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cd748f27 | 1 | /* |
262a0e14 | 2 | * $Id$ |
26ac0430 | 3 | * vim: set et : |
cd748f27 | 4 | * |
17bb3486 | 5 | * DEBUG: section 47 Store COSS Directory Routines |
cd748f27 | 6 | * AUTHOR: Eric Stern |
7 | * | |
2b6662ba | 8 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
cd748f27 | 9 | * ---------------------------------------------------------- |
10 | * | |
2b6662ba | 11 | * Squid is the result of efforts by numerous individuals from |
12 | * the Internet community; see the CONTRIBUTORS file for full | |
13 | * details. Many organizations have provided support for Squid's | |
14 | * development; see the SPONSORS file for full details. Squid is | |
15 | * Copyrighted (C) 2001 by the Regents of the University of | |
16 | * California; see the COPYRIGHT file for full details. Squid | |
17 | * incorporates software developed and/or copyrighted by other | |
18 | * sources; see the CREDITS file for full details. | |
cd748f27 | 19 | * |
20 | * This program is free software; you can redistribute it and/or modify | |
21 | * it under the terms of the GNU General Public License as published by | |
22 | * the Free Software Foundation; either version 2 of the License, or | |
23 | * (at your option) any later version. | |
26ac0430 | 24 | * |
cd748f27 | 25 | * This program is distributed in the hope that it will be useful, |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
26ac0430 | 29 | * |
cd748f27 | 30 | * You should have received a copy of the GNU General Public License |
31 | * along with this program; if not, write to the Free Software | |
32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
33 | * | |
34 | */ | |
35 | ||
f7f3304a | 36 | #include "squid-old.h" |
b9ae18aa | 37 | #include "CossSwapDir.h" |
e6ccf245 | 38 | #include "Store.h" |
cd748f27 | 39 | |
40 | #include "store_coss.h" | |
a553a5a3 | 41 | #include "event.h" |
528b2c61 | 42 | #include "fde.h" |
d3b3ab85 | 43 | #include "SwapDir.h" |
51ee7c82 | 44 | #include "StoreSwapLogData.h" |
b9ae18aa | 45 | #include "DiskIO/DiskIOModule.h" |
46 | #include "DiskIO/DiskIOStrategy.h" | |
47 | #include "DiskIO/ReadRequest.h" | |
48 | #include "ConfigOption.h" | |
49 | #include "StoreFScoss.h" | |
c8f4eac4 | 50 | #include "Parsing.h" |
63d3a8b0 | 51 | #include "swap_log_op.h" |
8765bc8c | 52 | #include "SquidMath.h" |
cd748f27 | 53 | |
54 | #define STORE_META_BUFSZ 4096 | |
55 | ||
cd748f27 | 56 | int n_coss_dirs = 0; |
57 | /* static int last_coss_pick_index = -1; */ | |
a3efa961 | 58 | MemAllocator *coss_index_pool = NULL; |
cd748f27 | 59 | |
60 | typedef struct _RebuildState RebuildState; | |
62e76326 | 61 | |
26ac0430 | 62 | struct _RebuildState { |
d3b3ab85 | 63 | CossSwapDir *sd; |
cd748f27 | 64 | int n_read; |
65 | FILE *log; | |
66 | int speed; | |
62e76326 | 67 | |
26ac0430 | 68 | struct { |
3d0ac046 HN |
69 | unsigned int clean:1; |
70 | } flags; | |
62e76326 | 71 | |
cd748f27 | 72 | struct _store_rebuild_data counts; |
73 | }; | |
74 | ||
75 | static char *storeCossDirSwapLogFile(SwapDir *, const char *); | |
76 | static EVH storeCossRebuildFromSwapLog; | |
d3b3ab85 | 77 | static void storeCossDirRebuild(CossSwapDir * sd); |
