diff options
Diffstat (limited to 'bsps/shared/shmdr/shmdr-getpkt.c')
-rw-r--r-- | bsps/shared/shmdr/shmdr-getpkt.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/bsps/shared/shmdr/shmdr-getpkt.c b/bsps/shared/shmdr/shmdr-getpkt.c new file mode 100644 index 0000000000..454a551597 --- /dev/null +++ b/bsps/shared/shmdr/shmdr-getpkt.c @@ -0,0 +1,33 @@ +/* Shm_Get_packet + * + * This routine is the shared memory locked queue MPCI driver + * routine used to obtain an empty message packet. + * + * Input parameters: + * packet - address of pointer to packet + * + * Output parameters: + * *(cpb->get_packet) - address of allocated packet + * + * COPYRIGHT (c) 1989-1999. + * 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. + */ + +#include <rtems.h> +#include "shm_driver.h" + +rtems_mpci_entry Shm_Get_packet( + rtems_packet_prefix **packet +) +{ + Shm_Envelope_control *ecb; + + ecb = Shm_Allocate_envelope(); + if ( !ecb ) + rtems_fatal_error_occurred ( SHM_NO_FREE_PKTS ); + *packet = Shm_Envelope_control_to_packet_prefix_pointer( ecb ); +} |