1Revision history for Perl extension Time::HiRes. 2 31.86 [2005-12-17] 4 - HiRes.t:s/ok 32/ok 33/, from Dominic Dunlop 5 - tighten up the clock() test marginally by requiring non-negative 6 - clock_nanosleep() and clock() doc tweaks 7 81.85 [2005-12-16] 9 - the interface to clock_nanosleep() is more natural 10 when it is like (hires) time() (instead of like nanosleep), 11 and the .xs implementation of clock_nanosleep() in 1.84 12 was broken anyway 13 - the semantics of clock() are not quite so silly as I thought, 14 but still somewhat odd, documented as such 15 - additional enhancements to the clock() documentation 16 - add test for clock_nanosleep() (I cannot test this 17 since none of my systems have the function) 18 - add test for clock() 19 201.84 [2005-12-16] 21 - add clock() which returns the processor time in 22 (floating point) seconds since an arbitrary era 23 - add clock_nanosleep() which suspends the current 24 thread until either absolute time or for relative time 25 - [rt.cpan.org #16486] printf missing value in HiRes.t 26 - add constants CLOCKS_PER_SEC, CLOCK_SOFTTIME, TIMER_ABSTIME 27 - tiny typo fixes 28 291.83 [2005-11-19] 30 - has_symbol() was wrong since e.g. ITIMER_VIRTUAL is exported 31 via @EXPORT_OK even when it is not available. This is heinous. 32 @EXPORT_OK should be determined at Makefile.PL time. 33 - be more lenient is testing clock_gettime(): allow more slop, 34 and retry up to three times, sleeping a random nap between 35 the retries 36 - human months are one-based (noticed by Anton Berezin) 37 381.82 [2005-10-06] 39 - CLOCK_REALTIME is an enum value (of the clockid_t enum) 40 in HP-UX (and might be so elsewhere, too), debugged by 41 H. Merijn Brand 42 - include const-c.inc as late as possible (from Randy Kobes, 43 [rt.cpan.org #15552] to avoid undefined usleep() on Win32 44 451.81 [2005-11-05] 46 - try to be more robust and consistent in the detection of 47 CLOCK_REALTIME and ITIMER_VIRTUAL in HiRes.t: the proper 48 way is 49 50 sub has_symbol { 51 my $symbol = shift; 52 eval 'import Time::HiRes qw($symbol)'; 53 return 0 unless $@ eq ''; 54 return exists ${"Time::HiRes::$symbol"}; 55 } 56 57 and then use 58 59 &FOO_BAR 60 61 in the test. All these moves are needed because 62 63 1) one cannot directly do eval 'Time::HiRes::FOO_BAR' 64 because FOO_BAR might have a true value of zero 65 (or in the general case an empty string or even undef) 66 67 2) In case FOO_BAR is not available in this platform, 68 &FOO_BAR avoids the bareword warning 69 70 - wait more (1.5 seconds instead of 0.1) for the CLOCK_REALTIME test 71 but expect the 'customary' slop of 0.20 instead of 0.25 72 - fixed inside a comment HAS_POLL -> TIME_HIRES_NANOSLEEP 73 - at the end of HiRest.t tell how close we were to termination 74 751.80 [2005-11-04] 76 - Gisle noticed a mistake (using HAS_NANOSLEEP) in 1.79 77 781.79 [2005-11-03] 79 - try nanosleep for emulating usleep -- may help in some weird 80 embedded realtime places which have nanosleep but neither usleep 81 nor select nor poll (doesn't have to be weird embedded realtime 82 place, though -- in many places usleep is nanosleep anyway) 83 - try poll for emulating usleep -- this may help some obscure/old 84 SVR4 places that have neither usleep nor select 85 - a redundant test guard in HiRes.t 86 871.78 [2005-11-03] 88 - ITIMER_VIRTUAL detection in HiRes.t had problems (that we cannot 89 in the general case fail already at 'use' phase is suboptimal) 90 - fixes to the documentation of clock_gettime() and clock_getres() 91 921.77 [2005-11-03] 93 - add support for the POSIX clock_gettime() and clock_getres(), 94 if available, either as library calls or as syscalls 95 - be more defensive about missing functionality: break out 96 early (during 'use') if no e.g. clock_getres() is available, 97 and protect our back by trapping those cases also in HiRes.xs 98 - the test added in 1.76 could cause an endless loop e.g. in Solaris, 99 due to mixing of sleep() and alarm() (bad programmer, no cookie!) 