mirror of
https://bitbucket.org/chromiumembedded/cef
synced 2025-06-05 21:39:12 +02:00
Refactor process execution logic (see issue #2969)
CefContext implements the public CEF API functions and delegates the stages of content & service_manager process execution to CefMainRunner. CEF-specific runtime logic (which may be replaced with chrome-specific runtime logic) is then delegated to CefMainDelegate which implements content::ContentMainDelegate.
This commit is contained in:
Marshall Greenblatt
@@ -3,7 +3,6 @@
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// be found in the LICENSE file.
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#include "libcef/browser/browser_message_loop.h"
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#include "libcef/browser/context.h"
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#include "libcef/common/content_client.h"
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#include "base/memory/ptr_util.h"
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@@ -116,9 +115,6 @@ std::unique_ptr<base::MessagePump> MessagePumpFactoryForUI() {
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} // namespace
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void InitMessagePumpFactoryForUI() {
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const CefSettings& settings = CefContext::Get()->settings();
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if (settings.external_message_pump) {
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base::MessagePump::OverrideMessagePumpForUIFactory(MessagePumpFactoryForUI);
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}
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void InitExternalMessagePumpFactoryForUI() {
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base::MessagePump::OverrideMessagePumpForUIFactory(MessagePumpFactoryForUI);
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}
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@@ -5,6 +5,6 @@
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#ifndef CEF_LIBCEF_BROWSER_BROWSER_MESSAGE_LOOP_H_
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#define CEF_LIBCEF_BROWSER_BROWSER_MESSAGE_LOOP_H_
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void InitMessagePumpFactoryForUI();
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void InitExternalMessagePumpFactoryForUI();
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#endif // CEF_LIBCEF_BROWSER_BROWSER_MESSAGE_LOOP_H_
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@@ -62,7 +62,7 @@ void ChromeBrowserProcessStub::OnContextInitialized() {
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context_initialized_ = true;
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}
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void ChromeBrowserProcessStub::Shutdown() {
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void ChromeBrowserProcessStub::CleanupOnUIThread() {
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CEF_REQUIRE_UIT();
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DCHECK(initialized_);
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DCHECK(context_initialized_);
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@@ -36,7 +36,7 @@ class ChromeBrowserProcessStub : public BrowserProcess {
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void Initialize();
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void OnContextInitialized();
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void Shutdown();
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void CleanupOnUIThread();
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// BrowserProcess implementation.
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void EndSession() override;
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@@ -3,34 +3,20 @@
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// be found in the LICENSE file.
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#include "libcef/browser/context.h"
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#include "libcef/browser/browser_host_impl.h"
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#include "libcef/browser/browser_info.h"
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#include "libcef/browser/browser_info_manager.h"
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#include "libcef/browser/browser_main.h"
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#include "libcef/browser/chrome_browser_process_stub.h"
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#include "libcef/browser/thread_util.h"
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#include "libcef/browser/trace_subscriber.h"
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#include "libcef/common/cef_switches.h"
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#include "libcef/common/main_delegate.h"
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#include "libcef/common/widevine_loader.h"
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#include "libcef/renderer/content_renderer_client.h"
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#include "base/base_switches.h"
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#include "base/bind.h"
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#include "base/command_line.h"
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#include "base/debug/debugger.h"
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#include "base/files/file_util.h"
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#include "base/message_loop/message_loop_current.h"
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#include "base/run_loop.h"
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#include "base/synchronization/waitable_event.h"
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#include "base/threading/thread_restrictions.h"
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#include "components/network_session_configurator/common/network_switches.h"
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#include "content/app/content_service_manager_main_delegate.h"
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#include "content/public/browser/notification_service.h"
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#include "content/public/browser/notification_types.h"
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#include "content/public/browser/render_process_host.h"
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#include "content/public/common/content_switches.h"
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#include "services/service_manager/embedder/main.h"
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#include "ui/base/resource/resource_bundle.h"
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#include "ui/base/ui_base_switches.h"
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#if defined(OS_WIN)
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@@ -38,13 +24,6 @@
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#include "chrome/chrome_elf/chrome_elf_main.h"
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#include "chrome/install_static/initialize_from_primary_module.h"
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#include "components/crash/core/app/crashpad.h"
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#include "content/public/app/sandbox_helper_win.h"
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#include "sandbox/win/src/sandbox_types.h"
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#endif
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#if defined(OS_MACOSX) || defined(OS_WIN)
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#include "components/crash/core/app/crash_switches.h"
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#include "third_party/crashpad/crashpad/handler/handler_main.h"
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#endif
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namespace {
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@@ -95,54 +74,6 @@ void InitCrashReporter() {
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}
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#endif // defined(OS_WIN)
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#if defined(OS_MACOSX) || defined(OS_WIN)
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// Based on components/crash/core/app/run_as_crashpad_handler_win.cc
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// Remove the "--type=crashpad-handler" command-line flag that will otherwise
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// confuse the crashpad handler.
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// Chrome uses an embedded crashpad handler on Windows only and imports this
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// function via the existing "run_as_crashpad_handler" target defined in
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// components/crash/core/app/BUILD.gn. CEF uses an embedded handler on both
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// Windows and macOS so we define the function here instead of using the
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// existing target (because we can't use that target on macOS).
