*
* Memory debugger (body).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
#include FT_CONFIG_STANDARD_LIBRARY_H
- FT_BASE_DEF( const char* ) _ft_debug_file = NULL;
- FT_BASE_DEF( long ) _ft_debug_lineno = 0;
+ FT_BASE_DEF( const char* ) ft_debug_file_ = NULL;
+ FT_BASE_DEF( long ) ft_debug_lineno_ = 0;
extern void
FT_DumpMemory( FT_Memory memory );
}
- static FT_MemTable
- ft_mem_table_new( FT_Memory memory )
- {
- FT_MemTable table;
-
-
- table = (FT_MemTable)memory->alloc( memory, sizeof ( *table ) );
- if ( !table )
- goto Exit;
-
- FT_ZERO( table );
-
- table->size = FT_MEM_SIZE_MIN;
- table->nodes = 0;
-
- table->memory = memory;
-
- table->memory_user = memory->user;
-
- table->alloc = memory->alloc;
- table->realloc = memory->realloc;
- table->free = memory->free;
-
- table->buckets = (FT_MemNode *)
- memory->alloc(
- memory,
- table->size * (FT_Long)sizeof ( FT_MemNode ) );
- if ( table->buckets )
- FT_ARRAY_ZERO( table->buckets, table->size );
- else
- {
- memory->free( memory, table );
- table = NULL;
- }
-
- Exit:
- return table;
- }
-
-
static void
ft_mem_table_destroy( FT_MemTable table )
{
FT_Long leaks = 0;
- FT_DumpMemory( table->memory );
-
/* remove all blocks from the table, revealing leaked ones */
for ( i = 0; i < table->size; i++ )
{
printf( "FreeType: maximum memory footprint = %ld\n",
table->alloc_max );
- ft_mem_table_free( table, table );
-
if ( leak_count > 0 )
ft_mem_debug_panic(
"FreeType: %ld bytes of memory leaked in %ld blocks\n",
/* cast to FT_PtrDist first since void* can be larger */
/* than FT_UInt32 and GCC 4.1.1 emits a warning */
- hash = (FT_UInt32)(FT_PtrDist)(void*)_ft_debug_file +
- (FT_UInt32)( 5 * _ft_debug_lineno );
+ hash = (FT_UInt32)(FT_PtrDist)(void*)ft_debug_file_ +
+ (FT_UInt32)( 5 * ft_debug_lineno_ );
pnode = &table->sources[hash % FT_MEM_SOURCE_BUCKETS];
for (;;)
if ( !node )
break;
- if ( node->file_name == _ft_debug_file &&
- node->line_no == _ft_debug_lineno )
+ if ( node->file_name == ft_debug_file_ &&
+ node->line_no == ft_debug_lineno_ )
goto Exit;
pnode = &node->link;
ft_mem_debug_panic(
"not enough memory to perform memory debugging\n" );
- node->file_name = _ft_debug_file;
- node->line_no = _ft_debug_lineno;
+ node->file_name = ft_debug_file_;
+ node->line_no = ft_debug_lineno_;
node->cur_blocks = 0;
node->max_blocks = 0;
"org=%s:%d new=%s:%d\n",
node->address, node->size,
FT_FILENAME( node->source->file_name ), node->source->line_no,
- FT_FILENAME( _ft_debug_file ), _ft_debug_lineno );
+ FT_FILENAME( ft_debug_file_ ), ft_debug_lineno_ );
}
}
" Block was allocated at (%s:%ld)\n"
" and released at (%s:%ld).",
address,
- FT_FILENAME( _ft_debug_file ), _ft_debug_lineno,
+ FT_FILENAME( ft_debug_file_ ), ft_debug_lineno_,
FT_FILENAME( node->source->file_name ), node->source->line_no,
FT_FILENAME( node->free_file_name ), node->free_line_no );
/* we simply invert the node's size to indicate that the node */
/* was freed. */
node->size = -node->size;
- node->free_file_name = _ft_debug_file;
- node->free_line_no = _ft_debug_lineno;
+ node->free_file_name = ft_debug_file_;
