/*
 * M U L T I C H A N
 *
 * This module manages communications on a multi-channel controller.
 *
 * A multi-channel controller is one where multiple channels or units are on a
 * single controller and share a single command channel.
 *
 * Douglas Clowes, February 2007
 *
 */
#ifndef SICSMULTICHAN
#define SICSMULTICHAN

#define MCC_TIMEOUT     -1
#define MCC_DISCONNECT  -2
#define MCC_RECONNECT   -3
#define MCC_RETRY_CMD   -4
#define MCC_POP_CMD  -5

typedef struct __MultiChan MultiChan, *pMultiChan;

int MultiChanFactory(SConnection *pCon, SicsInterp *pSics,
    void *pData, int argc, char *argv[]);

int MultiChanCreate(const char* controller, pMultiChan* handle);

int MultiChanCreateHost(const char* host,
    const char* port,
    pMultiChan* handle);
int MultiChanDestroy(pMultiChan handle);

int MultiChanReconnect(pMultiChan handle);

mkChannel* MultiChanGetSocket(pMultiChan handle);

typedef int (*MCC_Transmit)(void* context);
typedef int (*MCC_Receive)(void* context, int ch);
int MultiChanEnque(pMultiChan unit, void* context, MCC_Transmit tx, MCC_Receive rx);

int MultiChanWrite(pMultiChan unit, void* buffer, int buflen);

typedef void (*MCC_Notify)(void* context, int event);
void MultiChanSetNotify(pMultiChan unit, void* context, MCC_Notify notify);

int MultiChanGetDelay(pMultiChan unit);
int MultiChanSetDelay(pMultiChan unit, int iDelay);
int MultiChanGetTimeout(pMultiChan unit);
int MultiChanSetTimeout(pMultiChan unit, int timeout);

int MultiChanAction(SConnection *pCon, SicsInterp *pSics,
                        void *pData, int argc, char *argv[]);

#endif /* SICSMULTICHAN */