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/* Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
*/
#define import_spp
#define import_libc
#define import_stdio
#define import_fset
#include <iraf.h>
void setbuffer (FILE *fp, char *buf, int size);
/* SETBUF -- Assign a buffer to be used by the i/o system to access a file.
** Should be called after opening the file but before doing any i/o.
*/
void
setbuf (
FILE *fp,
char *buf
)
{
setbuffer (fp, buf, BUFSIZ);
}
/* SETBUFFER -- Assign a buffer of arbitrary size to be used by the i/o system
** to access a file. Should be called after opening the file but before doing
** any i/o. If the the pointer buf has the value NULL, i/o is unbuffered
** (or as close to unbuffered as we can manage).
*/
void
setbuffer (
FILE *fp,
char *buf,
int size
)
{
register XINT fd = fileno(fp);
if (buf == NULL)
c_fseti (fd, F_BUFSIZE, 1);
else {
c_fseti (fd, F_BUFPTR, Memcptr(buf));
c_fseti (fd, F_BUFSIZE, size);
}
}
/* SETLINEBUF -- Set line buffered mode for a file. A line buffered file
* buffers each line and flushes it to the output device when newline is
* seen. We may be even after doing i/o to the file.
*/
void
setlinebuf (
FILE *fp
)
{
register XINT fd = fileno(fp);
if (c_fstati (fd, F_BUFSIZE) < SZ_LINE)
c_fseti (fd, F_BUFSIZE, SZ_LINE);
c_fseti (fd, F_FLUSHNL, YES);
}
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