+ node->free_line_no = ft_debug_lineno_;
}
else
{
ft_mem_debug_panic(
"trying to free unknown block at %p in (%s:%ld)\n",
address,
- FT_FILENAME( _ft_debug_file ), _ft_debug_lineno );
+ FT_FILENAME( ft_debug_file_ ), ft_debug_lineno_ );
}
}
table->alloc_count++;
}
- _ft_debug_file = "<unknown>";
- _ft_debug_lineno = 0;
+ ft_debug_file_ = "<unknown>";
+ ft_debug_lineno_ = 0;
return (FT_Pointer)block;
}
if ( !block )
ft_mem_debug_panic( "trying to free NULL in (%s:%ld)",
- FT_FILENAME( _ft_debug_file ),
- _ft_debug_lineno );
+ FT_FILENAME( ft_debug_file_ ),
+ ft_debug_lineno_ );
ft_mem_table_remove( table, (FT_Byte*)block, 0 );
table->alloc_count--;
- _ft_debug_file = "<unknown>";
- _ft_debug_lineno = 0;
+ ft_debug_file_ = "<unknown>";
+ ft_debug_lineno_ = 0;
}
FT_Pointer new_block;
FT_Long delta;
- const char* file_name = FT_FILENAME( _ft_debug_file );
- FT_Long line_no = _ft_debug_lineno;
+ const char* file_name = FT_FILENAME( ft_debug_file_ );
+ FT_Long line_no = ft_debug_lineno_;
/* unlikely, but possible */
ft_mem_table_remove( table, (FT_Byte*)block, delta );
- _ft_debug_file = "<unknown>";
- _ft_debug_lineno = 0;
+ ft_debug_file_ = "<unknown>";
+ ft_debug_lineno_ = 0;
if ( !table->keep_alive )
ft_mem_table_free( table, block );
}
- extern FT_Int
+ extern void
ft_mem_debug_init( FT_Memory memory )
{
FT_MemTable table;
- FT_Int result = 0;
- if ( ft_getenv( "FT2_DEBUG_MEMORY" ) )
+ if ( !ft_getenv( "FT2_DEBUG_MEMORY" ) )
+ return;
+
+ table = (FT_MemTable)memory->alloc( memory, sizeof ( *table ) );
+
+ if ( table )
{
- table = ft_mem_table_new( memory );
- if ( table )
+ FT_ZERO( table );
+
+ table->memory = memory;
+ table->memory_user = memory->user;
+ table->alloc = memory->alloc;
+ table->realloc = memory->realloc;
+ table->free = memory->free;
+
+ ft_mem_table_resize( table );
+
+ if ( table->size )
{
const char* p;
if ( keep_alive > 0 )
table->keep_alive = 1;
}
-
- result = 1;
}
+ else
+ memory->free( memory, table );
}
- return result;
}
extern void
ft_mem_debug_done( FT_Memory memory )
{
- FT_MemTable table = (FT_MemTable)memory->user;
+ if ( memory->free == ft_mem_debug_free )
+ {
+ FT_MemTable table = (FT_MemTable)memory->user;
- if ( table )
- {
+ FT_DumpMemory( memory );
+
+ ft_mem_table_destroy( table );
+
memory->free = table->free;
memory->realloc = table->realloc;
memory->alloc = table->alloc;
+ memory->user = table->memory_user;
- ft_mem_table_destroy( table );
- memory->user = NULL;
+ memory->free( memory, table );
}
}
- static int
+ FT_COMPARE_DEF( int )
ft_mem_source_compare( const void* p1,
const void* p2 )
{
extern void
FT_DumpMemory( FT_Memory memory )
{
- FT_MemTable table = (FT_MemTable)memory->user;
-
-
- if ( table )
+ if ( memory->free == ft_mem_debug_free )
{
+ FT_MemTable table = (FT_MemTable)memory->user;
FT_MemSource* bucket = table->sources;
FT_MemSource* limit = bucket + FT_MEM_SOURCE_BUCKETS;
FT_MemSource* sources;
#else /* !FT_DEBUG_MEMORY */
/* ANSI C doesn't like empty source files */
- typedef int _debug_mem_dummy;
+ typedef int debug_mem_dummy_;
#endif /* !FT_DEBUG_MEMORY */
projects / platform / upstream / freetype2.git / blobdiff