#!/usr/bin/perl

use strict;
use vars qw ($file $DELAY);
########## CONFIG
  $file = "lcd4linux"; # .png is appended
  $DELAY = 0;          # delay in seconds
                       # if delay is zero, file is sent when modified.
#################

use CGI qw/:push -nph/;
$| = 1;
my ($mtime, $nmtime, $size, $nsize);
(undef, undef, undef, undef, undef, undef, undef, $size, undef,
   $mtime) = stat "$file.png";
print multipart_init(-boundary=>'----------------here we go!');
while (1) {
  print multipart_start(-type=>'image/png');
  undef $/;
  open(IN, "$file.png") or die("Can't read '$file.png'");
  $_ = <IN>;
  print $_;
  close(IN);
  print multipart_end;
  if ($DELAY) {
    sleep $DELAY;
  }  
  else {
    W: while (1) {
  #    sleep(1);
      (undef, undef, undef, undef, undef, undef, undef, $nsize, undef,
         $nmtime) = stat "$file.png";
      if($mtime != $nmtime || $size != $nsize) {	 
        $mtime = $nmtime;
	$size = $nsize;
	last W;
      }	
    }	 
  }	
}

inux</td><td class='sub right'>Jonathan McCrohan</td></tr></table>
<table class='tabs'><tr><td>
<a href='/lcd4linux.git/about/'>about</a><a href='/lcd4linux.git/'>summary</a><a href='/lcd4linux.git/refs/?id=2f27e641cea4f304e68a29ec1335b7b4215035c0'>refs</a><a class='active' href='/lcd4linux.git/log/drv_USBHUB.c?showmsg=1&amp;follow=1'>log</a><a href='/lcd4linux.git/tree/drv_USBHUB.c?id=2f27e641cea4f304e68a29ec1335b7b4215035c0'>tree</a><a href='/lcd4linux.git/commit/drv_USBHUB.c?id=2f27e641cea4f304e68a29ec1335b7b4215035c0&amp;follow=1'>commit</a><a href='/lcd4linux.git/diff/drv_USBHUB.c?id=2f27e641cea4f304e68a29ec1335b7b4215035c0&amp;follow=1'>diff</a><a href='/lcd4linux.git/stats/drv_USBHUB.c'>stats</a></td><td class='form'><form class='right' method='get' action='/lcd4linux.git/log/drv_USBHUB.c'>
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<div class='path'>path: <a href='/lcd4linux.git/log/?id=2f27e641cea4f304e68a29ec1335b7b4215035c0&amp;showmsg=1&amp;follow=1'>root</a>/<a href='/lcd4linux.git/log/drv_USBHUB.c?id=2f27e641cea4f304e68a29ec1335b7b4215035c0&amp;showmsg=1&amp;follow=1'>drv_USBHUB.c</a> (<a href='/lcd4linux.git/log/drv_USBHUB.c?id=2f27e641cea4f304e68a29ec1335b7b4215035c0&amp;showmsg=1'>unfollow</a>)</div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/lcd4linux.git/log/drv_USBHUB.c?id=2f27e641cea4f304e68a29ec1335b7b4215035c0&amp;follow=1'>Collapse</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr class='logheader'><td><span title='2010-02-12 13:18:16 +0000'>2010-02-12</span></td><td class='logsubject'><a href='/lcd4linux.git/commit/plugin_fifo.c?id=3a23df4023621d147789140298d9adff6c2c5438&amp;follow=1'>Improved config behavior.</a></td><td>mjona</td><td>1</td><td><span class='deletions'>-9</span>/<span class='insertions'>+32</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1110 3ae390bd-cb1e-0410-b409-cd5a39f66f1f


</td></tr>
<tr class='logheader'><td><span title='2010-02-12 13:16:27 +0000'>2010-02-12</span></td><td class='logsubject'><a href='/lcd4linux.git/commit/cfg.c?id=4f3ae24f7c6365082e1bde846a9d39b7a337e228&amp;follow=1'>Fixed a segmentation fault bug in cfg_get().</a></td><td>mjona</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1109 3ae390bd-cb1e-0410-b409-cd5a39f66f1f


</td></tr>
<tr class='logheader'><td><span title='2010-02-11 16:48:56 +0000'>2010-02-11</span></td><td class='logsubject'><a href='/lcd4linux.git/commit/plugin_fifo.c?id=555ed9099a1d3f78f059f9906c91022f98660cdc&amp;follow=1'>All static memory allocations were turned into dynamical ones.</a></td><td>mjona</td><td>1</td><td><span class='deletions'>-128</span>/<span class='insertions'>+200</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Improved configuration parameters:
- FifoPath	to specify the fifo path (if absent, a built in replacement is used)
- FifoBufSize	to specify the size of the internal buffer (this parameter is optional as
		the plugin will try to match the number of display columns; if it fails and
		no FifoBufSize parameter is supplied then a built in replacement is used)
Simplified and rationalized init and exit functions:
most global variables have been localized.
Fixed several off-by-one overflows memory bugs.



git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1108 3ae390bd-cb1e-0410-b409-cd5a39f66f1f


