mirror of
https://gitlab.isc.org/isc-projects/bind9
synced 2025-08-24 19:18:50 +00:00
58bd26b6cf
This commit converts the license handling to adhere to the REUSE specification. It specifically: 1. Adds used licnses to LICENSES/ directory 2. Add "isc" template for adding the copyright boilerplate 3. Changes all source files to include copyright and SPDX license header, this includes all the C sources, documentation, zone files, configuration files. There are notes in the doc/dev/copyrights file on how to add correct headers to the new files. 4. Handle the rest that can't be modified via .reuse/dep5 file. The binary (or otherwise unmodifiable) files could have license places next to them in <foo>.license file, but this would lead to cluttered repository and most of the files handled in the .reuse/dep5 file are system test files.
86 lines
1.8 KiB
C
86 lines
1.8 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* SPDX-License-Identifier: MPL-2.0
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, you can obtain one at https://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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#include <inttypes.h>
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#include <string.h>
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#include <isc/astack.h>
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#include <isc/atomic.h>
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#include <isc/mem.h>
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#include <isc/mutex.h>
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#include <isc/types.h>
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#include <isc/util.h>
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struct isc_astack {
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isc_mem_t *mctx;
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size_t size;
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size_t pos;
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isc_mutex_t lock;
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uintptr_t nodes[];
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};
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isc_astack_t *
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isc_astack_new(isc_mem_t *mctx, size_t size) {
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isc_astack_t *stack = isc_mem_get(
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mctx, sizeof(isc_astack_t) + size * sizeof(uintptr_t));
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*stack = (isc_astack_t){
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.size = size,
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};
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isc_mem_attach(mctx, &stack->mctx);
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memset(stack->nodes, 0, size * sizeof(uintptr_t));
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isc_mutex_init(&stack->lock);
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return (stack);
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}
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bool
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isc_astack_trypush(isc_astack_t *stack, void *obj) {
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if (!isc_mutex_trylock(&stack->lock)) {
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if (stack->pos >= stack->size) {
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UNLOCK(&stack->lock);
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return (false);
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}
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stack->nodes[stack->pos++] = (uintptr_t)obj;
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UNLOCK(&stack->lock);
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return (true);
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} else {
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return (false);
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}
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}
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void *
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isc_astack_pop(isc_astack_t *stack) {
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LOCK(&stack->lock);
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uintptr_t rv;
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if (stack->pos == 0) {
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rv = 0;
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} else {
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rv = stack->nodes[--stack->pos];
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}
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UNLOCK(&stack->lock);
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return ((void *)rv);
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}
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void
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isc_astack_destroy(isc_astack_t *stack) {
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LOCK(&stack->lock);
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REQUIRE(stack->pos == 0);
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UNLOCK(&stack->lock);
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isc_mutex_destroy(&stack->lock);
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isc_mem_putanddetach(&stack->mctx, stack,
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sizeof(struct isc_astack) +
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stack->size * sizeof(uintptr_t));
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}
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