tree 319303da69644b844f703076221883c72b855905
parent 328c9e9eade60628c006a8810163ba593f70b104
author Maxim Dounin <mdounin@mdounin.ru> 1562928981 +0300
committer Maxim Dounin <mdounin@mdounin.ru> 1562928981 +0300

Perl: propagate errors.

When an error happens, the ctx->error bit is now set, and croak()
is called to terminate further processing.  The ctx->error bit is
checked in ngx_http_perl_call_handler() to cancel further processing,
and is also checked in various output functions - to make sure these won't
be called if croak() was handled by an eval{} in perl code.

In particular, this ensures that output chain won't be called after
errors, as filters might not expect this to happen.  This fixes some
segmentation faults under low memory conditions.  Also this stops
request processing after filter finalization or request body reading
errors.

For cases where an HTTP error status can be additionally returned (for
example, 416 (Requested Range Not Satisfiable) from the range filter),
the ctx->status field is also added.