Add net log entries that summarize transmit and receive byte counts.

net/socket/tcp_client_socket_libevent.cc

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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_client_socket_libevent.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <netdb.h>
 #include <sys/socket.h>
 #include <netinet/tcp.h>
@@ skipping 103 matching lines @@
       return true;
     default:
       return false;
   }
 }
 
 }  // namespace
 
 //-----------------------------------------------------------------------------
 
-TCPClientSocketLibevent::TCPClientSocketLibevent(const AddressList& addresses)
+TCPClientSocketLibevent::TCPClientSocketLibevent(const AddressList& addresses,
+                                                 net::NetLog* net_log)
     : socket_(kInvalidSocket),
       addresses_(addresses),
       current_ai_(addresses_.head()),
       waiting_connect_(false),
       read_watcher_(this),
       write_watcher_(this),
       read_callback_(NULL),
-      write_callback_(NULL) {
+      write_callback_(NULL),
+      net_log_(BoundNetLog::Make(net_log, NetLog::SOURCE_SOCKET)) {
 }
 
 TCPClientSocketLibevent::~TCPClientSocketLibevent() {
   Disconnect();
+  net_log_.AddEvent(NetLog::TYPE_TCP_SOCKET_DONE);
 }
 
-int TCPClientSocketLibevent::Connect(CompletionCallback* callback,
-                                     const BoundNetLog& net_log) {
+int TCPClientSocketLibevent::Connect(CompletionCallback* callback) {
   // If already connected, then just return OK.
   if (socket_ != kInvalidSocket)
     return OK;
 
   DCHECK(!waiting_connect_);
-  DCHECK(!net_log_.net_log());
 
   TRACE_EVENT_BEGIN("socket.connect", this, "");
 
-  net_log.BeginEvent(NetLog::TYPE_TCP_CONNECT);
+  net_log_.BeginEvent(NetLog::TYPE_TCP_CONNECT);
 
   int rv = DoConnect();
 
   if (rv == ERR_IO_PENDING) {
     // Synchronous operation not supported.
     DCHECK(callback);
 
-    net_log_ = net_log;
     waiting_connect_ = true;
     write_callback_ = callback;
   } else {
     TRACE_EVENT_END("socket.connect", this, "");
-    net_log.EndEvent(NetLog::TYPE_TCP_CONNECT);
+    net_log_.EndEvent(NetLog::TYPE_TCP_CONNECT);
   }
 
   return rv;
 }
 
 int TCPClientSocketLibevent::DoConnect() {
   while (true) {
     DCHECK(current_ai_);
 
     int rv = CreateSocket(current_ai_);
@@ skipping 95 matching lines @@
   DCHECK(!waiting_connect_);
   DCHECK(!read_callback_);
   // Synchronous operation not supported
   DCHECK(callback);
   DCHECK_GT(buf_len, 0);
 
   TRACE_EVENT_BEGIN("socket.read", this, "");
   int nread = HANDLE_EINTR(read(socket_, buf->data(), buf_len));
   if (nread >= 0) {
     TRACE_EVENT_END("socket.read", this, StringPrintf("%d bytes", nread));
+    net_log_.AddEventWithInteger(NetLog::TYPE_SOCKET_BYTES_RECEIVED, nread);
     return nread;
   }
   if (errno != EAGAIN && errno != EWOULDBLOCK) {
     DLOG(INFO) << "read failed, errno " << errno;
     return MapPosixError(errno);
   }
 
   if (!MessageLoopForIO::current()->WatchFileDescriptor(
           socket_, true, MessageLoopForIO::WATCH_READ,
           &read_socket_watcher_, &read_watcher_)) {
@@ skipping 14 matching lines @@
   DCHECK(!waiting_connect_);
   DCHECK(!write_callback_);
   // Synchronous operation not supported
   DCHECK(callback);
   DCHECK_GT(buf_len, 0);
 