78 | static void storeCossDirCloseTmpSwapLog(CossSwapDir * sd); | |
79 | static FILE *storeCossDirOpenTmpSwapLog(CossSwapDir *, int *, int *); | |
cd748f27 | 80 | |
81 | static char * | |
82 | storeCossDirSwapLogFile(SwapDir * sd, const char *ext) | |
83 | { | |
ef364f64 AJ |
84 | LOCAL_ARRAY(char, path, MAXPATHLEN); |
85 | LOCAL_ARRAY(char, pathtmp, MAXPATHLEN); | |
cd748f27 | 86 | LOCAL_ARRAY(char, digit, 32); |
87 | char *pathtmp2; | |
62e76326 | 88 | |
cd748f27 | 89 | if (Config.Log.swap) { |
ef364f64 | 90 | xstrncpy(pathtmp, sd->path, MAXPATHLEN - 64); |
62e76326 | 91 | pathtmp2 = pathtmp; |
92 | ||
93 | while ((pathtmp2 = strchr(pathtmp2, '/')) != NULL) | |
94 | *pathtmp2 = '.'; | |
95 | ||
96 | while (strlen(pathtmp) && pathtmp[strlen(pathtmp) - 1] == '.') | |
97 | pathtmp[strlen(pathtmp) - 1] = '\0'; | |
98 | ||
3d0ac046 | 99 | for (pathtmp2 = pathtmp; *pathtmp2 == '.'; pathtmp2++); |
ef364f64 | 100 | snprintf(path, MAXPATHLEN - 64, Config.Log.swap, pathtmp2); |
62e76326 | 101 | |
ef364f64 | 102 | if (strncmp(path, Config.Log.swap, MAXPATHLEN - 64) == 0) { |
62e76326 | 103 | strcat(path, "."); |
104 | snprintf(digit, 32, "%02d", sd->index); | |
105 | strncat(path, digit, 3); | |
106 | } | |
cd748f27 | 107 | } else { |
ef364f64 | 108 | xstrncpy(path, sd->path, MAXPATHLEN - 64); |
62e76326 | 109 | strcat(path, "/swap.state"); |
cd748f27 | 110 | } |
62e76326 | 111 | |
cd748f27 | 112 | if (ext) |
62e76326 | 113 | strncat(path, ext, 16); |
114 | ||
cd748f27 | 115 | return path; |
116 | } | |
117 | ||
d3b3ab85 | 118 | void |
119 | CossSwapDir::openLog() | |
cd748f27 | 120 | { |
d3b3ab85 | 121 | char *logPath; |
122 | logPath = storeCossDirSwapLogFile(this, NULL); | |
123 | swaplog_fd = file_open(logPath, O_WRONLY | O_CREAT | O_BINARY); | |
62e76326 | 124 | |
d3b3ab85 | 125 | if (swaplog_fd < 0) { |
bf8fe701 | 126 | debugs(47, 1, "" << logPath << ": " << xstrerror()); |
62e76326 | 127 | fatal("storeCossDirOpenSwapLog: Failed to open swap log."); |
cd748f27 | 128 | } |
62e76326 | 129 | |
bf8fe701 | 130 | debugs(47, 3, "Cache COSS Dir #" << index << " log opened on FD " << swaplog_fd); |
cd748f27 | 131 | } |
132 | ||
d3b3ab85 | 133 | void |
134 | CossSwapDir::closeLog() | |
cd748f27 | 135 | { |
d3b3ab85 | 136 | if (swaplog_fd < 0) /* not open */ |
62e76326 | 137 | return; |
138 | ||
d3b3ab85 | 139 | file_close(swaplog_fd); |
62e76326 | 140 | |
bf8fe701 | 141 | debugs(47, 3, "Cache COSS Dir #" << index << " log closed on FD " << swaplog_fd); |
62e76326 | 142 | |
d3b3ab85 | 143 | swaplog_fd = -1; |
cd748f27 | 144 | } |
145 | ||
d3b3ab85 | 146 | void |
b9ae18aa | 147 | CossSwapDir::ioCompletedNotification() |
d3b3ab85 | 148 | { |
b9ae18aa | 149 | if (theFile->error()) { |
bf8fe701 | 150 | debugs(47, 1, "" << path << ": " << xstrerror()); |
1a224843 | 151 | fatal("storeCossDirInit: Failed to open a COSS file."); |
697c29aa | 152 | } |
b9ae18aa | 153 | } |
154 | ||
155 | void | |
156 | CossSwapDir::closeCompleted() | |
157 | { | |
158 | theFile = NULL; | |
159 | } | |
160 | ||
161 | void | |
162 | CossSwapDir::readCompleted(const char *buf, int len, int errflag, RefCount<ReadRequest> aRequest) | |
163 | { | |
