0701f756b9
Remove the verbose #ifndef/#define/#endif pattern for maintaining header idempotency, and replace it with a simple #pragma once. This simplifies the headers, and prevents redundant changes when header files get moved. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
70 lines
1.2 KiB
C++
70 lines
1.2 KiB
C++
/* SPDX-License-Identifier: LGPL-2.1-or-later */
|
|
/*
|
|
* Copyright (C) 2019, Google Inc.
|
|
*
|
|
* message.h - Message queue support
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <atomic>
|
|
|
|
#include <libcamera/base/bound_method.h>
|
|
|
|
namespace libcamera {
|
|
|
|
class BoundMethodBase;
|
|
class Object;
|
|
class Semaphore;
|
|
class Thread;
|
|
|
|
class Message
|
|
{
|
|
public:
|
|
enum Type {
|
|
None = 0,
|
|
InvokeMessage = 1,
|
|
ThreadMoveMessage = 2,
|
|
DeferredDelete = 3,
|
|
UserMessage = 1000,
|
|
};
|
|
|
|
Message(Type type);
|
|
virtual ~Message();
|
|
|
|
Type type() const { return type_; }
|
|
Object *receiver() const { return receiver_; }
|
|
|
|
static Type registerMessageType();
|
|
|
|
private:
|
|
friend class Thread;
|
|
|
|
Type type_;
|
|
Object *receiver_;
|
|
|
|
static std::atomic_uint nextUserType_;
|
|
};
|
|
|
|
class InvokeMessage : public Message
|
|
{
|
|
public:
|
|
InvokeMessage(BoundMethodBase *method,
|
|
std::shared_ptr<BoundMethodPackBase> pack,
|
|
Semaphore *semaphore = nullptr,
|
|
bool deleteMethod = false);
|
|
~InvokeMessage();
|
|
|
|
Semaphore *semaphore() const { return semaphore_; }
|
|
|
|
void invoke();
|
|
|
|
private:
|
|
BoundMethodBase *method_;
|
|
std::shared_ptr<BoundMethodPackBase> pack_;
|
|
Semaphore *semaphore_;
|
|
bool deleteMethod_;
|
|
};
|
|
|
|
} /* namespace libcamera */
|