[email protected] | e34400c3 | 2012-01-24 02:49:33 | [diff] [blame] | 1 | // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "net/socket/client_socket_pool_base.h" |
| 6 | |
| 7 | #include "base/compiler_specific.h" |
[email protected] | fd4fe0b | 2010-02-08 23:02:15 | [diff] [blame] | 8 | #include "base/format_macros.h" |
[email protected] | 5e6efa5 | 2011-06-27 17:26:41 | [diff] [blame] | 9 | #include "base/logging.h" |
[email protected] | 18b57741 | 2013-07-18 04:19:15 | [diff] [blame] | 10 | #include "base/message_loop/message_loop.h" |
[email protected] | 835d7c8 | 2010-10-14 04:38:38 | [diff] [blame] | 11 | #include "base/metrics/stats_counters.h" |
[email protected] | 7286e3fc | 2011-07-19 22:13:24 | [diff] [blame] | 12 | #include "base/stl_util.h" |
[email protected] | fc9be580 | 2013-06-11 10:56:51 | [diff] [blame] | 13 | #include "base/strings/string_util.h" |
[email protected] | f002abb | 2013-06-28 02:30:21 | [diff] [blame] | 14 | #include "base/time/time.h" |
[email protected] | 9349cfb | 2010-08-31 18:00:53 | [diff] [blame] | 15 | #include "base/values.h" |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 16 | #include "net/base/net_errors.h" |
[email protected] | f002abb | 2013-06-28 02:30:21 | [diff] [blame] | 17 | #include "net/base/net_log.h" |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 18 | #include "net/socket/client_socket_handle.h" |
| 19 | |
| 20 | using base::TimeDelta; |
| 21 | |
[email protected] | b021ece6 | 2013-06-11 11:06:33 | [diff] [blame] | 22 | namespace net { |
| 23 | |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 24 | namespace { |
| 25 | |
[email protected] | 64770b7d | 2011-11-16 04:30:41 | [diff] [blame] | 26 | // Indicate whether we should enable idle socket cleanup timer. When timer is |
| 27 | // disabled, sockets are closed next time a socket request is made. |
| 28 | bool g_cleanup_timer_enabled = true; |
| 29 | |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 30 | // The timeout value, in seconds, used to clean up idle sockets that can't be |
| 31 | // reused. |
| 32 | // |
| 33 | // Note: It's important to close idle sockets that have received data as soon |
| 34 | // as possible because the received data may cause BSOD on Windows XP under |
| 35 | // some conditions. See http://crbug.com/4606. |
| 36 | const int kCleanupInterval = 10; // DO NOT INCREASE THIS TIMEOUT. |
| 37 | |
[email protected] | c847c2a | 2011-04-08 13:56:14 | [diff] [blame] | 38 | // Indicate whether or not we should establish a new transport layer connection |
| 39 | // after a certain timeout has passed without receiving an ACK. |
[email protected] | 06d9404 | 2010-08-25 01:45:22 | [diff] [blame] | 40 | bool g_connect_backup_jobs_enabled = true; |
| 41 | |
[email protected] | b021ece6 | 2013-06-11 11:06:33 | [diff] [blame] | 42 | // Compares the effective priority of two results, and returns 1 if |request1| |
| 43 | // has greater effective priority than |request2|, 0 if they have the same |
| 44 | // effective priority, and -1 if |request2| has the greater effective priority. |
| 45 | // Requests with |ignore_limits| set have higher effective priority than those |
| 46 | // without. If both requests have |ignore_limits| set/unset, then the request |
| 47 | // with the highest Pririoty has the highest effective priority. Does not take |
| 48 | // into account the fact that Requests are serviced in FIFO order if they would |
| 49 | // otherwise have the same priority. |
| 50 | int CompareEffectiveRequestPriority( |
| 51 | const internal::ClientSocketPoolBaseHelper::Request& request1, |
| 52 | const internal::ClientSocketPoolBaseHelper::Request& request2) { |
| 53 | if (request1.ignore_limits() && !request2.ignore_limits()) |
| 54 | return 1; |
| 55 | if (!request1.ignore_limits() && request2.ignore_limits()) |
| 56 | return -1; |
| 57 | if (request1.priority() > request2.priority()) |
| 58 | return 1; |
| 59 | if (request1.priority() < request2.priority()) |
| 60 | return -1; |
| 61 | return 0; |
| 62 | } |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 63 | |
[email protected] | b021ece6 | 2013-06-11 11:06:33 | [diff] [blame] | 64 | } // namespace |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 65 | |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 66 | ConnectJob::ConnectJob(const std::string& group_name, |
[email protected] | 974ebd6 | 2009-08-03 23:14:34 | [diff] [blame] | 67 | base::TimeDelta timeout_duration, |
[email protected] | 3f6007ab | 2013-08-22 19:45:39 | [diff] [blame^] | 68 | RequestPriority priority, |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 69 | Delegate* delegate, |
[email protected] | 9e743cd | 2010-03-16 07:03:53 | [diff] [blame] | 70 | const BoundNetLog& net_log) |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 71 | : group_name_(group_name), |
[email protected] | 974ebd6 | 2009-08-03 23:14:34 | [diff] [blame] | 72 | timeout_duration_(timeout_duration), |
[email protected] | 3f6007ab | 2013-08-22 19:45:39 | [diff] [blame^] | 73 | priority_(priority), |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 74 | delegate_(delegate), |
[email protected] | a2006ece | 2010-04-23 16:44:02 | [diff] [blame] | 75 | net_log_(net_log), |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 76 | idle_(true) { |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 77 | DCHECK(!group_name.empty()); |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 78 | DCHECK(delegate); |
[email protected] | e9d7d25 | 2013-01-04 02:33:17 | [diff] [blame] | 79 | net_log.BeginEvent(NetLog::TYPE_SOCKET_POOL_CONNECT_JOB, |
| 80 | NetLog::StringCallback("group_name", &group_name_)); |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 81 | } |
| 82 | |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 83 | ConnectJob::~ConnectJob() { |
[email protected] | 3aa4af04 | 2012-06-14 21:02:31 | [diff] [blame] | 84 | net_log().EndEvent(NetLog::TYPE_SOCKET_POOL_CONNECT_JOB); |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 85 | } |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 86 | |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 87 | scoped_ptr<StreamSocket> ConnectJob::PassSocket() { |
| 88 | return socket_.Pass(); |
| 89 | } |
| 90 | |
[email protected] | 974ebd6 | 2009-08-03 23:14:34 | [diff] [blame] | 91 | int ConnectJob::Connect() { |
| 92 | if (timeout_duration_ != base::TimeDelta()) |
[email protected] | d323a17 | 2011-09-02 18:23:02 | [diff] [blame] | 93 | timer_.Start(FROM_HERE, timeout_duration_, this, &ConnectJob::OnTimeout); |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 94 | |
[email protected] | a2006ece | 2010-04-23 16:44:02 | [diff] [blame] | 95 | idle_ = false; |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 96 | |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 97 | LogConnectStart(); |
| 98 | |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 99 | int rv = ConnectInternal(); |
| 100 | |
| 101 | if (rv != ERR_IO_PENDING) { |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 102 | LogConnectCompletion(rv); |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 103 | delegate_ = NULL; |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 104 | } |
| 105 | |
| 106 | return rv; |
| 107 | } |
| 108 | |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 109 | void ConnectJob::SetSocket(scoped_ptr<StreamSocket> socket) { |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 110 | if (socket) { |
[email protected] | 3aa4af04 | 2012-06-14 21:02:31 | [diff] [blame] | 111 | net_log().AddEvent(NetLog::TYPE_CONNECT_JOB_SET_SOCKET, |
| 112 | socket->NetLog().source().ToEventParametersCallback()); |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 113 | } |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 114 | socket_ = socket.Pass(); |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 115 | } |
| 116 | |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 117 | void ConnectJob::NotifyDelegateOfCompletion(int rv) { |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 118 | // The delegate will own |this|. |
[email protected] | 1083335 | 2013-02-12 19:39:50 | [diff] [blame] | 119 | Delegate* delegate = delegate_; |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 120 | delegate_ = NULL; |
| 121 | |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 122 | LogConnectCompletion(rv); |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 123 | delegate->OnConnectJobComplete(rv, this); |
[email protected] | 974ebd6 | 2009-08-03 23:14:34 | [diff] [blame] | 124 | } |
| 125 | |
[email protected] | a796bcec | 2010-03-22 17:17:26 | [diff] [blame] | 126 | void ConnectJob::ResetTimer(base::TimeDelta remaining_time) { |
| 127 | timer_.Stop(); |
[email protected] | d323a17 | 2011-09-02 18:23:02 | [diff] [blame] | 128 | timer_.Start(FROM_HERE, remaining_time, this, &ConnectJob::OnTimeout); |
[email protected] | a796bcec | 2010-03-22 17:17:26 | [diff] [blame] | 129 | } |
| 130 | |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 131 | void ConnectJob::LogConnectStart() { |
[email protected] | 034df0f3 | 2013-01-07 23:17:48 | [diff] [blame] | 132 | connect_timing_.connect_start = base::TimeTicks::Now(); |
[email protected] | e9d7d25 | 2013-01-04 02:33:17 | [diff] [blame] | 133 | net_log().BeginEvent(NetLog::TYPE_SOCKET_POOL_CONNECT_JOB_CONNECT); |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 134 | } |
| 135 | |
| 136 | void ConnectJob::LogConnectCompletion(int net_error) { |
[email protected] | 034df0f3 | 2013-01-07 23:17:48 | [diff] [blame] | 137 | connect_timing_.connect_end = base::TimeTicks::Now(); |
[email protected] | d7fd178 | 2011-02-08 19:16:43 | [diff] [blame] | 138 | net_log().EndEventWithNetErrorCode( |
| 139 | NetLog::TYPE_SOCKET_POOL_CONNECT_JOB_CONNECT, net_error); |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 140 | } |
| 141 | |
[email protected] | 974ebd6 | 2009-08-03 23:14:34 | [diff] [blame] | 142 | void ConnectJob::OnTimeout() { |
[email protected] | 6e713f0 | 2009-08-06 02:56:40 | [diff] [blame] | 143 | // Make sure the socket is NULL before calling into |delegate|. |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 144 | SetSocket(scoped_ptr<StreamSocket>()); |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 145 | |
[email protected] | 3aa4af04 | 2012-06-14 21:02:31 | [diff] [blame] | 146 | net_log_.AddEvent(NetLog::TYPE_SOCKET_POOL_CONNECT_JOB_TIMED_OUT); |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 147 | |
| 148 | NotifyDelegateOfCompletion(ERR_TIMED_OUT); |
[email protected] | 974ebd6 | 2009-08-03 23:14:34 | [diff] [blame] | 149 | } |
| 150 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 151 | namespace internal { |
| 152 | |
[email protected] | fd4fe0b | 2010-02-08 23:02:15 | [diff] [blame] | 153 | ClientSocketPoolBaseHelper::Request::Request( |
| 154 | ClientSocketHandle* handle, |
[email protected] | 49639fa | 2011-12-20 23:22:41 | [diff] [blame] | 155 | const CompletionCallback& callback, |
[email protected] | fd4fe0b | 2010-02-08 23:02:15 | [diff] [blame] | 156 | RequestPriority priority, |
