I'm writing an extension installer. I want to write the installer in
PHP. This presents a problem if the extension was previously installed and
is automatically being loaded because it can segfault after overwriting
the .so module file.
Can someone recommend a method to avoid this? I can think of a few:
-
Use the -c argument to php to load a custom minimalistic php.ini file
that does load the extension being installed. The downside to this is
that I would like to detect within the installer if the extension is
already installed and is being loaded automatically. -
Use -d installer=yes to enable the extension to detect when it is
being loaded by the installer and returnFALSEto indicate the extension
was not loaded. The downside to this is that a warning is printed if
the modudule initialization routine fails to load.
Any other ideas?
Thanks,
Mike
--
Michael B Allen
PHP Extension for SSO w/ Windows Group Authorization
http://www.ioplex.com/
Hello Michael,
I'm writing an extension installer. I want to write the installer in
PHP. This presents a problem if the extension was previously installed and
is automatically being loaded because it can segfault after overwriting
the .so module file.
IIRC, the correct way to replace .so files is to unlink() them first and
then write the new file into place.
Greetings,
Stefan
On Sat, 10 Jun 2006 19:18:56 +0200
Stefan Esser sesser@php.net wrote:
Hello Michael,
I'm writing an extension installer. I want to write the installer in
PHP. This presents a problem if the extension was previously installed and
is automatically being loaded because it can segfault after overwriting
the .so module file.IIRC, the correct way to replace .so files is to
unlink()them first and
then write the new file into place.
Bingo. That works perfectly.
So 'copy' truncates. If you 'unlink' first you get a new inode and I
guess the old module is copy-on-write'd.
Thanks,
Mike
--
Michael B Allen
PHP Extension for SSO w/ Windows Group Authorization
http://www.ioplex.com/