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Old 05-26-2005, 02:35 PM   #1
os2
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structure


hi

i would like to be able to change value of the struct in initReadRtu function...

Code:
typedef struct production_s {
  ...
} production_t;
void initReadRtu(production_t *[]);

int main()
{
  production_t prod[2];
  initReadRtu(&prod);
  return 0;
}

each time i compile this code, i get:

warning: passing arg 1 of `initReadRtu' from incompatible pointer type


any idea?

thanks
 
Old 05-26-2005, 02:57 PM   #2
juanbobo
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Try "**" instead of "*[]"?
 
Old 05-26-2005, 03:03 PM   #3
os2
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get the same result
 
Old 05-26-2005, 03:37 PM   #4
introuble
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Code:
typedef struct production_s {
 ..
} production_t;

void initReadRtu(production_t *prod) {
 ...
}

int main()
{
        production_t prod[2];
        initReadRtu(prod);
        return 0;
}
 
Old 05-27-2005, 08:07 AM   #5
os2
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introuble, that work, but my program crash after a few second

if i don't use struct... and i use many variables... that work without problem....

if somebody want to check the file...

www.laboiteaprog.com/tmp.tar.gz

export to do....
Code:
export LOCAL_DIR_LED=/opt/good/engcoop2/test
export LOCAL_DIR_CSV=/opt/good/engcoop2/test
export MNT_DIR_WWW=/opt/good/engcoop2/test
export MNT_DIR=/opt/good/engcoop2/test
export MNT_DIR_CSV=/opt/good/engcoop2/test
export EQU_NAME=triplex

thanks

Last edited by os2; 05-27-2005 at 08:22 AM.
 
Old 05-27-2005, 09:08 AM   #6
os2
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the problem seem my thread....

Code:
rc = pthread_create(&threads, NULL, (void *)&writeFile, (void *)&prod);
    if (rc) {
      makehtml_syslog("**CRITICAL** return code from pthread_create() is %d\n", rc);
      exit(-1);
}

writeFile function
Code:
void writeFile(production_t *prod)
{
    while(1)
    {
        sleep(2);
        writeWebPage(&prod);
        
        if (newDay==true)
        {
            changeDay();
            newDay=false;
        }   
        
        if(runbHistory==true)
        {
            bHistoryWebPage();
            runbHistory=false;   
        }
        
        if(runHistory==true)
        {
            historyWebPage();
            runHistory=false;   
        }
    }
}
writewebpage function
Code:
void writeWebPage(production_t *prod)
{    
    //production_t prod[2];
    
    char tmp_mnt_dir_www[75];
    
    snprintf(tmp_mnt_dir_www, sizeof(tmp_mnt_dir_www),"%s/makehtml.lock", mnt_dir_www);
    
    /*create lock file*/
    createLockFile(tmp_mnt_dir_www);
    
    /*picture page */
    summaryWebPage(&prod);
        
    /*information page on counter */
    detailWebPage(&prod);
        
    msgDisplayPanel();
    
    /*remove file lock*/
    removeFile(tmp_mnt_dir_www);
}
 
Old 05-29-2005, 07:39 PM   #7
eddiebaby1023
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You're going over the top with your '&'s. If prod is declared as an array, "prod" is already a pointer to it, and taking the address of the pointer isn't what you want. If you're lucky, the compiler may silently ignore the '&' but if it doesn't your code will break. You also don't need the '&' before "writeWebPage" - the function name is already a pointer.
 
  


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