From: Slig at free dot fr
Operating system: linux
PHP version: 4CVS-2007-09-21 (snap)
PHP Bug Type: Streams related
Bug description: fread timeout with available datas
Description:
------------
Seems to be on all 5.2, 6 snap, on 32 bits and 64 bits linux.
Note the delay of the last read : it make a 60s timeout while it should
not because datas are available to read. Reading data with a bigger length
value or setting a small timeout time on the stream show that the data is
available immediatly, this timeout shouyld not happen.
It seems to happen only to the last read, when all readable datas where
not read in one shot.
Reproduce code:
---------------
<?php
$handle = fsockopen('tcp://smtp',25);
//stream_set_timeout($handle,0,1);
while(!feof($handle)) {
$r = array($handle);
$w = null;
$e = array($handle);
$nb = stream_select($r,$w,$e,3);
echo "select : $nb, r=".count($r).', w='.count($w).',
e='.count($e)."\n";
while($nb>0){
echo "Reading...\n";
$time = microtime(true);
$contents = fread($handle,30);
$delay = sprintf("%0.6f",(microtime(true)-$time));
echo "Contents(delay:$delay): [$contents]\n";
$r = array($handle);
$w = null;
$e = array($handle);
$nb = stream_select($r,$w,$e,3);
echo "select : $nb, r=".count($r).', w='.count($w).',
e='.count($e)."\n";
}
usleep(20000);
}
fclose($handle);
?>
Expected result:
----------------
select : 1, r=1, w=0, e=0
Reading...
Contents(delay:0.000124): [220 naxos2.unice.fr ESMTP Send]
select : 1, r=1, w=0, e=1
Reading...
Contents(delay:0.000011): [mail 8.13.1/8.13.1; Fri, 21 Se]
select : 1, r=1, w=0, e=1
Reading...
Contents(delay:0.000087): [p 2007 01:55:13 +0200
]
select : 0, r=0, w=0, e=0
select : 0, r=0, w=0, e=0
Actual result:
--------------
select : 1, r=1, w=0, e=0
Reading...
Contents(delay:0.000053): [220 naxos2.unice.fr ESMTP Send]
select : 1, r=1, w=0, e=1
Reading...
Contents(delay:0.000010): [mail 8.13.1/8.13.1; Fri, 21 Se]
select : 1, r=1, w=0, e=1
Reading...
Contents(delay:60.004428): [p 2007 01:53:18 +0200
]
select : 0, r=0, w=0, e=0
select : 0, r=0, w=0, e=0
--
Edit bug report at http://bugs.php.net/?id=42720&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=42720&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=42720&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=42720&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=42720&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=42720&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=42720&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=42720&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=42720&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=42720&r=support
Expected behavior: http://bugs.php.net/fix.php?id=42720&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=42720&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=42720&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=42720&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=42720&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=42720&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=42720&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=42720&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=42720&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=42720&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=42720&r=mysqlcfg
