#ifndef _SVSEM_UTIL_H
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#define _SVSEM_UTIL_H
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#include "usg_common.h"
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class SvsemUtil {
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public:
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static int get(key_t key, int nsems, unsigned short * arr_val) ;
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/* Reserve semaphore (blocking), return 0 on success, or -1 with 'errno'
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set to EINTR if operation was interrupted by a signal handler */
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/* Reserve semaphore - decrement it by 1 */
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static int dec(int semId) ;
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static int dec_nowait(int semId) ;
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static int dec_timeout(const int semId, const struct timespec *timeout) ;
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/**
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* If sem_op equals 0, the value of the semaphore is checked to see whether it
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* currently equals 0. If it does, the operation completes immediately; otherwise,
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* semop() blocks until the semaphore value becomes 0.
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*/
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static int zero(int semId) ;
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static int zero_nowait(int semId) ;
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static int zero_timeout(const int semId, const struct timespec *timeout) ;
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/* Release semaphore - increment it by 1 */
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static int inc(int semId) ;
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static int set(int semId, int val) ;
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static int cond_wait(int semid ) ;
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static int cond_signal(int semid ) ;
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static void remove(int semid) ;
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};
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#endif
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