100 1011.76 [2005-10-22] 102 - testing for nanosleep had wrong logic which caused nanosleep 103 to become undefined for e.g. Mac OS X 104 - added a test for a core dump that was introduced by Perl 5.8.0 105 safe signals and was fixed for the time of 5.8.1 (one report of 106 the core dump was [perl #20920]), the test skipped pre-5.8.1. 107 - *cough* s/unanosleep/nanosleep/g; *cough* 108 1091.75 [2005-10-18] 110 - installation patch from Gisle Aas: in Perls 5.8.x and later 111 use MakeMaker INSTALLDIRS value of 'perl' instead of 'site'. 112 1131.74 [2005-09-19] 114 - [cpan #14608] Solaris 8 perl 5.005_03 File::Spec module does not have method rel2abs 115 (the workaround is not to use rel2abs, should not be necessary) 116 - [cpan #14642] U2time wrongly exported on the C API 117 (patch supplied by the reporter, SALVA@cpan.org) 118 - add release dates to Changes 119 1201.73 [2005-08-16] 121 - Time::HiRes::nanosleep support for Solaris [PATCH] 122 (POSIX::uname() not available if building with core perl, 123 from Gisle Aas, via perl5-porters, perl change #25295) 124 1251.72 [2005-07-01] 126 - going back to the 1.68 loader setup (using DynaLoader) 127 since too many weird things starting breaking 128 - fix a typo in José Auguste-Etienne's name 129 1301.71 [2005-06-28] 131 - a thinko in the nanosleep() detection 132 - move more changes stuff from the README to Changes 133 - add -w to the Makefile.PL 134 1351.70 [2005-06-26] 136 - oops in 1.69 about @ISA (not affecting anything but silly) 137 - add copyright 2005 to HiRes.pm 138 - add copyright and license to HiRes.xs 139 - add copyrights 2003, 2004, 2005 to README 140 1411.69 [2005-06-25] 142 - actually run a test for nanosleep 143 (if there is no $Config{d_nanosleep}) since e.g. in AIX 4.2 144 it seems that one can link in nanosleep() but then calling 145 it fails instantly and sets errno to ENOSYS (Not implemented). 146 This may be fixable in the AIX case by figuring out the right 147 (realtime POSIX?) libs and whatnot, but in the general case 148 running a real test case is better. (Of course, this change 149 will no doubt run into portability problems because of the 150 execution step...) Note that because of hysterical raisins 151 most Perls do NOT have $Config{d_nanosleep} (scanning for 152 it by Configure would in many platforms require linking in 153 things like -lrt, which would in many platforms be a bad idea 154 for Perl itself). 155 (from José Auguste-Etienne) 156 - support XSLoader also since it's much faster 157 (from Alexey Tourbin) 158 - add SEE ALSO (BSD::Resource and Time::TAI64) 159 1601.68 [2005-05-14] 161 - somehow 1.67 had a lot of doubled lines (a major cut-and-paste 162 error suspected), but miraculously it still worked since the 163 doubling took place below the __END__ token 164 - undef Pause() before defining it to avoid redefinition warnings 165 during compilation in case perl.h had already defined Pause() 166 (part of perl change #24271) 167 - minor doc tweaks 168 1691.67 [2005-05-04] 170 - (internal) don't ignore the return value of gettimeofday() 171 - (external) return undef or an empty if the C gettimeofday() fails 172 (affects Time::HiRes gettimeofday() and the hires time()) 173 1741.66 [2004-12-19] 175 - add nanosleep() 176 - fix the 'hierachy' typo in Makefile.PL [rt.cpan.org #8492] 177 - should now build in Solaris [rt.cpan.org #7165] (since 1.64) 178 - should now build in Cygwin [rt.cpan.org #7535] (since 1.64) 179 - close also [rt.cpan.org #5933] "Time::HiRes::time does not 180 pick up time adjustments like ntp" since ever reproducing it 181 (and therefore verifying a possible fix) in the same environment 182 has become rather unlikely 183 1841.65 [2004-09-18] 185 - one should not mix u?alarm