isolationserver/messagequeue/src/msgqrecv.c
changeset 0 d0f3a028347a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/isolationserver/messagequeue/src/msgqrecv.c	Tue Feb 02 01:10:06 2010 +0200
@@ -0,0 +1,76 @@
+/** 
+ *  @file MsgQRecv.cpp
+ *  Description: Source file for MsgQLib's MsgQReceive 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 <unistd.h>
+#include <string.h>
+#include <msgqinternal.h>
+
+
+
+/*******************************************************************************
+* MsgQReceive (qName, msg, maxNBytes, timeout, err)
+* Description: Function for receiving a message with internal copy
+********************************************************************************/
+
+EXPORT_C int MsgQReceive(ULONG qName, char* msg, ULONG maxNBytes, int timeout, int* err) {
+	ssize_t rxBytes;
+	int toTicks;
+
+	int         qId;
+	struct {
+		long  mtype;
+		char mtext[MAX_MSG_LEN];
+	} message;
+
+	/* check parameters */
+
+	if((qId = msgget((key_t) qName ,IPC_CREAT | 0666 /*| IPC_EXCL */ )) >=0 ) {
+		
+	        toTicks = timeout;      
+		message.mtype = 1;
+		/* receive message */
+		if((rxBytes = msgrcv(qId, &message, (size_t)maxNBytes, 1, toTicks)) != -1) {
+			message.mtext[rxBytes-4] = '\0';
+			bcopy(message.mtext, msg, rxBytes);
+	
+			*err = OK;
+			return ((ULONG)rxBytes);
+		}
+		else {
+			*err = errno;
+		}
+			
+	}
+	else {
+		*err = KMsgQLibQIdErr;
+	}
+	
+	return(ERROR);
+}
+
+