Making the me2me host compiling and running on Windows. This includes making it a window applicatio…

remoting/host/host_event_logger_win.cc

+// Copyright (c) 2012 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 "remoting/host/host_event_logger.h"
+
+#include <windows.h>
+#include <string>
+#include <vector>
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/string16.h"
+#include "base/utf_string_conversions.h"
+#include "net/base/ip_endpoint.h"
+#include "remoting/host/chromoting_host.h"
+#include "remoting/host/host_status_observer.h"
+
+#include "remoting_host.h"
+
+namespace remoting {
+
+namespace {
+
+class HostEventLoggerWin : public HostEventLogger, public HostStatusObserver {
+ public:
+  HostEventLoggerWin(ChromotingHost* host,
+                     const std::string& application_name);
+
+  virtual ~HostEventLoggerWin();
+
+  // HostStatusObserver implementation.  These methods will be called from the
+  // network thread.
+  virtual void OnClientAuthenticated(const std::string& jid) OVERRIDE;
+  virtual void OnClientDisconnected(const std::string& jid) OVERRIDE;
+  virtual void OnAccessDenied(const std::string& jid) OVERRIDE;
+  virtual void OnClientRouteChange(
+      const std::string& jid,
+      const std::string& channel_name,
+      const net::IPEndPoint& remote_end_point,
+      const net::IPEndPoint& local_end_point) OVERRIDE;
+  virtual void OnShutdown() OVERRIDE;
+
+ private:
+  void Log(DWORD event_id, const std::string& string);
+  void Log(DWORD event_id, const std::vector<string16>& strings);

[Lambros, 2012/03/01 21:15:41]

Style guide generally prohibits overloading.  Better to rename one of these :(

[alexeypa (please no reviews), 2012/03/01 22:32:41]

Done.

+
+  scoped_refptr<ChromotingHost> host_;
+
+  // The handle of the application event log.
+  HANDLE event_log_;
+
+  DISALLOW_COPY_AND_ASSIGN(HostEventLoggerWin);
+};
+
+} //namespace
+
+HostEventLoggerWin::HostEventLoggerWin(ChromotingHost* host,
+                                           const std::string& application_name)
+    : host_(host),
+      event_log_(NULL) {
+  event_log_ = RegisterEventSourceW(NULL,
+                                    ASCIIToUTF16(application_name).c_str());
+  if (event_log_ != NULL) {
+    host_->AddStatusObserver(this);
+  } else {
+    LOG_GETLASTERROR(ERROR) << "Failed to register the event source: "
+                            << application_name;
+  }
+}
+
+HostEventLoggerWin::~HostEventLoggerWin() {
+  if (event_log_ != NULL) {
+    host_->RemoveStatusObserver(this);
+    DeregisterEventSource(event_log_);
+  }
+}
+
+void HostEventLoggerWin::OnClientAuthenticated(const std::string& jid) {
+  Log(MSG_HOST_CLIENT_CONNECTED, jid);
+}
+
+void HostEventLoggerWin::OnClientDisconnected(const std::string& jid) {
+  Log(MSG_HOST_CLIENT_DISCONNECTED, jid);
+}
+
+void HostEventLoggerWin::OnAccessDenied(const std::string& jid) {
+  Log(MSG_HOST_CLIENT_ACCESS_DENIED, jid);
+}
+
+void HostEventLoggerWin::OnClientRouteChange(
+    const std::string& jid,
+    const std::string& channel_name,
+    const net::IPEndPoint& remote_end_point,
+    const net::IPEndPoint& local_end_point) {
+  std::vector<string16> strings(4);
+  strings[0] = ASCIIToUTF16(jid);
+  strings[1] = ASCIIToUTF16(remote_end_point.ToString());
+  strings[2] = ASCIIToUTF16(local_end_point.ToString());
+  strings[3] = ASCIIToUTF16(channel_name);
+  Log(MSG_HOST_CLIENT_ROUTING_CHANGED, strings);
+}
+
+void HostEventLoggerWin::OnShutdown() {
+}
+
+void HostEventLoggerWin::Log(DWORD event_id,
+                             const std::vector<string16>& strings) {
+  if (event_log_ == NULL)
+    return;
+
+  std::vector<const WCHAR*> raw_strings(strings.size());
+  for (size_t i = 0; i < strings.size(); ++i) {
+    raw_strings[i] = strings[i].c_str();

[Wez, 2012/03/01 18:03:06]

nit: Add comment to clarify that each string16 retains ownership of the c_str()
version here?

[alexeypa (please no reviews), 2012/03/01 20:33:58]

Done.

+  }
+
+  if (!ReportEventW(event_log_,
+                    EVENTLOG_INFORMATION_TYPE,

[Wez, 2012/03/01 18:03:06]

nit: This should arguably be EVENTLOG_ERROR_TYPE for OnAccessDenied() events.

[alexeypa (please no reviews), 2012/03/01 20:33:58]

Done.

+                    HOST_CATEGORY,
+                    event_id,
+                    NULL,
+                    static_cast<WORD>(raw_strings.size()),
+                    0,
+                    &raw_strings[0],
+                    NULL)) {
+    LOG_GETLASTERROR(ERROR) << "Failed to write an event to the event log";
+  }
+}
+
+void HostEventLoggerWin::Log(DWORD event_id, const std::string& string) {
+  std::vector<string16> strings;
+  strings.push_back(ASCIIToUTF16(string));
+  Log(event_id, strings);
+}
+
+// static
+scoped_ptr<HostEventLogger> HostEventLogger::Create(
+    ChromotingHost* host, const std::string& application_name) {
+  return scoped_ptr<HostEventLogger>(
+      new HostEventLoggerWin(host, application_name));
+}
+
+}  // namespace remoting