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int RunAsCrashpadHandler(const base::CommandLine& command_line) {
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base::CommandLine::StringVector argv = command_line.argv();
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const base::CommandLine::StringType process_type =
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FILE_PATH_LITERAL("--type=");
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argv.erase(
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std::remove_if(argv.begin(), argv.end(),
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[&process_type](const base::CommandLine::StringType& str) {
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return base::StartsWith(str, process_type,
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base::CompareCase::SENSITIVE) ||
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(!str.empty() && str[0] == L'/');
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}),
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argv.end());
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#if defined(OS_MACOSX)
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// HandlerMain on macOS uses the system version of getopt_long which expects
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// the first argument to be the program name.
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argv.insert(argv.begin(), command_line.GetProgram().value());
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#endif
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std::unique_ptr<char*[]> argv_as_utf8(new char*[argv.size() + 1]);
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std::vector<std::string> storage;
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storage.reserve(argv.size());
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for (size_t i = 0; i < argv.size(); ++i) {
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#if defined(OS_WIN)
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storage.push_back(base::UTF16ToUTF8(argv[i]));
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#else
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storage.push_back(argv[i]);
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#endif
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argv_as_utf8[i] = &storage[i][0];
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}
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argv_as_utf8[argv.size()] = nullptr;
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argv.clear();
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return crashpad::HandlerMain(static_cast<int>(storage.size()),
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argv_as_utf8.get(), nullptr);
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}
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#endif // defined(OS_MACOSX) || defined(OS_WIN)
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bool GetColor(const cef_color_t cef_in, bool is_windowless, SkColor* sk_out) {
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// Windowed browser colors must be fully opaque.
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if (!is_windowless && CefColorGetA(cef_in) != SK_AlphaOPAQUE)
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@@ -252,52 +183,8 @@ int CefExecuteProcess(const CefMainArgs& args,
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InitCrashReporter();
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#endif
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base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
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#if defined(OS_WIN)
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command_line.ParseFromString(::GetCommandLineW());
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#else
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command_line.InitFromArgv(args.argc, args.argv);
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#endif
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// Wait for the debugger as early in process initialization as possible.
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if (command_line.HasSwitch(switches::kWaitForDebugger))
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base::debug::WaitForDebugger(60, true);
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// If no process type is specified then it represents the browser process and
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// we do nothing.
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std::string process_type =
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command_line.GetSwitchValueASCII(switches::kProcessType);
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if (process_type.empty())
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return -1;
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#if defined(OS_MACOSX) || defined(OS_WIN)
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if (process_type == crash_reporter::switches::kCrashpadHandler)
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return RunAsCrashpadHandler(command_line);
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#endif
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CefMainDelegate main_delegate(application);
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// Execute the secondary process.
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#if defined(OS_WIN)
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sandbox::SandboxInterfaceInfo sandbox_info = {0};
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if (windows_sandbox_info == nullptr) {
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content::InitializeSandboxInfo(&sandbox_info);
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windows_sandbox_info = &sandbox_info;
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}
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content::ContentMainParams params(&main_delegate);
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params.instance = args.instance;
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params.sandbox_info =
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static_cast<sandbox::SandboxInterfaceInfo*>(windows_sandbox_info);
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return content::ContentMain(params);
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#else
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content::ContentMainParams params(&main_delegate);
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params.argc = args.argc;
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params.argv = const_cast<const char**>(args.argv);
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return content::ContentMain(params);
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#endif
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return CefMainRunner::RunAsHelperProcess(args, application,
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windows_sandbox_info);
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}
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bool CefInitialize(const CefMainArgs& args,
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@@ -321,8 +208,6 @@ bool CefInitialize(const CefMainArgs& args,
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return false;
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}
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g_browser_process = new ChromeBrowserProcessStub();
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// Create the new global context object.
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g_context = new CefContext();
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@@ -466,78 +351,14 @@ bool CefContext::Initialize(const CefMainArgs& args,
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NormalizePathAndSet(settings_.resources_dir_path, "resources_dir_path");
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NormalizePathAndSet(settings_.locales_dir_path, "locales_dir_path");
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main_delegate_.reset(new CefMainDelegate(application));
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browser_info_manager_.reset(new CefBrowserInfoManager);
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int exit_code;
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// Initialize the content runner.
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content::ContentMainParams params(main_delegate_.get());
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#if defined(OS_WIN)
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sandbox::SandboxInterfaceInfo sandbox_info = {0};
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if (windows_sandbox_info == nullptr) {
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windows_sandbox_info = &sandbox_info;
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settings_.no_sandbox = true;
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}
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params.instance = args.instance;
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params.sandbox_info =
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static_cast<sandbox::SandboxInterfaceInfo*>(windows_sandbox_info);
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#else
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params.argc = args.argc;
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params.argv = const_cast<const char**>(args.argv);
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#endif
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sm_main_delegate_.reset(
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new content::ContentServiceManagerMainDelegate(params));
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sm_main_params_.reset(
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new service_manager::MainParams(sm_main_delegate_.get()));
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#if defined(OS_POSIX) && !defined(OS_ANDROID)
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sm_main_params_->argc = params.argc;
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sm_main_params_->argv = params.argv;
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#endif
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exit_code = service_manager::MainInitialize(*sm_main_params_);
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DCHECK_LT(exit_code, 0);
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if (exit_code >= 0)
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return false;
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static_cast<ChromeBrowserProcessStub*>(g_browser_process)->Initialize();
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if (settings.multi_threaded_message_loop) {
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base::WaitableEvent uithread_startup_event(
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base::WaitableEvent::ResetPolicy::AUTOMATIC,
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base::WaitableEvent::InitialState::NOT_SIGNALED);
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if (!main_delegate_->CreateUIThread(base::BindOnce(
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[](CefContext* context, base::WaitableEvent* event) {
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service_manager::MainRun(*context->sm_main_params_);
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event->Signal();
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},
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base::Unretained(this),
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base::Unretained(&uithread_startup_event)))) {
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return false;
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}
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initialized_ = true;
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// We need to wait until service_manager::MainRun has finished.
