Differences From Artifact [2d30e1cc90]:
- File src/runtime/threading.m — part of check-in [555445ce0a] at 2012-04-21 10:56:21 on branch runtime — Remove useless thread-checking. (user: js, size: 1819) [annotate] [blame] [check-ins using]
To Artifact [92014702e9]:
- File
src/runtime/threading.m
— part of check-in
[51b73c821c]
at
2012-04-22 16:05:21
on branch runtime
— Safer way to create the global mutex.
__attribute__((constructor)) might not have been called when the runtime
is first used. However, the first usage of the runtime is always
single-threaded, so it is safe to do it this way. (user: js, size: 1906) [annotate] [blame] [check-ins using] [more...]
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#include <stdio.h>
#include <stdlib.h>
#import "runtime.h"
#import "runtime-private.h"
static objc_mutex_t global_mutex;
BOOL
objc_mutex_new(objc_mutex_t *mutex)
{
if (!of_mutex_new(&mutex->mutex ))
return NO;
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#include <stdio.h>
#include <stdlib.h>
#import "runtime.h"
#import "runtime-private.h"
static objc_mutex_t global_mutex;
static BOOL global_mutex_init = NO;
BOOL
objc_mutex_new(objc_mutex_t *mutex)
{
if (!of_mutex_new(&mutex->mutex ))
return NO;
|
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BOOL
objc_mutex_free(objc_mutex_t *mutex)
{
return of_mutex_free(&mutex->mutex);
}
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BOOL
objc_mutex_free(objc_mutex_t *mutex)
{
return of_mutex_free(&mutex->mutex);
}
static void
objc_global_mutex_new(void)
{
if (!objc_mutex_new(&global_mutex))
ERROR("Failed to create global mutex!");
global_mutex_init = YES;
}
void
objc_global_mutex_lock(void)
{
if (!global_mutex_init)
objc_global_mutex_new();
if (!objc_mutex_lock(&global_mutex))
ERROR("Failed to lock global mutex!");
}
void
objc_global_mutex_unlock(void)
{
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