Fix memory leaks in stasis_channels and bridge_native_rtp
This patch fixes two memory leaks: * A memory leak in packing channels into a multi-channel blob payload when publishing dial messages. The multi-channel blob payload does not steal the references - this approach was chosen because it works well with the RAII_VAR macro. Unfortunately, this does mean that you actually have to use the RAII_VAR macro (or manually deref it yourself) * RTP instances returned as a result of one of the glue operations are ref counted and have to be de-ref'd appropriately. We now do that, as saying that we should do it and then not would be silly. git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@391479 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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@ -155,7 +155,10 @@ static int native_rtp_bridge_compatible(struct ast_bridge *bridge)
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struct ast_bridge_channel *c1 = AST_LIST_LAST(&bridge->channels);
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enum ast_rtp_glue_result native_type;
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struct ast_rtp_glue *glue0, *glue1;
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struct ast_rtp_instance *instance0 = NULL, *instance1 = NULL, *vinstance0 = NULL, *vinstance1 = NULL;
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RAII_VAR(struct ast_rtp_instance *, instance0, NULL, ao2_cleanup);
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RAII_VAR(struct ast_rtp_instance *, instance1, NULL, ao2_cleanup);
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RAII_VAR(struct ast_rtp_instance *, vinstance0, NULL, ao2_cleanup);
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RAII_VAR(struct ast_rtp_instance *, vinstance1, NULL, ao2_cleanup);
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RAII_VAR(struct ast_format_cap *, cap0, ast_format_cap_alloc_nolock(), ast_format_cap_destroy);
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RAII_VAR(struct ast_format_cap *, cap1, ast_format_cap_alloc_nolock(), ast_format_cap_destroy);
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int read_ptime0, read_ptime1, write_ptime0, write_ptime1;
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@ -120,6 +120,7 @@ static void channel_snapshot_dtor(void *obj)
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{
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struct ast_channel_snapshot *snapshot = obj;
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ast_string_field_free_memory(snapshot);
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ao2_cleanup(snapshot->manager_vars);
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}
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struct ast_channel_snapshot *ast_channel_snapshot_create(struct ast_channel *chan)
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@ -199,8 +200,8 @@ void ast_channel_publish_dial(struct ast_channel *caller, struct ast_channel *pe
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RAII_VAR(struct ast_multi_channel_blob *, payload, NULL, ao2_cleanup);
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RAII_VAR(struct stasis_message *, msg, NULL, ao2_cleanup);
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RAII_VAR(struct ast_json *, blob, NULL, ast_json_unref);
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struct ast_channel_snapshot *caller_snapshot;
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struct ast_channel_snapshot *peer_snapshot;
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RAII_VAR(struct ast_channel_snapshot *, caller_snapshot, NULL, ao2_cleanup);
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RAII_VAR(struct ast_channel_snapshot *, peer_snapshot, NULL, ao2_cleanup);
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ast_assert(peer != NULL);
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blob = ast_json_pack("{s: s, s: s}",
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