static int lua__uniq_inuse(lua_State *L)
{
struct handlemap * h = CHECK_UNIQ(L, 1);
handleid id = (handleid)luaL_checkinteger(L, 2);
void *p = handlemap_grab(h, id);
lua_pushboolean(L, p != NULL);
return 1;
}
static void
grab(struct handlemap *m, int thread) {
int i;
for (i=0;i<HANDLE_N;i++) {
int r = rand() % (i+1);
handleid id = pool[r];
void *ptr = handlemap_grab(m, id);
printf("thread %d: grab %d, id = %u, ptr = %p\n", thread, r, id, ptr);
usleep(50);
if (ptr) {
ptr = handlemap_release(m, id);
if (ptr) {
printf("thread %d: release %d, id = %u, ptr = %p\n", thread, r, id, ptr);
}
}
}
}
