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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <pthread.h>
#include <sys/stat.h>
#include <sys/mount.h>
#include <fcntl.h>
#include <pthread.h>
#include "ppapi/c/pp_errors.h"
#include "ppapi/c/pp_module.h"
#include "ppapi/c/pp_var.h"
#include "ppapi/c/ppb.h"
#include "ppapi/c/ppb_core.h"
#include "ppapi/c/ppb_file_ref.h"
#include "ppapi/c/ppb_instance.h"
#include "ppapi/c/ppb_messaging.h"
#include "ppapi/c/ppb_url_loader.h"
#include "ppapi/c/ppb_url_request_info.h"
#include "ppapi/c/ppb_url_response_info.h"
#include "ppapi/c/ppb_var.h"
#include "ppapi/c/ppp.h"
#include "ppapi/c/ppp_instance.h"
#include "ppapi/c/ppp_messaging.h"
#include "nacl_io/nacl_io.h"
#include "verconf.h"
#include "ruby/ruby.h"
#include "version.h"
#include "gc.h"
#ifdef HAVE_STRUCT_PPB_CORE
typedef struct PPB_Core PPB_Core;
#endif
#ifdef HAVE_STRUCT_PPB_MESSAGING
typedef struct PPB_Messaging PPB_Messaging;
#endif
#ifdef HAVE_STRUCT_PPB_VAR
typedef struct PPB_Var PPB_Var;
#endif
#ifdef HAVE_STRUCT_PPB_URLLOADER
typedef struct PPB_URLLoader PPB_URLLoader;
#endif
#ifdef HAVE_STRUCT_PPB_URLREQUESTINFO
typedef struct PPB_URLRequestInfo PPB_URLRequestInfo;
#endif
#ifdef HAVE_STRUCT_PPB_URLRESPONSEINFO
typedef struct PPB_URLResponseInfo PPB_URLResponseInfo;
#endif
#ifdef HAVE_STRUCT_PPP_INSTANCE
typedef struct PPP_Instance PPP_Instance;
#endif
static PP_Module module_id = 0;
static PPB_GetInterface get_browser_interface = NULL;
static PPB_Core* core_interface = NULL;
static PPB_Messaging* messaging_interface = NULL;
static PPB_Var* var_interface = NULL;
static PPB_URLLoader* loader_interface = NULL;
static PPB_URLRequestInfo* request_interface = NULL;
static PPB_URLResponseInfo* response_interface = NULL;
static PPB_FileRef* fileref_interface = NULL;
static struct st_table* instance_data = NULL;
static VALUE instance_table = Qundef;
static PP_Instance current_instance = 0;
static void inst_mark(void *const ptr);
static void inst_free(void *const ptr);
static size_t inst_memsize(void *const ptr);
static const rb_data_type_t pepper_instance_data_type = {
"PepperInstance",
{ inst_mark, inst_free, inst_memsize }
};
struct PepperInstance {
PP_Instance instance;
PP_Resource url_loader;
VALUE self;
void* async_call_args;
union {
int32_t as_int;
const char* as_str;
VALUE as_value;
} async_call_result;
char buf[1000];
pthread_t th;
pthread_mutex_t mutex;
pthread_cond_t cond;
};
struct PepperInstance*
pruby_get_instance(PP_Instance instance)
{
VALUE self = rb_hash_aref(instance_table, INT2FIX(instance));
if (RTEST(self)) {
struct PepperInstance *inst;
TypedData_Get_Struct(self, struct PepperInstance, &pepper_instance_data_type, inst);
return inst;
}
else {
return NULL;
}
}
#define GET_PEPPER_INSTANCE() (pruby_get_instance(current_instance))
struct PepperInstance*
pruby_register_instance(PP_Instance instance)
{
VALUE obj;
struct PepperInstance *data;
obj = TypedData_Make_Struct(rb_cData, struct PepperInstance, &pepper_instance_data_type, data);
data->self = obj;
data->instance = instance;
data->url_loader = 0;
pthread_mutex_init(&data->mutex, NULL);
pthread_cond_init(&data->cond, NULL);
rb_hash_aset(instance_table, INT2FIX(instance), obj);
return data;
}
int
pruby_unregister_instance(PP_Instance instance)
{
VALUE inst = rb_hash_delete(instance_table, INT2FIX(instance));
return RTEST(inst);
}
static void
inst_mark(void *const ptr)
{
RUBY_MARK_ENTER("PepperInstance"0);
if (ptr) {
const struct PepperInstance* inst = (struct PepperInstance*)ptr;
RUBY_MARK_UNLESS_NULL(inst->async_call_result.as_value);
}
RUBY_MARK_LEAVE("PepperInstance"0);
}
static void
inst_free(void *const ptr)
{
ruby_xfree(ptr);
}
static size_t
inst_memsize(void *const ptr)
{
if (ptr) {
