From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001 From: Jari Vetoniemi Date: Mon, 16 Mar 2020 18:49:26 +0900 Subject: Fresh start --- jni/ruby/ext/io/console/console.c | 774 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 774 insertions(+) create mode 100644 jni/ruby/ext/io/console/console.c (limited to 'jni/ruby/ext/io/console/console.c') diff --git a/jni/ruby/ext/io/console/console.c b/jni/ruby/ext/io/console/console.c new file mode 100644 index 0000000..e846450 --- /dev/null +++ b/jni/ruby/ext/io/console/console.c @@ -0,0 +1,774 @@ +/* -*- c-file-style: "ruby" -*- */ +/* + * console IO module + */ +#include "ruby.h" +#include "ruby/io.h" + +#ifdef HAVE_UNISTD_H +#include +#endif +#ifdef HAVE_FCNTL_H +#include +#endif +#ifdef HAVE_SYS_IOCTL_H +#include +#endif + +#if defined HAVE_TERMIOS_H +# include +typedef struct termios conmode; + +static int +setattr(int fd, conmode *t) +{ + while (tcsetattr(fd, TCSAFLUSH, t)) { + if (errno != EINTR) return 0; + } + return 1; +} +# define getattr(fd, t) (tcgetattr(fd, t) == 0) +#elif defined HAVE_TERMIO_H +# include +typedef struct termio conmode; +# define setattr(fd, t) (ioctl(fd, TCSETAF, t) == 0) +# define getattr(fd, t) (ioctl(fd, TCGETA, t) == 0) +#elif defined HAVE_SGTTY_H +# include +typedef struct sgttyb conmode; +# ifdef HAVE_STTY +# define setattr(fd, t) (stty(fd, t) == 0) +# else +# define setattr(fd, t) (ioctl((fd), TIOCSETP, (t)) == 0) +# endif +# ifdef HAVE_GTTY +# define getattr(fd, t) (gtty(fd, t) == 0) +# else +# define getattr(fd, t) (ioctl((fd), TIOCGETP, (t)) == 0) +# endif +#elif defined _WIN32 +#include +typedef DWORD conmode; + +#ifdef HAVE_RB_W32_MAP_ERRNO +#define LAST_ERROR rb_w32_map_errno(GetLastError()) +#else +#define LAST_ERROR EBADF +#endif +#define SET_LAST_ERROR (errno = LAST_ERROR, 0) + +static int +setattr(int fd, conmode *t) +{ + int x = SetConsoleMode((HANDLE)rb_w32_get_osfhandle(fd), *t); + if (!x) errno = LAST_ERROR; + return x; +} + +static int +getattr(int fd, conmode *t) +{ + int x = GetConsoleMode((HANDLE)rb_w32_get_osfhandle(fd), t); + if (!x) errno = LAST_ERROR; + return x; +} +#endif +#ifndef SET_LAST_ERROR +#define SET_LAST_ERROR (0) +#endif + +static ID id_getc, id_console, id_close; + +typedef struct { + int vmin; + int vtime; +} rawmode_arg_t; + +static rawmode_arg_t * +rawmode_opt(int argc, VALUE *argv, rawmode_arg_t *opts) +{ + rawmode_arg_t *optp = NULL; + VALUE vopts; + rb_scan_args(argc, argv, "0:", &vopts); + if (!NIL_P(vopts)) { + VALUE vmin = rb_hash_aref(vopts, ID2SYM(rb_intern("min"))); + VALUE vtime = rb_hash_aref(vopts, ID2SYM(rb_intern("time"))); + /* default values by `stty raw` */ + opts->vmin = 1; + opts->vtime = 0; + if (!NIL_P(vmin)) { + opts->vmin = NUM2INT(vmin); + optp = opts; + } + if (!NIL_P(vtime)) { + VALUE v10 = INT2FIX(10); + vtime = rb_funcall3(vtime, '*', 1, &v10); + opts->vtime = NUM2INT(vtime); + optp = opts; + } + } + return optp; +} + +static void +set_rawmode(conmode *t, void *arg) +{ +#ifdef HAVE_CFMAKERAW + cfmakeraw(t); + t->c_lflag &= ~(ECHOE|ECHOK); +#elif defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H + t->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON); + t->c_oflag &= ~OPOST; + t->c_lflag &= ~(ECHO|ECHOE|ECHOK|ECHONL|ICANON|ISIG|IEXTEN); + t->c_cflag &= ~(CSIZE|PARENB); + t->c_cflag |= CS8; +#elif defined HAVE_SGTTY_H + t->sg_flags &= ~ECHO; + t->sg_flags |= RAW; +#elif defined _WIN32 + *t = 0; +#endif +#if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H + if (arg) { + const rawmode_arg_t *r = arg; + if (r->vmin >= 0) t->c_cc[VMIN] = r->vmin; + if (r->vtime >= 0) t->c_cc[VTIME] = r->vtime; + } +#endif +} + +static void +set_cookedmode(conmode *t, void *arg) +{ +#if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H + t->c_iflag |= (BRKINT|ISTRIP|ICRNL|IXON); + t->c_oflag |= OPOST; + t->c_lflag |= (ECHO|ECHOE|ECHOK|ECHONL|ICANON|ISIG|IEXTEN); +#elif defined HAVE_SGTTY_H + t->sg_flags |= ECHO; + t->sg_flags &= ~RAW; +#elif defined _WIN32 + *t |= ENABLE_ECHO_INPUT|ENABLE_LINE_INPUT|ENABLE_PROCESSED_INPUT; +#endif +} + +static void +set_noecho(conmode *t, void *arg) +{ +#if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H + t->c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL); +#elif defined HAVE_SGTTY_H + t->sg_flags &= ~ECHO; +#elif defined _WIN32 + *t &= ~ENABLE_ECHO_INPUT; +#endif +} + +static void +set_echo(conmode *t, void *arg) +{ +#if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H + t->c_lflag |= (ECHO | ECHOE | ECHOK | ECHONL); +#elif defined HAVE_SGTTY_H + t->sg_flags |= ECHO; +#elif defined _WIN32 + *t |= ENABLE_ECHO_INPUT; +#endif +} + +static int +echo_p(conmode *t) +{ +#if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H + return (t->c_lflag & (ECHO | ECHONL)) != 0; +#elif defined HAVE_SGTTY_H + return (t->sg_flags & ECHO) != 0; +#elif defined _WIN32 + return (*t & ENABLE_ECHO_INPUT) != 0; +#endif +} + +static int +set_ttymode(int fd, conmode *t, void (*setter)(conmode *, void *), void *arg) +{ + conmode r; + if (!getattr(fd, t)) return 0; + r = *t; + setter(&r, arg); + return setattr(fd, &r); +} + +#define GetReadFD(fptr) ((fptr)->fd) + +static inline int +get_write_fd(const rb_io_t *fptr) +{ + VALUE wio = fptr->tied_io_for_writing; + rb_io_t *ofptr; + if (!wio) return fptr->fd; + GetOpenFile(wio, ofptr); + return ofptr->fd; +} +#define GetWriteFD(fptr) get_write_fd(fptr) + +#define FD_PER_IO 2 + +static VALUE +ttymode(VALUE io, VALUE (*func)(VALUE), void (*setter)(conmode *, void *), void *arg) +{ + rb_io_t *fptr; + int status = -1; + int error = 0; + int fd[FD_PER_IO]; + conmode t[FD_PER_IO]; + VALUE result = Qnil; + + GetOpenFile(io, fptr); + fd[0] = GetReadFD(fptr); + if (fd[0] != -1) { + if (set_ttymode(fd[0], t+0, setter, arg)) { + status = 0; + } + else { + error = errno; + fd[0] = -1; + } + } + fd[1] = GetWriteFD(fptr); + if (fd[1] != -1 && fd[1] != fd[0]) { + if (set_ttymode(fd[1], t+1, setter, arg)) { + status = 0; + } + else { + error = errno; + fd[1] = -1; + } + } + if (status == 0) { + result = rb_protect(func, io, &status); + } + GetOpenFile(io, fptr); + if (fd[0] != -1 && fd[0] == GetReadFD(fptr)) { + if (!setattr(fd[0], t+0)) { + error = errno; + status = -1; + } + } + if (fd[1] != -1 && fd[1] != fd[0] && fd[1] == GetWriteFD(fptr)) { + if (!setattr(fd[1], t+1)) { + error = errno; + status = -1; + } + } + if (status) { + if (status == -1) { + errno = error; + rb_sys_fail(0); + } + rb_jump_tag(status); + } + return result; +} + +/* + * call-seq: + * io.raw(min: nil, time: nil) {|io| } + * + * Yields +self+ within raw mode. + * + * STDIN.raw(&:gets) + * + * will read and return a line without echo back and line editing. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_raw(int argc, VALUE *argv, VALUE io) +{ + rawmode_arg_t opts, *optp = rawmode_opt(argc, argv, &opts); + return ttymode(io, rb_yield, set_rawmode, optp); +} + +/* + * call-seq: + * io.raw!(min: nil, time: nil) + * + * Enables raw mode. + * + * If the terminal mode needs to be back, use io.raw { ... }. