010) {|y| + * 1.upto(12) {|m| + * next if m == 2 && y % 4 == 0 + * d = Date.new(y,m,1) + * h[m] ||= {} + * h[m][d.wday] ||= y + * } + * } + * + * 1.upto(12) {|m| + * print "{" + * 0.upto(6) {|w| + * y = h[m][w] + * print " #{y}," + * } + * puts "}," + * } + * + */ +static int compat_common_month_table[12][7] = { + /* Sun Mon Tue Wed Thu Fri Sat */ + { 2034, 2035, 2036, 2031, 2032, 2027, 2033 }, /* January */ + { 2026, 2027, 2033, 2034, 2035, 2030, 2031 }, /* February */ + { 2026, 2032, 2033, 2034, 2035, 2030, 2036 }, /* March */ + { 2035, 2030, 2036, 2026, 2032, 2033, 2034 }, /* April */ + { 2033, 2034, 2035, 2030, 2036, 2026, 2032 }, /* May */ + { 2036, 2026, 2032, 2033, 2034, 2035, 2030 }, /* June */ + { 2035, 2030, 2036, 2026, 2032, 2033, 2034 }, /* July */ + { 2032, 2033, 2034, 2035, 2030, 2036, 2026 }, /* August */ + { 2030, 2036, 2026, 2032, 2033, 2034, 2035 }, /* September */ + { 2034, 2035, 2030, 2036, 2026, 2032, 2033 }, /* October */ + { 2026, 2032, 2033, 2034, 2035, 2030, 2036 }, /* November */ + { 2030, 2036, 2026, 2032, 2033, 2034, 2035 }, /* December */ +}; + +/* + * compat_leap_month_table is generated by following program. + * + * #!/usr/bin/ruby + * + * require 'date' + * + * h = {} + * 2037.downto(2010) {|y| + * 1.upto(12) {|m| + * next unless m == 2 && y % 4 == 0 + * d = Date.new(y,m,1) + * h[m] ||= {} + * h[m][d.wday] ||= y + * } + * } + * + * 2.upto(2) {|m| + * 0.upto(6) {|w| + * y = h[m][w] + * print " #{y}," + * } + * puts + * } + */ +static int compat_leap_month_table[7] = { +/* Sun Mon Tue Wed Thu Fri Sat */ + 2032, 2016, 2028, 2012, 2024, 2036, 2020, /* February */ +}; + +static int +calc_wday(int year, int month, int day) +{ + int a, y, m; + int wday; + + a = (14 - month) / 12; + y = year + 4800 - a; + m = month + 12 * a - 3; + wday = day + (153*m+2)/5 + 365*y + y/4 - y/100 + y/400 + 2; + wday = wday % 7; + return wday; +} + +static VALUE +guess_local_offset(struct vtm *vtm_utc, int *isdst_ret, const char **zone_ret) +{ + struct tm tm; + long gmtoff; + const char *zone; + time_t t; + struct vtm vtm2; + VALUE timev; + int y, wday; + + /* Daylight Saving Time was introduced in 1916. + * So we don't need to care about DST before that. */ + if (lt(vtm_utc->year, INT2FIX(1916))) { + VALUE off = INT2FIX(0); + int isdst = 0; + zone = "UTC"; + +# if defined(NEGATIVE_TIME_T) +# if SIZEOF_TIME_T <= 4 + /* 1901-12-13 20:45:52 UTC : The oldest time in 32-bit signed time_t. */ +# define THE_TIME_OLD_ENOUGH ((time_t)0x80000000) +# else + /* Since the Royal Greenwich Observatory was commissioned in 1675, + no timezone defined using GMT at 1600. */ +# define THE_TIME_OLD_ENOUGH ((time_t)(1600-1970)*366*24*60*60) +# endif + if (localtime_with_gmtoff_zone((t = THE_TIME_OLD_ENOUGH, &t), &tm, &gmtoff, &zone)) { + off = LONG2FIX(gmtoff); + isdst = tm.tm_isdst; + } + else +# endif + /* 1970-01-01 00:00:00 UTC : The Unix epoch - the oldest time in portable time_t. */ + if (localtime_with_gmtoff_zone((t = 0, &t), &tm, &gmtoff, &zone)) { + off = LONG2FIX(gmtoff); + isdst = tm.tm_isdst; + } + + if (isdst_ret) + *isdst_ret = isdst; + if (zone_ret) + *zone_ret = zone; + return off; + } + + /* It is difficult to guess the future. */ + + vtm2 = *vtm_utc; + + /* guess using a year before 2038. */ + y = NUM2INT(mod(vtm_utc->year, INT2FIX(400))); + wday = calc_wday(y, vtm_utc->mon, 1); + if (vtm_utc->mon == 2 && leap_year_p(y)) + vtm2.year = INT2FIX(compat_leap_month_table[wday]); + else + vtm2.year = INT2FIX(compat_common_month_table[vtm_utc->mon-1][wday]); + + timev = w2v(rb_time_unmagnify(timegmw(&vtm2))); + t = NUM2TIMET(timev); + zone = "UTC"; + if (localtime_with_gmtoff_zone(&t, &tm, &gmtoff, &zone)) { + if (isdst_ret) + *isdst_ret = tm.tm_isdst; + if (zone_ret) + *zone_ret = zone; + return LONG2FIX(gmtoff); + } + + { + /* Use the current time offset as a last resort. */ + static time_t now = 0; + static long now_gmtoff = 0; + static const char *now_zone = "UTC"; + if (now == 0) { + now = time(NULL); + localtime_with_gmtoff_zone(&now, &tm, &now_gmtoff, &now_zone); + } + if (isdst_ret) + *isdst_ret = tm.tm_isdst; + if (zone_ret) + *zone_ret = now_zone; + return LONG2FIX(now_gmtoff); + } +} + +static VALUE +small_vtm_sub(struct vtm *vtm1, struct vtm *vtm2) +{ + int off; + + off = vtm1->sec - vtm2->sec; + off += (vtm1->min - vtm2->min) * 60; + off += (vtm1->hour - vtm2->hour) * 3600; + if (ne(vtm1->year, vtm2->year)) + off += lt(vtm1->year, vtm2->year) ? -24*3600 : 24*3600; + else if (vtm1->mon != vtm2->mon) + off += vtm1->mon < vtm2->mon ? -24*3600 : 24*3600; + else if (vtm1->mday != vtm2->mday) + off += vtm1->mday < vtm2->mday ? -24*3600 : 24*3600; + + return INT2FIX(off); +} + +static wideval_t +timelocalw(struct vtm *vtm) +{ + time_t t; + struct tm tm; + VALUE v; + wideval_t timew1, timew2; + struct vtm vtm1, vtm2; + int n; + + if (FIXNUM_P(vtm->year)) { + long l = FIX2LONG(vtm->year) - 1900; + if (l < INT_MIN || INT_MAX < l) + goto no_localtime; + tm.tm_year = (int)l; + } + else { + v = sub(vtm->year, INT2FIX(1900)); + if (lt(v, INT2NUM(INT_MIN)) || lt(INT2NUM(INT_MAX), v)) + goto no_localtime; + tm.tm_year = NUM2INT(v); + } + + tm.tm_mon = vtm->mon-1; + tm.tm_mday = vtm->mday; + tm.tm_hour = vtm->hour; + tm.tm_min = vtm->min; + tm.tm_sec = vtm->sec; + tm.tm_isdst = vtm->isdst == VTM_ISDST_INITVAL ? -1 : vtm->isdst; + + if (find_time_t(&tm, 0, &t)) + goto no_localtime; + return wadd(rb_time_magnify(TIMET2WV(t)), v2w(vtm->subsecx)); + + no_localtime: + timew1 = timegmw(vtm); + + if (!localtimew(timew1, &vtm1)) + rb_raise(rb_eArgError, "localtimew error"); + + n = vtmcmp(vtm, &vtm1); + if (n == 0) { + timew1 = wsub(timew1, rb_time_magnify(WINT2FIXWV(12*3600))); + if (!localtimew(timew1, &vtm1)) + rb_raise(rb_eArgError, "localtimew error"); + n = 1; + } + + if (n < 0) { + timew2 = timew1; + vtm2 = vtm1; + timew1 = wsub(timew1, rb_time_magnify(WINT2FIXWV(24*3600))); + if (!localtimew(timew1, &vtm1)) + rb_raise(rb_eArgError, "localtimew error"); + } + else { + timew2 = wadd(timew1, rb_time_magnify(WINT2FIXWV(24*3600))); + if (!localtimew(timew2, &vtm2)) + rb_raise(rb_eArgError, "localtimew error"); + } + timew1 = wadd(timew1, rb_time_magnify(v2w(small_vtm_sub(vtm, &vtm1)))); + timew2 = wadd(timew2, rb_time_magnify(v2w(small_vtm_sub(vtm, &vtm2)))); + + if (weq(timew1, timew2)) + return timew1; + + if (!localtimew(timew1, &vtm1)) + rb_raise(rb_eArgError, "localtimew error"); + if (vtm->hour != vtm1.hour || vtm->min != vtm1.min || vtm->sec != vtm1.sec) + return timew2; + + if (!localtimew(timew2, &vtm2)) + rb_raise(rb_eArgError, "localtimew error"); + if (vtm->hour != vtm2.hour || vtm->min != vtm2.min || vtm->sec != vtm2.sec) + return timew1; + + if (vtm->isdst) + return lt(vtm1.utc_offset, vtm2.utc_offset) ? timew2 : timew1; + else + return lt(vtm1.utc_offset, vtm2.utc_offset) ? timew1 : timew2; +} + +static struct tm * +localtime_with_gmtoff_zone(const time_t *t, struct tm *result, long *gmtoff, const char **zone) +{ + struct tm tm; + + if (LOCALTIME(t, tm)) { +#if defined(HAVE_STRUCT_TM_TM_GMTOFF) + *gmtoff = tm.tm_gmtoff; +#else + struct tm *u, *l; + long off; + struct tm tmbuf; + l = &tm; + u = GMTIME(t, tmbuf); + if (!u) + return NULL; + if (l->tm_year != u->tm_year) + off = l->tm_year < u->tm_year ? -1 : 1; + else if (l->tm_mon != u->tm_mon) + off = l->tm_mon < u->tm_mon ? -1 : 1; + else if (l->tm_mday != u->tm_mday) + off = l->tm_mday < u->tm_mday ? -1 : 1; + else + off = 0; + off = off * 24 + l->tm_hour - u->tm_hour; + off = off * 60 + l->tm_min - u->tm_min; + off = off * 60 + l->tm_sec - u->tm_sec; + *gmtoff = off; +#endif + + if (zone) { +#if defined(HAVE_TM_ZONE) + if (tm.tm_zone) + *zone = zone_str(tm.tm_zone); + else + *zone = zone_str("(NO-TIMEZONE-ABBREVIATION)"); +#elif defined(HAVE_TZNAME) && defined(HAVE_DAYLIGHT) + /* this needs tzset or localtime, instead of localtime_r */ + *zone = zone_str(tzname[daylight && tm.tm_isdst]); +#else + { + char buf[64]; + strftime(buf, sizeof(buf), "%Z", &tm); + *zone = zone_str(buf); + } +#endif + } + + *result = tm; + return result; + } + return NULL; +} + +static int +timew_out_of_timet_range(wideval_t timew) +{ + VALUE timexv; +#if WIDEVALUE_IS_WIDER && SIZEOF_TIME_T < SIZEOF_INT64_T + if (FIXWV_P(timew)) { + wideint_t t = FIXWV2WINT(timew); + if (t < TIME_SCALE * (wideint_t)TIMET_MIN || + TIME_SCALE * (1 + (wideint_t)TIMET_MAX) <= t) + return 1; + return 0; + } +#endif +#if SIZEOF_TIME_T == SIZEOF_INT64_T + if (FIXWV_P(timew)) { + wideint_t t = FIXWV2WINT(timew); + if (~(time_t)0 <= 0) { + return 0; + } + else { + if (t < 0) + return 1; + return 0; + } + } +#endif + timexv = w2v(timew); + if (lt(timexv, mul(INT2FIX(TIME_SCALE), TIMET2NUM(TIMET_MIN))) || + le(mul(INT2FIX(TIME_SCALE), add(TIMET2NUM(TIMET_MAX), INT2FIX(1))), timexv)) + return 1; + return 0; +} + +static struct vtm * +localtimew(wideval_t timew, struct vtm *result) +{ + VALUE subsecx, offset; + const char *zone; + int isdst; + + if (!timew_out_of_timet_range(timew)) { + time_t t; + struct tm tm; + long gmtoff; + wideval_t timew2; + + split_second(timew, &timew2, &subsecx); + + t = WV2TIMET(timew2); + + if (localtime_with_gmtoff_zone(&t, &tm, &gmtoff, &zone)) { + result->year = LONG2NUM((long)tm.tm_year + 1900); + result->mon = tm.tm_mon + 1; + result->mday = tm.tm_mday; + result->hour = tm.tm_hour; + result->min = tm.tm_min; + result->sec = tm.tm_sec; + result->subsecx = subsecx; + result->wday = tm.tm_wday; + result->yday = tm.tm_yday+1; + result->isdst = tm.tm_isdst; + result->utc_offset = LONG2NUM(gmtoff); + result->zone = zone; + return result; + } + } + + if (!gmtimew(timew, result)) + return NULL; + + offset = guess_local_offset(result, &isdst, &zone); + + if (!gmtimew(wadd(timew, rb_time_magnify(v2w(offset))), result)) + return NULL; + + result->utc_offset = offset; + result->isdst = isdst; + result->zone = zone; + + return result; +} + +PACKED_STRUCT_UNALIGNED(struct time_object { + wideval_t timew; /* time_t value * TIME_SCALE. possibly Rational. */ + struct vtm vtm; + uint8_t gmt:3; /* 0:utc 1:localtime 2:fixoff 3:init */ + uint8_t tm_got:1; +}); + +#define GetTimeval(obj, tobj) ((tobj) = get_timeval(obj)) +#define GetNewTimeval(obj, tobj) ((tobj) = get_new_timeval(obj)) + +#define IsTimeval(obj) rb_typeddata_is_kind_of((obj), &time_data_type) +#define TIME_INIT_P(tobj) ((tobj)->gmt != TO_GMT_INITVAL) + +#define TIME_UTC_P(tobj) ((tobj)->gmt == 1) +#define TIME_SET_UTC(tobj) ((tobj)->gmt = 1) + +#define TIME_LOCALTIME_P(tobj) ((tobj)->gmt == 0) +#define TIME_SET_LOCALTIME(tobj) ((tobj)->gmt = 0) + +#define TIME_FIXOFF_P(tobj) ((tobj)->gmt == 2) +#define TIME_SET_FIXOFF(tobj, off) \ + ((tobj)->gmt = 2, \ + (tobj)->vtm.utc_offset = (off), \ + (tobj)->vtm.zone = NULL) + +#define TIME_COPY_GMT(tobj1, tobj2) \ + ((tobj1)->gmt = (tobj2)->gmt, \ + (tobj1)->vtm.utc_offset = (tobj2)->vtm.utc_offset, \ + (tobj1)->vtm.zone = (tobj2)->vtm.zone) + +static VALUE time_get_tm(VALUE, struct time_object *); +#define MAKE_TM(time, tobj) \ + do { \ + if ((tobj)->tm_got == 0) { \ + time_get_tm((time), (tobj)); \ + } \ + } while (0) + +static void +time_mark(void *ptr) +{ + struct time_object *tobj = ptr; + if (!FIXWV_P(tobj->timew)) + rb_gc_mark(w2v(tobj->timew)); + rb_gc_mark(tobj->vtm.year); + rb_gc_mark(tobj->vtm.subsecx); + rb_gc_mark(tobj->vtm.utc_offset); +} + +static size_t +time_memsize(const void *tobj) +{ + return sizeof(struct time_object); +} + +static const rb_data_type_t time_data_type = { + "time", + {time_mark, RUBY_TYPED_DEFAULT_FREE, time_memsize,}, + 0, 0, RUBY_TYPED_FREE_IMMEDIATELY +}; + +static VALUE +time_s_alloc(VALUE klass) +{ + VALUE obj; + struct time_object *tobj; + + obj = TypedData_Make_Struct(klass, struct time_object, &time_data_type, tobj); + tobj->gmt = TO_GMT_INITVAL; + tobj->tm_got=0; + tobj->timew = WINT2FIXWV(0); + + return obj; +} + +static struct time_object * +get_timeval(VALUE obj) +{ + struct time_object *tobj; + TypedData_Get_Struct(obj, struct time_object, &time_data_type, tobj); + if (!TIME_INIT_P(tobj)) { + rb_raise(rb_eTypeError, "uninitialized %"PRIsVALUE, rb_obj_class(obj)); + } + return tobj; +} + +static struct time_object * +get_new_timeval(VALUE obj) +{ + struct time_object *tobj; + TypedData_Get_Struct(obj, struct time_object, &time_data_type, tobj); + if (TIME_INIT_P(tobj)) { + rb_raise(rb_eTypeError, "already initialized %"PRIsVALUE, rb_obj_class(obj)); + } + return tobj; +} + +static void +time_modify(VALUE time) +{ + rb_check_frozen(time); + rb_check_trusted(time); +} + +static wideval_t +timespec2timew(struct timespec *ts) +{ + wideval_t timew; + + timew = rb_time_magnify(TIMET2WV(ts->tv_sec)); + if (ts->tv_nsec) + timew = wadd(timew, wmulquoll(WINT2WV(ts->tv_nsec), TIME_SCALE, 1000000000)); + return timew; +} + +static struct timespec +timew2timespec(wideval_t timew) +{ + VALUE subsecx; + struct timespec ts; + wideval_t timew2; + + if (timew_out_of_timet_range(timew)) + rb_raise(rb_eArgError, "time out of system range"); + split_second(timew, &timew2, &subsecx); + ts.tv_sec = WV2TIMET(timew2); + ts.tv_nsec = NUM2LONG(mulquo(subsecx, INT2FIX(1000000000), INT2FIX(TIME_SCALE))); + return ts; +} + +static struct timespec * +timew2timespec_exact(wideval_t timew, struct timespec *ts) +{ + VALUE subsecx; + wideval_t timew2; + VALUE nsecv; + + if (timew_out_of_timet_range(timew)) + return NULL; + split_second(timew, &timew2, &subsecx); + ts->tv_sec = WV2TIMET(timew2); + nsecv = mulquo(subsecx, INT2FIX(1000000000), INT2FIX(TIME_SCALE)); + if (!FIXNUM_P(nsecv)) + return NULL; + ts->tv_nsec = NUM2LONG(nsecv); + return ts; +} + +static VALUE +time_init_0(VALUE time) +{ + struct time_object *tobj; + struct timespec ts; + + time_modify(time); + GetNewTimeval(time, tobj); + tobj->gmt = 0; + tobj->tm_got=0; + tobj->timew = WINT2FIXWV(0); +#ifdef HAVE_CLOCK_GETTIME + if (clock_gettime(CLOCK_REALTIME, &ts) == -1) { + rb_sys_fail("clock_gettime"); + } +#else + { + struct timeval tv; + if (gettimeofday(&tv, 0) < 0) { + rb_sys_fail("gettimeofday"); + } + ts.tv_sec = tv.tv_sec; + ts.tv_nsec = tv.tv_usec * 1000; + } +#endif + tobj->timew = timespec2timew(&ts); + + return time; +} + +static VALUE +time_set_utc_offset(VALUE time, VALUE off) +{ + struct time_object *tobj; + off = num_exact(off); + + time_modify(time); + GetTimeval(time, tobj); + + tobj->tm_got = 0; + TIME_SET_FIXOFF(tobj, off); + + return time; +} + +static void +vtm_add_offset(struct vtm *vtm, VALUE off) +{ + int sign; + VALUE subsec, v; + int sec, min, hour; + int day; + + vtm->utc_offset = sub(vtm->utc_offset, off); + + if (lt(off, INT2FIX(0))) { + sign = -1; + off = neg(off); + } + else { + sign = 1; + } + divmodv(off, INT2FIX(1), &off, &subsec); + divmodv(off, INT2FIX(60), &off, &v); + sec = NUM2INT(v); + divmodv(off, INT2FIX(60), &off, &v); + min = NUM2INT(v); + divmodv(off, INT2FIX(24), &off, &v); + hour = NUM2INT(v); + + if (sign < 0) { + subsec = neg(subsec); + sec = -sec; + min = -min; + hour = -hour; + } + + day = 0; + + if (!rb_equal(subsec, INT2FIX(0))) { + vtm->subsecx = add(vtm->subsecx, w2v(rb_time_magnify(v2w(subsec)))); + if (lt(vtm->subsecx, INT2FIX(0))) { + vtm->subsecx = add(vtm->subsecx, INT2FIX(TIME_SCALE)); + sec -= 1; + } + if (le(INT2FIX(TIME_SCALE), vtm->subsecx)) { + vtm->subsecx = sub(vtm->subsecx, INT2FIX(TIME_SCALE)); + sec += 1; + } + goto not_zero_sec; + } + if (sec) { + not_zero_sec: + /* If sec + subsec == 0, don't change vtm->sec. + * It may be 60 which is a leap second. */ + sec += vtm->sec; + if (sec < 0) { + sec += 60; + min -= 1; + } + if (60 <= sec) { + sec -= 60; + min += 1; + } + vtm->sec = sec; + } + if (min) { + min += vtm->min; + if (min < 0) { + min += 60; + hour -= 1; + } + if (60 <= min) { + min -= 60; + hour += 1; + } + vtm->min = min; + } + if (hour) { + hour += vtm->hour; + if (hour < 0) { + hour += 24; + day = -1; + } + if (24 <= hour) { + hour -= 24; + day = 1; + } + vtm->hour = hour; + } + + if (day) { + if (day < 0) { + if (vtm->mon == 1 && vtm->mday == 1) { + vtm->mday = 31; + vtm->mon = 12; /* December */ + vtm->year = sub(vtm->year, INT2FIX(1)); + vtm->yday = leap_year_v_p(vtm->year) ? 365 : 364; + } + else if (vtm->mday == 1) { + const int *days_in_month = leap_year_v_p(vtm->year) ? + leap_year_days_in_month : + common_year_days_in_month; + vtm->mon--; + vtm->mday = days_in_month[vtm->mon-1]; + vtm->yday--; + } + else { + vtm->mday--; + vtm->yday--; + } + vtm->wday = (vtm->wday + 6) % 7; + } + else { + int leap = leap_year_v_p(vtm->year); + if (vtm->mon == 12 && vtm->mday == 31) { + vtm->year = add(vtm->year, INT2FIX(1)); + vtm->mon = 1; /* January */ + vtm->mday = 1; + vtm->yday = 1; + } + else if (vtm->mday == (leap ? leap_year_days_in_month : + common_year_days_in_month)[vtm->mon-1]) { + vtm->mon++; + vtm->mday = 1; + vtm->yday++; + } + else { + vtm->mday++; + vtm->yday++; + } + vtm->wday = (vtm->wday + 1) % 7; + } + } +} + +static VALUE +utc_offset_arg(VALUE arg) +{ + VALUE tmp; + if (!NIL_P(tmp = rb_check_string_type(arg))) { + int n = 0; + char *s = RSTRING_PTR(tmp); + if (!rb_enc_str_asciicompat_p(tmp)) { + invalid_utc_offset: + rb_raise(rb_eArgError, "\"+HH:MM\" or \"-HH:MM\" expected for utc_offset"); + } + switch (RSTRING_LEN(tmp)) { + case 9: + if (s[6] != ':') goto invalid_utc_offset; + if (!ISDIGIT(s[7]) || !ISDIGIT(s[8])) goto invalid_utc_offset; + n += (s[7] * 10 + s[8] - '0' * 11); + case 6: + if (s[0] != '+' && s[0] != '-') goto invalid_utc_offset; + if (!ISDIGIT(s[1]) || !ISDIGIT(s[2])) goto invalid_utc_offset; + if (s[3] != ':') goto invalid_utc_offset; + if (!ISDIGIT(s[4]) || !ISDIGIT(s[5])) goto invalid_utc_offset; + if (s[4] > '5') goto invalid_utc_offset; + break; + default: + goto invalid_utc_offset; + } + n += (s[1] * 10 + s[2] - '0' * 11) * 3600; + n += (s[4] * 10 + s[5] - '0' * 11) * 60; + if (s[0] == '-') + n = -n; + return INT2FIX(n); + } + else { + return num_exact(arg); + } +} + +static VALUE +time_init_1(int argc, VALUE *argv, VALUE time) +{ + struct vtm vtm; + VALUE v[7]; + struct time_object *tobj; + + vtm.wday = VTM_WDAY_INITVAL; + vtm.yday = 0; + vtm.zone = ""; + + /* year mon mday hour min sec off */ + rb_scan_args(argc, argv, "16", &v[0],&v[1],&v[2],&v[3],&v[4],&v[5],&v[6]); + + vtm.year = obj2vint(v[0]); + + vtm.mon = NIL_P(v[1]) ? 1 : month_arg(v[1]); + + vtm.mday = NIL_P(v[2]) ? 1 : obj2ubits(v[2], 5); + + vtm.hour = NIL_P(v[3]) ? 0 : obj2ubits(v[3], 5); + + vtm.min = NIL_P(v[4]) ? 0 : obj2ubits(v[4], 6); + + vtm.subsecx = INT2FIX(0); + vtm.sec = NIL_P(v[5]) ? 0 : obj2subsecx(v[5], &vtm.subsecx); + + vtm.isdst = VTM_ISDST_INITVAL; + vtm.utc_offset = Qnil; + if (!NIL_P(v[6])) { + VALUE arg = v[6]; + if (arg == ID2SYM(rb_intern("dst"))) + vtm.isdst = 1; + else if (arg == ID2SYM(rb_intern("std"))) + vtm.isdst = 0; + else + vtm.utc_offset = utc_offset_arg(arg); + } + + validate_vtm(&vtm); + + time_modify(time); + GetNewTimeval(time, tobj); + tobj->gmt = 0; + tobj->tm_got=0; + tobj->timew = WINT2FIXWV(0); + + if (!NIL_P(vtm.utc_offset)) { + VALUE off = vtm.utc_offset; + vtm_add_offset(&vtm, neg(off)); + vtm.utc_offset = Qnil; + tobj->timew = timegmw(&vtm); + return time_set_utc_offset(time, off); + } + else { + tobj->timew = timelocalw(&vtm); + return time_localtime(time); + } +} + + +/* + * call-seq: + * Time.new -> time + * Time.new(year, month=nil, day=nil, hour=nil, min=nil, sec=nil, utc_offset=nil) -> time + * + * Returns a Time object. + * + * It is initialized to the current system time if no argument is given. + * + * *Note:* The new object will use the resolution available on your + * system clock, and may include fractional seconds. + * + * If one or more arguments specified, the time is initialized to the specified + * time. + * + * +sec+ may have fraction if it is a rational. + * + * +utc_offset+ is the offset from UTC. + * It can be a string such as "+09:00" or a number of seconds such as 32400. + * + * a = Time.new #=> 2007-11-19 07:50:02 -0600 + * b = Time.new #=> 2007-11-19 07:50:02 -0600 + * a == b #=> false + * "%.6f" % a.to_f #=> "1195480202.282373" + * "%.6f" % b.to_f #=> "1195480202.283415" + * + * Time.new(2008,6,21, 13,30,0, "+09:00") #=> 2008-06-21 13:30:00 +0900 + * + * # A trip for RubyConf 2007 + * t1 = Time.new(2007,11,1,15,25,0, "+09:00") # JST (Narita) + * t2 = Time.new(2007,11,1,12, 5,0, "-05:00") # CDT (Minneapolis) + * t3 = Time.new(2007,11,1,13,25,0, "-05:00") # CDT (Minneapolis) + * t4 = Time.new(2007,11,1,16,53,0, "-04:00") # EDT (Charlotte) + * t5 = Time.new(2007,11,5, 9,24,0, "-05:00") # EST (Charlotte) + * t6 = Time.new(2007,11,5,11,21,0, "-05:00") # EST (Detroit) + * t7 = Time.new(2007,11,5,13,45,0, "-05:00") # EST (Detroit) + * t8 = Time.new(2007,11,6,17,10,0, "+09:00") # JST (Narita) + * p((t2-t1)/3600.0) #=> 10.666666666666666 + * p((t4-t3)/3600.0) #=> 2.466666666666667 + * p((t6-t5)/3600.0) #=> 1.95 + * p((t8-t7)/3600.0) #=> 13.416666666666666 + * + */ + +static VALUE +time_init(int argc, VALUE *argv, VALUE time) +{ + if (argc == 0) + return time_init_0(time); + else + return time_init_1(argc, argv, time); +} + +static void +time_overflow_p(time_t *secp, long *nsecp) +{ + time_t sec = *secp; + long nsec = *nsecp; + long sec2; + + if (nsec >= 1000000000) { /* nsec positive overflow */ + sec2 = nsec / 1000000000; + if (TIMET_MAX - sec2 < sec) { + rb_raise(rb_eRangeError, "out of Time range"); + } + nsec -= sec2 * 1000000000; + sec += sec2; + } + else if (nsec < 0) { /* nsec negative overflow */ + sec2 = NDIV(nsec,1000000000); /* negative div */ + if (sec < TIMET_MIN - sec2) { + rb_raise(rb_eRangeError, "out of Time range"); + } + nsec -= sec2 * 1000000000; + sec += sec2; + } +#ifndef NEGATIVE_TIME_T + if (sec < 0) + rb_raise(rb_eArgError, "time must be positive"); +#endif + *secp = sec; + *nsecp = nsec; +} + +static wideval_t +nsec2timew(time_t sec, long nsec) +{ + struct timespec ts; + time_overflow_p(&sec, &nsec); + ts.tv_sec = sec; + ts.tv_nsec = nsec; + return timespec2timew(&ts); +} + +static VALUE +time_new_timew(VALUE klass, wideval_t timew) +{ + VALUE time = time_s_alloc(klass); + struct time_object *tobj; + + tobj = DATA_PTR(time); /* skip type check */ + tobj->gmt = 0; + tobj->timew = timew; + + return time; +} + +VALUE +rb_time_new(time_t sec, long usec) +{ + wideval_t timew; + + if (usec >= 1000000) { + long sec2 = usec / 1000000; + if (sec > TIMET_MAX - sec2) { + rb_raise(rb_eRangeError, "out of Time range"); + } + usec -= sec2 * 1000000; + sec += sec2; + } + else if (usec < 0) { + long sec2 = NDIV(usec,1000000); /* negative div */ + if (sec < TIMET_MIN - sec2) { + rb_raise(rb_eRangeError, "out of Time range"); + } + usec -= sec2 * 1000000; + sec += sec2; + } + + timew = nsec2timew(sec, usec * 1000); + return time_new_timew(rb_cTime, timew); +} + +VALUE +rb_time_nano_new(time_t sec, long nsec) +{ + return time_new_timew(rb_cTime, nsec2timew(sec, nsec)); +} + +VALUE +rb_time_num_new(VALUE timev, VALUE off) +{ + VALUE time = time_new_timew(rb_cTime, rb_time_magnify(v2w(timev))); + + if (!NIL_P(off)) { + off = utc_offset_arg(off); + validate_utc_offset(off); + time_set_utc_offset(time, off); + return time; + } + + return time; +} + +static struct timespec +time_timespec(VALUE num, int interval) +{ + struct timespec t; + const char *tstr = interval ? "time interval" : "time"; + VALUE i, f, ary; + +#ifndef NEGATIVE_TIME_T + interval = 1; +#endif + + switch (TYPE(num)) { + case T_FIXNUM: + t.tv_sec = NUM2TIMET(num); + if (interval && t.tv_sec < 0) + rb_raise(rb_eArgError, "%s must be positive", tstr); + t.tv_nsec = 0; + break; + + case T_FLOAT: + if (interval && RFLOAT_VALUE(num) < 0.0) + rb_raise(rb_eArgError, "%s must be positive", tstr); + else { + double f, d; + + d = modf(RFLOAT_VALUE(num), &f); + if (d >= 0) { + t.tv_nsec = (int)(d*1e9+0.5); + if (t.tv_nsec >= 1000000000) { + t.tv_nsec -= 1000000000; + f += 1; + } + } + else if ((t.tv_nsec = (int)(-d*1e9+0.5)) > 0) { + t.tv_nsec = 1000000000 - t.tv_nsec; + f -= 1; + } + t.tv_sec = (time_t)f; + if (f != t.tv_sec) { + rb_raise(rb_eRangeError, "%f out of Time range", RFLOAT_VALUE(num)); + } + } + break; + + case T_BIGNUM: + t.tv_sec = NUM2TIMET(num); + if (interval && t.tv_sec < 0) + rb_raise(rb_eArgError, "%s must be positive", tstr); + t.tv_nsec = 0; + break; + + default: + i = INT2FIX(1); + ary = rb_check_funcall(num, id_divmod, 1, &i); + if (ary != Qundef && !NIL_P(ary = rb_check_array_type(ary))) { + i = rb_ary_entry(ary, 0); + f = rb_ary_entry(ary, 1); + t.tv_sec = NUM2TIMET(i); + if (interval && t.tv_sec < 0) + rb_raise(rb_eArgError, "%s must be positive", tstr); + f = rb_funcall(f, id_mul, 1, INT2FIX(1000000000)); + t.tv_nsec = NUM2LONG(f); + } + else { + rb_raise(rb_eTypeError, "can't convert %s into %s", + rb_obj_classname(num), tstr); + } + break; + } + return t; +} + +static struct timeval +time_timeval(VALUE num, int interval) +{ + struct timespec ts; + struct timeval tv; + + ts = time_timespec(num, interval); + tv.tv_sec = (TYPEOF_TIMEVAL_TV_SEC)ts.tv_sec; + tv.tv_usec = (TYPEOF_TIMEVAL_TV_USEC)(ts.tv_nsec / 1000); + + return tv; +} + +struct timeval +rb_time_interval(VALUE num) +{ + return time_timeval(num, TRUE); +} + +struct timeval +rb_time_timeval(VALUE time) +{ + struct time_object *tobj; + struct timeval t; + struct timespec ts; + + if (IsTimeval(time)) { + GetTimeval(time, tobj); + ts = timew2timespec(tobj->timew); + t.tv_sec = (TYPEOF_TIMEVAL_TV_SEC)ts.tv_sec; + t.tv_usec = (TYPEOF_TIMEVAL_TV_USEC)(ts.tv_nsec / 1000); + return t; + } + return time_timeval(time, FALSE); +} + +struct timespec +rb_time_timespec(VALUE time) +{ + struct time_object *tobj; + struct timespec t; + + if (IsTimeval(time)) { + GetTimeval(time, tobj); + t = timew2timespec(tobj->timew); + return t; + } + return time_timespec(time, FALSE); +} + +/* + * call-seq: + * Time.now -> time + * + * Creates a new Time object for the current time. + * This is same as Time.new without arguments. + * + * Time.now #=> 2009-06-24 12:39:54 +0900 + */ + +static VALUE +time_s_now(VALUE klass) +{ + return rb_class_new_instance(0, NULL, klass); +} + +/* + * call-seq: + * Time.at(time) -> time + * Time.at(seconds_with_frac) -> time + * Time.at(seconds, microseconds_with_frac) -> time + * + * Creates a new Time object with the value given by +time+, + * the given number of +seconds_with_frac+, or + * +seconds+ and +microseconds_with_frac+ since the Epoch. + * +seconds_with_frac+ and +microseconds_with_frac+ + * can be an Integer, Float, Rational, or other Numeric. + * non-portable feature allows the offset to be negative on some systems. + * + * If a numeric argument is given, the result is in local time. + * + * Time.at(0) #=> 1969-12-31 18:00:00 -0600 + * Time.at(Time.at(0)) #=> 1969-12-31 18:00:00 -0600 + * Time.at(946702800) #=> 1999-12-31 23:00:00 -0600 + * Time.at(-284061600) #=> 1960-12-31 00:00:00 -0600 + * Time.at(946684800.2).usec #=> 200000 + * Time.at(946684800, 123456.789).nsec #=> 123456789 + */ + +static VALUE +time_s_at(int argc, VALUE *argv, VALUE klass) +{ + VALUE time, t; + wideval_t timew; + + if (rb_scan_args(argc, argv, "11", &time, &t) == 2) { + time = num_exact(time); + t = num_exact(t); + timew = wadd(rb_time_magnify(v2w(time)), wmulquoll(v2w(t), TIME_SCALE, 1000000)); + t = time_new_timew(klass, timew); + } + else if (IsTimeval(time)) { + struct time_object *tobj, *tobj2; + GetTimeval(time, tobj); + t = time_new_timew(klass, tobj->timew); + GetTimeval(t, tobj2); + TIME_COPY_GMT(tobj2, tobj); + } + else { + timew = rb_time_magnify(v2w(num_exact(time))); + t = time_new_timew(klass, timew); + } + + return t; +} + +static const char months[][4] = { + "jan", "feb", "mar", "apr", "may", "jun", + "jul", "aug", "sep", "oct", "nov", "dec", +}; + +static int +obj2int(VALUE obj) +{ + if (RB_TYPE_P(obj, T_STRING)) { + obj = rb_str_to_inum(obj, 10, FALSE); + } + + return NUM2INT(obj); +} + +static uint32_t +obj2ubits(VALUE obj, size_t bits) +{ + static const uint32_t u32max = (uint32_t)-1; + const uint32_t usable_mask = ~(u32max << bits); + uint32_t rv; + int tmp = obj2int(obj); + + if (tmp < 0) + rb_raise(rb_eArgError, "argument out of range"); + rv = tmp; + if ((rv & usable_mask) != rv) + rb_raise(rb_eArgError, "argument out of range"); + return rv; +} + +static VALUE +obj2vint(VALUE obj) +{ + if (RB_TYPE_P(obj, T_STRING)) { + obj = rb_str_to_inum(obj, 10, FALSE); + } + else { + obj = rb_to_int(obj); + } + + return obj; +} + +static uint32_t +obj2subsecx(VALUE obj, VALUE *subsecx) +{ + VALUE subsec; + + if (RB_TYPE_P(obj, T_STRING)) { + obj = rb_str_to_inum(obj, 10, FALSE); + *subsecx = INT2FIX(0); + } + else { + divmodv(num_exact(obj), INT2FIX(1), &obj, &subsec); + *subsecx = w2v(rb_time_magnify(v2w(subsec))); + } + return obj2ubits(obj, 6); /* vtm->sec */ +} + +static long +usec2subsecx(VALUE obj) +{ + if (RB_TYPE_P(obj, T_STRING)) { + obj = rb_str_to_inum(obj, 10, FALSE); + } + + return mulquo(num_exact(obj), INT2FIX(TIME_SCALE), INT2FIX(1000000)); +} + +static uint32_t +month_arg(VALUE arg) +{ + int i, mon; + + VALUE s = rb_check_string_type(arg); + if (!NIL_P(s) && RSTRING_LEN(s) > 0) { + mon = 0; + for (i=0; i<12; i++) { + if (RSTRING_LEN(s) == 3 && + STRNCASECMP(months[i], RSTRING_PTR(s), 3) == 0) { + mon = i+1; + break; + } + } + if (mon == 0) { + char c = RSTRING_PTR(s)[0]; + + if ('0' <= c && c <= '9') { + mon = obj2ubits(s, 4); + } + } + } + else { + mon = obj2ubits(arg, 4); + } + return mon; +} + +static VALUE +validate_utc_offset(VALUE utc_offset) +{ + if (le(utc_offset, INT2FIX(-86400)) || ge(utc_offset, INT2FIX(86400))) + rb_raise(rb_eArgError, "utc_offset out of range"); + return utc_offset; +} + +static VALUE +validate_zone_name(VALUE zone_name) +{ + StringValueCStr(zone_name); + return zone_name; +} + +static void +validate_vtm(struct vtm *vtm) +{ + if ( vtm->mon < 1 || vtm->mon > 12 + || vtm->mday < 1 || vtm->mday > 31 + || vtm->hour < 0 || vtm->hour > 24 + || (vtm->hour == 24 && (vtm->min > 0 || vtm->sec > 0)) + || vtm->min < 0 || vtm->min > 59 + || vtm->sec < 0 || vtm->sec > 60 + || lt(vtm->subsecx, INT2FIX(0)) || ge(vtm->subsecx, INT2FIX(TIME_SCALE)) + || (!NIL_P(vtm->utc_offset) && (validate_utc_offset(vtm->utc_offset), 0))) + rb_raise(rb_eArgError, "argument out of range"); +} + +static void +time_arg(int argc, VALUE *argv, struct vtm *vtm) +{ + VALUE v[8]; + + vtm->year = INT2FIX(0); + vtm->mon = 0; + vtm->mday = 0; + vtm->hour = 0; + vtm->min = 0; + vtm->sec = 0; + vtm->subsecx = INT2FIX(0); + vtm->utc_offset = Qnil; + vtm->wday = 0; + vtm->yday = 0; + vtm->isdst = 0; + vtm->zone = ""; + + if (argc == 10) { + v[0] = argv[5]; + v[1] = argv[4]; + v[2] = argv[3]; + v[3] = argv[2]; + v[4] = argv[1]; + v[5] = argv[0]; + v[6] = Qnil; + vtm->isdst = RTEST(argv[8]) ? 1 : 0; + } + else { + rb_scan_args(argc, argv, "17", &v[0],&v[1],&v[2],&v[3],&v[4],&v[5],&v[6],&v[7]); + /* v[6] may be usec or zone (parsedate) */ + /* v[7] is wday (parsedate; ignored) */ + vtm->wday = VTM_WDAY_INITVAL; + vtm->isdst = VTM_ISDST_INITVAL; + } + + vtm->year = obj2vint(v[0]); + + if (NIL_P(v[1])) { + vtm->mon = 1; + } + else { + vtm->mon = month_arg(v[1]); + } + + if (NIL_P(v[2])) { + vtm->mday = 1; + } + else { + vtm->mday = obj2ubits(v[2], 5); + } + + vtm->hour = NIL_P(v[3])?0:obj2ubits(v[3], 5); + + vtm->min = NIL_P(v[4])?0:obj2ubits(v[4], 6); + + if (!NIL_P(v[6]) && argc == 7) { + vtm->sec = NIL_P(v[5])?0:obj2ubits(v[5],6); + vtm->subsecx = usec2subsecx(v[6]); + } + else { + /* when argc == 8, v[6] is timezone, but ignored */ + vtm->sec = NIL_P(v[5])?0:obj2subsecx(v[5], &vtm->subsecx); + } + + validate_vtm(vtm); +} + +static int +leap_year_p(long y) +{ + return ((y % 4 == 0) && (y % 100 != 0)) || (y % 400 == 0); +} + +static time_t +timegm_noleapsecond(struct tm *tm) +{ + long tm_year = tm->tm_year; + int tm_yday = tm->tm_mday; + if (leap_year_p(tm_year + 1900)) + tm_yday += leap_year_yday_offset[tm->tm_mon]; + else + tm_yday += common_year_yday_offset[tm->tm_mon]; + + /* + * `Seconds Since the Epoch' in SUSv3: + * tm_sec + tm_min*60 + tm_hour*3600 + tm_yday*86400 + + * (tm_year-70)*31536000 + ((tm_year-69)/4)*86400 - + * ((tm_year-1)/100)*86400 + ((tm_year+299)/400)*86400 + */ + return tm->tm_sec + tm->tm_min*60 + tm->tm_hour*3600 + + (time_t)(tm_yday + + (tm_year-70)*365 + + DIV(tm_year-69,4) - + DIV(tm_year-1,100) + + DIV(tm_year+299,400))*86400; +} + +#if 0 +#define DEBUG_FIND_TIME_NUMGUESS +#define DEBUG_GUESSRANGE +#endif + +#ifdef DEBUG_GUESSRANGE +#define DEBUG_REPORT_GUESSRANGE fprintf(stderr, "find time guess range: %ld - %ld : %"PRI_TIMET_PREFIX"u\n", guess_lo, guess_hi, (unsigned_time_t)(guess_hi-guess_lo)) +#else +#define DEBUG_REPORT_GUESSRANGE +#endif + +#ifdef DEBUG_FIND_TIME_NUMGUESS +#define DEBUG_FIND_TIME_NUMGUESS_INC find_time_numguess++, +static unsigned long long find_time_numguess; + +static VALUE find_time_numguess_getter(void) +{ + return ULL2NUM(find_time_numguess); +} +#else +#define DEBUG_FIND_TIME_NUMGUESS_INC +#endif + +static const char * +find_time_t(struct tm *tptr, int utc_p, time_t *tp) +{ + time_t guess, guess0, guess_lo, guess_hi; + struct tm *tm, tm0, tm_lo, tm_hi; + int d; + int find_dst; + struct tm result; + int status; + int tptr_tm_yday; + +#define GUESS(p) (DEBUG_FIND_TIME_NUMGUESS_INC (utc_p ? gmtime_with_leapsecond((p), &result) : LOCALTIME((p), result))) + + guess_lo = TIMET_MIN; + guess_hi = TIMET_MAX; + + find_dst = 0 < tptr->tm_isdst; + +#if defined(HAVE_MKTIME) + tm0 = *tptr; + if (!utc_p && (guess = mktime(&tm0)) != -1) { + tm = GUESS(&guess); + if (tm && tmcmp(tptr, tm) == 0) { + goto found; + } + } +#endif + + tm0 = *tptr; + if (tm0.tm_mon < 0) { + tm0.tm_mon = 0; + tm0.tm_mday = 1; + tm0.tm_hour = 0; + tm0.tm_min = 0; + tm0.tm_sec = 0; + } + else if (11 < tm0.tm_mon) { + tm0.tm_mon = 11; + tm0.tm_mday = 31; + tm0.tm_hour = 23; + tm0.tm_min = 59; + tm0.tm_sec = 60; + } + else if (tm0.tm_mday < 1) { + tm0.tm_mday = 1; + tm0.tm_hour = 0; + tm0.tm_min = 0; + tm0.tm_sec = 0; + } + else if ((d = (leap_year_p(1900 + tm0.tm_year) ? + leap_year_days_in_month : + common_year_days_in_month)[tm0.tm_mon]) < tm0.tm_mday) { + tm0.tm_mday = d; + tm0.tm_hour = 23; + tm0.tm_min = 59; + tm0.tm_sec = 60; + } + else if (tm0.tm_hour < 0) { + tm0.tm_hour = 0; + tm0.tm_min = 0; + tm0.tm_sec = 0; + } + else if (23 < tm0.tm_hour) { + tm0.tm_hour = 23; + tm0.tm_min = 59; + tm0.tm_sec = 60; + } + else if (tm0.tm_min < 0) { + tm0.tm_min = 0; + tm0.tm_sec = 0; + } + else if (59 < tm0.tm_min) { + tm0.tm_min = 59; + tm0.tm_sec = 60; + } + else if (tm0.tm_sec < 0) { + tm0.tm_sec = 0; + } + else if (60 < tm0.tm_sec) { + tm0.tm_sec = 60; + } + + DEBUG_REPORT_GUESSRANGE; + guess0 = guess = timegm_noleapsecond(&tm0); + tm = GUESS(&guess); + if (tm) { + d = tmcmp(tptr, tm); + if (d == 0) { goto found; } + if (d < 0) { + guess_hi = guess; + guess -= 24 * 60 * 60; + } + else { + guess_lo = guess; + guess += 24 * 60 * 60; + } + DEBUG_REPORT_GUESSRANGE; + if (guess_lo < guess && guess < guess_hi && (tm = GUESS(&guess)) != NULL) { + d = tmcmp(tptr, tm); + if (d == 0) { goto found; } + if (d < 0) + guess_hi = guess; + else + guess_lo = guess; + DEBUG_REPORT_GUESSRANGE; + } + } + + tm = GUESS(&guess_lo); + if (!tm) goto error; + d = tmcmp(tptr, tm); + if (d < 0) goto out_of_range; + if (d == 0) { guess = guess_lo; goto found; } + tm_lo = *tm; + + tm = GUESS(&guess_hi); + if (!tm) goto error; + d = tmcmp(tptr, tm); + if (d > 0) goto out_of_range; + if (d == 0) { guess = guess_hi; goto found; } + tm_hi = *tm; + + DEBUG_REPORT_GUESSRANGE; + + status = 1; + + while (guess_lo + 1 < guess_hi) { + if (status == 0) { + binsearch: + guess = guess_lo / 2 + guess_hi / 2; + if (guess <= guess_lo) + guess = guess_lo + 1; + else if (guess >= guess_hi) + guess = guess_hi - 1; + status = 1; + } + else { + if (status == 1) { + time_t guess0_hi = timegm_noleapsecond(&tm_hi); + guess = guess_hi - (guess0_hi - guess0); + if (guess == guess_hi) /* hh:mm:60 tends to cause this condition. */ + guess--; + status = 2; + } + else if (status == 2) { + time_t guess0_lo = timegm_noleapsecond(&tm_lo); + guess = guess_lo + (guess0 - guess0_lo); + if (guess == guess_lo) + guess++; + status = 0; + } + if (guess <= guess_lo || guess_hi <= guess) { + /* Precious guess is invalid. try binary search. */ +#ifdef DEBUG_GUESSRANGE + if (guess <= guess_lo) fprintf(stderr, "too small guess: %ld <= %ld\n", guess, guess_lo); + if (guess_hi <= guess) fprintf(stderr, "too big guess: %ld <= %ld\n", guess_hi, guess); +#endif + goto binsearch; + } + } + + tm = GUESS(&guess); + if (!tm) goto error; + + d = tmcmp(tptr, tm); + + if (d < 0) { + guess_hi = guess; + tm_hi = *tm; + DEBUG_REPORT_GUESSRANGE; + } + else if (d > 0) { + guess_lo = guess; + tm_lo = *tm; + DEBUG_REPORT_GUESSRANGE; + } + else { + found: + if (!utc_p) { + /* If localtime is nonmonotonic, another result may exist. */ + time_t guess2; + if (find_dst) { + guess2 = guess - 2 * 60 * 60; + tm = LOCALTIME(&guess2, result); + if (tm) { + if (tptr->tm_hour != (tm->tm_hour + 2) % 24 || + tptr->tm_min != tm->tm_min || + tptr->tm_sec != tm->tm_sec) { + guess2 -= (tm->tm_hour - tptr->tm_hour) * 60 * 60 + + (tm->tm_min - tptr->tm_min) * 60 + + (tm->tm_sec - tptr->tm_sec); + if (tptr->tm_mday != tm->tm_mday) + guess2 += 24 * 60 * 60; + if (guess != guess2) { + tm = LOCALTIME(&guess2, result); + if (tm && tmcmp(tptr, tm) == 0) { + if (guess < guess2) + *tp = guess; + else + *tp = guess2; + return NULL; + } + } + } + } + } + else { + guess2 = guess + 2 * 60 * 60; + tm = LOCALTIME(&guess2, result); + if (tm) { + if ((tptr->tm_hour + 2) % 24 != tm->tm_hour || + tptr->tm_min != tm->tm_min || + tptr->tm_sec != tm->tm_sec) { + guess2 -= (tm->tm_hour - tptr->tm_hour) * 60 * 60 + + (tm->tm_min - tptr->tm_min) * 60 + + (tm->tm_sec - tptr->tm_sec); + if (tptr->tm_mday != tm->tm_mday) + guess2 -= 24 * 60 * 60; + if (guess != guess2) { + tm = LOCALTIME(&guess2, result); + if (tm && tmcmp(tptr, tm) == 0) { + if (guess < guess2) + *tp = guess2; + else + *tp = guess; + return NULL; + } + } + } + } + } + } + *tp = guess; + return NULL; + } + } + + /* Given argument has no corresponding time_t. Let's extrapolate. */ + /* + * `Seconds Since the Epoch' in SUSv3: + * tm_sec + tm_min*60 + tm_hour*3600 + tm_yday*86400 + + * (tm_year-70)*31536000 + ((tm_year-69)/4)*86400 - + * ((tm_year-1)/100)*86400 + ((tm_year+299)/400)*86400 + */ + + tptr_tm_yday = calc_tm_yday(tptr->tm_year, tptr->tm_mon, tptr->tm_mday); + + *tp = guess_lo + + ((tptr->tm_year - tm_lo.tm_year) * 365 + + ((tptr->tm_year-69)/4) - + ((tptr->tm_year-1)/100) + + ((tptr->tm_year+299)/400) - + ((tm_lo.tm_year-69)/4) + + ((tm_lo.tm_year-1)/100) - + ((tm_lo.tm_year+299)/400) + + tptr_tm_yday - + tm_lo.tm_yday) * 86400 + + (tptr->tm_hour - tm_lo.tm_hour) * 3600 + + (tptr->tm_min - tm_lo.tm_min) * 60 + + (tptr->tm_sec - (tm_lo.tm_sec == 60 ? 59 : tm_lo.tm_sec)); + + return NULL; + + out_of_range: + return "time out of range"; + + error: + return "gmtime/localtime error"; +} + +static int +vtmcmp(struct vtm *a, struct vtm *b) +{ + if (ne(a->year, b->year)) + return lt(a->year, b->year) ? -1 : 1; + else if (a->mon != b->mon) + return a->mon < b->mon ? -1 : 1; + else if (a->mday != b->mday) + return a->mday < b->mday ? -1 : 1; + else if (a->hour != b->hour) + return a->hour < b->hour ? -1 : 1; + else if (a->min != b->min) + return a->min < b->min ? -1 : 1; + else if (a->sec != b->sec) + return a->sec < b->sec ? -1 : 1; + else if (ne(a->subsecx, b->subsecx)) + return lt(a->subsecx, b->subsecx) ? -1 : 1; + else + return 0; +} + +static int +tmcmp(struct tm *a, struct tm *b) +{ + if (a->tm_year != b->tm_year) + return a->tm_year < b->tm_year ? -1 : 1; + else if (a->tm_mon != b->tm_mon) + return a->tm_mon < b->tm_mon ? -1 : 1; + else if (a->tm_mday != b->tm_mday) + return a->tm_mday < b->tm_mday ? -1 : 1; + else if (a->tm_hour != b->tm_hour) + return a->tm_hour < b->tm_hour ? -1 : 1; + else if (a->tm_min != b->tm_min) + return a->tm_min < b->tm_min ? -1 : 1; + else if (a->tm_sec != b->tm_sec) + return a->tm_sec < b->tm_sec ? -1 : 1; + else + return 0; +} + +static VALUE +time_utc_or_local(int argc, VALUE *argv, int utc_p, VALUE klass) +{ + struct vtm vtm; + VALUE time; + + time_arg(argc, argv, &vtm); + if (utc_p) + time = time_new_timew(klass, timegmw(&vtm)); + else + time = time_new_timew(klass, timelocalw(&vtm)); + if (utc_p) return time_gmtime(time); + return time_localtime(time); +} + +/* + * call-seq: + * Time.utc(year) -> time + * Time.utc(year, month) -> time + * Time.utc(year, month, day) -> time + * Time.utc(year, month, day, hour) -> time + * Time.utc(year, month, day, hour, min) -> time + * Time.utc(year, month, day, hour, min, sec_with_frac) -> time + * Time.utc(year, month, day, hour, min, sec, usec_with_frac) -> time + * Time.utc(sec, min, hour, day, month, year, dummy, dummy, dummy, dummy) -> time + * Time.gm(year) -> time + * Time.gm(year, month) -> time + * Time.gm(year, month, day) -> time + * Time.gm(year, month, day, hour) -> time + * Time.gm(year, month, day, hour, min) -> time + * Time.gm(year, month, day, hour, min, sec_with_frac) -> time + * Time.gm(year, month, day, hour, min, sec, usec_with_frac) -> time + * Time.gm(sec, min, hour, day, month, year, dummy, dummy, dummy, dummy) -> time + * + * Creates a Time object based on given values, interpreted as UTC (GMT). The + * year must be specified. Other values default to the minimum value + * for that field (and may be +nil+ or omitted). Months may + * be specified by numbers from 1 to 12, or by the three-letter English + * month names. Hours are specified on a 24-hour clock (0..23). Raises + * an ArgumentError if any values are out of range. Will + * also accept ten arguments in the order output by Time#to_a. + * + * +sec_with_frac+ and +usec_with_frac+ can have a fractional part. + * + * Time.utc(2000,"jan",1,20,15,1) #=> 2000-01-01 20:15:01 UTC + * Time.gm(2000,"jan",1,20,15,1) #=> 2000-01-01 20:15:01 UTC + */ +static VALUE +time_s_mkutc(int argc, VALUE *argv, VALUE klass) +{ + return time_utc_or_local(argc, argv, TRUE, klass); +} + +/* + * call-seq: + * Time.local(year) -> time + * Time.local(year, month) -> time + * Time.local(year, month, day) -> time + * Time.local(year, month, day, hour) -> time + * Time.local(year, month, day, hour, min) -> time + * Time.local(year, month, day, hour, min, sec_with_frac) -> time + * Time.local(year, month, day, hour, min, sec, usec_with_frac) -> time + * Time.local(sec, min, hour, day, month, year, dummy, dummy, isdst, dummy) -> time + * Time.mktime(year) -> time + * Time.mktime(year, month) -> time + * Time.mktime(year, month, day) -> time + * Time.mktime(year, month, day, hour) -> time + * Time.mktime(year, month, day, hour, min) -> time + * Time.mktime(year, month, day, hour, min, sec_with_frac) -> time + * Time.mktime(year, month, day, hour, min, sec, usec_with_frac) -> time + * Time.mktime(sec, min, hour, day, month, year, dummy, dummy, isdst, dummy) -> time + * + * Same as Time::gm, but interprets the values in the + * local time zone. + * + * Time.local(2000,"jan",1,20,15,1) #=> 2000-01-01 20:15:01 -0600 + */ + +static VALUE +time_s_mktime(int argc, VALUE *argv, VALUE klass) +{ + return time_utc_or_local(argc, argv, FALSE, klass); +} + +/* + * call-seq: + * time.to_i -> int + * time.tv_sec -> int + * + * Returns the value of _time_ as an integer number of seconds + * since the Epoch. + * + * t = Time.now + * "%10.5f" % t.to_f #=> "1270968656.89607" + * t.to_i #=> 1270968656 + */ + +static VALUE +time_to_i(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + return w2v(wdiv(tobj->timew, WINT2FIXWV(TIME_SCALE))); +} + +/* + * call-seq: + * time.to_f -> float + * + * Returns the value of _time_ as a floating point number of + * seconds since the Epoch. + * + * t = Time.now + * "%10.5f" % t.to_f #=> "1270968744.77658" + * t.to_i #=> 1270968744 + * + * Note that IEEE 754 double is not accurate enough to represent + * the number of nanoseconds since the Epoch. + */ + +static VALUE +time_to_f(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + return rb_Float(rb_time_unmagnify_to_float(tobj->timew)); +} + +/* + * call-seq: + * time.to_r -> a_rational + * + * Returns the value of _time_ as a rational number of seconds + * since the Epoch. + * + * t = Time.now + * p t.to_r #=> (1270968792716287611/1000000000) + * + * This methods is intended to be used to get an accurate value + * representing the nanoseconds since the Epoch. You can use this method + * to convert _time_ to another Epoch. + */ + +static VALUE +time_to_r(VALUE time) +{ + struct time_object *tobj; + VALUE v; + + GetTimeval(time, tobj); + v = w2v(rb_time_unmagnify(tobj->timew)); + if (!RB_TYPE_P(v, T_RATIONAL)) { + v = rb_Rational1(v); + } + return v; +} + +/* + * call-seq: + * time.usec -> int + * time.tv_usec -> int + * + * Returns the number of microseconds for _time_. + * + * t = Time.now #=> 2007-11-19 08:03:26 -0600 + * "%10.6f" % t.to_f #=> "1195481006.775195" + * t.usec #=> 775195 + */ + +static VALUE +time_usec(VALUE time) +{ + struct time_object *tobj; + wideval_t w, q, r; + + GetTimeval(time, tobj); + + w = wmod(tobj->timew, WINT2WV(TIME_SCALE)); + wmuldivmod(w, WINT2FIXWV(1000000), WINT2FIXWV(TIME_SCALE), &q, &r); + return rb_to_int(w2v(q)); +} + +/* + * call-seq: + * time.nsec -> int + * time.tv_nsec -> int + * + * Returns the number of nanoseconds for _time_. + * + * t = Time.now #=> 2007-11-17 15:18:03 +0900 + * "%10.9f" % t.to_f #=> "1195280283.536151409" + * t.nsec #=> 536151406 + * + * The lowest digits of #to_f and #nsec are different because + * IEEE 754 double is not accurate enough to represent + * the exact number of nanoseconds since the Epoch. + * + * The more accurate value is returned by #nsec. + */ + +static VALUE +time_nsec(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + return rb_to_int(w2v(wmulquoll(wmod(tobj->timew, WINT2WV(TIME_SCALE)), 1000000000, TIME_SCALE))); +} + +/* + * call-seq: + * time.subsec -> number + * + * Returns the fraction for _time_. + * + * The return value can be a rational number. + * + * t = Time.now #=> 2009-03-26 22:33:12 +0900 + * "%10.9f" % t.to_f #=> "1238074392.940563917" + * t.subsec #=> (94056401/100000000) + * + * The lowest digits of #to_f and #subsec are different because + * IEEE 754 double is not accurate enough to represent + * the rational number. + * + * The more accurate value is returned by #subsec. + */ + +static VALUE +time_subsec(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + return quo(w2v(wmod(tobj->timew, WINT2FIXWV(TIME_SCALE))), INT2FIX(TIME_SCALE)); +} + +/* + * call-seq: + * time <=> other_time -> -1, 0, +1 or nil + * + * Comparison---Compares +time+ with +other_time+. + * + * -1, 0, +1 or nil depending on whether +time+ is less than, equal to, or + * greater than +other_time+. + * + * +nil+ is returned if the two values are incomparable. + * + * t = Time.now #=> 2007-11-19 08:12:12 -0600 + * t2 = t + 2592000 #=> 2007-12-19 08:12:12 -0600 + * t <=> t2 #=> -1 + * t2 <=> t #=> 1 + * + * t = Time.now #=> 2007-11-19 08:13:38 -0600 + * t2 = t + 0.1 #=> 2007-11-19 08:13:38 -0600 + * t.nsec #=> 98222999 + * t2.nsec #=> 198222999 + * t <=> t2 #=> -1 + * t2 <=> t #=> 1 + * t <=> t #=> 0 + */ + +static VALUE +time_cmp(VALUE time1, VALUE time2) +{ + struct time_object *tobj1, *tobj2; + int n; + + GetTimeval(time1, tobj1); + if (IsTimeval(time2)) { + GetTimeval(time2, tobj2); + n = wcmp(tobj1->timew, tobj2->timew); + } + else { + return rb_invcmp(time1, time2); + } + if (n == 0) return INT2FIX(0); + if (n > 0) return INT2FIX(1); + return INT2FIX(-1); +} + +/* + * call-seq: + * time.eql?