Extracted NetLog class's inner enum types into their own enum classes and

net/socket/tcp_socket_posix.cc

 // Copyright 2013 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 "net/socket/tcp_socket.h"
 
 #include <errno.h>
 #include <netinet/tcp.h>
 #include <sys/socket.h>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/posix/eintr_wrapper.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/task_runner_util.h"
 #include "base/threading/worker_pool.h"
 #include "base/time/default_tick_clock.h"
 #include "net/base/address_list.h"
 #include "net/base/io_buffer.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_errors.h"
 #include "net/base/network_activity_monitor.h"
 #include "net/base/network_change_notifier.h"
 #include "net/base/sockaddr_storage.h"
+#include "net/log/net_log_event_type.h"
+#include "net/log/net_log_source_type.h"
 #include "net/socket/socket_net_log_params.h"
 #include "net/socket/socket_posix.h"
 
 // If we don't have a definition for TCPI_OPT_SYN_DATA, create one.
 #ifndef TCPI_OPT_SYN_DATA
 #define TCPI_OPT_SYN_DATA 32
 #endif
 
 namespace net {
 
@@ skipping 104 matching lines @@
     NetLog* net_log,
     const NetLog::Source& source)
     : socket_performance_watcher_(std::move(socket_performance_watcher)),
       tick_clock_(new base::DefaultTickClock()),
       rtt_notifications_minimum_interval_(base::TimeDelta::FromSeconds(1)),
       use_tcp_fastopen_(false),
       tcp_fastopen_write_attempted_(false),
       tcp_fastopen_connected_(false),
       tcp_fastopen_status_(TCP_FASTOPEN_STATUS_UNKNOWN),
       logging_multiple_connect_attempts_(false),
-      net_log_(BoundNetLog::Make(net_log, NetLog::SOURCE_SOCKET)) {
-  net_log_.BeginEvent(NetLog::TYPE_SOCKET_ALIVE,
+      net_log_(BoundNetLog::Make(net_log, NetLogSourceType::SOCKET)) {
+  net_log_.BeginEvent(NetLogEventType::SOCKET_ALIVE,
                       source.ToEventParametersCallback());
 }
 
 TCPSocketPosix::~TCPSocketPosix() {
-  net_log_.EndEvent(NetLog::TYPE_SOCKET_ALIVE);
+  net_log_.EndEvent(NetLogEventType::SOCKET_ALIVE);
   Close();
 }
 
 int TCPSocketPosix::Open(AddressFamily family) {
   DCHECK(!socket_);
   socket_.reset(new SocketPosix);
   int rv = socket_->Open(ConvertAddressFamily(family));
   if (rv != OK)
     socket_.reset();
   return rv;
@@ skipping 33 matching lines @@
 }
 
 int TCPSocketPosix::Accept(std::unique_ptr<TCPSocketPosix>* tcp_socket,
                            IPEndPoint* address,
                            const CompletionCallback& callback) {
   DCHECK(tcp_socket);
   DCHECK(!callback.is_null());
   DCHECK(socket_);
   DCHECK(!accept_socket_);
 
-  net_log_.BeginEvent(NetLog::TYPE_TCP_ACCEPT);
+  net_log_.BeginEvent(NetLogEventType::TCP_ACCEPT);
 
   int rv = socket_->Accept(
       &accept_socket_,
       base::Bind(&TCPSocketPosix::AcceptCompleted, base::Unretained(this),
                  tcp_socket, address, callback));
   if (rv != ERR_IO_PENDING)
     rv = HandleAcceptCompleted(tcp_socket, address, rv);
   return rv;
 }
 
 int TCPSocketPosix::Connect(const IPEndPoint& address,
                             const CompletionCallback& callback) {
   DCHECK(socket_);
 
   if (!logging_multiple_connect_attempts_)
     LogConnectBegin(AddressList(address));
 
-  net_log_.BeginEvent(NetLog::TYPE_TCP_CONNECT_ATTEMPT,
+  net_log_.BeginEvent(NetLogEventType::TCP_CONNECT_ATTEMPT,
                       CreateNetLogIPEndPointCallback(&address));
 
