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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.gz
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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