and sleep (the tests modified 186 by 1.65, #12 and #13, hung in Solaris), now we just busy 187 loop executing an empty block 188 - in the documentation underline the unspecificity of mixing 189 sleeps and alarms 190 - small spelling fixes 191 1921.64 [2004-09-16] 193 - regenerate ppport.h with Devel::PPPort 3.03, 194 now the MY_CXT_CLONE is defined in ppport.h, 195 we no more need to do that. 196 197 - the test #12 would often hang in sigsuspend() (at least that's 198 where Mac OS X' ktrace shows it hanging). With the sleep()s 199 changed to sleep(1)s, the tests still pass but no hang after 200 a few hundred repeats. 201 2021.63 [2004-09-01] 203 - Win32 and any ithread build: ppport.h didn't define 204 MY_CXT_CLONE, which seems to be a Time-HiRes-ism. 205 2061.62 [2004-08-31] 207 - Skip testing if under PERL_CORE and Time::HiRes has not 208 been Configured (from Marcus Holland-Moritz, core change 209 #23246) 210 - Use ppport.h generated by Devel::PPPort 3.01, 211 allowing cutting away our own portability code. 212 - Don't use $ENV{PERL_CORE} for < 5.6.0. 213 - Don't use "for my $i" for <= 5.003. 214 - Don't use Pause() for <= 5.003. 215 - Can't use newSVpvf for <= 5.003. 216 (most of the changes from Marcus) 217 2181.61 [2004-08-21] 219 - Win32: reset reading from the performance counters every 220 five minutes to better track wall clock time (thanks to 221 PC timers being often quite bad), should help long-running 222 programs. 223 2241.60 [2004-08-15] 225 - Win32: Patch from Steve Hay 226 [PATCH] Re: [perl #30755] [Win32] Different results from Time::HiRes::gettimeofdayunder the debugger 227 to [perl #30755] reported by Nigel Sandever 228 229 - Cygwin: Use the Win32 recalibration code also in Cygwin if the 230 <w32api/windows.h> APIs are available. Cygwin testing by 231 Yitzchak Scott-Thoennes. 232 233 - Solaris: use -lposix4 to get nanosleep for Solaris 2.6, 234 after that keep using -lrt, patch from Alan Burlison, 235 bug reported in [cpan #7165] 236 2371.59 [2004-04-08] 238 - Change the Win32 recalibration limit to 0.5 seconds and tweak 239 the documentation to blather less about the gory details of the 240 Win32 implementation and more about the complications in general 241 of meddling with the system clock. 242 2431.58 [2004-04-08] 244 - Document the 1.57 change better. 245 2461.57 [2004-07-04] 247 - Win32/Cygwin/MinGW: if the performance counter drifts by more 248 than two seconds from the system clock (due to ntp adjustments, 249 for example), recalibrate our internal counter: from Jan Dubois, 250 based on [cpan #5933] by Jerry D. Hedden. 251 2521.56 [2004-29-02] 253 - Give a clearer message if the tests timeout (perl change #22253) 254 - Don't use /tmp or its moral equivalents (perl bug #15036, 255 perl change #22258) 256 2571.55 [2004-01-14] 258 - Windows: mingw32 patch from Mike Pomraning (use Perl's Const64() 259 instead of VC-specific i64 suffix) 260 2611.54 [2003-12-31] 262 - Solaris: like Tru64 (dec_osf) also Solaris need -lrt for nanosleep 263 2641.53 [2003-12-30] 265 - Windows: higher resolution time() by using the Windows 266 performance counter API, from Jan Dubois and Anton Shcherbinin. 267 The exact new higher resolution depends on the hardware, 268 but it should be quite a bit better than using the basic 269 Windows timers. 