Attachment 174200 Details for Bug 212245 – Program used to reproduce the issue

Program used to reproduce the issue

synctest.c (text/plain), 1.29 KB, created by Asbjørn on 2016-08-29 18:24:19 UTC

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Creator: Asbjørn

Created: 2016-08-29 18:24:19 UTC

Size: 1.29 KB

patch

obsolete

>#include <sys/types.h>
>#include <sys/stat.h>
>#include <sys/errno.h>
>#include <fcntl.h>
>#include <stdio.h>
>#include <unistd.h>
>#include <errno.h>
>
>int main()
>{
>    int fd;
>    char outputFilename[] = "output.txt";    
>    int counter;
>    char buffer[200];
>    int len;
>    int written;
>    
>    fd = open(outputFilename, O_WRONLY | O_CREAT | O_TRUNC);
>
>    if (fd == -1) {
>        fprintf(stderr, "Error %d opening output file %s\n", errno, outputFilename);
>        return 1;
>    }
>    
>    counter = 0;
>    while (1)
>    {
>        counter++;
>        
>        len = snprintf(buffer, sizeof(buffer), "%d\n", counter);
>        
>        written = 0;
>        while (len > 0)
>        {
>            written = write(fd, buffer, len);
>            if (written < 0)
>            {
>                fprintf(stderr, "I/O error performing write: %d\n", errno);
>                return 2;
>            }
>            len -= written;
>        }
>        
>        if (fsync(fd) != 0) 
>        {
>            if (errno == EIO)                
>                fprintf(stderr, "I/O error performing fsync: %d\n", errno);
>            else
>                fprintf(stderr, "Invalid file descriptor to fsync(): %d\n", errno);
>            return 3;
>        }
>        
>        fprintf(stdout, "%s", buffer);
>    }
>    
>    close(fd);
>    
>    return 0;
>}

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