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testMutex.cpp
1 /****************************************************************************
2  *
3  * This file is part of the ViSP software.
4  * Copyright (C) 2005 - 2017 by Inria. All rights reserved.
5  *
6  * This software is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * ("GPL") version 2 as published by the Free Software Foundation.
9  * See the file LICENSE.txt at the root directory of this source
10  * distribution for additional information about the GNU GPL.
11  *
12  * For using ViSP with software that can not be combined with the GNU
13  * GPL, please contact Inria about acquiring a ViSP Professional
14  * Edition License.
15  *
16  * See http://visp.inria.fr for more information.
17  *
18  * This software was developed at:
19  * Inria Rennes - Bretagne Atlantique
20  * Campus Universitaire de Beaulieu
21  * 35042 Rennes Cedex
22  * France
23  *
24  * If you have questions regarding the use of this file, please contact
25  * Inria at visp@inria.fr
26  *
27  * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
28  * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
29  *
30  * Description:
31  * Test threading capabilities.
32  *
33  * Authors:
34  * Fabien Spindler
35  *
36  *****************************************************************************/
37 
46 #include <iostream>
47 
48 #include <visp3/core/vpMutex.h>
49 #include <visp3/core/vpThread.h>
50 
51 #if defined(VISP_HAVE_PTHREAD) || (defined(_WIN32) && !defined(WINRT_8_0))
52 
53 int thread_counter=0;
54 vpMutex mutex;
55 
56 vpThread::Return doSomeThing(vpThread::Args args)
57 {
58  mutex.lock();
59  unsigned int thread_id = *((unsigned int *) args);
60 
61  std::cout << "Started job " << thread_counter << " with id " << thread_id << std::endl;
62 
63  for(unsigned long i=0; i<(0xFFFF);i++) {};
64 
65  std::cout << "Ended job " << thread_counter << std::endl;
66 
67  thread_counter ++;
68  mutex.unlock();
69 
70  return 0;
71 }
72 
73 int main(void)
74 {
75  unsigned int nthread=10;
76  vpThread *thread = new vpThread [nthread];
77  unsigned int *thread_id = new unsigned int [nthread];
78 
79  for(unsigned int i=0; i<nthread; i++)
80  {
81  thread_id[i] = i;
82  thread[i].create((vpThread::Fn)&doSomeThing, (vpThread::Args)&thread_id[i]);
83  }
84 
85  delete [] thread;
86  delete [] thread_id;
87 
88  return 0;
89 }
90 
91 #else
92 int main()
93 {
94 # if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__))) // UNIX
95  std::cout << "You should enable pthread usage and rebuild ViSP..." << std::endl;
96 # else
97  std::cout << "Multi-threading seems not supported on this platform" << std::endl;
98 # endif
99 }
100 #endif
void lock()
Definition: vpMutex.h:90
void * Return
Definition: vpThread.h:36
void unlock()
Definition: vpMutex.h:106
void *(* Fn)(Args)
Definition: vpThread.h:37
void create(vpThread::Fn fn, vpThread::Args args=NULL)
Definition: vpThread.h:70
void * Args
Definition: vpThread.h:35