atmitest/test000_system/atmiclt0_mqsv.c

0001 /**
0002  * @brief Simple message queue server process
0003  *
0004  * @file atmiclt0_mqsv.c
0005  */
0006 /* -----------------------------------------------------------------------------
0007  * Enduro/X Middleware Platform for Distributed Transaction Processing
0008  * Copyright (C) 2009-2016, ATR Baltic, Ltd. All Rights Reserved.
0009  * Copyright (C) 2017-2023, Mavimax, Ltd. All Rights Reserved.
0010  * This software is released under one of the following licenses:
0011  * AGPL (with Java and Go exceptions) or Mavimax's license for commercial use.
0012  * See LICENSE file for full text.
0013  * -----------------------------------------------------------------------------
0014  * AGPL license:
0015  *
0016  * This program is free software; you can redistribute it and/or modify it under
0017  * the terms of the GNU Affero General Public License, version 3 as published
0018  * by the Free Software Foundation;
0019  *
0020  * This program is distributed in the hope that it will be useful, but WITHOUT ANY
0021  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
0022  * PARTICULAR PURPOSE. See the GNU Affero General Public License, version 3
0023  * for more details.
0024  *
0025  * You should have received a copy of the GNU Affero General Public License along
0026  * with this program; if not, write to the Free Software Foundation, Inc.,
0027  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
0028  *
0029  * -----------------------------------------------------------------------------
0030  * A commercial use license is available from Mavimax, Ltd
0031  * contact@mavimax.com
0032  * -----------------------------------------------------------------------------
0033  */
0034 #include <string.h>
0035 #include <stdio.h>
0036 #include <stdlib.h>
0037 #include <memory.h>
0038 #include <pthread.h>
0039 #include <unistd.h>
0040 #include <fcntl.h>
0041 #include <sys_mqueue.h>
0042 #include "test000.h"
0043 #include <ndrstandard.h>
0044 #include <ndebug.h>
0045 #include <errno.h>
0046 /*---------------------------Externs------------------------------------*/
0047 /*---------------------------Macros-------------------------------------*/
0048 /*---------------------------Enums--------------------------------------*/
0049 /*---------------------------Typedefs-----------------------------------*/
0050 /*---------------------------Globals------------------------------------*/
0051 /*---------------------------Statics------------------------------------*/
0052 /*---------------------------Prototypes---------------------------------*/
0053
0054 /**
0055  * This will open some message queue (say, "test000_server") and will provide responses
0056  * back to "test000_client".
0057  * We will use standard API here via sys_mqueue.h
0058  * @param argc
0059  * @param argv
0060  * @return
0061  */
0062 int main( int argc , char **argv )
0063 {
0064     int ret = EXSUCCEED;
0065     mqd_t mq = (mqd_t)EXFAIL;
0066     mqd_t mq_clt = (mqd_t)EXFAIL;
0067     struct mq_attr attr;
0068     char buffer[TEST_REPLY_SIZE];
0069     int must_stop = 0;
0070     int i;
0071
0072     /* initialize the queue attributes */
0073     attr.mq_flags = 0;
0074     attr.mq_maxmsg = 10;
0075     attr.mq_msgsize = TEST_REPLY_SIZE;
0076     attr.mq_curmsgs = 0;
0077
0078     /* create the message queue */
0079     if ((mqd_t)EXFAIL==(mq = ndrx_mq_open(SV_QUEUE_NAME, O_CREAT | O_RDONLY, 0644, &attr)))
0080     {
0081         NDRX_LOG(log_error, "Failed to open queue: [%s]: %s",
0082                 SV_QUEUE_NAME, strerror(errno));
0083         EXFAIL_OUT(ret);
0084     }
0085
0086     do
0087     {
0088         ssize_t bytes_read;
0089
0090         /* receive the message
0091          * Maybe have some timed receive
0092          */
0093         NDRX_LOG(log_debug, "About to RCV!");
0094
0095         if (EXFAIL==(bytes_read=ndrx_mq_receive(mq, buffer,
0096                 TEST_REPLY_SIZE, NULL)))
0097         {
0098             NDRX_LOG(log_error, "Failed to get message: %s", strerror(errno));
0099             EXFAIL_OUT(ret);
0100         }
0101
0102         NDRX_LOG(log_debug, "Read bytes: %d", bytes_read);
0103         NDRX_DUMP(log_debug, "Received data", buffer, TEST_REPLY_SIZE);
0104
0105         /* translate to reply format */
0106         for (i=1;i<TEST_REPLY_SIZE; i++)
0107         {
0108             buffer[i] = buffer[i]+1;
0109         }
0110
0111         /* Sender reply */
0112
0113         if ((mqd_t)EXFAIL==(mq_clt = ndrx_mq_open(CL_QUEUE_NAME, O_RDWR, 0644, &attr)))
0114         {
0115             NDRX_LOG(log_error, "Failed to open queue: [%s]: %s",
0116                     SV_QUEUE_NAME, strerror(errno));
0117             EXFAIL_OUT(ret);
0118         }
0119
0120         NDRX_DUMP(log_debug, "Sending data", buffer, TEST_REPLY_SIZE);
0121         if (EXFAIL==ndrx_mq_send(mq_clt, buffer,
0122                 TEST_REPLY_SIZE, 0))
0123         {
0124             NDRX_LOG(log_error, "Failed to send message: %s", strerror(errno));
0125             EXFAIL_OUT(ret);
0126         }
0127
0128         /* close server queue... */
0129         if (EXFAIL==ndrx_mq_close(mq_clt))
0130         {
0131             NDRX_LOG(log_error, "Failed to close client queue: %s",
0132                     strerror(errno));
0133             EXFAIL_OUT(ret);
0134         }
0135
0136     } while (!must_stop);
0137
0138 out:
0139     /* cleanup */
0140
0141     if ((mqd_t)EXFAIL!=mq && EXFAIL==ndrx_mq_close(mq))
0142     {
0143         NDRX_LOG(log_error, "Failed to close queue: %s", strerror(errno));
0144     }
0145
0146     return ret;
0147 }
0148
0149
0150 /* vim: set ts=4 sw=4 et smartindent: */