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-rw-r--r--third_party/libjingle/files/talk/base/socketpool.cc261
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diff --git a/third_party/libjingle/files/talk/base/socketpool.cc b/third_party/libjingle/files/talk/base/socketpool.cc
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--- a/third_party/libjingle/files/talk/base/socketpool.cc
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@@ -1,261 +0,0 @@
-/*
- * libjingle
- * Copyright 2004--2005, Google Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
- * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <errno.h>
-
-#include "talk/base/asyncsocket.h"
-#include "talk/base/logging.h"
-#include "talk/base/socketfactory.h"
-#include "talk/base/socketpool.h"
-#include "talk/base/socketstream.h"
-
-namespace talk_base {
-
-///////////////////////////////////////////////////////////////////////////////
-// StreamCache - Caches a set of open streams, defers creation to a separate
-// StreamPool.
-///////////////////////////////////////////////////////////////////////////////
-
-StreamCache::StreamCache(StreamPool* pool) : pool_(pool) {
-}
-
-StreamCache::~StreamCache() {
- for (ConnectedList::iterator it = active_.begin(); it != active_.end();
- ++it) {
- delete it->second;
- }
- for (ConnectedList::iterator it = cached_.begin(); it != cached_.end();
- ++it) {
- delete it->second;
- }
-}
-
-StreamInterface* StreamCache::RequestConnectedStream(
- const SocketAddress& remote, int* err) {
- LOG_F(LS_VERBOSE) << "(" << remote.ToString() << ")";
- for (ConnectedList::iterator it = cached_.begin(); it != cached_.end();
- ++it) {
- if (remote == it->first) {
- it->second->SignalEvent.disconnect(this);
- // Move from cached_ to active_
- active_.push_front(*it);
- cached_.erase(it);
- if (err)
- *err = 0;
- LOG_F(LS_VERBOSE) << "Providing cached stream";
- return active_.front().second;
- }
- }
- if (StreamInterface* stream = pool_->RequestConnectedStream(remote, err)) {
- // We track active streams so that we can remember their address
- active_.push_front(ConnectedStream(remote, stream));
- LOG_F(LS_VERBOSE) << "Providing new stream";
- return active_.front().second;
- }
- return NULL;
-}
-
-void StreamCache::ReturnConnectedStream(StreamInterface* stream) {
- for (ConnectedList::iterator it = active_.begin(); it != active_.end();
- ++it) {
- if (stream == it->second) {
- LOG_F(LS_VERBOSE) << "(" << it->first.ToString() << ")";
- if (stream->GetState() == SS_CLOSED) {
- // Return closed streams
- LOG_F(LS_VERBOSE) << "Returning closed stream";
- pool_->ReturnConnectedStream(it->second);
- } else {
- // Monitor open streams
- stream->SignalEvent.connect(this, &StreamCache::OnStreamEvent);
- LOG_F(LS_VERBOSE) << "Caching stream";
- cached_.push_front(*it);
- }
- active_.erase(it);
- return;
- }
- }
- ASSERT(false);
-}
-
-void StreamCache::OnStreamEvent(StreamInterface* stream, int events, int err) {
- if ((events & SE_CLOSE) == 0) {
- LOG_F(LS_WARNING) << "(" << events << ", " << err
- << ") received non-close event";
- return;
- }
- for (ConnectedList::iterator it = cached_.begin(); it != cached_.end();
- ++it) {
- if (stream == it->second) {
- LOG_F(LS_VERBOSE) << "(" << it->first.ToString() << ")";
- // We don't cache closed streams, so return it.
