15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/run_loop.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/bind.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace base { 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)RunLoop::RunLoop() 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : loop_(MessageLoop::current()), 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) previous_run_loop_(NULL), 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) run_depth_(0), 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) run_called_(false), 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) quit_called_(false), 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) running_(false), 184e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) quit_when_idle_received_(false), 194e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) weak_factory_(this) { 2058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#if !defined(OS_MACOSX) && !defined(OS_ANDROID) && \ 2158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) !defined(USE_GTK_MESSAGE_PUMP) 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dispatcher_ = NULL; 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#if !defined(OS_MACOSX) && !defined(OS_ANDROID) && \ 2758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) !defined(USE_GTK_MESSAGE_PUMP) 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)RunLoop::RunLoop(MessageLoop::Dispatcher* dispatcher) 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : loop_(MessageLoop::current()), 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) previous_run_loop_(NULL), 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) dispatcher_(dispatcher), 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) run_depth_(0), 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) run_called_(false), 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) quit_called_(false), 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) running_(false), 364e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) quit_when_idle_received_(false), 374e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) weak_factory_(this) { 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)RunLoop::~RunLoop() { 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void RunLoop::Run() { 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!BeforeRun()) 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) loop_->RunHandler(); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) AfterRun(); 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void RunLoop::RunUntilIdle() { 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) quit_when_idle_received_ = true; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Run(); 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void RunLoop::Quit() { 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) quit_called_ = true; 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (running_ && loop_->run_loop_ == this) { 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // This is the inner-most RunLoop, so quit now. 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) loop_->QuitNow(); 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)base::Closure RunLoop::QuitClosure() { 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return base::Bind(&RunLoop::Quit, weak_factory_.GetWeakPtr()); 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)bool RunLoop::BeforeRun() { 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!run_called_); 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) run_called_ = true; 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Allow Quit to be called before Run. 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (quit_called_) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Push RunLoop stack: 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) previous_run_loop_ = loop_->run_loop_; 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) run_depth_ = previous_run_loop_? previous_run_loop_->run_depth_ + 1 : 1; 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) loop_->run_loop_ = this; 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) running_ = true; 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void RunLoop::AfterRun() { 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) running_ = false; 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Pop RunLoop stack: 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) loop_->run_loop_ = previous_run_loop_; 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Execute deferred QuitNow, if any: 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (previous_run_loop_ && previous_run_loop_->quit_called_) 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) loop_->QuitNow(); 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace base 97