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lavu: define FF_MEMORY_POISON and use it

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Allow single-place definition of constant used to fill poisoned memory.
This commit is contained in:
Stefano Sabatini 2013-05-12 13:37:33 +02:00
parent e70e2583d0
commit 84be806982
3 changed files with 4 additions and 2 deletions
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2
libavutil/buffer.c
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@ -288,7 +288,7 @@ static void pool_release_buffer(void *opaque, uint8_t *data)
AVBufferPool *pool = buf->pool; AVBufferPool *pool = buf->pool;
if(CONFIG_MEMORY_POISONING) if(CONFIG_MEMORY_POISONING)
memset(buf->data, 0x2a, pool->size); memset(buf->data, FF_MEMORY_POISON, pool->size);
add_to_pool(buf); add_to_pool(buf);
if (!avpriv_atomic_int_add_and_fetch(&pool->refcount, -1)) if (!avpriv_atomic_int_add_and_fetch(&pool->refcount, -1))

2
libavutil/internal.h
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@ -66,6 +66,8 @@
# define INT_BIT (CHAR_BIT * sizeof(int)) # define INT_BIT (CHAR_BIT * sizeof(int))
#endif #endif
#define FF_MEMORY_POISON 0x2a
// Some broken preprocessors need a second expansion // Some broken preprocessors need a second expansion
// to be forced to tokenize __VA_ARGS__ // to be forced to tokenize __VA_ARGS__
#define E1(x) x #define E1(x) x

2
libavutil/mem.c
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@ -133,7 +133,7 @@ void *av_malloc(size_t size)
} }
#if CONFIG_MEMORY_POISONING #if CONFIG_MEMORY_POISONING
if (ptr) if (ptr)
memset(ptr, 0x2a, size); memset(ptr, FF_MEMORY_POISON, size);
#endif #endif
return ptr; return ptr;
} }