Craig Tiller | cd29c58 | 2015-06-24 09:15:15 -0700 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Copyright 2015, Google Inc. |
| 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are |
| 8 | * met: |
| 9 | * |
| 10 | * * Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * * Redistributions in binary form must reproduce the above |
| 13 | * copyright notice, this list of conditions and the following disclaimer |
| 14 | * in the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * * Neither the name of Google Inc. nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | */ |
| 33 | |
| 34 | #include "src/core/client_config/resolvers/dns_resolver.h" |
| 35 | |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 36 | #include <string.h> |
| 37 | |
| 38 | #include <grpc/support/alloc.h> |
Craig Tiller | 6b9f5c6 | 2015-07-29 18:47:35 -0700 | [diff] [blame] | 39 | #include <grpc/support/host_port.h> |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 40 | #include <grpc/support/string_util.h> |
| 41 | |
David Garcia Quintas | 5c4543d | 2015-09-03 15:49:56 -0700 | [diff] [blame] | 42 | #include "src/core/client_config/lb_policy_registry.h" |
Craig Tiller | 6b9f5c6 | 2015-07-29 18:47:35 -0700 | [diff] [blame] | 43 | #include "src/core/client_config/subchannel_factory_decorators/add_channel_arg.h" |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 44 | #include "src/core/iomgr/resolve_address.h" |
| 45 | #include "src/core/support/string.h" |
| 46 | |
| 47 | typedef struct { |
| 48 | /** base class: must be first */ |
| 49 | grpc_resolver base; |
| 50 | /** refcount */ |
| 51 | gpr_refcount refs; |
Craig Tiller | 06a43f5 | 2015-09-15 07:41:28 -0700 | [diff] [blame] | 52 | /** workqueue */ |
| 53 | grpc_workqueue *workqueue; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 54 | /** name to resolve */ |
| 55 | char *name; |
| 56 | /** default port to use */ |
| 57 | char *default_port; |
| 58 | /** subchannel factory */ |
| 59 | grpc_subchannel_factory *subchannel_factory; |
David Garcia Quintas | 5c4543d | 2015-09-03 15:49:56 -0700 | [diff] [blame] | 60 | /** load balancing policy name */ |
| 61 | char *lb_policy_name; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 62 | |
| 63 | /** mutex guarding the rest of the state */ |
| 64 | gpr_mu mu; |
| 65 | /** are we currently resolving? */ |
| 66 | int resolving; |
| 67 | /** which version of resolved_config have we published? */ |
| 68 | int published_version; |
| 69 | /** which version of resolved_config is current? */ |
| 70 | int resolved_version; |
| 71 | /** pending next completion, or NULL */ |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame^] | 72 | grpc_closure *next_completion; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 73 | /** target config address for next completion */ |
| 74 | grpc_client_config **target_config; |
| 75 | /** current (fully resolved) config */ |
| 76 | grpc_client_config *resolved_config; |
| 77 | } dns_resolver; |
| 78 | |
Craig Tiller | 9846503 | 2015-06-29 14:36:42 -0700 | [diff] [blame] | 79 | static void dns_destroy(grpc_resolver *r); |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 80 | |
| 81 | static void dns_start_resolving_locked(dns_resolver *r); |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame^] | 82 | static grpc_closure *dns_maybe_finish_next_locked(dns_resolver *r) |
Craig Tiller | 5795da7 | 2015-09-17 15:27:13 -0700 | [diff] [blame] | 83 | GRPC_MUST_USE_RESULT; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 84 | |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 85 | static void dns_shutdown(grpc_resolver *r); |
| 86 | static void dns_channel_saw_error(grpc_resolver *r, |
| 87 | struct sockaddr *failing_address, |
| 88 | int failing_address_len); |
| 89 | static void dns_next(grpc_resolver *r, grpc_client_config **target_config, |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame^] | 90 | grpc_closure *on_complete); |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 91 | |
