/usr/include/xbt/parmap.h is in libsimgrid-dev 3.14.159-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | /* A thread pool. */
/* Copyright (c) 2007, 2009-2014. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#ifndef _XBT_PARMAP_H
#define _XBT_PARMAP_H
#include "xbt/misc.h" /* SG_BEGIN_DECL */
#include "xbt/function_types.h"
#include "xbt/dynar.h"
SG_BEGIN_DECL()
/** \addtogroup XBT_parmap
* \ingroup XBT_misc
* \brief Parallel map.
*
* A function is applied to all elements of a dynar in parallel with n worker threads.
* The worker threads are persistent until the destruction of the parmap.
*
* If there are more than n elements in the dynar, the worker threads are allowed to fetch themselves remaining work
* with xbt_parmap_next() and execute it.
*
* \{
*/
/** \brief Parallel map data type (opaque type) */
typedef struct s_xbt_parmap *xbt_parmap_t;
/** \brief Synchronization mode of the worker threads of a parmap. */
typedef enum {
XBT_PARMAP_POSIX, /**< use POSIX synchronization primitives */
XBT_PARMAP_FUTEX, /**< use Linux futex system call */
XBT_PARMAP_BUSY_WAIT, /**< busy waits (no system calls, maximum CPU usage) */
XBT_PARMAP_DEFAULT /**< futex if available, posix otherwise */
} e_xbt_parmap_mode_t;
XBT_PUBLIC(xbt_parmap_t) xbt_parmap_new(unsigned int num_workers, e_xbt_parmap_mode_t mode);
XBT_PUBLIC(void) xbt_parmap_destroy(xbt_parmap_t parmap);
XBT_PUBLIC(void) xbt_parmap_apply(xbt_parmap_t parmap, void_f_pvoid_t fun, xbt_dynar_t data);
XBT_PUBLIC(void*) xbt_parmap_next(xbt_parmap_t parmap);
/** \} */
SG_END_DECL()
#endif
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