ObjFW  Check-in [5bd604a8f8]

Overview
Comment:Fix recursive locking.
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SHA3-256: 5bd604a8f893370103a82485f89549bcc44ac5c19c8644e929415fecc955592e
User & Date: js on 2009-06-01 01:31:31
Other Links: manifest | tags
Context
2009-06-01
01:44
It's far more likely the lock we search is at the end.
Additionally, add tests for objc_sync_*.
check-in: 4b03ccfe1f user: js tags: trunk
01:31
Fix recursive locking. check-in: 5bd604a8f8 user: js tags: trunk
01:15
Add --all to objfw-config.in. check-in: c63017b1f3 user: js tags: trunk
Changes

Modified src/objc_sync.m from [9f958f8552] to [469f559547].

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 * the packaging of this file.
 */

#include "config.h"

#include <stddef.h>
#include <stdlib.h>


#ifndef _WIN32
#include <pthread.h>
#endif

#import <objc/objc.h>








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 * the packaging of this file.
 */

#include "config.h"

#include <stddef.h>
#include <stdlib.h>
#include <assert.h>

#ifndef _WIN32
#include <pthread.h>
#endif

#import <objc/objc.h>

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	if (!mutex_lock(&mutex))
		return 1;

	for (i = 0; i < num_locks; i++) {
		if (locks[i].obj == obj) {
			if (thread_is_current(locks[i].thread))
				locks[i].recursion++;
			else







				if (!mutex_lock(&locks[i].mutex)) {
					mutex_unlock(&mutex);
					return 1;
				}







			locks[i].count++;


			if (!mutex_unlock(&mutex))
				return 1;

			return 0;
		}
	}







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	if (!mutex_lock(&mutex))
		return 1;

	for (i = 0; i < num_locks; i++) {
		if (locks[i].obj == obj) {
			if (thread_is_current(locks[i].thread))
				locks[i].recursion++;
			else {
				/* Make sure objc_sync_exit doesn't free it */
				locks[i].count++;

				/* Unlock so objc_sync_exit can return */
				if (!mutex_unlock(&mutex))
					return 1;

				if (!mutex_lock(&locks[i].mutex)) {
					mutex_unlock(&mutex);
					return 1;
				}

				if (!mutex_lock(&mutex))
					return 1;

				assert(locks[i].recursion == 0);

				/* Update lock's active thread */
				locks[i].thread = thread_current();
			}

			if (!mutex_unlock(&mutex))
				return 1;

			return 0;
		}
	}
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				mutex_unlock(&mutex);
				return 1;
			}

			locks[i].count--;

			if (locks[i].count == 0) {
				struct locks_s *new_locks;

				if (!mutex_free(&locks[i].mutex)) {
					mutex_unlock(&mutex);
					return 1;
				}

				num_locks--;
				locks[i] = locks[num_locks];




				if ((new_locks = realloc(locks, (num_locks) *
				    sizeof(struct locks_s))) == NULL) {

					mutex_unlock(&mutex);
					return 1;
				}

				locks = new_locks;
			}








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				mutex_unlock(&mutex);
				return 1;
			}

			locks[i].count--;

			if (locks[i].count == 0) {
				struct locks_s *new_locks = NULL;

				if (!mutex_free(&locks[i].mutex)) {
					mutex_unlock(&mutex);
					return 1;
				}

				num_locks--;
				locks[i] = locks[num_locks];

				if (num_locks == 0) {
					free(locks);
					new_locks = NULL;
				} else if ((new_locks = realloc(locks,
				    num_locks * sizeof(struct locks_s))) ==
				    NULL) {
					mutex_unlock(&mutex);
					return 1;
				}

				locks = new_locks;
			}