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time.c (time_timespec): fix tv_nsec overflow

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test/ruby/test_float.rb (test_sleep_with_Float) causes tv_nsec
to hit 1000000000 exactly.  This bug is currently hidden from
our test by the platform-dependent native_cond_timeout
functions, but a future native_cond_timedwait implementation may
prefer relative timeouts to match ConditionVariable#wait
semantics more closely.
[Bug #10144]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47196 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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normal 2014-08-16 01:27:19 +00:00
parent e51a55903e
commit ed2e8b2e70
2 changed files with 9 additions and 0 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Sat Aug 16 10:20:17 2014 Eric Wong <e@80x24.org>
* time.c (time_timespec): fix tv_nsec overflow
[Bug #10144]
Fri Aug 15 20:34:17 2014 Masaki Suketa <masaki.suketa@nifty.ne.jp>
* ext/win32ole/win32ole.c: seperate WIN32OLE_EVENT src from

4
time.c
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@ -2354,6 +2354,10 @@ time_timespec(VALUE num, int interval)
d = modf(RFLOAT_VALUE(num), &f);
if (d >= 0) {
t.tv_nsec = (int)(d*1e9+0.5);
if (t.tv_nsec >= 1000000000) {
t.tv_nsec -= 1000000000;
f += 1;
}
}
else if ((t.tv_nsec = (int)(-d*1e9+0.5)) > 0) {
t.tv_nsec = 1000000000 - t.tv_nsec;