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28 commits

Author SHA1 Message Date
Nikolaj Bjorner
5844964d95 rename temporary macro 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2020-05-18 17:17:51 -07:00
Nuno Lopes
f3cd7d646d further simplifications to scoped_timer 2019-02-21 10:42:42 +00:00
Nuno Lopes
73f6806371 rewrite scoped_timer in C++11 way 
the code is much smaller and reused across platforms
I see a small speedup on linux as well
 2019-02-04 17:42:27 +00:00
Bruce Mitchener
b83d6d77c9 Use nullptr rather than 0/NULL. 2018-11-28 14:57:01 +07:00
Bruce Mitchener
a76397d3b8 Refer to macOS rather than Mac OS / OSX. 2018-10-02 17:38:09 +07:00
Nikolaj Bjorner
d74978c277 fix #1762, #1764, #1768 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-07-26 20:29:26 +01:00
Nikolaj Bjorner
b5f067bec5 fix #1592 #1587 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2018-04-25 11:18:24 +02:00
Pierre Pronchery
5f7bd993de Add support for NetBSD 
Originally from David Holland <dholland@NetBSD.org>.
 2018-03-13 21:59:35 +01:00
Bruce Mitchener
76eb7b9ede Use nullptr. 2018-02-12 14:05:55 +07:00
Nikolaj Bjorner
bc8ae21ebe missing parameters for OSX/Linus 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-18 15:14:47 -07:00
Nikolaj Bjorner
7a977f0106 ensure that timeouts are distinguished from other cancel events #848 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-08-18 14:54:54 -07:00
Nikolaj Bjorner
b19f94ae5b make include paths uniformly use path relative to src. #534 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2017-07-31 13:24:11 -07:00
Dan Liew
b5aa6d5eb5 Fix issue with bd1f07f864 pointed out by 
@nunolopes .

If `pthread_cond_signal()` is called while `m_mutex` is held then the
timing thread might be woken up twice due to waking up from
`pthread_cond_timeout()` (due to being signaled) but then being forced
to sleep again because the thread calling `~imp()` is still holding
`m_mutex` (which the timing thread needs to acquire).
 2016-12-19 22:36:42 +00:00
Dan Liew
bd1f07f864 Fix implementation of scoped_timer under Linux where it was 
incorrectly assumed that `pthread_cond_timedwait()` would exit
due to a condition variable being signaled or a timeout occuring.

According to the documentation `pthread_cond_timedwait()` might
spuriously wake so we introduce a new variable `m_signal_sent` (that is
guarded by an existing mutex) that is used as the variable to check that
the thread wake was not spurious.

This is intended to partially fix #839 .
 2016-12-11 23:12:36 +00:00
Nikolaj Bjorner
e9db934f1a improving perf of mutex finding, revert semantics of 0 timeout to no-timeout. Issue #791 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2016-11-17 04:26:17 +02:00
Nuno Lopes
4b0f2cae0d fix compiler warning in scoped_timer.cpp on linux 
2 secs in nanosec representation still fit in 31 bits, so no need for ULL

Signed-off-by: Nuno Lopes <nlopes@microsoft.com>
 2015-12-08 17:03:18 +00:00
Nuno Lopes
d9bafc3fba rewrite scoped_timer for linux 
The previous version was racy and could lead to crashes.
The timer could be deleted before the callback was called, making it execute on already freed memory

This new version is similar to Mac's. It spawns its own thread and uses pthread_cond_wait.
Care is taken for small timeouts to avoid races in the thread creation and timer destruction.

Signed-off-by: Nuno Lopes <nlopes@microsoft.com>
 2015-11-22 11:40:52 +00:00
Nikolaj Bjorner
fc592fc856 fix for #291. The root issue is that the set of antecedents is recycled as a fixed object between routines. Antecedents that were already allocated for a Gomory cut got reset by the internalizer. This causes unsound bounds axioms to be created 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2015-11-05 15:08:42 -08:00
Christoph M. Wintersteiger
f3441c6a9b tabs and indentation 2015-09-17 13:25:22 +01:00
Nikolaj Bjorner
c6683fd6fa to fix that timeout of 0 has different interpretations across platforms 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
 2014-10-05 12:27:57 -07:00
Christoph M. Wintersteiger
581bbb58fb typo 
Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
 2014-05-02 18:04:32 +01:00
Christoph M. Wintersteiger
8150bd5617 OSX timeout handling bugfix 2014-05-02 17:58:17 +01:00
Leonardo de Moura
9674f511b3 Fix scoped_timer for Linux. Nested timers were misbehaving, and it was not possible to create timers in more than one thread 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2012-12-17 20:46:04 -08:00
Leonardo de Moura
8d45de02c5 Fixed timer bug on freebsd 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2012-12-07 06:07:57 -08:00
Leonardo de Moura
5e4d1151eb fixing clang compilation problems 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2012-12-05 15:20:16 -08:00
Leonardo de Moura
b169963909 fixed FreeBSD support 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2012-11-18 00:09:45 -08:00
Leonardo de Moura
1a3eb3a2ed Added support for FreeBSD 2012-11-18 00:05:32 -08:00
Leonardo de Moura
2c464d413d Reorganizing source code. Created util dir 
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
 2012-10-20 10:19:38 -07:00
Renamed from lib/scoped_timer.cpp (Browse further)