aboutsummaryrefslogtreecommitdiff
path: root/nptl/pthread_join.c
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2003-02-14 18:33:54 +0000
committerUlrich Drepper <drepper@redhat.com>2003-02-14 18:33:54 +0000
commite320ef46a7283517aeba1decc20ffb38ed131281 (patch)
treebe9af48c1823694fde8d21ef1de61918b8205126 /nptl/pthread_join.c
parent700bf7af9f98174f33ac177332bcbcd644055474 (diff)
downloadglibc-e320ef46a7283517aeba1decc20ffb38ed131281.tar
glibc-e320ef46a7283517aeba1decc20ffb38ed131281.tar.gz
glibc-e320ef46a7283517aeba1decc20ffb38ed131281.tar.bz2
glibc-e320ef46a7283517aeba1decc20ffb38ed131281.zip
Update.
* descr.h: Define CANCELING_BIT and CANCELING_BITMASK. Introduce after CANCELTYPE_BIT, move the other bits up. Update CANCEL_RESTMASK. * init.c (sigcancel_handler): Also set CANCELING_BITMASK bit in newval. * pthread_cancel.c (pthread_cancel): Likewise. Also set CANCELING_BIT if asynchronous canceling is enabled. * pthread_join.c (pthread_join): When recognizing circular joins, take into account the other thread might be already canceled. * Makefile (tests): Add tst-join5. * tst-join5.c: New file.
Diffstat (limited to 'nptl/pthread_join.c')
-rw-r--r--nptl/pthread_join.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/nptl/pthread_join.c b/nptl/pthread_join.c
index 4edbced2c1..5954af778d 100644
--- a/nptl/pthread_join.c
+++ b/nptl/pthread_join.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@@ -50,7 +50,11 @@ pthread_join (threadid, thread_return)
return EINVAL;
self = THREAD_SELF;
- if (pd == self || self->joinid == pd)
+ if (pd == self
+ || (self->joinid == pd
+ && (pd->cancelhandling
+ & (CANCELING_BITMASK | CANCELED_BITMASK | EXITING_BITMASK
+ | TERMINATED_BITMASK)) == 0))
/* This is a deadlock situation. The threads are waiting for each
other to finish. Note that this is a "may" error. To be 100%
sure we catch this error we would have to lock the data