src/posix-lock.cpp

   1 /*
   2 libfmail: Simple Lock 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 #include <stdio.h>
  22 #include <string.h>
  23 #include <malloc.h>
  24
  25 #include <pthread.h>
  26 #include <libfmail/lock.h>
  27
  28 struct _oslock{
  29         pthread_mutex_t lock;
  30 };
  31
  32 Lock::Lock(){
  33         os_lock = (OSLock*)malloc(sizeof(OSLock));
  34         pthread_mutex_init(&(os_lock->lock), NULL);
  35 }
  36
  37 Lock::~Lock(){
  38         pthread_mutex_destroy(&(os_lock->lock));
  39         free(os_lock);
  40 }
  41
  42 int Lock::Acquire(){
  43         return pthread_mutex_lock(&(os_lock->lock));
  44 }
  45
  46 int Lock::Release(){
  47         return pthread_mutex_unlock(&(os_lock->lock));
  48 }
  49
  50 int Lock::TryAcquire(){
  51         return pthread_mutex_trylock(&(os_lock->lock));
  52 }
  53
  54