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/*
* thread-pool.h
*
* A thread pool implementation
*
* (c) 2006-2010 Thomas White <taw@physics.org>
*
* Part of CrystFEL - crystallography with a FEL
*
*/
#ifndef THREAD_POOL_H
#define THREAD_POOL_H
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <pthread.h>
extern pthread_mutex_t stderr_lock;
extern signed int get_status_label(void);
/**
* TPGetTaskFunc:
* @qargs: The queue_args pointer which was given to run_threads().
* Returns: A pointer which will be passed to the worker function.
*
* This function is called, non-reentrantly, to get a new work item to give to
* your work function. The stuff you need to generate the new work item should
* have been stored in @qargs which was passed to run_threads().
*
**/
typedef void *(*TPGetTaskFunc)(void *qargs);
/**
* TPWorkFunc:
* @work: The queue_args pointer which was given to run_threads().
* @cookie: A small integral number which is guaranteed to be unique among all
* currently running threads.
*
* This function is called, reentrantly, for each work item.
*
**/
typedef void (*TPWorkFunc)(void *work, int cookie);
/**
* TPFinalFunc:
* @qargs: The queue_args pointer which was given to run_threads().
* @work: The pointer which was returned by your get_task function.
*
* This function is called, non-reentrantly, after each work item has been
* completed. A typical use might be to update some counters inside @qargs
* according to fields withing @work which were filled by your 'work' function.
*
**/
typedef void (*TPFinalFunc)(void *qargs, void *work);
extern int run_threads(int n_threads, TPWorkFunc work,
TPGetTaskFunc get_task, TPFinalFunc final,
void *queue_args, int max,
int cpu_num, int cpu_groupsize, int cpu_offset);
#endif /* THREAD_POOL_H */
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