const struct PepperInstance* inst = (struct PepperInstance*)ptr;
return sizeof(*inst);
} else {
return 0;
}
}
void
pruby_async_return_int(void* data, int32_t result)
{
struct PepperInstance* const instance = (struct PepperInstance*)data;
instance->async_call_result.as_int = result;
if (pthread_cond_signal(&instance->cond)) {
perror("pepper-ruby:pthread_cond_signal");
}
}
void
pruby_async_return_str(void* data, const char *result)
{
struct PepperInstance* const instance = (struct PepperInstance*)data;
instance->async_call_result.as_str = result;
if (pthread_cond_signal(&instance->cond)) {
perror("pepper-ruby:pthread_cond_signal");
}
}
void
pruby_async_return_value(void* data, VALUE value)
{
struct PepperInstance* const instance = (struct PepperInstance*)data;
instance->async_call_result.as_value = value;
if (pthread_cond_signal(&instance->cond)) {
perror("pepper-ruby:pthread_cond_signal");
}
}
static struct PP_Var
pruby_cstr_to_var(const char* str)
{
#ifndef PPB_VAR_INTERFACE_1_1
if (var_interface != NULL)
return var_interface->VarFromUtf8(module_id, str, strlen(str));
return PP_MakeUndefined();
#else
return var_interface->VarFromUtf8(str, strlen(str));
#endif
}
static char*
pruby_var_to_cstr(struct PP_Var var)
{
uint32_t len = 0;
if (var_interface != NULL) {
const char* var_c_str = var_interface->VarToUtf8(var, &len);
if (len > 0) {
char* c_str = (char*)malloc(len + 1);
memcpy(c_str, var_c_str, len);
c_str[len] = '\0';
return c_str;
}
}
return NULL;
}
static struct PP_Var
pruby_str_to_var(volatile VALUE str)
{
if (!RB_TYPE_P(str, T_STRING)) {
fprintf(stderr, "[BUG] Unexpected object type: %x\n", TYPE(str));
exit(EXIT_FAILURE);
}
#ifndef PPB_VAR_INTERFACE_1_1
if (var_interface != NULL) {
return var_interface->VarFromUtf8(module_id, RSTRING_PTR(str), RSTRING_LEN(str));
}
#else
return var_interface->VarFromUtf8(RSTRING_PTR(str), RSTRING_LEN(str));
#endif
return PP_MakeUndefined();
}
static struct PP_Var
pruby_obj_to_var(volatile VALUE obj)
{
static const char* const error =
"throw 'Failed to convert the result to a JavaScript object';";
int state;
obj = rb_protect(&rb_obj_as_string, obj, &state);
if (!state) {
return pruby_str_to_var(obj);
}
else {
return pruby_cstr_to_var(error);
}
}
int
pruby_var_equal_to_cstr_p(struct PP_Var lhs, const char* rhs)
{
uint32_t len = 0;
if (var_interface == NULL) {
return 0;
}
else {
const char* const cstr = var_interface->VarToUtf8(lhs, &len);
return strncmp(cstr, rhs, len) == 0;
}
}
int
pruby_var_prefixed_p(struct PP_Var var, const char* prefix)
{
uint32_t len = 0;
if (var_interface == NULL) {
return 0;
}
else {
const char* const cstr = var_interface->VarToUtf8(var, &len);
const size_t prefix_len = strlen(prefix);
return len >= prefix_len && memcmp(cstr, prefix, len) == 0;
}
}
void
pruby_post_cstr(void* data)
{
struct PepperInstance* const instance = (struct PepperInstance*)data;
const char* const msg = (const char*)instance->async_call_args;
messaging_interface->PostMessage(instance->instance,
pruby_cstr_to_var(msg));
}
void
pruby_post_value(void* data)
{
struct PepperInstance* const instance = (struct PepperInstance*)data;
volatile VALUE value = (VALUE)instance->async_call_args;
messaging_interface->PostMessage(instance->instance, pruby_obj_to_var(value));
}
static void
init_loadpath(void)
{
ruby_incpush("lib/ruby/"RUBY_LIB_VERSION);
ruby_incpush("lib/ruby/"RUBY_LIB_VERSION"/"RUBY_PLATFORM);
ruby_incpush(".");
}
static VALUE
init_libraries_internal(VALUE unused)
{
extern void Init_enc();
extern void Init_ext();
init_loadpath();
Init_enc();
Init_ext();
return Qnil;
}
static void*
init_libraries(void* data)
{
int state;
struct PepperInstance* const instance = (struct PepperInstance*)data;
current_instance = instance->instance;
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