4 Commits (8bd6f695dc6670db7e6834978b76532b0141f6dc)

Author	SHA1	Message	Date
Richard Mudgett	30cd559345	DNS: Need to use the same serializer for a pjproject SIP transaction. ... All send/receive processing for a SIP transaction needs to be done under the same threadpool serializer to prevent reentrancy problems inside pjproject when using an external DNS resolver to process messages for the transaction. * Add threadpool API call to get the current serializer associated with the worker thread. * Pick a serializer from a pool of default serializers if the caller of res_pjsip.c:ast_sip_push_task() does not provide one. This is a simple way to ensure that all outgoing SIP request messages are processed under a serializer. Otherwise, any place where a pushed task is done that would result in an outgoing out-of-dialog request would need to be modified to supply a serializer. Serializers from the default serializer pool are picked in a round robin sequence for simplicity. A side effect is that the default serializer pool will limit the growth of the thread pool from random tasks. This is not necessarily a bad thing. * Made pjsip_resolver.c use the requesting thread's serializer to execute the async callback. * Made pjsip_distributor.c save the thread's serializer name on the outgoing request tdata struct so the response can be processed under the same serializer. ASTERISK-25115 #close Reported by: John Bigelow Change-Id: Iea71c16ce1132017b5791635e198b8c27973f40a	11 years ago
Richard Mudgett	b23f33e7e5	DNS: Fix some corner cases. ... * Fix query_set destruction before we are done kicking the queries off. * Fixed no queries requested handling. * Add empty queries request unit test. * Added missing allocation check in ast_dns_query_set_add(). * Made initial pjsip resolving query vector slightly larger. ASTERISK-25115 Reported by: John Bigelow Change-Id: Ie8be8347d0992e93946d72b6e7b1299727b038f2	11 years ago
Richard Mudgett	83bc9d366d	pjsip_resolver.c: Fix debug code to only execute at acceptable debug level. ... Change-Id: I1716c93d6e097ad28128ecb9e806aac7a4180c8a	11 years ago
Joshua Colp	a3cec44a0a	res_pjsip: Add external PJSIP resolver implementation using core DNS API. ... This change adds the following: 1. A query set implementation. This is an API that allows queries to be executed in parallel and once all have completed a callback is invoked. 2. Unit tests for the query set implementation. 3. An external PJSIP resolver which uses the DNS core API to do NAPTR, SRV, AAAA, and A lookups. For the resolver it will do NAPTR, SRV, and AAAA/A lookups in parallel. If NAPTR or SRV are available it will then do more queries. And so on. Preference is NAPTR > SRV > AAAA/A, with IPv6 preferred over IPv4. For transport it will prefer TLS > TCP > UDP if no explicit transport has been provided. Configured transports on the system are taken into account to eliminate resolved addresses which have no hope of completing. ASTERISK-24947 #close Reported by: Joshua Colp Change-Id: I56cb03ce4f9d3d600776f36928e0b3e379b5d71e	11 years ago