diff options
| author | Eric Andersen <andersen@codepoet.org> | 2006-12-07 23:24:19 +0000 |
|---|---|---|
| committer | Eric Andersen <andersen@codepoet.org> | 2006-12-07 23:24:19 +0000 |
| commit | 275a4c4e6fd115a0eb4c7a15e9ac4a92414cd839 (patch) | |
| tree | e0e9abc0c1a61a6c1c99601caa7c9363e8910637 /libc/stdlib/malloc | |
| parent | 1478c2de052374c6356db5513749a144c13791b1 (diff) | |
Major cleanup of internal mutex locking. Be more consistant in how we do
things, and avoid potential deadlocks caused when a thread holding a uClibc
internal lock get canceled and terminates without releasing the lock. This
change also provides a single place, bits/uClibc_mutex.h, for thread libraries
to modify to change all instances of internal locking.
Diffstat (limited to 'libc/stdlib/malloc')
| -rw-r--r-- | libc/stdlib/malloc/heap.h | 8 | ||||
| -rw-r--r-- | libc/stdlib/malloc/malloc.h | 8 |
2 files changed, 8 insertions, 8 deletions
diff --git a/libc/stdlib/malloc/heap.h b/libc/stdlib/malloc/heap.h index b66b5ecef..ad891fafb 100644 --- a/libc/stdlib/malloc/heap.h +++ b/libc/stdlib/malloc/heap.h @@ -16,7 +16,7 @@ /* On multi-threaded systems, the heap includes a lock. */ #ifdef __UCLIBC_HAS_THREADS__ -# include <pthread.h> +# include <bits/uClibc_mutex.h> # define HEAP_USE_LOCKING #endif @@ -39,7 +39,7 @@ struct heap /* A lock that can be used by callers to control access to the heap. The heap code _does not_ use this lock, it's merely here for the convenience of users! */ - pthread_mutex_t lock; + __UCLIBC_MUTEX_TYPE lock; #endif }; @@ -135,8 +135,8 @@ extern void __heap_dump (struct heap *heap, const char *str); extern void __heap_check (struct heap *heap, const char *str); -#define __heap_lock(heap) __pthread_mutex_lock (&(heap)->lock) -#define __heap_unlock(heap) __pthread_mutex_unlock (&(heap)->lock) +#define __heap_lock(heap) __UCLIBC_MUTEX_LOCK (&(heap)->lock) +#define __heap_unlock(heap) __UCLIBC_MUTEX_UNLOCK (&(heap)->lock) /* Delete the free-area FA from HEAP. */ diff --git a/libc/stdlib/malloc/malloc.h b/libc/stdlib/malloc/malloc.h index b41c4b08e..177d8c236 100644 --- a/libc/stdlib/malloc/malloc.h +++ b/libc/stdlib/malloc/malloc.h @@ -125,11 +125,11 @@ extern int __malloc_mmb_debug; /* Locking for multithreaded apps. */ #ifdef __UCLIBC_HAS_THREADS__ -# include <pthread.h> +# include <bits/uClibc_mutex.h> # define MALLOC_USE_LOCKING -typedef pthread_mutex_t malloc_mutex_t; +typedef __UCLIBC_MUTEX_TYPE malloc_mutex_t; # define MALLOC_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER # ifdef MALLOC_USE_SBRK @@ -138,8 +138,8 @@ typedef pthread_mutex_t malloc_mutex_t; things will break if these multiple calls are interleaved with another thread's use of sbrk!). */ extern malloc_mutex_t __malloc_sbrk_lock; -# define __malloc_lock_sbrk() __pthread_mutex_lock (&__malloc_sbrk_lock) -# define __malloc_unlock_sbrk() __pthread_mutex_unlock (&__malloc_sbrk_lock) +# define __malloc_lock_sbrk() __UCLIBC_MUTEX_LOCK (&__malloc_sbrk_lock) +# define __malloc_unlock_sbrk() __UCLIBC_MUTEX_UNLOCK (&__malloc_sbrk_lock) # endif /* MALLOC_USE_SBRK */ #else /* !__UCLIBC_HAS_THREADS__ */ |