diff options
Diffstat (limited to 'nptl/pthread_mutex_init.c')
| -rw-r--r-- | nptl/pthread_mutex_init.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/nptl/pthread_mutex_init.c b/nptl/pthread_mutex_init.c index 074941daf3..17d1c99575 100644 --- a/nptl/pthread_mutex_init.c +++ b/nptl/pthread_mutex_init.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc. +/* Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -18,6 +18,7 @@ 02111-1307 USA. */ #include <assert.h> +#include <errno.h> #include <string.h> #include "pthreadP.h" @@ -40,17 +41,26 @@ __pthread_mutex_init (mutex, mutexattr) imutexattr = (const struct pthread_mutexattr *) mutexattr ?: &default_attr; + /* Sanity checks. */ + // XXX For now we cannot implement robust mutexes if they are shared. + if ((imutexattr->mutexkind & PTHREAD_MUTEXATTR_FLAG_ROBUST) != 0 + && (imutexattr->mutexkind & PTHREAD_MUTEXATTR_FLAG_PSHARED) != 0) + return ENOTSUP; + /* Clear the whole variable. */ memset (mutex, '\0', __SIZEOF_PTHREAD_MUTEX_T); /* Copy the values from the attribute. */ - mutex->__data.__kind = imutexattr->mutexkind & ~0x80000000; + mutex->__data.__kind = imutexattr->mutexkind & ~PTHREAD_MUTEXATTR_FLAG_BITS; + if ((imutexattr->mutexkind & PTHREAD_MUTEXATTR_FLAG_ROBUST) != 0) + mutex->__data.__kind |= PTHREAD_MUTEX_ROBUST_PRIVATE_NP; /* Default values: mutex not used yet. */ // mutex->__count = 0; already done by memset // mutex->__owner = 0; already done by memset // mutex->__nusers = 0; already done by memset // mutex->__spins = 0; already done by memset + // mutex->__next = NULL; already done by memset return 0; } |