| 92 | static const grpc_resolver_vtable dns_resolver_vtable = { |
Craig Tiller | 9846503 | 2015-06-29 14:36:42 -0700 | [diff] [blame] | 93 | dns_destroy, dns_shutdown, dns_channel_saw_error, dns_next}; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 94 | |
| 95 | static void dns_shutdown(grpc_resolver *resolver) { |
| 96 | dns_resolver *r = (dns_resolver *)resolver; |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame^] | 97 | grpc_closure *next_completion; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 98 | gpr_mu_lock(&r->mu); |
Craig Tiller | 5795da7 | 2015-09-17 15:27:13 -0700 | [diff] [blame] | 99 | next_completion = r->next_completion; |
| 100 | r->next_completion = NULL; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 101 | gpr_mu_unlock(&r->mu); |
Craig Tiller | 5795da7 | 2015-09-17 15:27:13 -0700 | [diff] [blame] | 102 | if (next_completion != NULL) { |
| 103 | *r->target_config = NULL; |
| 104 | next_completion->cb(next_completion->cb_arg, 1); |
| 105 | } |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | static void dns_channel_saw_error(grpc_resolver *resolver, struct sockaddr *sa, |
| 109 | int len) { |
| 110 | dns_resolver *r = (dns_resolver *)resolver; |
| 111 | gpr_mu_lock(&r->mu); |
| 112 | if (!r->resolving) { |
| 113 | dns_start_resolving_locked(r); |
| 114 | } |
| 115 | gpr_mu_unlock(&r->mu); |
| 116 | } |
| 117 | |
| 118 | static void dns_next(grpc_resolver *resolver, |
| 119 | grpc_client_config **target_config, |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame^] | 120 | grpc_closure *on_complete) { |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 121 | dns_resolver *r = (dns_resolver *)resolver; |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame^] | 122 | grpc_closure *call = NULL; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 123 | gpr_mu_lock(&r->mu); |
| 124 | GPR_ASSERT(!r->next_completion); |
| 125 | r->next_completion = on_complete; |
| 126 | r->target_config = target_config; |
| 127 | if (r->resolved_version == 0 && !r->resolving) { |
| 128 | dns_start_resolving_locked(r); |
| 129 | } else { |
Craig Tiller | 5795da7 | 2015-09-17 15:27:13 -0700 | [diff] [blame] | 130 | call = dns_maybe_finish_next_locked(r); |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 131 | } |
| 132 | gpr_mu_unlock(&r->mu); |
Craig Tiller | 5795da7 | 2015-09-17 15:27:13 -0700 | [diff] [blame] | 133 | if (call) { |
| 134 | call->cb(call->cb_arg, 1); |
| 135 | } |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 136 | } |
| 137 | |
| 138 | static void dns_on_resolved(void *arg, grpc_resolved_addresses *addresses) { |
| 139 | dns_resolver *r = arg; |
| 140 | grpc_client_config *config = NULL; |
| 141 | grpc_subchannel **subchannels; |
| 142 | grpc_subchannel_args args; |
Craig Tiller | d7b68e7 | 2015-06-28 11:41:09 -0700 | [diff] [blame] | 143 | grpc_lb_policy *lb_policy; |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame^] | 144 | grpc_closure *call; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 145 | size_t i; |
| 146 | if (addresses) { |
David Garcia Quintas | c7705c7 | 2015-09-09 17:21:11 -0700 | [diff] [blame] | 147 | grpc_lb_policy_args lb_policy_args; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 148 | config = grpc_client_config_create(); |
| 149 | subchannels = gpr_malloc(sizeof(grpc_subchannel *) * addresses->naddrs); |
| 150 | for (i = 0; i < addresses->naddrs; i++) { |
| 151 | memset(&args, 0, sizeof(args)); |
| 152 | args.addr = (struct sockaddr *)(addresses->addrs[i].addr); |
Craig Tiller | 3121fd4 | 2015-09-10 09:56:20 -0700 | [diff] [blame] | 153 | args.addr_len = (size_t)addresses->addrs[i].len; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 154 | subchannels[i] = grpc_subchannel_factory_create_subchannel( |
| 155 | r->subchannel_factory, &args); |
| 156 | } |
Craig Tiller | 8f3addc | 2015-09-16 10:12:12 -0700 | [diff] [blame] | 157 | memset(&lb_policy_args, 0, sizeof(lb_policy_args)); |
