From 9d0efbb3aeef0490d227c9b98bd478ac1964d16d Mon Sep 17 00:00:00 2001 From: Christopher Faylor Date: Fri, 7 Jun 2002 03:44:33 +0000 Subject: * autoload.cc (timeGetDevCaps): Define new autoload function. (timeGetTime): Ditto. (timeBeginPeriod): Ditto. (timeEndPeriod): Ditto. * hires.h (hires_base): New class. Renamed from hires. (hires_us): New class. (hires_ms): New class. * strace.cc (strace::microseconds): Use hires_us class. * times.cc (gettimeofday): Use hires-ms class. (hires_us::prime): Renamed from hires::prime. (hires_us::usecs): Renamed from hires:usecs. (hires_ms::prime): New method. (hires_ms::usecs): New method. (hires_ms::~hires_ms): New destructor. --- winsup/cygwin/ChangeLog | 17 +++++++++++++++++ winsup/cygwin/autoload.cc | 4 ++++ winsup/cygwin/hires.h | 29 ++++++++++++++++++++++++++--- winsup/cygwin/strace.cc | 2 +- winsup/cygwin/times.cc | 47 +++++++++++++++++++++++++++++++++++++++++++---- 5 files changed, 91 insertions(+), 8 deletions(-) diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog index 75d49d070..245767779 100644 --- a/winsup/cygwin/ChangeLog +++ b/winsup/cygwin/ChangeLog @@ -1,3 +1,20 @@ +2002-06-06 Christopher Faylor + + * autoload.cc (timeGetDevCaps): Define new autoload function. + (timeGetTime): Ditto. + (timeBeginPeriod): Ditto. + (timeEndPeriod): Ditto. + * hires.h (hires_base): New class. Renamed from hires. + (hires_us): New class. + (hires_ms): New class. + * strace.cc (strace::microseconds): Use hires_us class. + * times.cc (gettimeofday): Use hires-ms class. + (hires_us::prime): Renamed from hires::prime. + (hires_us::usecs): Renamed from hires:usecs. + (hires_ms::prime): New method. + (hires_ms::usecs): New method. + (hires_ms::~hires_ms): New destructor. + 2002-06-06 Christopher Faylor * autoload.cc (noload): Correctly save argument count register. diff --git a/winsup/cygwin/autoload.cc b/winsup/cygwin/autoload.cc index 7776896e3..9bae17deb 100644 --- a/winsup/cygwin/autoload.cc +++ b/winsup/cygwin/autoload.cc @@ -504,4 +504,8 @@ LoadDLLfuncEx (waveOutSetVolume, 8, winmm, 1) LoadDLLfuncEx (waveOutUnprepareHeader, 12, winmm, 1) LoadDLLfuncEx (waveOutPrepareHeader, 12, winmm, 1) LoadDLLfuncEx (waveOutWrite, 12, winmm, 1) +LoadDLLfuncEx (timeGetDevCaps, 8, winmm, 1) +LoadDLLfuncEx (timeGetTime, 0, winmm, 1) +LoadDLLfuncEx (timeBeginPeriod, 4, winmm, 1) +LoadDLLfuncEx (timeEndPeriod, 4, winmm, 1) } diff --git a/winsup/cygwin/hires.h b/winsup/cygwin/hires.h index c341aa287..611b2df0d 100644 --- a/winsup/cygwin/hires.h +++ b/winsup/cygwin/hires.h @@ -11,14 +11,37 @@ details. */ #ifndef __HIRES_H__ #define __HIRES_H__ -class hires +#include + +class hires_base { + protected: int inited; + virtual void prime () {} + public: + virtual LONGLONG usecs (bool justdelta) {return 0LL;} + virtual ~hires_base () {} +}; + +class hires_us : hires_base +{ LARGE_INTEGER primed_ft; LARGE_INTEGER primed_pc; double freq; - void prime () __attribute__ ((regparm (1))); + void prime (); + public: + LONGLONG usecs (bool justdelta); +}; + +class hires_ms : hires_base +{ + DWORD initime_ms; + LARGE_INTEGER initime_us; + UINT minperiod; + void prime (); public: - LONGLONG usecs (bool justdelta) __attribute__ ((regparm (2))); + LONGLONG usecs (bool justdelta); + ~hires_ms (); }; + #endif /*__HIRES_H__*/ diff --git a/winsup/cygwin/strace.cc b/winsup/cygwin/strace.cc index f0eb799da..5a4549161 100644 --- a/winsup/cygwin/strace.cc +++ b/winsup/cygwin/strace.cc @@ -63,7 +63,7 @@ strace::hello() int strace::microseconds () { - static hires now; + static hires_us now; return (int) now.usecs (true); } diff --git a/winsup/cygwin/times.cc b/winsup/cygwin/times.cc index a81201e7b..a64ee3d86 100644 --- a/winsup/cygwin/times.cc +++ b/winsup/cygwin/times.cc @@ -143,9 +143,9 @@ totimeval (struct timeval *dst, FILETIME *src, int sub, int flag) /* FIXME: Make thread safe */ extern "C" int -gettimeofday(struct timeval *tv, struct timezone *tz) +gettimeofday (struct timeval *tv, struct timezone *tz) { - static hires gtod; + static hires_ms gtod; static bool tzflag; LONGLONG now = gtod.usecs (false); if (now == (LONGLONG) -1) @@ -580,7 +580,7 @@ cygwin_tzset () } void -hires::prime () +hires_us::prime () { LARGE_INTEGER ifreq; if (!QueryPerformanceFrequency (&ifreq)) @@ -612,7 +612,7 @@ hires::prime () } LONGLONG -hires::usecs (bool justdelta) +hires_us::usecs (bool justdelta) { if (!inited) prime (); @@ -633,3 +633,42 @@ hires::usecs (bool justdelta) now.QuadPart = (LONGLONG) (freq * (double) (now.QuadPart - primed_pc.QuadPart)); return justdelta ? now.QuadPart : primed_ft.QuadPart + now.QuadPart; } + +void +hires_ms::prime () +{ + TIMECAPS tc; + FILETIME f; + int priority = GetThreadPriority (GetCurrentThread ()); + SetThreadPriority (GetCurrentThread (), THREAD_PRIORITY_TIME_CRITICAL); + + if (timeGetDevCaps (&tc, sizeof (tc)) != TIMERR_NOERROR) + minperiod = 0; + else + { + minperiod = min (max(tc.wPeriodMin, 1), tc.wPeriodMax); + timeBeginPeriod (minperiod); + } + initime_ms = timeGetTime (); + GetSystemTimeAsFileTime (&f); + SetThreadPriority (GetCurrentThread (), priority); + initime_us.HighPart = f.dwHighDateTime; + initime_us.LowPart = f.dwLowDateTime; + initime_us.QuadPart /= 10; +} + +LONGLONG +hires_ms::usecs (bool justdelta) +{ + if (!inited) + prime (); + DWORD now = timeGetTime (); + // FIXME: Not sure how this will handle the 49.71 day wrap around + LONGLONG res = initime_us.QuadPart + ((LONGLONG) (now - initime_ms) * 1000); + return res; +} + +hires_ms::~hires_ms () +{ + timeEndPeriod (minperiod); +} -- cgit v1.2.3