* include/freetype/internal/ftmemory.h, src/base/ftdbgmem.c: modified

the debugging memory manager to report the location (source file name
        + line number) where leaked memory blocks are allocated in the source
        file..  funny, isn't it ??

ChangeLog

@@ -1,5 +1,10 @@
 2001-10-22  David Turner  <david@freetype.org>
 
+        * include/freetype/internal/ftmemory.h, src/base/ftdbgmem.c: modified
+        the debugging memory manager to report the location (source file name
+        + line number) where leaked memory blocks are allocated in the source
+        file..  funny, isn't it ??
+
 	* src/base/ftdbgmem.c: new debugging memory manager. You must define
 	the FT_DEBUG_MEMORY macro in "ftoption.h" to enable it. It will record
 	every memory block allocated and report simple errors like memory

docs/TODO

@@ -5,6 +5,3 @@ Here is a list of items that need to be addressed in FreeType 2; they are
 not exactly bugs, but should be considered though:
 
 * Add synthesized Unicode charmap processing to the CFF driver.
-
-* Add the new auto-hinting source code / native Type1/Type2 hinter
-  to the source code.

include/freetype/internal/ftmemory.h

@@ -55,6 +55,16 @@ FT_BEGIN_HEADER
   /*************************************************************************/
   /*************************************************************************/
 
+#ifdef FT_DEBUG_MEMORY
+
+  FT_BASE( FT_Error )
+  FT_Alloc_Debug( FT_Memory    memory,
+                  FT_Long      size,
+                  void*       *P,
+                  const char*  file_name,
+                  FT_Long      line_no );
+#endif
+
 
   /*************************************************************************/
   /*                                                                       */
@@ -83,7 +93,6 @@ FT_BEGIN_HEADER
             FT_Long    size,
             void*     *P );
 
-
   /*************************************************************************/
   /*                                                                       */
   /* <Function>                                                            */
@@ -159,6 +168,7 @@ FT_BEGIN_HEADER
 #define MEM_Move( dest, source, count )  memmove( dest, source, count )
 
 
+
   /*************************************************************************/
   /*                                                                       */
   /* We now support closures to produce completely reentrant code.  This   */
@@ -172,12 +182,26 @@ FT_BEGIN_HEADER
   /* ALLOC_ARRAY() now use an implicit variable, `memory'.  It must be     */
   /* defined at all locations where a memory operation is queried.         */
   /*                                                                       */
-#define MEM_Alloc( _pointer_, _size_ )                     \
-          FT_Alloc( memory, _size_, (void**)&(_pointer_) )
 
-#define MEM_Alloc_Array( _pointer_, _count_, _type_ )    \
-          FT_Alloc( memory, (_count_)*sizeof ( _type_ ), \
-                    (void**)&(_pointer_) )
+#ifdef FT_DEBUG_MEMORY
+
+#  define MEM_Alloc( _pointer_, _size_ )                     \
+            FT_Alloc_Debug( memory, _size_, (void**)&(_pointer_), __FILE__, __LINE__ )
+
+#  define MEM_Alloc_Array( _pointer_, _count_, _type_ )    \
+            FT_Alloc_Debug( memory, (_count_)*sizeof ( _type_ ), \
+                            (void**)&(_pointer_), __FILE__, __LINE__ )
+  
+#else  /* !FT_DEBUG_MEMORY */
+
+#  define MEM_Alloc( _pointer_, _size_ )                     \
+            FT_Alloc( memory, _size_, (void**)&(_pointer_) )
+
+#  define MEM_Alloc_Array( _pointer_, _count_, _type_ )    \
+            FT_Alloc( memory, (_count_)*sizeof ( _type_ ), \
+                      (void**)&(_pointer_) )
+
+#endif /* !FT_DEBUG_MEMORY */
 
 #define MEM_Realloc( _pointer_, _current_, _size_ )                     \
           FT_Realloc( memory, _current_, _size_, (void**)&(_pointer_) )

src/base/ftdbgmem.c

@@ -20,9 +20,13 @@
 
   typedef struct FT_MemNodeRec_
   {
-    FT_Byte*    address;
-    FT_Long     size;     /* < 0 if the block was freed */
-    FT_MemNode  link;
+    FT_Byte*     address;
+    FT_Long      size;     /* < 0 if the block was freed */
+    
+    const char*  file_name;
+    FT_Long      line_no;
+
+    FT_MemNode   link;
   
   } FT_MemNodeRec;
 
@@ -36,6 +40,9 @@
     FT_ULong     alloc_total;
     FT_ULong     alloc_current;
   
+    const char*  file_name;
+    FT_Long      line_no;
+  
   } FT_MemTableRec;
 
 #define  FT_MEM_SIZE_MIN   7
@@ -160,40 +167,6 @@
   }
 
 
-  static FT_MemNode
-  ft_mem_node_new( FT_MemTable  table,
-                   FT_Pointer   address,
-                   FT_ULong     size )
-  {
-    FT_MemNode  node;
-
-    node = malloc( sizeof(*node) );
-    if ( node == NULL )
-      ft_mem_debug_panic( "not enough memory to run memory tests" );
-    
-    node->link    = NULL;
-    node->address = address;
-    node->size    = size;
-
-    return node;
-  }
-
-
-  static void
-  ft_mem_node_destroy( FT_MemNode   node,
-                        FT_MemTable  table )
-  {
-    if (node)
-    {
-      node->address = NULL;
-      node->size    = 0;
-      node->link    = NULL;
-
-      free( node );
-    }
-  }
-
-
 
   static FT_MemTable
   ft_mem_table_new( void )
@@ -244,8 +217,10 @@
           
           if ( node->size > 0 )
           {
-            printf( "leaked memory block at address %p, size %ld\n",
-                     node->address, node->size );
+            printf( "leaked memory block at address %p, size %8ld (%s:%d)\n",
+                     node->address, node->size,
+                     node->file_name ? node->file_name : "unknown_file",
+                     node->line_no );
                      
             leak_count++;
             leaks += node->size;
@@ -337,9 +312,13 @@
       if ( node == NULL )
         ft_mem_debug_panic( "not enough memory to run memory tests" );
 
-      node->address = address;
-      node->size    = size;
-      node->link    = pnode[0];
+      node->address   = address;
+      node->size      = size;
+
+      node->file_name = table->file_name;
+      node->line_no   = table->line_no;
+
+      node->link      = pnode[0];
 
       pnode[0] = node;
       table->nodes++;
@@ -494,6 +473,26 @@
     }
   }
 
+
+  FT_BASE_DEF( FT_Error )
+  FT_Alloc_Debug( FT_Memory    memory,
+                  FT_Long      size,
+                  void*       *P,
+                  const char*  file_name,
+                  FT_Long      line_no )
+  {
+    FT_MemTable  table = memory->user;
+    
+    if ( table )
+    {
+      table->file_name = file_name;
+      table->line_no   = line_no;
+    }
+    return FT_Alloc( memory, size, P );
+  }            
+
+
+
 #else  /* !FT_DEBUG_MEMORY */
  
  /* ansi C doesn't like empty source files */