164 | CossRead* cossRead= dynamic_cast<CossRead *>(aRequest.getRaw()); | |
165 | assert (cossRead); | |
166 | StoreIOState::Pointer sio = cossRead->sio; | |
167 | void *cbdata; | |
c6ee6676 | 168 | StoreIOState::STRCB *callback = sio->read.callback; |
b9ae18aa | 169 | char *p; |
170 | CossState *cstate = dynamic_cast<CossState *>(sio.getRaw()); | |
171 | ssize_t rlen; | |
172 | ||
bf8fe701 | 173 | debugs(79, 3, "storeCossReadDone: fileno " << sio->swap_filen << ", len " << len); |
b9ae18aa | 174 | cstate->flags.reading = 0; |
175 | ||
176 | if (errflag) { | |
177 | StoreFScoss::GetInstance().stats.read.fail++; | |
178 | ||
179 | if (errflag > 0) { | |
180 | errno = errflag; | |
bf8fe701 | 181 | debugs(79, 1, "storeCossReadDone: error: " << xstrerror()); |
b9ae18aa | 182 | } else { |
bf8fe701 | 183 | debugs(79, 1, "storeCossReadDone: got failure (" << errflag << ")"); |
b9ae18aa | 184 | } |
185 | ||
186 | rlen = -1; | |
187 | } else { | |
188 | StoreFScoss::GetInstance().stats.read.success++; | |
189 | ||
190 | if (cstate->readbuffer == NULL) { | |
191 | cstate->readbuffer = (char *)xmalloc(cstate->st_size); | |
192 | p = storeCossMemPointerFromDiskOffset(storeCossFilenoToDiskOffset(sio->swap_filen), | |
193 | NULL); | |
41d00cd3 | 194 | memcpy(cstate->readbuffer, p, cstate->st_size); |
b9ae18aa | 195 | } |
196 | ||
197 | sio->offset_ += len; | |
41d00cd3 | 198 | memcpy(cstate->requestbuf, &cstate->readbuffer[cstate->requestoffset], |
e34763f4 | 199 | cstate->requestlen); |
b9ae18aa | 200 | rlen = (size_t) cstate->requestlen; |
201 | } | |
202 | ||
203 | assert(callback); | |
204 | sio->read.callback = NULL; | |
205 | ||
206 | if (cbdataReferenceValidDone(sio->read.callback_data, &cbdata)) | |
c6ee6676 | 207 | callback(cbdata, cstate->requestbuf, rlen, sio); |
b9ae18aa | 208 | } |
209 | ||
210 | void | |
211 | CossSwapDir::writeCompleted(int errflag, size_t len, RefCount<WriteRequest> writeRequest) | |
212 | { | |
213 | CossWrite* cossWrite= dynamic_cast<CossWrite *>(writeRequest.getRaw()); | |
214 | assert (cossWrite); | |
215 | ||
4a7a3d56 | 216 | debugs(79, 3, "storeCossWriteMemBufDone: buf " << cossWrite->membuf << ", len " << len); |
b9ae18aa | 217 | |
218 | ||
219 | if (errflag) { | |
220 | StoreFScoss::GetInstance().stats.stripe_write.fail++; | |
bf8fe701 | 221 | debugs(79, 1, "storeCossWriteMemBufDone: got failure (" << errflag << ")"); |
ddd1cefa | 222 | debugs(79, 1, "size=" << cossWrite->membuf->diskend - cossWrite->membuf->diskstart); |
b9ae18aa | 223 | } else { |
224 | StoreFScoss::GetInstance().stats.stripe_write.success++; | |
225 | } | |
226 | ||
227 | ||
228 | dlinkDelete(&cossWrite->membuf->node, &membufs); | |
229 | cbdataFree(cossWrite->membuf); | |
230 | StoreFScoss::GetInstance().stats.stripes--; | |
231 | } | |
232 | ||
233 | void | |
234 | CossSwapDir::changeIO(DiskIOModule *module) | |
235 | { | |
236 | DiskIOStrategy *anIO = module->createStrategy(); | |
237 | safe_free(ioModule); | |
238 | ioModule = xstrdup(module->type()); | |
239 | ||
240 | delete io; | |
241 | io = anIO; | |
242 | /* Change the IO Options */ | |
243 | ||
e2a8733e | 244 | if (currentIOOptions == NULL) |
245 | currentIOOptions = new ConfigOptionVector(); | |
