/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#pragma once
#include <inttypes.h>
#include <isc/mem.h>
#include <isc/types.h>
isc_astack_t *
isc_astack_new(isc_mem_t *mctx, size_t size);
/*%<
* Allocate and initialize a new array stack of size 'size'.
*/
void
isc_astack_destroy(isc_astack_t *stack);
/*%<
* Free an array stack 'stack'.
*
* Requires:
* \li 'stack' is empty.
*/
bool
isc_astack_trypush(isc_astack_t *stack, void *obj);
/*%<
* Try to push 'obj' onto array stack 'astack'. On failure, either
* because the stack size limit has been reached or because another
* thread has already changed the stack pointer, return 'false'.
*/
void *
isc_astack_pop(isc_astack_t *stack);
/*%<
* Pop an object off of array stack 'stack'. If the stack is empty,
* return NULL.
*/
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