Req #46919 [Com]: Multi threading

From: Date: Wed, 16 Jan 2013 21:34:58 +0000
Subject: Req #46919 [Com]: Multi threading
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-176061@lists.php.net to get a copy of this message
Edit report at https://bugs.php.net/bug.php?id=46919&edit=1

 ID:                 46919
 Comment by:         invictible at live dot co dot uk
 Reported by:        n0valyfe at gamergrid dot net
 Summary:            Multi threading
 Status:             Open
 Type:               Feature/Change Request
 Package:            Feature/Change Request
 Operating System:   All
 PHP Version:        5.2.8
 Block user comment: N
 Private report:     N

 New Comment:

I believe, that this would be a excellant addition to PHP as I've run into many situation where
multi-threading would have made it much more performant than simply running everything in one thread
where a single function taking it's time or other lengthy tasks can have a significant impact
on the time it takes the script to run.


Previous Comments:
------------------------------------------------------------------------
[2012-03-21 22:09:47] jose dot nobile at gmail dot com

How many year the PHP community will wait for <?PHP new Thread?>

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[2010-04-01 15:05:55] speedy dot spam at gmail dot com

What would be really great to have is something similar to classic pcntl_clone() linux kernel
function on the PHP level, accepting a function to be executed as a parameter and sharing all the
variables/state with the primary and other created threads.

Locking could be done with a simple and optional use of mutexes on the application level, if one
needs to view fully consistent state of a certain variable / array. (ie. otherwise, foreach() loop
while writing to an array in the other thread might not see some recently added entries)

As an idea, on the internal implementation side, copy-on-write semantics could be used with
read-only operations seeing the previous version while the write/modify operation is executed on a
copy.

Even if unstable at first (marked as experimental or some such), it would be a good starting point
for making PHP thread-safe, re-entrant, and multi-core compatible.

------------------------------------------------------------------------
[2008-12-21 19:39:34] n0valyfe at gamergrid dot net

Description:
------------
Would it be possible to add some sort of multithreading into PHP, say a new thread is created via a
function, to execute a function or object method in a new thread.

Keeping the scope intact, so that $this and global vars work inside that function in another thread.

I think this would benefit PHP in many ways, for instance a script wouldnt "hang" when
executing something that can take a while, it can just open a new thread.



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Edit this bug report at https://bugs.php.net/bug.php?id=46919&edit=1


Thread (5 messages)

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