ID: 40566
User updated by: myself at ligesh dot com
Reported By: myself at ligesh dot com
Status: Open
Bug Type: Sockets related
Operating System: Linux
PHP Version: 5.2.1
New Comment:
OK, i checked with 5.2.0 and it works as expected. Also note that i am
using "-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64" at compile time.
Though i don't how this can affect the socket operations. Also the
php-5.20 which is working fine, is also compiled with LARGEFILE_SOURCE.
So it is something in php 5.2.1 that's causing teh problem.
Previous Comments:
------------------------------------------------------------------------
[2007-02-20 20:59:03] myself at ligesh dot com
Ok, Below is the code that will produce it. The fread should return
immediately, and the php should print the message, and then sleep for 1
second, and continue. But instead, u will see php will go into manic
loop, INSIDE the fgets, and will not return. There is no problem if it
is in blocking mode. The function will not return, but it doesn't
become crazy. The version is php 5.2.1.
<?php
$fd = stream_socket_client("ssl://localhost:443");
stream_set_blocking($fd, false);
while (true) {
$res = fread($fd, 1024);
print("Got something $res\n");
print("\n");
sleep(1);
}
------------------------------------------------------------------------
[2007-02-20 20:45:18] [EMAIL PROTECTED]
Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves.
A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external
resources such as databases, etc. If the script requires a
database to demonstrate the issue, please make sure it creates
all necessary tables, stored procedures etc.
Please avoid embedding huge scripts into the report.
Cannot reproduce.
------------------------------------------------------------------------
[2007-02-20 20:36:51] myself at ligesh dot com
Description:
------------
If i do an fgets on a socket that has been noblocked using
stream_set_blocking($fp, false);, then php goes into a loop.
stream_set_blocking($socket, false);
fgets($socket, 1024);
Instead of returning instantly at teh fgets, php goes into an internal
loop. The strace is:
--------------
read(4, 0x98b9180, 5) = -1 EAGAIN (Resource
temporarily unavailable)
Continiously repeated.
--------------------
This is a very nasty bug, and i am really suprised how it got in
there. It was working fine with 5.2.0, but i made a mistake of
upgrading to 5.2.1 and my major program has completely broken down.
Reproduce code:
---------------
----------
$fd = stream_socket_client("ssl://$serv_addr:$serv_port")
stream_set_blocking($fd, false);
fgets($fd, 1024);
-------------
Expected result:
----------------
Return immediately.
Actual result:
--------------
Goes into a manic loop of read returning einval.
------------------------------------------------------------------------
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Edit this bug report at http://bugs.php.net/?id=40566&edit=1
