/*
 *  FIFO.H
 *
 *  PUBLIC FIFO STRUCTURES AND DEFINES
 */

#ifndef LIBRARIES_FIFO_H
#define LIBRARIES_FIFO_H

#define FIFONAME    "fifo.library"

#define FIFOF_READ		0x00000100L		//  intend to read from fifo
#define FIFOF_WRITE		0x00000200L		//  intend to write to fifo
#define FIFOF_RESERVED	0xFFFF0000L		//  reserved for internal use
#define FIFOF_NORMAL		0x00000400L		//  request blocking/sig support
#define FIFOF_NBIO		0x00000800L		//  non-blocking IO

#define FIFOF_KEEPIFD	0x00002000L		//  keep fifo alive if data pending
#define FIFOF_EOF			0x00004000L		//  EOF on close
#define FIFOF_RREQUIRED	0x00008000L		//  reader required to exist

#define FREQ_RPEND	1
#define FREQ_WAVAIL	2
#define FREQ_ABORT	3

typedef void *FifoHan;						//  returned by OpenFifo()

#ifndef IN_LIBRARY

FifoHan OpenFifo(char *, long, long);
void CloseFifo(FifoHan, long);
long ReadFifo(FifoHan, char **, long);
long WriteFifo(FifoHan, char *, long);
void RequestFifo(FifoHan, struct Message *, long);
long BufSizeFifo(FifoHan);

#pragma libcall FifoBase OpenFifo 1e 81003
#pragma libcall FifoBase CloseFifo 24 1002
#pragma libcall FifoBase ReadFifo 2a 81003
#pragma libcall FifoBase WriteFifo 30 81003
#pragma libcall FifoBase RequestFifo 36 81003
#pragma libcall FifoBase BufSizeFifo 3c 1

#endif

#endif