[email protected] | 5acdce1 | 2011-03-30 13:00:20 | [diff] [blame] | 157 | bool ignore_limits, |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 158 | Flags flags, |
[email protected] | 9e743cd | 2010-03-16 07:03:53 | [diff] [blame] | 159 | const BoundNetLog& net_log) |
[email protected] | 2431756e | 2010-09-29 20:26:13 | [diff] [blame] | 160 | : handle_(handle), |
| 161 | callback_(callback), |
| 162 | priority_(priority), |
[email protected] | 5acdce1 | 2011-03-30 13:00:20 | [diff] [blame] | 163 | ignore_limits_(ignore_limits), |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 164 | flags_(flags), |
[email protected] | 9e743cd | 2010-03-16 07:03:53 | [diff] [blame] | 165 | net_log_(net_log) {} |
[email protected] | fd4fe0b | 2010-02-08 23:02:15 | [diff] [blame] | 166 | |
| 167 | ClientSocketPoolBaseHelper::Request::~Request() {} |
| 168 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 169 | ClientSocketPoolBaseHelper::ClientSocketPoolBaseHelper( |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 170 | int max_sockets, |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 171 | int max_sockets_per_group, |
[email protected] | 9bf28db | 2009-08-29 01:35:16 | [diff] [blame] | 172 | base::TimeDelta unused_idle_socket_timeout, |
| 173 | base::TimeDelta used_idle_socket_timeout, |
[email protected] | 66761b95 | 2010-06-25 21:30:38 | [diff] [blame] | 174 | ConnectJobFactory* connect_job_factory) |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 175 | : idle_socket_count_(0), |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 176 | connecting_socket_count_(0), |
| 177 | handed_out_socket_count_(0), |
| 178 | max_sockets_(max_sockets), |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 179 | max_sockets_per_group_(max_sockets_per_group), |
[email protected] | 64770b7d | 2011-11-16 04:30:41 | [diff] [blame] | 180 | use_cleanup_timer_(g_cleanup_timer_enabled), |
[email protected] | 9bf28db | 2009-08-29 01:35:16 | [diff] [blame] | 181 | unused_idle_socket_timeout_(unused_idle_socket_timeout), |
| 182 | used_idle_socket_timeout_(used_idle_socket_timeout), |
[email protected] | 100d5fb9 | 2009-12-21 21:08:35 | [diff] [blame] | 183 | connect_job_factory_(connect_job_factory), |
[email protected] | 06d9404 | 2010-08-25 01:45:22 | [diff] [blame] | 184 | connect_backup_jobs_enabled_(false), |
[email protected] | 2431756e | 2010-09-29 20:26:13 | [diff] [blame] | 185 | pool_generation_number_(0), |
[email protected] | aa249b5 | 2013-04-30 01:04:32 | [diff] [blame] | 186 | weak_factory_(this) { |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 187 | DCHECK_LE(0, max_sockets_per_group); |
| 188 | DCHECK_LE(max_sockets_per_group, max_sockets); |
[email protected] | a554a826 | 2010-05-20 00:13:52 | [diff] [blame] | 189 | |
[email protected] | 232a581 | 2011-03-04 22:42:08 | [diff] [blame] | 190 | NetworkChangeNotifier::AddIPAddressObserver(this); |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 191 | } |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 192 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 193 | ClientSocketPoolBaseHelper::~ClientSocketPoolBaseHelper() { |
[email protected] | 2431756e | 2010-09-29 20:26:13 | [diff] [blame] | 194 | // Clean up any idle sockets and pending connect jobs. Assert that we have no |
| 195 | // remaining active sockets or pending requests. They should have all been |
| 196 | // cleaned up prior to |this| being destroyed. |
[email protected] | 7af985a | 2012-12-14 22:40:42 | [diff] [blame] | 197 | FlushWithError(ERR_ABORTED); |
[email protected] | 2431756e | 2010-09-29 20:26:13 | [diff] [blame] | 198 | DCHECK(group_map_.empty()); |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 199 | DCHECK(pending_callback_map_.empty()); |
[email protected] | 4d3b05d | 2010-01-27 21:27:29 | [diff] [blame] | 200 | DCHECK_EQ(0, connecting_socket_count_); |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 201 | CHECK(higher_layer_pools_.empty()); |
[email protected] | a554a826 | 2010-05-20 00:13:52 | [diff] [blame] | 202 | |
[email protected] | 232a581 | 2011-03-04 22:42:08 | [diff] [blame] | 203 | NetworkChangeNotifier::RemoveIPAddressObserver(this); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 204 | } |
| 205 | |
[email protected] | 2a848e0e | 2012-08-09 22:27:31 | [diff] [blame] | 206 | ClientSocketPoolBaseHelper::CallbackResultPair::CallbackResultPair() |
| 207 | : result(OK) { |
| 208 | } |
| 209 | |
| 210 | ClientSocketPoolBaseHelper::CallbackResultPair::CallbackResultPair( |
| 211 | const CompletionCallback& callback_in, int result_in) |
| 212 | : callback(callback_in), |
| 213 | result(result_in) { |
| 214 | } |
| 215 | |
[email protected] | 49639fa | 2011-12-20 23:22:41 | [diff] [blame] | 216 | ClientSocketPoolBaseHelper::CallbackResultPair::~CallbackResultPair() {} |
| 217 | |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 218 | // static |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 219 | void ClientSocketPoolBaseHelper::InsertRequestIntoQueue( |
| 220 | const Request* r, RequestQueue* pending_requests) { |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 221 | RequestQueue::iterator it = pending_requests->begin(); |
[email protected] | b021ece6 | 2013-06-11 11:06:33 | [diff] [blame] | 222 | // TODO(mmenke): Should the network stack require requests with |
| 223 | // |ignore_limits| have the highest priority? |
| 224 | while (it != pending_requests->end() && |
| 225 | CompareEffectiveRequestPriority(*r, *(*it)) <= 0) { |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 226 | ++it; |
[email protected] | b021ece6 | 2013-06-11 11:06:33 | [diff] [blame] | 227 | } |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 228 | pending_requests->insert(it, r); |
| 229 | } |
| 230 | |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 231 | // static |
| 232 | const ClientSocketPoolBaseHelper::Request* |
| 233 | ClientSocketPoolBaseHelper::RemoveRequestFromQueue( |
[email protected] | 417da10 | 2011-03-11 17:45:05 | [diff] [blame] | 234 | const RequestQueue::iterator& it, Group* group) { |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 235 | const Request* req = *it; |
[email protected] | 3f00be8 | 2010-09-27 19:50:02 | [diff] [blame] | 236 | group->mutable_pending_requests()->erase(it); |
| 237 | // If there are no more requests, we kill the backup timer. |
| 238 | if (group->pending_requests().empty()) |
[email protected] | e4d9a972 | 2011-05-12 00:16:00 | [diff] [blame] | 239 | group->CleanupBackupJob(); |
[email protected] | fd7b7c9 | 2009-08-20 19:38:30 | [diff] [blame] | 240 | return req; |
| 241 | } |
| 242 | |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 243 | void ClientSocketPoolBaseHelper::AddLayeredPool(LayeredPool* pool) { |
| 244 | CHECK(pool); |
| 245 | CHECK(!ContainsKey(higher_layer_pools_, pool)); |
| 246 | higher_layer_pools_.insert(pool); |
| 247 | } |
| 248 | |
| 249 | void ClientSocketPoolBaseHelper::RemoveLayeredPool(LayeredPool* pool) { |
| 250 | CHECK(pool); |
| 251 | CHECK(ContainsKey(higher_layer_pools_, pool)); |
| 252 | higher_layer_pools_.erase(pool); |
| 253 | } |
| 254 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 255 | int ClientSocketPoolBaseHelper::RequestSocket( |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 256 | const std::string& group_name, |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 257 | const Request* request) { |
[email protected] | 49639fa | 2011-12-20 23:22:41 | [diff] [blame] | 258 | CHECK(!request->callback().is_null()); |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 259 | CHECK(request->handle()); |
| 260 | |
[email protected] | 64770b7d | 2011-11-16 04:30:41 | [diff] [blame] | 261 | // Cleanup any timed-out idle sockets if no timer is used. |
| 262 | if (!use_cleanup_timer_) |
| 263 | CleanupIdleSockets(false); |
| 264 | |
[email protected] | 3aa4af04 | 2012-06-14 21:02:31 | [diff] [blame] | 265 | request->net_log().BeginEvent(NetLog::TYPE_SOCKET_POOL); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 266 | Group* group = GetOrCreateGroup(group_name); |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 267 | |
[email protected] | fd4fe0b | 2010-02-08 23:02:15 | [diff] [blame] | 268 | int rv = RequestSocketInternal(group_name, request); |
[email protected] | e7e9932 | 2010-05-04 23:30:17 | [diff] [blame] | 269 | if (rv != ERR_IO_PENDING) { |
[email protected] | d7fd178 | 2011-02-08 19:16:43 | [diff] [blame] | 270 | request->net_log().EndEventWithNetErrorCode(NetLog::TYPE_SOCKET_POOL, rv); |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 271 | CHECK(!request->handle()->is_initialized()); |
[email protected] | e7e9932 | 2010-05-04 23:30:17 | [diff] [blame] | 272 | delete request; |
| 273 | } else { |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 274 | InsertRequestIntoQueue(request, group->mutable_pending_requests()); |
[email protected] | 58e562f | 2013-04-22 17:32:20 | [diff] [blame] | 275 | // Have to do this asynchronously, as closing sockets in higher level pools |
| 276 | // call back in to |this|, which will cause all sorts of fun and exciting |
| 277 | // re-entrancy issues if the socket pool is doing something else at the |
| 278 | // time. |
| 279 | if (group->IsStalledOnPoolMaxSockets(max_sockets_per_group_)) { |
[email protected] | 2da659e | 2013-05-23 20:51:34 | [diff] [blame] | 280 | base::MessageLoop::current()->PostTask( |
[email protected] | 58e562f | 2013-04-22 17:32:20 | [diff] [blame] | 281 | FROM_HERE, |
| 282 | base::Bind( |
| 283 | &ClientSocketPoolBaseHelper::TryToCloseSocketsInLayeredPools, |
| 284 | weak_factory_.GetWeakPtr())); |
| 285 | } |
[email protected] | e7e9932 | 2010-05-04 23:30:17 | [diff] [blame] | 286 | } |
[email protected] | fd4fe0b | 2010-02-08 23:02:15 | [diff] [blame] | 287 | return rv; |
| 288 | } |
| 289 | |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 290 | void ClientSocketPoolBaseHelper::RequestSockets( |
| 291 | const std::string& group_name, |
| 292 | const Request& request, |
| 293 | int num_sockets) { |
[email protected] | 49639fa | 2011-12-20 23:22:41 | [diff] [blame] | 294 | DCHECK(request.callback().is_null()); |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 295 | DCHECK(!request.handle()); |
| 296 | |
[email protected] | 64770b7d | 2011-11-16 04:30:41 | [diff] [blame] | 297 | // Cleanup any timed out idle sockets if no timer is used. |
| 298 | if (!use_cleanup_timer_) |
| 299 | CleanupIdleSockets(false); |
| 300 | |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 301 | if (num_sockets > max_sockets_per_group_) { |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 302 | num_sockets = max_sockets_per_group_; |
| 303 | } |
| 304 | |
| 305 | request.net_log().BeginEvent( |
| 306 | NetLog::TYPE_SOCKET_POOL_CONNECTING_N_SOCKETS, |
[email protected] | 3aa4af04 | 2012-06-14 21:02:31 | [diff] [blame] | 307 | NetLog::IntegerCallback("num_sockets", num_sockets)); |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 308 | |
| 309 | Group* group = GetOrCreateGroup(group_name); |
| 310 | |
