1 Revision history for Perl extension Time::HiRes.
4 - workaround for buggy gcc 2.95.3 in openbsd/sparc64
8 - do not use -lrt in Linux (from March Lehmann, perl change #19449)
9 - unnecessary (nanosleep is in libc anyway)
10 - harmful (-lrt slows down execution)
11 - incompatible (with many distributions' pthreads)
14 - do not create files in blib directories under core
15 (perl change #19160, from rgs)
16 - detypo s/VTLARM/VTARLM/ (perl change #19328, from mjd)
19 - guarantee that $xdefine in HiRes.t is always defined
20 (perl change #19109, from IlyaZ)
21 - a cleaner way to detect PERL_CORE (perl change #19111,
25 - add hints/irix.pl to turn off overly POSIX flags that
26 cause hide struct timespec to be hidden (and compilation
27 to fail) (bleadperl change #19085)
28 - documentation tweaks
31 - add c:/temp to the list of temp directories to probe
32 so that cygwin (and win*?) builds are happy. This was
33 needed at least in my cygwin 1.3.20/w2k setup.
36 - modernize the constants code (from Nicholas Clark)
39 - At some point the ability to figure our the correct incdir
40 for EXTERN.h (either a core perl build, or an installed perl)
41 had broken (which lead into all test compiles failing with
42 a core perl build, but thanks to the robustness of Makefile.PL
43 nothing of this was visible). The brokenness seemed to be
44 caused by $ENV{PERL_CORE} not being on for core builds?
45 Now stole a trick from the Encode that sets $ENV{PERL_CORE}
46 right, and both styles of build should work again.
49 - Nicholas Clark noticed that the my_catdir() emulation function
50 was broken (which means that we didn't really work for Perls
52 - inspired by fixing the above made the whole Makefile.PL -w
54 - tightened up the Makefile.PL output, less whitespace
57 - fix from Craig Berry for better building in VMS with PERL_CORE
60 - no functional changes
61 - move lib/Time/HiRes.pm as Hires.pm
62 - libraries scanning was slightly broken (always scanned
63 for a library even when $Config{libs} already had it)
66 - Ray Zimmerman ran into a race condition in Mac OS X.
67 A 0.01-second alarm fired before the test expected.
68 The test first slept indefinitely (blocking for signals)
69 and only after that tested for the signal having been sent.
70 Since the signal had already been sent, the test #12 never
71 completed. The solution: test first, then block.
72 - default to being silent on all probing attempts, set the
73 environment variable VERBOSE to a true value to see the
74 details (the probing command and the possible errors)
77 - do not clear MAN3PODS in Makefile.PL (Radoslaw Zielinski)
78 - INSTALLDIRS => 'perl' missing which means that Time::HiRes
79 cannot be upgraded from CPAN to override the 5.8.0 version
81 - Time::HiRes 1.35 could not be dropped as-is to bleadperl
82 because the include directories did not adjust themselves
83 if $ENV{PERL_CORE} (Hugo van der Sanden)
84 - add documentation about the restart of select() under alarm()
87 - small documentation tweaks
91 - better VMS operation (Craig Berry)
94 - our time machine is accelerating: now works with Perl 5.004_01
95 (tried with 5.003_07 and 5.002 but I get segmentation faults
96 from running the Makefile.PL with those in Tru64 4.0D)
99 - backward compatibility (pre-5.6.0) tweaks:
100 - no XSLoader in 5.00503, use DynaLoader instead
101 - no SvPV_nolen, either
102 - no PerlProc_pause(), either
103 - now tested with 5.00404 and 5.00503
104 - Makefile.PL requires 5.00404 (no more 5.002)
105 - use nanosleep instead of usleep, if it is available (Wilson Snyder)
106 (this means that one can mix subsecond sleeps with alarms)
107 - because of nanosleep we probe for -lrt and -lposix4
108 - the existence of getitimer/nanosleep/setitimer/ualarm/usleep
109 is available by exportable constants Time::HiRes::d_func
110 (since older Perl do not have them in %Config, and even
111 5.8.0 does not probe for nanosleep)
114 - backward compatibility (pre-5.6.1) tweaks:
115 - define NV if no NVTYPE
116 - define IVdf if needed (note: the Devel::PPPort
117 in 5.8.0 does not try hard hard enough since
