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56 lines
2.2 KiB
C
56 lines
2.2 KiB
C
/* header for ratelimit.c
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*
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* Copyright 2012-2016 Adiscon GmbH.
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*
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* This file is part of the rsyslog runtime library.
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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* -or-
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* see COPYING.ASL20 in the source distribution
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*
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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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*/
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#ifndef INCLUDED_RATELIMIT_H
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#define INCLUDED_RATELIMIT_H
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struct ratelimit_s {
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char *name; /**< rate limiter name, e.g. for user messages */
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/* support for Linux kernel-type ratelimiting */
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unsigned short interval;
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unsigned short burst;
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intTiny severity; /**< ratelimit only equal or lower severity levels (eq or higher values) */
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unsigned done;
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unsigned missed;
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time_t begin;
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/* support for "last message repeated n times */
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int bReduceRepeatMsgs; /**< shall we do "last message repeated n times" processing? */
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unsigned nsupp; /**< nbr of msgs suppressed */
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smsg_t *pMsg;
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sbool bThreadSafe; /**< do we need to operate in Thread-Safe mode? */
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sbool bNoTimeCache; /**< if we shall not used cached reception time */
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pthread_mutex_t mut; /**< mutex if thread-safe operation desired */
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};
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/* prototypes */
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rsRetVal ratelimitNew(ratelimit_t **ppThis, const char *modname, const char *dynname);
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void ratelimitSetThreadSafe(ratelimit_t *ratelimit);
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void ratelimitSetLinuxLike(ratelimit_t *ratelimit, unsigned short interval, unsigned short burst);
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void ratelimitSetNoTimeCache(ratelimit_t *ratelimit);
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void ratelimitSetSeverity(ratelimit_t *ratelimit, intTiny severity);
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rsRetVal ratelimitMsg(ratelimit_t *ratelimit, smsg_t *pMsg, smsg_t **ppRep);
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rsRetVal ratelimitAddMsg(ratelimit_t *ratelimit, multi_submit_t *pMultiSub, smsg_t *pMsg);
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void ratelimitDestruct(ratelimit_t *pThis);
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int ratelimitChecked(ratelimit_t *ratelimit);
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rsRetVal ratelimitModInit(void);
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void ratelimitModExit(void);
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#endif /* #ifndef INCLUDED_RATELIMIT_H */
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