73 lines
934 B
C++
Executable File
73 lines
934 B
C++
Executable File
#ifndef MT_SEMAPHORE_H
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#define MT_SEMAPHORE_H
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#include "base.h"
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#include <semaphore.h>
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namespace mt
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{
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class semaphore
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{
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MT_PREVENT_COPY(semaphore)
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public:
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typedef semaphore this_type;
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typedef void base_type;
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semaphore(void)
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{
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sem_init(&(this->s), 0, 0);
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}
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semaphore(int value)
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{
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sem_init(&(this->s), 0, value);
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}
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~semaphore(void)
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{
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sem_destroy(&(this->s));
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}
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void post(void)
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{
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sem_post(&(this->s));
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}
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/*
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void post(int n)
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{
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sem_post_multiple(&(this->s), n);
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}
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*/
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void wait(void)
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{
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sem_wait(&(this->s));
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}
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bool trywait(void)
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{
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return (sem_trywait(&(this->s)) == 0);
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}
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//jnoguera 11-Nov-2011
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int available()
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{
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int value;
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sem_getvalue( &(this->s), &value );
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return value;
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}
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private:
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sem_t s;
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};
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}
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#endif // MT_SEMAPHORE_H
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