65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/*
|
|
* Copyright (c) 2018 MariaDB Corporation Ab
|
|
*
|
|
* Use of this software is governed by the Business Source License included
|
|
* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
|
|
*
|
|
* Change Date: 2023-12-18
|
|
*
|
|
* On the date above, in accordance with the Business Source License, use
|
|
* of this software will be governed by version 2 or later of the General
|
|
* Public License.
|
|
*/
|
|
#pragma once
|
|
|
|
#include <maxscale/cdefs.h>
|
|
#include <maxbase/poll.h>
|
|
|
|
MXS_BEGIN_DECLS
|
|
|
|
typedef enum mxb_worker_msg_id_t
|
|
{
|
|
/**
|
|
* Shutdown message.
|
|
*
|
|
* arg1: 0
|
|
* arg2: NULL
|
|
*/
|
|
MXB_WORKER_MSG_SHUTDOWN,
|
|
|
|
/**
|
|
* Function call message.
|
|
*
|
|
* arg1: Pointer to function with the prototype: void (*)(MXB_WORKER*, void* arg2);
|
|
* arg2: Second argument for the function passed in arg1.
|
|
*/
|
|
MXB_WORKER_MSG_CALL
|
|
} mxb_worker_msg_id_t;
|
|
|
|
/**
|
|
* Return the current worker.
|
|
*
|
|
* @return A worker, or NULL if there is no current worker.
|
|
*/
|
|
MXB_WORKER* mxb_worker_get_current();
|
|
|
|
/**
|
|
* Post a message to a worker.
|
|
*
|
|
* @param worker The worker to whom the message should be sent.
|
|
* @param msg_id The message id.
|
|
* @param arg1 Message specific first argument.
|
|
* @param arg2 Message specific second argument.
|
|
*
|
|
* @return True if the message could be sent, false otherwise. If the message
|
|
* posting fails, errno is set appropriately.
|
|
*
|
|
* @attention The return value tells *only* whether the message could be sent,
|
|
* *not* that it has reached the worker.
|
|
*
|
|
* @attention This function is signal safe.
|
|
*/
|
|
bool mxb_worker_post_message(MXB_WORKER* worker, uint32_t msg_id, intptr_t arg1, intptr_t arg2);
|
|
|
|
MXB_END_DECLS
|