Prototype implementation of zygotes

chrome/app/breakpad_linux.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <fcntl.h>
 #include <sys/socket.h>
 #include <sys/uio.h>
 #include <unistd.h>
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/eintr_wrapper.h"
 #include "base/file_version_info_linux.h"
 #include "base/path_service.h"
 #include "base/rand_util.h"
+#include "base/reserved_file_descriptors.h"
 #include "breakpad/linux/directory_reader.h"
 #include "breakpad/linux/exception_handler.h"
 #include "breakpad/linux/linux_libc_support.h"
 #include "breakpad/linux/linux_syscall_support.h"
 #include "breakpad/linux/memory.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/installer/util/google_update_settings.h"
 
 static const char kUploadURL[] =
     "https://clients2.google.com/cr/report";
@@ skipping 467 matching lines @@
   sys_close(fds[1]);
 
   char b;
   HANDLE_EINTR(sys_read(fds[0], &b, 1));
 
   return true;
 }
 
 void EnableRendererCrashDumping() {
   // When the browser forks off our process, it installs the crash signal file
-  // descriptor in this slot:
-  static const int kMagicCrashSignalFd = 4;
+  // descriptor in slot kMagicCrashSignalFd.
 
   // We deliberately leak this object.
   google_breakpad::ExceptionHandler* handler =
       new google_breakpad::ExceptionHandler("" /* unused */, NULL, NULL,
                                             (void*) kMagicCrashSignalFd, true);
   handler->set_crash_handler(RendererCrashHandler);
 }
 
 void InitCrashReporter() {
   if (!GoogleUpdateSettings::GetCollectStatsConsent())
     return;
 
   // Determine the process type and take appropriate action.
   const CommandLine& parsed_command_line = *CommandLine::ForCurrentProcess();
   const std::wstring process_type =
       parsed_command_line.GetSwitchValue(switches::kProcessType);
   if (process_type.empty())
     EnableCrashDumping();
   else if (process_type == switches::kRendererProcess)
     EnableRendererCrashDumping();
 }