| rrset.h (256281) | rrset.h (269257) |
|---|---|
| 1/* 2 * services/cache/rrset.h - Resource record set cache. 3 * 4 * Copyright (c) 2007, NLnet Labs. All rights reserved. 5 * 6 * This software is open source. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 7 unchanged lines hidden (view full) --- 16 * this list of conditions and the following disclaimer in the documentation 17 * and/or other materials provided with the distribution. 18 * 19 * Neither the name of the NLNET LABS nor the names of its contributors may 20 * be used to endorse or promote products derived from this software without 21 * specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 1/* 2 * services/cache/rrset.h - Resource record set cache. 3 * 4 * Copyright (c) 2007, NLnet Labs. All rights reserved. 5 * 6 * This software is open source. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 7 unchanged lines hidden (view full) --- 16 * this list of conditions and the following disclaimer in the documentation 17 * and/or other materials provided with the distribution. 18 * 19 * Neither the name of the NLNET LABS nor the names of its contributors may 20 * be used to endorse or promote products derived from this software without 21 * specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE 27 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. | 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 27 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 29 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 30 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 31 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 32 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 34 */ 35 36/** 37 * \file 38 * 39 * This file contains the rrset cache. 40 */ 41 --- 84 unchanged lines hidden (view full) --- 126 * @param timenow: current time (to see if ttl in cache is expired). 127 * @return: true if the passed reference is updated, false if it is unchanged. 128 * 0: reference unchanged, inserted in cache. 129 * 1: reference updated, item is inserted in cache. 130 * 2: reference updated, item in cache is considered superior. 131 * also the rdata is equal (but other parameters in cache are superior). 132 */ 133int rrset_cache_update(struct rrset_cache* r, struct rrset_ref* ref, | 34 */ 35 36/** 37 * \file 38 * 39 * This file contains the rrset cache. 40 */ 41 --- 84 unchanged lines hidden (view full) --- 126 * @param timenow: current time (to see if ttl in cache is expired). 127 * @return: true if the passed reference is updated, false if it is unchanged. 128 * 0: reference unchanged, inserted in cache. 129 * 1: reference updated, item is inserted in cache. 130 * 2: reference updated, item in cache is considered superior. 131 * also the rdata is equal (but other parameters in cache are superior). 132 */ 133int rrset_cache_update(struct rrset_cache* r, struct rrset_ref* ref, |
| 134 struct alloc_cache* alloc, uint32_t timenow); | 134 struct alloc_cache* alloc, time_t timenow); |
| 135 136/** 137 * Lookup rrset. You obtain read/write lock. You must unlock before lookup 138 * anything of else. 139 * @param r: the rrset cache. 140 * @param qname: name of rrset to lookup. 141 * @param qnamelen: length of name of rrset to lookup. 142 * @param qtype: type of rrset to lookup (host order). 143 * @param qclass: class of rrset to lookup (host order). 144 * @param flags: rrset flags, or 0. 145 * @param timenow: used to compare with TTL. 146 * @param wr: set true to get writelock. 147 * @return packed rrset key pointer. Remember to unlock the key.entry.lock. 148 * or NULL if could not be found or it was timed out. 149 */ 150struct ub_packed_rrset_key* rrset_cache_lookup(struct rrset_cache* r, 151 uint8_t* qname, size_t qnamelen, uint16_t qtype, uint16_t qclass, | 135 136/** 137 * Lookup rrset. You obtain read/write lock. You must unlock before lookup 138 * anything of else. 139 * @param r: the rrset cache. 140 * @param qname: name of rrset to lookup. 141 * @param qnamelen: length of name of rrset to lookup. 142 * @param qtype: type of rrset to lookup (host order). 143 * @param qclass: class of rrset to lookup (host order). 144 * @param flags: rrset flags, or 0. 145 * @param timenow: used to compare with TTL. 146 * @param wr: set true to get writelock. 147 * @return packed rrset key pointer. Remember to unlock the key.entry.lock. 148 * or NULL if could not be found or it was timed out. 149 */ 150struct ub_packed_rrset_key* rrset_cache_lookup(struct rrset_cache* r, 151 uint8_t* qname, size_t qnamelen, uint16_t qtype, uint16_t qclass, |
| 152 uint32_t flags, uint32_t timenow, int wr); | 152 uint32_t flags, time_t timenow, int wr); |
