include/libfmail/semaphore.h

   1 /*
   2 libfmail: Semaphore class
   3
   4 Copyright (C) 2007  Carlos Daniel Ruvalcaba Valenzuela <clsdaniel@gmail.com>
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License along
  17 with this program; if not, write to the Free Software Foundation, Inc.,
  18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 */
  20
  21 typedef struct _ossem OSSem;
  22
  23 class Semaphore{
  24 private:
  25         OSSem *os_sem;
  26         char *sem_name;
  27         int sem_shared;
  28 public:
  29         Semaphore(int value = 0, int shared=0, char *key=NULL);
  30         ~Semaphore();
  31
  32         int TryWait();
  33         int Wait();
  34         int Post();
  35         int getValue(int *val);
  36 };
  37