source: rtems/c/src/libchip/shmdr/getpkt.c @ dd9cc9f7

4.104.11
Last change on this file since dd9cc9f7 was 4e89a12, checked in by Joel Sherrill <joel.sherrill@…>, on Sep 4, 2003 at 6:56:25 PM

2003-09-04 Joel Sherrill <joel@…>

  • addlq.c, cnvpkt.c, dump.c, fatal.c, getlq.c, getpkt.c, init.c, initlq.c, intr.c, mpci.h, mpisr.c, poll.c, receive.c, retpkt.c, send.c, setckvec.c, shm_driver.h: URL for license changed.
  • Property mode set to 100644
File size: 873 bytes
Line 
1/*  Shm_Get_packet
2 *
3 *  This routine is the shared memory locked queue MPCI driver
4 *  routine used to obtain an empty message packet.
5 *
6 *  Input parameters:
7 *    packet             - address of pointer to packet
8 *
9 *  Output parameters:
10 *    *(cpb->get_packet) - address of allocated packet
11 *
12 *  COPYRIGHT (c) 1989-1999.
13 *  On-Line Applications Research Corporation (OAR).
14 *
15 *  The license and distribution terms for this file may be
16 *  found in the file LICENSE in this distribution or at
17 *  http://www.rtems.com/license/LICENSE.
18 *
19 *  $Id$
20 */
21
22#include <rtems.h>
23#include "shm_driver.h"
24
25rtems_mpci_entry Shm_Get_packet(
26  rtems_packet_prefix **packet
27)
28{
29  Shm_Envelope_control *ecb;
30
31  ecb = Shm_Allocate_envelope();
32  if ( !ecb )
33    rtems_fatal_error_occurred ( SHM_NO_FREE_PKTS );
34  *packet = Shm_Envelope_control_to_packet_prefix_pointer( ecb );
35}
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