Streamline time/times functionality. Remove last remains of former

	Windows 9x compatibility.
	* fhandler_disk_file.cc (fhandler_base::fstat_helper): Drop now unneeded
	casts in calls to_timestruc_t.
	(fhandler_base::utimens_fs): Ditto for timespec_to_filetime.
	* fhandler_proc.cc (format_proc_stat): Ditto for to_time_t.
	* hires.h (class hires_ms): Remove unused member initime_ns.
	Remove declarations for timeGetTime_ns and prime.
	(hires_ms::uptime): Remove.
	* posix_ipc.cc (ipc_cond_timedwait): Ditto for timespec_to_filetime.
	* fhandler_registry.cc (fhandler_registry::fstat): Add cast.
	* resource.cc (fill_rusage): Call NtQueryInformationProcess rather than
	GetProcessTimes to deal with LARGE_INTEGER rather than FILETIME.
	* times.cc: Simplify time handling.  Throughout, use LARGE_INTEGER
	rather than FILETIME to simplify computations.  Throughout use
	{u}int64_t rather than {unsigned} long long.  Drop unneeded casts since
	NSPERSEC is 64 bit anyway.
	(systime_ns): Remove.
	(times): Call NtQuerySystemInformation to fetch boot time.  Call
	NtQueryInformationProcess rather than GetProcessTimes to deal with
	LARGE_INTEGER rather than FILETIME.  Call GetSystemTimeAsFileTime.
	(totimeval): Use constant 1000000 as in other functions.
	(time_t_to_filetime): Remove.
	(to_time_t): Change return type to time_t.
	(time_as_timestruc_t): Rename filetime to systime.
	(time): Ditto. Add cast.
	(hires_ns::nsecs): Fix return type cast.
	(hires_ms::timeGetTime_ns): Remove.
	(hires_ns::prime): Remove.
	(hires_ms::nsecs): Drop call to prime.  Call GetSystemTimeAsFileTime
	directly.  Subtract FACTOR here since it's the only function needing
	to do so.
	(minperiod): Cosmetically change to ULONG.
	(hires_ns::resolution): Fix return type cast.
	(hires_ms::resolution): Simplify, rely on NtQueryTimerResolution.
	* winsup.h: Align time related prototypes to above changes.

1 files changed, 6 insertions, 8 deletions

diff --git a/winsup/cygwin/resource.cc b/winsup/cygwin/resource.cc
index 15ca2208a..25e87e6e0 100644
--- a/winsup/cygwin/resource.cc
+++ b/winsup/cygwin/resource.cc
@@ -65,18 +65,16 @@ add_rusage (struct rusage *r1, struct rusage *r2)
 void __stdcall
 fill_rusage (struct rusage *r, HANDLE h)
 {
-  FILETIME creation_time = {0,0};
-  FILETIME exit_time = {0,0};
-  FILETIME kernel_time = {0,0};
-  FILETIME user_time = {0,0};
+  KERNEL_USER_TIMES kut;
 
   struct timeval tv;
 
-  memset (r, 0, sizeof (*r));
-  GetProcessTimes (h, &creation_time, &exit_time, &kernel_time, &user_time);
-  totimeval (&tv, &kernel_time, 0, 0);
+  memset (&kut, 0, sizeof kut);
+  memset (r, 0, sizeof *r);
+  NtQueryInformationProcess (h, ProcessTimes, &kut, sizeof kut, NULL);
+  totimeval (&tv, &kut.KernelTime, 0, 0);
   add_timeval (&r->ru_stime, &tv);
-  totimeval (&tv, &user_time, 0, 0);
+  totimeval (&tv, &kut.UserTime, 0, 0);
   add_timeval (&r->ru_utime, &tv);
 
   VM_COUNTERS vmc;