270 2711.52 [2003-10-28] 272 - In AIX (v?) with perl 5.6.1 the HiRes.t can hang after 273 the subtest 18. No known analysis nor fix, but added 274 an alarm (that requires fork() and alarm()) to the test. 275 2761.51 [2003-09-22] 277 - doc tweaks from mjd (perl change #20456) 278 - NCR MP-RAS hints file added (svr4.pl) (perl change #21249) 279 2801.50 [2003-08-02] 281 - add a message (for non-core builds) to Makefile.PL about 282 the LC_ALL=C workaround 283 - &Time::HiRes::d_nanosleep was broken (perl change #20131) 284 - the nanosleep() probe was broken (perl change #20061) 285 - use existence instead of definedness for feature probes 286 (perl change #20043) 287 - MPE/iX tweak (perl change #20042) 288 - do not use HAS_NANOSLEEP (perl change #19898) 289 2901.49 [2003-06-23] 291 - UVuf for non-IVSIZE platforms (from Keiichiro Nagano) 292 - OS/2 can always mix subsecond sleeps with signals 293 (part of perl change #19789) 294 2951.48 [2003-06-04] 296 - workaround for buggy gcc 2.95.3 in openbsd/sparc64 297 (perl change #19592) 298 2991.47 [2003-05-03] 300 - do not use -lrt in Linux (from March Lehmann, perl change #19449) 301 - unnecessary (nanosleep is in libc anyway) 302 - harmful (-lrt slows down execution) 303 - incompatible (with many distributions' pthreads) 304 3051.46 [2003-04-25] 306 - do not create files in blib directories under core 307 (perl change #19160, from rgs) 308 - detypo s/VTLARM/VTARLM/ (perl change #19328, from mjd) 309 3101.45 [2003-04-01] 311 - guarantee that $xdefine in HiRes.t is always defined 312 (perl change #19109, from IlyaZ) 313 - a cleaner way to detect PERL_CORE (perl change #19111, 314 from IlyaZ) 315 3161.44 [2003-03-30] 317 - add hints/irix.pl to turn off overly POSIX flags that 318 cause hide struct timespec to be hidden (and compilation 319 to fail) (bleadperl change #19085) 320 - documentation tweaks 321 3221.43 [2003-03-11] 323 - add c:/temp to the list of temp directories to probe 324 so that cygwin (and win*?) builds are happy. This was 325 needed at least in my cygwin 1.3.20/w2k setup. 326 3271.42 [2003-01-07] 328 - modernize the constants code (from Nicholas Clark) 329 3301.41 [2003-01-03] 331 - At some point the ability to figure our the correct incdir 332 for EXTERN.h (either a core perl build, or an installed perl) 333 had broken (which lead into all test compiles failing with 334 a core perl build, but thanks to the robustness of Makefile.PL 335 nothing of this was visible). The brokenness seemed to be 336 caused by $ENV{PERL_CORE} not being on for core builds? 337 Now stole a trick from the Encode that sets $ENV{PERL_CORE} 338 right, and both styles of build should work again. 339 3401.40 [2003-01-03] 341 - Nicholas Clark noticed that the my_catdir() emulation function 342 was broken (which means that we didn't really work for Perls 343 5.002 and 5.003) 344 - inspired by fixing the above made the whole Makefile.PL -w 345 and strict clean 346 - tightened up the Makefile.PL output, less whitespace 347 3481.39 [2003-10-20] 349 - fix from Craig Berry for better building in VMS with PERL_CORE 350 3511.38 [2003-10-13] 352 - no functional changes 353 - move lib/Time/HiRes.pm as Hires.pm 354 - libraries scanning was slightly broken (always scanned 355 for a library even when $Config{libs} already had it) 356 3571.37 [2003-09-23] 358 - Ray Zimmerman ran into a race condition in Mac OS X. 359 A 0.01-second alarm fired before the test expected. 360 The test first slept indefinitely (blocking for signals) 361 and only after that tested for the signal having been sent. 362 Since the signal had already been sent, the test #12 never 363 completed. The solution: test first, then block. 364 - default to being silent on all probing attempts, set the 365 environment variable VERBOSE to a true value to see the 366 details (the probing command and the possible errors) 367 3681.36 [2003-09-12] 369 - do not clear MAN3PODS in Makefile.PL (Radoslaw Zielinski) 370 - INSTALLDIRS => 'perl' missing which means that Time::HiRes 371 cannot be upgraded from CPAN to override the 5.8.0 version 372 (Guido A. Ostkamp) 373 - Time::HiRes 1.35 could not be dropped as-is to bleadperl 374 because the include directories did not adjust themselves 375 if $ENV{PERL_CORE} (Hugo van der Sanden) 376 - add documentation about the restart of select() under alarm() 377 3781.35 [2003-08-24] 379 - small documentation tweaks 380 381 3821.34 [2003-08-22] 383 - better