Function cache_bin_alloc_easy

deps/jemalloc/include/jemalloc/internal/cache_bin.h:87–117

}

JEMALLOC_ALWAYS_INLINE void *
cache_bin_alloc_easy(cache_bin_t *bin, bool *success) {
	void *ret;

	bin->ncached--;

	/*
	 * Check for both bin->ncached == 0 and ncached < low_water
	 * in a single branch.
	 */
	if (unlikely(bin->ncached <= bin->low_water)) {
		bin->low_water = bin->ncached;
		if (bin->ncached == -1) {
			bin->ncached = 0;
			*success = false;
			return NULL;
		}
	}

	/*
	 * success (instead of ret) should be checked upon the return of this
	 * function.  We avoid checking (ret == NULL) because there is never a
	 * null stored on the avail stack (which is unknown to the compiler),
	 * and eagerly checking ret would cause pipeline stall (waiting for the
	 * cacheline).
	 */
	*success = true;
	ret = *(bin->avail - (bin->ncached + 1));

	return ret;
}

JEMALLOC_ALWAYS_INLINE bool
cache_bin_dalloc_easy(cache_bin_t *bin, cache_bin_info_t *bin_info, void *ptr) {