[rtems commit] posix/mman: update atime on shared memory read call
Gedare Bloom
gedare at rtems.org
Fri May 5 15:26:46 UTC 2017
Module: rtems
Branch: master
Commit: 889eb76731ccf087917f3f520aef8471568f9bfa
Changeset: http://git.rtems.org/rtems/commit/?id=889eb76731ccf087917f3f520aef8471568f9bfa
Author: Gedare Bloom <gedare at rtems.org>
Date: Wed Mar 15 14:29:19 2017 -0400
posix/mman: update atime on shared memory read call
Update #2859.
---
cpukit/posix/include/rtems/posix/shmimpl.h | 9 +++++++++
cpukit/posix/src/shmopen.c | 1 +
2 files changed, 10 insertions(+)
diff --git a/cpukit/posix/include/rtems/posix/shmimpl.h b/cpukit/posix/include/rtems/posix/shmimpl.h
index 207f50f..ff3299e 100644
--- a/cpukit/posix/include/rtems/posix/shmimpl.h
+++ b/cpukit/posix/include/rtems/posix/shmimpl.h
@@ -84,6 +84,15 @@ RTEMS_INLINE_ROUTINE POSIX_Shm_Control *_POSIX_Shm_Get_by_name(
);
}
+RTEMS_INLINE_ROUTINE void _POSIX_Shm_Update_atime(
+ POSIX_Shm_Control *shm
+)
+{
+ struct timeval now;
+ gettimeofday( &now, 0 );
+ shm->atime = now.tv_sec;
+}
+
RTEMS_INLINE_ROUTINE void _POSIX_Shm_Update_mtime_ctime(
POSIX_Shm_Control *shm
)
diff --git a/cpukit/posix/src/shmopen.c b/cpukit/posix/src/shmopen.c
index 3f3789f..4c86535 100644
--- a/cpukit/posix/src/shmopen.c
+++ b/cpukit/posix/src/shmopen.c
@@ -66,6 +66,7 @@ static ssize_t shm_read( rtems_libio_t *iop, void *buffer, size_t count )
buffer,
count
);
+ _POSIX_Shm_Update_atime( shm );
_POSIX_Shm_Release( shm, &queue_context );
return bytes_read;
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