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more optional mem tracing

This commit is contained in:
John Cupitt 2018-03-20 12:40:40 +00:00
parent c5bf128e39
commit aaac2ad957
1 changed files with 19 additions and 9 deletions
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28
libvips/iofuncs/memory.c
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@ -94,6 +94,10 @@
#define DEBUG
*/
/* Track malloc/free and open/close.
#define DEBUG_VERBOSE
*/
#ifdef DEBUG
# warning DEBUG on in libsrc/iofuncs/memory.c
#endif /*DEBUG*/
@ -237,16 +241,18 @@ vips_free( void *buf )
void
vips_tracked_free( void *s )
{
size_t size;
/* Keep the size of the alloc in the previous 16 bytes. Ensures
* alignment rules are kept.
*/
s = (void *) ((char*)s - 16);
size = *((size_t*)s);
void *start = (void *) ((char *) s - 16);
size_t size = *((size_t *) start);
g_mutex_lock( vips_tracked_mutex );
#ifdef DEBUG_VERBOSE
printf( "vips_tracked_free: %p, %zd bytes\n", s, size );
#endif /*DEBUG_VERBOSE*/
if( vips_tracked_allocs <= 0 )
g_warning( "%s", _( "vips_free: too many frees" ) );
if( vips_tracked_mem < size )
@ -257,7 +263,7 @@ vips_tracked_free( void *s )
g_mutex_unlock( vips_tracked_mutex );
g_free( s );
g_free( start );
VIPS_GATE_FREE( size );
}
@ -330,6 +336,10 @@ vips_tracked_malloc( size_t size )
vips_tracked_mem_highwater = vips_tracked_mem;
vips_tracked_allocs += 1;
#ifdef DEBUG_VERBOSE
printf( "vips_tracked_malloc: %p, %zd bytes\n", buf, size );
#endif /*DEBUG_VERBOSE*/
g_mutex_unlock( vips_tracked_mutex );
VIPS_GATE_MALLOC( size );
@ -376,10 +386,10 @@ vips_tracked_open( const char *pathname, int flags, ... )
g_mutex_lock( vips_tracked_mutex );
vips_tracked_files += 1;
#ifdef DEBUG
#ifdef DEBUG_VERBOSE
printf( "vips_tracked_open: %s = %d (%d)\n",
pathname, fd, vips_tracked_files );
#endif /*DEBUG*/
#endif /*DEBUG_VERBOSE*/
g_mutex_unlock( vips_tracked_mutex );
@ -411,9 +421,9 @@ vips_tracked_close( int fd )
g_assert( vips_tracked_files > 0 );
vips_tracked_files -= 1;
#ifdef DEBUG
#ifdef DEBUG_VERBOSE
printf( "vips_tracked_close: %d (%d)\n", fd, vips_tracked_files );
#endif /*DEBUG*/
#endif /*DEBUG_VERBOSE*/
g_mutex_unlock( vips_tracked_mutex );