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Implement POSIX.1-2004 Monotonic Clock.

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* hires.h: Change hires_us to hires_ns, with nanosecond resolution.
(hires_ns::primed_ft): Remove.
(hires_ns::nsecs): New prototype.
(hires_ns::usecs): Rewrite in terms of nsecs.
(hires_ns::resolution): New prototype.
* times.cc: Change hires_us to hires_ns.
(ntod): Declare.
(systime): Remove.
(hires_ns::prime): Increase resolution to nanoseconds.
(hires_ns::nsecs): Rename usecs to nsecs to reflect increased resolution.
Remove justdelta argument.
(hires_ns::resolution): New function.
(clock_gettime): Accept CLOCK_MONOTONIC.
Use EINVAL instead of ENOSYS per POSIX.1-2004.
(clock_getres): Ditto.
(clock_setres): Use EINVAL instead of ENOSYS to conform with other
implementations.
* strace.cc (strace::microseconds): Adjust for hires_ns.
* sysconf.cc (sca): Set _SC_MONOTONIC_CLOCK to _POSIX_MONOTONIC_CLOCK.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
This commit is contained in:
Yaakov Selkowitz
2010-08-09 16:47:48 +00:00
parent f717289618
commit b150f5236b
6 changed files with 99 additions and 37 deletions
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3
winsup/cygwin/include/cygwin/version.h
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@ -389,12 +389,13 @@ details. */
227: Add pseudo_reloc_start, pseudo_reloc_end, image_base to per_process.
228: CW_STRERROR added.
229: Add mkostemp, mkostemps.
230: Add CLOCK_MONOTONIC.
*/
/* Note that we forgot to bump the api for ualarm, strtoll, strtoull */
#define CYGWIN_VERSION_API_MAJOR 0
#define CYGWIN_VERSION_API_MINOR 229
#define CYGWIN_VERSION_API_MINOR 230
/* There is also a compatibity version number associated with the
shared memory regions. It is incremented when incompatible