   SockaddrStorage storage;
   if (!address.ToSockAddr(storage.addr, &storage.addr_len))
     return ERR_ADDRESS_INVALID;
 
   if (use_tcp_fastopen_) {
     // With TCP FastOpen, we pretend that the socket is connected.
     DCHECK(!tcp_fastopen_write_attempted_);
     socket_->SetPeerAddress(storage);
@@ skipping 255 matching lines @@
 }
 
 int TCPSocketPosix::HandleAcceptCompleted(
     std::unique_ptr<TCPSocketPosix>* tcp_socket,
     IPEndPoint* address,
     int rv) {
   if (rv == OK)
     rv = BuildTcpSocketPosix(tcp_socket, address);
 
   if (rv == OK) {
-    net_log_.EndEvent(NetLog::TYPE_TCP_ACCEPT,
+    net_log_.EndEvent(NetLogEventType::TCP_ACCEPT,
                       CreateNetLogIPEndPointCallback(address));
   } else {
-    net_log_.EndEventWithNetErrorCode(NetLog::TYPE_TCP_ACCEPT, rv);
+    net_log_.EndEventWithNetErrorCode(NetLogEventType::TCP_ACCEPT, rv);
   }
 
   return rv;
 }
 
 int TCPSocketPosix::BuildTcpSocketPosix(
     std::unique_ptr<TCPSocketPosix>* tcp_socket,
     IPEndPoint* address) {
   DCHECK(accept_socket_);
 
@@ skipping 12 matching lines @@
 
 void TCPSocketPosix::ConnectCompleted(const CompletionCallback& callback,
                                       int rv) {
   DCHECK_NE(ERR_IO_PENDING, rv);
   callback.Run(HandleConnectCompleted(rv));
 }
 
 int TCPSocketPosix::HandleConnectCompleted(int rv) {
   // Log the end of this attempt (and any OS error it threw).
   if (rv != OK) {
-    net_log_.EndEvent(NetLog::TYPE_TCP_CONNECT_ATTEMPT,
+    net_log_.EndEvent(NetLogEventType::TCP_CONNECT_ATTEMPT,
                       NetLog::IntCallback("os_error", errno));
   } else {
-    net_log_.EndEvent(NetLog::TYPE_TCP_CONNECT_ATTEMPT);
+    net_log_.EndEvent(NetLogEventType::TCP_CONNECT_ATTEMPT);
     NotifySocketPerformanceWatcher();
   }
 
   // Give a more specific error when the user is offline.
   if (rv == ERR_ADDRESS_UNREACHABLE && NetworkChangeNotifier::IsOffline())
     rv = ERR_INTERNET_DISCONNECTED;
 
   if (!logging_multiple_connect_attempts_)
     LogConnectEnd(rv);
 
   return rv;
 }
 
 void TCPSocketPosix::LogConnectBegin(const AddressList& addresses) const {
-  net_log_.BeginEvent(NetLog::TYPE_TCP_CONNECT,
+  net_log_.BeginEvent(NetLogEventType::TCP_CONNECT,
                       addresses.CreateNetLogCallback());
 }
 
 void TCPSocketPosix::LogConnectEnd(int net_error) const {
   if (net_error != OK) {
-    net_log_.EndEventWithNetErrorCode(NetLog::TYPE_TCP_CONNECT, net_error);
+    net_log_.EndEventWithNetErrorCode(NetLogEventType::TCP_CONNECT, net_error);
     return;
   }
 
   SockaddrStorage storage;
   int rv = socket_->GetLocalAddress(&storage);
   if (rv != OK) {
     PLOG(ERROR) << "GetLocalAddress() [rv: " << rv << "] error: ";
     NOTREACHED();
-    net_log_.EndEventWithNetErrorCode(NetLog::TYPE_TCP_CONNECT, rv);
+    net_log_.EndEventWithNetErrorCode(NetLogEventType::TCP_CONNECT, rv);
     return;
   }
 
