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/****************************************************************
* *
* Copyright 2001 Sanchez Computer Associates, Inc. *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
/* iob.h - definitions used with buffered I/O routines */
typedef struct {
int fd; /* descriptor for file */
char *path; /* filename */
int oflag; /* open flags (see the open system call) */
int mode; /* creation mode (see the open system call) */
int blksiz; /* minimum size of block */
int bufsiz; /* size of buffer (blksiz * blocking factor) */
char *buf; /* I/O buffer */
char *bptr; /* pointer to last character read/written + 1 */
int remaining; /* for read: bytes remaining to be read from buffer.
* write: remaining space in buffer */
int write_mode; /* last operation was a write */
} BFILE;
void iob_close(BFILE *bf);
void iob_flush(BFILE *bf);
BFILE *iob_open_rd(char *path, int blksiz, int blkfactor);
BFILE *iob_open_wt(char *path, int blksiz, int blkfactor);
void iob_read(BFILE *bf, char *buf, int nbytes);
void iob_write(BFILE *bf, char *buf, int nbytes);
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