(other_time) + * + * Returns +true+ if _time_ and +other_time+ are + * both Time objects with the same seconds and fractional seconds. + */ + +static VALUE +time_eql(VALUE time1, VALUE time2) +{ + struct time_object *tobj1, *tobj2; + + GetTimeval(time1, tobj1); + if (IsTimeval(time2)) { + GetTimeval(time2, tobj2); + return rb_equal(w2v(tobj1->timew), w2v(tobj2->timew)); + } + return Qfalse; +} + +/* + * call-seq: + * time.utc? -> true or false + * time.gmt? -> true or false + * + * Returns +true+ if _time_ represents a time in UTC (GMT). + * + * t = Time.now #=> 2007-11-19 08:15:23 -0600 + * t.utc? #=> false + * t = Time.gm(2000,"jan",1,20,15,1) #=> 2000-01-01 20:15:01 UTC + * t.utc? #=> true + * + * t = Time.now #=> 2007-11-19 08:16:03 -0600 + * t.gmt? #=> false + * t = Time.gm(2000,1,1,20,15,1) #=> 2000-01-01 20:15:01 UTC + * t.gmt? #=> true + */ + +static VALUE +time_utc_p(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + if (TIME_UTC_P(tobj)) return Qtrue; + return Qfalse; +} + +/* + * call-seq: + * time.hash -> fixnum + * + * Returns a hash code for this Time object. + * + * See also Object#hash. + */ + +static VALUE +time_hash(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + return rb_hash(w2v(tobj->timew)); +} + +/* :nodoc: */ +static VALUE +time_init_copy(VALUE copy, VALUE time) +{ + struct time_object *tobj, *tcopy; + + if (!OBJ_INIT_COPY(copy, time)) return copy; + GetTimeval(time, tobj); + GetNewTimeval(copy, tcopy); + MEMCPY(tcopy, tobj, struct time_object, 1); + + return copy; +} + +static VALUE +time_dup(VALUE time) +{ + VALUE dup = time_s_alloc(rb_obj_class(time)); + time_init_copy(dup, time); + return dup; +} + +static VALUE +time_localtime(VALUE time) +{ + struct time_object *tobj; + struct vtm vtm; + + GetTimeval(time, tobj); + if (TIME_LOCALTIME_P(tobj)) { + if (tobj->tm_got) + return time; + } + else { + time_modify(time); + } + + if (!localtimew(tobj->timew, &vtm)) + rb_raise(rb_eArgError, "localtime error"); + tobj->vtm = vtm; + + tobj->tm_got = 1; + TIME_SET_LOCALTIME(tobj); + return time; +} + +/* + * call-seq: + * time.localtime -> time + * time.localtime(utc_offset) -> time + * + * Converts _time_ to local time (using the local time zone in + * effect for this process) modifying the receiver. + * + * If +utc_offset+ is given, it is used instead of the local time. + * + * t = Time.utc(2000, "jan", 1, 20, 15, 1) #=> 2000-01-01 20:15:01 UTC + * t.utc? #=> true + * + * t.localtime #=> 2000-01-01 14:15:01 -0600 + * t.utc? #=> false + * + * t.localtime("+09:00") #=> 2000-01-02 05:15:01 +0900 + * t.utc? #=> false + */ + +static VALUE +time_localtime_m(int argc, VALUE *argv, VALUE time) +{ + VALUE off; + rb_scan_args(argc, argv, "01", &off); + + if (!NIL_P(off)) { + off = utc_offset_arg(off); + validate_utc_offset(off); + + time_set_utc_offset(time, off); + return time_fixoff(time); + } + + return time_localtime(time); +} + +/* + * call-seq: + * time.gmtime -> time + * time.utc -> time + * + * Converts _time_ to UTC (GMT), modifying the receiver. + * + * t = Time.now #=> 2007-11-19 08:18:31 -0600 + * t.gmt? #=> false + * t.gmtime #=> 2007-11-19 14:18:31 UTC + * t.gmt? #=> true + * + * t = Time.now #=> 2007-11-19 08:18:51 -0600 + * t.utc? #=> false + * t.utc #=> 2007-11-19 14:18:51 UTC + * t.utc? #=> true + */ + +static VALUE +time_gmtime(VALUE time) +{ + struct time_object *tobj; + struct vtm vtm; + + GetTimeval(time, tobj); + if (TIME_UTC_P(tobj)) { + if (tobj->tm_got) + return time; + } + else { + time_modify(time); + } + + if (!gmtimew(tobj->timew, &vtm)) + rb_raise(rb_eArgError, "gmtime error"); + tobj->vtm = vtm; + + tobj->tm_got = 1; + TIME_SET_UTC(tobj); + return time; +} + +static VALUE +time_fixoff(VALUE time) +{ + struct time_object *tobj; + struct vtm vtm; + VALUE off; + + GetTimeval(time, tobj); + if (TIME_FIXOFF_P(tobj)) { + if (tobj->tm_got) + return time; + } + else { + time_modify(time); + } + + if (TIME_FIXOFF_P(tobj)) + off = tobj->vtm.utc_offset; + else + off = INT2FIX(0); + + if (!gmtimew(tobj->timew, &vtm)) + rb_raise(rb_eArgError, "gmtime error"); + + tobj->vtm = vtm; + vtm_add_offset(&tobj->vtm, off); + + tobj->tm_got = 1; + TIME_SET_FIXOFF(tobj, off); + return time; +} + +/* + * call-seq: + * time.getlocal -> new_time + * time.getlocal(utc_offset) -> new_time + * + * Returns a new Time object representing _time_ in + * local time (using the local time zone in effect for this process). + * + * If +utc_offset+ is given, it is used instead of the local time. + * + * t = Time.utc(2000,1,1,20,15,1) #=> 2000-01-01 20:15:01 UTC + * t.utc? #=> true + * + * l = t.getlocal #=> 2000-01-01 14:15:01 -0600 + * l.utc? #=> false + * t == l #=> true + * + * j = t.getlocal("+09:00") #=> 2000-01-02 05:15:01 +0900 + * j.utc? #=> false + * t == j #=> true + */ + +static VALUE +time_getlocaltime(int argc, VALUE *argv, VALUE time) +{ + VALUE off; + rb_scan_args(argc, argv, "01", &off); + + if (!NIL_P(off)) { + off = utc_offset_arg(off); + validate_utc_offset(off); + + time = time_dup(time); + time_set_utc_offset(time, off); + return time_fixoff(time); + } + + return time_localtime(time_dup(time)); +} + +/* + * call-seq: + * time.getgm -> new_time + * time.getutc -> new_time + * + * Returns a new Time object representing _time_ in UTC. + * + * t = Time.local(2000,1,1,20,15,1) #=> 2000-01-01 20:15:01 -0600 + * t.gmt? #=> false + * y = t.getgm #=> 2000-01-02 02:15:01 UTC + * y.gmt? #=> true + * t == y #=> true + */ + +static VALUE +time_getgmtime(VALUE time) +{ + return time_gmtime(time_dup(time)); +} + +static VALUE +time_get_tm(VALUE time, struct time_object *tobj) +{ + if (TIME_UTC_P(tobj)) return time_gmtime(time); + if (TIME_FIXOFF_P(tobj)) return time_fixoff(time); + return time_localtime(time); +} + +static VALUE strftimev(const char *fmt, VALUE time, rb_encoding *enc); + +/* + * call-seq: + * time.asctime -> string + * time.ctime -> string + * + * Returns a canonical string representation of _time_. + * + * Time.now.asctime #=> "Wed Apr 9 08:56:03 2003" + */ + +static VALUE +time_asctime(VALUE time) +{ + return strftimev("%a %b %e %T %Y", time, rb_usascii_encoding()); +} + +/* + * call-seq: + * time.inspect -> string + * time.to_s -> string + * + * Returns a string representing _time_. Equivalent to calling + * #strftime with the appropriate format string. + * + * t = Time.now + * t.to_s => "2012-11-10 18:16:12 +0100" + * t.strftime "%Y-%m-%d %H:%M:%S %z" => "2012-11-10 18:16:12 +0100" + * + * t.utc.to_s => "2012-11-10 17:16:12 UTC" + * t.strftime "%Y-%m-%d %H:%M:%S UTC" => "2012-11-10 17:16:12 UTC" + */ + +static VALUE +time_to_s(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + if (TIME_UTC_P(tobj)) + return strftimev("%Y-%m-%d %H:%M:%S UTC", time, rb_usascii_encoding()); + else + return strftimev("%Y-%m-%d %H:%M:%S %z", time, rb_usascii_encoding()); +} + +static VALUE +time_add(struct time_object *tobj, VALUE offset, int sign) +{ + VALUE result; + offset = num_exact(offset); + if (sign < 0) + result = time_new_timew(rb_cTime, wsub(tobj->timew, rb_time_magnify(v2w(offset)))); + else + result = time_new_timew(rb_cTime, wadd(tobj->timew, rb_time_magnify(v2w(offset)))); + if (TIME_UTC_P(tobj)) { + GetTimeval(result, tobj); + TIME_SET_UTC(tobj); + } + else if (TIME_FIXOFF_P(tobj)) { + VALUE off = tobj->vtm.utc_offset; + GetTimeval(result, tobj); + TIME_SET_FIXOFF(tobj, off); + } + return result; +} + +/* + * call-seq: + * time + numeric -> time + * + * Addition --- Adds some number of seconds (possibly fractional) to + * _time_ and returns that value as a new Time object. + * + * t = Time.now #=> 2007-11-19 08:22:21 -0600 + * t + (60 * 60 * 24) #=> 2007-11-20 08:22:21 -0600 + */ + +static VALUE +time_plus(VALUE time1, VALUE time2) +{ + struct time_object *tobj; + GetTimeval(time1, tobj); + + if (IsTimeval(time2)) { + rb_raise(rb_eTypeError, "time + time?"); + } + return time_add(tobj, time2, 1); +} + +/* + * call-seq: + * time - other_time -> float + * time - numeric -> time + * + * Difference --- Returns a new Time object that represents the difference + * between _time_ and +other_time+, or subtracts the given number + * of seconds in +numeric+ from _time_. + * + * t = Time.now #=> 2007-11-19 08:23:10 -0600 + * t2 = t + 2592000 #=> 2007-12-19 08:23:10 -0600 + * t2 - t #=> 2592000.0 + * t2 - 2592000 #=> 2007-11-19 08:23:10 -0600 + */ + +static VALUE +time_minus(VALUE time1, VALUE time2) +{ + struct time_object *tobj; + + GetTimeval(time1, tobj); + if (IsTimeval(time2)) { + struct time_object *tobj2; + + GetTimeval(time2, tobj2); + return rb_Float(rb_time_unmagnify_to_float(wsub(tobj->timew, tobj2->timew))); + } + return time_add(tobj, time2, -1); +} + +/* + * call-seq: + * time.succ -> new_time + * + * Returns a new Time object, one second later than _time_. + * Time#succ is obsolete since 1.9.2 for time is not a discrete value. + * + * t = Time.now #=> 2007-11-19 08:23:57 -0600 + * t.succ #=> 2007-11-19 08:23:58 -0600 + * + * Use instead <code>time + 1</code> + * + * t + 1 #=> 2007-11-19 08:23:58 -0600 + */ + +VALUE +rb_time_succ(VALUE time) +{ + struct time_object *tobj; + struct time_object *tobj2; + + rb_warn("Time#succ is obsolete; use time + 1"); + GetTimeval(time, tobj); + time = time_new_timew(rb_cTime, wadd(tobj->timew, WINT2FIXWV(TIME_SCALE))); + GetTimeval(time, tobj2); + TIME_COPY_GMT(tobj2, tobj); + return time; +} + +#define time_succ rb_time_succ + +/* + * call-seq: + * time.round([ndigits]) -> new_time + * + * Rounds sub seconds to a given precision in decimal digits (0 digits by default). + * It returns a new Time object. + * +ndigits+ should be zero or positive integer. + * + * require 'time' + * + * t = Time.utc(2010,3,30, 5,43,"25.123456789".to_r) + * p t.iso8601(10) #=> "2010-03-30T05:43:25.1234567890Z" + * p t.round.iso8601(10) #=> "2010-03-30T05:43:25.0000000000Z" + * p