After the sigsetjmp change, this is patch #2 in an effort to get some
sanity restored to signal handling in PHP.
This patch does two things. First, it makes it possible to reset the
timeout without resetting the signal handlers. This is important for
cases where an extension may have deferred signals in its MINIT in order
to implement critical sections. It also lays the groundwork for cleaning
up our signal handling and perhaps eventually implementing our own
signal deferring mechanism so we can have true critical sections.
The second thing this does is to make it possible to terminate the current
child process (only for Apache1 at the moment) on a timeout. There are
a number of extensions that are unhappy about being longjmp'ed out of
and when this happens on a timeout they are left in an inconsistent state.
By turning on exit_on_timeout you can now force the process to terminate
on a timeout which will clean up any hanging locks and/or memory left
hanging after the longjmp.
Never mind, it looks like ext/filter does an estrdup on everything it
gets which doesn't seem very efficient to me as most things it gets
passed will already be emalloc'ed. My custom version of the filter
extension doesn't do this which led to the confusion.
emalloc'ed data assigned to things like r->uri and having it get efree()'ed
on request shutdown which then means that if the Apache logging module
tries to log r->uri it would be reading from free'ed memory. So a simple
estrdup before the filter call takes care of that.
MFH: - Some cleanups here and there
MFH: - Enabled PHP_CHECK_CONFIGURE_OPTIONS (checks for unknown configure
MFH: options)
# Note to Marcus: ext/dba/config.m4 needs to be "converted" to use
# the PHP_ARG_* options. I did't touch it needs quite a lot of work to keep
# it's current behaviour regarding "enabled-by-default" parts of it.
#
# Hint: By using the PHP_ARG_* options you have the "default" option.. ;)
This can get called when "<key> = ${<key>}:/foo" is used in a .ini file, but <key> has not be set yet.
You will end up with a value of ":/foo", but at least it will not crash now.
This adds proto_num to request_info. It is defaulted to HTTP 1.0 (1000)
such that it has a valid value even if the underlying sapi doesn't set it
correctly. It is then used to determine if a 302 or a 303 should be sent
on a Location redirect. Any non GET/HEAD HTTP 1.1 redirect will get a 303
instead of a 302 to be compatible with the HTTP spec.