118 the IVSIZE might not be defined)
119 - define NVgf if needed
120 - grab the typemap from 5.8.0 for the NV stuff
123 - release 1.29_02 as 1.30
127 - fix a silly unclosed comment typo in HiRes.xs
128 - document and export REALTIME_REALPROF (Solaris)
132 - only getitimer(ITIMER_REAL) available in Cygwin and Win32
133 (need to patch this also in Perl 5.[89])
134 - remove CVS revision log from HiRes.xs
138 The following numbered patches refer to the Perl 5.7 changes,
139 you can browse them at http://public.activestate.com/cgi-bin/perlbrowse
141 - 17558: Add #!./perl to the .t
142 - 17201: linux + usemorebits fix, from Rafael Garcia-Suarez
143 - 16198: political correctness, from Simon Cozens
144 - 15857: doc tweaks, from Jarkko Hietaniemi
145 - 15593: optimization in .xs, from Paul Green
146 - 14892: pod fixes, from Robin Barker
147 - 14100: VOS fixes, from Paul Green
148 - 13422: XS segfault, from Marc Lehmann
149 - 13378: whether select() gets restarted on signals, depends
150 - 13354: timing constraints, again, from Andy Dougherty
151 - 13278: can't do subecond alarms with ualarm;
152 break out early if alarms do not seem to be working
153 - 13266: test relaxation (cygwin gets lower hires
154 times than lores ones)
155 - 12846: protect against high load, from Jarkko Hietaniemi
156 - 12837: HiRes.t VMS tweak, from Craig A. Berry
157 - 12797: HiRes.t VMS tweak, from Charles Lane
158 - 12769: HiRes.t VMS tweak, from Craig A. Berry
159 - 12744: gcc vs MS 64-bit constant syntax, from Nick Ing-Simmons
160 - 12722: VMS ualarm for VMS without ualarm, from Charles Lane
161 - 12692: alarm() ain't gonna work if ualarm() ain't,
162 from Gurusamy Sarathy
163 - 12680: minor VMS tweak, from Charles Lane
164 - 12617: don't try to print ints as IVs, from Jarkko Hietaniemi
165 - 12609: croak on negative time, from Jarkko Hietaniemi
166 - 12595: Cygwin rounds up for time(), from Jarkko Hietaniemi
167 - 12594: MacOS Classic timeofday, from Chris Nandor
168 - 12473: allow for more than one second for sleep() and usleep()
169 - 12458: test tuning, relax timing constraints,
170 from Jarkko Hietaniemi
171 - 12449: make sleep() and usleep() to return the number
172 of seconds and microseconds actually slept (analogously
173 with the builtin sleep()), also make usleep() croak if
174 asked for more than 1_000_000 useconds, from Jarkko Hietaniemi
175 - 12366: Time::HiRes for VMS pre-7.0, from Charles Lane
176 - 12199: do not use ftime on Win32, from Gurusamy Sarathy
177 - 12196: use ftime() on Win32, from Artur Bergman
178 - 12184: fix Time::HiRes gettimeofday() on Win32, from Gurusamy Sarathy
179 - 12105: use GetSystemTime() on Win32, from Artur Bergman
180 - 12060: explain the 1e9 seconds problem, from Jarkko Hietaniemi
181 - 11901: UNICOS sloppy division, from Jarkko Hietaniemi
182 - 11797: problem in HiRes.t, from John P. Linderman
183 - 11414: prototype from Time::HiRes::sleep(), from Abhijit Menon-Sen
184 - 11409: Time::HiRes qw(sleep) failed, from Abhijit Menon-Sen
185 - 11270: dynix/ptx 4.5.2 hints fix, from Peter Prymmer
186 - 11032: VAX VMS s/div/lib\$ediv/ fix, from Peter Prymmer
187 - 11011: VAX VMS s/qdiv/div/ fix, from Peter Prymmer
188 - 10953: SCO OpenServer 5.0.5 requires an explicit -lc for usleep(),
190 - 10942: MPE/IX test tweaks, from Mark Bixby
191 - 10784: unnecessary pod2man calls, from Andy Dougherty
192 - 10354: ext/ + -Wall, from Doug MacEachern
193 - 10320: fix the BOOT section to call myU2time correctly
194 - 10317: correct casting for AIX< from H. Merijn Brand
195 - 10119: document that the core time() may be rounding, not truncating
196 - 10118: test fix, from John Peacock
197 - 9988: long =item, from Robin Barker
198 - 9714: correct test output
199 - 9708: test also the scalar aspect of getitimer()
200 - 9705: Add interval timers (setitimer, getitimer)
201 - 9692: do not require at least 5.005 using XS
203 The following changes were made on top of the changes
204 made for Time::HiRes during the Perl 5.7 development
205 cycle that culminated in the release of Perl 5.8.0.
