RTS/include/SUNRT/ipcQLib.hh

#ifndef _IPC_Q_LIB_HH_
#define _IPC_Q_LIB_HH_

#include <sys/types.h>

#include <SUNRT/clock.h>

class ipcQClass {
public:
        ipcQClass(int id, int create=1, u_short node_id=0) ;
        ~ipcQClass() ;

        void dup(int tsk, int create=1, u_short node_id=0) ;    // makes this que be a duplicate for task tsk as well...

        int send(void *ptr, int bytes, int tmout) ;
        int receive(void *ptr, int bytes, int tmout) ;
        int peek(void) ;
        static ipcQClass *find(u_short node, int task, int crea=0) ;

        int task ;
        u_short node ;

        u_int snd_seq ;
        u_int rcv_seq ;

        u_int snd_ticks[4] ;    // 0 min, 1 av, 2 max, 3 last
        u_int rcv_ticks[4] ;
        u_int msg_ticks[4] ;

        u_char snd_blocked, rcv_blocked ;

        static class ipcQClass *daqTasks[256] ; // the index is the task number

        static struct ipcQStruct {
                ipcQClass *que ;
                u_short node ;
                int task ;
        } queue_list[256] ;     // the index is just a counter 
        static u_int queue_num ;        // ...with up to queue_num counts


private:
        static const u_int ticker(void) { return getCpuCycle() ; } ;
        int ipc_qid ;
        key_t key ;
} ;

#endif

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