/*
* A simple test of realloc
*/
static void test_realloc(void)
{
void *p1, *p2, *p3, *p4;
size_t i;
int sc;
bool malloc_walk_ok;
/* Test growing reallocation "in place" */
p1 = malloc(1);
for (i=2 ; i<2048 ; i++) {
p2 = realloc(p1, i);
if (p2 != p1)
printf( "realloc - failed grow in place: "
"%p != realloc(%p,%zu)\n", p1, p2, i);
p1 = p2;
}
free(p1);
/* Test shrinking reallocation "in place" */
p1 = malloc(2048);
for (i=2047 ; i>=1; i--) {
p2 = realloc(p1, i);
if (p2 != p1)
printf( "realloc - failed shrink in place: "
"%p != realloc(%p,%zu)\n", p1, p2, i);
p1 = p2;
}
free(p1);
/* Test realloc that should fail "in place", i.e.,
* fallback to free()-- malloc()
*/
p1 = malloc(32);
p2 = malloc(32);
p3 = realloc(p1, 64);
if (p3 == p1 || p3 == NULL)
printf(
"realloc - failed non-in place: realloc(%p,%d) = %p\n", p1, 64, p3);
free(p3);
free(p2);
/*
* Yet another case
*/
p1 = malloc(8);
p2 = malloc(8);
free(p1);
sc = posix_memalign(&p1, 16, 32);
if (!sc)
free(p1);
/*
* Allocate with default alignment coverage
*/
sc = rtems_memalign( &p4, 0, 8 );
if ( !sc && p4 )
free( p4 );
/*
* Walk the C Program Heap
*/
puts( "malloc_walk - normal path" );
malloc_walk_ok = malloc_walk( 1234, false );
rtems_test_assert( malloc_walk_ok );
puts( "malloc_walk - in critical section path" );
_Thread_Dispatch_disable();
malloc_walk_ok = malloc_walk( 1234, false );
rtems_test_assert( malloc_walk_ok );
_Thread_Dispatch_enable( _Per_CPU_Get() );
/*
* Realloc with a bad pointer to force a point
*/
p4 = realloc( test_realloc, 32 );
p4 = _realloc_r( NULL, NULL, 1 );
}
void *realloc(void *ptr, size_t sz)
{
return _realloc_r(_REENT, ptr, sz);
}
