From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001 From: Joseph Hunkeler Date: Wed, 8 Jul 2015 20:46:52 -0400 Subject: Initial commit --- sys/fio/note.x | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 sys/fio/note.x (limited to 'sys/fio/note.x') diff --git a/sys/fio/note.x b/sys/fio/note.x new file mode 100644 index 00000000..d50ee01d --- /dev/null +++ b/sys/fio/note.x @@ -0,0 +1,29 @@ +# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + +include +include +include + +# NOTE -- Note offset in file for a subsequent SEEK. If text file, the offset +# of the current line is returned; it is only permissible to seek to the +# beginning of a line on a text file. If binary file, the offset returned is +# the offset at which the next BUFFERED i/o transfer will occur. If file is +# being accessed unbuffered random, the concept of file position is meaningless. + +long procedure note (fd) + +int fd +errchk filerr +include + +begin + fp = fiodes[fd] + if (fd <= 0 || fp == NULL) + call filerr (FNAME(fp), SYS_FILENOTOPEN) + + if (FTYPE(fp) == TEXT_FILE) { + call zcall2 (ZNOTTX(fp), FCHAN(fp), boffset[fd]) + return (boffset[fd]) + } else + return (LNOTE(fd)) +end -- cgit