-  net_log_.EndEvent(NetLog::TYPE_TCP_CONNECT,
+  net_log_.EndEvent(NetLogEventType::TCP_CONNECT,
                     CreateNetLogSourceAddressCallback(storage.addr,
                                                       storage.addr_len));
 }
 
 void TCPSocketPosix::ReadCompleted(const scoped_refptr<IOBuffer>& buf,
                                    const CompletionCallback& callback,
                                    int rv) {
   DCHECK_NE(ERR_IO_PENDING, rv);
   callback.Run(HandleReadCompleted(buf.get(), rv));
 }
@@ skipping 10 matching lines @@
     // such as turning off TCP FastOpen on more specific errors, and
     // re-attempting TCP FastOpen after a certain amount of time has passed.
     if (rv >= 0)
       tcp_fastopen_connected_ = true;
     else
       g_tcp_fastopen_has_failed = true;
     UpdateTCPFastOpenStatusAfterRead();
   }
 
   if (rv < 0) {
-    net_log_.AddEvent(NetLog::TYPE_SOCKET_READ_ERROR,
+    net_log_.AddEvent(NetLogEventType::SOCKET_READ_ERROR,
                       CreateNetLogSocketErrorCallback(rv, errno));
     return rv;
   }
 
   // Notify the watcher only if at least 1 byte was read.
   if (rv > 0)
     NotifySocketPerformanceWatcher();
 
-  net_log_.AddByteTransferEvent(NetLog::TYPE_SOCKET_BYTES_RECEIVED, rv,
+  net_log_.AddByteTransferEvent(NetLogEventType::SOCKET_BYTES_RECEIVED, rv,
                                 buf->data());
   NetworkActivityMonitor::GetInstance()->IncrementBytesReceived(rv);
 
   return rv;
 }
 
 void TCPSocketPosix::WriteCompleted(const scoped_refptr<IOBuffer>& buf,
                                     const CompletionCallback& callback,
                                     int rv) {
   DCHECK_NE(ERR_IO_PENDING, rv);
   callback.Run(HandleWriteCompleted(buf.get(), rv));
 }
 
 int TCPSocketPosix::HandleWriteCompleted(IOBuffer* buf, int rv) {
   if (rv < 0) {
     if (tcp_fastopen_write_attempted_ && !tcp_fastopen_connected_) {
       // TCP FastOpen connect-with-write was attempted, and the write failed
       // for unknown reasons. Record status and (conservatively) turn off
       // TCP FastOpen for all subsequent connections.
       // TODO (jri): This currently results in conservative behavior, where TCP
       // FastOpen is turned off on _any_ error. Implement optimizations,
       // such as turning off TCP FastOpen on more specific errors, and
       // re-attempting TCP FastOpen after a certain amount of time has passed.
       tcp_fastopen_status_ = TCP_FASTOPEN_ERROR;
       g_tcp_fastopen_has_failed = true;
     }
-    net_log_.AddEvent(NetLog::TYPE_SOCKET_WRITE_ERROR,
+    net_log_.AddEvent(NetLogEventType::SOCKET_WRITE_ERROR,
                       CreateNetLogSocketErrorCallback(rv, errno));
     return rv;
   }
 
   // Notify the watcher only if at least 1 byte was written.
   if (rv > 0)
     NotifySocketPerformanceWatcher();
 
-  net_log_.AddByteTransferEvent(NetLog::TYPE_SOCKET_BYTES_SENT, rv,
+  net_log_.AddByteTransferEvent(NetLogEventType::SOCKET_BYTES_SENT, rv,
                                 buf->data());
   NetworkActivityMonitor::GetInstance()->IncrementBytesSent(rv);
   return rv;
 }
 
 int TCPSocketPosix::TcpFastOpenWrite(IOBuffer* buf,
                                      int buf_len,
                                      const CompletionCallback& callback) {
   SockaddrStorage storage;
   int rv = socket_->GetPeerAddress(&storage);
@@ skipping 146 matching lines @@
     if (info.tcpi_rtt > 0) {
       *out_rtt = base::TimeDelta::FromMicroseconds(info.tcpi_rtt);
       return true;
     }
   }
 #endif  // defined(TCP_INFO)
   return false;
 }
 
 }  // namespace net