72a890e11a
The Thread::dispatchMessage() function supports filtering messages based on their type. It can be useful to also dispatch only messages posted for a specific receiver. Add an optional receiver argument to the dispatchMessage() function to do so. When set to null (the default value), the behaviour of the function is not changed. This facility is actually used in followup patches. Signed-off-by: Milan Zamazal <mzamazal@redhat.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
82 lines
1.5 KiB
C++
82 lines
1.5 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* Thread support
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*/
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#pragma once
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#include <memory>
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#include <sys/types.h>
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#include <thread>
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#include <libcamera/base/private.h>
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#include <libcamera/base/class.h>
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#include <libcamera/base/message.h>
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#include <libcamera/base/signal.h>
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#include <libcamera/base/span.h>
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#include <libcamera/base/utils.h>
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namespace libcamera {
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class EventDispatcher;
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class Message;
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class Object;
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class ThreadData;
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class ThreadMain;
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class Thread
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{
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public:
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Thread();
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virtual ~Thread();
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void start();
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void exit(int code = 0);
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bool wait(utils::duration duration = utils::duration::max());
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int setThreadAffinity(const Span<const unsigned int> &cpus);
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bool isRunning();
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Signal<> finished;
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static Thread *current();
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static pid_t currentId();
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EventDispatcher *eventDispatcher();
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void dispatchMessages(Message::Type type = Message::Type::None,
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Object *receiver = nullptr);
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protected:
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int exec();
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virtual void run();
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private:
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LIBCAMERA_DISABLE_COPY_AND_MOVE(Thread)
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void startThread();
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void finishThread();
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void setThreadAffinityInternal();
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void postMessage(std::unique_ptr<Message> msg, Object *receiver);
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void removeMessages(Object *receiver);
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friend class Object;
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friend class ThreadData;
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friend class ThreadMain;
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void moveObject(Object *object);
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void moveObject(Object *object, ThreadData *currentData,
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ThreadData *targetData);
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std::thread thread_;
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ThreadData *data_;
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};
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} /* namespace libcamera */
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