VMS operation (Craig Berry) 384 3851.33 [2003-08-20] 386 - our time machine is accelerating: now works with Perl 5.004_01 387 (tried with 5.003_07 and 5.002 but I get segmentation faults 388 from running the Makefile.PL with those in Tru64 4.0D) 389 3901.32 [2003-08-20] 391 - backward compatibility (pre-5.6.0) tweaks: 392 - no XSLoader in 5.00503, use DynaLoader instead 393 - no SvPV_nolen, either 394 - no PerlProc_pause(), either 395 - now tested with 5.00404 and 5.00503 396 - Makefile.PL requires 5.00404 (no more 5.002) 397 - use nanosleep instead of usleep, if it is available (Wilson Snyder) 398 (this means that one can mix subsecond sleeps with alarms) 399 - because of nanosleep we probe for -lrt and -lposix4 400 - the existence of getitimer/nanosleep/setitimer/ualarm/usleep 401 is available by exportable constants Time::HiRes::d_func 402 (since older Perl do not have them in %Config, and even 403 5.8.0 does not probe for nanosleep) 404 4051.31 [2003-08-19] 406 - backward compatibility (pre-5.6.1) tweaks: 407 - define NV if no NVTYPE 408 - define IVdf if needed (note: the Devel::PPPort 409 in 5.8.0 does not try hard hard enough since 410 the IVSIZE might not be defined) 411 - define NVgf if needed 412 - grab the typemap from 5.8.0 for the NV stuff 413 414 1.31 and 1.32 add more backward compatibility (now all the way 415 back to Perl 5.00404), and using nanosleep() (if available) for 416 subsecond sleeps. 417 4181.30 [2003-08-16] 419 420 - release 1.29_02 as 1.30 421 422 1.30 adds all the changes made during the Perl 5.6->5.7->5.8 423 development cycle. Most notably portability across platforms has been 424 enhanced, and the interval timers (setitimer, getitimer) have been 425 added. Note that the version of Time::HiRes that is included in Perl 426 5.8.0 calls itself 1.20_00, but it is equivalent to this Time::HiRes 427 version. Note also that in 1.30 Wegscheid turns over the maintenance 428 to Jarkko Hietaniemi. 429 4301.29_02 [2003-08-16] 431 432 - fix a silly unclosed comment typo in HiRes.xs 433 - document and export REALTIME_REALPROF (Solaris) 434 4351.29_01 [2003-08-16] 436 437 - only getitimer(ITIMER_REAL) available in Cygwin and Win32 438 (need to patch this also in Perl 5.[89]) 439 - remove CVS revision log from HiRes.xs 440 4411.29_00 [2003-08-14] 442 443 The following numbered patches refer to the Perl 5.7 changes, 444 you can browse them at http://public.activestate.com/cgi-bin/perlbrowse 445 446 - 17558: Add #!./perl to the .t 447 - 17201: linux + usemorebits fix, from Rafael Garcia-Suarez 448 - 16198: political correctness, from Simon Cozens 449 - 15857: doc tweaks, from Jarkko Hietaniemi 450 - 15593: optimization in .xs, from Paul Green 451 - 14892: pod fixes, from Robin Barker 452 - 14100: VOS fixes, from Paul Green 453 - 13422: XS segfault, from Marc Lehmann 454 - 13378: whether select() gets restarted on signals, depends 455 - 13354: timing constraints, again, from Andy Dougherty 456 - 13278: can't do subsecond alarms with ualarm; 457 break out early if alarms do not seem to be working 458 - 13266: test relaxation (cygwin gets lower hires 459 times than lores ones) 460 - 12846: protect against high load, from Jarkko Hietaniemi 461 - 12837: HiRes.t VMS tweak, from Craig A. Berry 462 - 12797: HiRes.t VMS tweak, from Charles Lane 463 - 12769: HiRes.t VMS tweak, from Craig A. Berry 464 - 12744: gcc vs MS 64-bit constant syntax, from Nick Ing-Simmons 465 - 12722: VMS ualarm for VMS without ualarm, from Charles Lane 466 - 12692: alarm() ain't gonna work if ualarm() ain't, 467 from Gurusamy Sarathy 468 - 12680: minor VMS tweak, from Charles Lane 469 - 12617: don't try to print ints as IVs, from Jarkko Hietaniemi 470 - 12609: croak on negative time, from Jarkko Hietaniemi 471 - 12595: Cygwin rounds up for time(), from Jarkko Hietaniemi 472 - 12594: MacOS Classic timeofday, from Chris Nandor 