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.
* times.cc (JITTER): Remove.
(gtod): Revert to process-local variable.
(hires_ms::nsecs): Just return system time to disallow discrepancy with
the OS.
(hires_ms::resolution): Return coarsest timer value from OS. Add
comment to explain why.
(clock_setres): Ditto.
(pthread_getcpuclockid): Export.
* hires.h (PID_TO_CLOCKID): New macro.
(CLOCKID_TO_PID): New macro.
(CLOCKID_IS_PROCESS): New macro.
(THREADID_TO_CLOCKID): New macro.
(CLOCKID_TO_THREADID): New macro.
(CLOCKID_IS_THREAD): New macro.
* ntdll.h (enum _THREAD_INFORMATION_CLASS): Add ThreadTimes.
* posix.sgml (std-notimpl): Add clock_getcpuclockid and
pthread_getcpuclockid from here...
(std-susv4): ... to here.
(std-notes): Remove limitations of clock_getres and clock_gettime.
Note limitation of timer_create to CLOCK_REALTIME.
* sysconf.cc (sca): Set _SC_CPUTIME to _POSIX_CPUTIME, and
_SC_THREAD_CPUTIME to _POSIX_THREAD_CPUTIME.
* thread.cc (pthread_getcpuclockid): New function.
* timer.cc (timer_create): Set errno to ENOTSUP for CPU-time clocks.
* times.cc (clock_gettime): Handle CLOCK_PROCESS_CPUTIME_ID and
CLOCK_THREAD_CPUTIME_ID.
(clock_getres): Ditto.
(clock_settime): Set errno to EPERM for CPU-time clocks.
(clock_getcpuclockid): New function.
* include/pthread.h (pthread_getcpuclockid): Declare.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
* times.cc: Ditto.
localtime, gmtime).
(FACTOR): Add comment.
(NSPERSEC): Ditto.
(JITTER): New definition. Comment.
(systime_ns): Avoid gratuitous copying of the value returned by
GetSystemTimeAsFileTime.
(corelocaltime, localtime, gmtime): Remove very old, unused code block.
(cygwin_tzset): Remove.
(hires_ms::timeGetTime_ns): Add missing semicolon in comment.
(hires_ms::nsecs): Redefine check for difference between internal
timer value and system time.
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. Document entire functionality
of timeGetTime in case we need it.
(hires_ms::resolution): Try a call to NtQueryTimerResolution
to fetch current period. Fall back to heuristic if that fails.
Cast to DWORD in assignments to minperiod.
(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. Use
status code from NtSetTimerResolution to compute errno.
Convert period to ULONGLONG and store 100ns value to simplify code.
* 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.
(hires_us): Specify that hires_base is a public import.
(hires_ms): Ditto.
* times.cc (gtod): Move earlier in file.
(settimeofday): Reset gtod so that base will be subsequently recalculated.
* hires.h (hires_ms): Change initime_us to initime_ns, with 10x
more resolution.
(hires_ms::nsecs): New prototype.
(hires_ms::usecs, hires_ms::msecs, hires_ms::uptime): Adjust.
* times.cc (systime_ns): New helper function.
(hires_ms::prime): Use it for more resolution.
(hires_ms::usecs): Change to...
(hires_ms::nsecs): ...with more resolution.
(clock_gettime): Use more resolution.
(systime): Rewrite in terms of systime_ns.
(timespec_to_filetime): Rewrite math to reflect true operation.
* fhandler_disk_file.cc (utimens_fs): Use higher resolution.
(hires_ms::initime_us): Just define as LONGLONG.
(hires_ms::uptime): New function.
* select.cc (select_stuff::wait): Use gtod for timing to attempt to avoid
windows 32 bit wraparound.
* times.cc (systime): New function.
(times): Replace GetTickCount with gtod.uptime.
(hires_us::prime): Use systime() to calculate system time rather than calling
GetSystemTimeAsFileTime directly.
(hires_ms::prime): Ditto. Eliminate initime_ms.
(hires_ms::usecs): Try harder to detect wraparound.
* fhandler_proc.cc (format_proc_partitions): Set drive_size to zero to avoid a
compiler warning.
* hires.h (hires_ms::minperiod): Remove static designation.
(hires::began_period): New field.
* signal.cc: Include headers required for cygheap.h now that gtod lives in the
cygheap.
* timer.c: Ditto.
* times.cc (gtod): Delete variable.
(gtod::minperiod): Ditto.
(gtod::began_period): Define.
