view toys/other/count.c @ 877:37e668afd008

Isaac Dunham pointed out that the kernel treats - and _ as identical in module names, so modinfo should too. Made it use mmap() while I was there, and some cosmetic refactoring.
author Rob Landley <>
date Wed, 24 Apr 2013 03:04:31 -0500
parents 786841fdb1e0
line wrap: on
line source

/* count.c - Progress indicator from stdin to stdout
 * Copyright 2002 Rob Landley <>


config COUNT
  bool "count"
  default y
    usage: count

    Copy stdin to stdout, displaying simple progress indicator to stderr.

#include "toys.h"

void count_main(void)
  uint64_t size = 0;
  int len;
  char buf[32];

  for (;;) {
    len = xread(0, toybuf, sizeof(toybuf));
    if (!len) break;
    size += len;
    xwrite(1, toybuf, len);
    xwrite(2, buf, sprintf(buf, "%"PRIu64" bytes\r", size));
  xwrite(2, "\n", 1);