473 - 12473: allow for more than one second for sleep() and usleep() 474 - 12458: test tuning, relax timing constraints, 475 from Jarkko Hietaniemi 476 - 12449: make sleep() and usleep() to return the number 477 of seconds and microseconds actually slept (analogously 478 with the builtin sleep()), also make usleep() croak if 479 asked for more than 1_000_000 useconds, from Jarkko Hietaniemi 480 - 12366: Time::HiRes for VMS pre-7.0, from Charles Lane 481 - 12199: do not use ftime on Win32, from Gurusamy Sarathy 482 - 12196: use ftime() on Win32, from Artur Bergman 483 - 12184: fix Time::HiRes gettimeofday() on Win32, from Gurusamy Sarathy 484 - 12105: use GetSystemTime() on Win32, from Artur Bergman 485 - 12060: explain the 1e9 seconds problem, from Jarkko Hietaniemi 486 - 11901: UNICOS sloppy division, from Jarkko Hietaniemi 487 - 11797: problem in HiRes.t, from John P. Linderman 488 - 11414: prototype from Time::HiRes::sleep(), from Abhijit Menon-Sen 489 - 11409: Time::HiRes qw(sleep) failed, from Abhijit Menon-Sen 490 - 11270: dynix/ptx 4.5.2 hints fix, from Peter Prymmer 491 - 11032: VAX VMS s/div/lib\$ediv/ fix, from Peter Prymmer 492 - 11011: VAX VMS s/qdiv/div/ fix, from Peter Prymmer 493 - 10953: SCO OpenServer 5.0.5 requires an explicit -lc for usleep(), 494 from Jonathan Stowe 495 - 10942: MPE/IX test tweaks, from Mark Bixby 496 - 10784: unnecessary pod2man calls, from Andy Dougherty 497 - 10354: ext/ + -Wall, from Doug MacEachern 498 - 10320: fix the BOOT section to call myU2time correctly 499 - 10317: correct casting for AIX< from H. Merijn Brand 500 - 10119: document that the core time() may be rounding, not truncating 501 - 10118: test fix, from John Peacock 502 - 9988: long =item, from Robin Barker 503 - 9714: correct test output 504 - 9708: test also the scalar aspect of getitimer() 505 - 9705: Add interval timers (setitimer, getitimer) 506 - 9692: do not require at least 5.005 using XS 507 508 The following changes were made on top of the changes 509 made for Time::HiRes during the Perl 5.7 development 510 cycle that culminated in the release of Perl 5.8.0. 511 512 - add "require 5.005" to the Makefile.PL 513 - remove the REVISION section (CVS log) from HiRes.pm 514 - add jhi's copyright alongside Douglas' 515 - move HiRes.pm to lib/Time/ 516 - move HiRes.t to t/ 517 - modify HiRes.t to use $ENV{PERL_CORE} 518 - modify the original Time::HiRes version 1.20 Makefile.PL 519 to work both with Perl 5.8.0 and the new code with pre-5.8.0 520 Perls (tried with 5.6.1) 521 - tiny tweaks and updates in README and TODO 522 - bump the VERSION to 1.29 523 5241.20 Wed Feb 24 21:30 1999 525 - make our usleep and ualarm substitutes into hrt_usleep 526 and hrt_ualarm. This helps static links of Perl with other 527 packages that also have usleep, etc. From 528 Ilya Zakharevich <ilya@math.ohio-state.edu> 529 - add C API stuff. From Joshua Pritikin 530 <joshua.pritikin@db.com> 531 - VMS Makefile.PL fun. From pvhp@forte.com (Peter Prymmer) 532 - hopefully correct "-lc" fix for SCO. 533 - add PPD stuff 534 535 1.20 adds a platform neutral set of C accessible routines if you are 536 running 5.005+. All other changes are packaging changes and build 537 fixes(?) for statically linked Perl, SCO, and VMS. 538 5391.19 Tue Sep 29 22:30 1998 540 - put VMS gettimeofday() in. Patch is from Sebastian Bazley 541 <seb@stian.demon.co.uk> 542 - change GIMME_V to GIMME to help people with older versions of 543 Perl. 544 - fix Win32 version of gettimeofday(). It didn't affect anything, 545 but it confuses people reading the code when the return value 546 is backwards (0 is success). 547 - fix Makefile.PL (more) so that detection of gettimeofday is 548 more correct. 549 550 1.19 has better VMS support. 551 5521.18 Mon Jul 6 22:40 1998 553 - add usleep() for Win32. 