move open() outside the loop - hbb - hyperbitblock
   DIR Log
   DIR Files
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   DIR README
   DIR LICENSE
       ---
   DIR commit ca8b59231bb5266e3dedcfd633b6379b04b64638
   DIR parent c01752d0dd02e8071d8cf8f6ce346b1f8fc66ec2
  HTML Author: kroovy <me@kroovy.de>
       Date:   Tue, 22 Apr 2025 21:08:14 +0200
       
       move open() outside the loop
       
       Diffstat:
         M hyperbitblock.c                     |      12 +++++++-----
       
       1 file changed, 7 insertions(+), 5 deletions(-)
       ---
   DIR diff --git a/hyperbitblock.c b/hyperbitblock.c
       @@ -1,5 +1,6 @@
        #define _POSIX_SOURCE
        #include <signal.h>
       +#include <stdint.h>
        #include <stdio.h>
        #include <stdlib.h>
        #include <sys/mman.h>
       @@ -53,8 +54,9 @@ int main(void) {
            char c;
            char line[64];
        
       +    fd = open("mynamedpipe", O_RDWR);
       +
        nextline:
       -    fd = open("mynamedpipe", O_RDONLY);
            for (i=0; (res = read(fd, &c, 1)) > 0; i++) { //consider readline/getline
                line[i] = c;
                if (c == '\n') {
       @@ -65,9 +67,9 @@ nextline:
            }
            str_to_ip(line, v4);
            i32 = (v4[0] << 24) | (v4[1] << 16) | (v4[2] << 8) | v4[3];
       -    printf("My IP is: %u.%u.%u.%u\n",v4[0],v4[1],v4[2],v4[3]);
       -    printf("That calculates to: %u\n\n",i32);
       -    close(fd);
       -    sleep(1); //fix with fcntl
       +    printf("My IP is: %u.%u.%u.%u | ",v4[0],v4[1],v4[2],v4[3]);
       +    printf("That calculates to: %u\n",i32);
            goto nextline;
       +
       +    close(fd);
        }