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# mutex.h

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    00001 /*  Inti: Integrated Foundation Classes
    00002  *  Copyright (C) 2003 The Inti Development Team.
    00003  *
    00004  *  This program is free software; you can redistribute it and/or modify
    00005  *  it under the terms of the GNU General Public License as published by
    00006  *  the Free Software Foundation; either version 2 of the License, or
    00007  *  (at your option) any later version.
    00008  *
    00009  *  This program is distributed in the hope that it will be useful,
    00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
    00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00012  *  GNU Library General Public License for more details.
    00013  *
    00014  *  You should have received a copy of the GNU Library General Public License
    00015  *  along with this program; if not, write to the Free Software
    00016  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
    00017  */
    00018
    00023
    00024 #ifndef INTI_G_MUTEX_H
    00025 #define INTI_G_MUTEX_H
    00026
    00027 #ifndef INTI_SLOT_H
    00028 #include <inti/slot.h>
    00029 #endif
    00030
    00031 #ifndef __G_THREAD_H__
    00032 #include <glib/gthread.h>
    00033 #endif
    00034
    00035 #define INTI_STATIC_RW_LOCK_INIT { G_STATIC_RW_LOCK_INIT }
    00036
    00037 namespace Inti {
    00038
    00039 namespace G {
    00040
    00041 class Error;
    00042
    00108
    00109 class Mutex : public ReferencedObject
    00110 {
    00111         Mutex(const Mutex&);
    00112         Mutex& operator=(const Mutex&);
    00113
    00114         GMutex *mutex_;
    00115         bool locked_;
    00116
    00117 public:
    00120
    00121         Mutex(bool lock_mutex = false);
    00128
    00129         ~Mutex();
    00131
    00135
    00136         GMutex* g_mutex() const { return mutex_; }
    00138
    00139         operator GMutex* () const;
    00141
    00142         bool is_locked() const;
    00145
    00149
    00150         void lock();
    00158
    00159         bool trylock();
    00172
    00173         void unlock();
    00177 };
    00178
    00183
    00184 #define INTI_STATIC_MUTEX_INIT { G_STATIC_MUTEX_INIT }
    00185
    00217
    00218 struct StaticMutex
    00219 {
    00220         GStaticMutex mutex_;
    00221
    00224
    00225         void init();
    00227
    00231
    00232         GStaticMutex* g_static_mutex() const { return const_cast<GStaticMutex*>(&mutex_); }
    00234
    00235         operator GStaticMutex* () const;
    00237
    00241
    00242         void lock();
    00250
    00251         bool trylock();
    00264
    00265         void unlock();
    00270 };
    00271
    00276
    00277 #define INTI_STATIC_REC_MUTEX_INIT { G_STATIC_REC_MUTEX_INIT }
    00278
    00291
    00292 struct StaticRecMutex
    00293 {
    00294         GStaticRecMutex mutex_;
    00295
    00298
    00299         void init();
    00301
    00305
    00306         GStaticRecMutex* g_static_rec_mutex() const { return const_cast<GStaticRecMutex*>(&mutex_); }
    00308
    00309         operator GStaticRecMutex* () const;
    00311
    00312         bool is_locked() const;
    00314
    00318
    00319         void lock(unsigned int depth = 1);
    00327
    00328         bool trylock();
    00336
    00337         void unlock();
    00342
    00343         unsigned int unlock_full();
    00349 };
    00350
    00356
    00357 class RecMutex : public StaticRecMutex
    00358 {
    00359         RecMutex(const RecMutex&);
    00360         RecMutex& operator=(const RecMutex&);
    00361
    00362 public:
    00365
    00366         RecMutex(bool lock_mutex = false, unsigned int depth = 1);
    00370
    00371         ~RecMutex();
    00373
    00374 };
    00375
    00380
    00381 #define INTI_STATIC_RW_LOCK_INIT { G_STATIC_RW_LOCK_INIT }
    00382
    00448
    00449 struct StaticRWLock
    00450 {
    00451         GStaticRWLock lock_;
    00452
    00455
    00456         void init();
    00458
    00462
    00463         GStaticRWLock* g_static_rw_lock() const { return const_cast<GStaticRWLock*>(&lock_); }
    00465
    00466         operator GStaticRWLock* () const;
    00468
    00472
    00473         void reader_lock();
    00483
    00484         bool reader_trylock();
    00492
    00493         void reader_unlock();
    00497
    00498         void writer_lock();
    00505
    00506         bool writer_trylock();
    00513
    00514         void writer_unlock();
    00521 };
    00522
    00528
    00529 class RWLock : public StaticRWLock
    00530 {
    00531         RWLock(const RWLock&);
    00532         RWLock& operator=(const RWLock&);
    00533
    00534 public:
    00537
    00538         RWLock();
    00540
    00541         ~RWLock();
    00544 };
    00545
    00546 } // namespace G
    00547
    00548 } // namespace Inti
    00549
    00550 #endif // INTI_G_MUTEX_H
    00551

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