// Copyright (c) 2011 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 "build/build_config.h"

#include "base/command_line.h"
#include "base/message_loop.h"
#include "base/system_monitor/system_monitor.h"
#include "chrome/common/chrome_result_codes.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/logging_chrome.h"
#include "chrome/nacl/nacl_listener.h"
#include "chrome/nacl/nacl_main_platform_delegate.h"
#include "content/common/child_process.h"
#include "content/common/hi_res_timer_manager.h"
#include "content/common/main_function_params.h"

// This function provides some ways to test crash and assertion handling
// behavior of the renderer.
static void HandleNaClTestParameters(const CommandLine& command_line) {
// The message box doesn't work in the 64 bit binaries anyways, so no need to
// link to it since the 64 bit binary doesn't link with chrome or content.
#if !defined(NACL_WIN64)
  if (command_line.HasSwitch(switches::kNaClStartupDialog)) {
    ChildProcess::WaitForDebugger("NativeClient");
  }
#endif
}

// main() routine for the NaCl loader process.
int NaClMain(const MainFunctionParams& parameters) {
  const CommandLine& parsed_command_line = parameters.command_line_;

  // This function allows pausing execution using the --nacl-startup-dialog
  // flag allowing us to attach a debugger.
  // Do not move this function down since that would mean we can't easily debug
  // whatever occurs before it.
  HandleNaClTestParameters(parsed_command_line);

  // The main thread of the plugin services IO.
  MessageLoopForIO main_message_loop;
  base::PlatformThread::SetName("CrNaClMain");

  base::SystemMonitor system_monitor;
  HighResolutionTimerManager hi_res_timer_manager;

#if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX)
  NaClMainPlatformDelegate platform(parameters);

  platform.PlatformInitialize();
  bool no_sandbox = parsed_command_line.HasSwitch(switches::kNoSandbox);
  platform.InitSandboxTests(no_sandbox);

  if (!no_sandbox) {
    platform.EnableSandbox();
  }
  bool sandbox_test_result = platform.RunSandboxTests();

  if (sandbox_test_result) {
    bool debug = parsed_command_line.HasSwitch(switches::kEnableNaClDebug);
    NaClListener listener;
    listener.set_debug_enabled(debug);
    listener.Listen();
  } else {
    // This indirectly prevents the test-harness-success-cookie from being set,
    // as a way of communicating test failure, because the nexe won't reply.
    // TODO(jvoung): find a better way to indicate failure that doesn't
    // require waiting for a timeout.
    VLOG(1) << "Sandbox test failed: Not launching NaCl process";
  }
#else
  NOTIMPLEMENTED() << " not implemented startup, plugin startup dialog etc.";
#endif

  platform.PlatformUninitialize();
  return 0;
}