dte_dbus_mq.c：40：error：expected'='，'，';'，'asm'或'__attribute__''ClientConn'

Question

我有一個程序，它與IBM MQ連接和斷開連接，我編譯時錯誤：

dte_dbus_mq.c

#include <stdio.h>  
#include <cmqc.h>  
#include "dte_mq.h"  
#include <string.h>  
#include <stdlib.h>  
typedef struct tagDTE_QUEUE_DESCRIPTOR  
{ 
    MQHOBJ handle;  
    int IsSyncpointControled;  
} DTE_QUEUE_DESCRIPTOR, *PDTE_QUEUE_DESCRIPTOR;  

#define MAX_NUM_OPEN_QUEUES  10 
MQCNO Connect_options = {MQCNO_DEFAULT};  /* MQCONNX options*/  
    MQCD ClientConn = {MQCD_CLIENT_CONN_DEFAULT}; /* Client connection channel*/ 

int dteMqInit(const char *manager, char *hostname, char *channelName)  
{ 
    MQCHAR48 mgrName; 
    int I; 

    strncpy(ClientConn.ConnectionName,hostname,MQ_CONN_NAME_LENGTH);  
    strncpy(ClientConn.ChannelName,channelName,MQ_CHANNEL_NAME_LENGTH);  

    Connect_options.ClientConnPtr = &ClientConn;  
    Connect_options.Version = MQCNO_VERSION_2;  

    strncpy(mgrName, manager, MQ_Q_MGR_NAME_LENGTH);    

    MQCONNX(mgrName,&Connect_options, &sHConn, &sCompCode &sReason);  
    if (sCompCode != MQCC_OK) return DTE_MQR_FAILED;   

    sQueues = (PDTE_QUEUE_DESCRIPTOR)malloc(sizeof(DTE_QUEUE_DESCRIPTOR) * MAX_NUM_OPEN_QUEUES); 

    for(i = 0; i < MAX_NUM_OPEN_QUEUES; i++)  
     sQueues[i].handle = -1;  

    return DTE_MQR_OK;  
} 

下面是我的計劃，該計劃呼籲上述之一。

NewMQTest.c

#include <stdio.h> 
#include <stdlib.h> 
#include <string.h> 

#include <cmqc.h>   #include <cmqxc.h> 


int main(int argc, char **argv) 
{ 
    MQLONG messlen;     
    char  QMgrName[MQ_Q_MGR_NAME_LENGTH+1]; 
    char  QName[MQ_Q_NAME_LENGTH+1]; 
    char  channelName[MQ_CHANNEL_NAME_LENGTH+1]; 
    char  hostname[1024]; 
    char  port[4]; 
    MQLONG buflen; 
    MQBYTE TempBuf[65536]; 
    int msgsToGet; 
    int msgsGot; 
    int dteretinit; 
    int dteretdeinit; 
    if (argc != 6) 
    { 
     printf("Usage: NewMQTest QMgrName ChlName hostname port QName\n"); 
     exit(-1); 
    } 

    strncpy(QMgrName, argv[1], MQ_Q_MGR_NAME_LENGTH);  
    QMgrName[MQ_Q_MGR_NAME_LENGTH] = '\0';  

    strncpy(channelName, argv[2], MQ_CHANNEL_NAME_LENGTH);  
    channelName[MQ_CHANNEL_NAME_LENGTH] = '\0';  

    strncpy(hostname, argv[3], 1023);  
    hostname[1023] = '\0';  

    strncpy(port,argv[4],4);  

    strncpy(QName, argv[5], MQ_Q_NAME_LENGTH);  
    QName[MQ_Q_NAME_LENGTH] = '\0';  

    printf("Using values:\n"); 
    printf(" QMgrName : %s\n", QMgrName);  
    printf(" QName  : %s\n", QName);  
    printf(" ChannelName: %s\n", channelName);  
    printf(" hostname : %s\n", hostname);  
    printf(" port  : %s\n",port);  

    dteretinit = dteMqInit(QMgrName,hostname,channelName)  
    printf("Return cod from dteMqInit = %d\n",dteretinit);  
} 

下面是錯誤的，這是我收到的編譯時間。

/home/avalanche/oleg/src/dte_dbus_mq.c:25: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘ClientConn’  
/home/avalanche/oleg/src/dte_dbus_mq.c:31: error: conflicting types for ‘dteMqInit’  
/home/avalanche/oleg/inc/dte_mq.h:16: error: previous declaration of ‘dteMqInit’ was here  
/home/avalanche/oleg/src/dte_dbus_mq.c: In function ‘dteMqInit’:  
/home/avalanche/oleg/src/dte_dbus_mq.c:36: error: ‘ClientConn’ undeclared (first use in this function)  
/home/avalanche/oleg/src/dte_dbus_mq.c:36: error: (Each undeclared identifier is reported only once  
/home/avalanche/oleg/src/dte_dbus_mq.c:36: error: for each function it appears in.)  
make: *** [/home/avalanche/oleg/src/dte_dbus_mq.o] Error 1 

Answer 1

正如我在答覆中已經說過你的以前的問題 「My C with MQ receive a message return code 2037」：顯示的MQCONNX使用

I would suggested that you review the sample applications provided with the IBM MQ install. On Linux these would be located in /opt/mqm/samp . The sample amqsget0.c would be similar to your program except it is using a MQCONN not MQCONNX.

一個樣品是amqscnxc.c。

基於錯誤： /home/avalanche/oleg/src/dte_dbus_mq.c:36：錯誤： 'ClientConn' 未申報（在一次使用此功能）

需要聲明/初始化ClientConn爲例如：

#include <cmqxc.h>     /* For MQCD definition   */ 

MQCD  ClientConn = {MQCD_CLIENT_CONN_DEFAULT};