Date: Sun, 28 Oct 2001 11:54:49 -0800 (PST) From: Matt Dillon <dillon@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/include time.h src/lib/libc/stdtime Makefile.inc time32.c Message-ID: <200110281954.f9SJsnF44189@freefall.freebsd.org>
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dillon 2001/10/28 11:54:49 PST
Modified files:
include time.h
lib/libc/stdtime Makefile.inc
Added files:
lib/libc/stdtime time32.c
Log:
Add routines to convert time_t to/from fixed-bit fields. These routines
serve two purposes: (1) so we can maintain backwards compatibility with
protocols (rwhod, dump, etc...) that either assume time_t is 32 bits or
assume sizeof(time_t) == sizeof(int), or make other similar assumptions.
(2) To tag such routines (by the presence of these calls) for future
cleanup/extension work.
The 32->64 routine, time32_to_time() (when time_t is 64 bits, that is),
is defined specifically to implement temporal locality to properly set the
msb bits of a 64 bit time_t quantity, using the 50 year rule. The locality
code has not been implemented yet (and doesn't need to be for a while),
but that is the intent. This will allow us to maintain backwards protocol
compatibility past 2038.
These routines are intended to be platform and time_t agnostic.
MFC after: 1 week
Revision Changes Path
1.17 +7 -0 src/include/time.h
1.13 +3 -2 src/lib/libc/stdtime/Makefile.inc
1.1 +60 -0 src/lib/libc/stdtime/time32.c (new)
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