/usr/include/shogun/base/Parallel.h is in libshogun-dev 1.1.0-4ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 | /*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Written (W) 1999-2009 Soeren Sonnenburg
* Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
*/
#ifndef PARALLEL_H__
#define PARALLEL_H__
#include <shogun/lib/config.h>
#include <shogun/lib/common.h>
#include <shogun/io/SGIO.h>
#ifdef HAVE_PTHREAD
#ifdef USE_SPINLOCKS
#define PTHREAD_LOCK_T pthread_spinlock_t
#define PTHREAD_LOCK_INIT(lock) pthread_spin_init(lock, 0)
#define PTHREAD_LOCK_DESTROY(lock) pthread_spin_destroy(lock)
#define PTHREAD_LOCK(lock) pthread_spin_lock(lock)
#define PTHREAD_UNLOCK(lock) pthread_spin_unlock(lock)
#else
#define PTHREAD_LOCK_T pthread_mutex_t
#define PTHREAD_LOCK_INIT(lock) pthread_mutex_init(lock, NULL)
#define PTHREAD_LOCK_DESTROY(lock) pthread_mutex_destroy(lock)
#define PTHREAD_LOCK(lock) pthread_mutex_lock(lock)
#define PTHREAD_UNLOCK(lock) pthread_mutex_unlock(lock)
#endif
#endif
namespace shogun
{
/** @brief Class Parallel provides helper functions for multithreading.
*
* For example it can be used to determine the number of CPU cores in your
* computer and is the place where you define the number of CPUs that shall be
* used in computations.
*/
class Parallel
{
public:
/** constructor */
Parallel();
/** copy constructor */
Parallel(const Parallel& orig);
/** destructor */
virtual ~Parallel();
/** get num of cpus
* @return number of CPUs
*/
int32_t get_num_cpus() const;
/** set number of threads
* @param n number of threads
*/
void set_num_threads(int32_t n);
/** get number of threads
* @return number of threads
*/
int32_t get_num_threads() const;
/** ref
* @return current ref counter
*/
int32_t ref();
/** get ref count
* @return current ref counter
*/
int32_t ref_count() const;
/** unref
* @return current ref counter
*/
int32_t unref();
private:
/** ref counter */
int32_t refcount;
/** number of threads */
int32_t num_threads;
};
}
#endif
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