   TRACE_EVENT_BEGIN("socket.write", this, "");
   int nwrite = HANDLE_EINTR(write(socket_, buf->data(), buf_len));
   if (nwrite >= 0) {
     TRACE_EVENT_END("socket.write", this, StringPrintf("%d bytes", nwrite));
+    net_log_.AddEventWithInteger(NetLog::TYPE_SOCKET_BYTES_SENT, nwrite);
     return nwrite;
   }
   if (errno != EAGAIN && errno != EWOULDBLOCK)
     return MapPosixError(errno);
 
   if (!MessageLoopForIO::current()->WatchFileDescriptor(
           socket_, true, MessageLoopForIO::WATCH_WRITE,
           &write_socket_watcher_, &write_watcher_)) {
     DLOG(INFO) << "WatchFileDescriptor failed on write, errno " << errno;
     return MapPosixError(errno);
@@ skipping 72 matching lines @@
     os_error = errno;
 
   if (os_error == EINPROGRESS || os_error == EALREADY) {
     NOTREACHED();  // This indicates a bug in libevent or our code.
     result = ERR_IO_PENDING;
   } else if (current_ai_->ai_next && ShouldTryNextAddress(os_error)) {
     // This address failed, try next one in list.
     const addrinfo* next = current_ai_->ai_next;
     Disconnect();
     current_ai_ = next;
-    BoundNetLog net_log = net_log_;
-    net_log_ = BoundNetLog();
     TRACE_EVENT_END("socket.connect", this, "");
-    net_log.EndEvent(NetLog::TYPE_TCP_CONNECT);
-    result = Connect(write_callback_, net_log);
+    net_log_.EndEvent(NetLog::TYPE_TCP_CONNECT);
+    result = Connect(write_callback_);
   } else {
     result = MapConnectError(os_error);
     bool ok = write_socket_watcher_.StopWatchingFileDescriptor();
     DCHECK(ok);
     waiting_connect_ = false;
     TRACE_EVENT_END("socket.connect", this, "");
     net_log_.EndEvent(NetLog::TYPE_TCP_CONNECT);
-    net_log_ = BoundNetLog();
   }
 
   if (result != ERR_IO_PENDING) {
     DoWriteCallback(result);
   }
 }
 
 void TCPClientSocketLibevent::DidCompleteRead() {
   int bytes_transferred;
   bytes_transferred = HANDLE_EINTR(read(socket_, read_buf_->data(),
                                         read_buf_len_));
 
   int result;
   if (bytes_transferred >= 0) {
     TRACE_EVENT_END("socket.read", this,
                     StringPrintf("%d bytes", bytes_transferred));
     result = bytes_transferred;
+    net_log_.AddEventWithInteger(NetLog::TYPE_SOCKET_BYTES_RECEIVED, result);
   } else {
     result = MapPosixError(errno);
   }
 
   if (result != ERR_IO_PENDING) {
     read_buf_ = NULL;
     read_buf_len_ = 0;
     bool ok = read_socket_watcher_.StopWatchingFileDescriptor();
     DCHECK(ok);
     DoReadCallback(result);
   }
 }
 
 void TCPClientSocketLibevent::DidCompleteWrite() {
   int bytes_transferred;
   bytes_transferred = HANDLE_EINTR(write(socket_, write_buf_->data(),
                                          write_buf_len_));
 
   int result;
   if (bytes_transferred >= 0) {
     result = bytes_transferred;
     TRACE_EVENT_END("socket.write", this,
                     StringPrintf("%d bytes", bytes_transferred));
+    net_log_.AddEventWithInteger(NetLog::TYPE_SOCKET_BYTES_SENT, result);
   } else {
     result = MapPosixError(errno);
   }
 
   if (result != ERR_IO_PENDING) {
     write_buf_ = NULL;
     write_buf_len_ = 0;
     write_socket_watcher_.StopWatchingFileDescriptor();
     DoWriteCallback(result);
   }
 }
 
 int TCPClientSocketLibevent::GetPeerAddress(AddressList* address) const {
   DCHECK(address);
   if (!current_ai_)
     return ERR_UNEXPECTED;
   address->Copy(current_ai_, false);
   return OK;
 }
 
 }  // namespace net