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author | Siddhesh Poyarekar <siddhesh@redhat.com> | 2013-06-15 12:24:15 +0530 |
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committer | Siddhesh Poyarekar <siddhesh@redhat.com> | 2013-06-15 12:24:15 +0530 |
commit | 61dd6208fb1e59a423b6dfa712a3c896c34b2590 (patch) | |
tree | 3417035a17046120bfedeafe2e7db9e366380101 /nptl/pthread_getattr_default_np.c | |
parent | 601eb33debf0c7548f52ba72cec4b3f362105e39 (diff) | |
download | glibc-61dd6208fb1e59a423b6dfa712a3c896c34b2590.tar.gz glibc-61dd6208fb1e59a423b6dfa712a3c896c34b2590.tar.xz glibc-61dd6208fb1e59a423b6dfa712a3c896c34b2590.zip |
New API to set default thread attributes
This patch introduces two new convenience functions to set the default thread attributes used for creating threads. This allows a programmer to set the default thread attributes just once in a process and then run pthread_create without additional attributes.
Diffstat (limited to 'nptl/pthread_getattr_default_np.c')
-rw-r--r-- | nptl/pthread_getattr_default_np.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/nptl/pthread_getattr_default_np.c b/nptl/pthread_getattr_default_np.c new file mode 100644 index 0000000000..f3a6b47464 --- /dev/null +++ b/nptl/pthread_getattr_default_np.c @@ -0,0 +1,37 @@ +/* Get the default attributes used by pthread_create in the process. + Copyright (C) 2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <stdlib.h> +#include <pthreadP.h> +#include <assert.h> + +int +pthread_getattr_default_np (pthread_attr_t *out) +{ + struct pthread_attr *real_out; + + assert (sizeof (*out) >= sizeof (struct pthread_attr)); + real_out = (struct pthread_attr *) out; + + lll_lock (__default_pthread_attr_lock, LLL_PRIVATE); + *real_out = __default_pthread_attr; + lll_unlock (__default_pthread_attr_lock, LLL_PRIVATE); + + return 0; +} |