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authorEric Andersen <andersen@codepoet.org>2006-12-11 05:28:24 +0000
committerEric Andersen <andersen@codepoet.org>2006-12-11 05:28:24 +0000
commit29252f8d07c23f00a1590a576ed110573cebacd2 (patch)
tree6d24ff054643106c04556125013537ba254b95c4
parent7e465f90d545ea0b75372aea664804c6cd39ea14 (diff)
mostly revert the locking changes for 'malloc', as the implementation
does not easily lend itself to becoming complete pthread cancelation safe without first investing in some deep and serious thought... The other malloc implementations are pthread cancelation safe, and this one is mostly used for uClinux, where the lack is at least less likely to be a common problem.
-rw-r--r--libc/stdlib/malloc/heap.h9
-rw-r--r--libc/stdlib/malloc/malloc.h9
2 files changed, 10 insertions, 8 deletions
diff --git a/libc/stdlib/malloc/heap.h b/libc/stdlib/malloc/heap.h
index ad891fafb..23358d988 100644
--- a/libc/stdlib/malloc/heap.h
+++ b/libc/stdlib/malloc/heap.h
@@ -16,7 +16,8 @@
/* On multi-threaded systems, the heap includes a lock. */
#ifdef __UCLIBC_HAS_THREADS__
-# include <bits/uClibc_mutex.h>
+# include <pthread.h>
+# include <bits/uClibc_pthread.h>
# define HEAP_USE_LOCKING
#endif
@@ -39,7 +40,7 @@ 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! */
- __UCLIBC_MUTEX_TYPE lock;
+ pthread_mutex_t lock;
#endif
};
@@ -135,8 +136,8 @@ extern void __heap_dump (struct heap *heap, const char *str);
extern void __heap_check (struct heap *heap, const char *str);
-#define __heap_lock(heap) __UCLIBC_MUTEX_LOCK (&(heap)->lock)
-#define __heap_unlock(heap) __UCLIBC_MUTEX_UNLOCK (&(heap)->lock)
+#define __heap_lock(heap) __pthread_mutex_lock (&(heap)->lock)
+#define __heap_unlock(heap) __pthread_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 177d8c236..747e8bf9e 100644
--- a/libc/stdlib/malloc/malloc.h
+++ b/libc/stdlib/malloc/malloc.h
@@ -125,11 +125,12 @@ extern int __malloc_mmb_debug;
/* Locking for multithreaded apps. */
#ifdef __UCLIBC_HAS_THREADS__
-# include <bits/uClibc_mutex.h>
+# include <pthread.h>
+# include <bits/uClibc_pthread.h>
# define MALLOC_USE_LOCKING
-typedef __UCLIBC_MUTEX_TYPE malloc_mutex_t;
+typedef pthread_mutex_t malloc_mutex_t;
# define MALLOC_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
# ifdef MALLOC_USE_SBRK
@@ -138,8 +139,8 @@ typedef __UCLIBC_MUTEX_TYPE 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() __UCLIBC_MUTEX_LOCK (&__malloc_sbrk_lock)
-# define __malloc_unlock_sbrk() __UCLIBC_MUTEX_UNLOCK (&__malloc_sbrk_lock)
+# define __malloc_lock_sbrk() __pthread_mutex_lock (&__malloc_sbrk_lock)
+# define __malloc_unlock_sbrk() __pthread_mutex_unlock (&__malloc_sbrk_lock)
# endif /* MALLOC_USE_SBRK */
#else /* !__UCLIBC_HAS_THREADS__ */