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Full Discussion: Multi threading?
Top Forums Programming Multi threading? Post 302119283 by porter on Tuesday 29th of May 2007 04:09:18 AM
Old 05-29-2007
select driven loop.....

Code:
static char buf[256];
char *p=buf;
long count;

while (1)  {
  fd_set fdr;
  struct timeval to;
  FD_ZERO(&fdr);
  FD_SET(0,&fdr);

   to.tv_sec=1;
   to.tv_usec=0;

   if (select(1,&fdr,NULL,NULL,&to)>0)
   { 
        if (FD_ISSET(0,&fdr))
        {
              char c;
             if (1==read(0,&c,1))
             {
                 *p++=c;
                 *p=0;
                  if (c=='\n') 
                  {
                      count=atol(buf);
                      p=buf;
                  }  
             }
        }
    }
    else
    {
         count++;
        printf("%ld\n",count);
    }
}


Last edited by porter; 05-29-2007 at 06:30 AM..
 

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CAT(1)							      General Commands Manual							    CAT(1)

NAME
cat - catenate and print SYNOPSIS
cat [ -u ] [ -n ] [ -s ] [ -v ] file ... DESCRIPTION
Cat reads each file in sequence and displays it on the standard output. Thus cat file displays the file on the standard output, and cat file1 file2 >file3 concatenates the first two files and places the result on the third. If no input file is given, or if the argument `-' is encountered, cat reads from the standard input file. Output is buffered in the block size recommended by stat(2) unless the standard output is a terminal, when it is line buffered. The -u option makes the output completely unbuffered. The -n option displays the output lines preceded by lines numbers, numbered sequentially from 1. Specifying the -b option with the -n option omits the line numbers from blank lines. The -s option crushes out multiple adjacent empty lines so that the output is displayed single spaced. The -v option displays non-printing characters so that they are visible. Control characters print like ^X for control-x; the delete char- acter (octal 0177) prints as ^?. Non-ascii characters (with the high bit set) are printed as M- (for meta) followed by the character of the low 7 bits. A -e option may be given with the -v option, which displays a `$' character at the end of each line. Specifying the -t option with the -v option displays tab characters as ^I. SEE ALSO
cp(1), ex(1), more(1), pr(1), tail(1) BUGS
Beware of `cat a b >a' and `cat a b >b', which destroy the input files before reading them. 4th Berkeley Distribution May 5, 1986 CAT(1)
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