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_set_raw(int argc, VALUE *argv, VALUE io) +{ + conmode t; + rb_io_t *fptr; + int fd; + rawmode_arg_t opts, *optp = rawmode_opt(argc, argv, &opts); + + GetOpenFile(io, fptr); + fd = GetReadFD(fptr); + if (!getattr(fd, &t)) rb_sys_fail(0); + set_rawmode(&t, optp); + if (!setattr(fd, &t)) rb_sys_fail(0); + return io; +} + +/* + * call-seq: + * io.cooked {|io| } + * + * Yields +self+ within cooked mode. + * + * STDIN.cooked(&:gets) + * + * will read and return a line with echo back and line editing. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_cooked(VALUE io) +{ + return ttymode(io, rb_yield, set_cookedmode, NULL); +} + +/* + * call-seq: + * io.cooked! + * + * Enables cooked mode. + * + * If the terminal mode needs to be back, use io.cooked { ... }. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_set_cooked(VALUE io) +{ + conmode t; + rb_io_t *fptr; + int fd; + + GetOpenFile(io, fptr); + fd = GetReadFD(fptr); + if (!getattr(fd, &t)) rb_sys_fail(0); + set_cookedmode(&t, NULL); + if (!setattr(fd, &t)) rb_sys_fail(0); + return io; +} + +static VALUE +getc_call(VALUE io) +{ + return rb_funcall2(io, id_getc, 0, 0); +} + +/* + * call-seq: + * io.getch(min: nil, time: nil) -> char + * + * Reads and returns a character in raw mode. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_getch(int argc, VALUE *argv, VALUE io) +{ + rawmode_arg_t opts, *optp = rawmode_opt(argc, argv, &opts); + return ttymode(io, getc_call, set_rawmode, optp); +} + +/* + * call-seq: + * io.noecho {|io| } + * + * Yields +self+ with disabling echo back. + * + * STDIN.noecho(&:gets) + * + * will read and return a line without echo back. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_noecho(VALUE io) +{ + return ttymode(io, rb_yield, set_noecho, NULL); +} + +/* + * call-seq: + * io.echo = flag + * + * Enables/disables echo back. + * On some platforms, all combinations of this flags and raw/cooked + * mode may not be valid. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_set_echo(VALUE io, VALUE f) +{ + conmode t; + rb_io_t *fptr; + int fd; + + GetOpenFile(io, fptr); + fd = GetReadFD(fptr); + if (!getattr(fd, &t)) rb_sys_fail(0); + if (RTEST(f)) + set_echo(&t, NULL); + else + set_noecho(&t, NULL); + if (!setattr(fd, &t)) rb_sys_fail(0); + return io; +} + +/* + * call-seq: + * io.echo? -> true or false + * + * Returns +true+ if echo back is enabled. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_echo_p(VALUE io) +{ + conmode t; + rb_io_t *fptr; + int fd; + + GetOpenFile(io, fptr); + fd = GetReadFD(fptr); + if (!getattr(fd, &t)) rb_sys_fail(0); + return echo_p(&t) ? Qtrue : Qfalse; +} + +#if defined TIOCGWINSZ +typedef struct winsize rb_console_size_t; +#define getwinsize(fd, buf) (ioctl((fd), TIOCGWINSZ, (buf)) == 0) +#define setwinsize(fd, buf) (ioctl((fd), TIOCSWINSZ, (buf)) == 0) +#define winsize_row(buf) (buf)->ws_row +#define winsize_col(buf) (buf)->ws_col +#elif defined _WIN32 +typedef CONSOLE_SCREEN_BUFFER_INFO rb_console_size_t; +#define getwinsize(fd, buf) ( \ + GetConsoleScreenBufferInfo((HANDLE)rb_w32_get_osfhandle(fd), (buf)) || \ + SET_LAST_ERROR) +#define winsize_row(buf) ((buf)->srWindow.Bottom - (buf)->srWindow.Top + 1) +#define winsize_col(buf) (buf)->dwSize.X +#endif + +#if defined TIOCGWINSZ || defined _WIN32 +#define USE_CONSOLE_GETSIZE 1 +#endif + +#ifdef USE_CONSOLE_GETSIZE +/* + * call-seq: + * io.winsize -> [rows, columns] + * + * Returns console size. