58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/*
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* ser2net - A program for allowing telnet connection to serial ports
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* Copyright (C) 2001 Corey Minyard <minyard@acm.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef SER2NET_LOCKING_H
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#define SER2NET_LOCKING_H
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#ifdef USE_PTHREADS
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#include <pthread.h>
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/* #define LOCKING_DEBUG */
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#ifdef LOCKING_DEBUG
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#define LOCKDEBUG_PRINT(name, lock) printf("%s %p: %s:%d\n", name, \
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&lock, __FILE__, __LINE__)
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#else
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#define LOCKDEBUG_PRINT(name, lock) do { } while (0)
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#endif
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#define DEFINE_LOCK(scope, name) scope pthread_mutex_t name;
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#define DEFINE_LOCK_INIT(scope, name) scope pthread_mutex_t name \
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= PTHREAD_MUTEX_INITIALIZER;
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#define INIT_LOCK(lock) pthread_mutex_init(&lock, NULL)
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#define FREE_LOCK(lock) pthread_mutex_destroy(&lock)
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#define LOCK(lock) do { LOCKDEBUG_PRINT("LOCK", lock); \
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pthread_mutex_lock(&lock); } while (0)
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#define UNLOCK(lock) do { LOCKDEBUG_PRINT("UNLOCK", lock); \
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pthread_mutex_unlock(&lock); } while (0)
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#else
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#define DEFINE_LOCK(scope, name)
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#define DEFINE_LOCK_INIT(scope, name)
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#define INIT_LOCK(lock) do { } while (0)
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#define FREE_LOCK(lock) do { } while (0)
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#define LOCK(lock) do { } while (0)
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#define UNLOCK(lock) do { } while (0)
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#endif
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#endif /* SER2NET_LOCKING_H */
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