File indexing completed on 2025-02-02 04:25:58

 /* Copyright 2015 the unarr project authors (see AUTHORS file).
    License: LGPLv3 */
 
 #include <stdlib.h>
 #include <stdint.h>
 #include <string.h>
 
 typedef void *(* custom_malloc_fn)(void *opaque, size_t size);
 typedef void (* custom_free_fn)(void *opaque, void *ptr);
 
 static void *default_malloc(void *opaque, size_t size) { (void)opaque; return malloc(size); }
 static void default_free(void *opaque, void *ptr) { (void)opaque; free(ptr); }
 
 static struct {
     custom_malloc_fn malloc;
     custom_free_fn free;
     void *opaque;
 } gAllocator = {
     default_malloc,
     default_free,
     NULL,
 };
 
 void *ar_malloc(size_t size)
 {
     return gAllocator.malloc(gAllocator.opaque, size);
 }
 
 void *ar_calloc(size_t count, size_t size)
 {
     void *ptr = NULL;
     if (size <= SIZE_MAX / count)
         ptr = ar_malloc(count * size);
     if (ptr)
         memset(ptr, 0, count * size);
     return ptr;
 }
 
 void ar_free(void *ptr)
 {
     gAllocator.free(gAllocator.opaque, ptr);
 }
 
 void ar_set_custom_allocator(custom_malloc_fn custom_malloc, custom_free_fn custom_free, void *opaque)
 {
     gAllocator.malloc = custom_malloc ? custom_malloc : default_malloc;
     gAllocator.free = custom_free ? custom_free : default_free;
     gAllocator.opaque = opaque;
 }