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1180
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1 #ifndef INCLUDED_SEM
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2 #define INCLUDED_SEM
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3
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4 #include <pthread.h>
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5
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6 typedef struct sem_t {
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7 volatile int value; //セマフォ変数
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8 pthread_mutex_t mutex; //セマフォ操作用のロック
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9 pthread_cond_t cond; //待ち合わせ用の条件変数
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10 } sem_t, *sem_ptr;
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11
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12 class Sem {
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13 public:
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14 /* constructor */
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15 Sem(int value);
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16 ~Sem();
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17 void sem_p();
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18 void sem_v();
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1877
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19 void sem_v1();
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1186
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20 int count();
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1180
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21 /* variables */
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22 private:
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23 sem_t *sem;
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24 };
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25
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26 typedef Sem *SemPtr;
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27
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28 #endif /* INCLUDED_SEM */
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