Stone Three Foundation Classes

00001 /*
00002  * Stone Three Foundation Class (s3fc) provides a number of utility classes.
00003  * Copyright (C) 2001 by Stone Three Signal Processing (Pty) Ltd.
00004  *
00005  * Authored by Stone Three Signal Processing (Pty) Ltd.
00006  *
00007  * This library is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or (at your option) any later version.
00011  * 
00012  * This library is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  * 
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with this library; if not, write to the Free Software
00019  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00020  * 
00021  * Please see the file 'COPYING' in the source root directory.
00022  */
00023 
00033 #ifndef S3_MUTEX_H
00034 #define S3_MUTEX_H
00035 
00036 #include <pthread.h>
00037 
00038 // forward decl to facilitate friend
00039 class s3_condition;
00040 
00075 class s3_mutex
00076 {
00077    // condition requires the underlying pthread_mutex_t
00078    friend class s3_condition; 
00079   protected:
00083    mutable pthread_mutex_t mutex;
00084   public:
00088    s3_mutex();
00092    ~s3_mutex();
00093   protected:
00098    s3_mutex(const s3_mutex& src);
00102    s3_mutex& operator=(const s3_mutex& src);
00103   public:
00108    void lock() const;
00117    bool try_lock() const;
00122    void unlock() const;
00123 };
00124 
00125 
00126 #endif
s3_mutex.h
