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#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#import "runtime.h"
#import "runtime-private.h"
#import "threading.h"
struct lock_s {
id object;
int count;
of_rmutex_t rmutex;
struct lock_s *next;
} *locks = NULL;
static of_mutex_t mutex;
static void __attribute__((constructor))
init(void)
{
if (!of_mutex_new(&mutex))
OBJC_ERROR("Failed to create mutex!")
}
int
objc_sync_enter(id object)
{
struct lock_s *lock;
if (!of_mutex_lock(&mutex))
OBJC_ERROR("Failed to lock mutex!");
/* Look if we already have a lock */
for (lock = locks; lock != NULL; lock = lock->next) {
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#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#import "runtime.h"
#import "runtime-private.h"
#ifdef OF_THREADS
# import "threading.h"
struct lock_s {
id object;
int count;
of_rmutex_t rmutex;
struct lock_s *next;
} *locks = NULL;
static of_mutex_t mutex;
static void __attribute__((constructor))
init(void)
{
if (!of_mutex_new(&mutex))
OBJC_ERROR("Failed to create mutex!")
}
#endif
int
objc_sync_enter(id object)
{
#ifdef OF_THREADS
struct lock_s *lock;
if (!of_mutex_lock(&mutex))
OBJC_ERROR("Failed to lock mutex!");
/* Look if we already have a lock */
for (lock = locks; lock != NULL; lock = lock->next) {
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locks = lock;
if (!of_mutex_unlock(&mutex))
OBJC_ERROR("Failed to unlock mutex!");
if (!of_rmutex_lock(&lock->rmutex))
OBJC_ERROR("Failed to lock mutex!");
return 0;
}
int
objc_sync_exit(id object)
{
struct lock_s *lock, *last = NULL;
if (!of_mutex_lock(&mutex))
OBJC_ERROR("Failed to lock mutex!");
for (lock = locks; lock != NULL; lock = lock->next) {
if (lock->object != object) {
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locks = lock;
if (!of_mutex_unlock(&mutex))
OBJC_ERROR("Failed to unlock mutex!");
if (!of_rmutex_lock(&lock->rmutex))
OBJC_ERROR("Failed to lock mutex!");
#endif
return 0;
}
int
objc_sync_exit(id object)
{
#ifdef OF_THREADS
struct lock_s *lock, *last = NULL;
if (!of_mutex_lock(&mutex))
OBJC_ERROR("Failed to lock mutex!");
for (lock = locks; lock != NULL; lock = lock->next) {
if (lock->object != object) {
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if (!of_mutex_unlock(&mutex))
OBJC_ERROR("Failed to unlock mutex!");
return 0;
}
OBJC_ERROR("objc_sync_exit() was called for an object not locked!");
}
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if (!of_mutex_unlock(&mutex))
OBJC_ERROR("Failed to unlock mutex!");
return 0;
}
OBJC_ERROR("objc_sync_exit() was called for an object not locked!");
#else
return 0;
#endif
}
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