C++ (Cpp) rb_thread_shield_new示例

示例#1

文件： load.c 项目： scorpion007/ruby

static char *
load_lock(const char *ftptr)
{
    st_data_t data;
    st_table *loading_tbl = get_loading_table();

    if (!st_lookup(loading_tbl, (st_data_t)ftptr, &data)) {
	/* partial state */
	ftptr = ruby_strdup(ftptr);
	data = (st_data_t)rb_thread_shield_new();
	st_insert(loading_tbl, (st_data_t)ftptr, data);
	return (char *)ftptr;
    }
    else if (RB_TYPE_P((VALUE)data, T_IMEMO) && imemo_type((VALUE)data) == imemo_memo) {
	struct MEMO *memo = MEMO_CAST(data);
	void (*init)(void) = (void (*)(void))memo->u3.func;
	data = (st_data_t)rb_thread_shield_new();
	st_insert(loading_tbl, (st_data_t)ftptr, data);
	(*init)();
	return (char *)"";
    }
    if (RTEST(ruby_verbose)) {
	rb_warning("loading in progress, circular require considered harmful - %s", ftptr);
	rb_backtrace_print_to(rb_stderr);
    }
    switch (rb_thread_shield_wait((VALUE)data)) {
      case Qfalse:
	data = (st_data_t)ftptr;
	st_insert(loading_tbl, data, (st_data_t)rb_thread_shield_new());
	return 0;
      case Qnil:
	return 0;
    }
    return (char *)ftptr;
}

示例#2

static char *
load_lock(const char *ftptr)
{
    st_data_t data;
    st_table *loading_tbl = get_loading_table();

    if (!loading_tbl || !st_lookup(loading_tbl, (st_data_t)ftptr, &data)) {
	/* loading ruby library should be serialized. */
	if (!loading_tbl) {
	    GET_VM()->loading_table = loading_tbl = st_init_strtable();
	}
	/* partial state */
	ftptr = ruby_strdup(ftptr);
	data = (st_data_t)rb_thread_shield_new();
	st_insert(loading_tbl, (st_data_t)ftptr, data);
	return (char *)ftptr;
    }
    else if (RB_TYPE_P((VALUE)data, T_NODE) && nd_type((VALUE)data) == NODE_MEMO) {
	NODE *memo = RNODE(data);
	void (*init)(void) = (void (*)(void))memo->nd_cfnc;
	data = (st_data_t)rb_thread_shield_new();
	st_insert(loading_tbl, (st_data_t)ftptr, data);
	(*init)();
	return (char *)"";
    }
    if (RTEST(ruby_verbose)) {
	rb_warning("loading in progress, circular require considered harmful - %s", ftptr);
	rb_backtrace_print_to(rb_stderr);
    }
    switch (rb_thread_shield_wait((VALUE)data)) {
      case Qfalse:
	data = (st_data_t)ftptr;
	st_insert(loading_tbl, data, (st_data_t)rb_thread_shield_new());
	return 0;
      case Qnil:
	return 0;
    }
    return (char *)ftptr;
}