1 files changed, 44 insertions, 0 deletions
diff --git a/c/src/libchip/shmdr/receive.c b/c/src/libchip/shmdr/receive.c
new file mode 100644
index 0000000000..e094a2df6b
--- /dev/null
+++ b/c/src/libchip/shmdr/receive.c
@@ -0,0 +1,44 @@
+/*  Shm_Receive_packet
+ *
+ *  This routine is the shared memory locked queue MPCI driver routine
+ *  used to obtain a packet containing a message from this node's
+ *  receive queue.
+ *
+ *  Input parameters:
+ *    packet         - address of a pointer to a packet
+ *
+ *  Output parameters:
+ *    *(rpb->packet) - pointer to packet
+ *                     NULL if no packet currently available
+ *
+ *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
+ *  On-Line Applications Research Corporation (OAR).
+ *  All rights assigned to U.S. Government, 1994.
+ *
+ *  This material may be reproduced by or for the U.S. Government pursuant
+ *  to the copyright license under the clause at DFARS 252.227-7013.  This
+ *  notice must appear in all copies of this file and its derivatives.
+ *
+ *  $Id$
+ */
+
+#include <rtems.h>
+#include "shm.h"
+
+rtems_mpci_entry Shm_Receive_packet(
+  rtems_packet_prefix **packet
+)
+{
+  Shm_Envelope_control *ecb;
+
+  ecb = Shm_Locked_queue_Get( Shm_Local_receive_queue );
+  if ( ecb ) {
+    *(packet) = Shm_Envelope_control_to_packet_prefix_pointer( ecb );
+    if ( ecb->Preamble.endian != Shm_Configuration->format )
+      Shm_Convert_packet( *packet );
+    Shm_Receive_message_count++;
+  } else {
+    *(packet) = NULL;
+    Shm_Null_message_count++;
+  }
+}