4.104.114.84.95
Last change
on this file since f42b726 was
f42b726,
checked in by Joel Sherrill <joel.sherrill@…>, on 01/24/01 at 14:17:28
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2001-01-24 Ralf Corsepius <corsepiu@…>
- configure.in: Add src/config.h
- src/Makefile.am: Add INCLUDES += -I. to pickup config.h
- src/.cvsignore: Add config.h and stamp-h
- src/*.c: Add config.h support.
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-
Property mode set to
100644
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File size:
1.4 KB
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1 | /* |
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2 | * ITRON 3.0 Mailbox Manager |
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3 | * |
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4 | * COPYRIGHT (c) 1989-1999. |
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5 | * On-Line Applications Research Corporation (OAR). |
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6 | * |
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7 | * The license and distribution terms for this file may be |
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8 | * found in the file LICENSE in this distribution or at |
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9 | * http://www.OARcorp.com/rtems/license.html. |
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10 | * |
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11 | * $Id$ |
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12 | */ |
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13 | |
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14 | #if HAVE_CONFIG_H |
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15 | #include "config.h" |
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16 | #endif |
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17 | |
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18 | #include <itron.h> |
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19 | |
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20 | #include <rtems/itron/mbox.h> |
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21 | #include <rtems/itron/task.h> |
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22 | |
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23 | /* |
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24 | * ref_mbx - Reference Mailbox Status |
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25 | */ |
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26 | |
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27 | ER ref_mbx( |
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28 | T_RMBX *pk_rmbx, |
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29 | ID mbxid |
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30 | ) |
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31 | { |
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32 | register ITRON_Mailbox_Control *the_mailbox; |
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33 | Objects_Locations location; |
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34 | Chain_Control *pending; |
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35 | |
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36 | if ( !pk_rmbx ) |
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37 | return E_PAR; |
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38 | |
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39 | the_mailbox = _ITRON_Mailbox_Get( mbxid, &location ); |
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40 | switch ( location ) { |
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41 | case OBJECTS_REMOTE: |
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42 | case OBJECTS_ERROR: |
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43 | return _ITRON_Mailbox_Clarify_get_id_error( mbxid ); |
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44 | |
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45 | case OBJECTS_LOCAL: |
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46 | |
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47 | pending = &the_mailbox->message_queue.Pending_messages; |
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48 | if ( _Chain_Is_empty( pending ) ) |
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49 | pk_rmbx->pk_msg = NULL; |
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50 | else |
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51 | pk_rmbx->pk_msg = (T_MSG *) pending->first; |
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52 | |
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53 | /* |
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54 | * Fill in whether or not there is a waiting task |
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55 | */ |
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56 | |
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57 | if ( !_Thread_queue_First( &the_mailbox->message_queue.Wait_queue ) ) |
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58 | pk_rmbx->wtsk = FALSE; |
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59 | else |
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60 | pk_rmbx->wtsk = TRUE; |
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61 | |
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62 | break; |
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63 | } |
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64 | _ITRON_return_errorno( E_OK ); |
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65 | } |
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66 | |
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