[email protected] | 3c819f52 | 2010-12-02 02:03:12 | [diff] [blame] | 311 | // RequestSocketsInternal() may delete the group. |
| 312 | bool deleted_group = false; |
| 313 | |
[email protected] | d7fd178 | 2011-02-08 19:16:43 | [diff] [blame] | 314 | int rv = OK; |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 315 | for (int num_iterations_left = num_sockets; |
| 316 | group->NumActiveSocketSlots() < num_sockets && |
| 317 | num_iterations_left > 0 ; num_iterations_left--) { |
[email protected] | d7fd178 | 2011-02-08 19:16:43 | [diff] [blame] | 318 | rv = RequestSocketInternal(group_name, &request); |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 319 | if (rv < 0 && rv != ERR_IO_PENDING) { |
| 320 | // We're encountering a synchronous error. Give up. |
[email protected] | 3c819f52 | 2010-12-02 02:03:12 | [diff] [blame] | 321 | if (!ContainsKey(group_map_, group_name)) |
| 322 | deleted_group = true; |
| 323 | break; |
| 324 | } |
| 325 | if (!ContainsKey(group_map_, group_name)) { |
| 326 | // Unexpected. The group should only be getting deleted on synchronous |
| 327 | // error. |
| 328 | NOTREACHED(); |
| 329 | deleted_group = true; |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 330 | break; |
| 331 | } |
| 332 | } |
| 333 | |
[email protected] | 3c819f52 | 2010-12-02 02:03:12 | [diff] [blame] | 334 | if (!deleted_group && group->IsEmpty()) |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 335 | RemoveGroup(group_name); |
| 336 | |
[email protected] | d7fd178 | 2011-02-08 19:16:43 | [diff] [blame] | 337 | if (rv == ERR_IO_PENDING) |
| 338 | rv = OK; |
| 339 | request.net_log().EndEventWithNetErrorCode( |
| 340 | NetLog::TYPE_SOCKET_POOL_CONNECTING_N_SOCKETS, rv); |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 341 | } |
| 342 | |
[email protected] | fd4fe0b | 2010-02-08 23:02:15 | [diff] [blame] | 343 | int ClientSocketPoolBaseHelper::RequestSocketInternal( |
| 344 | const std::string& group_name, |
| 345 | const Request* request) { |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 346 | ClientSocketHandle* const handle = request->handle(); |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 347 | const bool preconnecting = !handle; |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 348 | Group* group = GetOrCreateGroup(group_name); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 349 | |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 350 | if (!(request->flags() & NO_IDLE_SOCKETS)) { |
| 351 | // Try to reuse a socket. |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 352 | if (AssignIdleSocketToRequest(request, group)) |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 353 | return OK; |
| 354 | } |
| 355 | |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 356 | // If there are more ConnectJobs than pending requests, don't need to do |
| 357 | // anything. Can just wait for the extra job to connect, and then assign it |
| 358 | // to the request. |
| 359 | if (!preconnecting && group->TryToUseUnassignedConnectJob()) |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 360 | return ERR_IO_PENDING; |
[email protected] | 6555210 | 2010-04-09 22:58:10 | [diff] [blame] | 361 | |
[email protected] | 43a21b8 | 2010-06-10 21:30:54 | [diff] [blame] | 362 | // Can we make another active socket now? |
[email protected] | 5acdce1 | 2011-03-30 13:00:20 | [diff] [blame] | 363 | if (!group->HasAvailableSocketSlot(max_sockets_per_group_) && |
| 364 | !request->ignore_limits()) { |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 365 | // TODO(willchan): Consider whether or not we need to close a socket in a |
| 366 | // higher layered group. I don't think this makes sense since we would just |
| 367 | // reuse that socket then if we needed one and wouldn't make it down to this |
| 368 | // layer. |
[email protected] | 43a21b8 | 2010-06-10 21:30:54 | [diff] [blame] | 369 | request->net_log().AddEvent( |
[email protected] | 3aa4af04 | 2012-06-14 21:02:31 | [diff] [blame] | 370 | NetLog::TYPE_SOCKET_POOL_STALLED_MAX_SOCKETS_PER_GROUP); |
[email protected] | 43a21b8 | 2010-06-10 21:30:54 | [diff] [blame] | 371 | return ERR_IO_PENDING; |
| 372 | } |
| 373 | |
[email protected] | 5acdce1 | 2011-03-30 13:00:20 | [diff] [blame] | 374 | if (ReachedMaxSocketsLimit() && !request->ignore_limits()) { |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 375 | // NOTE(mmenke): Wonder if we really need different code for each case |
| 376 | // here. Only reason for them now seems to be preconnects. |
[email protected] | 43a21b8 | 2010-06-10 21:30:54 | [diff] [blame] | 377 | if (idle_socket_count() > 0) { |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 378 | // There's an idle socket in this pool. Either that's because there's |
| 379 | // still one in this group, but we got here due to preconnecting bypassing |
| 380 | // idle sockets, or because there's an idle socket in another group. |
[email protected] | dcbe168a | 2010-12-02 03:14:46 | [diff] [blame] | 381 | bool closed = CloseOneIdleSocketExceptInGroup(group); |
| 382 | if (preconnecting && !closed) |
| 383 | return ERR_PRECONNECT_MAX_SOCKET_LIMIT; |
[email protected] | 43a21b8 | 2010-06-10 21:30:54 | [diff] [blame] | 384 | } else { |
[email protected] | 40dee91a | 2012-04-17 19:25:46 | [diff] [blame] | 385 | // We could check if we really have a stalled group here, but it requires |
| 386 | // a scan of all groups, so just flip a flag here, and do the check later. |
[email protected] | 3aa4af04 | 2012-06-14 21:02:31 | [diff] [blame] | 387 | request->net_log().AddEvent(NetLog::TYPE_SOCKET_POOL_STALLED_MAX_SOCKETS); |
[email protected] | 40dee91a | 2012-04-17 19:25:46 | [diff] [blame] | 388 | return ERR_IO_PENDING; |
[email protected] | 43a21b8 | 2010-06-10 21:30:54 | [diff] [blame] | 389 | } |
| 390 | } |
| 391 | |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 392 | // We couldn't find a socket to reuse, and there's space to allocate one, |
| 393 | // so allocate and connect a new one. |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 394 | scoped_ptr<ConnectJob> connect_job( |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 395 | connect_job_factory_->NewConnectJob(group_name, *request, this)); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 396 | |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 397 | int rv = connect_job->Connect(); |
| 398 | if (rv == OK) { |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 399 | LogBoundConnectJobToRequest(connect_job->net_log().source(), request); |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 400 | if (!preconnecting) { |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 401 | HandOutSocket(connect_job->PassSocket(), false /* not reused */, |
[email protected] | 034df0f3 | 2013-01-07 23:17:48 | [diff] [blame] | 402 | connect_job->connect_timing(), handle, base::TimeDelta(), |
| 403 | group, request->net_log()); |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 404 | } else { |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 405 | AddIdleSocket(connect_job->PassSocket(), group); |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 406 | } |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 407 | } else if (rv == ERR_IO_PENDING) { |
[email protected] | 6b624c6 | 2010-03-14 08:37:32 | [diff] [blame] | 408 | // If we don't have any sockets in this group, set a timer for potentially |
| 409 | // creating a new one. If the SYN is lost, this backup socket may complete |
| 410 | // before the slow socket, improving end user latency. |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 411 | if (connect_backup_jobs_enabled_ && |
[email protected] | e4d9a972 | 2011-05-12 00:16:00 | [diff] [blame] | 412 | group->IsEmpty() && !group->HasBackupJob()) { |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 413 | group->StartBackupSocketTimer(group_name, this); |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 414 | } |
[email protected] | 6b624c6 | 2010-03-14 08:37:32 | [diff] [blame] | 415 | |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 416 | connecting_socket_count_++; |
| 417 | |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 418 | group->AddJob(connect_job.Pass(), preconnecting); |
[email protected] | a2006ece | 2010-04-23 16:44:02 | [diff] [blame] | 419 | } else { |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 420 | LogBoundConnectJobToRequest(connect_job->net_log().source(), request); |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 421 | scoped_ptr<StreamSocket> error_socket; |
[email protected] | fd2e53e | 2011-01-14 20:40:52 | [diff] [blame] | 422 | if (!preconnecting) { |
| 423 | DCHECK(handle); |
| 424 | connect_job->GetAdditionalErrorState(handle); |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 425 | error_socket = connect_job->PassSocket(); |
[email protected] | fd2e53e | 2011-01-14 20:40:52 | [diff] [blame] | 426 | } |
[email protected] | e772db3f | 2010-07-12 18:11:13 | [diff] [blame] | 427 | if (error_socket) { |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 428 | HandOutSocket(error_socket.Pass(), false /* not reused */, |
[email protected] | 034df0f3 | 2013-01-07 23:17:48 | [diff] [blame] | 429 | connect_job->connect_timing(), handle, base::TimeDelta(), |
| 430 | group, request->net_log()); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 431 | } else if (group->IsEmpty()) { |
| 432 | RemoveGroup(group_name); |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 433 | } |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 434 | } |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 435 | |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 436 | return rv; |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 437 | } |
| 438 | |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 439 | bool ClientSocketPoolBaseHelper::AssignIdleSocketToRequest( |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 440 | const Request* request, Group* group) { |
[email protected] | e1b54dc | 2010-10-06 21:27:22 | [diff] [blame] | 441 | std::list<IdleSocket>* idle_sockets = group->mutable_idle_sockets(); |
| 442 | std::list<IdleSocket>::iterator idle_socket_it = idle_sockets->end(); |
| 443 | |
| 444 | // Iterate through the idle sockets forwards (oldest to newest) |
| 445 | // * Delete any disconnected ones. |
| 446 | // * If we find a used idle socket, assign to |idle_socket|. At the end, |
| 447 | // the |idle_socket_it| will be set to the newest used idle socket. |
| 448 | for (std::list<IdleSocket>::iterator it = idle_sockets->begin(); |
| 449 | it != idle_sockets->end();) { |
| 450 | if (!it->socket->IsConnectedAndIdle()) { |
| 451 | DecrementIdleCount(); |
| 452 | delete it->socket; |
| 453 | it = idle_sockets->erase(it); |
| 454 | continue; |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 455 | } |
[email protected] | e1b54dc | 2010-10-06 21:27:22 | [diff] [blame] | 456 | |
| 457 | if (it->socket->WasEverUsed()) { |
| 458 | // We found one we can reuse! |
[email protected] | e86df8dc | 2013-03-30 13:18:28 | [diff] [blame] | 459 | idle_socket_it = it; |
