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Add possibilty to execute function in thread

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Now possible to send a function and arguments to a specific worker
thread for execution.

In particular, this will be used for transferring the injection of
fake hangup events into DCBs, related to a particular server, from
the monitor thread to the worker threads, thus removing the need
for locks.
This commit is contained in:
Johan Wikman
2017-02-16 15:53:00 +02:00
parent 5138032fe5
commit 7844680c7d
3 changed files with 32 additions and 14 deletions
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12
include/maxscale/worker.h
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@ -47,7 +47,15 @@ enum mxs_worker_msg_id
* arg1: 0
* arg2: NULL
*/
MXS_WORKER_MSG_SHUTDOWN
MXS_WORKER_MSG_SHUTDOWN,
/**
* Function call message.
*
* arg1: Pointer to function with the prototype: void (*)(int thread_id, void* arg2);
* arg2: Second argument for the function passed in arg1.
*/
MXS_WORKER_MSG_CALL
};
/**
@ -88,6 +96,6 @@ static inline int mxs_worker_id(MXS_WORKER* worker)
*
* @attention This function is signal safe.
*/
bool mxs_worker_post_message(MXS_WORKER* worker, int msg_id, int64_t arg1, void* arg2);
bool mxs_worker_post_message(MXS_WORKER* worker, uint32_t msg_id, intptr_t arg1, intptr_t arg2);
MXS_END_DECLS