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_winsize(VALUE io) +{ + rb_io_t *fptr; + int fd; + rb_console_size_t ws; + + GetOpenFile(io, fptr); + fd = GetWriteFD(fptr); + if (!getwinsize(fd, &ws)) rb_sys_fail(0); + return rb_assoc_new(INT2NUM(winsize_row(&ws)), INT2NUM(winsize_col(&ws))); +} + +/* + * call-seq: + * io.winsize = [rows, columns] + * + * Tries to set console size. The effect depends on the platform and + * the running environment. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_set_winsize(VALUE io, VALUE size) +{ + rb_io_t *fptr; + rb_console_size_t ws; +#if defined _WIN32 + HANDLE wh; + int newrow, newcol; +#endif + VALUE row, col, xpixel, ypixel; +#if defined TIOCSWINSZ + int fd; +#endif + + GetOpenFile(io, fptr); + size = rb_Array(size); + rb_scan_args((int)RARRAY_LEN(size), RARRAY_PTR(size), "22", + &row, &col, &xpixel, &ypixel); +#if defined TIOCSWINSZ + fd = GetWriteFD(fptr); + ws.ws_row = ws.ws_col = ws.ws_xpixel = ws.ws_ypixel = 0; +#define SET(m) ws.ws_##m = NIL_P(m) ? 0 : (unsigned short)NUM2UINT(m) + SET(row); + SET(col); + SET(xpixel); + SET(ypixel); +#undef SET + if (!setwinsize(fd, &ws)) rb_sys_fail(0); +#elif defined _WIN32 + wh = (HANDLE)rb_w32_get_osfhandle(GetReadFD(fptr)); + newrow = (SHORT)NUM2UINT(row); + newcol = (SHORT)NUM2UINT(col); + if (!getwinsize(GetReadFD(fptr), &ws)) { + rb_sys_fail("GetConsoleScreenBufferInfo"); + } + if ((ws.dwSize.X < newcol && (ws.dwSize.X = newcol, 1)) || + (ws.dwSize.Y < newrow && (ws.dwSize.Y = newrow, 1))) { + if (!(SetConsoleScreenBufferSize(wh, ws.dwSize) || SET_LAST_ERROR)) { + rb_sys_fail("SetConsoleScreenBufferInfo"); + } + } + ws.srWindow.Left = 0; + ws.srWindow.Top = 0; + ws.srWindow.Right = newcol; + ws.srWindow.Bottom = newrow; + if (!(SetConsoleWindowInfo(wh, FALSE, &ws.srWindow) || SET_LAST_ERROR)) { + rb_sys_fail("SetConsoleWindowInfo"); + } +#endif + return io; +} +#endif + +/* + * call-seq: + * io.iflush + * + * Flushes input buffer in kernel. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_iflush(VALUE io) +{ + rb_io_t *fptr; + int fd; + + GetOpenFile(io, fptr); + fd = GetReadFD(fptr); +#if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H + if (tcflush(fd, TCIFLUSH)) rb_sys_fail(0); +#endif + (void)fd; + return io; +} + +/* + * call-seq: + * io.oflush + * + * Flushes output buffer in kernel. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_oflush(VALUE io) +{ + rb_io_t *fptr; + int fd; + + GetOpenFile(io, fptr); + fd = GetWriteFD(fptr); +#if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H + if (tcflush(fd, TCOFLUSH)) rb_sys_fail(0); +#endif + (void)fd; + return io; +} + +/* + * call-seq: + * io.ioflush + * + * Flushes input and output buffers in kernel. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_ioflush(VALUE io) +{ + rb_io_t *fptr; +#if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H + int fd1, fd2; +#endif + + GetOpenFile(io, fptr); +#if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H + fd1 = GetReadFD(fptr); + fd2 = GetWriteFD(fptr); + if (fd2 != -1 && fd1 != fd2) { + if (tcflush(fd1, TCIFLUSH)) rb_sys_fail(0); + if (tcflush(fd2, TCOFLUSH)) rb_sys_fail(0); + } + else { + if (tcflush(fd1, TCIOFLUSH)) rb_sys_fail(0); + } +#endif + return io; +} + +/* + * call-seq: + * IO.console -> # + * IO.console(sym, *args) + * + * Returns an File instance opened console. + * + * If +sym+ is given, it will be sent to the opened console with + * +args+ and the result will be returned instead of the console IO + * itself. + * + * You must require 'io/console' to use this method. + */ +static VALUE +console_dev(int argc, VALUE *argv, VALUE klass) +{ + VALUE con = 0; + rb_io_t *fptr; + VALUE sym = 0; + + rb_check_arity(argc, 0, 1); + if (argc) { + Check_Type(sym = argv[0], T_SYMBOL); + --argc; + ++argv; + } + if (klass == rb_cIO) klass = rb_cFile; + if (rb_const_defined(klass, id_console)) { + con = rb_const_get(klass, id_console); + if (!RB_TYPE_P(con, T_FILE) || + (!