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processsemaphoretest.c

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00001 /* ***** BEGIN LICENSE BLOCK *****
00002  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00003  *
00004  * The contents of this file are subject to the Mozilla Public License Version
00005  * 1.1 (the "License"); you may not use this file except in compliance with
00006  * the License. You may obtain a copy of the License at
00007  * http://www.mozilla.org/MPL/
00008  *
00009  * Software distributed under the License is distributed on an "AS IS" basis,
00010  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00011  * for the specific language governing rights and limitations under the
00012  * License.
00013  *
00014  * The Original Code is the SysToMath C Libraries package (LibStmC).
00015  *
00016  * The Initial Developer of the Original Code is
00017  * Tom Michaelis, SysToMath.
00018  * Portions created by the Initial Developer are Copyright (C) 1994-2006
00019  * the Initial Developer. All Rights Reserved.
00020  *
00021  * Contributor(s):
00022  *
00023  * Alternatively, the contents of this file may be used under the terms of
00024  * either the GNU General Public License Version 2 or later (the "GPL"), or
00025  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00026  * in which case the provisions of the GPL or the LGPL are applicable instead
00027  * of those above. If you wish to allow use of your version of this file only
00028  * under the terms of either the GPL or the LGPL, and not to allow others to
00029  * use your version of this file under the terms of the MPL, indicate your
00030  * decision by deleting the provisions above and replace them with the notice
00031  * and other provisions required by the GPL or the LGPL. If you do not delete
00032  * the provisions above, a recipient may use your version of this file under
00033  * the terms of any one of the MPL, the GPL or the LGPL.
00034  *
00035  * ***** END LICENSE BLOCK ***** */
00036 
00037 /******************************************************************************
00038  *                       First Release 1994-07-20
00039  ******************************************************************************/
00040 
00041 
00070 #include <stdio.h>
00071 #include <stm/system.h>
00072 
00075 static StmProcessSemaphore semaphore;
00076 
00079 static int counter;
00080 
00083 static void *handler (void *data)
00084 {
00085     int i, id = * (int *) data;
00086     for (i = 0; i < 10; ++ i)
00087     {
00088         stmProcessSemaphoreAcquire (semaphore);
00089         ++ counter;
00090         printf ("thread%d: Counter value: %d\n", id, counter);
00091         stmProcessSemaphoreRelease (semaphore);
00092     }
00093     return NULL;
00094 }
00095 
00099 int main ()
00100 {
00101     static int id [] = {1, 2};
00102     semaphore = stmProcessSemaphoreCreate (1);
00103     {
00104         StmThread thread1 = stmThreadCreate (handler, id + 0);
00105         StmThread thread2 = stmThreadCreate (handler, id + 1);
00106         stmThreadJoin (thread1, NULL);
00107         stmThreadJoin (thread2, NULL);
00108         stmThreadDestroy (thread1);
00109         stmThreadDestroy (thread2);
00110     }
00111     stmProcessSemaphoreDestroy (semaphore);
00112     return 0;
00113 }
00114 
00115 

© Copyright Tom Michaelis 2002-2007

Distributed under the SysToMath Software License (See the accompanying file license.txt or a copy at www.SysToMath.com).