/usr/include/isc/quota.h is in libbind-dev 1:9.11.3+dfsg-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 | /*
* Copyright (C) 2000, 2001, 2004, 2005, 2007, 2016 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 http://mozilla.org/MPL/2.0/.
*/
/* $Id: quota.h,v 1.16 2007/06/19 23:47:18 tbox Exp $ */
#ifndef ISC_QUOTA_H
#define ISC_QUOTA_H 1
/*****
***** Module Info
*****/
/*! \file isc/quota.h
*
* \brief The isc_quota_t object is a simple helper object for implementing
* quotas on things like the number of simultaneous connections to
* a server. It keeps track of the amount of quota in use, and
* encapsulates the locking necessary to allow multiple tasks to
* share a quota.
*/
/***
*** Imports.
***/
#include <isc/lang.h>
#include <isc/mutex.h>
#include <isc/types.h>
/*****
***** Types.
*****/
ISC_LANG_BEGINDECLS
/*% isc_quota structure */
struct isc_quota {
isc_mutex_t lock; /*%< Locked by lock. */
int max;
int used;
int soft;
};
isc_result_t
isc_quota_init(isc_quota_t *quota, int max);
/*%<
* Initialize a quota object.
*
* Returns:
* ISC_R_SUCCESS
* Other error Lock creation failed.
*/
void
isc_quota_destroy(isc_quota_t *quota);
/*%<
* Destroy a quota object.
*/
void
isc_quota_soft(isc_quota_t *quota, int soft);
/*%<
* Set a soft quota.
*/
void
isc_quota_max(isc_quota_t *quota, int max);
/*%<
* Re-set a maximum quota.
*/
isc_result_t
isc_quota_reserve(isc_quota_t *quota);
/*%<
* Attempt to reserve one unit of 'quota'.
*
* Returns:
* \li #ISC_R_SUCCESS Success
* \li #ISC_R_SOFTQUOTA Success soft quota reached
* \li #ISC_R_QUOTA Quota is full
*/
void
isc_quota_release(isc_quota_t *quota);
/*%<
* Release one unit of quota.
*/
isc_result_t
isc_quota_attach(isc_quota_t *quota, isc_quota_t **p);
/*%<
* Like isc_quota_reserve, and also attaches '*p' to the
* quota if successful (ISC_R_SUCCESS or ISC_R_SOFTQUOTA).
*/
void
isc_quota_detach(isc_quota_t **p);
/*%<
* Like isc_quota_release, and also detaches '*p' from the
* quota.
*/
ISC_LANG_ENDDECLS
#endif /* ISC_QUOTA_H */
|