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diff --git a/third_party/libwebrtc/examples/peerconnection/client/main.cc b/third_party/libwebrtc/examples/peerconnection/client/main.cc
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+/*
+ * Copyright 2012 The WebRTC Project Authors. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+// clang-format off
+// clang formating would change include order.
+#include <windows.h>
+#include <shellapi.h> // must come after windows.h
+// clang-format on
+
+#include <string>
+#include <vector>
+
+#include "absl/flags/parse.h"
+#include "examples/peerconnection/client/conductor.h"
+#include "examples/peerconnection/client/flag_defs.h"
+#include "examples/peerconnection/client/main_wnd.h"
+#include "examples/peerconnection/client/peer_connection_client.h"
+#include "rtc_base/checks.h"
+#include "rtc_base/ssl_adapter.h"
+#include "rtc_base/string_utils.h" // For ToUtf8
+#include "rtc_base/win32_socket_init.h"
+#include "system_wrappers/include/field_trial.h"
+#include "test/field_trial.h"
+
+namespace {
+// A helper class to translate Windows command line arguments into UTF8,
+// which then allows us to just pass them to the flags system.
+// This encapsulates all the work of getting the command line and translating
+// it to an array of 8-bit strings; all you have to do is create one of these,
+// and then call argc() and argv().
+class WindowsCommandLineArguments {
+ public:
+ WindowsCommandLineArguments();
+
+ WindowsCommandLineArguments(const WindowsCommandLineArguments&) = delete;
+ WindowsCommandLineArguments& operator=(WindowsCommandLineArguments&) = delete;
+
+ int argc() { return argv_.size(); }
+ char** argv() { return argv_.data(); }
+
+ private:
+ // Owned argument strings.
+ std::vector<std::string> args_;
+ // Pointers, to get layout compatible with char** argv.
+ std::vector<char*> argv_;
+};
+
+WindowsCommandLineArguments::WindowsCommandLineArguments() {
+ // start by getting the command line.
+ LPCWSTR command_line = ::GetCommandLineW();
+ // now, convert it to a list of wide char strings.
+ int argc;
+ LPWSTR* wide_argv = ::CommandLineToArgvW(command_line, &argc);
+
+ // iterate over the returned wide strings;
+ for (int i = 0; i < argc; ++i) {
+ args_.push_back(rtc::ToUtf8(wide_argv[i], wcslen(wide_argv[i])));
+ // make sure the argv array points to the string data.
+ argv_.push_back(const_cast<char*>(args_.back().c_str()));
+ }
+ LocalFree(wide_argv);
+}
+
+} // namespace
+int PASCAL wWinMain(HINSTANCE instance,
+ HINSTANCE prev_instance,
+ wchar_t* cmd_line,
+ int cmd_show) {
+ rtc::WinsockInitializer winsock_init;
+ rtc::PhysicalSocketServer ss;
+ rtc::AutoSocketServerThread main_thread(&ss);
+
+ WindowsCommandLineArguments win_args;
+ int argc = win_args.argc();
+ char** argv = win_args.argv();
+
+ absl::ParseCommandLine(argc, argv);
+
+ // InitFieldTrialsFromString stores the char*, so the char array must outlive
+ // the application.
+ const std::string forced_field_trials =
+ absl::GetFlag(FLAGS_force_fieldtrials);
+ webrtc::field_trial::InitFieldTrialsFromString(forced_field_trials.c_str());
+
+ // Abort if the user specifies a port that is outside the allowed
+ // range [1, 65535].
+ if ((absl::GetFlag(FLAGS_port) < 1) || (absl::GetFlag(FLAGS_port) > 65535)) {
+ printf("Error: %i is not a valid port.\n", absl::GetFlag(FLAGS_port));
+ return -1;
+ }
+
+ const std::string server = absl::GetFlag(FLAGS_server);
+ MainWnd wnd(server.c_str(), absl::GetFlag(FLAGS_port),
+ absl::GetFlag(FLAGS_autoconnect), absl::GetFlag(FLAGS_autocall));
+ if (!wnd.Create()) {
+ RTC_DCHECK_NOTREACHED();
+ return -1;
+ }
+
+ rtc::InitializeSSL();
+ PeerConnectionClient client;
+ auto conductor = rtc::make_ref_counted<Conductor>(&client, &wnd);
+
+ // Main loop.
+ MSG msg;
+ BOOL gm;
+ while ((gm = ::GetMessage(&msg, NULL, 0, 0)) != 0 && gm != -1) {
+ if (!wnd.PreTranslateMessage(&msg)) {
+ ::TranslateMessage(&msg);
+ ::DispatchMessage(&msg);
+ }
+ }
+
+ if (conductor->connection_active() || client.is_connected()) {
+ while ((conductor->connection_active() || client.is_connected()) &&
+ (gm = ::GetMessage(&msg, NULL, 0, 0)) != 0 && gm != -1) {
+ if (!wnd.PreTranslateMessage(&msg)) {
+ ::TranslateMessage(&msg);
+ ::DispatchMessage(&msg);
+ }
+ }
+ }
+
+ rtc::CleanupSSL();
+ return 0;
+}