[email protected] | e1b54dc | 2010-10-06 21:27:22 | [diff] [blame] | 460 | } |
| 461 | |
| 462 | ++it; |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 463 | } |
[email protected] | e1b54dc | 2010-10-06 21:27:22 | [diff] [blame] | 464 | |
| 465 | // If we haven't found an idle socket, that means there are no used idle |
| 466 | // sockets. Pick the oldest (first) idle socket (FIFO). |
| 467 | |
| 468 | if (idle_socket_it == idle_sockets->end() && !idle_sockets->empty()) |
| 469 | idle_socket_it = idle_sockets->begin(); |
| 470 | |
| 471 | if (idle_socket_it != idle_sockets->end()) { |
| 472 | DecrementIdleCount(); |
| 473 | base::TimeDelta idle_time = |
| 474 | base::TimeTicks::Now() - idle_socket_it->start_time; |
| 475 | IdleSocket idle_socket = *idle_socket_it; |
| 476 | idle_sockets->erase(idle_socket_it); |
| 477 | HandOutSocket( |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 478 | scoped_ptr<StreamSocket>(idle_socket.socket), |
[email protected] | e1b54dc | 2010-10-06 21:27:22 | [diff] [blame] | 479 | idle_socket.socket->WasEverUsed(), |
[email protected] | 034df0f3 | 2013-01-07 23:17:48 | [diff] [blame] | 480 | LoadTimingInfo::ConnectTiming(), |
[email protected] | e1b54dc | 2010-10-06 21:27:22 | [diff] [blame] | 481 | request->handle(), |
| 482 | idle_time, |
| 483 | group, |
| 484 | request->net_log()); |
| 485 | return true; |
| 486 | } |
| 487 | |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 488 | return false; |
| 489 | } |
| 490 | |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 491 | // static |
| 492 | void ClientSocketPoolBaseHelper::LogBoundConnectJobToRequest( |
| 493 | const NetLog::Source& connect_job_source, const Request* request) { |
[email protected] | 3aa4af04 | 2012-06-14 21:02:31 | [diff] [blame] | 494 | request->net_log().AddEvent(NetLog::TYPE_SOCKET_POOL_BOUND_TO_CONNECT_JOB, |
| 495 | connect_job_source.ToEventParametersCallback()); |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 496 | } |
| 497 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 498 | void ClientSocketPoolBaseHelper::CancelRequest( |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 499 | const std::string& group_name, ClientSocketHandle* handle) { |
| 500 | PendingCallbackMap::iterator callback_it = pending_callback_map_.find(handle); |
| 501 | if (callback_it != pending_callback_map_.end()) { |
| 502 | int result = callback_it->second.result; |
| 503 | pending_callback_map_.erase(callback_it); |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 504 | scoped_ptr<StreamSocket> socket = handle->PassSocket(); |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 505 | if (socket) { |
| 506 | if (result != OK) |
| 507 | socket->Disconnect(); |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 508 | ReleaseSocket(handle->group_name(), socket.Pass(), handle->id()); |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 509 | } |
| 510 | return; |
| 511 | } |
[email protected] | b6501d3d | 2010-06-03 23:53:34 | [diff] [blame] | 512 | |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 513 | CHECK(ContainsKey(group_map_, group_name)); |
| 514 | |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 515 | Group* group = GetOrCreateGroup(group_name); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 516 | |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 517 | // Search pending_requests for matching handle. |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 518 | RequestQueue::iterator it = group->mutable_pending_requests()->begin(); |
| 519 | for (; it != group->pending_requests().end(); ++it) { |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 520 | if ((*it)->handle() == handle) { |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 521 | scoped_ptr<const Request> req(RemoveRequestFromQueue(it, group)); |
[email protected] | 3aa4af04 | 2012-06-14 21:02:31 | [diff] [blame] | 522 | req->net_log().AddEvent(NetLog::TYPE_CANCELLED); |
| 523 | req->net_log().EndEvent(NetLog::TYPE_SOCKET_POOL); |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 524 | |
[email protected] | b021ece6 | 2013-06-11 11:06:33 | [diff] [blame] | 525 | // We let the job run, unless we're at the socket limit and there is |
| 526 | // not another request waiting on the job. |
| 527 | if (group->jobs().size() > group->pending_requests().size() && |
| 528 | ReachedMaxSocketsLimit()) { |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 529 | RemoveConnectJob(*group->jobs().begin(), group); |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 530 | CheckForStalledSocketGroups(); |
[email protected] | 974ebd6 | 2009-08-03 23:14:34 | [diff] [blame] | 531 | } |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 532 | break; |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 533 | } |
| 534 | } |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 535 | } |
| 536 | |
[email protected] | 2abfe90a | 2010-08-25 17:49:51 | [diff] [blame] | 537 | bool ClientSocketPoolBaseHelper::HasGroup(const std::string& group_name) const { |
| 538 | return ContainsKey(group_map_, group_name); |
| 539 | } |
| 540 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 541 | void ClientSocketPoolBaseHelper::CloseIdleSockets() { |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 542 | CleanupIdleSockets(true); |
[email protected] | 06f9246 | 2010-08-31 19:24:14 | [diff] [blame] | 543 | DCHECK_EQ(0, idle_socket_count_); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 544 | } |
| 545 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 546 | int ClientSocketPoolBaseHelper::IdleSocketCountInGroup( |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 547 | const std::string& group_name) const { |
| 548 | GroupMap::const_iterator i = group_map_.find(group_name); |
| 549 | CHECK(i != group_map_.end()); |
| 550 | |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 551 | return i->second->idle_sockets().size(); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 552 | } |
| 553 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 554 | LoadState ClientSocketPoolBaseHelper::GetLoadState( |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 555 | const std::string& group_name, |
| 556 | const ClientSocketHandle* handle) const { |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 557 | if (ContainsKey(pending_callback_map_, handle)) |
| 558 | return LOAD_STATE_CONNECTING; |
| 559 | |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 560 | if (!ContainsKey(group_map_, group_name)) { |
| 561 | NOTREACHED() << "ClientSocketPool does not contain group: " << group_name |
| 562 | << " for handle: " << handle; |
| 563 | return LOAD_STATE_IDLE; |
| 564 | } |
| 565 | |
| 566 | // Can't use operator[] since it is non-const. |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 567 | const Group& group = *group_map_.find(group_name)->second; |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 568 | |
[email protected] | 03b7c8c | 2013-07-20 04:38:55 | [diff] [blame] | 569 | // Search the first group.jobs().size() |pending_requests| for |handle|. |
| 570 | // If it's farther back in the deque than that, it doesn't have a |
| 571 | // corresponding ConnectJob. |
| 572 | size_t connect_jobs = group.jobs().size(); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 573 | RequestQueue::const_iterator it = group.pending_requests().begin(); |
[email protected] | 03b7c8c | 2013-07-20 04:38:55 | [diff] [blame] | 574 | for (size_t i = 0; it != group.pending_requests().end() && i < connect_jobs; |
| 575 | ++it, ++i) { |
| 576 | if ((*it)->handle() != handle) |
| 577 | continue; |
| 578 | |
| 579 | // Just return the state of the farthest along ConnectJob for the first |
| 580 | // group.jobs().size() pending requests. |
| 581 | LoadState max_state = LOAD_STATE_IDLE; |
| 582 | for (ConnectJobSet::const_iterator job_it = group.jobs().begin(); |
| 583 | job_it != group.jobs().end(); ++job_it) { |
| 584 | max_state = std::max(max_state, (*job_it)->GetLoadState()); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 585 | } |
[email protected] | 03b7c8c | 2013-07-20 04:38:55 | [diff] [blame] | 586 | return max_state; |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 587 | } |
| 588 | |
[email protected] | 03b7c8c | 2013-07-20 04:38:55 | [diff] [blame] | 589 | if (group.IsStalledOnPoolMaxSockets(max_sockets_per_group_)) |
| 590 | return LOAD_STATE_WAITING_FOR_STALLED_SOCKET_POOL; |
| 591 | return LOAD_STATE_WAITING_FOR_AVAILABLE_SOCKET; |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 592 | } |
| 593 | |
[email protected] | 1083335 | 2013-02-12 19:39:50 | [diff] [blame] | 594 | base::DictionaryValue* ClientSocketPoolBaseHelper::GetInfoAsValue( |
[email protected] | 59d7a5a | 2010-08-30 16:44:27 | [diff] [blame] | 595 | const std::string& name, const std::string& type) const { |
[email protected] | 1083335 | 2013-02-12 19:39:50 | [diff] [blame] | 596 | base::DictionaryValue* dict = new base::DictionaryValue(); |
[email protected] | 59d7a5a | 2010-08-30 16:44:27 | [diff] [blame] | 597 | dict->SetString("name", name); |
| 598 | dict->SetString("type", type); |
| 599 | dict->SetInteger("handed_out_socket_count", handed_out_socket_count_); |
| 600 | dict->SetInteger("connecting_socket_count", connecting_socket_count_); |
| 601 | dict->SetInteger("idle_socket_count", idle_socket_count_); |
| 602 | dict->SetInteger("max_socket_count", max_sockets_); |
| 603 | dict->SetInteger("max_sockets_per_group", max_sockets_per_group_); |
| 604 | dict->SetInteger("pool_generation_number", pool_generation_number_); |
| 605 | |
| 606 | if (group_map_.empty()) |
| 607 | return dict; |
| 608 | |
[email protected] | 1083335 | 2013-02-12 19:39:50 | [diff] [blame] | 609 | base::DictionaryValue* all_groups_dict = new base::DictionaryValue(); |
[email protected] | 59d7a5a | 2010-08-30 16:44:27 | [diff] [blame] | 610 | for (GroupMap::const_iterator it = group_map_.begin(); |
| 611 | it != group_map_.end(); it++) { |
| 612 | const Group* group = it->second; |
[email protected] | 1083335 | 2013-02-12 19:39:50 | [diff] [blame] | 613 | base::DictionaryValue* group_dict = new base::DictionaryValue(); |
[email protected] | 59d7a5a | 2010-08-30 16:44:27 | [diff] [blame] | 614 | |
| 615 | group_dict->SetInteger("pending_request_count", |
| 616 | group->pending_requests().size()); |
| 617 | if (!group->pending_requests().empty()) { |
| 618 | group_dict->SetInteger("top_pending_priority", |
| 619 | group->TopPendingPriority()); |
| 620 | } |
| 621 | |
| 622 | group_dict->SetInteger("active_socket_count", group->active_socket_count()); |
[email protected] | 0496f9a3 | 2010-09-30 16:08:07 | [diff] [blame] | 623 | |
[email protected] | 1083335 | 2013-02-12 19:39:50 | [diff] [blame] | 624 | base::ListValue* idle_socket_list = new base::ListValue(); |
[email protected] | e1b54dc | 2010-10-06 21:27:22 | [diff] [blame] | 625 | std::list<IdleSocket>::const_iterator idle_socket; |
[email protected] | 0496f9a3 | 2010-09-30 16:08:07 | [diff] [blame] | 626 | for (idle_socket = group->idle_sockets().begin(); |
