diff options
author | Jennifer Averett <jennifer.averett@oarcorp.com> | 2014-02-10 10:01:31 -0600 |
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committer | Jennifer Averett <jennifer.averett@oarcorp.com> | 2014-03-07 09:12:11 -0600 |
commit | dd0017c13510c51d979618c499d501417599abcc (patch) | |
tree | 1535d5f4cf77cd61d75e38167ed0d31df3d6dbd5 /cpukit/posix/src/pthreadgetaffinitynp.c | |
parent | posix: Add pthread_attr_t methods to get/set affinity. (diff) | |
download | rtems-dd0017c13510c51d979618c499d501417599abcc.tar.bz2 |
posix: Add dynamic pthread get and set affinity.
This patch adds the following methods:
+ pthread_get_affinity_np
+ pthread_set_affinity_np
Diffstat (limited to 'cpukit/posix/src/pthreadgetaffinitynp.c')
-rw-r--r-- | cpukit/posix/src/pthreadgetaffinitynp.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/cpukit/posix/src/pthreadgetaffinitynp.c b/cpukit/posix/src/pthreadgetaffinitynp.c new file mode 100644 index 0000000000..e92f800a1d --- /dev/null +++ b/cpukit/posix/src/pthreadgetaffinitynp.c @@ -0,0 +1,68 @@ +/** + * @file + * + * @brief Pthread Get Affinity + * @ingroup POSIXAPI + */ + +/* + * COPYRIGHT (c) 2014. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#if HAVE_DECL_PTHREAD_GETAFFINITY_NP + +#define _GNU_SOURCE +#include <pthread.h> +#include <errno.h> + +#include <rtems/posix/pthreadimpl.h> +#include <rtems/posix/priorityimpl.h> +#include <rtems/score/threadimpl.h> + +int pthread_getaffinity_np( + const pthread_t id, + size_t cpusetsize, + cpu_set_t *cpuset +) +{ + Objects_Locations location; + Thread_Control *the_thread; + int error; + + if ( !cpuset ) + return EFAULT; + + the_thread = _Thread_Get( id, &location ); + switch ( location ) { + + case OBJECTS_LOCAL: + error = 0; + if ( cpusetsize != the_thread->affinity.setsize ) + error = EINVAL; + else + CPU_COPY( cpuset, the_thread->affinity.set ); + + _Objects_Put( &the_thread->Object ); + return error; + break; + +#if defined(RTEMS_MULTIPROCESSING) + case OBJECTS_REMOTE: +#endif + case OBJECTS_ERROR: + break; + } + return ESRCH; +} + +#endif |