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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * message.cpp - Message queue support
 */

#include <libcamera/base/message.h>

#include <libcamera/base/log.h>
#include <libcamera/base/signal.h>

/**
 * \file base/message.h
 * \brief Message queue support
 *
 * The messaging API enables inter-thread communication through message
 * posting. Messages can be sent from any thread to any recipient deriving from
 * the Object class.
 *
 * To post a message, the sender allocates it dynamically as instance of a class
 * derived from Message. It then posts the message to an Object recipient
 * through Object::postMessage(). Message ownership is passed to the object,
 * thus the message shall not store any temporary data.
 *
 * The message is delivered in the context of the object's thread, through the