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28 #include "talk/base/worker.h"
30 #include "talk/base/common.h"
31 #include "talk/base/logging.h"
32 #include "talk/base/thread.h"
40 Worker::Worker() : worker_thread_(NULL) {}
43 // We need to already be stopped before being destroyed. We cannot call
44 // StopWork() from here because the subclass's data has already been
45 // destructed, so OnStop() cannot be called.
46 ASSERT(!worker_thread_);
49 bool Worker::StartWork() {
50 talk_base::Thread *me = talk_base::Thread::Current();
52 if (worker_thread_ == me) {
53 // Already working on this thread, so nothing to do.
56 LOG(LS_ERROR) << "Automatically switching threads is not supported";
66 bool Worker::StopWork() {
67 if (!worker_thread_) {
68 // Already not working, so nothing to do.
70 } else if (worker_thread_ != talk_base::Thread::Current()) {
71 LOG(LS_ERROR) << "Stopping from a different thread is not supported";
76 worker_thread_->Clear(this, MSG_HAVEWORK);
77 worker_thread_ = NULL;
81 void Worker::HaveWork() {
82 ASSERT(worker_thread_ != NULL);
83 worker_thread_->Post(this, MSG_HAVEWORK);
86 void Worker::OnMessage(talk_base::Message *msg) {
87 ASSERT(msg->message_id == MSG_HAVEWORK);
88 ASSERT(worker_thread_ == talk_base::Thread::Current());
92 } // namespace talk_base