246 | ||
b9ae18aa | 247 | if (currentIOOptions->options.size() > 3) |
248 | delete currentIOOptions->options.pop_back(); | |
249 | ||
250 | /* TODO: factor out these 4 lines */ | |
251 | ConfigOption *ioOptions = NULL; | |
252 | ||
253 | if (io) | |
254 | ioOptions = io->getOptionTree(); | |
255 | ||
256 | if (ioOptions) | |
257 | currentIOOptions->options.push_back(ioOptions); | |
258 | } | |
259 | ||
260 | bool | |
261 | CossSwapDir::optionIOParse(char const *option, const char *value, int reconfiguring) | |
262 | { | |
263 | if (strcmp(option, "IOEngine") != 0) | |
264 | return false; | |
265 | ||
266 | if (reconfiguring) | |
267 | /* silently ignore this */ | |
268 | return true; | |
269 | ||
270 | if (!value) | |
271 | self_destruct(); | |
272 | ||
273 | DiskIOModule *module = DiskIOModule::Find(value); | |
274 | ||
275 | if (!module) | |
276 | self_destruct(); | |
277 | ||
278 | changeIO(module); | |
279 | ||
280 | return true; | |
281 | } | |
282 | ||
283 | void | |
284 | CossSwapDir::optionIODump(StoreEntry * e) const | |
285 | { | |
286 | storeAppendPrintf(e, " IOEngine=%s", ioModule); | |
287 | } | |
288 | ||
289 | ConfigOption * | |
290 | CossSwapDir::getOptionTree() const | |
291 | { | |
292 | ConfigOption *parentResult = SwapDir::getOptionTree(); | |
293 | ||
e2a8733e | 294 | if (currentIOOptions == NULL) |
295 | currentIOOptions = new ConfigOptionVector(); | |
296 | ||
b9ae18aa | 297 | currentIOOptions->options.push_back(parentResult); |
e2a8733e | 298 | |
b9ae18aa | 299 | currentIOOptions->options.push_back(new ConfigOptionAdapter<CossSwapDir>(*const_cast<CossSwapDir *>(this), &CossSwapDir::optionIOParse, &CossSwapDir::optionIODump)); |
e2a8733e | 300 | |
b9ae18aa | 301 | currentIOOptions->options.push_back( |
302 | new ConfigOptionAdapter<CossSwapDir>(*const_cast<CossSwapDir *>(this), | |
303 | &CossSwapDir::optionBlockSizeParse, | |
304 | &CossSwapDir::optionBlockSizeDump)); | |
305 | ||
306 | ||
307 | ConfigOption *ioOptions = NULL; | |
308 | ||
309 | if (io) | |
310 | ioOptions = io->getOptionTree(); | |
311 | ||
312 | if (ioOptions) | |
313 | currentIOOptions->options.push_back(ioOptions); | |
314 | ||
e2a8733e | 315 | ConfigOption* result = currentIOOptions; |
316 | ||
317 | currentIOOptions = NULL; | |
318 | ||
319 | return result; | |
b9ae18aa | 320 | } |
321 | ||
322 | void | |
323 | CossSwapDir::init() | |
324 | { | |
325 | /* FIXME: SwapDirs aren't refcounted. We call IORequestor calls, which | |
326 | * are refcounted. SO, we up our count once to avoid implicit delete's. | |
327 | */ | |
328 | RefCountReference(); | |
329 | io->init(); | |
330 | openLog(); | |
331 | storeCossDirRebuild(this); | |
c8f4eac4 | 332 | theFile = io->newFile(stripePath()); |
b9ae18aa | 333 | theFile->open(O_RDWR | O_CREAT, 0644, this); |
62e76326 | 334 | |
b9ae18aa | 335 | ++n_coss_dirs; |
1a224843 | 336 | /* |
337 | * fs.blksize is normally determined by calling statvfs() etc, | |
338 | * but we just set it here. It is used in accounting the | |
339 | * total store size, and is reported in cachemgr 'storedir' | |
340 | * page. | |
341 | */ | |
342 | fs.blksize = 1 << blksz_bits; | |
cd748f27 | 343 | } |
344 | ||
6a566b9c | 345 | void |
