1 /** |
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2 * @file MsgQInternal.h |
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3 * Description: Internal Header file for MsgQLib |
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4 * Copyright (c) 2007 Nokia Corporation. |
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5 * All rights reserved. |
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6 * Redistribution and use in source and binary forms, with or without modification, |
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7 * are permitted provided that the following conditions are met: |
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8 * Redistributions of source code must retain the above copyright notice, this list |
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9 * of conditions and the following disclaimer.Redistributions in binary form must |
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10 * reproduce the above copyright notice, this list of conditions and the following |
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11 * disclaimer in the documentation and/or other materials provided with the distribution. |
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12 * Neither the name of the Nokia Corporation nor the names of its contributors may be used |
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13 * to endorse or promote products derived from this software without specific prior written |
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14 * permission. |
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15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY |
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16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
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18 * SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
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20 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
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23 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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24 */ |
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25 |
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26 #ifndef MSGQINTERNAL_H |
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27 #define MSGQINTERNAL_H |
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28 |
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29 #include <msgqlib.h> |
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30 #ifdef __cplusplus |
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31 extern "C" { |
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32 #endif |
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33 |
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34 /* data strucure used for maintaining message queues */ |
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35 |
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36 typedef struct MsgQInfo* MSGQ_INFO_PTR; |
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37 |
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38 typedef struct MsgQInfo { |
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39 MSGQ_INFO_PTR next; /* next entry in list */ |
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40 ULONG qName; /* queue name */ |
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41 int qId; /* queue id */ |
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42 int semId ; /* semaphore id */ |
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43 ULONG sendState; /* message can be sent */ |
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44 ULONG numMsgs; /* number of messages queued */ |
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45 ULONG maxNumMsgs; /* maximum number of messages queued */ |
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46 struct msqid_ds* slMqInfo_p; /* msg q info */ |
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47 }MSGQ_INFO; |
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48 |
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49 |
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50 /* Linked List used for maintaining list of all message queues created */ |
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51 |
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52 typedef struct MsgQInfoList* MSGQ_INFO_LIST_PTR; |
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53 |
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54 typedef struct MsgQInfoList { |
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55 MSGQ_INFO_LIST_PTR next; /* next entry in list */ |
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56 ULONG qName; /* queue name */ |
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57 } MSGQ_INFO_LIST; |
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58 |
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59 /* Forward Declaration of Internal Functions */ |
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60 int InstallMsqQTable(ULONG qName, int qId, int semId, int* err); |
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61 void AddToMsgQTable(ULONG qName); |
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62 int RemoveFromMsqQTable(ULONG qName, int* err); |
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63 void DeleteFromMsgQTable(ULONG qName); |
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64 MSGQ_INFO* MsgQTableLookup(ULONG qName); |
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65 |
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66 #ifdef __cplusplus |
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67 } |
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68 #endif |
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69 #endif /* MSGQINTERNAL_H */ |
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