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uithread_startup_event.Wait();
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} else {
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initialized_ = true;
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service_manager::MainRun(*sm_main_params_);
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}
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if (CEF_CURRENTLY_ON_UIT()) {
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OnContextInitialized();
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} else {
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// Continue initialization on the UI thread.
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CEF_POST_TASK(CEF_UIT, base::Bind(&CefContext::OnContextInitialized,
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base::Unretained(this)));
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}
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return true;
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main_runner_.reset(new CefMainRunner(settings_.multi_threaded_message_loop,
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settings_.external_message_pump));
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return main_runner_->Initialize(
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&settings_, application, args, windows_sandbox_info, &initialized_,
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base::BindOnce(&CefContext::OnContextInitialized,
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base::Unretained(this)));
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}
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void CefContext::Shutdown() {
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@@ -546,28 +367,9 @@ void CefContext::Shutdown() {
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shutting_down_ = true;
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if (settings_.multi_threaded_message_loop) {
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// Events that will be used to signal when shutdown is complete. Start in
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// non-signaled mode so that the event will block.
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base::WaitableEvent uithread_shutdown_event(
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base::WaitableEvent::ResetPolicy::AUTOMATIC,
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base::WaitableEvent::InitialState::NOT_SIGNALED);
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// Finish shutdown on the UI thread.
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CEF_POST_TASK(CEF_UIT,
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base::Bind(&CefContext::FinishShutdownOnUIThread,
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base::Unretained(this), &uithread_shutdown_event));
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/// Block until UI thread shutdown is complete.
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uithread_shutdown_event.Wait();
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FinalizeShutdown();
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} else {
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// Finish shutdown on the current thread, which should be the UI thread.
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FinishShutdownOnUIThread(nullptr);
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FinalizeShutdown();
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}
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main_runner_->Shutdown(
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base::BindOnce(&CefContext::ShutdownOnUIThread, base::Unretained(this)),
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base::BindOnce(&CefContext::FinalizeShutdown, base::Unretained(this)));
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}
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bool CefContext::OnInitThread() {
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@@ -654,13 +456,6 @@ bool CefContext::HasObserver(Observer* observer) const {
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void CefContext::OnContextInitialized() {
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CEF_REQUIRE_UIT();
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static_cast<ChromeBrowserProcessStub*>(g_browser_process)
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->OnContextInitialized();
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#if BUILDFLAG(ENABLE_WIDEVINE) && BUILDFLAG(ENABLE_LIBRARY_CDMS)
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CefWidevineLoader::GetInstance()->OnContextInitialized();
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#endif
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// Notify the handler.
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CefRefPtr<CefApp> app = CefContentClient::Get()->application();
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if (app.get()) {
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@@ -671,8 +466,7 @@ void CefContext::OnContextInitialized() {
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}
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}
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void CefContext::FinishShutdownOnUIThread(
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base::WaitableEvent* uithread_shutdown_event) {
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void CefContext::ShutdownOnUIThread() {
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CEF_REQUIRE_UIT();
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browser_info_manager_->DestroyAllBrowsers();
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@@ -682,34 +476,8 @@ void CefContext::FinishShutdownOnUIThread(
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if (trace_subscriber_.get())
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trace_subscriber_.reset(nullptr);
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static_cast<ChromeBrowserProcessStub*>(g_browser_process)->Shutdown();
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ui::ResourceBundle::GetSharedInstance().CleanupOnUIThread();
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sm_main_delegate_->ShutdownOnUIThread();
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if (uithread_shutdown_event)
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uithread_shutdown_event->Signal();
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}
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void CefContext::FinalizeShutdown() {
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if (content::RenderProcessHost::run_renderer_in_process()) {
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// Blocks until RenderProcess cleanup is complete.
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CefContentRendererClient::Get()->RunSingleProcessCleanup();
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}
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// Shut down the browser runner or UI thread.
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main_delegate_->ShutdownBrowser();
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// Shut down the content runner.
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service_manager::MainShutdown(*sm_main_params_);
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browser_info_manager_.reset(nullptr);
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sm_main_params_.reset(nullptr);
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sm_main_delegate_.reset(nullptr);
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main_delegate_.reset(nullptr);
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delete g_browser_process;
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g_browser_process = nullptr;
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}
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@@ -11,26 +11,14 @@
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#include <string>
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#include "include/cef_app.h"
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#include "libcef/browser/main_runner.h"
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#include "base/observer_list.h"
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#include "base/threading/platform_thread.h"
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#include "third_party/skia/include/core/SkColor.h"
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namespace base {
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class WaitableEvent;
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}
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namespace content {
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class ContentServiceManagerMainDelegate;
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}
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namespace service_manager {
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struct MainParams;
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}
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class CefBrowserHostImpl;
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class CefBrowserInfoManager;
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class CefMainDelegate;
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class CefTraceSubscriber;
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class CefContext {
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@@ -105,7 +93,7 @@ class CefContext {
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// Performs shutdown actions that need to occur on the UI thread before any
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// threads are destroyed.
