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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-05-11 17:39:37 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-05-11 17:39:37 +0000 |
commit | ac7d5ef06a6d6e8d84abbd1f0b82162725f98326 (patch) | |
tree | 9304cf759a73f2a1c6fd3191948f00e870af3787 /c/src/libchip/shmdr/getpkt.c | |
download | rtems-ac7d5ef06a6d6e8d84abbd1f0b82162725f98326.tar.bz2 |
Initial revision
Diffstat (limited to 'c/src/libchip/shmdr/getpkt.c')
-rw-r--r-- | c/src/libchip/shmdr/getpkt.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/c/src/libchip/shmdr/getpkt.c b/c/src/libchip/shmdr/getpkt.c new file mode 100644 index 0000000000..c80b3ed282 --- /dev/null +++ b/c/src/libchip/shmdr/getpkt.c @@ -0,0 +1,36 @@ +/* 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, 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_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 ); +} |