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Code Issues Releases Activity

After forking and initializing the library to single-threaded

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mode (where the forked thread is the one and only thread and
is marked as system scope), set the system scope flag before
initializing the signal mask.  This prevents trying to use
internal locks that haven't yet been initialized.

Reported by:	Dan Nelson <dnelson at allantgroup.com>
Reviewed by:	davidxu
This commit is contained in:
Daniel Eischen 2004-04-08 23:16:21 +00:00
parent 5b8ef52df0
commit b8bbeeda02
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=128041
2 changed files with 6 additions and 4 deletions
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5
lib/libkse/thread/thr_kern.c
View File

@ -347,13 +347,14 @@ _kse_single_thread(struct pthread *curthread)
_thr_signal_deinit();
}
__isthreaded = 0;
curthread->kse->k_kcb->kcb_kmbx.km_curthread = NULL;
curthread->attr.flags |= PTHREAD_SCOPE_SYSTEM;
/*
* Restore signal mask early, so any memory problems could
* dump core.
*/
sigprocmask(SIG_SETMASK, &curthread->sigmask, NULL);
curthread->kse->k_kcb->kcb_kmbx.km_curthread = NULL;
curthread->attr.flags |= PTHREAD_SCOPE_SYSTEM;
_thr_active_threads = 1;
#endif
}

5
lib/libpthread/thread/thr_kern.c
View File

@ -347,13 +347,14 @@ _kse_single_thread(struct pthread *curthread)
_thr_signal_deinit();
}
__isthreaded = 0;
curthread->kse->k_kcb->kcb_kmbx.km_curthread = NULL;
curthread->attr.flags |= PTHREAD_SCOPE_SYSTEM;
/*
* Restore signal mask early, so any memory problems could
* dump core.
*/
sigprocmask(SIG_SETMASK, &curthread->sigmask, NULL);
curthread->kse->k_kcb->kcb_kmbx.km_curthread = NULL;
curthread->attr.flags |= PTHREAD_SCOPE_SYSTEM;
_thr_active_threads = 1;
#endif
}