David Garcia Quintas | c7705c7 | 2015-09-09 17:21:11 -0700 | [diff] [blame] | 158 | lb_policy_args.subchannels = subchannels; |
| 159 | lb_policy_args.num_subchannels = addresses->naddrs; |
Craig Tiller | 8f3addc | 2015-09-16 10:12:12 -0700 | [diff] [blame] | 160 | lb_policy_args.workqueue = r->workqueue; |
David Garcia Quintas | c7705c7 | 2015-09-09 17:21:11 -0700 | [diff] [blame] | 161 | lb_policy = grpc_lb_policy_create(r->lb_policy_name, &lb_policy_args); |
Craig Tiller | d7b68e7 | 2015-06-28 11:41:09 -0700 | [diff] [blame] | 162 | grpc_client_config_set_lb_policy(config, lb_policy); |
| 163 | GRPC_LB_POLICY_UNREF(lb_policy, "construction"); |
Craig Tiller | 9846503 | 2015-06-29 14:36:42 -0700 | [diff] [blame] | 164 | grpc_resolved_addresses_destroy(addresses); |
| 165 | gpr_free(subchannels); |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 166 | } |
| 167 | gpr_mu_lock(&r->mu); |
Craig Tiller | 9846503 | 2015-06-29 14:36:42 -0700 | [diff] [blame] | 168 | GPR_ASSERT(r->resolving); |
| 169 | r->resolving = 0; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 170 | if (r->resolved_config) { |
| 171 | grpc_client_config_unref(r->resolved_config); |
| 172 | } |
| 173 | r->resolved_config = config; |
| 174 | r->resolved_version++; |
Craig Tiller | 5795da7 | 2015-09-17 15:27:13 -0700 | [diff] [blame] | 175 | call = dns_maybe_finish_next_locked(r); |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 176 | gpr_mu_unlock(&r->mu); |
Craig Tiller | 5795da7 | 2015-09-17 15:27:13 -0700 | [diff] [blame] | 177 | if (call) { |
| 178 | call->cb(call->cb_arg, 1); |
| 179 | } |
Craig Tiller | d7b68e7 | 2015-06-28 11:41:09 -0700 | [diff] [blame] | 180 | |
Craig Tiller | 9846503 | 2015-06-29 14:36:42 -0700 | [diff] [blame] | 181 | GRPC_RESOLVER_UNREF(&r->base, "dns-resolving"); |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 182 | } |
| 183 | |
| 184 | static void dns_start_resolving_locked(dns_resolver *r) { |
Craig Tiller | 9846503 | 2015-06-29 14:36:42 -0700 | [diff] [blame] | 185 | GRPC_RESOLVER_REF(&r->base, "dns-resolving"); |
| 186 | GPR_ASSERT(!r->resolving); |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 187 | r->resolving = 1; |
| 188 | grpc_resolve_address(r->name, r->default_port, dns_on_resolved, r); |
| 189 | } |
| 190 | |
Craig Tiller | 3382511 | 2015-09-18 07:44:19 -0700 | [diff] [blame^] | 191 | static grpc_closure *dns_maybe_finish_next_locked(dns_resolver *r) { |
| 192 | grpc_closure *ret = NULL; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 193 | if (r->next_completion != NULL && |
| 194 | r->resolved_version != r->published_version) { |
Craig Tiller | eb3b12e | 2015-06-26 14:42:49 -0700 | [diff] [blame] | 195 | *r->target_config = r->resolved_config; |
Craig Tiller | abf3638 | 2015-06-29 16:13:27 -0700 | [diff] [blame] | 196 | if (r->resolved_config) { |
| 197 | grpc_client_config_ref(r->resolved_config); |
| 198 | } |
Craig Tiller | 5795da7 | 2015-09-17 15:27:13 -0700 | [diff] [blame] | 199 | ret = r->next_completion; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 200 | r->next_completion = NULL; |
| 201 | r->published_version = r->resolved_version; |
| 202 | } |
Craig Tiller | 5795da7 | 2015-09-17 15:27:13 -0700 | [diff] [blame] | 203 | return ret; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 204 | } |
| 205 | |
Craig Tiller | 9846503 | 2015-06-29 14:36:42 -0700 | [diff] [blame] | 206 | static void dns_destroy(grpc_resolver *gr) { |
| 207 | dns_resolver *r = (dns_resolver *)gr; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 208 | gpr_mu_destroy(&r->mu); |
Craig Tiller | d7b68e7 | 2015-06-28 11:41:09 -0700 | [diff] [blame] | 209 | if (r->resolved_config) { |
| 210 | grpc_client_config_unref(r->resolved_config); |
| 211 | } |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 212 | grpc_subchannel_factory_unref(r->subchannel_factory); |
Craig Tiller | 3cd6a51 | 2015-09-16 16:15:47 -0700 | [diff] [blame] | 213 | GRPC_WORKQUEUE_UNREF(r->workqueue, "dns"); |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 214 | gpr_free(r->name); |
