diff options
Diffstat (limited to 'kopete/protocols/jabber/jingle/libjingle/talk/base/taskrunner.cpp')
-rw-r--r-- | kopete/protocols/jabber/jingle/libjingle/talk/base/taskrunner.cpp | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/base/taskrunner.cpp b/kopete/protocols/jabber/jingle/libjingle/talk/base/taskrunner.cpp new file mode 100644 index 00000000..b5ecc55e --- /dev/null +++ b/kopete/protocols/jabber/jingle/libjingle/talk/base/taskrunner.cpp @@ -0,0 +1,92 @@ +/* + * libjingle + * Copyright 2004--2005, Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO + * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "taskrunner.h" +#include "task.h" +#include <algorithm> + + +namespace buzz { + +TaskRunner::~TaskRunner() { + // this kills and deletes children silently! + AbortAllChildren(); + RunTasks(); +} + +void +TaskRunner::StartTask(Task * task) { + tasks_.push_back(task); + WakeTasks(); +} + +void +TaskRunner::RunTasks() { + // Running continues until all tasks are Blocked (ok for a small # of tasks) + if (tasks_running_) { + return; // don't reenter + } + + tasks_running_ = true; + + int did_run = true; + while (did_run) { + did_run = false; + // use indexing instead of iterators because tasks_ may grow + for (size_t i = 0; i < tasks_.size(); ++i) { + while (!tasks_[i]->Blocked()) { + tasks_[i]->Step(); + did_run = true; + } + } + } + // Tasks are deleted when running has paused + for (size_t i = 0; i < tasks_.size(); ++i) { + if (tasks_[i]->IsDone()) { + Task* task = tasks_[i]; + delete task; + tasks_[i] = NULL; + } + } + // Finally, remove nulls + tasks_.erase(std::remove(tasks_.begin(), tasks_.end(), (Task *)NULL), tasks_.end()); + + tasks_running_ = false; +} + +void +TaskRunner::PollTasks() { + // every task gets hit once with a poll - they wake if needed + for (size_t i = 0; i < tasks_.size(); ++i) { + if (!tasks_[i]->IsDone()) { + tasks_[i]->Poll(); + } + } +} + + +} |