diff options
Diffstat (limited to 'libpthread/nptl/pthread_mutexattr_getpshared.c')
-rw-r--r-- | libpthread/nptl/pthread_mutexattr_getpshared.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/libpthread/nptl/pthread_mutexattr_getpshared.c b/libpthread/nptl/pthread_mutexattr_getpshared.c new file mode 100644 index 000000000..4bd4ea18d --- /dev/null +++ b/libpthread/nptl/pthread_mutexattr_getpshared.c @@ -0,0 +1,38 @@ +/* Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <pthreadP.h> + + +int +pthread_mutexattr_getpshared (attr, pshared) + const pthread_mutexattr_t *attr; + int *pshared; +{ + const struct pthread_mutexattr *iattr; + + iattr = (const struct pthread_mutexattr *) attr; + + /* We use bit 31 to signal whether the mutex is going to be + process-shared or not. */ + *pshared = ((iattr->mutexkind & 0x80000000) != 0 + ? PTHREAD_PROCESS_SHARED : PTHREAD_PROCESS_PRIVATE); + + return 0; +} |