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void FinishShutdownOnUIThread(base::WaitableEvent* uithread_shutdown_event);
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void ShutdownOnUIThread();
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// Destroys the main runner and related objects.
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void FinalizeShutdown();
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@@ -119,9 +107,7 @@ class CefContext {
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CefSettings settings_;
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std::unique_ptr<CefMainDelegate> main_delegate_;
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std::unique_ptr<content::ContentServiceManagerMainDelegate> sm_main_delegate_;
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std::unique_ptr<service_manager::MainParams> sm_main_params_;
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std::unique_ptr<CefMainRunner> main_runner_;
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std::unique_ptr<CefTraceSubscriber> trace_subscriber_;
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std::unique_ptr<CefBrowserInfoManager> browser_info_manager_;
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489
libcef/browser/main_runner.cc
Normal file
489
libcef/browser/main_runner.cc
Normal file
@@ -0,0 +1,489 @@
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// Copyright 2020 The Chromium Embedded Framework Authors.
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// Portions copyright 2014 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 "libcef/browser/main_runner.h"
|
||||
|
||||
#include "libcef/browser/browser_message_loop.h"
|
||||
#include "libcef/browser/thread_util.h"
|
||||
#include "libcef/renderer/content_renderer_client.h"
|
||||
|
||||
#include "base/at_exit.h"
|
||||
#include "base/base_switches.h"
|
||||
#include "base/command_line.h"
|
||||
#include "base/debug/debugger.h"
|
||||
#include "base/run_loop.h"
|
||||
#include "base/sequence_checker.h"
|
||||
#include "base/synchronization/lock.h"
|
||||
#include "base/synchronization/waitable_event.h"
|
||||
#include "base/threading/thread.h"
|
||||
#include "content/app/content_service_manager_main_delegate.h"
|
||||
#include "content/browser/scheduler/browser_task_executor.h"
|
||||
#include "content/public/browser/render_process_host.h"
|
||||
#include "content/public/common/content_switches.h"
|
||||
#include "services/service_manager/embedder/main.h"
|
||||
|
||||
#if defined(OS_WIN)
|
||||
#include <Objbase.h>
|
||||
#include <windows.h>
|
||||
#include "content/public/app/sandbox_helper_win.h"
|
||||
#include "sandbox/win/src/sandbox_types.h"
|
||||
#endif
|
||||
|
||||
#if defined(OS_MACOSX) || defined(OS_WIN)
|
||||
#include "components/crash/core/app/crash_switches.h"
|
||||
#include "third_party/crashpad/crashpad/handler/handler_main.h"
|
||||
#endif
|
||||
|
||||
namespace {
|
||||
|
||||
#if defined(OS_MACOSX) || defined(OS_WIN)
|
||||
|
||||
// Based on components/crash/core/app/run_as_crashpad_handler_win.cc
|
||||
// Remove the "--type=crashpad-handler" command-line flag that will otherwise
|
||||
// confuse the crashpad handler.
|
||||
// Chrome uses an embedded crashpad handler on Windows only and imports this
|
||||
// function via the existing "run_as_crashpad_handler" target defined in
|
||||
// components/crash/core/app/BUILD.gn. CEF uses an embedded handler on both
|
||||
// Windows and macOS so we define the function here instead of using the
|
||||
// existing target (because we can't use that target on macOS).
|
||||
int RunAsCrashpadHandler(const base::CommandLine& command_line) {
|
||||
base::CommandLine::StringVector argv = command_line.argv();
|
||||
const base::CommandLine::StringType process_type =
|
||||
FILE_PATH_LITERAL("--type=");
|
||||
argv.erase(
|
||||
std::remove_if(argv.begin(), argv.end(),
|
||||
[&process_type](const base::CommandLine::StringType& str) {
|
||||
return base::StartsWith(str, process_type,
|
||||
base::CompareCase::SENSITIVE) ||
|
||||
(!str.empty() && str[0] == L'/');
|
||||
}),
|
||||
argv.end());
|
||||
|
||||
#if defined(OS_MACOSX)
|
||||
// HandlerMain on macOS uses the system version of getopt_long which expects
|
||||
// the first argument to be the program name.
|
||||
argv.insert(argv.begin(), command_line.GetProgram().value());
|
||||
#endif
|
||||
|
||||
std::unique_ptr<char*[]> argv_as_utf8(new char*[argv.size() + 1]);
|
||||
std::vector<std::string> storage;
|
||||
storage.reserve(argv.size());
|
||||
for (size_t i = 0; i < argv.size(); ++i) {
|
||||
#if defined(OS_WIN)
|
||||
storage.push_back(base::UTF16ToUTF8(argv[i]));
|
||||
#else
|
||||
storage.push_back(argv[i]);
|
||||
#endif
|
||||
argv_as_utf8[i] = &storage[i][0];
|
||||
}
|
||||
argv_as_utf8[argv.size()] = nullptr;
|
||||
argv.clear();
|
||||
return crashpad::HandlerMain(static_cast<int>(storage.size()),
|
||||
argv_as_utf8.get(), nullptr);
|
||||
}
|
||||
|
||||
#endif // defined(OS_MACOSX) || defined(OS_WIN)
|
||||
|
||||
} // namespace
|
||||
|
||||
// Used to run the UI on a separate thread.
