83 lines
3.2 KiB
C
83 lines
3.2 KiB
C
/*
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*
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***** BEGIN LICENSE BLOCK *****
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Copyright (C) 2009-2018 Olof Hagsand and Benny Holmgren
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This file is part of CLIXON.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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Alternatively, the contents of this file may be used under the terms of
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the GNU General Public License Version 3 or later (the "GPL"),
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in which case the provisions of the GPL are applicable instead
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of those above. If you wish to allow use of your version of this file only
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under the terms of the GPL, and not to allow others to
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use your version of this file under the terms of Apache License version 2,
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indicate your decision by deleting the provisions above and replace them with
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the notice and other provisions required by the GPL. If you do not delete
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the provisions above, a recipient may use your version of this file under
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the terms of any one of the Apache License version 2 or the GPL.
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***** END LICENSE BLOCK *****
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* Event notification streams according to RFC5277
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*/
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#ifndef _CLIXON_STREAM_H_
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#define _CLIXON_STREAM_H_
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/*
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* Types
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*/
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/* subscription callback */
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typedef int (*stream_fn_t)(clicon_handle h, void *event, void *arg);
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struct stream_subscription{
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struct stream_subscription *ss_next;
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char *ss_stream; /* Name of associated stream */
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char *ss_xpath; /* Filter selector as xpath */
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stream_fn_t ss_fn; /* Callback when event occurs */
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void *ss_arg; /* Callback argument */
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};
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/* See RFC8040 9.3, stream list, no replay support for now
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*/
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struct event_stream{
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struct event_stream *es_next;
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char *es_name; /* name of notification event stream */
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char *es_description;
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struct stream_subscription *es_subscription;
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};
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typedef struct event_stream event_stream_t;
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/*
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* Prototypes
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*/
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event_stream_t *stream_find(clicon_handle h, const char *name);
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int stream_register(clicon_handle h, const char *name, const char *description);
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int stream_delete_all(event_stream_t *es);
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int stream_get_xml(clicon_handle h, int access, cbuf *cb);
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int stream_cb_add(clicon_handle h, char *stream, char *xpath, stream_fn_t fn, void *arg);
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int stream_cb_delete(clicon_handle h, char *stream, stream_fn_t fn, void *arg);
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int stream_notify_xml(clicon_handle h, char *stream, cxobj *xevent);
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#if defined(__GNUC__) && __GNUC__ >= 3
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int stream_notify(clicon_handle h, char *stream, const char *event, ...) __attribute__ ((format (printf, 3, 4)));
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#else
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int stream_notify(clicon_handle h, char *stream, const char *event, ...);
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#endif
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/* Backward compatible macro for <1.8 */
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#define backend_notify_xml(h, stream, level, x) stream_notify_xml(h, stream, x)
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#define backend_notify(h, stream, level, event) stream_notify(h, stream, event)
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#endif /* _CLIXON_STREAM_H_ */
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