The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/nsprpub/pr/tests/pushtop.c	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,73 @@
     1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +/* A regression test for bug 794316 */
    1.10 +
    1.11 +#include <stdio.h>
    1.12 +#include <stdlib.h>
    1.13 +
    1.14 +#include "prio.h"
    1.15 +
    1.16 +static PRIOMethods dummyMethods;
    1.17 +
    1.18 +int main()
    1.19 +{
    1.20 +    PRDescIdentity topId, middleId, bottomId;
    1.21 +    PRFileDesc *top, *middle, *bottom;
    1.22 +    PRFileDesc *fd;
    1.23 +
    1.24 +    topId = PR_GetUniqueIdentity("top");
    1.25 +    middleId = PR_GetUniqueIdentity("middle");
    1.26 +    bottomId = PR_GetUniqueIdentity("bottom");
    1.27 +
    1.28 +    top = PR_CreateIOLayerStub(topId, &dummyMethods);
    1.29 +    middle = PR_CreateIOLayerStub(middleId, &dummyMethods);
    1.30 +    bottom = PR_CreateIOLayerStub(bottomId, &dummyMethods);
    1.31 +
    1.32 +    fd = bottom;
    1.33 +    PR_PushIOLayer(fd, PR_TOP_IO_LAYER, middle);
    1.34 +    PR_PushIOLayer(fd, PR_TOP_IO_LAYER, top);
    1.35 +
    1.36 +    top = fd;
    1.37 +    middle = top->lower;
    1.38 +    bottom = middle->lower;
    1.39 +
    1.40 +    /* Verify that the higher pointers are correct. */
    1.41 +    if (middle->higher != top) {
    1.42 +        fprintf(stderr, "middle->higher is wrong\n");
    1.43 +        fprintf(stderr, "FAILED\n");
    1.44 +        exit(1);
    1.45 +    }
    1.46 +    if (bottom->higher != middle) {
    1.47 +        fprintf(stderr, "bottom->higher is wrong\n");
    1.48 +        fprintf(stderr, "FAILED\n");
    1.49 +        exit(1);
    1.50 +    }
    1.51 +
    1.52 +    top = PR_PopIOLayer(fd, topId);
    1.53 +    top->dtor(top);
    1.54 +
    1.55 +    middle = fd;
    1.56 +    bottom = middle->lower;
    1.57 +
    1.58 +    /* Verify that the higher pointer is correct. */
    1.59 +    if (bottom->higher != middle) {
    1.60 +        fprintf(stderr, "bottom->higher is wrong\n");
    1.61 +        fprintf(stderr, "FAILED\n");
    1.62 +        exit(1);
    1.63 +    }
    1.64 +
    1.65 +    middle = PR_PopIOLayer(fd, middleId);
    1.66 +    middle->dtor(middle);
    1.67 +    if (fd->identity != bottomId) {
    1.68 +        fprintf(stderr, "The bottom layer has the wrong identity\n");
    1.69 +        fprintf(stderr, "FAILED\n");
    1.70 +        exit(1);
    1.71 +    }
    1.72 +    fd->dtor(fd);
    1.73 +
    1.74 +    printf("PASS\n");
    1.75 +    return 0;
    1.76 +}