- it->second->SignalEvent.disconnect(this);
- LOG_F(LS_VERBOSE) << "Returning closed stream";
- pool_->ReturnConnectedStream(it->second);
- cached_.erase(it);
- return;
- }
- }
- ASSERT(false);
-}
-
-//////////////////////////////////////////////////////////////////////
-// NewSocketPool
-//////////////////////////////////////////////////////////////////////
-
-NewSocketPool::NewSocketPool(SocketFactory* factory) : factory_(factory) {
-}
-
-NewSocketPool::~NewSocketPool() {
- for (size_t i = 0; i < used_.size(); ++i) {
- delete used_[i];
- }
-}
-
-StreamInterface*
-NewSocketPool::RequestConnectedStream(const SocketAddress& remote, int* err) {
- AsyncSocket* socket = factory_->CreateAsyncSocket(SOCK_STREAM);
- if (!socket) {
- if (err)
- *err = -1;
- return NULL;
- }
- if ((socket->Connect(remote) != 0) && !socket->IsBlocking()) {
- if (err)
- *err = socket->GetError();
- delete socket;
- return NULL;
- }
- if (err)
- *err = 0;
- return new SocketStream(socket);
-}
-
-void
-NewSocketPool::ReturnConnectedStream(StreamInterface* stream) {
- used_.push_back(stream);
-}
-
-//////////////////////////////////////////////////////////////////////
-// ReuseSocketPool
-//////////////////////////////////////////////////////////////////////
-
-ReuseSocketPool::ReuseSocketPool(SocketFactory* factory, AsyncSocket* socket)
- : factory_(factory), stream_(NULL) {
- stream_ = socket ? new SocketStream(socket) : NULL;
-}
-
-ReuseSocketPool::~ReuseSocketPool() {
- delete stream_;
-}
-
-void
-ReuseSocketPool::setSocket(AsyncSocket* socket) {
- ASSERT(false); // TODO: need ref-counting to make this work
- delete stream_;
- stream_ = socket ? new SocketStream(socket) : NULL;
-}
-
-StreamInterface*
-ReuseSocketPool::RequestConnectedStream(const SocketAddress& remote, int* err) {
- if (!stream_) {
- LOG(LS_INFO) << "ReuseSocketPool - Creating new socket";
- AsyncSocket* socket = factory_->CreateAsyncSocket(SOCK_STREAM);
- if (!socket) {
- if (err)
- *err = -1;
- return NULL;
- }
- stream_ = new SocketStream(socket);
- }
- if ((stream_->GetState() == SS_OPEN) &&
- (stream_->GetSocket()->GetRemoteAddress() == remote)) {
- LOG(LS_INFO) << "ReuseSocketPool - Reusing connection to: "
- << remote.ToString();
- } else {
- stream_->Close();
- if ((stream_->GetSocket()->Connect(remote) != 0)
- && !stream_->GetSocket()->IsBlocking()) {
- if (err)
- *err = stream_->GetSocket()->GetError();
- return NULL;
- } else {
- LOG(LS_INFO) << "ReuseSocketPool - Opening connection to: "
- << remote.ToString();
- }
- }
- if (err)
- *err = 0;
- return stream_;
-}
-
-void
-ReuseSocketPool::ReturnConnectedStream(StreamInterface* stream) {
- // Note: this might not be true with the advent of setSocket
- ASSERT(stream == stream_);
-}
-
-///////////////////////////////////////////////////////////////////////////////
-// LoggingPoolAdapter - Adapts a StreamPool to supply streams with attached
-// LoggingAdapters.
-///////////////////////////////////////////////////////////////////////////////
-
-LoggingPoolAdapter::LoggingPoolAdapter(
- StreamPool* pool, LoggingSeverity level, const std::string& label,
- bool binary_mode)
- : pool_(pool), level_(level), label_(label), binary_mode_(binary_mode) {
-}
-
-LoggingPoolAdapter::~LoggingPoolAdapter() {
- for (StreamList::iterator it = recycle_bin_.begin();
- it != recycle_bin_.end(); ++it) {
- delete *it;
- }
-}
-
-StreamInterface* LoggingPoolAdapter::RequestConnectedStream(
- const SocketAddress& remote, int* err) {
- if (StreamInterface* stream = pool_->RequestConnectedStream(remote, err)) {
- if (recycle_bin_.empty()) {
- return new LoggingAdapter(stream, level_, label_, binary_mode_);
- }
- LoggingAdapter* logging = recycle_bin_.front();
- recycle_bin_.pop_front();
- logging->Attach(stream);
- return logging;
- }
- return NULL;
-}
-
-void LoggingPoolAdapter::ReturnConnectedStream(StreamInterface* stream) {
- LoggingAdapter* logging = static_cast<LoggingAdapter*>(stream);
- pool_->ReturnConnectedStream(logging->Detach());
- recycle_bin_.push_back(logging);
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-} // namespace talk_base
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