---

PsnSequentialSemaphore.cxx

Go to the documentation of this file.

/*
 * This file is part of openMask © INRIA, CNRS, Universite de Rennes 1 1993-2002, thereinafter the Software
 * 
 * The Software has been developped within the Siames Project. 
 * INRIA, the University of Rennes 1 and CNRS jointly hold intellectual property rights
 * 
 * The Software has been registered with the Agence pour la Protection des
 * Programmes (APP) under registration number IDDN.FR.001.510008.00.S.P.2001.000.41200
 *  
 * This file may be distributed under the terms of the Q Public License
 * version 1.0 as defined by Trolltech AS of Norway and appearing in the file
 * LICENSE.QPL included in the packaging of this file.
 *
 * Licensees holding valid specific licenses issued by INRIA, CNRS or Université de Rennes 1 
 * for the software may use this file in accordance with that specific license
 *
 */
#include <PsnSequentialSemaphore.h>
#include <PsController.h>

PsnSequentialSemaphore::PsnSequentialSemaphore(const int valeurInitiale)  : PsnSemaphore(valeurInitiale){
  v=valeurInitiale;
}

PsnSequentialSemaphore::~PsnSequentialSemaphore() {
}

int PsnSequentialSemaphore::V() {
  v++;
  return v;
}

int PsnSequentialSemaphore::P() {
  v--;
  if (v<0) {
    PsController::error("PsnSequentialSemaphore : P : interblocage");
  }
  return (v+1);
}

---