libui/unix/alloc.c

73 lines
1.6 KiB
C

// 7 april 2015
#include <string.h>
#include "uipriv_unix.h"
static GPtrArray *allocations;
void initAlloc(void)
{
allocations = g_ptr_array_new();
}
static void uninitComplain(gpointer ptr, gpointer data)
{
fprintf(stderr, "[libui] %p\n", ptr);
}
// TODO bring back the type names for this
void uninitAlloc(void)
{
if (allocations->len == 0) {
g_ptr_array_free(allocations, TRUE);
return;
}
fprintf(stderr, "[libui] leaked allocations:\n");
g_ptr_array_foreach(allocations, uninitComplain, NULL);
complain("either you left something around or there's a bug in libui");
}
#define UINT8(p) ((uint8_t *) (p))
#define PVOID(p) ((void *) (p))
#define DATA(p) PVOID(UINT8(p) + sizeof (size_t))
#define BASE(p) PVOID(UINT8(p) - sizeof (size_t))
#define SIZE(p) ((size_t *) (p))
void *uiAlloc(size_t size)
{
void *out;
out = g_malloc0(sizeof (size_t) + size);
*SIZE(out) = size;
g_ptr_array_add(allocations, out);
return DATA(out);
}
void *uiRealloc(void *p, size_t new)
{
void *out;
size_t *s;
if (p == NULL)
return uiAlloc(new);
p = BASE(p);
out = g_realloc(p, sizeof (size_t) + new);
s = SIZE(out);
if (new <= *s)
memset(((uint8_t *) DATA(out)) + *s, 0, new - *s);
*s = new;
if (g_ptr_array_remove(allocations, p) == FALSE)
complain("%p not found in allocations array in uiRealloc()", p);
g_ptr_array_add(allocations, out);
return DATA(out);
}
void uiFree(void *p)
{
if (p == NULL)
complain("attempt to uiFree(NULL); there's a bug somewhere");
p = BASE(p);
g_free(p);
if (g_ptr_array_remove(allocations, p) == FALSE)
complain("%p not found in allocations array in uiFree()", p);
}