554 - fix Makefile.PL to fix reported HP/UX feature where unresolved 555 externals still cause an executable to be generated (though no 556 x bit set). Thanks to David Kozinn for report and explanation. 557 Problems with the fix are mine :) 558 559 1.18 has limited Win32 support (no ualarm). Added usleep for Win32. 560 Probably buggy. I'm sure I'll hear. 561 5621.17 Wed Jul 1 20:10 1998 563 - fix setitimer calls so microseconds is not more than 1000000. 564 Hp/UX 9 doesn't like that. Provided by Roland B Robert, PhD. 565 - make Win32. We only get gettimeofday (the select hack doesn't 566 seem to work on my Win95 system). 567 - fix test 4 on 01test.t. add test to see if time() and 568 Time::HiRes::time() are close. 569 5701.16 Wed Nov 12 21:05 1997 571 - add missing EXTEND in new gettimeofday scalar code. 572 573 1.16+ should be closer to building out of the box on Linux. Thanks 574 to Gisle Aas for patches, and the ualarm equivalent using setitimer. 575 576 If your underlying operating system doesn't implement ualarm(), then 577 a fake using setitimer() will be made. If the OS is missing usleep(), 578 a fake one using select() will be made. If a fake can't be made for 579 either ualarm() or usleep(), then the corresponding Perl function will 580 not be available. If the OS is missing gettimeofday(), you will get 581 unresolved externals, either at link- or run-time. 582 583 This is an improvement; the package used to not even build if 584 you were missing any of these bits. Roderick Schertler 585 586 <roderick@argon.org> did all the conditional compilation stuff, 587 look at HiRes.pm and the test suites; it's good educational reading. 588 5891.15 Mon Nov 10 21:30 1997 590 - HiRes.pm: update pod. Provided by Gisle Aas. 591 - HiRes.xs: if gettimeofday() called in scalar context, do 592 something more useful than before. Provided by Gisle Aas. 593 - README: tell of xsubpp '-nolinenumber' woes. thanks to 594 Edward Henigin <ed@texas.net> for pointing out the problem. 595 5961.14 Wed Nov 5 9:40 1997 597 - Makefile.PL: look for setitimer 598 - HiRes.xs: if missing ualarm, but we have setitimer, make up 599 our own setitimer. These were provided by Gisle Aas. 600 6011.13 Tue Nov 4 23:30 1997 602 - Makefile.PL: fix autodetect mechanism to do try linking in addition 603 to just compiling; should fix Linux build problem. Fix was provided 604 by Gisle Aas. 605 6061.12 Sun Oct 12 12:00:00 1997 607 - Makefile.PL: set XSOPT to '-nolinenumbers' to work around xsubpp bug; 608 you may need to comment this back out if you have an older xsubpp. 609 - HiRes.xs: set PROTOTYPES: DISABLE 610 6111.11 Fri Sep 05 16:00:00 1997 612 - Makefile.PL: 613 Had some line commented out that shouldn't have been (testing 614 remnants) 615 - README: 616 Previous version was corrupted. 617 6181.10 Thu May 22 20:20:00 1997 619 - HiRes.xs, HiRes.pm, t/*: 620 - only compile what we have OS support for (or can 621 fake with select()) 622 - only test what we compiled 623 - gross improvement to the test suite 624 - fix EXPORT_FAIL. 625 This work was all done by Roderick Schertler 626 <roderick@argon.org>. If you run Linux or 627 one of the other ualarm-less platforms, and you like this 628 module, let Roderick know; without him, it still wouldn't 629 be working on those boxes... 630 - Makefile.PL: figure out what routines the OS has and 631 only build what we need. These bits were written by Jarkko 632 Hietaniemi <jhi@iki.fi>. Again, gratitude is due... 633 6341.02 Mon Dec 30 08:00:00 1996 635 - HiRes.pm: update documentation to say what to do when missing 636 ualarm() and friends. 637 - README: update to warn that ualarm() and friends need to exist 638 6391.01 Fri Oct 17 08:00:00 1996 640 - Makefile.PL: make XSPROTOARGS => '-noprototyopes' 641 - HiRes.pm: put blank line between __END__ and =head1 so that 642 pod2man works. 643 6441.00 Tue Sep 03 13:00:00 1996 645 - original version; created by h2xs 1.16 646