libcamera/include/libcamera/base/thread.h
Han-Lin Chen 4d9db06d66 libcamera: add method to set thread affinity
Add method to set thread affinity to Thread class.

Signed-off-by: Han-Lin Chen <hanlinchen@chromium.org>
Co-developed-by: Harvey Yang <chenghaoyang@chromium.org>
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-11-28 17:50:55 +00:00

77 lines
1.4 KiB
C++

/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* Thread support
*/
#pragma once
#include <memory>
#include <sys/types.h>
#include <thread>
#include <libcamera/base/private.h>
#include <libcamera/base/message.h>
#include <libcamera/base/signal.h>
#include <libcamera/base/span.h>
#include <libcamera/base/utils.h>
namespace libcamera {
class EventDispatcher;
class Message;
class Object;
class ThreadData;
class ThreadMain;
class Thread
{
public:
Thread();
virtual ~Thread();
void start();
void exit(int code = 0);
bool wait(utils::duration duration = utils::duration::max());
int setThreadAffinity(const Span<const unsigned int> &cpus);
bool isRunning();
Signal<> finished;
static Thread *current();
static pid_t currentId();
EventDispatcher *eventDispatcher();
void dispatchMessages(Message::Type type = Message::Type::None);
protected:
int exec();
virtual void run();
private:
void startThread();
void finishThread();
void setThreadAffinityInternal();
void postMessage(std::unique_ptr<Message> msg, Object *receiver);
void removeMessages(Object *receiver);
friend class Object;
friend class ThreadData;
friend class ThreadMain;
void moveObject(Object *object);
void moveObject(Object *object, ThreadData *currentData,
ThreadData *targetData);
std::thread thread_;
ThreadData *data_;
};
} /* namespace libcamera */