author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 15 Mar 2010 12:42:41 +0200 | |
branch | RCL_3 |
changeset 8 | 3e903093c1f8 |
parent 0 | d0f3a028347a |
permissions | -rw-r--r-- |
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/** |
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* @file MsgQLib.h |
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* Description: Header file for MsgQLib |
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* Copyright (c) 2007 Nokia Corporation. |
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* All rights reserved. |
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* Redistribution and use in source and binary forms, with or without modification, |
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* are permitted provided that the following conditions are met: |
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* Redistributions of source code must retain the above copyright notice, this list |
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* of conditions and the following disclaimer.Redistributions in binary form must |
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* reproduce the above copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials provided with the distribution. |
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* Neither the name of the Nokia Corporation nor the names of its contributors may be used |
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* to endorse or promote products derived from this software without specific prior written |
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* permission. |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY |
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
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* SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, |
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#ifndef __MSGQLIB_H__ |
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#define __MSGQLIB_H__ |
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#include <_ansi.h> |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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/* MsgQLib sizes */ |
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#define MAX_MSG_LEN 2048 |
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/* hash table parameters - table size must be a prime number */ |
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#define MSGQ_TBL_SZ 101 |
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/* message send states */ |
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#define MSG_Q_READY 0 |
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#define MSG_Q_CLEANING 1 |
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#define NO_WAIT 0 |
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#define WAIT_FOREVER 0xFFFF |
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#ifndef NULL |
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#define NULL 0 |
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#endif /* NULL */ |
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/* errors */ |
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#define KMsgQLibErr 0x100 |
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#define KMsgQLibNoMemoryErr (KMsgQLibErr | 1) /* out of memory */ |
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#define KMsgQLibQIdErr (KMsgQLibErr | 2) /* queue already in use or invalid */ |
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#define KMsgQLibParamErr (KMsgQLibErr | 3) /* illegal parm(s)/val(s) */ |
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#define KMsgQLibQFlushErr (KMsgQLibErr | 4) /* queue being flushed */ |
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#define KMsgQLibQShortErr (KMsgQLibErr | 5) /* internal error: inconsistency between #of msgs*/ |
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#define MSG_Q_FIFO 1 |
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#define MSG_Q_PRIORITY 2 |
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#define MSG_PRI_NORMAL 3 |
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#define MSG_PRI_URGENT 4 |
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#define SEM_Q_FIFO 5 |
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#define SEM_Q_PRIORITY 6 |
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#define OK 0 |
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#define ERROR -1 |
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typedef unsigned long ULONG ; |
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typedef unsigned short ushort_t; |
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/** |
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* |
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* Creates a message queue with the argument passed |
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* |
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* @param qName - queue name |
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* @param maxMsgs - max messages in the queue |
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* @param qOptions - message queue options |
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* MSG_Q_FIFO |
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* MSG_Q_PRIORITY |
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* @param err - error code to be returned |
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* |
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* @return Returns status and error code |
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*/ |
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IMPORT_C int MsgQCreate (ULONG qName, ULONG maxMsgs, ULONG qOptions, int* err); |
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/** |
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* |
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* This function deletes a message queue |
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* |
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* @param qName - queue name |
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* @param err - error code to be returned |
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* |
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* @return Returns status and error code |
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**/ |
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IMPORT_C int MsgQDelete (ULONG qName, int* err); |
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/** |
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* |
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* This function sends a message with internal copy |
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* |
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* @param qName - queue name |
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* @param msg - message to send |
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* @param nBytes - length of message |
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* @param priority - message priority |
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* @param timeout - milliseconds to wait |
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* @param err - error code to be returned |
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* |
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* @return Returns status and error code |
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**/ |
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IMPORT_C int MsgQSend (ULONG qName, char* msg, ULONG nBytes, ULONG priority, int timeout, int* err); |
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/** |
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* |
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* This function receives a message with internal copy |
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* |
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* @param qName - queue name |
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* @param msg - buffer for received message |
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* @param maxNBytes - length of buffer |
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* @param timeout - milliseconds to wait |
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* @param err - error code to be returned |
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* |
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* @return Returns status and error code |
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**/ |
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IMPORT_C int MsgQReceive (ULONG qName, char* msg, ULONG maxNBytes, int timeout, int* err); |
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/** |
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* |
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* This function checks how many messages are in a queue |
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* |
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* @param qName - queue name |
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* @param err - error code to be returned |
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* |
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* @return Returns status and error code |
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**/ |
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IMPORT_C int MsgQCheck (ULONG qName, int* err); |
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|
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/** |
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* This function checks the maximum number of messages in a queue |
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* |
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* @param qName - queue name |
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* @param err - error code to be returned |
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* |
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* @return Returns status and error code |
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**/ |
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IMPORT_C int MsgQMaxCheck (ULONG qName, int* err); |
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/** |
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* |
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* This function empties the specified queue |
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* |
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* @param qName - queue name |
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* @param err - error code to be returned |
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* |
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* @return Returns status and error code |
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**/ |
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IMPORT_C int MsgQClean (ULONG qName, int* err); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif // __MSGQLIB_H__ |