</td></tr>
<tr class='logheader'><td><span title='2010-02-07 20:45:51 +0000'>2010-02-07</span></td><td class='logsubject'><a href='/lcd4linux.git/commit/timer.c?id=b35fc3f8cbd2ddda61fc256e771c61efc0457a59&amp;follow=1'>timer.c: two small optimizations (removed "flag"; tv_usec can't be negative)</a></td><td>mzuther</td><td>1</td><td><span class='deletions'>-7</span>/<span class='insertions'>+4</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1107 3ae390bd-cb1e-0410-b409-cd5a39f66f1f


</td></tr>
<tr class='logheader'><td><span title='2010-02-07 14:03:46 +0000'>2010-02-07</span></td><td class='logsubject'><a href='/lcd4linux.git/commit/widget_timer.c?id=7496af7c8678b4ee97f9913b26dad028149eed79&amp;follow=1'>added grouping of widgets by update interval (new file "timer_group.c")</a></td><td>mzuther</td><td>13</td><td><span class='deletions'>-168</span>/<span class='insertions'>+441</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1106 3ae390bd-cb1e-0410-b409-cd5a39f66f1f


</td></tr>
<tr class='logheader'><td><span title='2010-02-07 02:52:59 +0000'>2010-02-07</span></td><td class='logsubject'><a href='/lcd4linux.git/commit/timer.c?id=dcb29d2726791b4b770d4b36d27ee81d79a38f9e&amp;follow=1'>BUG: handle negative delays in timer_process() (timer.c)</a></td><td>mzuther</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+4</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1105 3ae390bd-cb1e-0410-b409-cd5a39f66f1f


</td></tr>
<tr class='logheader'><td><span title='2010-02-06 23:51:27 +0000'>2010-02-06</span></td><td class='logsubject'><a href='/lcd4linux.git/commit/timer.c?id=7a8ba6a1135800510b93621b78e6d0d3f53e0c2c&amp;follow=1'>timer.c: I had forgotten how to initialize a "struct" :)</a></td><td>mzuther</td><td>1</td><td><span class='deletions'>-3</span>/<span class='insertions'>+4</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1104 3ae390bd-cb1e-0410-b409-cd5a39f66f1f


</td></tr>
<tr class='logheader'><td><span title='2010-02-06 21:42:05 +0000'>2010-02-06</span></td><td class='logsubject'><a href='/lcd4linux.git/commit/timer.c?id=fd89168c6b1e62541f8aa683c6d03a1d19eba7e5&amp;follow=1'>BUG: compensate timers for processing delay ("timer.c")</a></td><td>mzuther</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+3</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1103 3ae390bd-cb1e-0410-b409-cd5a39f66f1f


</td></tr>
<tr class='logheader'><td><span title='2010-02-06 11:29:12 +0000'>2010-02-06</span></td><td class='logsubject'><a href='/lcd4linux.git/commit/timer.c?id=43aef95679f4be26c5fb99c03d18118de3006f03&amp;follow=1'>timer.c: exchanged "proprietary code" with timeradd() and timersub() functions</a></td><td>mzuther</td><td>1</td><td><span class='deletions'>-14</span>/<span class='insertions'>+10</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1102 3ae390bd-cb1e-0410-b409-cd5a39f66f1f


</td></tr>
<tr class='logheader'><td><span title='2010-02-04 13:48:59 +0000'>2010-02-04</span></td><td class='logsubject'><a href='/lcd4linux.git/commit/timer.c?id=15d08f4e90531ed35cea32538a7bd9e7a6ae7e32&amp;follow=1'>timer.c: removed fruitless changes to variable "flag" from timer_process()</a></td><td>mzuther</td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+0</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1101 3ae390bd-cb1e-0410-b409-cd5a39f66f1f


</td></tr>
<tr class='logheader'><td><span title='2010-02-04 13:18:13 +0000'>2010-02-04</span></td><td class='logsubject'><a href='/lcd4linux.git/commit/timer.c?id=39494819fd4f2741de434edb798755c399c66319&amp;follow=1'>According to its man page, timercmp() is broken on some systems -- applied ↵</a></td><td>mzuther</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
the recommended (and equivalent) change.

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1100 3ae390bd-cb1e-0410-b409-cd5a39f66f1f


</td></tr>
<tr class='logheader'><td><span title='2010-02-04 09:37:37 +0000'>2010-02-04</span></td><td class='logsubject'><a href='/lcd4linux.git/commit/plugin_huawei.c?id=0dab110627d99bc1d2d5dbe1eec5765de1b287e9&amp;follow=1'>small warning removed</a></td><td>michael</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1099 3ae390bd-cb1e-0410-b409-cd5a39f66f1f


</td></tr>
<tr class='logheader'><td><span title='2010-02-04 09:37:12 +0000'>2010-02-04</span></td><td class='logsubject'><a href='/lcd4linux.git/commit/plugin_fifo.c?id=88b4878241e82dc129591b93091f06599b3d2d67&amp;follow=1'>clear errno after creating the FIFO by Claas Hilbrecht</a></td><td>michael</td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+2</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1098 3ae390bd-cb1e-0410-b409-cd5a39f66f1f


</td></tr>