|
||||
class CefUIThread : public base::PlatformThread::Delegate {
|
||||
public:
|
||||
explicit CefUIThread(base::OnceClosure setup_callback)
|
||||
: setup_callback_(std::move(setup_callback)) {}
|
||||
~CefUIThread() override { Stop(); }
|
||||
|
||||
void Start() {
|
||||
base::AutoLock lock(thread_lock_);
|
||||
bool success = base::PlatformThread::CreateWithPriority(
|
||||
0, this, &thread_, base::ThreadPriority::NORMAL);
|
||||
if (!success) {
|
||||
LOG(FATAL) << "failed to UI create thread";
|
||||
}
|
||||
}
|
||||
|
||||
void Stop() {
|
||||
base::AutoLock lock(thread_lock_);
|
||||
|
||||
if (!stopping_) {
|
||||
stopping_ = true;
|
||||
CEF_POST_TASK(CEF_UIT, base::BindOnce(&CefUIThread::ThreadQuitHelper,
|
||||
base::Unretained(this)));
|
||||
}
|
||||
|
||||
// Can't join if the |thread_| is either already gone or is non-joinable.
|
||||
if (thread_.is_null())
|
||||
return;
|
||||
|
||||
base::PlatformThread::Join(thread_);
|
||||
thread_ = base::PlatformThreadHandle();
|
||||
|
||||
stopping_ = false;
|
||||
}
|
||||
|
||||
bool WaitUntilThreadStarted() const {
|
||||
DCHECK(owning_sequence_checker_.CalledOnValidSequence());
|
||||
start_event_.Wait();
|
||||
return true;
|
||||
}
|
||||
|
||||
void InitializeBrowserRunner(
|
||||
const content::MainFunctionParams& main_function_params) {
|
||||
// Use our own browser process runner.
|
||||
browser_runner_ = content::BrowserMainRunner::Create();
|
||||
|
||||
// Initialize browser process state. Uses the current thread's message loop.
|
||||
int exit_code = browser_runner_->Initialize(main_function_params);
|
||||
CHECK_EQ(exit_code, -1);
|
||||
}
|
||||
|
||||
protected:
|
||||
void ThreadMain() override {
|
||||
base::PlatformThread::SetName("CefUIThread");
|
||||
|
||||
#if defined(OS_WIN)
|
||||
// Initializes the COM library on the current thread.
|
||||
CoInitialize(nullptr);
|
||||
#endif
|
||||
|
||||
start_event_.Signal();
|
||||
|
||||
std::move(setup_callback_).Run();
|
||||
|
||||
base::RunLoop run_loop;
|
||||
run_loop_ = &run_loop;
|
||||
run_loop.Run();
|
||||
|
||||
browser_runner_->Shutdown();
|
||||
browser_runner_.reset(nullptr);
|
||||
|
||||
content::BrowserTaskExecutor::Shutdown();
|
||||
|
||||
// Run exit callbacks on the UI thread to avoid sequence check failures.
|
||||
base::AtExitManager::ProcessCallbacksNow();
|
||||
|
||||
#if defined(OS_WIN)
|
||||
// Closes the COM library on the current thread. CoInitialize must
|
||||
// be balanced by a corresponding call to CoUninitialize.
|
||||
CoUninitialize();
|
||||
#endif
|
||||
|
||||
run_loop_ = nullptr;
|
||||
}
|
||||
|
||||
void ThreadQuitHelper() {
|
||||
DCHECK(run_loop_);
|
||||
run_loop_->QuitWhenIdle();
|
||||
}
|
||||
|
||||
std::unique_ptr<content::BrowserMainRunner> browser_runner_;
|
||||
base::OnceClosure setup_callback_;
|
||||
|
||||
bool stopping_ = false;
|
||||
|
||||
// The thread's handle.
|
||||
base::PlatformThreadHandle thread_;
|
||||
mutable base::Lock thread_lock_; // Protects |thread_|.
|
||||
|
||||
base::RunLoop* run_loop_ = nullptr;
|
||||
|
||||
mutable base::WaitableEvent start_event_;
|
||||
|
||||
// This class is not thread-safe, use this to verify access from the owning
|
||||
// sequence of the Thread.
|
||||
base::SequenceChecker owning_sequence_checker_;
|
||||
};
|
||||
|
||||
CefMainRunner::CefMainRunner(bool multi_threaded_message_loop,
|
||||
bool external_message_pump)
|
||||
: multi_threaded_message_loop_(multi_threaded_message_loop),
|
||||
external_message_pump_(external_message_pump) {}
|
||||
|
||||
CefMainRunner::~CefMainRunner() = default;
|
||||
|
||||
bool CefMainRunner::Initialize(CefSettings* settings,
|
||||
CefRefPtr<CefApp> application,
|
||||
const CefMainArgs& args,
|
||||
void* windows_sandbox_info,
|
||||
bool* initialized,
|
||||
base::OnceClosure context_initialized) {
|
||||
CefRuntimeInitialize(settings, application);
|
||||
|
||||
const int exit_code =
|
||||
ContentMainInitialize(args, windows_sandbox_info, &settings->no_sandbox);
|
||||
if (exit_code >= 0) {
|
||||
NOTREACHED() << "ContentMainInitialize failed";
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!ContentMainRun(initialized, std::move(context_initialized))) {
|
||||
NOTREACHED() << "ContentMainRun failed";
|
||||
return false;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
void CefMainRunner::Shutdown(base::OnceClosure shutdown_on_ui_thread,
|
||||
base::OnceClosure finalize_shutdown) {
|
||||
if (multi_threaded_message_loop_) {
|
||||
// Events that will be used to signal when shutdown is complete. Start in
|
||||
// non-signaled mode so that the event will block.
