ID: 37998
Updated by: [EMAIL PROTECTED]
Reported By: dbs at is dot ua
-Status: No Feedback
+Status: Bogus
Bug Type: MySQLi related
Operating System: linux-2.4.32
PHP Version: 5.1.4
Assigned To: georg
New Comment:
After a fork the two processes share the file handle for the mysql
connection socket,
when one of them terminates it closes its open file handles and so the
shared connection
socket gets closed for both -> so expected behavior ...
Previous Comments:
------------------------------------------------------------------------
[2006-10-26 01:00:00] php-bugs at lists dot php dot net
No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
------------------------------------------------------------------------
[2006-10-18 21:18:41] [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.
------------------------------------------------------------------------
[2006-07-03 15:13:27] dbs at is dot ua
Description:
------------
Parent process lost MySQLi connection when his child gone by external
kill (*NIX `kill') or from self by posix_kill($pid, $sig);
Have different database users, different databases, separate
connections.
Reproduce code:
---------------
#!/usr/local/bin/php
<?php
declare(ticks = 1);
define("MYSQL_HOST", "192.168.102.10");
define("MYSQL_DB1", "db1");
define("MYSQL_DB2", 'db2');
define("MYSQL_USER1", "root1");
define("MYSQL_PASS1", 'pass1');
define("MYSQL_USER2", "root2");
define("MYSQL_PASS2", 'pass2');
define("MAX_THREADS", 3);
class WTF_child {
var $ident; // numeric thread identifier
var $pid; // my PID
var $func; // some functions container
var $db; // database object container
var $daemon = true;
function WTF_child($ident, &$f) {
$this->ident = $ident;
$this->pid = posix_getpid();
$this->func = $f;
pcntl_signal(SIGTERM, array(&$this, "sig_Chandler"));
$this->func->db_connect(MYSQL_USER2, MYSQL_PASS2, MYSQL_DB2,
$this->db, $this);
$this->go();
$this->func->db_close($this->db);
}
function go() {
while ($this->daemon) {
if ($rs = $this->db->query("select " . $this->ident)) {
list($id) = $rs->fetch_row();
echo "\tchild process [".$this->pid."]: ".$id."\r\n";
$rs->close();
}
sleep(3);
}
}
function sig_Chandler($sig) {
switch ($sig) {
case SIGTERM:
echo "\tchild process [".$this->pid."]: SIGTERM
received\r\n";
$this->daemon = false;
break;
default:
}
}
}
class WTF_parent {
var $pid; // my process ID
var $func; // some functions
var $db; // db object
var $childs = array();
var $daemon = true;
function WTF_parent() {
$this->pid = posix_getpid();
$this->func = new func();
pcntl_signal(SIGTERM, array(&$this, "sig_Phandler"));
$this->func->db_connect(MYSQL_USER1, MYSQL_PASS1, MYSQL_DB1,
$this->db, $this);
$this->go();
$this->func->db_close($this->db);
}
function go() {
for ($thread_no = 1; $thread_no <= MAX_THREADS; $thread_no++)
{
$pid = pcntl_fork();
if ($pid == -1) {
die("can't fork!");
} elseif ($pid != 0) {
// parent space
$this->childs[$pid] = $thread_no;
} else {
// child space
$child = new WTF_child($thread_no, $this->func);
die();
}
}
while ($this->daemon) {
foreach ($this->childs as $cpid => $ident) {
$rs = pcntl_waitpid($cpid, &$status, WNOHANG);
if ($rs == $cpid || $rs == -1) {
echo "parent process [".$this->pid."]: who kill my
thread #".$ident." with PID = ".$cpid." ? :(\r\n";
unset($this->childs[$cpid]);
}
}
if ($rs = $this->db->query("select 'nice job'")) {
list($str) = $rs->fetch_row();
echo "parent process [".$this->pid."]: ".$str."\r\n";
$rs->close();
}
sleep(5);
}
}
function sig_Phandler($sig) {
switch ($sig) {
case SIGTERM:
echo "parent process [".$this->pid."]: SIGTERM
received\r\n";
$this->daemon = false;
break;
default:
}
}
}
class func {
function db_connect($user, $pass, $db, &$db_obj, &$caller) {
$db_obj = new mysqli(MYSQL_HOST, $user, $pass, $db);
if (mysqli_connect_errno()) {
echo "[", get_class($caller), ", PID = ", $caller->pid, "]:
database connection failed: " , mysqli_connect_error();
die();
}
}
function db_close(&$db_obj) {
$db_obj->close();
}
}
$parent = new WTF_parent();
?>
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--
Edit this bug report at http://bugs.php.net/?id=37998&edit=1
