Edit report at http://bugs.php.net/bug.php?id=52173&edit=1

 ID:                 52173
 Updated by:         [email protected]
 Reported by:        nick dot telford at gmail dot com
 Summary:            ext/pcntl doesn't store/report errors
-Status:             Open
+Status:             To be documented
 Type:               Feature/Change Request
 Package:            PCNTL related
 Operating System:   Linux
 PHP Version:        trunk-SVN-2010-06-24 (SVN)
 Block user comment: N

 New Comment:

Fixed, thanks !


Previous Comments:
------------------------------------------------------------------------
[2010-11-01 21:22:26] [email protected]

Automatic comment from SVN on behalf of lbarnaud
Revision: http://svn.php.net/viewvc/?view=revision&revision=305016
Log: MFH Fix bug #52173 (ext/pcntl doesn't store/report errors)
(patch by nick dot telford at gmail dot com)

------------------------------------------------------------------------
[2010-11-01 21:10:19] [email protected]

Automatic comment from SVN on behalf of lbarnaud
Revision: http://svn.php.net/viewvc/?view=revision&revision=305015
Log: Fix bug #52173 (ext/pcntl doesn't store/report errors) (patch
by nick dot telford at gmail dot com)

------------------------------------------------------------------------
[2010-06-24 19:10:03] nick dot telford at gmail dot com

I've attached a patch that implements solution #3.



The patch used the extent of my amazing copy/paste skills to extract the


posix_get_last_error() and posix_strerror() functionality from ext/posix
and 

duplicate it in ext/pcntl.



If there's anything wrong with this patch, please let me know. But let
me down 

lately - this is the first time I've written (if you can call it that)
any C, 

let alone worked on a PHP extension. We've all gotta start somewhere :)



If you need me to write tests etc. please let me know, also any tips on
how to 

go about doing so.



I've tested this using the example in the description and it works a
treat.

------------------------------------------------------------------------
[2010-06-24 18:19:05] [email protected]

I like option #3.

------------------------------------------------------------------------
[2010-06-24 16:58:59] nick dot telford at gmail dot com

Minor addendum: A solid use-case as to why it is useful for the userland
code to 

read the error code.



When calling pcntl_wait(), -1 will be returned if there are no child
processes 

running (errno == ECHILD) and also if the call is interrupted by a
signal (errno 

== EINTR).



This makes determining whether there are children left to wait on
tricky, as -1 

could simply be an interrupt from a signal being handled.

------------------------------------------------------------------------


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