The Tor Browser: ipc/chromium/src/base/debug

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.

     2 // Use of this source code is governed by a BSD-style license that can be

     3 // found in the LICENSE file.

     5 #include "base/debug_util.h"

     7 #include "base/platform_thread.h"

     9 #include <stdarg.h>

    10 #include <stdio.h>

    11 #include <stdlib.h>

    13 #ifdef OS_WIN

    14 #include <io.h>

    15 #else

    16 #include <unistd.h>

    17 #endif

    19 #ifndef STDOUT_FILENO

    20 #define STDOUT_FILENO 1

    21 #endif

    23 bool DebugUtil::WaitForDebugger(int wait_seconds, bool silent) {

    24   for (int i = 0; i < wait_seconds * 10; ++i) {

    25     if (BeingDebugged()) {

    26       if (!silent)

    27         BreakDebugger();

    28       return true;

    29     }

    30     PlatformThread::Sleep(100);

    31   }

    32   return false;

    33 }

    35 const void *const *StackTrace::Addresses(size_t* count) {

    36   *count = trace_.size();

    37   if (trace_.size())

    38     return &trace_[0];

    39   return NULL;

    40 }

    42 namespace mozilla {

    44 EnvironmentLog::EnvironmentLog(const char* varname)

    45 {

    46   const char *e = getenv(varname);

    47   if (e && *e)

    48     fname_ = e;

    49 }

    51 EnvironmentLog::~EnvironmentLog()

    52 {

    53 }

    55 void

    56 EnvironmentLog::print(const char* format, ...)

    57 {

    58   if (!fname_.size())

    59     return;

    61   FILE* f;

    62   if (fname_.compare("-") == 0)

    63     f = fdopen(dup(STDOUT_FILENO), "a");

    64   else

    65     f = fopen(fname_.c_str(), "a");

    67   if (!f)

    68     return;

    70   va_list a;

    71   va_start(a, format);

    72   vfprintf(f, format, a);

    73   va_end(a);

    74   fclose(f);

    75 }

    77 } // namespace mozilla

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