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| author | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
|---|---|---|
| committer | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
| commit | 40e5a5811c6ffce9b0974e93cdd927cbcf60c157 (patch) | |
| tree | 4464880c571602d54f6ae114729bf62a89518057 /sys/imfort/doc/bfchan.hlp | |
| download | iraf-osx-40e5a5811c6ffce9b0974e93cdd927cbcf60c157.tar.gz | |
Repatch (from linux) of OSX IRAF
Diffstat (limited to 'sys/imfort/doc/bfchan.hlp')
| -rw-r--r-- | sys/imfort/doc/bfchan.hlp | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/sys/imfort/doc/bfchan.hlp b/sys/imfort/doc/bfchan.hlp new file mode 100644 index 00000000..9641b971 --- /dev/null +++ b/sys/imfort/doc/bfchan.hlp @@ -0,0 +1,27 @@ +.help bfchan Sep86 imfort.bfio +.ih +NAME +bfchan -- return the kernel i/o channel of an open BFIO file +.ih +SYNOPSIS +.nf +integer function bfchan (fd) + +integer fd #I BFIO file descriptor of open file +.fi +.ih +DESCRIPTION +The \fIbfchan\fR procedure is used to get the i/o channel assigned to the +file at open time by the binary file driver in the IRAF kernel. +This may be used as input to the \fIzfiobf\fR binary file driver primitives +if the lowest possible level of binary file i/o is desired (short of talking +directly to the host system). The \fIzfiobf\fR procedures provide a direct +(unbuffered), block oriented, asynchronous binary file i/o interface. +.ih +RETURN VALUE +The i/o channel assigned to the file by the \fIzfiobf\fR binary file driver +at open time is returned as the function value. +.ih +SEE ALSO +The manual pages for the binary file driver. +.endhelp |