| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // Author: morlovich@google.com (Maksim Orlovich) |
| |
| #include "pagespeed/system/system_thread_system.h" |
| |
| #include "base/logging.h" |
| |
| #include "apr_thread_proc.h" // NOLINT |
| |
| namespace net_instaweb { |
| |
| SystemThreadSystem::SystemThreadSystem() : may_start_threads_(false) {} |
| SystemThreadSystem::~SystemThreadSystem() {} |
| |
| void SystemThreadSystem::PermitThreadStarting() { |
| DCHECK(!may_start_threads_); |
| may_start_threads_ = true; |
| } |
| |
| void SystemThreadSystem::BeforeThreadRunHook() { |
| // We disable all signals here, since the server we're hooking into is |
| // probably using signals for something else and we don't want to get in the |
| // way. For example, we don't want Apache's use of SIGTERM to cause the |
| // 'delete everything' handler to be run everywhere. (This is only needed for |
| // prefork, threaded MPMs do it already.) |
| apr_setup_signal_thread(); |
| |
| // If this fails you can get a backtrace from gdb by setting a breakpoint on |
| // "pthread_create". |
| DCHECK(may_start_threads_); |
| } |
| |
| } // namespace net_instaweb |