[unix-history] / src / libNS / READ_ME

Thu Nov 16 20:07:42 PST 1978

This represents an otherwise invisble extension to the standard i/o
library to allow streams to be open with concurrent read/write
capabilities. To incorporate the changes, recompile all C routines
in the library with the new header.

Ammended manual pages are included.

			Keith Sklower

[Note by Bill Joy: This is a modification of an (old) pdp-11 version
of the standard i/o library, but should go easily into the new stuff.
It has been used in a Modula Compiler for the PDP/11 version of UNIX.]

Fri Feb 23 10:15:27 PST 1979

It should be noted that the structure _iobuf should be exactly like that
of the old structure, except for the addition of _delta, at the end. This
is because _doprint is usually coded in assembly language and need not be
changed if the field _delta (which it does not need to reference) is kept
at the end.  The structures vary from version 6 to VAX unix.

			Keith Sklower.
Commit	Line	Data
1a11d215 KS	1	Thu Nov 16 20:07:42 PST 1978
	2
	3	This represents an otherwise invisble extension to the standard i/o
	4	library to allow streams to be open with concurrent read/write
	5	capabilities. To incorporate the changes, recompile all C routines
	6	in the library with the new header.
	7
	8	Ammended manual pages are included.
	9
	10	Keith Sklower
	11
	12	[Note by Bill Joy: This is a modification of an (old) pdp-11 version
	13	of the standard i/o library, but should go easily into the new stuff.
	14	It has been used in a Modula Compiler for the PDP/11 version of UNIX.]
	15
	16	Fri Feb 23 10:15:27 PST 1979
	17
	18	It should be noted that the structure _iobuf should be exactly like that
	19	of the old structure, except for the addition of _delta, at the end. This
	20	is because _doprint is usually coded in assembly language and need not be
	21	changed if the field _delta (which it does not need to reference) is kept
	22	at the end. The structures vary from version 6 to VAX unix.
	23
	24	Keith Sklower.