diff options
author | Jennifer Averett <jennifer.averett@oarcorp.com> | 2014-02-06 12:59:08 -0600 |
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committer | Jennifer Averett <jennifer.averett@oarcorp.com> | 2014-03-07 09:11:32 -0600 |
commit | 6e6adafaaa04583a2bbcdd2c43e24e52df4123e5 (patch) | |
tree | eba2b75b8a6c91c7a2e772f6581fde8fe38202e6 /cpukit | |
parent | posix: Add support method to compare two pthread attribute structures. (diff) | |
download | rtems-6e6adafaaa04583a2bbcdd2c43e24e52df4123e5.tar.bz2 |
posix: Add pthread_attr_t methods to get/set affinity.
This patch adds the following methods:
+ pthread_attr_get_affinity_np
+ pthread_attr_set_affinity_np
Diffstat (limited to 'cpukit')
-rw-r--r-- | cpukit/posix/Makefile.am | 6 | ||||
-rw-r--r-- | cpukit/posix/src/pthreadattrgetaffinitynp.c | 48 | ||||
-rw-r--r-- | cpukit/posix/src/pthreadattrsetaffinitynp.c | 54 |
3 files changed, 108 insertions, 0 deletions
diff --git a/cpukit/posix/Makefile.am b/cpukit/posix/Makefile.am index 45562daedc..13f698c876 100644 --- a/cpukit/posix/Makefile.am +++ b/cpukit/posix/Makefile.am @@ -142,6 +142,12 @@ libposix_a_SOURCES += src/pthreadatfork.c src/pthreadattrdestroy.c \ ## RTEMS specific support methods libposix_a_SOURCES += src/pthreadattrcompare.c +if HAS_SMP +## PTHREAD_AFFINITY_C_FILES +libposix_a_SOURCES += src/pthreadattrsetaffinitynp.c \ + src/pthreadattrgetaffinitynp.c +endif + ## PSIGNAL_C_FILES libposix_a_SOURCES += src/psignal.c src/alarm.c src/kill.c src/killinfo.c \ src/kill_r.c src/pause.c src/psignalclearprocesssignals.c \ diff --git a/cpukit/posix/src/pthreadattrgetaffinitynp.c b/cpukit/posix/src/pthreadattrgetaffinitynp.c new file mode 100644 index 0000000000..e7693fa7b7 --- /dev/null +++ b/cpukit/posix/src/pthreadattrgetaffinitynp.c @@ -0,0 +1,48 @@ +/** + * @file + * + * @brief Pthread Attribute 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_ATTR_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_attr_getaffinity_np( + const pthread_attr_t *attr, + size_t cpusetsize, + cpu_set_t *cpuset +) +{ + if ( !cpuset ) + return EFAULT; + if ( !attr ) + return EFAULT; + + if ( cpusetsize != attr->affinitysetsize) + return EINVAL; + + CPU_COPY( cpuset, attr->affinityset ); + return 0; +} +#endif diff --git a/cpukit/posix/src/pthreadattrsetaffinitynp.c b/cpukit/posix/src/pthreadattrsetaffinitynp.c new file mode 100644 index 0000000000..6a60aa2128 --- /dev/null +++ b/cpukit/posix/src/pthreadattrsetaffinitynp.c @@ -0,0 +1,54 @@ +#if HAVE_CONFIG_H +#include "config.h" +#endif + +/** + * @file + * + * @brief Pthread Attribute Set 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_DECL_PTHREAD_ATTR_SETAFFINITY_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> +#include <rtems/score/cpusetimpl.h> + +int pthread_attr_setaffinity_np( + pthread_attr_t *attr, + size_t cpusetsize, + const cpu_set_t *cpuset +) +{ + int error; + + if ( !cpuset ) + return EFAULT; + if ( !attr ) + return EFAULT; + + error = _CPU_set_Is_valid( cpuset, cpusetsize ); + if ( error != 0 ) + return EINVAL; + + CPU_COPY( attr->affinityset, cpuset ); + + return 0; +} + +#endif |