| 627 | idle_socket != group->idle_sockets().end(); |
| 628 | idle_socket++) { |
| 629 | int source_id = idle_socket->socket->NetLog().source().id; |
[email protected] | 1083335 | 2013-02-12 19:39:50 | [diff] [blame] | 630 | idle_socket_list->Append(new base::FundamentalValue(source_id)); |
[email protected] | 0496f9a3 | 2010-09-30 16:08:07 | [diff] [blame] | 631 | } |
| 632 | group_dict->Set("idle_sockets", idle_socket_list); |
| 633 | |
[email protected] | 1083335 | 2013-02-12 19:39:50 | [diff] [blame] | 634 | base::ListValue* connect_jobs_list = new base::ListValue(); |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 635 | std::set<ConnectJob*>::const_iterator job = group->jobs().begin(); |
[email protected] | 0496f9a3 | 2010-09-30 16:08:07 | [diff] [blame] | 636 | for (job = group->jobs().begin(); job != group->jobs().end(); job++) { |
| 637 | int source_id = (*job)->net_log().source().id; |
[email protected] | 1083335 | 2013-02-12 19:39:50 | [diff] [blame] | 638 | connect_jobs_list->Append(new base::FundamentalValue(source_id)); |
[email protected] | 0496f9a3 | 2010-09-30 16:08:07 | [diff] [blame] | 639 | } |
| 640 | group_dict->Set("connect_jobs", connect_jobs_list); |
[email protected] | 59d7a5a | 2010-08-30 16:44:27 | [diff] [blame] | 641 | |
| 642 | group_dict->SetBoolean("is_stalled", |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 643 | group->IsStalledOnPoolMaxSockets( |
| 644 | max_sockets_per_group_)); |
[email protected] | e4d9a972 | 2011-05-12 00:16:00 | [diff] [blame] | 645 | group_dict->SetBoolean("has_backup_job", group->HasBackupJob()); |
[email protected] | 59d7a5a | 2010-08-30 16:44:27 | [diff] [blame] | 646 | |
| 647 | all_groups_dict->SetWithoutPathExpansion(it->first, group_dict); |
| 648 | } |
| 649 | dict->Set("groups", all_groups_dict); |
| 650 | return dict; |
| 651 | } |
| 652 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 653 | bool ClientSocketPoolBaseHelper::IdleSocket::ShouldCleanup( |
[email protected] | 9bf28db | 2009-08-29 01:35:16 | [diff] [blame] | 654 | base::TimeTicks now, |
| 655 | base::TimeDelta timeout) const { |
| 656 | bool timed_out = (now - start_time) >= timeout; |
[email protected] | 0f873e8 | 2010-09-02 16:09:01 | [diff] [blame] | 657 | if (timed_out) |
| 658 | return true; |
| 659 | if (socket->WasEverUsed()) |
| 660 | return !socket->IsConnectedAndIdle(); |
| 661 | return !socket->IsConnected(); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 662 | } |
| 663 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 664 | void ClientSocketPoolBaseHelper::CleanupIdleSockets(bool force) { |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 665 | if (idle_socket_count_ == 0) |
| 666 | return; |
| 667 | |
| 668 | // Current time value. Retrieving it once at the function start rather than |
| 669 | // inside the inner loop, since it shouldn't change by any meaningful amount. |
| 670 | base::TimeTicks now = base::TimeTicks::Now(); |
| 671 | |
| 672 | GroupMap::iterator i = group_map_.begin(); |
| 673 | while (i != group_map_.end()) { |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 674 | Group* group = i->second; |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 675 | |
[email protected] | e1b54dc | 2010-10-06 21:27:22 | [diff] [blame] | 676 | std::list<IdleSocket>::iterator j = group->mutable_idle_sockets()->begin(); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 677 | while (j != group->idle_sockets().end()) { |
[email protected] | 9bf28db | 2009-08-29 01:35:16 | [diff] [blame] | 678 | base::TimeDelta timeout = |
[email protected] | 0f873e8 | 2010-09-02 16:09:01 | [diff] [blame] | 679 | j->socket->WasEverUsed() ? |
| 680 | used_idle_socket_timeout_ : unused_idle_socket_timeout_; |
[email protected] | 9bf28db | 2009-08-29 01:35:16 | [diff] [blame] | 681 | if (force || j->ShouldCleanup(now, timeout)) { |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 682 | delete j->socket; |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 683 | j = group->mutable_idle_sockets()->erase(j); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 684 | DecrementIdleCount(); |
| 685 | } else { |
| 686 | ++j; |
| 687 | } |
| 688 | } |
| 689 | |
| 690 | // Delete group if no longer needed. |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 691 | if (group->IsEmpty()) { |
| 692 | RemoveGroup(i++); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 693 | } else { |
| 694 | ++i; |
| 695 | } |
| 696 | } |
| 697 | } |
| 698 | |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 699 | ClientSocketPoolBaseHelper::Group* ClientSocketPoolBaseHelper::GetOrCreateGroup( |
| 700 | const std::string& group_name) { |
| 701 | GroupMap::iterator it = group_map_.find(group_name); |
| 702 | if (it != group_map_.end()) |
| 703 | return it->second; |
| 704 | Group* group = new Group; |
| 705 | group_map_[group_name] = group; |
| 706 | return group; |
| 707 | } |
| 708 | |
| 709 | void ClientSocketPoolBaseHelper::RemoveGroup(const std::string& group_name) { |
| 710 | GroupMap::iterator it = group_map_.find(group_name); |
| 711 | CHECK(it != group_map_.end()); |
| 712 | |
| 713 | RemoveGroup(it); |
| 714 | } |
| 715 | |
| 716 | void ClientSocketPoolBaseHelper::RemoveGroup(GroupMap::iterator it) { |
| 717 | delete it->second; |
| 718 | group_map_.erase(it); |
| 719 | } |
| 720 | |
[email protected] | 06d9404 | 2010-08-25 01:45:22 | [diff] [blame] | 721 | // static |
[email protected] | 2d672869 | 2011-03-12 01:39:55 | [diff] [blame] | 722 | bool ClientSocketPoolBaseHelper::connect_backup_jobs_enabled() { |
| 723 | return g_connect_backup_jobs_enabled; |
| 724 | } |
| 725 | |
| 726 | // static |
[email protected] | 636b825 | 2011-04-08 19:56:54 | [diff] [blame] | 727 | bool ClientSocketPoolBaseHelper::set_connect_backup_jobs_enabled(bool enabled) { |
| 728 | bool old_value = g_connect_backup_jobs_enabled; |
[email protected] | 06d9404 | 2010-08-25 01:45:22 | [diff] [blame] | 729 | g_connect_backup_jobs_enabled = enabled; |
[email protected] | 636b825 | 2011-04-08 19:56:54 | [diff] [blame] | 730 | return old_value; |
[email protected] | 06d9404 | 2010-08-25 01:45:22 | [diff] [blame] | 731 | } |
| 732 | |
| 733 | void ClientSocketPoolBaseHelper::EnableConnectBackupJobs() { |
| 734 | connect_backup_jobs_enabled_ = g_connect_backup_jobs_enabled; |
| 735 | } |
| 736 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 737 | void ClientSocketPoolBaseHelper::IncrementIdleCount() { |
[email protected] | 64770b7d | 2011-11-16 04:30:41 | [diff] [blame] | 738 | if (++idle_socket_count_ == 1 && use_cleanup_timer_) |
| 739 | StartIdleSocketTimer(); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 740 | } |
| 741 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 742 | void ClientSocketPoolBaseHelper::DecrementIdleCount() { |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 743 | if (--idle_socket_count_ == 0) |
| 744 | timer_.Stop(); |
| 745 | } |
| 746 | |
[email protected] | 64770b7d | 2011-11-16 04:30:41 | [diff] [blame] | 747 | // static |
| 748 | bool ClientSocketPoolBaseHelper::cleanup_timer_enabled() { |
| 749 | return g_cleanup_timer_enabled; |
| 750 | } |
| 751 | |
| 752 | // static |
| 753 | bool ClientSocketPoolBaseHelper::set_cleanup_timer_enabled(bool enabled) { |
| 754 | bool old_value = g_cleanup_timer_enabled; |
| 755 | g_cleanup_timer_enabled = enabled; |
| 756 | return old_value; |
| 757 | } |
| 758 | |
| 759 | void ClientSocketPoolBaseHelper::StartIdleSocketTimer() { |
| 760 | timer_.Start(FROM_HERE, TimeDelta::FromSeconds(kCleanupInterval), this, |
| 761 | &ClientSocketPoolBaseHelper::OnCleanupTimerFired); |
| 762 | } |
| 763 | |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 764 | void ClientSocketPoolBaseHelper::ReleaseSocket(const std::string& group_name, |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 765 | scoped_ptr<StreamSocket> socket, |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 766 | int id) { |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 767 | GroupMap::iterator i = group_map_.find(group_name); |
| 768 | CHECK(i != group_map_.end()); |
| 769 | |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 770 | Group* group = i->second; |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 771 | |
[email protected] | b1f031dd | 2010-03-02 23:19:33 | [diff] [blame] | 772 | CHECK_GT(handed_out_socket_count_, 0); |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 773 | handed_out_socket_count_--; |
| 774 | |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 775 | CHECK_GT(group->active_socket_count(), 0); |
| 776 | group->DecrementActiveSocketCount(); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 777 | |
[email protected] | a7e3857 | 2010-06-07 18:22:24 | [diff] [blame] | 778 | const bool can_reuse = socket->IsConnectedAndIdle() && |
| 779 | id == pool_generation_number_; |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 780 | if (can_reuse) { |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 781 | // Add it to the idle list. |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 782 | AddIdleSocket(socket.Pass(), group); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 783 | OnAvailableSocketSlot(group_name, group); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 784 | } else { |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 785 | socket.reset(); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 786 | } |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 787 | |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 788 | CheckForStalledSocketGroups(); |
| 789 | } |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 790 | |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 791 | void ClientSocketPoolBaseHelper::CheckForStalledSocketGroups() { |
| 792 | // If we have idle sockets, see if we can give one to the top-stalled group. |
| 793 | std::string top_group_name; |
| 794 | Group* top_group = NULL; |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 795 | if (!FindTopStalledGroup(&top_group, &top_group_name)) |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 796 | return; |
[email protected] | 4f2abec | 2010-02-03 18:10:16 | [diff] [blame] | 797 | |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 798 | if (ReachedMaxSocketsLimit()) { |
| 799 | if (idle_socket_count() > 0) { |
| 800 | CloseOneIdleSocket(); |
[email protected] | d7027bb | 2010-05-10 18:58:54 | [diff] [blame] | 801 | } else { |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 802 | // We can't activate more sockets since we're already at our global |
| 803 | // limit. |
[email protected] | 4f2abec | 2010-02-03 18:10:16 | [diff] [blame] | 804 | return; |
[email protected] | d7027bb | 2010-05-10 18:58:54 | [diff] [blame] | 805 | } |
[email protected] | 4f2abec | 2010-02-03 18:10:16 | [diff] [blame] | 806 | } |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 807 | |
| 808 | // Note: we don't loop on waking stalled groups. If the stalled group is at |
