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#ifndef __Semaphore_h |
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#define __Semaphore_h |
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#ifdef linux
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#include <iostream.h> |
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/*
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#include <unistd.h> //sleep |
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#include <signal.h> |
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#include <stdio.h> |
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#include <stdlib.h> //exit |
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*/
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#include <errno.h> |
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#include <sys/ipc.h> //ftok() |
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#include <sys/types.h> //key ??? |
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#include <sys/sem.h> //semget |
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#endif |
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class Semaphore |
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{ |
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public: |
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Semaphore(); |
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Semaphore(char* path, char id, unsigned int permissions); |
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~Semaphore(); |
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int create(); |
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void attach(char* path, char id, unsigned int permissions); |
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int destroy(); |
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void wait(); |
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void signal(); |
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int semset(int i); |
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private: |
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union semun
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{
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int val; //value for SETVAL
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struct semid_ds *buf; //buffer for IPC_STAT, IPC_SET
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unsigned short int *array; //array for GETALL, SETALL
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struct seminfo *__buf; //buffer for IPC_INFO
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};
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int needs_attach; |
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int semid; |
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int proc_id; |
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semun arg; |
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}; |
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#endif |