|
||||
base::WaitableEvent uithread_shutdown_event(
|
||||
base::WaitableEvent::ResetPolicy::AUTOMATIC,
|
||||
base::WaitableEvent::InitialState::NOT_SIGNALED);
|
||||
|
||||
// Finish shutdown on the UI thread.
|
||||
CEF_POST_TASK(
|
||||
CEF_UIT,
|
||||
base::BindOnce(&CefMainRunner::FinishShutdownOnUIThread,
|
||||
base::Unretained(this), std::move(shutdown_on_ui_thread),
|
||||
&uithread_shutdown_event));
|
||||
|
||||
/// Block until UI thread shutdown is complete.
|
||||
uithread_shutdown_event.Wait();
|
||||
|
||||
FinalizeShutdown(std::move(finalize_shutdown));
|
||||
} else {
|
||||
// Finish shutdown on the current thread, which should be the UI thread.
|
||||
FinishShutdownOnUIThread(std::move(shutdown_on_ui_thread), nullptr);
|
||||
|
||||
FinalizeShutdown(std::move(finalize_shutdown));
|
||||
}
|
||||
}
|
||||
|
||||
// static
|
||||
int CefMainRunner::RunAsHelperProcess(const CefMainArgs& args,
|
||||
CefRefPtr<CefApp> application,
|
||||
void* windows_sandbox_info) {
|
||||
base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
|
||||
#if defined(OS_WIN)
|
||||
command_line.ParseFromString(::GetCommandLineW());
|
||||
#else
|
||||
command_line.InitFromArgv(args.argc, args.argv);
|
||||
#endif
|
||||
|
||||
// Wait for the debugger as early in process initialization as possible.
|
||||
if (command_line.HasSwitch(switches::kWaitForDebugger))
|
||||
base::debug::WaitForDebugger(60, true);
|
||||
|
||||
// If no process type is specified then it represents the browser process and
|
||||
// we do nothing.
|
||||
const std::string& process_type =
|
||||
command_line.GetSwitchValueASCII(switches::kProcessType);
|
||||
if (process_type.empty())
|
||||
return -1;
|
||||
|
||||
#if defined(OS_MACOSX) || defined(OS_WIN)
|
||||
if (process_type == crash_reporter::switches::kCrashpadHandler)
|
||||
return RunAsCrashpadHandler(command_line);
|
||||
#endif
|
||||
|
||||
std::unique_ptr<content::ContentMainDelegate> main_delegate;
|
||||
main_delegate.reset(new CefMainDelegate(/*context=*/nullptr,
|
||||
/*settings=*/nullptr, application));
|
||||
|
||||
// Execute the secondary process.
|
||||
#if defined(OS_WIN)
|
||||
sandbox::SandboxInterfaceInfo sandbox_info = {0};
|
||||
if (windows_sandbox_info == nullptr) {
|
||||
content::InitializeSandboxInfo(&sandbox_info);
|
||||
windows_sandbox_info = &sandbox_info;
|
||||
}
|
||||
|
||||
content::ContentMainParams params(main_delegate.get());
|
||||
params.instance = args.instance;
|
||||
params.sandbox_info =
|
||||
static_cast<sandbox::SandboxInterfaceInfo*>(windows_sandbox_info);
|
||||
|
||||
return content::ContentMain(params);
|
||||
#else
|
||||
content::ContentMainParams params(main_delegate.get());
|
||||
params.argc = args.argc;
|
||||
params.argv = const_cast<const char**>(args.argv);
|
||||
|
||||
return content::ContentMain(params);
|
||||
#endif
|
||||
}
|
||||
|
||||
void CefMainRunner::CefRuntimeInitialize(CefSettings* settings,
|
||||
CefRefPtr<CefApp> app) {
|
||||
DCHECK_EQ(RuntimeType::UNINITIALIZED, runtime_type_);
|
||||
DCHECK(!main_delegate_);
|
||||
|
||||
runtime_type_ = RuntimeType::CEF;
|
||||
CefMainDelegate::CefInitialize();
|
||||
main_delegate_.reset(new CefMainDelegate(this, settings, app));
|
||||
}
|
||||
|
||||
int CefMainRunner::ContentMainInitialize(const CefMainArgs& args,
|
||||
void* windows_sandbox_info,
|
||||
int* no_sandbox) {
|
||||
DCHECK(main_delegate_);
|
||||
|
||||
// Initialize the content runner.