| 809 | // its limit, may be left with other stalled groups that could be |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 810 | // woken. This isn't optimal, but there is no starvation, so to avoid |
[email protected] | eb5a9938 | 2010-07-11 03:18:26 | [diff] [blame] | 811 | // the looping we leave it at this. |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 812 | OnAvailableSocketSlot(top_group_name, top_group); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 813 | } |
| 814 | |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 815 | // Search for the highest priority pending request, amongst the groups that |
| 816 | // are not at the |max_sockets_per_group_| limit. Note: for requests with |
| 817 | // the same priority, the winner is based on group hash ordering (and not |
| 818 | // insertion order). |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 819 | bool ClientSocketPoolBaseHelper::FindTopStalledGroup( |
| 820 | Group** group, |
| 821 | std::string* group_name) const { |
| 822 | CHECK((group && group_name) || (!group && !group_name)); |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 823 | Group* top_group = NULL; |
| 824 | const std::string* top_group_name = NULL; |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 825 | bool has_stalled_group = false; |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 826 | for (GroupMap::const_iterator i = group_map_.begin(); |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 827 | i != group_map_.end(); ++i) { |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 828 | Group* curr_group = i->second; |
| 829 | const RequestQueue& queue = curr_group->pending_requests(); |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 830 | if (queue.empty()) |
| 831 | continue; |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 832 | if (curr_group->IsStalledOnPoolMaxSockets(max_sockets_per_group_)) { |
| 833 | if (!group) |
| 834 | return true; |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 835 | has_stalled_group = true; |
[email protected] | 6427fe2 | 2010-04-16 22:27:41 | [diff] [blame] | 836 | bool has_higher_priority = !top_group || |
[email protected] | 31ae7ab | 2012-04-24 21:09:05 | [diff] [blame] | 837 | curr_group->TopPendingPriority() > top_group->TopPendingPriority(); |
[email protected] | 6427fe2 | 2010-04-16 22:27:41 | [diff] [blame] | 838 | if (has_higher_priority) { |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 839 | top_group = curr_group; |
[email protected] | 6427fe2 | 2010-04-16 22:27:41 | [diff] [blame] | 840 | top_group_name = &i->first; |
| 841 | } |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 842 | } |
| 843 | } |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 844 | |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 845 | if (top_group) { |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 846 | CHECK(group); |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 847 | *group = top_group; |
| 848 | *group_name = *top_group_name; |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 849 | } else { |
| 850 | CHECK(!has_stalled_group); |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 851 | } |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 852 | return has_stalled_group; |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 853 | } |
| 854 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 855 | void ClientSocketPoolBaseHelper::OnConnectJobComplete( |
| 856 | int result, ConnectJob* job) { |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 857 | DCHECK_NE(ERR_IO_PENDING, result); |
| 858 | const std::string group_name = job->group_name(); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 859 | GroupMap::iterator group_it = group_map_.find(group_name); |
| 860 | CHECK(group_it != group_map_.end()); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 861 | Group* group = group_it->second; |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 862 | |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 863 | scoped_ptr<StreamSocket> socket = job->PassSocket(); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 864 | |
[email protected] | 034df0f3 | 2013-01-07 23:17:48 | [diff] [blame] | 865 | // Copies of these are needed because |job| may be deleted before they are |
| 866 | // accessed. |
[email protected] | 9e743cd | 2010-03-16 07:03:53 | [diff] [blame] | 867 | BoundNetLog job_log = job->net_log(); |
[email protected] | 034df0f3 | 2013-01-07 23:17:48 | [diff] [blame] | 868 | LoadTimingInfo::ConnectTiming connect_timing = job->connect_timing(); |
[email protected] | 5fc08e3 | 2009-07-15 17:09:57 | [diff] [blame] | 869 | |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 870 | // RemoveConnectJob(job, _) must be called by all branches below; |
| 871 | // otherwise, |job| will be leaked. |
| 872 | |
[email protected] | 4d3b05d | 2010-01-27 21:27:29 | [diff] [blame] | 873 | if (result == OK) { |
| 874 | DCHECK(socket.get()); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 875 | RemoveConnectJob(job, group); |
| 876 | if (!group->pending_requests().empty()) { |
[email protected] | 4d3b05d | 2010-01-27 21:27:29 | [diff] [blame] | 877 | scoped_ptr<const Request> r(RemoveRequestFromQueue( |
[email protected] | 3f00be8 | 2010-09-27 19:50:02 | [diff] [blame] | 878 | group->mutable_pending_requests()->begin(), group)); |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 879 | LogBoundConnectJobToRequest(job_log.source(), r.get()); |
[email protected] | 4d3b05d | 2010-01-27 21:27:29 | [diff] [blame] | 880 | HandOutSocket( |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 881 | socket.Pass(), false /* unused socket */, connect_timing, |
[email protected] | 034df0f3 | 2013-01-07 23:17:48 | [diff] [blame] | 882 | r->handle(), base::TimeDelta(), group, r->net_log()); |
[email protected] | 3aa4af04 | 2012-06-14 21:02:31 | [diff] [blame] | 883 | r->net_log().EndEvent(NetLog::TYPE_SOCKET_POOL); |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 884 | InvokeUserCallbackLater(r->handle(), r->callback(), result); |
[email protected] | 5fc08e3 | 2009-07-15 17:09:57 | [diff] [blame] | 885 | } else { |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 886 | AddIdleSocket(socket.Pass(), group); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 887 | OnAvailableSocketSlot(group_name, group); |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 888 | CheckForStalledSocketGroups(); |
[email protected] | 5fc08e3 | 2009-07-15 17:09:57 | [diff] [blame] | 889 | } |
[email protected] | 94c2047 | 2010-01-14 08:14:36 | [diff] [blame] | 890 | } else { |
[email protected] | e772db3f | 2010-07-12 18:11:13 | [diff] [blame] | 891 | // If we got a socket, it must contain error information so pass that |
| 892 | // up so that the caller can retrieve it. |
| 893 | bool handed_out_socket = false; |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 894 | if (!group->pending_requests().empty()) { |
[email protected] | 4d3b05d | 2010-01-27 21:27:29 | [diff] [blame] | 895 | scoped_ptr<const Request> r(RemoveRequestFromQueue( |
[email protected] | 3f00be8 | 2010-09-27 19:50:02 | [diff] [blame] | 896 | group->mutable_pending_requests()->begin(), group)); |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 897 | LogBoundConnectJobToRequest(job_log.source(), r.get()); |
[email protected] | e60e47a | 2010-07-14 03:37:18 | [diff] [blame] | 898 | job->GetAdditionalErrorState(r->handle()); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 899 | RemoveConnectJob(job, group); |
[email protected] | e772db3f | 2010-07-12 18:11:13 | [diff] [blame] | 900 | if (socket.get()) { |
| 901 | handed_out_socket = true; |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 902 | HandOutSocket(socket.Pass(), false /* unused socket */, |
[email protected] | 034df0f3 | 2013-01-07 23:17:48 | [diff] [blame] | 903 | connect_timing, r->handle(), base::TimeDelta(), group, |
| 904 | r->net_log()); |
[email protected] | e772db3f | 2010-07-12 18:11:13 | [diff] [blame] | 905 | } |
[email protected] | 034df0f3 | 2013-01-07 23:17:48 | [diff] [blame] | 906 | r->net_log().EndEventWithNetErrorCode(NetLog::TYPE_SOCKET_POOL, result); |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 907 | InvokeUserCallbackLater(r->handle(), r->callback(), result); |
[email protected] | e60e47a | 2010-07-14 03:37:18 | [diff] [blame] | 908 | } else { |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 909 | RemoveConnectJob(job, group); |
[email protected] | 4d3b05d | 2010-01-27 21:27:29 | [diff] [blame] | 910 | } |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 911 | if (!handed_out_socket) { |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 912 | OnAvailableSocketSlot(group_name, group); |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 913 | CheckForStalledSocketGroups(); |
| 914 | } |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 915 | } |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 916 | } |
| 917 | |
[email protected] | 66761b95 | 2010-06-25 21:30:38 | [diff] [blame] | 918 | void ClientSocketPoolBaseHelper::OnIPAddressChanged() { |
[email protected] | 7af985a | 2012-12-14 22:40:42 | [diff] [blame] | 919 | FlushWithError(ERR_NETWORK_CHANGED); |
[email protected] | 66761b95 | 2010-06-25 21:30:38 | [diff] [blame] | 920 | } |
| 921 | |
[email protected] | 7af985a | 2012-12-14 22:40:42 | [diff] [blame] | 922 | void ClientSocketPoolBaseHelper::FlushWithError(int error) { |
[email protected] | a7e3857 | 2010-06-07 18:22:24 | [diff] [blame] | 923 | pool_generation_number_++; |
[email protected] | 06f9246 | 2010-08-31 19:24:14 | [diff] [blame] | 924 | CancelAllConnectJobs(); |
[email protected] | a554a826 | 2010-05-20 00:13:52 | [diff] [blame] | 925 | CloseIdleSockets(); |
[email protected] | 7af985a | 2012-12-14 22:40:42 | [diff] [blame] | 926 | CancelAllRequestsWithError(error); |
[email protected] | a554a826 | 2010-05-20 00:13:52 | [diff] [blame] | 927 | } |
| 928 | |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 929 | bool ClientSocketPoolBaseHelper::IsStalled() const { |
| 930 | // If we are not using |max_sockets_|, then clearly we are not stalled |
| 931 | if ((handed_out_socket_count_ + connecting_socket_count_) < max_sockets_) |
| 932 | return false; |
| 933 | // So in order to be stalled we need to be using |max_sockets_| AND |
| 934 | // we need to have a request that is actually stalled on the global |
| 935 | // socket limit. To find such a request, we look for a group that |
| 936 | // a has more requests that jobs AND where the number of jobs is less |
| 937 | // than |max_sockets_per_group_|. (If the number of jobs is equal to |
| 938 | // |max_sockets_per_group_|, then the request is stalled on the group, |
| 939 | // which does not count.) |
| 940 | for (GroupMap::const_iterator it = group_map_.begin(); |
| 941 | it != group_map_.end(); ++it) { |
| 942 | if (it->second->IsStalledOnPoolMaxSockets(max_sockets_per_group_)) |
| 943 | return true; |
| 944 | } |
| 945 | return false; |
| 946 | } |
| 947 | |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 948 | void ClientSocketPoolBaseHelper::RemoveConnectJob(ConnectJob* job, |
