src/free_atexit.h

   1 /* This tiny library is to assist cleaning up harmless memory leaks caused
   2    by (growing) buffers allocated in static variables in functions. The
   3    library provides leaky_ prefixed variants of the common allocation
   4    routines. These wrappers will remember all pointers they return and
   5    can free all memory used, at the end of the applocation.
   6 */
   7
   8 #include <stdlib.h>
   9
  10 #ifdef NDEBUG
  11 #define leaky_init()
  12 #define leaky_uninit()
  13 #define leaky_malloc(size) malloc(size)
  14 #define leaky_calloc(nmemb, size) calloc(nmemb, size)
  15 #define leaky_realloc(old_memory, size) realloc(old_memory, size)
  16 #else
  17
  18 /* set up atexit() hook - can be avoided if leaky_uninit() is called by hand */
  19 void leaky_init (void);
  20
  21 /* free all allocations */
  22 void leaky_uninit (void);
  23
  24 /* allocate memory, remember the pointer and free it after exit from the application */
  25 void *leaky_malloc (size_t size);
  26
  27 /* same as leaky_malloc but this one wraps calloc() */
  28 void *leaky_calloc (size_t nmemb, size_t size);
  29
  30 /* reallocate memory, remember the new pointer and free it after exit from the application */
  31 void *leaky_realloc (void* old_memory, size_t size);
  32
  33
  34 #endif