f0968c1e7e
* cygtls.cc (_cygtls::init_thread): Initialize locals.cw_timer. (_cygtls::fixup_after_fork): Ditto. * tlsoffsets.h: Regenerate. * ntdll.h (enum _TIMER_INFORMATION_CLASS): Define. (struct _TIMER_BASIC_INFORMATION): Define. (NtQueryTimer): Declare function. * thread.h (cancelable_wait): Change timeout argument to PLARGE_INTEGER and provide NULL default. (fast_mutex::lock): Adjust accordingly. (pthread_cond::wait): Change timeout argument to PLARGE_INTEGER and default to NULL. * thread.cc (cancelable_wait): Change timeout argument to PLARGE_INTEGER. Initialize _cygtls.locals.cw_timer if needed. Use NT waitable timers for handling timeout. Return remaining time to timeout argument if timeout was relative. (pthread_cond::wait): Change timeout argument to PLARGE_INTEGER. Adjust to change in cancelable_wait. (pthread_mutex::lock): Adjust to change in cancelable_wait. (pthread_spinlock::lock): Ditto. (pthread::join): Ditto. (__pthread_cond_dowait): Change waitlength argument to PLARGE_INTEGER. Adjust to changes in cancelable_wait and pthread_cond::wait. (pthread_cond_timedwait): Adjust to change in __pthread_cond_dowait. (pthread_cond_wait): Ditto. (semaphore::_timedwait): Adjust to change in cancelable_wait. (semaphore::_wait): Ditto. * exceptions.cc (handle_sigsuspend): Ditto. * signal.cc (nanosleep): Ditto. * wait.cc (wait4): Ditto. Fix copyright dates. * times.cc (FACTOR, NSPERSEC): Move from here... * hires.h (FACTOR, NSPERSEC): ...to here.
72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
/* hires.h: Definitions for hires clock calculations
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Copyright 2002, 2003, 2004, 2005, 2009, 2010, 2011 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#ifndef __HIRES_H__
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#define __HIRES_H__
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#include <mmsystem.h>
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/* Conversions for per-process and per-thread clocks */
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#define PID_TO_CLOCKID(pid) (pid * 8 + CLOCK_PROCESS_CPUTIME_ID)
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#define CLOCKID_TO_PID(cid) ((cid - CLOCK_PROCESS_CPUTIME_ID) / 8)
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#define CLOCKID_IS_PROCESS(cid) ((cid % 8) == CLOCK_PROCESS_CPUTIME_ID)
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#define THREADID_TO_CLOCKID(tid) (tid * 8 + CLOCK_THREAD_CPUTIME_ID)
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#define CLOCKID_TO_THREADID(cid) ((cid - CLOCK_THREAD_CPUTIME_ID) / 8)
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#define CLOCKID_IS_THREAD(cid) ((cid % 8) == CLOCK_THREAD_CPUTIME_ID)
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/* Largest delay in ms for sleep and alarm calls.
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Allow actual delay to exceed requested delay by 10 s.
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Express as multiple of 1000 (i.e. seconds) + max resolution
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The tv_sec argument in timeval structures cannot exceed
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HIRES_DELAY_MAX / 1000 - 1, so that adding fractional part
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and rounding won't exceed HIRES_DELAY_MAX */
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#define HIRES_DELAY_MAX ((((UINT_MAX - 10000) / 1000) * 1000) + 10)
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/* 100ns difference between Windows and UNIX timebase. */
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#define FACTOR (0x19db1ded53e8000LL)
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/* # of 100ns intervals per second. */
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#define NSPERSEC 10000000LL
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class hires_base
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{
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protected:
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int inited;
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public:
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void reset() {inited = false;}
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};
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class hires_ns : public hires_base
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{
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LARGE_INTEGER primed_pc;
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double freq;
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void prime ();
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public:
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LONGLONG nsecs ();
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LONGLONG usecs () {return nsecs () / 1000LL;}
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LONGLONG resolution();
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};
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class hires_ms : public hires_base
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{
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LONGLONG initime_ns;
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LONGLONG timeGetTime_ns ();
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void prime ();
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public:
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LONGLONG nsecs ();
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LONGLONG usecs () {return nsecs () / 10LL;}
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LONGLONG msecs () {return nsecs () / 10000LL;}
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UINT dmsecs () { return timeGetTime_ns () / 10000LL; }
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UINT resolution ();
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LONGLONG uptime () {return (nsecs () - initime_ns) / 10000LL;}
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};
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extern hires_ms gtod;
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#endif /*__HIRES_H__*/
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