From: seufert at gmail dot com
Operating system: AMD64 Linux 2.6 (Debian)
PHP version: 5.1.2
PHP Bug Type: Streams related
Bug description: Streams blocking after set non-blocking
Description:
------------
Opening a TCP stream, and attempting to access in a non-blocking matter
results in fread continuing to block.
Reproduce code:
---------------
<?php
$socket = stream_socket_server('tcp://0.0.0.0:3838');
stream_set_blocking($socket, 0);
$conns = array(); $text = "";
while(true){
$new_connection = @stream_socket_accept($socket, 0);
print "T";
if(!$new_connection)
sleep(1);
else {
stream_set_blocking($new_connection,0);
$conns[] = $new_connection;
unset($new_connection);
}
foreach($conns as $k=>$c) $text .= fread($conns[$k], 8192);
foreach($conns as $c) fwrite($c,$text);
$text = "";
}
?>
Expected result:
----------------
After connecting once or more (with telnet or similar), the program should
still tick (will print 'T' to console).
Actual result:
--------------
Once 1 or more connections are established, the fread blocks, and prevents
the program from iterating (or printing 'T' to the console). It will
iterate after data is received from all connections.
--
Edit bug report at http://bugs.php.net/?id=36796&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=36796&r=trysnapshot44
Try a CVS snapshot (PHP 5.1):
http://bugs.php.net/fix.php?id=36796&r=trysnapshot51
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=36796&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=36796&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=36796&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=36796&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=36796&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=36796&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=36796&r=support
Expected behavior: http://bugs.php.net/fix.php?id=36796&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=36796&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=36796&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=36796&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=36796&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=36796&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=36796&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=36796&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=36796&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=36796&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=36796&r=mysqlcfg
