posix/mman: add mmap support for shm objects

Update #2859.

1 files changed, 1 insertions, 22 deletions

diff --git a/cpukit/posix/src/shmopen.c b/cpukit/posix/src/shmopen.c
index bedde1513f..fa1027e30c 100644
--- a/cpukit/posix/src/shmopen.c
+++ b/cpukit/posix/src/shmopen.c
@@ -93,34 +93,13 @@ static int shm_ftruncate( rtems_libio_t *iop, off_t length )
 static int shm_close( rtems_libio_t *iop )
 {
   POSIX_Shm_Control *shm = iop_to_shm( iop );
-  Objects_Control       *obj;
-  ISR_lock_Context       lock_ctx;
   int err;
 
   err = 0;
 
-  _Objects_Allocator_lock();
-
-  --shm->reference_count;
-  if ( shm->reference_count == 0 ) {
-    /* TODO: need to make sure this counts mmaps too! */
-    if ( (*shm->shm_object.ops->object_delete)( &shm->shm_object ) != 0 ) {
-      err = EIO;
-    }
-    /* check if the object has been unlinked yet. */
-    obj = _Objects_Get( shm->Object.id, &lock_ctx, &_POSIX_Shm_Information );
-    if ( obj == NULL ) {
-      /* if it was unlinked, then it can be freed. */
-      _POSIX_Shm_Free( shm );
-    } else {
-      /* it will be freed when it is unlinked. */
-      _ISR_lock_ISR_enable( &lock_ctx );
-    }
-  }
+  POSIX_Shm_Attempt_delete(shm);
   iop->pathinfo.node_access = NULL;
 
-  _Objects_Allocator_unlock();
-
   if ( err != 0 ) {
     rtems_set_errno_and_return_minus_one( err );
   }