/**
* @file MsgQSend.cpp
* Description: Source file for MsgQLib's MsgQSend API
* Copyright (c) 2007 Nokia Corporation.
* All rights reserved.
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.Redistributions in binary form must
* reproduce the above copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the distribution.
* Neither the name of the Nokia Corporation nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior written
* permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <errno.h>
#include <sys/msg.h>
#include <sys/sem.h>
#include <string.h>
#include <msgqlib.h>
#include <msgqinternal.h>
/*******************************************************************************
* MsgQSend (qName, msg, nBytes, priority, timeout, err)
* Description: Function for sending a message with internal copy
*********************************************************************************/
EXPORT_C int MsgQSend(ULONG qName, char* msg, ULONG nBytes, ULONG priority, int timeout, int* err)
{
int qId;
struct {
long mtype;
char mtext[MAX_MSG_LEN];
} message;
/* check parameters */
if ((priority == MSG_PRI_NORMAL) || (priority == MSG_PRI_URGENT)) {
if((qId = msgget((key_t) qName ,IPC_CREAT | 0666 /*| IPC_EXCL */ )) >=0 ) {
if( 1 ) {
message.mtype = 1;
bcopy(msg, message.mtext, nBytes);
message.mtext[nBytes] = '\0';
if(msgsnd (qId, &message, (size_t)nBytes+4, timeout) == OK) {
*err = OK;
/* After successfull send, unlock the message queue by using post operation on semaphore.*/
return (OK);
}
else {
*err = errno;
}
}
else
*err = errno;
}
else
*err = KMsgQLibQIdErr;
}
else
*err = KMsgQLibParamErr;
return(ERROR);
}