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📄 atomic.h(4.07 KB)
📄 backtrace.h(3.8 KB)
📄 base32.h(4.35 KB)
📄 base64.h(2.8 KB)
📄 bind9.h(830 B)
📄 boolean.h(594 B)
📄 buffer.h(25.65 KB)
📄 bufferlist.h(1.42 KB)
📄 cmocka.h(1.35 KB)
📄 commandline.h(1.67 KB)
📄 condition.h(1.44 KB)
📄 counter.h(1.88 KB)
📄 crc64.h(998 B)
📄 deprecated.h(623 B)
📄 dir.h(1.56 KB)
📄 endian.h(4.67 KB)
📄 entropy.h(10.13 KB)
📄 errno.h(659 B)
📄 errno2result.h(902 B)
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📄 event.h(2.98 KB)
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📄 file.h(11.39 KB)
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📄 fsaccess.h(7.27 KB)
📄 hash.h(7.48 KB)
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📄 hmacmd5.h(1.75 KB)
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📄 httpd.h(2.26 KB)
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📄 interfaceiter.h(3.05 KB)
📄 iterated_hash.h(1.02 KB)
📄 json.h(1.42 KB)
📄 keyboard.h(989 B)
📄 lang.h(637 B)
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📄 lfsr.h(2.89 KB)
📄 lib.h(1.04 KB)
📄 likely.h(818 B)
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📄 log.h(28.06 KB)
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📄 md5.h(2.32 KB)
📄 mem.h(20.62 KB)
📄 meminfo.h(710 B)
📄 msgcat.h(2.66 KB)
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📄 mutex.h(3.44 KB)
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📄 net.h(10.29 KB)
📄 netaddr.h(4.48 KB)
📄 netdb.h(863 B)
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📄 ondestroy.h(2.73 KB)
📄 os.h(671 B)
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📄 platform.h(9.49 KB)
📄 pool.h(3.42 KB)
📄 portset.h(3.22 KB)
📄 print.h(2.42 KB)
📄 queue.h(5.08 KB)
📄 quota.h(2.38 KB)
📄 radix.h(6.34 KB)
📄 random.h(3.5 KB)
📄 ratelimiter.h(3.42 KB)
📄 refcount.h(8 KB)
📄 regex.h(767 B)
📄 region.h(1.99 KB)
📄 resource.h(2.79 KB)
📄 result.h(4.87 KB)
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📄 rwlock.h(3.72 KB)
📄 safe.h(1.32 KB)
📄 serial.h(1.34 KB)
📄 sha1.h(1.52 KB)
📄 sha2.h(5.6 KB)
📄 siphash.h(734 B)
📄 sockaddr.h(5.9 KB)
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📄 stdatomic.h(5.13 KB)
📄 stdio.h(1.75 KB)
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📄 stdtime.h(1.04 KB)
📄 strerror.h(777 B)
📄 string.h(5.88 KB)
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📄 taskpool.h(3.62 KB)
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📄 time.h(8.67 KB)
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📄 tm.h(895 B)
📄 types.h(5.64 KB)
📄 utf8.h(928 B)
📄 util.h(10.29 KB)
📄 version.h(689 B)
📄 xml.h(1.07 KB)

Editing: counter.h

/*
 * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, you can obtain one at https://mozilla.org/MPL/2.0/.
 *
 * See the COPYRIGHT file distributed with this work for additional
 * information regarding copyright ownership.
 */

#ifndef ISC_COUNTER_H
#define ISC_COUNTER_H 1

/*****
 ***** Module Info
 *****/

/*! \file isc/counter.h
 *
 * \brief The isc_counter_t object is a simplified version of the
 * isc_quota_t object; it tracks the consumption of limited
 * resources, returning an error condition when the quota is
 * exceeded.  However, unlike isc_quota_t, attaching and detaching
 * from a counter object does not increment or decrement the counter.
 */

/***
 *** Imports.
 ***/

#include <isc/lang.h>
#include <isc/mutex.h>
#include <isc/types.h>

/*****
 ***** Types.
 *****/

ISC_LANG_BEGINDECLS

isc_result_t
isc_counter_create(isc_mem_t *mctx, int limit, isc_counter_t **counterp);
/*%<
 * Allocate and initialize a counter object.
 */

isc_result_t
isc_counter_increment(isc_counter_t *counter);
/*%<
 * Increment the counter.
 *
 * If the counter limit is nonzero and has been reached, then
 * return ISC_R_QUOTA, otherwise ISC_R_SUCCESS. (The counter is
 * incremented regardless of return value.)
 */

unsigned int
isc_counter_used(isc_counter_t *counter);
/*%<
 * Return the current counter value.
 */

void
isc_counter_setlimit(isc_counter_t *counter, int limit);
/*%<
 * Set the counter limit.
 */

void
isc_counter_attach(isc_counter_t *source, isc_counter_t **targetp);
/*%<
 * Attach to a counter object, increasing its reference counter.
 */

void
isc_counter_detach(isc_counter_t **counterp);
/*%<
 * Detach (and destroy if reference counter has dropped to zero)
 * a counter object.
 */

ISC_LANG_ENDDECLS

#endif /* ISC_COUNTER_H */

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