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Diffstat (limited to 'src/common/util/Condition.h')
-rw-r--r-- | src/common/util/Condition.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/common/util/Condition.h b/src/common/util/Condition.h new file mode 100644 index 00000000..1ee28dbd --- /dev/null +++ b/src/common/util/Condition.h @@ -0,0 +1,42 @@ +/* This file is part of Ingen. Copyright (C) 2006 Dave Robillard. + * + * Ingen is free software; you can redistribute it and/or modify it under the + * terms of the GNU General Public License as published by the Free Software + * Foundation; either version 2 of the License, or (at your option) any later + * version. + * + * Ingen is distributed in the hope that it will be useful, but WITHOUT ANY + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CONDITION_H +#define CONDITION_H + +#include <pthread.h> + + +/** Trivial (but pretty) wrapper around POSIX Conditions (zero memory overhead). + * + * A semaphore that isn't a counter and is slow and NOT realtime safe. + */ +class Condition { +public: + inline Condition() { pthread_cond_init(&_cond, NULL); } + + inline ~Condition() { pthread_cond_destroy(&_cond); } + + inline void signal() { pthread_cond_signal(&_cond); } + inline void wait(Mutex& mutex) { pthread_cond_wait(&_cond, &mutex._mutex); } + +private: + pthread_cond_t _cond; +}; + + +#endif // CONDITION_H + |