68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
#pragma once
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/*
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* Copyright (c) 2016 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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*
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* Change Date: 2022-01-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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#include <maxscale/cdefs.h>
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MXS_BEGIN_DECLS
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typedef struct mxs_worker
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{
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} MXS_WORKER;
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enum mxs_worker_msg_id
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{
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/**
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* Shutdown message.
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*
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* arg1: 0
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* arg2: NULL
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*/
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MXS_WORKER_MSG_SHUTDOWN,
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/**
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* Function call message.
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*
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* arg1: Pointer to function with the prototype: void (*)(MXS_WORKER*, void* arg2);
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* arg2: Second argument for the function passed in arg1.
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*/
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MXS_WORKER_MSG_CALL
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};
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/**
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* Return the current worker.
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*
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* @return A worker, or NULL if there is no current worker.
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*/
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MXS_WORKER* mxs_worker_get_current();
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/**
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* Post a message to a worker.
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*
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* @param worker The worker to whom the message should be sent.
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* @param msg_id The message id.
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* @param arg1 Message specific first argument.
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* @param arg2 Message specific second argument.
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*
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* @return True if the message could be sent, false otherwise. If the message
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* posting fails, errno is set appropriately.
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*
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* @attention The return value tells *only* whether the message could be sent,
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* *not* that it has reached the worker.
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*
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* @attention This function is signal safe.
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*/
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bool mxs_worker_post_message(MXS_WORKER* worker, uint32_t msg_id, intptr_t arg1, intptr_t arg2);
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MXS_END_DECLS
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