michael@0: // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: 
michael@0: #include "base/debug_util.h"
michael@0: 
michael@0: #include "base/platform_thread.h"
michael@0: 
michael@0: #include <stdarg.h>
michael@0: #include <stdio.h>
michael@0: #include <stdlib.h>
michael@0: 
michael@0: #ifdef OS_WIN
michael@0: #include <io.h>
michael@0: #else
michael@0: #include <unistd.h>
michael@0: #endif
michael@0: 
michael@0: #ifndef STDOUT_FILENO
michael@0: #define STDOUT_FILENO 1
michael@0: #endif
michael@0: 
michael@0: bool DebugUtil::WaitForDebugger(int wait_seconds, bool silent) {
michael@0:   for (int i = 0; i < wait_seconds * 10; ++i) {
michael@0:     if (BeingDebugged()) {
michael@0:       if (!silent)
michael@0:         BreakDebugger();
michael@0:       return true;
michael@0:     }
michael@0:     PlatformThread::Sleep(100);
michael@0:   }
michael@0:   return false;
michael@0: }
michael@0: 
michael@0: const void *const *StackTrace::Addresses(size_t* count) {
michael@0:   *count = trace_.size();
michael@0:   if (trace_.size())
michael@0:     return &trace_[0];
michael@0:   return NULL;
michael@0: }
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: EnvironmentLog::EnvironmentLog(const char* varname)
michael@0: {
michael@0:   const char *e = getenv(varname);
michael@0:   if (e && *e)
michael@0:     fname_ = e;
michael@0: }
michael@0: 
michael@0: EnvironmentLog::~EnvironmentLog()
michael@0: {
michael@0: }
michael@0: 
michael@0: void
michael@0: EnvironmentLog::print(const char* format, ...)
michael@0: {
michael@0:   if (!fname_.size())
michael@0:     return;
michael@0: 
michael@0:   FILE* f;
michael@0:   if (fname_.compare("-") == 0)
michael@0:     f = fdopen(dup(STDOUT_FILENO), "a");
michael@0:   else
michael@0:     f = fopen(fname_.c_str(), "a");
michael@0: 
michael@0:   if (!f)
michael@0:     return;
michael@0: 
michael@0:   va_list a;
michael@0:   va_start(a, format);
michael@0:   vfprintf(f, format, a);
michael@0:   va_end(a);
michael@0:   fclose(f);
michael@0: }
michael@0: 
michael@0: } // namespace mozilla