| 153 154/** 155 * Obtain readlock on a (sorted) list of rrset references. 156 * Checks TTLs and IDs of the rrsets and rollbacks locking if not Ok. 157 * @param ref: array of rrset references (key pointer and ID value). 158 * duplicate references are allowed and handled. 159 * @param count: size of array. 160 * @param timenow: used to compare with TTL. 161 * @return true on success, false on a failure, which can be that some 162 * RRsets have timed out, or that they do not exist any more, the 163 * RRsets have been purged from the cache. 164 * If true, you hold readlocks on all the ref items. 165 */ | 153 154/** 155 * Obtain readlock on a (sorted) list of rrset references. 156 * Checks TTLs and IDs of the rrsets and rollbacks locking if not Ok. 157 * @param ref: array of rrset references (key pointer and ID value). 158 * duplicate references are allowed and handled. 159 * @param count: size of array. 160 * @param timenow: used to compare with TTL. 161 * @return true on success, false on a failure, which can be that some 162 * RRsets have timed out, or that they do not exist any more, the 163 * RRsets have been purged from the cache. 164 * If true, you hold readlocks on all the ref items. 165 */ |
| 166int rrset_array_lock(struct rrset_ref* ref, size_t count, uint32_t timenow); | 166int rrset_array_lock(struct rrset_ref* ref, size_t count, time_t timenow); |
| 167 168/** 169 * Unlock array (sorted) of rrset references. 170 * @param ref: array of rrset references (key pointer and ID value). 171 * duplicate references are allowed and handled. 172 * @param count: size of array. 173 */ 174void rrset_array_unlock(struct rrset_ref* ref, size_t count); --- 19 unchanged lines hidden (view full) --- 194 * If so, it will update the security, trust and rrset-ttl values. 195 * The values are only updated if security is increased (towards secure). 196 * @param r: the rrset cache. 197 * @param rrset: which rrset to attempt to update. This rrset is left 198 * untouched. The rrset in the cache is updated in-place. 199 * @param now: current time. 200 */ 201void rrset_update_sec_status(struct rrset_cache* r, | 167 168/** 169 * Unlock array (sorted) of rrset references. 170 * @param ref: array of rrset references (key pointer and ID value). 171 * duplicate references are allowed and handled. 172 * @param count: size of array. 173 */ 174void rrset_array_unlock(struct rrset_ref* ref, size_t count); --- 19 unchanged lines hidden (view full) --- 194 * If so, it will update the security, trust and rrset-ttl values. 195 * The values are only updated if security is increased (towards secure). 196 * @param r: the rrset cache. 197 * @param rrset: which rrset to attempt to update. This rrset is left 198 * untouched. The rrset in the cache is updated in-place. 199 * @param now: current time. 200 */ 201void rrset_update_sec_status(struct rrset_cache* r, |
| 202 struct ub_packed_rrset_key* rrset, uint32_t now); | 202 struct ub_packed_rrset_key* rrset, time_t now); |
| 203 204/** 205 * Looks up security status of an rrset. Looks up the rrset. 206 * If found, checks if rdata is equal, and entry did not expire. 207 * If so, it will update the security, trust and rrset-ttl values. 208 * @param r: the rrset cache. 209 * @param rrset: This rrset may change security status due to the cache. 210 * But its status will only improve, towards secure. 211 * @param now: current time. 212 */ 213void rrset_check_sec_status(struct rrset_cache* r, | 203 204/** 205 * Looks up security status of an rrset. Looks up the rrset. 206 * If found, checks if rdata is equal, and entry did not expire. 207 * If so, it will update the security, trust and rrset-ttl values. 208 * @param r: the rrset cache. 209 * @param rrset: This rrset may change security status due to the cache. 210 * But its status will only improve, towards secure. 211 * @param now: current time. 212 */ 213void rrset_check_sec_status(struct rrset_cache* r, |
| 214 struct ub_packed_rrset_key* rrset, uint32_t now); | 214 struct ub_packed_rrset_key* rrset, time_t now); |
| 215 216/** 217 * Remove an rrset from the cache, by name and type and flags 218 * @param r: rrset cache 219 * @param nm: name of rrset 220 * @param nmlen: length of name 221 * @param type: type of rrset 222 * @param dclass: class of rrset, host order 223 * @param flags: flags of rrset, host order 224 */ 225void rrset_cache_remove(struct rrset_cache* r, uint8_t* nm, size_t nmlen, 226 uint16_t type, uint16_t dclass, uint32_t flags); 227 228/** mark rrset to be deleted, set id=0 */ 229void rrset_markdel(void* key); 230 231#endif /* SERVICES_CACHE_RRSET_H */ | 215 216/** 217 * Remove an rrset from the cache, by name and type and flags 218 * @param r: rrset cache 219 * @param nm: name of rrset 220 * @param nmlen: length of name 221 * @param type: type of rrset 222 * @param dclass: class of rrset, host order 223 * @param flags: flags of rrset, host order 224 */ 225void rrset_cache_remove(struct rrset_cache* r, uint8_t* nm, size_t nmlen, 226 uint16_t type, uint16_t dclass, uint32_t flags); 227 228/** mark rrset to be deleted, set id=0 */ 229void rrset_markdel(void* key); 230 231#endif /* SERVICES_CACHE_RRSET_H */ |