/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2019, Google Inc. * * message.cpp - Messages test */ #include #include #include #include "libcamera/internal/message.h" #include "libcamera/internal/thread.h" #include "test.h" using namespace std; using namespace libcamera; class MessageReceiver : public Object { public: enum Status { NoMessage, InvalidThread, MessageReceived, }; MessageReceiver() : status_(NoMessage) { } Status status() const { return status_; } void reset() { status_ = NoMessage; } protected: void message(Message *msg) { if (msg->type() != Message::None) { Object::message(msg); return; } if (thread() != Thread::current()) status_ = InvalidThread; else status_ = MessageReceived; } private: Status status_; }; class SlowMessageReceiver : public Object { protected: void message(Message *msg) { if (msg->type() != Message::None) { Object::message(msg); return; } /* * Don't access any member of the object here (including the * vtable) as the object will be deleted by the main thread * while we're sleeping. */ this_thread::sleep_for(chrono::milliseconds(100)); } }; class MessageTest : public Test { protected: int run() { Message::Type msgType[2] = { Message::registerMessageType(), Message::registerMessageType(), }; if (msgType[0] != Message::UserMessage || msgType[1] != Message::UserMessage + 1) { cout << "Failed to register message types" << endl; return TestFail; } MessageReceiver receiver; receiver.moveToThread(&thread_); thread_.start(); receiver.postMessage(std::make_unique(Message::None)); this_thread::sleep_for(chrono::milliseconds(100)); switch (receiver.status()) { case MessageReceiver::NoMessage: cout << "No message received" << endl; return TestFail; case MessageReceiver::InvalidThread: cout << "Message received in incorrect thread" << endl; return TestFail; default: break; } /* * Test for races between message delivery and object deletion. * Failures result in assertion errors, there is no need for * explicit checks. */ SlowMessageReceiver *slowReceiver = new SlowMessageReceiver(); slowReceiver->moveToThread(&thread_); slowReceiver->postMessage(std::make_unique(Message::None)); this_thread::sleep_for(chrono::milliseconds(10)); delete slowReceiver; return TestPass; } void cleanup() { thread_.exit(0); thread_.wait(); } private: Thread thread_; }; TEST_REGISTER(MessageTest) era.git/tree/src/gstreamer?id=40148cfcafbac274232acd07f41a4ee16bfd1f45'>gstreamer/gstlibcamerapool.cpp
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