[email protected] | 4d3b05d | 2010-01-27 21:27:29 | [diff] [blame] | 949 | Group* group) { |
[email protected] | b1f031dd | 2010-03-02 23:19:33 | [diff] [blame] | 950 | CHECK_GT(connecting_socket_count_, 0); |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 951 | connecting_socket_count_--; |
| 952 | |
[email protected] | 25eea38 | 2010-07-10 23:55:26 | [diff] [blame] | 953 | DCHECK(group); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 954 | group->RemoveJob(job); |
[email protected] | 25eea38 | 2010-07-10 23:55:26 | [diff] [blame] | 955 | |
| 956 | // If we've got no more jobs for this group, then we no longer need a |
| 957 | // backup job either. |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 958 | if (group->jobs().empty()) |
[email protected] | e4d9a972 | 2011-05-12 00:16:00 | [diff] [blame] | 959 | group->CleanupBackupJob(); |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 960 | } |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 961 | |
[email protected] | 8ae03f4 | 2010-07-07 19:08:10 | [diff] [blame] | 962 | void ClientSocketPoolBaseHelper::OnAvailableSocketSlot( |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 963 | const std::string& group_name, Group* group) { |
[email protected] | 2abfe90a | 2010-08-25 17:49:51 | [diff] [blame] | 964 | DCHECK(ContainsKey(group_map_, group_name)); |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 965 | if (group->IsEmpty()) |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 966 | RemoveGroup(group_name); |
| 967 | else if (!group->pending_requests().empty()) |
[email protected] | 2abfe90a | 2010-08-25 17:49:51 | [diff] [blame] | 968 | ProcessPendingRequest(group_name, group); |
[email protected] | 8ae03f4 | 2010-07-07 19:08:10 | [diff] [blame] | 969 | } |
[email protected] | 06650c5 | 2010-06-03 00:49:17 | [diff] [blame] | 970 | |
[email protected] | 8ae03f4 | 2010-07-07 19:08:10 | [diff] [blame] | 971 | void ClientSocketPoolBaseHelper::ProcessPendingRequest( |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 972 | const std::string& group_name, Group* group) { |
| 973 | int rv = RequestSocketInternal(group_name, |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 974 | *group->pending_requests().begin()); |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 975 | if (rv != ERR_IO_PENDING) { |
| 976 | scoped_ptr<const Request> request(RemoveRequestFromQueue( |
[email protected] | 3f00be8 | 2010-09-27 19:50:02 | [diff] [blame] | 977 | group->mutable_pending_requests()->begin(), group)); |
[email protected] | 2abfe90a | 2010-08-25 17:49:51 | [diff] [blame] | 978 | if (group->IsEmpty()) |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 979 | RemoveGroup(group_name); |
[email protected] | 8ae03f4 | 2010-07-07 19:08:10 | [diff] [blame] | 980 | |
[email protected] | d7fd178 | 2011-02-08 19:16:43 | [diff] [blame] | 981 | request->net_log().EndEventWithNetErrorCode(NetLog::TYPE_SOCKET_POOL, rv); |
[email protected] | 64770b7d | 2011-11-16 04:30:41 | [diff] [blame] | 982 | InvokeUserCallbackLater(request->handle(), request->callback(), rv); |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 983 | } |
| 984 | } |
| 985 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 986 | void ClientSocketPoolBaseHelper::HandOutSocket( |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 987 | scoped_ptr<StreamSocket> socket, |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 988 | bool reused, |
[email protected] | 034df0f3 | 2013-01-07 23:17:48 | [diff] [blame] | 989 | const LoadTimingInfo::ConnectTiming& connect_timing, |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 990 | ClientSocketHandle* handle, |
[email protected] | f9d285c | 2009-08-17 19:54:29 | [diff] [blame] | 991 | base::TimeDelta idle_time, |
[email protected] | fd4fe0b | 2010-02-08 23:02:15 | [diff] [blame] | 992 | Group* group, |
[email protected] | 9e743cd | 2010-03-16 07:03:53 | [diff] [blame] | 993 | const BoundNetLog& net_log) { |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 994 | DCHECK(socket); |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 995 | handle->SetSocket(socket.Pass()); |
[email protected] | 2ab05b5 | 2009-07-01 23:57:58 | [diff] [blame] | 996 | handle->set_is_reused(reused); |
[email protected] | f9d285c | 2009-08-17 19:54:29 | [diff] [blame] | 997 | handle->set_idle_time(idle_time); |
[email protected] | a7e3857 | 2010-06-07 18:22:24 | [diff] [blame] | 998 | handle->set_pool_id(pool_generation_number_); |
[email protected] | 034df0f3 | 2013-01-07 23:17:48 | [diff] [blame] | 999 | handle->set_connect_timing(connect_timing); |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 1000 | |
[email protected] | d13f51b | 2010-04-27 23:20:45 | [diff] [blame] | 1001 | if (reused) { |
[email protected] | ec11be6 | 2010-04-28 19:28:09 | [diff] [blame] | 1002 | net_log.AddEvent( |
[email protected] | d13f51b | 2010-04-27 23:20:45 | [diff] [blame] | 1003 | NetLog::TYPE_SOCKET_POOL_REUSED_AN_EXISTING_SOCKET, |
[email protected] | 3aa4af04 | 2012-06-14 21:02:31 | [diff] [blame] | 1004 | NetLog::IntegerCallback( |
| 1005 | "idle_ms", static_cast<int>(idle_time.InMilliseconds()))); |
[email protected] | fd4fe0b | 2010-02-08 23:02:15 | [diff] [blame] | 1006 | } |
[email protected] | d13f51b | 2010-04-27 23:20:45 | [diff] [blame] | 1007 | |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 1008 | net_log.AddEvent( |
| 1009 | NetLog::TYPE_SOCKET_POOL_BOUND_TO_SOCKET, |
| 1010 | handle->socket()->NetLog().source().ToEventParametersCallback()); |
[email protected] | fd4fe0b | 2010-02-08 23:02:15 | [diff] [blame] | 1011 | |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 1012 | handed_out_socket_count_++; |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1013 | group->IncrementActiveSocketCount(); |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 1014 | } |
| 1015 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 1016 | void ClientSocketPoolBaseHelper::AddIdleSocket( |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 1017 | scoped_ptr<StreamSocket> socket, |
| 1018 | Group* group) { |
[email protected] | 5fc08e3 | 2009-07-15 17:09:57 | [diff] [blame] | 1019 | DCHECK(socket); |
| 1020 | IdleSocket idle_socket; |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 1021 | idle_socket.socket = socket.release(); |
[email protected] | 5fc08e3 | 2009-07-15 17:09:57 | [diff] [blame] | 1022 | idle_socket.start_time = base::TimeTicks::Now(); |
[email protected] | 5fc08e3 | 2009-07-15 17:09:57 | [diff] [blame] | 1023 | |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1024 | group->mutable_idle_sockets()->push_back(idle_socket); |
[email protected] | 5fc08e3 | 2009-07-15 17:09:57 | [diff] [blame] | 1025 | IncrementIdleCount(); |
| 1026 | } |
| 1027 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 1028 | void ClientSocketPoolBaseHelper::CancelAllConnectJobs() { |
[email protected] | 74d75e0b | 2010-08-23 20:39:54 | [diff] [blame] | 1029 | for (GroupMap::iterator i = group_map_.begin(); i != group_map_.end();) { |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1030 | Group* group = i->second; |
| 1031 | connecting_socket_count_ -= group->jobs().size(); |
| 1032 | group->RemoveAllJobs(); |
[email protected] | 6b624c6 | 2010-03-14 08:37:32 | [diff] [blame] | 1033 | |
[email protected] | 5fc08e3 | 2009-07-15 17:09:57 | [diff] [blame] | 1034 | // Delete group if no longer needed. |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1035 | if (group->IsEmpty()) { |
[email protected] | 06f9246 | 2010-08-31 19:24:14 | [diff] [blame] | 1036 | // RemoveGroup() will call .erase() which will invalidate the iterator, |
| 1037 | // but i will already have been incremented to a valid iterator before |
| 1038 | // RemoveGroup() is called. |
| 1039 | RemoveGroup(i++); |
| 1040 | } else { |
| 1041 | ++i; |
| 1042 | } |
| 1043 | } |
| 1044 | DCHECK_EQ(0, connecting_socket_count_); |
| 1045 | } |
| 1046 | |
[email protected] | 7af985a | 2012-12-14 22:40:42 | [diff] [blame] | 1047 | void ClientSocketPoolBaseHelper::CancelAllRequestsWithError(int error) { |
[email protected] | 06f9246 | 2010-08-31 19:24:14 | [diff] [blame] | 1048 | for (GroupMap::iterator i = group_map_.begin(); i != group_map_.end();) { |
| 1049 | Group* group = i->second; |
| 1050 | |
| 1051 | RequestQueue pending_requests; |
| 1052 | pending_requests.swap(*group->mutable_pending_requests()); |
| 1053 | for (RequestQueue::iterator it2 = pending_requests.begin(); |
| 1054 | it2 != pending_requests.end(); ++it2) { |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 1055 | scoped_ptr<const Request> request(*it2); |
[email protected] | 06f9246 | 2010-08-31 19:24:14 | [diff] [blame] | 1056 | InvokeUserCallbackLater( |
[email protected] | 7af985a | 2012-12-14 22:40:42 | [diff] [blame] | 1057 | request->handle(), request->callback(), error); |
[email protected] | 06f9246 | 2010-08-31 19:24:14 | [diff] [blame] | 1058 | } |
| 1059 | |
| 1060 | // Delete group if no longer needed. |
| 1061 | if (group->IsEmpty()) { |
| 1062 | // RemoveGroup() will call .erase() which will invalidate the iterator, |
| 1063 | // but i will already have been incremented to a valid iterator before |
| 1064 | // RemoveGroup() is called. |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1065 | RemoveGroup(i++); |
[email protected] | 74d75e0b | 2010-08-23 20:39:54 | [diff] [blame] | 1066 | } else { |
| 1067 | ++i; |
[email protected] | 5fc08e3 | 2009-07-15 17:09:57 | [diff] [blame] | 1068 | } |
| 1069 | } |
| 1070 | } |
| 1071 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 1072 | bool ClientSocketPoolBaseHelper::ReachedMaxSocketsLimit() const { |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 1073 | // Each connecting socket will eventually connect and be handed out. |
[email protected] | 43a21b8 | 2010-06-10 21:30:54 | [diff] [blame] | 1074 | int total = handed_out_socket_count_ + connecting_socket_count_ + |
| 1075 | idle_socket_count(); |
[email protected] | 5acdce1 | 2011-03-30 13:00:20 | [diff] [blame] | 1076 | // There can be more sockets than the limit since some requests can ignore |
| 1077 | // the limit |
[email protected] | c901f6d | 2010-04-27 17:48:28 | [diff] [blame] | 1078 | if (total < max_sockets_) |
| 1079 | return false; |
[email protected] | c901f6d | 2010-04-27 17:48:28 | [diff] [blame] | 1080 | return true; |
[email protected] | 211d217 | 2009-07-22 15:48:53 | [diff] [blame] | 1081 | } |
| 1082 | |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 1083 | bool ClientSocketPoolBaseHelper::CloseOneIdleSocket() { |
| 1084 | if (idle_socket_count() == 0) |
| 1085 | return false; |
| 1086 | return CloseOneIdleSocketExceptInGroup(NULL); |
[email protected] | dcbe168a | 2010-12-02 03:14:46 | [diff] [blame] | 1087 | } |
| 1088 | |
| 1089 | bool ClientSocketPoolBaseHelper::CloseOneIdleSocketExceptInGroup( |
| 1090 | const Group* exception_group) { |
[email protected] | 43a21b8 | 2010-06-10 21:30:54 | [diff] [blame] | 1091 | CHECK_GT(idle_socket_count(), 0); |
| 1092 | |