|
||||
content::ContentMainParams params(main_delegate_.get());
|
||||
#if defined(OS_WIN)
|
||||
sandbox::SandboxInterfaceInfo sandbox_info = {0};
|
||||
if (windows_sandbox_info == nullptr) {
|
||||
windows_sandbox_info = &sandbox_info;
|
||||
*no_sandbox = true;
|
||||
}
|
||||
|
||||
params.instance = args.instance;
|
||||
params.sandbox_info =
|
||||
static_cast<sandbox::SandboxInterfaceInfo*>(windows_sandbox_info);
|
||||
#else
|
||||
params.argc = args.argc;
|
||||
params.argv = const_cast<const char**>(args.argv);
|
||||
#endif
|
||||
|
||||
sm_main_delegate_.reset(
|
||||
new content::ContentServiceManagerMainDelegate(params));
|
||||
sm_main_params_.reset(
|
||||
new service_manager::MainParams(sm_main_delegate_.get()));
|
||||
|
||||
#if defined(OS_POSIX) && !defined(OS_ANDROID)
|
||||
sm_main_params_->argc = params.argc;
|
||||
sm_main_params_->argv = params.argv;
|
||||
#endif
|
||||
|
||||
return service_manager::MainInitialize(*sm_main_params_);
|
||||
}
|
||||
|
||||
bool CefMainRunner::ContentMainRun(bool* initialized,
|
||||
base::OnceClosure context_initialized) {
|
||||
if (IsCefRuntime())
|
||||
CefMainDelegate::MainThreadInitialize();
|
||||
|
||||
if (multi_threaded_message_loop_) {
|
||||
base::WaitableEvent uithread_startup_event(
|
||||
base::WaitableEvent::ResetPolicy::AUTOMATIC,
|
||||
base::WaitableEvent::InitialState::NOT_SIGNALED);
|
||||
|
||||
if (!CreateUIThread(base::BindOnce(
|
||||
[](CefMainRunner* runner, base::WaitableEvent* event) {
|
||||
service_manager::MainRun(*runner->sm_main_params_);
|
||||
event->Signal();
|
||||
},
|
||||
base::Unretained(this),
|
||||
base::Unretained(&uithread_startup_event)))) {
|
||||
return false;
|
||||
}
|
||||
|
||||
*initialized = true;
|
||||
|
||||
// We need to wait until service_manager::MainRun has finished.
|
||||
uithread_startup_event.Wait();
|
||||
} else {
|
||||
*initialized = true;
|
||||
service_manager::MainRun(*sm_main_params_);
|
||||
}
|
||||
|
||||
if (CEF_CURRENTLY_ON_UIT()) {
|
||||
OnContextInitialized(std::move(context_initialized));
|
||||
} else {
|
||||
// Continue initialization on the UI thread.
|
||||
CEF_POST_TASK(CEF_UIT, base::BindOnce(&CefMainRunner::OnContextInitialized,
|
||||
base::Unretained(this),
|
||||
std::move(context_initialized)));
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
void CefMainRunner::PreCreateMainMessageLoop() {
|
||||
if (external_message_pump_) {
|
||||
InitExternalMessagePumpFactoryForUI();
|
||||
}
|
||||
}
|
||||
|
||||
int CefMainRunner::RunMainProcess(
|
||||
const content::MainFunctionParams& main_function_params) {
|
||||
if (!multi_threaded_message_loop_) {
|
||||
// Use our own browser process runner.
|
||||
browser_runner_ = content::BrowserMainRunner::Create();
|
||||
|
||||
// Initialize browser process state. Results in a call to
|
||||
// CefBrowserMain::PreMainMessageLoopStart() which creates the UI message
|
||||
// loop.
|
||||
int exit_code = browser_runner_->Initialize(main_function_params);
|
||||
if (exit_code >= 0)
|
||||
return exit_code;
|
||||
} else {
|
||||
// Running on the separate UI thread.
|
||||
DCHECK(ui_thread_);
|
||||
ui_thread_->InitializeBrowserRunner(main_function_params);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
bool CefMainRunner::CreateUIThread(base::OnceClosure setup_callback) {
|
||||
DCHECK(!ui_thread_);
|
||||
|
||||
ui_thread_.reset(new CefUIThread(std::move(setup_callback)));
|
||||
ui_thread_->Start();
|
||||
ui_thread_->WaitUntilThreadStarted();
|
||||
|
||||
if (external_message_pump_) {
|
||||
InitExternalMessagePumpFactoryForUI();
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
void CefMainRunner::OnContextInitialized(
|
||||
base::OnceClosure context_initialized) {
|
||||
CEF_REQUIRE_UIT();
|
||||
if (IsCefRuntime())
|
||||
CefMainDelegate::UIThreadInitialize();
|
||||
std::move(context_initialized).Run();
|
||||
}
|
||||
|
||||
void CefMainRunner::FinishShutdownOnUIThread(
|
||||
base::OnceClosure shutdown_on_ui_thread,
|
||||
base::WaitableEvent* uithread_shutdown_event) {
|
||||
CEF_REQUIRE_UIT();
|
||||
|
||||
sm_main_delegate_->ShutdownOnUIThread();
|
||||
|
||||
std::move(shutdown_on_ui_thread).Run();
|
||||
if (IsCefRuntime())
|
||||
CefMainDelegate::UIThreadShutdown();
|
||||
|
||||
if (uithread_shutdown_event)
|
||||
uithread_shutdown_event->Signal();
|
||||
}
|
||||
|
||||
void CefMainRunner::FinalizeShutdown(base::OnceClosure finalize_shutdown) {
|
||||
if (content::RenderProcessHost::run_renderer_in_process() && IsCefRuntime()) {
|
||||
// Blocks until RenderProcess cleanup is complete.
|
||||
CefContentRendererClient::Get()->RunSingleProcessCleanup();
|
||||
}
|
||||
|
||||
if (browser_runner_.get()) {
|
||||
browser_runner_->Shutdown();
|
||||
browser_runner_.reset(nullptr);
|
||||
}
|
||||
|
||||
if (ui_thread_.get()) {
|
||||
// Blocks until the thread has stopped.
|
||||
ui_thread_->Stop();
|
||||
ui_thread_.reset();
|
||||
}
|
||||
|
||||
// Shut down the content runner.
