Prototype implementation of zygotes

chrome/app/chrome_dll_main.cc

 // Copyright (c) 2006-2008 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.
 
 // TODO(port): the ifdefs in here are a first step towards trying to determine
 // the correct abstraction for all the OS functionality required at this
 // stage of process initialization. It should not be taken as a final
 // abstraction.
 
 #include "build/build_config.h"
@@ skipping 27 matching lines @@
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
 #include "base/scoped_nsautorelease_pool.h"
 #include "base/stats_counters.h"
 #include "base/stats_table.h"
 #include "base/string_util.h"
 #if defined(OS_WIN)
 #include "base/win_util.h"
 #endif
+#if defined(OS_LINUX)
+#include "base/zygote_manager.h"
+#endif
 #if defined(OS_MACOSX)
 #include "chrome/app/breakpad_mac.h"
 #elif defined(OS_LINUX)
 #include "chrome/app/breakpad_linux.h"
 #endif
 #include "chrome/app/scoped_ole_initializer.h"
 #include "chrome/browser/renderer_host/render_process_host.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_counters.h"
 #include "chrome/common/chrome_paths.h"
@@ skipping 227 matching lines @@
 
   // We need this pool for all the objects created before we get to the
   // event loop, but we don't want to leave them hanging around until the
   // app quits. Each "main" needs to flush this pool right before it goes into
   // its main event loop to get rid of the cruft.
   base::ScopedNSAutoreleasePool autorelease_pool;
 
   // Initialize the command line.
 #if defined(OS_WIN)
   CommandLine::Init(0, NULL);
+#elif defined(OS_LINUX)
+  base::ZygoteManager* zm = base::ZygoteManager::Get();
+  std::vector<std::string>* zargv = NULL;
+  if (zm)
+    zargv = zm->Start();
+  if (zargv) {
+    // Forked child.
+    CommandLine::Init(*zargv);
+  } else {
+    // Original process.
+    CommandLine::Init(argc, argv);
+  }
 #else
   CommandLine::Init(argc, argv);
 #endif
 
 #if defined(OS_MACOSX)
   // Needs to be called after CommandLine::Init().
   InitCrashProcessInfo();
 #endif
 
   const CommandLine& parsed_command_line = *CommandLine::ForCurrentProcess();
@@ skipping 197 matching lines @@
   _CrtDumpMemoryLeaks();
 #endif  // _CRTDBG_MAP_ALLOC
 
   _Module.Term();
 #endif
 
   logging::CleanupChromeLogging();
 
   return rv;
 }