207 - add "require 5.005" to the Makefile.PL
208 - remove the REVISION section (CVS log) from HiRes.pm
209 - add jhi's copyright alongside Douglas'
210 - move HiRes.pm to lib/Time/
212 - modify HiRes.t to use $ENV{PERL_CORE}
213 - modify the original Time::HiRes version 1.20 Makefile.PL
214 to work both with Perl 5.8.0 and the new code with pre-5.8.0
215 Perls (tried with 5.6.1)
216 - tiny tweaks and updates in README and TODO
217 - bump the VERSION to 1.29
219 1.20 Wed Feb 24 21:30 1999
220 - make our usleep and ualarm substitutes into hrt_usleep
221 and hrt_ualarm. This helps static links of Perl with other
222 packages that also have usleep, etc. From
223 Ilya Zakharevich <ilya@math.ohio-state.edu>
224 - add C API stuff. From Joshua Pritikin
225 <joshua.pritikin@db.com>
226 - VMS Makefile.PL fun. From pvhp@forte.com (Peter Prymmer)
227 - hopefully correct "-lc" fix for SCO.
230 1.19 Tue Sep 29 22:30 1998
231 - put VMS gettimeofday() in. Patch is from Sebastian Bazley
232 <seb@stian.demon.co.uk>
233 - change GIMME_V to GIMME to help people with older versions of
235 - fix Win32 version of gettimeofday(). It didn't affect anything,
236 but it confuses people reading the code when the return value
237 is backwards (0 is success).
238 - fix Makefile.PL (more) so that detection of gettimeofday is
241 1.18 Mon Jul 6 22:40 1998
242 - add usleep() for Win32.
243 - fix Makefile.PL to fix reported HP/UX feature where unresolved
244 externals still cause an executable to be generated (though no
245 x bit set). Thanks to David Kozinn for report and explanation.
246 Problems with the fix are mine :)
248 1.17 Wed Jul 1 20:10 1998
249 - fix setitimer calls so microseconds is not more than 1000000.
250 Hp/UX 9 doesn't like that. Provided by Roland B Robert, PhD.
251 - make Win32. We only get gettimeofday (the select hack doesn't
252 seem to work on my Win95 system).
253 - fix test 4 on 01test.t. add test to see if time() and
254 Time::HiRes::time() are close.
256 1.16 Wed Nov 12 21:05 1997
257 - add missing EXTEND in new gettimeofday scalar code.
259 1.15 Mon Nov 10 21:30 1997
260 - HiRes.pm: update pod. Provided by Gisle Aas.
261 - HiRes.xs: if gettimeofday() called in scalar context, do
262 something more useful than before. Provided by Gisle Aas.
263 - README: tell of xsubpp '-nolinenumber' woes. thanks to
264 Edward Henigin <ed@texas.net> for pointing out the problem.
266 1.14 Wed Nov 5 9:40 1997
267 - Makefile.PL: look for setitimer
268 - HiRes.xs: if missing ualarm, but we have setitimer, make up
269 our own setitimer. These were provided by Gisle Aas.
271 1.13 Tue Nov 4 23:30 1997
272 - Makefile.PL: fix autodetect mechanism to do try linking in addition
273 to just compiling; should fix Linux build problem. Fix was provided
276 1.12 Sun Oct 12 12:00:00 1997
277 - Makefile.PL: set XSOPT to '-nolinenumbers' to work around xsubpp bug;
278 you may need to comment this back out if you have an older xsubpp.
279 - HiRes.xs: set PROTOTYPES: DISABLE
281 1.11 Fri Sep 05 16:00:00 1997
283 Had some line commented out that shouldn't have been (testing
286 Previous version was corrupted.
288 1.10 Thu May 22 20:20:00 1997
289 - HiRes.xs, HiRes.pm, t/*:
290 - only compile what we have OS support for (or can
292 - only test what we compiled
293 - gross improvement to the test suite
295 This work was all done by Roderick Schertler
296 <roderick@argon.org>. If you run Linux or
297 one of the other ualarm-less platoforms, and you like this
298 module, let Roderick know; without him, it still wouldn't
299 be working on those boxes...
300 - Makefile.PL: figure out what routines the OS has and
301 only build what we need. These bits were written by Jarkko
302 Hietaniemi <jhi@iki.fi>. Again, gratitude is due...
304 1.02 Mon Dec 30 08:00:00 1996
305 - HiRes.pm: update documentation to say what to do when missing
306 ualarm() and friends.
307 - README: update to warn that ualarm() and friends need to exist
309 1.01 Fri Oct 17 08:00:00 1996
310 - Makefile.PL: make XSPROTOARGS => '-noprototyopes'
311 - HiRes.pm: put blank line between __END__ and =head1 so that
314 1.00 Tue Sep 03 13:00:00 1996
315 - original version; created by h2xs 1.16