| 1093 | for (GroupMap::iterator i = group_map_.begin(); i != group_map_.end(); ++i) { |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1094 | Group* group = i->second; |
[email protected] | dcbe168a | 2010-12-02 03:14:46 | [diff] [blame] | 1095 | if (exception_group == group) |
| 1096 | continue; |
[email protected] | e1b54dc | 2010-10-06 21:27:22 | [diff] [blame] | 1097 | std::list<IdleSocket>* idle_sockets = group->mutable_idle_sockets(); |
[email protected] | 43a21b8 | 2010-06-10 21:30:54 | [diff] [blame] | 1098 | |
[email protected] | e1b54dc | 2010-10-06 21:27:22 | [diff] [blame] | 1099 | if (!idle_sockets->empty()) { |
| 1100 | delete idle_sockets->front().socket; |
| 1101 | idle_sockets->pop_front(); |
[email protected] | 43a21b8 | 2010-06-10 21:30:54 | [diff] [blame] | 1102 | DecrementIdleCount(); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1103 | if (group->IsEmpty()) |
| 1104 | RemoveGroup(i); |
[email protected] | 43a21b8 | 2010-06-10 21:30:54 | [diff] [blame] | 1105 | |
[email protected] | dcbe168a | 2010-12-02 03:14:46 | [diff] [blame] | 1106 | return true; |
[email protected] | 43a21b8 | 2010-06-10 21:30:54 | [diff] [blame] | 1107 | } |
| 1108 | } |
| 1109 | |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 1110 | return false; |
| 1111 | } |
[email protected] | dcbe168a | 2010-12-02 03:14:46 | [diff] [blame] | 1112 | |
[email protected] | 51fdc7c | 2012-04-10 19:19:48 | [diff] [blame] | 1113 | bool ClientSocketPoolBaseHelper::CloseOneIdleConnectionInLayeredPool() { |
| 1114 | // This pool doesn't have any idle sockets. It's possible that a pool at a |
| 1115 | // higher layer is holding one of this sockets active, but it's actually idle. |
| 1116 | // Query the higher layers. |
| 1117 | for (std::set<LayeredPool*>::const_iterator it = higher_layer_pools_.begin(); |
| 1118 | it != higher_layer_pools_.end(); ++it) { |
| 1119 | if ((*it)->CloseOneIdleConnection()) |
| 1120 | return true; |
| 1121 | } |
[email protected] | dcbe168a | 2010-12-02 03:14:46 | [diff] [blame] | 1122 | return false; |
[email protected] | 43a21b8 | 2010-06-10 21:30:54 | [diff] [blame] | 1123 | } |
| 1124 | |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 1125 | void ClientSocketPoolBaseHelper::InvokeUserCallbackLater( |
[email protected] | 49639fa | 2011-12-20 23:22:41 | [diff] [blame] | 1126 | ClientSocketHandle* handle, const CompletionCallback& callback, int rv) { |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 1127 | CHECK(!ContainsKey(pending_callback_map_, handle)); |
| 1128 | pending_callback_map_[handle] = CallbackResultPair(callback, rv); |
[email protected] | 2da659e | 2013-05-23 20:51:34 | [diff] [blame] | 1129 | base::MessageLoop::current()->PostTask( |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 1130 | FROM_HERE, |
[email protected] | 49639fa | 2011-12-20 23:22:41 | [diff] [blame] | 1131 | base::Bind(&ClientSocketPoolBaseHelper::InvokeUserCallback, |
| 1132 | weak_factory_.GetWeakPtr(), handle)); |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 1133 | } |
| 1134 | |
| 1135 | void ClientSocketPoolBaseHelper::InvokeUserCallback( |
| 1136 | ClientSocketHandle* handle) { |
| 1137 | PendingCallbackMap::iterator it = pending_callback_map_.find(handle); |
| 1138 | |
| 1139 | // Exit if the request has already been cancelled. |
| 1140 | if (it == pending_callback_map_.end()) |
| 1141 | return; |
| 1142 | |
| 1143 | CHECK(!handle->is_initialized()); |
[email protected] | 49639fa | 2011-12-20 23:22:41 | [diff] [blame] | 1144 | CompletionCallback callback = it->second.callback; |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 1145 | int result = it->second.result; |
| 1146 | pending_callback_map_.erase(it); |
[email protected] | 49639fa | 2011-12-20 23:22:41 | [diff] [blame] | 1147 | callback.Run(result); |
[email protected] | 05ea9ff | 2010-07-15 19:08:21 | [diff] [blame] | 1148 | } |
| 1149 | |
[email protected] | 58e562f | 2013-04-22 17:32:20 | [diff] [blame] | 1150 | void ClientSocketPoolBaseHelper::TryToCloseSocketsInLayeredPools() { |
| 1151 | while (IsStalled()) { |
| 1152 | // Closing a socket will result in calling back into |this| to use the freed |
| 1153 | // socket slot, so nothing else is needed. |
| 1154 | if (!CloseOneIdleConnectionInLayeredPool()) |
| 1155 | return; |
| 1156 | } |
| 1157 | } |
| 1158 | |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1159 | ClientSocketPoolBaseHelper::Group::Group() |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 1160 | : unassigned_job_count_(0), |
| 1161 | active_socket_count_(0), |
[email protected] | aa249b5 | 2013-04-30 01:04:32 | [diff] [blame] | 1162 | weak_factory_(this) {} |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1163 | |
[email protected] | e4d9a972 | 2011-05-12 00:16:00 | [diff] [blame] | 1164 | ClientSocketPoolBaseHelper::Group::~Group() { |
| 1165 | CleanupBackupJob(); |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 1166 | DCHECK_EQ(0u, unassigned_job_count_); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1167 | } |
| 1168 | |
| 1169 | void ClientSocketPoolBaseHelper::Group::StartBackupSocketTimer( |
| 1170 | const std::string& group_name, |
| 1171 | ClientSocketPoolBaseHelper* pool) { |
| 1172 | // Only allow one timer pending to create a backup socket. |
[email protected] | 49639fa | 2011-12-20 23:22:41 | [diff] [blame] | 1173 | if (weak_factory_.HasWeakPtrs()) |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1174 | return; |
| 1175 | |
[email protected] | 2da659e | 2013-05-23 20:51:34 | [diff] [blame] | 1176 | base::MessageLoop::current()->PostDelayedTask( |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1177 | FROM_HERE, |
[email protected] | 49639fa | 2011-12-20 23:22:41 | [diff] [blame] | 1178 | base::Bind(&Group::OnBackupSocketTimerFired, weak_factory_.GetWeakPtr(), |
| 1179 | group_name, pool), |
[email protected] | 26b997396 | 2012-01-28 00:57:00 | [diff] [blame] | 1180 | pool->ConnectRetryInterval()); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1181 | } |
| 1182 | |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 1183 | bool ClientSocketPoolBaseHelper::Group::TryToUseUnassignedConnectJob() { |
| 1184 | SanityCheck(); |
| 1185 | |
| 1186 | if (unassigned_job_count_ == 0) |
| 1187 | return false; |
| 1188 | --unassigned_job_count_; |
| 1189 | return true; |
| 1190 | } |
| 1191 | |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 1192 | void ClientSocketPoolBaseHelper::Group::AddJob(scoped_ptr<ConnectJob> job, |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 1193 | bool is_preconnect) { |
| 1194 | SanityCheck(); |
| 1195 | |
| 1196 | if (is_preconnect) |
| 1197 | ++unassigned_job_count_; |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 1198 | jobs_.insert(job.release()); |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 1199 | } |
| 1200 | |
| 1201 | void ClientSocketPoolBaseHelper::Group::RemoveJob(ConnectJob* job) { |
[email protected] | ee6e0b6 | 2013-08-14 21:55:42 | [diff] [blame] | 1202 | scoped_ptr<ConnectJob> owned_job(job); |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 1203 | SanityCheck(); |
| 1204 | |
[email protected] | ee6e0b6 | 2013-08-14 21:55:42 | [diff] [blame] | 1205 | std::set<ConnectJob*>::iterator it = jobs_.find(job); |
| 1206 | if (it != jobs_.end()) { |
| 1207 | jobs_.erase(it); |
| 1208 | } else { |
| 1209 | NOTREACHED(); |
| 1210 | } |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 1211 | size_t job_count = jobs_.size(); |
| 1212 | if (job_count < unassigned_job_count_) |
| 1213 | unassigned_job_count_ = job_count; |
[email protected] | 2c2bef15 | 2010-10-13 00:55:03 | [diff] [blame] | 1214 | } |
| 1215 | |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1216 | void ClientSocketPoolBaseHelper::Group::OnBackupSocketTimerFired( |
| 1217 | std::string group_name, |
| 1218 | ClientSocketPoolBaseHelper* pool) { |
| 1219 | // If there are no more jobs pending, there is no work to do. |
| 1220 | // If we've done our cleanups correctly, this should not happen. |
| 1221 | if (jobs_.empty()) { |
| 1222 | NOTREACHED(); |
| 1223 | return; |
| 1224 | } |
| 1225 | |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 1226 | // If our old job is waiting on DNS, or if we can't create any sockets |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1227 | // right now due to limits, just reset the timer. |
| 1228 | if (pool->ReachedMaxSocketsLimit() || |
| 1229 | !HasAvailableSocketSlot(pool->max_sockets_per_group_) || |
| 1230 | (*jobs_.begin())->GetLoadState() == LOAD_STATE_RESOLVING_HOST) { |
| 1231 | StartBackupSocketTimer(group_name, pool); |
| 1232 | return; |
| 1233 | } |
| 1234 | |
[email protected] | a9fc8fc | 2011-05-10 02:41:07 | [diff] [blame] | 1235 | if (pending_requests_.empty()) |
[email protected] | 4baaf9d | 2010-08-31 15:15:44 | [diff] [blame] | 1236 | return; |
[email protected] | 4baaf9d | 2010-08-31 15:15:44 | [diff] [blame] | 1237 | |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 1238 | scoped_ptr<ConnectJob> backup_job = |
| 1239 | pool->connect_job_factory_->NewConnectJob( |
| 1240 | group_name, **pending_requests_.begin(), pool); |
[email protected] | 3aa4af04 | 2012-06-14 21:02:31 | [diff] [blame] | 1241 | backup_job->net_log().AddEvent(NetLog::TYPE_SOCKET_BACKUP_CREATED); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1242 | SIMPLE_STATS_COUNTER("socket.backup_created"); |
| 1243 | int rv = backup_job->Connect(); |
| 1244 | pool->connecting_socket_count_++; |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 1245 | ConnectJob* raw_backup_job = backup_job.get(); |
| 1246 | AddJob(backup_job.Pass(), false); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1247 | if (rv != ERR_IO_PENDING) |
[email protected] | 18ccfdb | 2013-08-15 00:13:44 | [diff] [blame] | 1248 | pool->OnConnectJobComplete(rv, raw_backup_job); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1249 | } |
| 1250 | |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 1251 | void ClientSocketPoolBaseHelper::Group::SanityCheck() { |
| 1252 | DCHECK_LE(unassigned_job_count_, jobs_.size()); |
| 1253 | } |
| 1254 | |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1255 | void ClientSocketPoolBaseHelper::Group::RemoveAllJobs() { |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 1256 | SanityCheck(); |
| 1257 | |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1258 | // Delete active jobs. |
| 1259 | STLDeleteElements(&jobs_); |
[email protected] | 8159a1c | 2012-06-07 00:00:10 | [diff] [blame] | 1260 | unassigned_job_count_ = 0; |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1261 | |
| 1262 | // Cancel pending backup job. |
[email protected] | 49639fa | 2011-12-20 23:22:41 | [diff] [blame] | 1263 | weak_factory_.InvalidateWeakPtrs(); |
[email protected] | aed99ef0 | 2010-08-26 14:04:32 | [diff] [blame] | 1264 | } |
| 1265 | |
[email protected] | d80a432 | 2009-08-14 07:07:49 | [diff] [blame] | 1266 | } // namespace internal |
| 1267 | |
[email protected] | ff579d4 | 2009-06-24 15:47:02 | [diff] [blame] | 1268 | } // namespace net |