src/winsup/cygwin autoload.cc hires.h ntdll.h ...

[corinna@cygwin.com]

CVSROOT:	/cvs/src
Module name:	src
Branch: 	cv-post-1_7_9
Changes by:	corinna@sourceware.org	2011-03-11 10:21:55

Modified files:
	winsup/cygwin  : autoload.cc hires.h ntdll.h path.cc times.cc 

Log message:
	* autoload.cc (winmm): Rremove time functions.  Don't treat
	unloadable wave functions as fatal.
	* hires.h (hires_ms::timeGetTime_ns): New private method.
	(hires_ms::dmsecs): Call timeGetTime_ns here.
	* ntdll.h (struct _KSYSTEM_TIME): Define.
	(KUSER_SHARED_DATA): Redefine to allow access to InterruptTime.
	(SharedUserData): Define here.
	(NtQueryTimerResolution): Declare.
	(NtSetTimerResolution): Declare.
	* path.cc (SharedUserData): Move to ntdll.h.
	* times.cc (hires_ms::timeGetTime_ns): New private method.
	Use throughout instead of timeGetTime.
	(hires_ms::resolution): Try a call to NtQueryTimerResolution
	to fetch current period.  Fall back to heuristic if that fails.
	(clock_setres): Align period to possible values per a call to
	NtQueryTimerResolution.  Explain why.  Replace calls to
	timeBeginPeriod and timeEndPeriod with underlying call to
	NtSetTimerResolution.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/winsup/cygwin/autoload.cc.diff?cvsroot=src&only_with_tag=cv-post-1_7_9&r1=1.189&r2=1.189.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/winsup/cygwin/hires.h.diff?cvsroot=src&only_with_tag=cv-post-1_7_9&r1=1.16&r2=1.16.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/winsup/cygwin/ntdll.h.diff?cvsroot=src&only_with_tag=cv-post-1_7_9&r1=1.106&r2=1.106.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/winsup/cygwin/path.cc.diff?cvsroot=src&only_with_tag=cv-post-1_7_9&r1=1.626&r2=1.626.2.1
http://sourceware.org/cgi-bin/cvsweb.cgi/src/winsup/cygwin/times.cc.diff?cvsroot=src&only_with_tag=cv-post-1_7_9&r1=1.103&r2=1.103.2.1