(hires_ms::prime): Add more debugging output. Call timeBeginPeriod only when
!began_period.
calculated mask in debugging output.
* sigproc.h (set_signal_mask): Reflect above change in declaration.
* path.cc (mount_item::build_win32): Take path apart before feeding it to
fnmunge. Throughout, change use of _reent_winsup()-> to _my_tls.locals.
instead. Throughout, remove obsolete MT_SAFE/_CYG_THREAD_FAILSAFE
considerations. Througout, add cygtls.h include.
* Makefile.in (DLL_OFILES): Add cygtls.o. Add some more objects to the
-fomit-frame-pointer list.
* acconfig.h: Remove obsolete settings.
* config.h.in: Ditto.
* bsdlib.cc: Add cygtls.h include.
* configure.in: Remove --enable-extra-threadsafe-checking.
* configure: Regenerate.
* cygtls.h (_local_storage): New struct renamed from _winsup_t (sic).
(_threadinfo:local_clib): Add new field.
(_threadinfo::locals): Ditto.
(_threadinfo::init_thread): Accept second _reent * argument.
(_threadinfo::call): Define as regparm.
(CYGTLS_PADSIZE): Remove unnecessary slop.
(_getreent): Define as a macro.
* thread.h: Remove _CYG_THREAD_FAILSAFE and MT_SAFE stuff.
(_winsup_t): Move to cygtls.h.
(ResourceLocks::ResourceLocks): Eliminate empty constructor.
(MTinterface::reents): Eliminate.
(MTinterface::thread_self_key): Eliminate.
(MTinterface::MTinterface): Eliminate.
* dcrt0.cc: Include stdio.h for _impure_ptr initialization.
(do_global_ctors): Remove run_ctors_p (sic) considerations. Don't call atexit
here.
(__main): Initialize destructors for user here.
(dll_crt0_1): Accept a dummy argument. Don't call init_thread here. Don't set
_impure_ptr here. Call do_global_ctors after more things have been
initialized.
(_dll_crt0): Define zeros buffer as max of needed size of CYGTLS_PADSIZE so
that it can be used for two purposes while minimizing stack usage. Initialize
_impure_ptr specifically, for speed. Call dll_crt0_1 with buffer argument.
(cygwin_dll_init): Call dll_crt0_1 with dummy argument.
* dtable.cc (dtable::find_unused_handle): Remove call to AssertResourceOwner.
* exceptions.cc: Move _threadinfo stuff to new file.
* cygtls.cc: New file.
* gentls_offsets: Accommodate increasing complexity of cygtls.h.
* hires.h (hires_base::~hires_base): Remove.
* init.cc (dll_entry): Remove setting of reents.
* thread.cc: Remove syslog.h include.
(__getreent): Simplify to use _my_tls.
(_reent_winsup): Delete.
(AssertResourceOwner): Delete.
(MTinterface::Init): Remove setting of _clib and _winsup, with all that
entails.
(MTinterface::fixup_after_fork): Ditto.
(pthread::thread_init_wrapper): Ditto. Also remove call to
set_tls_self_pointer.
(pthread::set_tls_self_pointer): Eliminate.
(pthread::get_tls_self_pointer): Just return _my_tls.tid;
(__reent_t::init_clib): Eliminate.
* tlsoffsets.h: Regenerate.
resolution. Fix test for negative remainder. Use timeGetTime through gtod.
(sleep): Round up return value. Christopher Faylor <cgf@redhat.com>
* hires.h (HIRES_DELAY_MAX): Define.
(hires_ms::minperiod): Declare static.
(hires_ms::resolution): New.
(hires_ms::dmsecs): New.
(hires_ms::prime): Return UINT.
(gtod): Declare.
* times.cc (hires_ms::prime): Always calculate minperiod and set it to 1 in
case of failure. Return minperiod.
(hires_ms::resolution): Define.
(hires_ms::~hires_ms): Delete.
(hires_ms::usecs): Check minperiod to prime.
(gtod) Define as global.
(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.
* strace.cc (strace::microseconds): Use hires class for calculating times.
* sync.h (new_muto): Use NO_COPY explicitly in declaration.
* times.cc (gettimeofday): Reflect change in usecs argument.
(hires::usecs): Ditto. Changed name from utime.
* winsup.h (NO_COPY): Add nocommon attribute to force setting aside space for
variable.
* regcomp.c (REQUIRE): Add a void cast to bypass a warning.
Corinna Vinschen