t.round(0).iso8601(10) #=> "2010-03-30T05:43:25.0000000000Z" + * p t.round(1).iso8601(10) #=> "2010-03-30T05:43:25.1000000000Z" + * p t.round(2).iso8601(10) #=> "2010-03-30T05:43:25.1200000000Z" + * p t.round(3).iso8601(10) #=> "2010-03-30T05:43:25.1230000000Z" + * p t.round(4).iso8601(10) #=> "2010-03-30T05:43:25.1235000000Z" + * p t.round(5).iso8601(10) #=> "2010-03-30T05:43:25.1234600000Z" + * p t.round(6).iso8601(10) #=> "2010-03-30T05:43:25.1234570000Z" + * p t.round(7).iso8601(10) #=> "2010-03-30T05:43:25.1234568000Z" + * p t.round(8).iso8601(10) #=> "2010-03-30T05:43:25.1234567900Z" + * p t.round(9).iso8601(10) #=> "2010-03-30T05:43:25.1234567890Z" + * p t.round(10).iso8601(10) #=> "2010-03-30T05:43:25.1234567890Z" + * + * t = Time.utc(1999,12,31, 23,59,59) + * p((t + 0.4).round.iso8601(3)) #=> "1999-12-31T23:59:59.000Z" + * p((t + 0.49).round.iso8601(3)) #=> "1999-12-31T23:59:59.000Z" + * p((t + 0.5).round.iso8601(3)) #=> "2000-01-01T00:00:00.000Z" + * p((t + 1.4).round.iso8601(3)) #=> "2000-01-01T00:00:00.000Z" + * p((t + 1.49).round.iso8601(3)) #=> "2000-01-01T00:00:00.000Z" + * p((t + 1.5).round.iso8601(3)) #=> "2000-01-01T00:00:01.000Z" + * + * t = Time.utc(1999,12,31, 23,59,59) + * p (t + 0.123456789).round(4).iso8601(6) #=> "1999-12-31T23:59:59.123500Z" + */ + +static VALUE +time_round(int argc, VALUE *argv, VALUE time) +{ + VALUE ndigits, v, a, b, den; + long nd; + struct time_object *tobj; + + rb_scan_args(argc, argv, "01", &ndigits); + + if (NIL_P(ndigits)) + ndigits = INT2FIX(0); + else + ndigits = rb_to_int(ndigits); + + nd = NUM2LONG(ndigits); + if (nd < 0) + rb_raise(rb_eArgError, "negative ndigits given"); + + GetTimeval(time, tobj); + v = w2v(rb_time_unmagnify(tobj->timew)); + + a = INT2FIX(1); + b = INT2FIX(10); + while (0 < nd) { + if (nd & 1) + a = mul(a, b); + b = mul(b, b); + nd = nd >> 1; + } + den = quo(INT2FIX(1), a); + v = mod(v, den); + if (lt(v, quo(den, INT2FIX(2)))) + return time_add(tobj, v, -1); + else + return time_add(tobj, sub(den, v), 1); +} + +/* + * call-seq: + * time.sec -> fixnum + * + * Returns the second of the minute (0..60) for _time_. + * + * *Note:* Seconds range from zero to 60 to allow the system to inject + * leap seconds. See http://en.wikipedia.org/wiki/Leap_second for further + * details. + * + * t = Time.now #=> 2007-11-19 08:25:02 -0600 + * t.sec #=> 2 + */ + +static VALUE +time_sec(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + return INT2FIX(tobj->vtm.sec); +} + +/* + * call-seq: + * time.min -> fixnum + * + * Returns the minute of the hour (0..59) for _time_. + * + * t = Time.now #=> 2007-11-19 08:25:51 -0600 + * t.min #=> 25 + */ + +static VALUE +time_min(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + return INT2FIX(tobj->vtm.min); +} + +/* + * call-seq: + * time.hour -> fixnum + * + * Returns the hour of the day (0..23) for _time_. + * + * t = Time.now #=> 2007-11-19 08:26:20 -0600 + * t.hour #=> 8 + */ + +static VALUE +time_hour(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + return INT2FIX(tobj->vtm.hour); +} + +/* + * call-seq: + * time.day -> fixnum + * time.mday -> fixnum + * + * Returns the day of the month (1..n) for _time_. + * + * t = Time.now #=> 2007-11-19 08:27:03 -0600 + * t.day #=> 19 + * t.mday #=> 19 + */ + +static VALUE +time_mday(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + return INT2FIX(tobj->vtm.mday); +} + +/* + * call-seq: + * time.mon -> fixnum + * time.month -> fixnum + * + * Returns the month of the year (1..12) for _time_. + * + * t = Time.now #=> 2007-11-19 08:27:30 -0600 + * t.mon #=> 11 + * t.month #=> 11 + */ + +static VALUE +time_mon(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + return INT2FIX(tobj->vtm.mon); +} + +/* + * call-seq: + * time.year -> fixnum + * + * Returns the year for _time_ (including the century). + * + * t = Time.now #=> 2007-11-19 08:27:51 -0600 + * t.year #=> 2007 + */ + +static VALUE +time_year(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + return tobj->vtm.year; +} + +/* + * call-seq: + * time.wday -> fixnum + * + * Returns an integer representing the day of the week, 0..6, with + * Sunday == 0. + * + * t = Time.now #=> 2007-11-20 02:35:35 -0600 + * t.wday #=> 2 + * t.sunday? #=> false + * t.monday? #=> false + * t.tuesday? #=> true + * t.wednesday? #=> false + * t.thursday? #=> false + * t.friday? #=> false + * t.saturday? #=> false + */ + +static VALUE +time_wday(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + return INT2FIX((int)tobj->vtm.wday); +} + +#define wday_p(n) {\ + struct time_object *tobj;\ + GetTimeval(time, tobj);\ + MAKE_TM(time, tobj);\ + return (tobj->vtm.wday == (n)) ? Qtrue : Qfalse;\ +} + +/* + * call-seq: + * time.sunday? -> true or false + * + * Returns +true+ if _time_ represents Sunday. + * + * t = Time.local(1990, 4, 1) #=> 1990-04-01 00:00:00 -0600 + * t.sunday? #=> true + */ + +static VALUE +time_sunday(VALUE time) +{ + wday_p(0); +} + +/* + * call-seq: + * time.monday? -> true or false + * + * Returns +true+ if _time_ represents Monday. + * + * t = Time.local(2003, 8, 4) #=> 2003-08-04 00:00:00 -0500 + * p t.monday? #=> true + */ + +static VALUE +time_monday(VALUE time) +{ + wday_p(1); +} + +/* + * call-seq: + * time.tuesday? -> true or false + * + * Returns +true+ if _time_ represents Tuesday. + * + * t = Time.local(1991, 2, 19) #=> 1991-02-19 00:00:00 -0600 + * p t.tuesday? #=> true + */ + +static VALUE +time_tuesday(VALUE time) +{ + wday_p(2); +} + +/* + * call-seq: + * time.wednesday? -> true or false + * + * Returns +true+ if _time_ represents Wednesday. + * + * t = Time.local(1993, 2, 24) #=> 1993-02-24 00:00:00 -0600 + * p t.wednesday? #=> true + */ + +static VALUE +time_wednesday(VALUE time) +{ + wday_p(3); +} + +/* + * call-seq: + * time.thursday? -> true or false + * + * Returns +true+ if _time_ represents Thursday. + * + * t = Time.local(1995, 12, 21) #=> 1995-12-21 00:00:00 -0600 + * p t.thursday? #=> true + */ + +static VALUE +time_thursday(VALUE time) +{ + wday_p(4); +} + +/* + * call-seq: + * time.friday? -> true or false + * + * Returns +true+ if _time_ represents Friday. + * + * t = Time.local(1987, 12, 18) #=> 1987-12-18 00:00:00 -0600 + * t.friday? #=> true + */ + +static VALUE +time_friday(VALUE time) +{ + wday_p(5); +} + +/* + * call-seq: + * time.saturday? -> true or false + * + * Returns +true+ if _time_ represents Saturday. + * + * t = Time.local(2006, 6, 10) #=> 2006-06-10 00:00:00 -0500 + * t.saturday? #=> true + */ + +static VALUE +time_saturday(VALUE time) +{ + wday_p(6); +} + +/* + * call-seq: + * time.yday -> fixnum + * + * Returns an integer representing the day of the year, 1..366. + * + * t = Time.now #=> 2007-11-19 08:32:31 -0600 + * t.yday #=> 323 + */ + +static VALUE +time_yday(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + return INT2FIX(tobj->vtm.yday); +} + +/* + * call-seq: + * time.isdst -> true or false + * time.dst? -> true or false + * + * Returns +true+ if _time_ occurs during Daylight + * Saving Time in its time zone. + * + * # CST6CDT: + * Time.local(2000, 1, 1).zone #=> "CST" + * Time.local(2000, 1, 1).isdst #=> false + * Time.local(2000, 1, 1).dst? #=> false + * Time.local(2000, 7, 1).zone #=> "CDT" + * Time.local(2000, 7, 1).isdst #=> true + * Time.local(2000, 7, 1).dst? #=> true + * + * # Asia/Tokyo: + * Time.local(2000, 1, 1).zone #=> "JST" + * Time.local(2000, 1, 1).isdst #=> false + * Time.local(2000, 1, 1).dst? #=> false + * Time.local(2000, 7, 1).zone #=> "JST" + * Time.local(2000, 7, 1).isdst #=> false + * Time.local(2000, 7, 1).dst? #=> false + */ + +static VALUE +time_isdst(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + return tobj->vtm.isdst ? Qtrue : Qfalse; +} + +static VALUE +time_zone_name(const char *zone) +{ + VALUE name = rb_str_new_cstr(zone); + if (!rb_enc_str_asciionly_p(name)) { + name = rb_external_str_with_enc(name, rb_locale_encoding()); + } + else { + rb_enc_associate(name, rb_usascii_encoding()); + } + return name; +} + +/* + * call-seq: + * time.zone -> string + * + * Returns the name of the time zone used for _time_. As of Ruby + * 1.8, returns ``UTC'' rather than ``GMT'' for UTC times. + * + * t = Time.gm(2000, "jan", 1, 20, 15, 1) + * t.zone #=> "UTC" + * t = Time.local(2000, "jan", 1, 20, 15, 1) + * t.zone #=> "CST" + */ + +static VALUE +time_zone(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + + if (TIME_UTC_P(tobj)) { + return rb_usascii_str_new_cstr("UTC"); + } + if (tobj->vtm.zone == NULL) + return Qnil; + + return time_zone_name(tobj->vtm.zone); +} + +/* + * call-seq: + * time.gmt_offset -> fixnum + * time.gmtoff -> fixnum + * time.utc_offset -> fixnum + * + * Returns the offset in seconds between the timezone of _time_ + * and UTC. + * + * t = Time.gm(2000,1,1,20,15,1) #=> 2000-01-01 20:15:01 UTC + * t.gmt_offset #=> 0 + * l = t.getlocal #=> 2000-01-01 14:15:01 -0600 + * l.gmt_offset #=> -21600 + */ + +static VALUE +time_utc_offset(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + + if (TIME_UTC_P(tobj)) { + return INT2FIX(0); + } + else { + return tobj->vtm.utc_offset; + } +} + +/* + * call-seq: + * time.to_a -> array + * + * Returns a ten-element _array_ of values for _time_: + * + * [sec, min, hour, day, month, year, wday, yday, isdst, zone] + * + * See the individual methods for an explanation of the + * valid ranges of each value. The ten elements can be passed directly + * to Time::utc or Time::local to create a + * new Time object. + * + * t = Time.now #=> 2007-11-19 08:36:01 -0600 + * now = t.to_a #=> [1, 36, 8, 19, 11, 2007, 1, 323, false, "CST"] + */ + +static VALUE +time_to_a(VALUE time) +{ + struct time_object *tobj; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + return rb_ary_new3(10, + INT2FIX(tobj->vtm.sec), + INT2FIX(tobj->vtm.min), + INT2FIX(tobj->vtm.hour), + INT2FIX(tobj->vtm.mday), + INT2FIX(tobj->vtm.mon), + tobj->vtm.year, + INT2FIX(tobj->vtm.wday), + INT2FIX(tobj->vtm.yday), + tobj->vtm.isdst?Qtrue:Qfalse, + time_zone(time)); +} + +#define SMALLBUF 100 +static size_t +rb_strftime_alloc(char **buf, VALUE formatv, const char *format, rb_encoding *enc, + struct vtm *vtm, wideval_t timew, int gmt) +{ + size_t size, len, flen; + VALUE timev = Qnil; + struct timespec ts; + + if (!timew2timespec_exact(timew, &ts)) + timev = w2v(rb_time_unmagnify(timew)); + + (*buf)[0] = '\0'; + flen = strlen(format); + if (flen == 0) { + return 0; + } + errno = 0; + if (timev == Qnil) + len = rb_strftime_timespec(*buf, SMALLBUF, format, enc, vtm, &ts, gmt); + else + len = rb_strftime(*buf, SMALLBUF, format, enc, vtm, timev, gmt); + if (len != 0 || (**buf == '\0' && errno != ERANGE)) return len; + for (size=1024; ; size*=2) { + *buf = xmalloc(size); + (*buf)[0] = '\0'; + if (timev == Qnil) + len = rb_strftime_timespec(*buf, size, format, enc, vtm, &ts, gmt); + else + len = rb_strftime(*buf, size, format, enc, vtm, timev, gmt); + /* + * buflen can be zero EITHER because there's not enough + * room in the string, or because the control command + * goes to the empty string. Make a reasonable guess that + * if the buffer is 1024 times bigger than the length of the + * format string, it's not failing for lack of room. + */ + if (len > 0) break; + xfree(*buf); + if (size >= 1024 * flen) { + if (!NIL_P(formatv)) rb_sys_fail_str(formatv); + rb_sys_fail(format); + break; + } + } + return len; +} + +static VALUE +strftimev(const char *fmt, VALUE time, rb_encoding *enc) +{ + struct time_object *tobj; + char