(fptr = RFILE(con)->fptr) || GetReadFD(fptr) == -1)) { + rb_const_remove(klass, id_console); + con = 0; + } + } + if (sym) { + if (sym == ID2SYM(id_close) && !argc) { + if (con) { + rb_io_close(con); + rb_const_remove(klass, id_console); + con = 0; + } + return Qnil; + } + } + if (!con) { + VALUE args[2]; +#if defined HAVE_TERMIOS_H || defined HAVE_TERMIO_H || defined HAVE_SGTTY_H +# define CONSOLE_DEVICE "/dev/tty" +#elif defined _WIN32 +# define CONSOLE_DEVICE "con$" +# define CONSOLE_DEVICE_FOR_READING "conin$" +# define CONSOLE_DEVICE_FOR_WRITING "conout$" +#endif +#ifndef CONSOLE_DEVICE_FOR_READING +# define CONSOLE_DEVICE_FOR_READING CONSOLE_DEVICE +#endif +#ifdef CONSOLE_DEVICE_FOR_WRITING + VALUE out; + rb_io_t *ofptr; +#endif + int fd; + +#ifdef CONSOLE_DEVICE_FOR_WRITING + fd = rb_cloexec_open(CONSOLE_DEVICE_FOR_WRITING, O_RDWR, 0); + if (fd < 0) return Qnil; + rb_update_max_fd(fd); + args[1] = INT2FIX(O_WRONLY); + args[0] = INT2NUM(fd); + out = rb_class_new_instance(2, args, klass); +#endif + fd = rb_cloexec_open(CONSOLE_DEVICE_FOR_READING, O_RDWR, 0); + if (fd < 0) { +#ifdef CONSOLE_DEVICE_FOR_WRITING + rb_io_close(out); +#endif + return Qnil; + } + rb_update_max_fd(fd); + args[1] = INT2FIX(O_RDWR); + args[0] = INT2NUM(fd); + con = rb_class_new_instance(2, args, klass); + GetOpenFile(con, fptr); + fptr->pathv = rb_obj_freeze(rb_str_new2(CONSOLE_DEVICE)); +#ifdef CONSOLE_DEVICE_FOR_WRITING + GetOpenFile(out, ofptr); + ofptr->pathv = fptr->pathv; + fptr->tied_io_for_writing = out; + ofptr->mode |= FMODE_SYNC; +#endif + fptr->mode |= FMODE_SYNC; + rb_const_set(klass, id_console, con); + } + if (sym) { + /* TODO: avoid inadvertent pindown */ + return rb_funcall(con, SYM2ID(sym), argc, argv); + } + return con; +} + +/* + * call-seq: + * io.getch(min: nil, time: nil) -> char + * + * See IO#getch. + */ +static VALUE +io_getch(int argc, VALUE *argv, VALUE io) +{ + return rb_funcall2(io, rb_intern("getc"), argc, argv); +} + +/* + * IO console methods + */ +void +Init_console(void) +{ + id_getc = rb_intern("getc"); + id_console = rb_intern("console"); + id_close = rb_intern("close"); + InitVM(console); +} + +void +InitVM_console(void) +{ + rb_define_method(rb_cIO, "raw", console_raw, -1); + rb_define_method(rb_cIO, "raw!", console_set_raw, -1); + rb_define_method(rb_cIO, "cooked", console_cooked, 0); + rb_define_method(rb_cIO, "cooked!", console_set_cooked, 0); + rb_define_method(rb_cIO, "getch", console_getch, -1); + rb_define_method(rb_cIO, "echo=", console_set_echo, 1); + rb_define_method(rb_cIO, "echo?", console_echo_p, 0); + rb_define_method(rb_cIO, "noecho", console_noecho, 0); + rb_define_method(rb_cIO, "winsize", console_winsize, 0); + rb_define_method(rb_cIO, "winsize=", console_set_winsize, 1); + rb_define_method(rb_cIO, "iflush", console_iflush, 0); + rb_define_method(rb_cIO, "oflush", console_oflush, 0); + rb_define_method(rb_cIO, "ioflush", console_ioflush, 0); + rb_define_singleton_method(rb_cIO, "console", console_dev, -1); + { + VALUE mReadable = rb_define_module_under(rb_cIO, "generic_readable"); + rb_define_method(mReadable, "getch", io_getch, -1); + } +} -- cgit v1.2.3