|
||||
service_manager::MainShutdown(*sm_main_params_);
|
||||
|
||||
sm_main_params_.reset(nullptr);
|
||||
sm_main_delegate_.reset(nullptr);
|
||||
|
||||
std::move(finalize_shutdown).Run();
|
||||
if (IsCefRuntime())
|
||||
CefMainDelegate::MainThreadShutdown();
|
||||
|
||||
main_delegate_.reset(nullptr);
|
||||
runtime_type_ = RuntimeType::UNINITIALIZED;
|
||||
}
|
||||
103
libcef/browser/main_runner.h
Normal file
103
libcef/browser/main_runner.h
Normal file
@@ -0,0 +1,103 @@
|
||||
// Copyright 2020 The Chromium Embedded Framework Authors.
|
||||
// Portions copyright 2014 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.
|
||||
|
||||
#ifndef CEF_LIBCEF_BROWSER_MAIN_RUNNER_H_
|
||||
#define CEF_LIBCEF_BROWSER_MAIN_RUNNER_H_
|
||||
#pragma once
|
||||
|
||||
#include "libcef/common/main_delegate.h"
|
||||
|
||||
#include "base/callback_forward.h"
|
||||
#include "base/macros.h"
|
||||
#include "content/public/browser/browser_main_runner.h"
|
||||
|
||||
namespace base {
|
||||
class WaitableEvent;
|
||||
}
|
||||
|
||||
namespace content {
|
||||
class ContentMainDelegate;
|
||||
class ContentServiceManagerMainDelegate;
|
||||
struct MainFunctionParams;
|
||||
} // namespace content
|
||||
|
||||
namespace service_manager {
|
||||
struct MainParams;
|
||||
}
|
||||
|
||||
class CefUIThread;
|
||||
|
||||
// Manages the main process lifespan and related objects.
|
||||
class CefMainRunner : public CefMainDelegate::Runner {
|
||||
public:
|
||||
CefMainRunner(bool multi_threaded_message_loop, bool external_message_pump);
|
||||
~CefMainRunner();
|
||||
|
||||
// Called from CefContext::Initialize.
|
||||
bool Initialize(CefSettings* settings,
|
||||
CefRefPtr<CefApp> application,
|
||||
const CefMainArgs& args,
|
||||
void* windows_sandbox_info,
|
||||
bool* initialized,
|
||||
base::OnceClosure context_initialized);
|
||||
|
||||
// Called from CefContext::Shutdown.
|
||||
void Shutdown(base::OnceClosure shutdown_on_ui_thread,
|
||||
base::OnceClosure finalize_shutdown);
|
||||
|
||||
bool IsCefRuntime() const { return runtime_type_ == RuntimeType::CEF; }
|
||||
|
||||
// Called from CefExecuteProcess.
|
||||
static int RunAsHelperProcess(const CefMainArgs& args,
|
||||
CefRefPtr<CefApp> application,
|
||||
void* windows_sandbox_info);
|
||||
|
||||
private:
|
||||
// Called from Initialize().
|
||||
void CefRuntimeInitialize(CefSettings* settings, CefRefPtr<CefApp> app);
|
||||
int ContentMainInitialize(const CefMainArgs& args,
|
||||
void* windows_sandbox_info,
|
||||
int* no_sandbox);
|
||||
bool ContentMainRun(bool* initialized, base::OnceClosure context_initialized);
|
||||
|
||||
// CefMainDelegate::Runner methods:
|
||||
void PreCreateMainMessageLoop() override;
|
||||
int RunMainProcess(
|
||||
const content::MainFunctionParams& main_function_params) override;
|
||||
|
||||
// Create the UI thread when running with multi-threaded message loop mode.
|
||||
bool CreateUIThread(base::OnceClosure setup_callback);
|
||||
|
||||
// Called on the UI thread after the context is initialized.
|
||||
void OnContextInitialized(base::OnceClosure context_initialized);
|
||||
|
||||
// Performs shutdown actions that need to occur on the UI thread before any
|
||||
// threads are destroyed.
|
||||
void FinishShutdownOnUIThread(base::OnceClosure shutdown_on_ui_thread,
|
||||
base::WaitableEvent* uithread_shutdown_event);
|
||||
|
||||
// Destroys the runtime and related objects.
|
||||
void FinalizeShutdown(base::OnceClosure finalize_shutdown);
|
||||
|
||||
const bool multi_threaded_message_loop_;
|
||||
const bool external_message_pump_;
|
||||
|
||||
enum class RuntimeType {
|
||||
UNINITIALIZED,
|
||||
CEF,
|
||||
};
|
||||
RuntimeType runtime_type_ = RuntimeType::UNINITIALIZED;
|
||||
|
||||
std::unique_ptr<content::ContentMainDelegate> main_delegate_;
|
||||
std::unique_ptr<content::ContentServiceManagerMainDelegate> sm_main_delegate_;
|
||||
std::unique_ptr<service_manager::MainParams> sm_main_params_;
|
||||
|
||||
std::unique_ptr<content::BrowserMainRunner> browser_runner_;
|
||||
std::unique_ptr<CefUIThread> ui_thread_;
|
||||
|
||||
DISALLOW_COPY_AND_ASSIGN(CefMainRunner);
|
||||
};
|
||||
|
||||
#endif // CEF_LIBCEF_BROWSER_MAIN_RUNNER_H_
|
||||
Reference in New Issue
Block a user