зеркало из https://github.com/mozilla/gecko-dev.git
74 строки
1.9 KiB
C
74 строки
1.9 KiB
C
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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 http://mozilla.org/MPL/2.0/. */
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/* A regression test for bug 794316 */
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#include <stdio.h>
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#include <stdlib.h>
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#include "prio.h"
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static PRIOMethods dummyMethods;
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int main()
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{
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PRDescIdentity topId, middleId, bottomId;
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PRFileDesc *top, *middle, *bottom;
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PRFileDesc *fd;
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topId = PR_GetUniqueIdentity("top");
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middleId = PR_GetUniqueIdentity("middle");
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bottomId = PR_GetUniqueIdentity("bottom");
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top = PR_CreateIOLayerStub(topId, &dummyMethods);
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middle = PR_CreateIOLayerStub(middleId, &dummyMethods);
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bottom = PR_CreateIOLayerStub(bottomId, &dummyMethods);
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fd = bottom;
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PR_PushIOLayer(fd, PR_TOP_IO_LAYER, middle);
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PR_PushIOLayer(fd, PR_TOP_IO_LAYER, top);
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top = fd;
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middle = top->lower;
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bottom = middle->lower;
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/* Verify that the higher pointers are correct. */
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if (middle->higher != top) {
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fprintf(stderr, "middle->higher is wrong\n");
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fprintf(stderr, "FAILED\n");
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exit(1);
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}
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if (bottom->higher != middle) {
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fprintf(stderr, "bottom->higher is wrong\n");
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fprintf(stderr, "FAILED\n");
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exit(1);
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}
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top = PR_PopIOLayer(fd, topId);
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top->dtor(top);
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middle = fd;
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bottom = middle->lower;
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/* Verify that the higher pointer is correct. */
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if (bottom->higher != middle) {
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fprintf(stderr, "bottom->higher is wrong\n");
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fprintf(stderr, "FAILED\n");
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exit(1);
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}
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middle = PR_PopIOLayer(fd, middleId);
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middle->dtor(middle);
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if (fd->identity != bottomId) {
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fprintf(stderr, "The bottom layer has the wrong identity\n");
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fprintf(stderr, "FAILED\n");
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exit(1);
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}
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fd->dtor(fd);
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printf("PASS\n");
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return 0;
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}
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