The Tor Browser: tools/trace-malloc/allocation-stacks.c@ac0c01689b40

Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

     1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-

     2  *

     3  * This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include <stdio.h>

     7 #include <stdlib.h>

     8 #include <string.h>

     9 #include <errno.h>

    10 #ifdef HAVE_GETOPT_H

    11 #include <getopt.h>

    12 #else

    13 extern int  getopt(int argc, char *const *argv, const char *shortopts);

    14 extern char *optarg;

    15 extern int  optind;

    16 #ifdef XP_WIN32

    17 int optind=1;

    18 #endif

    19 #endif

    20 #include <time.h>

    21 #include "nsTraceMalloc.h"

    22 #include "tmreader.h"

    24 static char *program;

    26 static void my_tmevent_handler(tmreader *tmr, tmevent *event)

    27 {

    28     tmcallsite *callsite;

    30     switch (event->type) {

    31       case TM_EVENT_REALLOC:

    32       case TM_EVENT_MALLOC:

    33       case TM_EVENT_CALLOC:

    34         for (callsite = tmreader_callsite(tmr, event->serial);

    35              callsite != &tmr->calltree_root; callsite = callsite->parent) {

    36             fprintf(stdout, "%s +%08X (%s:%d)\n",

    37                     (const char*)callsite->method->graphnode.entry.value,

    38                     callsite->offset,

    39                     callsite->method->sourcefile,

    40                     callsite->method->linenumber);

    41         }

    42         fprintf(stdout, "\n");

    43     }

    44 }

    46 int main(int argc, char **argv)

    47 {

    48     int i, j, rv;

    49     tmreader *tmr;

    50     FILE *fp;

    51     time_t start;

    53     program = *argv;

    55     tmr = tmreader_new(program, NULL);

    56     if (!tmr) {

    57         perror(program);

    58         exit(1);

    59     }

    61     start = time(NULL);

    62     fprintf(stdout, "%s starting at %s", program, ctime(&start));

    63     fflush(stdout);

    65     argc -= optind;

    66     argv += optind;

    67     if (argc == 0) {

    68         if (tmreader_eventloop(tmr, "-", my_tmevent_handler) <= 0)

    69             exit(1);

    70     } else {

    71         for (i = j = 0; i < argc; i++) {

    72             fp = fopen(argv[i], "r");

    73             if (!fp) {

    74                 fprintf(stderr, "%s: can't open %s: %s\n",

    75                         program, argv[i], strerror(errno));

    76                 exit(1);

    77             }

    78             rv = tmreader_eventloop(tmr, argv[i], my_tmevent_handler);

    79             if (rv < 0)

    80                 exit(1);

    81             if (rv > 0)

    82                 j++;

    83             fclose(fp);

    84         }

    85         if (j == 0)

    86             exit(1);

    87     }

    89     tmreader_destroy(tmr);

    91     exit(0);

    92 }

The Tor Browser / file revision

tools/trace-malloc/allocation-stacks.c@ac0c01689b40

tools/trace-malloc/allocation-stacks.c