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/***********************************************************************/
/* */
/* OCaml */
/* */
/* Contributed by Sylvain Le Gall for Lexifi */
/* */
/* Copyright 2008 Institut National de Recherche en Informatique et */
/* en Automatique. All rights reserved. This file is distributed */
/* under the terms of the GNU Library General Public License, with */
/* the special exception on linking described in file ../../LICENSE. */
/* */
/***********************************************************************/
/* $Id$ */
#ifndef _WINWORKER_H
#define _WINWORKER_H
#define _WIN32_WINNT 0x0400
#include "unixsupport.h"
#include <windows.h>
/* Pool of worker threads.
*
* These functions help to manage a pool of worker thread and submit task to
* the pool. It helps to reduce the number of thread creation.
*
* Each worker are started in alertable wait state and jobs are submitted as
* APC (asynchronous procedure call).
*/
/* Data associated with submitted job */
typedef struct _WORKER WORKER;
typedef WORKER *LPWORKER;
/* Function type of submitted job:
* void worker_call (HANDLE hStop, void *data)
*
* This function will be called using the data following:
* - hStop must be watched for change, since it represents an external command
* to stop the call. This event is shared through the WORKER structure, which
* can be access throuhg worker_job_event_done.
* - data is user provided data for the function.
*/
typedef void (*WORKERFUNC) (HANDLE, void *);
/* Initialize global data structure for worker
*/
void worker_init (void);
/* Free global data structure for worker
*/
void worker_cleanup (void);
/* Submit a job to worker. Use returned data to synchronize with the procedure
* submitted.
*/
LPWORKER worker_job_submit (WORKERFUNC f, void *data);
/* Get event to know when a job is done.
*/
HANDLE worker_job_event_done (LPWORKER);
/* Ask a job to stop processing.
*/
void worker_job_stop (LPWORKER);
/* End a job submitted to worker.
*/
void worker_job_finish (LPWORKER);
#endif /* _WINWORKER_H */
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