buffer[SMALLBUF], *buf = buffer; + long len; + VALUE str; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + len = rb_strftime_alloc(&buf, Qnil, fmt, enc, &tobj->vtm, tobj->timew, TIME_UTC_P(tobj)); + str = rb_enc_str_new(buf, len, enc); + if (buf != buffer) xfree(buf); + return str; +} + +/* + * call-seq: + * time.strftime( string ) -> string + * + * Formats _time_ according to the directives in the given format string. + * + * The directives begin with a percent (%) character. + * Any text not listed as a directive will be passed through to the + * output string. + * + * The directive consists of a percent (%) character, + * zero or more flags, optional minimum field width, + * optional modifier and a conversion specifier + * as follows: + * + * %<flags><width><modifier><conversion> + * + * Flags: + * - don't pad a numerical output + * _ use spaces for padding + * 0 use zeros for padding + * ^ upcase the result string + * # change case + * : use colons for %z + * + * The minimum field width specifies the minimum width. + * + * The modifiers are "E" and "O". + * They are ignored. + * + * Format directives: + * + * Date (Year, Month, Day): + * %Y - Year with century if provided, will pad result at least 4 digits. + * -0001, 0000, 1995, 2009, 14292, etc. + * %C - year / 100 (rounded down such as 20 in 2009) + * %y - year % 100 (00..99) + * + * %m - Month of the year, zero-padded (01..12) + * %_m blank-padded ( 1..12) + * %-m no-padded (1..12) + * %B - The full month name (``January'') + * %^B uppercased (``JANUARY'') + * %b - The abbreviated month name (``Jan'') + * %^b uppercased (``JAN'') + * %h - Equivalent to %b + * + * %d - Day of the month, zero-padded (01..31) + * %-d no-padded (1..31) + * %e - Day of the month, blank-padded ( 1..31) + * + * %j - Day of the year (001..366) + * + * Time (Hour, Minute, Second, Subsecond): + * %H - Hour of the day, 24-hour clock, zero-padded (00..23) + * %k - Hour of the day, 24-hour clock, blank-padded ( 0..23) + * %I - Hour of the day, 12-hour clock, zero-padded (01..12) + * %l - Hour of the day, 12-hour clock, blank-padded ( 1..12) + * %P - Meridian indicator, lowercase (``am'' or ``pm'') + * %p - Meridian indicator, uppercase (``AM'' or ``PM'') + * + * %M - Minute of the hour (00..59) + * + * %S - Second of the minute (00..60) + * + * %L - Millisecond of the second (000..999) + * The digits under millisecond are truncated to not produce 1000. + * %N - Fractional seconds digits, default is 9 digits (nanosecond) + * %3N millisecond (3 digits) + * %6N microsecond (6 digits) + * %9N nanosecond (9 digits) + * %12N picosecond (12 digits) + * %15N femtosecond (15 digits) + * %18N attosecond (18 digits) + * %21N zeptosecond (21 digits) + * %24N yoctosecond (24 digits) + * The digits under the specified length are truncated to avoid + * carry up. + * + * Time zone: + * %z - Time zone as hour and minute offset from UTC (e.g. +0900) + * %:z - hour and minute offset from UTC with a colon (e.g. +09:00) + * %::z - hour, minute and second offset from UTC (e.g. +09:00:00) + * %Z - Abbreviated time zone name or similar information. (OS dependent) + * + * Weekday: + * %A - The full weekday name (``Sunday'') + * %^A uppercased (``SUNDAY'') + * %a - The abbreviated name (``Sun'') + * %^a uppercased (``SUN'') + * %u - Day of the week (Monday is 1, 1..7) + * %w - Day of the week (Sunday is 0, 0..6) + * + * ISO 8601 week-based year and week number: + * The first week of YYYY starts with a Monday and includes YYYY-01-04. + * The days in the year before the first week are in the last week of + * the previous year. + * %G - The week-based year + * %g - The last 2 digits of the week-based year (00..99) + * %V - Week number of the week-based year (01..53) + * + * Week number: + * The first week of YYYY that starts with a Sunday or Monday (according to %U + * or %W). The days in the year before the first week are in week 0. + * %U - Week number of the year. The week starts with Sunday. (00..53) + * %W - Week number of the year. The week starts with Monday. (00..53) + * + * Seconds since the Epoch: + * %s - Number of seconds since 1970-01-01 00:00:00 UTC. + * + * Literal string: + * %n - Newline character (\n) + * %t - Tab character (\t) + * %% - Literal ``%'' character + * + * Combination: + * %c - date and time (%a %b %e %T %Y) + * %D - Date (%m/%d/%y) + * %F - The ISO 8601 date format (%Y-%m-%d) + * %v - VMS date (%e-%^b-%4Y) + * %x - Same as %D + * %X - Same as %T + * %r - 12-hour time (%I:%M:%S %p) + * %R - 24-hour time (%H:%M) + * %T - 24-hour time (%H:%M:%S) + * + * This method is similar to strftime() function defined in ISO C and POSIX. + * + * While all directives are locale independent since Ruby 1.9, %Z is platform + * dependent. + * So, the result may differ even if the same format string is used in other + * systems such as C. + * + * %z is recommended over %Z. + * %Z doesn't identify the timezone. + * For example, "CST" is used at America/Chicago (-06:00), + * America/Havana (-05:00), Asia/Harbin (+08:00), Australia/Darwin (+09:30) + * and Australia/Adelaide (+10:30). + * Also, %Z is highly dependent on the operating system. + * For example, it may generate a non ASCII string on Japanese Windows. + * i.e. the result can be different to "JST". + * So the numeric time zone offset, %z, is recommended. + * + * Examples: + * + * t = Time.new(2007,11,19,8,37,48,"-06:00") #=> 2007-11-19 08:37:48 -0600 + * t.strftime("Printed on %m/%d/%Y") #=> "Printed on 11/19/2007" + * t.strftime("at %I:%M%p") #=> "at 08:37AM" + * + * Various ISO 8601 formats: + * %Y%m%d => 20071119 Calendar date (basic) + * %F => 2007-11-19 Calendar date (extended) + * %Y-%m => 2007-11 Calendar date, reduced accuracy, specific month + * %Y => 2007 Calendar date, reduced accuracy, specific year + * %C => 20 Calendar date, reduced accuracy, specific century + * %Y%j => 2007323 Ordinal date (basic) + * %Y-%j => 2007-323 Ordinal date (extended) + * %GW%V%u => 2007W471 Week date (basic) + * %G-W%V-%u => 2007-W47-1 Week date (extended) + * %GW%V => 2007W47 Week date, reduced accuracy, specific week (basic) + * %G-W%V => 2007-W47 Week date, reduced accuracy, specific week (extended) + * %H%M%S => 083748 Local time (basic) + * %T => 08:37:48 Local time (extended) + * %H%M => 0837 Local time, reduced accuracy, specific minute (basic) + * %H:%M => 08:37 Local time, reduced accuracy, specific minute (extended) + * %H => 08 Local time, reduced accuracy, specific hour + * %H%M%S,%L => 083748,000 Local time with decimal fraction, comma as decimal sign (basic) + * %T,%L => 08:37:48,000 Local time with decimal fraction, comma as decimal sign (extended) + * %H%M%S.%L => 083748.000 Local time with decimal fraction, full stop as decimal sign (basic) + * %T.%L => 08:37:48.000 Local time with decimal fraction, full stop as decimal sign (extended) + * %H%M%S%z => 083748-0600 Local time and the difference from UTC (basic) + * %T%:z => 08:37:48-06:00 Local time and the difference from UTC (extended) + * %Y%m%dT%H%M%S%z => 20071119T083748-0600 Date and time of day for calendar date (basic) + * %FT%T%:z => 2007-11-19T08:37:48-06:00 Date and time of day for calendar date (extended) + * %Y%jT%H%M%S%z => 2007323T083748-0600 Date and time of day for ordinal date (basic) + * %Y-%jT%T%:z => 2007-323T08:37:48-06:00 Date and time of day for ordinal date (extended) + * %GW%V%uT%H%M%S%z => 2007W471T083748-0600 Date and time of day for week date (basic) + * %G-W%V-%uT%T%:z => 2007-W47-1T08:37:48-06:00 Date and time of day for week date (extended) + * %Y%m%dT%H%M => 20071119T0837 Calendar date and local time (basic) + * %FT%R => 2007-11-19T08:37 Calendar date and local time (extended) + * %Y%jT%H%MZ => 2007323T0837Z Ordinal date and UTC of day (basic) + * %Y-%jT%RZ => 2007-323T08:37Z Ordinal date and UTC of day (extended) + * %GW%V%uT%H%M%z => 2007W471T0837-0600 Week date and local time and difference from UTC (basic) + * %G-W%V-%uT%R%:z => 2007-W47-1T08:37-06:00 Week date and local time and difference from UTC (extended) + * + */ + +static VALUE +time_strftime(VALUE time, VALUE format) +{ + struct time_object *tobj; + char buffer[SMALLBUF], *buf = buffer; + const char *fmt; + long len; + rb_encoding *enc; + VALUE str; + + GetTimeval(time, tobj); + MAKE_TM(time, tobj); + StringValue(format); + if (!rb_enc_str_asciicompat_p(format)) { + rb_raise(rb_eArgError, "format should have ASCII compatible encoding"); + } + format = rb_str_new4(format); + fmt = RSTRING_PTR(format); + len = RSTRING_LEN(format); + enc = rb_enc_get(format); + if (len == 0) { + rb_warning("strftime called with empty format string"); + } + else if (fmt[len] || memchr(fmt, '\0', len)) { + /* Ruby string may contain \0's. */ + const char *p = fmt, *pe = fmt + len; + + str = rb_str_new(0, 0); + while (p < pe) { + len = rb_strftime_alloc(&buf, format, p, enc, + &tobj->vtm, tobj->timew, TIME_UTC_P(tobj)); + rb_str_cat(str, buf, len); + p += strlen(p); + if (buf != buffer) { + xfree(buf); + buf = buffer; + } + for (fmt = p; p < pe && !*p; ++p); + if (p > fmt) rb_str_cat(str, fmt, p - fmt); + } + return str; + } + else { + len = rb_strftime_alloc(&buf, format, RSTRING_PTR(format), enc, + &tobj->vtm, tobj->timew, TIME_UTC_P(tobj)); + } + str = rb_enc_str_new(buf, len, enc); + if (buf != buffer) xfree(buf); + return str; +} + +/* :nodoc: */ +static VALUE +time_mdump(VALUE time) +{ + struct time_object *tobj; + unsigned long p, s; + char buf[8]; + int i; + VALUE str; + + struct vtm vtm; + long year; + long usec, nsec; + VALUE subsecx, nano, subnano, v; + + GetTimeval(time, tobj); + + gmtimew(tobj->timew, &vtm); + + if (FIXNUM_P(vtm.year)) { + year = FIX2LONG(vtm.year); + if (year < 1900 || 1900+0xffff < year) + rb_raise(rb_eArgError, "year too big to marshal: %ld UTC", year); + } + else { + rb_raise(rb_eArgError, "year too big to marshal"); + } + + subsecx = vtm.subsecx; + + nano = mulquo(subsecx, INT2FIX(1000000000), INT2FIX(TIME_SCALE)); + divmodv(nano, INT2FIX(1), &v, &subnano); + nsec = FIX2LONG(v); + usec = nsec / 1000; + nsec = nsec % 1000; + + nano = add(LONG2FIX(nsec), subnano); + + p = 0x1UL << 31 | /* 1 */ + TIME_UTC_P(tobj) << 30 | /* 1 */ + (year-1900) << 14 | /* 16 */ + (vtm.mon-1) << 10 | /* 4 */ + vtm.mday << 5 | /* 5 */ + vtm.hour; /* 5 */ + s = (unsigned long)vtm.min << 26 | /* 6 */ + vtm.sec << 20 | /* 6 */ + usec; /* 20 */ + + for (i=0; i<4; i++) { + buf[i] = (unsigned char)p; + p = RSHIFT(p, 8); + } + for (i=4; i<8; i++) { + buf[i] = (unsigned char)s; + s = RSHIFT(s, 8); + } + + str = rb_str_new(buf, 8); + rb_copy_generic_ivar(str, time); + if (!rb_equal(nano, INT2FIX(0))) { + if (RB_TYPE_P(nano, T_RATIONAL)) { + rb_ivar_set(str, id_nano_num, RRATIONAL(nano)->num); + rb_ivar_set(str, id_nano_den, RRATIONAL(nano)->den); + } + else { + rb_ivar_set(str, id_nano_num, nano); + rb_ivar_set(str, id_nano_den, INT2FIX(1)); + } + } + if (nsec) { /* submicro is only for Ruby 1.9.1 compatibility */ + /* + * submicro is formatted in fixed-point packed BCD (without sign). + * It represent digits under microsecond. + * For nanosecond resolution, 3 digits (2 bytes) are used. + * However it can be longer. + * Extra digits are ignored for loading. + */ + char buf[2]; + int len = (int)sizeof(buf); + buf[1] = (char)((nsec % 10) << 4); + nsec /= 10; + buf[0] = (char)(nsec % 10); + nsec /= 10; + buf[0] |= (char)((nsec % 10) << 4); + if (buf[1] == 0) + len = 1; + rb_ivar_set(str, id_submicro, rb_str_new(buf, len)); + } + if (!TIME_UTC_P(tobj)) { + VALUE off = time_utc_offset(time), div, mod; + divmodv(off, INT2FIX(1), &div, &mod); + if (rb_equal(mod, INT2FIX(0))) + off = rb_Integer(div); + rb_ivar_set(str, id_offset, off); + } + if (tobj->vtm.zone) { + rb_ivar_set(str, id_zone, time_zone_name(tobj->vtm.zone)); + } + return str; +} + +/* :nodoc: */ +static VALUE +time_dump(int argc, VALUE *argv, VALUE time) +{ + VALUE str; + + rb_scan_args(argc, argv, "01", 0); + str = time_mdump(time); + + return str; +} + +/* :nodoc: */ +static VALUE +time_mload(VALUE time, VALUE str) +{ + struct time_object *tobj; + unsigned long p, s; + time_t sec; + long usec; + unsigned char *buf; + struct vtm vtm; + int i, gmt; + long nsec; + VALUE submicro, nano_num, nano_den, offset, zone; + wideval_t timew; + st_data_t data; + + time_modify(time); + +#define get_attr(attr, iffound) \ + attr = rb_attr_get(str, id_##attr); \ + if (!NIL_P(attr)) { \ + data = id_##attr; \ + iffound; \ + st_delete(rb_generic_ivar_table(str), &data, 0); \ + } + + get_attr(nano_num, {}); + get_attr(nano_den, {}); + get_attr(submicro, {}); + get_attr(offset, (offset = rb_rescue(validate_utc_offset, offset, NULL, Qnil))); + get_attr(zone, (zone = rb_rescue(validate_zone_name, zone, NULL, Qnil))); + +#undef get_attr + + rb_copy_generic_ivar(time, str); + + StringValue(str); + buf = (unsigned char *)RSTRING_PTR(str); + if (RSTRING_LEN(str) != 8) { + rb_raise(rb_eTypeError, "marshaled time format differ"); + } + + p = s = 0; + for (i=0; i<4; i++) { + p |= (unsigned long)buf[i]<<(8*i); + } + for (i=4; i<8; i++) { + s |= (unsigned long)buf[i]<<(8*(i-4)); + } + + if ((p & (1UL<<31)) == 0) { + gmt = 0; + offset = Qnil; + sec = p; + usec = s; + nsec = usec * 1000; + timew = wadd(rb_time_magnify(TIMET2WV(sec)), wmulquoll(WINT2FIXWV(usec), TIME_SCALE, 1000000)); + } + else { + p &= ~(1UL<<31); + gmt = (int)((p >> 30) & 0x1); + + vtm.year = INT2FIX(((int)(p >> 14) & 0xffff) + 1900); + vtm.mon = ((int)(p >> 10) & 0xf) + 1; + vtm.mday = (int)(p >> 5) & 0x1f; + vtm.hour = (int) p & 0x1f; + vtm.min = (int)(s >> 26) & 0x3f; + vtm.sec = (int)(s >> 20) & 0x3f; + vtm.utc_offset = INT2FIX(0); + vtm.yday = vtm.wday = 0; + vtm.isdst = 0; + vtm.zone = ""; + + usec = (long)(s & 0xfffff); + nsec = usec * 1000; + + + vtm.subsecx = mulquo(LONG2FIX(nsec), INT2FIX(TIME_SCALE), LONG2FIX(1000000000)); + if (nano_num != Qnil) { + VALUE nano = quo(num_exact(nano_num), num_exact(nano_den)); + vtm.subsecx = add(vtm.subsecx, mulquo(nano, INT2FIX(TIME_SCALE), LONG2FIX(1000000000))); + } + else if (submicro != Qnil) { /* for Ruby 1.9.1 compatibility */ + unsigned char *ptr; + long len; + int digit; + ptr = (unsigned char*)StringValuePtr(submicro); + len = RSTRING_LEN(submicro); + nsec = 0; + if (0 < len) { + if (10 <= (digit = ptr[0] >> 4)) goto end_submicro; + nsec += digit * 100; + if (10 <= (digit = ptr[0] & 0xf)) goto end_submicro; + nsec += digit * 10; + } + if (1 < len) { + if (10 <= (digit = ptr[1] >> 4)) goto end_submicro; + nsec += digit; + } + vtm.subsecx = add(vtm.subsecx, mulquo(LONG2FIX(nsec), INT2FIX(TIME_SCALE), LONG2FIX(1000000000))); +end_submicro: ; + } + timew = timegmw(&vtm); + } + + GetNewTimeval(time, tobj); + tobj->gmt = 0; + tobj->tm_got = 0; + tobj->timew = timew; + if (gmt) { + TIME_SET_UTC(tobj); + } + else if (!NIL_P(offset)) { + time_set_utc_offset(time, offset); + time_fixoff(time); + } + if (!NIL_P(zone)) { + zone = rb_str_new_frozen(zone); + tobj->vtm.zone = StringValueCStr(zone); + rb_ivar_set(time, id_zone, zone); + } + + return time; +} + +/* :nodoc: */ +static VALUE +time_load(VALUE klass, VALUE str) +{ + VALUE time = time_s_alloc(klass); + + time_mload(time, str); + return time; +} + +/* + * Time is an abstraction of dates and times. Time is stored internally as + * the number of seconds with fraction since the _Epoch_, January 1, 1970 + * 00:00 UTC. Also see the library module Date. The Time class treats GMT + * (Greenwich Mean Time) and UTC (Coordinated Universal Time) as equivalent. + * GMT is the older way of referring to these baseline times but persists in + * the names of calls on POSIX systems. + * + * All times may have fraction. Be aware of this fact when comparing times + * with each other -- times that are apparently equal when displayed may be + * different when compared. + * + * Since Ruby 1.9.2, Time implementation uses a signed 63 bit integer, + * Bignum or Rational. + * The integer is a number of nanoseconds since the _Epoch_ which can + * represent 1823-11-12 to 2116-02-20. + * When Bignum or Rational is used (before 1823, after 2116, under + * nanosecond), Time works slower as when integer is used. + * + * = Examples + * + * All of these examples were done using the EST timezone which is GMT-5. + * + * == Creating a new Time instance + * + * You can create a new instance of Time with Time::new. This will use the + * current system time. Time::now is an alias for this. You can also + * pass parts of the time to Time::new such as year, month, minute, etc. When + * you want to construct a time this way you must pass at least a year. If you + * pass the year with nothing else time will default to January 1 of that year + * at 00:00:00 with the current system timezone. Here are some examples: + * + * Time.new(2002) #=> 2002-01-01 00:00:00 -0500 + * Time.new(2002, 10) #=> 2002-10-01 00:00:00 -0500 + * Time.new(2002, 10, 31) #=> 2002-10-31 00:00:00 -0500 + * Time.new(2002, 10, 31, 2, 2, 2, "+02:00") #=> 2002-10-31 02:02:02 +0200 + * + * You can also use #gm, #local and + * #utc to infer GMT, local and UTC timezones instead of using + * the current system setting. + * + * You can also create a new time using Time::at which takes the number of + * seconds (or fraction of seconds) since the {Unix + * Epoch}[http://en.wikipedia.org/wiki/Unix_time]. + * + * Time.at(628232400) #=> 1989-11-28 00:00:00 -0500 + * + * == Working with an instance of Time + * + * Once you have an instance of Time there is a multitude of things you can + * do with it. Below are some examples. For all of the following examples, we + * will work on the assumption that you have done the following: + * + * t = Time.new(1993, 02, 24, 12, 0, 0, "+09:00") + * + * Was that a monday? + * + * t.monday? #=> false + * + * What year was that again? + * + * t.year #=> 1993 + * + * Was is daylight savings at the time? + * + * t.dst? #=> false + * + * What's the day a year later? + * + * t + (60*60*24*365) #=> 1994-02-24 12:00:00 +0900 + * + * How many seconds was that since the Unix Epoch? + * + * t.to_i #=> 730522800 + * + * You can also do standard functions like compare two times. + * + * t1 = Time.new(2010) + * t2 = Time.new(2011) + * + * t1 == t2 #=> false + * t1 == t1 #=> true + * t1 < t2 #=> true + * t1 > t2 #=> false + * + * Time.new(2010,10,31).between?(t1, t2) #=> true + */ + +void +Init_Time(void) +{ +#undef rb_intern +#define rb_intern(str) rb_intern_const(str) + + id_eq = rb_intern("=="); + id_ne = rb_intern("!="); + id_quo = rb_intern("quo"); + id_div = rb_intern("div"); + id_cmp = rb_intern("<=>"); + id_divmod = rb_intern("divmod"); + id_mul = rb_intern("*"); + id_submicro = rb_intern("submicro"); + id_nano_num = rb_intern("nano_num"); + id_nano_den = rb_intern("nano_den"); + id_offset = rb_intern("offset"); + id_zone = rb_intern("zone"); + + rb_cTime = rb_define_class("Time", rb_cObject); + rb_include_module(rb_cTime, rb_mComparable); + + rb_define_alloc_func(rb_cTime, time_s_alloc); + rb_define_singleton_method(rb_cTime, "now", time_s_now, 0); + rb_define_singleton_method(rb_cTime, "at", time_s_at, -1); + rb_define_singleton_method(rb_cTime, "utc", time_s_mkutc, -1); + rb_define_singleton_method(rb_cTime, "gm", time_s_mkutc, -1); + rb_define_singleton_method(rb_cTime, "local", time_s_mktime, -1); + rb_define_singleton_method(rb_cTime, "mktime", time_s_mktime, -1); + + rb_define_method(rb_cTime, "to_i", time_to_i, 0); + rb_define_method(rb_cTime, "to_f", time_to_f, 0); + rb_define_method(rb_cTime, "to_r", time_to_r, 0); + rb_define_method(rb_cTime, "<=>", time_cmp, 1); + rb_define_method(rb_cTime, "eql?", time_eql, 1); + rb_define_method(rb_cTime, "hash", time_hash, 0); + rb_define_method(rb_cTime, "initialize", time_init, -1); + rb_define_method(rb_cTime, "initialize_copy", time_init_copy, 1); + + rb_define_method(rb_cTime, "localtime", time_localtime_m, -1); + rb_define_method(rb_cTime, "gmtime", time_gmtime, 0); + rb_define_method(rb_cTime, "utc", time_gmtime, 0); + rb_define_method(rb_cTime, "getlocal", time_getlocaltime, -1); + rb_define_method(rb_cTime, "getgm", time_getgmtime, 0); + rb_define_method(rb_cTime, "getutc", time_getgmtime, 0); + + rb_define_method(rb_cTime, "ctime", time_asctime, 0); + rb_define_method(rb_cTime, "asctime", time_asctime, 0); + rb_define_method(rb_cTime, "to_s", time_to_s, 0); + rb_define_method(rb_cTime, "inspect", time_to_s, 0); + rb_define_method(rb_cTime, "to_a", time_to_a, 0); + + rb_define_method(rb_cTime, "+", time_plus, 1); + rb_define_method(rb_cTime, "-", time_minus, 1); + + rb_define_method(rb_cTime, "succ", time_succ, 0); + rb_define_method(rb_cTime, "round", time_round, -1); + + rb_define_method(rb_cTime, "sec", time_sec, 0); + rb_define_method(rb_cTime, "min", time_min, 0); + rb_define_method(rb_cTime, "hour", time_hour, 0); + rb_define_method(rb_cTime, "mday", time_mday, 0); + rb_define_method(rb_cTime, "day", time_mday, 0); + rb_define_method(rb_cTime, "mon", time_mon, 0); + rb_define_method(rb_cTime, "month", time_mon, 0); + rb_define_method(rb_cTime, "year", time_year, 0); + rb_define_method(rb_cTime, "wday", time_wday, 0); + rb_define_method(rb_cTime, "yday", time_yday, 0); + rb_define_method(rb_cTime, "isdst", time_isdst, 0); + rb_define_method(rb_cTime, "dst?", time_isdst, 0); + rb_define_method(rb_cTime, "zone", time_zone, 0); + rb_define_method(rb_cTime, "gmtoff", time_utc_offset, 0); + rb_define_method(rb_cTime, "gmt_offset", time_utc_offset, 0); + rb_define_method(rb_cTime, "utc_offset", time_utc_offset, 0); + + rb_define_method(rb_cTime, "utc?", time_utc_p, 0); + rb_define_method(rb_cTime, "gmt?", time_utc_p, 0); + + rb_define_method(rb_cTime, "sunday?", time_sunday, 0); + rb_define_method(rb_cTime, "monday?", time_monday, 0); + rb_define_method(rb_cTime, "tuesday?", time_tuesday, 0); + rb_define_method(rb_cTime, "wednesday?", time_wednesday, 0); + rb_define_method(rb_cTime, "thursday?", time_thursday, 0); + rb_define_method(rb_cTime, "friday?", time_friday, 0); + rb_define_method(rb_cTime, "saturday?", time_saturday, 0); + + rb_define_method(rb_cTime, "tv_sec", time_to_i, 0); + rb_define_method(rb_cTime, "tv_usec", time_usec, 0); + rb_define_method(rb_cTime, "usec", time_usec, 0); + rb_define_method(rb_cTime, "tv_nsec", time_nsec, 0); + rb_define_method(rb_cTime, "nsec", time_nsec, 0); + rb_define_method(rb_cTime, "subsec", time_subsec, 0); + + rb_define_method(rb_cTime, "strftime", time_strftime, 1); + + /* methods for marshaling */ + rb_define_private_method(rb_cTime, "_dump", time_dump, -1); + rb_define_private_method(rb_singleton_class(rb_cTime), "_load", time_load, 1); +#if 0 + /* Time will support marshal_dump and marshal_load in the future (1.9 maybe) */ + rb_define_private_method(rb_cTime, "marshal_dump", time_mdump, 0); + rb_define_private_method(rb_cTime, "marshal_load", time_mload, 1); +#endif + +#ifdef DEBUG_FIND_TIME_NUMGUESS + rb_define_virtual_variable("$find_time_numguess", find_time_numguess_getter, NULL); +#endif +} |