Prior to this commit, if anything at all went wrong in
switch_ivr_phrase_macro_event() we would generate a warning like this:
[WARNING] switch_ivr_play_say.c:348 Macro [macro_name]: 'pattern_name' did not match any patterns
This is clearly misleading. The natural thing to do on seeing that
message is to verify that the language files are there, and that the
pattern really does exist in that macro. But none of that was usually
the problem. The message would be generated if the language wasn't
found, or if the channel had gone away, for example.
With this commit, we verify that we actually tried looking for the
pattern before displaying the warning about the pattern not matching.
For years we've been generating spurious messages like:
[WARNING] switch_ivr_play_say.c:348 Macro [voicemail_ack]: 'saved' did not match any patterns
This would happen when the caller hangs up during the playback of
certain prompts in the voicemail system where we weren't checking the
return value of vm_macro_get(). Looking closely at the log, it's
clear we were calling down into switch_ivr_phrase_macro() long after
the channel was gone.
The message above is also misleading -- switch_ivr_phrase_macro()
would have been able to find that pattern just fine, but it never
actually looked because the channel was gone. We'll clean up that
message in a follow on commit.
If we received an event without a content-type header we were
dereferencing a null pointer leading to a seg fault.
Reported-by: Ico <ico@voip-io.org>
ESL-90 --resolve
This commit also reverts 2 previous attempts to fix this very rare race issue spanning back to 2009
62ce853897 Patch from MOC
3a85348cdf FS-2302 mutex added around switch_xml_toxml()
The real problem was switch_xml_toxml_buf() was actually temporarily modifying the xml structure being searialized to make it appaer to be a root structure then serializing it and restoring the pointers. This caused a non-threadsafe operation when some other thread was scanning the same xml structure.
This patch removes the modification and instead passes a new arg to switch_xml_toxml_r indicating to treat the structure as if it were a root structure.
This bug has been present since the induction of xml into FS.
Travis Cross
Anthony Minessale
William King
Dmitry Sobinov
Brian West
Ken Rice
jfigus
Michael Jerris
Chris Rienzo
Jeff Lenk