FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F5.2.1_cvs 2004-02-23T15:32:56Z 2004-02-23T15:32:56Z cvs2svn cvs2svn@FreeBSD.org 2004-02-23T15:32:56Z urn:sha1:84a7b99b4e02a260bf7ff9b540032f4cb7bc612a 'RELENG_5_2_1_RELEASE'. This commit was manufactured to restore the state of the 5.2.1-RELEASE image. Releases prior to 5.3-RELEASE are omitting the secure/ and crypto/ subdirs. 2003-11-04T20:04:45Z Daniel Eischen deischen@FreeBSD.org 2003-11-04T20:04:45Z urn:sha1:4c1123c1c023bff3a413efecc581d1508a7d211c Aside from the POSIX requirements for pthread_atfork(), when fork()ing, take the malloc lock to keep malloc state consistent in the child. Reviewed by: davidxu 2003-09-09T06:57:51Z David Xu davidxu@FreeBSD.org 2003-09-09T06:57:51Z urn:sha1:c095b4a999b73a545fcaa0fa7a45868d89a9b5b0 Reviewed by: deischen 2003-09-06T00:07:52Z David Xu davidxu@FreeBSD.org 2003-09-06T00:07:52Z urn:sha1:407c3de5227834f5e4d1c12e0801566d81aa67cb pthread_rwlock_timedrwlock. 2003-09-04T14:06:43Z David Xu davidxu@FreeBSD.org 2003-09-04T14:06:43Z urn:sha1:2ab83179b5b31c53a1b76ff437e1d075d64a3a95 pthread_mutex_timedlock(). Reviewed by: deischen 2003-07-19T05:25:49Z David Xu davidxu@FreeBSD.org 2003-07-19T05:25:49Z urn:sha1:1aa2ee9714c457849a46d08d080969399c002dc3 send signal to current thread. Reviewed by: deischen 2003-06-28T09:55:02Z David Xu davidxu@FreeBSD.org 2003-06-28T09:55:02Z urn:sha1:a772047bc659cf0fd4f41fb57895b1557ccb60c3 signals were changed in kernel, it will retrieve the pending set and try to find a thread to dispatch the signal. The dispatching process can be rolled back if the signal is no longer in kernel. o Create two functions _thr_signal_init() and _thr_signal_deinit(), all signal action settings are retrieved from kernel when threading mode is turned on, after a fork(), child process will reset them to user settings by calling _thr_signal_deinit(). when threading mode is not turned on, all signal operations are direct past to kernel. o When a thread generated a synchoronous signals and its context returned from completed list, UTS will retrieve the signal from its mailbox and try to deliver the signal to thread. o Context signal mask is now only used when delivering signals, thread's current signal mask is always the one in pthread structure. o Remove have_signals field in pthread structure, replace it with psf_valid in pthread_signal_frame. when psf_valid is true, in context switch time, thread will backout itself from some mutex/condition internal queues, then begin to process signals. when a thread is not at blocked state and running, check_pending indicates there are signals for the thread, after preempted and then resumed time, UTS will try to deliver signals to the thread. o At signal delivering time, not only pending signals in thread will be scanned, process's pending signals will be scanned too. o Change sigwait code a bit, remove field sigwait in pthread_wait_data, replace it with oldsigmask in pthread structure, when a thread calls sigwait(), its current signal mask is backuped to oldsigmask, and waitset is copied to its signal mask and when the thread gets a signal in the waitset range, its current signal mask is restored from oldsigmask, these are done in atomic fashion. o Two additional POSIX APIs are implemented, sigwaitinfo() and sigtimedwait(). o Signal code locking is better than previous, there is fewer race conditions. o Temporary disable most of code in _kse_single_thread as it is not safe after fork(). 2003-05-30T00:21:52Z Alexander Kabaev kan@FreeBSD.org 2003-05-30T00:21:52Z urn:sha1:84d55c7fad83f4fa1330cc8c2206da8ebd0b300d path, making them suitable for direct use by the dynamic loader. Register libpthread-specific locking API with rtld on startup. This still has some rough edges with signals which should be addresses later. Approved by: re (scottl)