diff options
Diffstat (limited to 'nptl/sysdeps/pthread/pthread_cond_wait.c')
| -rw-r--r-- | nptl/sysdeps/pthread/pthread_cond_wait.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/nptl/sysdeps/pthread/pthread_cond_wait.c b/nptl/sysdeps/pthread/pthread_cond_wait.c index 86669458a0..f641a7e8b1 100644 --- a/nptl/sysdeps/pthread/pthread_cond_wait.c +++ b/nptl/sysdeps/pthread/pthread_cond_wait.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 2003, 2004, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003. @@ -50,8 +50,12 @@ __condvar_cleanup (void *arg) if (cbuffer->bc_seq == cbuffer->cond->__data.__broadcast_seq) { /* This thread is not waiting anymore. Adjust the sequence counters - appropriately. */ - ++cbuffer->cond->__data.__wakeup_seq; + appropriately. We do not increment WAKEUP_SEQ if this would + bump it over the value of TOTAL_SEQ> This can happen if a thread + was woken and then canceled. */ + if (cbuffer->cond->__data.__wakeup_seq + < cbuffer->cond->__data.__total_seq) + ++cbuffer->cond->__data.__wakeup_seq; ++cbuffer->cond->__data.__woken_seq; ++cbuffer->cond->__data.__futex; } |