Classes/Semaphore/Semaphore.h

#ifndef __Semaphore_h
#define __Semaphore_h


#ifdef linux

#include <iostream.h>
/*
#include <unistd.h>                     //sleep
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>                     //exit
*/
#include <errno.h>
        
#include <sys/ipc.h>                    //ftok()
#include <sys/types.h>                  //key ???
#include <sys/sem.h>                    //semget

#endif

class Semaphore
{
        public:
        
                Semaphore();
                Semaphore(char* path, char id, unsigned int permissions);
                ~Semaphore();
                int create();
                void attach(char* path, char id, unsigned int permissions);
                int destroy();
                void wait();
                void signal();
                int semset(int i);      
        
        private:
                
                union semun 
                {
                        int val;                    //value for SETVAL                  
                        struct semid_ds *buf;       //buffer for IPC_STAT, IPC_SET 
                        unsigned short int *array;  //array for GETALL, SETALL 
                        struct seminfo *__buf;      //buffer for IPC_INFO 
        };

                int needs_attach;
                int semid;
                int proc_id;

                semun arg;
};

#endif
1	#ifndef __Semaphore_h
2	#define __Semaphore_h
3
4
5	#ifdef linux
6
7	#include <iostream.h>
8	/*
9	#include <unistd.h> //sleep
10	#include <signal.h>
11	#include <stdio.h>
12	#include <stdlib.h> //exit
13	*/
14	#include <errno.h>
15
16	#include <sys/ipc.h> //ftok()
17	#include <sys/types.h> //key ???
18	#include <sys/sem.h> //semget
19
20	#endif
21
22	class Semaphore
23	{
24	public:
25
26	Semaphore();
27	Semaphore(char* path, char id, unsigned int permissions);
28	~Semaphore();
29	int create();
30	void attach(char* path, char id, unsigned int permissions);
31	int destroy();
32	void wait();
33	void signal();
34	int semset(int i);
35
36	private:
37
38	union semun
39	{
40	int val; //value for SETVAL
41	struct semid_ds *buf; //buffer for IPC_STAT, IPC_SET
42	unsigned short int *array; //array for GETALL, SETALL
43	struct seminfo *__buf; //buffer for IPC_INFO
44	};
45
46	int needs_attach;
47	int semid;
48	int proc_id;
49
50	semun arg;
51	};
52
53	#endif