559128b1f1
For debugging purposes, threads can be assigned a name, which eases distinguishing between them in e.g. htop or gdb. This uses a Linux-specific API for now which is limited to 15 characters (+ null terminator), so truncation is done and names for existing thread instantiations were chosen to be consise. [Kieran: Apply checkstyle suggestions, rebase on proxy rework] Signed-off-by: Schulz, Andreas <andreas.schulz2@karlstorz.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
84 lines
1.6 KiB
C++
84 lines
1.6 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 <string>
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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(std::string name = {});
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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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void removeMessages(Object *receiver);
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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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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::string name_;
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std::thread thread_;
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std::unique_ptr<ThreadData> data_;
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};
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} /* namespace libcamera */
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