| 215 | gpr_free(r->default_port); |
David Garcia Quintas | 5c4543d | 2015-09-03 15:49:56 -0700 | [diff] [blame] | 216 | gpr_free(r->lb_policy_name); |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 217 | gpr_free(r); |
| 218 | } |
| 219 | |
Craig Tiller | 06a43f5 | 2015-09-15 07:41:28 -0700 | [diff] [blame] | 220 | static grpc_resolver *dns_create(grpc_resolver_args *args, |
| 221 | const char *default_port, |
| 222 | const char *lb_policy_name) { |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 223 | dns_resolver *r; |
Craig Tiller | 06a43f5 | 2015-09-15 07:41:28 -0700 | [diff] [blame] | 224 | const char *path = args->uri->path; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 225 | |
Craig Tiller | 06a43f5 | 2015-09-15 07:41:28 -0700 | [diff] [blame] | 226 | if (0 != strcmp(args->uri->authority, "")) { |
| 227 | gpr_log(GPR_ERROR, "authority based dns uri's not supported"); |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 228 | return NULL; |
| 229 | } |
| 230 | |
| 231 | if (path[0] == '/') ++path; |
| 232 | |
| 233 | r = gpr_malloc(sizeof(dns_resolver)); |
| 234 | memset(r, 0, sizeof(*r)); |
| 235 | gpr_ref_init(&r->refs, 1); |
| 236 | gpr_mu_init(&r->mu); |
Craig Tiller | 9846503 | 2015-06-29 14:36:42 -0700 | [diff] [blame] | 237 | grpc_resolver_init(&r->base, &dns_resolver_vtable); |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 238 | r->name = gpr_strdup(path); |
| 239 | r->default_port = gpr_strdup(default_port); |
Craig Tiller | 06a43f5 | 2015-09-15 07:41:28 -0700 | [diff] [blame] | 240 | r->subchannel_factory = args->subchannel_factory; |
| 241 | grpc_subchannel_factory_ref(r->subchannel_factory); |
| 242 | r->workqueue = args->workqueue; |
Craig Tiller | 3cd6a51 | 2015-09-16 16:15:47 -0700 | [diff] [blame] | 243 | GRPC_WORKQUEUE_REF(r->workqueue, "dns"); |
David Garcia Quintas | 5c4543d | 2015-09-03 15:49:56 -0700 | [diff] [blame] | 244 | r->lb_policy_name = gpr_strdup(lb_policy_name); |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 245 | return &r->base; |
| 246 | } |
| 247 | |
| 248 | /* |
| 249 | * FACTORY |
| 250 | */ |
| 251 | |
Craig Tiller | eb3b12e | 2015-06-26 14:42:49 -0700 | [diff] [blame] | 252 | static void dns_factory_ref(grpc_resolver_factory *factory) {} |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 253 | |
Craig Tiller | eb3b12e | 2015-06-26 14:42:49 -0700 | [diff] [blame] | 254 | static void dns_factory_unref(grpc_resolver_factory *factory) {} |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 255 | |
| 256 | static grpc_resolver *dns_factory_create_resolver( |
Craig Tiller | 06a43f5 | 2015-09-15 07:41:28 -0700 | [diff] [blame] | 257 | grpc_resolver_factory *factory, grpc_resolver_args *args) { |
| 258 | return dns_create(args, "https", "pick_first"); |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 259 | } |
| 260 | |
Craig Tiller | bc85be1 | 2015-08-24 10:36:39 -0700 | [diff] [blame] | 261 | char *dns_factory_get_default_host_name(grpc_resolver_factory *factory, |
| 262 | grpc_uri *uri) { |
| 263 | const char *path = uri->path; |
| 264 | if (path[0] == '/') ++path; |
| 265 | return gpr_strdup(path); |
| 266 | } |
| 267 | |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 268 | static const grpc_resolver_factory_vtable dns_factory_vtable = { |
Craig Tiller | bc85be1 | 2015-08-24 10:36:39 -0700 | [diff] [blame] | 269 | dns_factory_ref, dns_factory_unref, dns_factory_create_resolver, |
| 270 | dns_factory_get_default_host_name, "dns"}; |
Craig Tiller | eb3b12e | 2015-06-26 14:42:49 -0700 | [diff] [blame] | 271 | static grpc_resolver_factory dns_resolver_factory = {&dns_factory_vtable}; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 272 | |
Craig Tiller | eb3b12e | 2015-06-26 14:42:49 -0700 | [diff] [blame] | 273 | grpc_resolver_factory *grpc_dns_resolver_factory_create() { |
| 274 | return &dns_resolver_factory; |
Craig Tiller | 3bc8ebd | 2015-06-24 15:41:15 -0700 | [diff] [blame] | 275 | } |