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/*
* test_custom_malloc.c
*
* Test libdeflate_set_memory_allocator().
* Also test injecting allocation failures.
*/
#include "test_util.h"
static int malloc_count = 0;
static int free_count = 0;
static void *do_malloc(size_t size)
{
malloc_count++;
return malloc(size);
}
static void *do_fail_malloc(size_t size)
{
malloc_count++;
return NULL;
}
static void do_free(void *ptr)
{
free_count++;
free(ptr);
}
int
tmain(int argc, tchar *argv[])
{
int level;
struct libdeflate_compressor *c;
struct libdeflate_decompressor *d;
begin_program(argv);
/* Test that the custom allocator is actually used when requested. */
libdeflate_set_memory_allocator(do_malloc, do_free);
ASSERT(malloc_count == 0);
ASSERT(free_count == 0);
for (level = 0; level <= 12; level++) {
malloc_count = free_count = 0;
c = libdeflate_alloc_compressor(level);
ASSERT(c != NULL);
ASSERT(malloc_count == 1);
ASSERT(free_count == 0);
libdeflate_free_compressor(c);
ASSERT(malloc_count == 1);
ASSERT(free_count == 1);
}
malloc_count = free_count = 0;
d = libdeflate_alloc_decompressor();
ASSERT(d != NULL);
ASSERT(malloc_count == 1);
ASSERT(free_count == 0);
libdeflate_free_decompressor(d);
ASSERT(malloc_count == 1);
ASSERT(free_count == 1);
/* As long as we're here, also test injecting allocation failures. */
libdeflate_set_memory_allocator(do_fail_malloc, do_free);
for (level = 0; level <= 12; level++) {
malloc_count = free_count = 0;
c = libdeflate_alloc_compressor(level);
ASSERT(c == NULL);
ASSERT(malloc_count == 1);
ASSERT(free_count == 0);
}
malloc_count = free_count = 0;
d = libdeflate_alloc_decompressor();
ASSERT(d == NULL);
ASSERT(malloc_count == 1);
ASSERT(free_count == 0);
return 0;
}
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