d3b3ab85 | 346 | storeCossRemove(CossSwapDir * sd, StoreEntry * e) |
6a566b9c | 347 | { |
e6ccf245 | 348 | CossIndexNode *coss_node = (CossIndexNode *)e->repl.data; |
6a566b9c | 349 | e->repl.data = NULL; |
d3b3ab85 | 350 | dlinkDelete(&coss_node->node, &sd->cossindex); |
ce567495 | 351 | coss_index_pool->freeOne(coss_node); |
d3b3ab85 | 352 | sd->count -= 1; |
6a566b9c | 353 | } |
354 | ||
355 | void | |
d3b3ab85 | 356 | storeCossAdd(CossSwapDir * sd, StoreEntry * e) |
6a566b9c | 357 | { |
b001e822 | 358 | CossIndexNode *coss_node = (CossIndexNode *)coss_index_pool->alloc(); |
6a566b9c | 359 | assert(!e->repl.data); |
360 | e->repl.data = coss_node; | |
d3b3ab85 | 361 | dlinkAdd(e, &coss_node->node, &sd->cossindex); |
362 | sd->count += 1; | |
6a566b9c | 363 | } |
364 | ||
365 | static void | |
366 | storeCossRebuildComplete(void *data) | |
367 | { | |
e6ccf245 | 368 | RebuildState *rb = (RebuildState *)data; |
d3b3ab85 | 369 | CossSwapDir *sd = rb->sd; |
b9ae18aa | 370 | sd->startMembuf(); |
bef81ea5 | 371 | StoreController::store_dirs_rebuilding--; |
6a566b9c | 372 | storeCossDirCloseTmpSwapLog(rb->sd); |
373 | storeRebuildComplete(&rb->counts); | |
374 | cbdataFree(rb); | |
375 | } | |
376 | ||
cd748f27 | 377 | static void |
378 | storeCossRebuildFromSwapLog(void *data) | |
379 | { | |
e6ccf245 | 380 | RebuildState *rb = (RebuildState *)data; |
cd748f27 | 381 | StoreEntry *e = NULL; |
51ee7c82 | 382 | StoreSwapLogData s; |
383 | size_t ss = sizeof(StoreSwapLogData); | |
cd748f27 | 384 | double x; |
385 | assert(rb != NULL); | |
386 | /* load a number of objects per invocation */ | |
62e76326 | 387 | |
d3b3ab85 | 388 | for (int aCount = 0; aCount < rb->speed; aCount++) { |
62e76326 | 389 | if (fread(&s, ss, 1, rb->log) != 1) { |
bf8fe701 | 390 | debugs(47, 1, "Done reading " << rb->sd->path << " swaplog (" << rb->n_read << " entries)"); |
62e76326 | 391 | fclose(rb->log); |
392 | rb->log = NULL; | |
393 | storeCossRebuildComplete(rb); | |
394 | return; | |
395 | } | |
396 | ||
397 | rb->n_read++; | |
398 | ||
399 | if (s.op <= SWAP_LOG_NOP) | |
400 | continue; | |
401 | ||
402 | if (s.op >= SWAP_LOG_MAX) | |
403 | continue; | |
404 | ||
bf8fe701 | 405 | debugs(47, 3, "storeCossRebuildFromSwapLog: " << |
406 | swap_log_op_str[(int) s.op] << " " << storeKeyText(s.key) << | |
407 | " "<< std::setfill('0') << std::hex << std::uppercase << | |
408 | std::setw(8) << s.swap_filen); | |
62e76326 | 409 | |
410 | if (s.op == SWAP_LOG_ADD) { | |
411 | (void) 0; | |
412 | } else if (s.op == SWAP_LOG_DEL) { | |
413 | /* Delete unless we already have a newer copy */ | |
414 | ||
c8f4eac4 | 415 | if ((e = rb->sd->get |
416 | (s.key)) != NULL && s.lastref > e->lastref) { | |
62e76326 | 417 | /* |
418 | * Make sure we don't unlink the file, it might be | |
419 | * in use by a subsequent entry. Also note that | |
39c1e1d9 DK |
420 | * we don't have to subtract from cur_size because |
421 | * adding to cur_size happens in the cleanup procedure. | |
62e76326 | 422 | */ |
d88e3c49 | 423 | e->expireNow(); |
424 | e->releaseRequest(); | |
62e76326 | 425 | |
426 | if (e->swap_filen > -1) { | |
427 | e->swap_filen = -1; | |
428 | } | |
429 | ||
5f33b71d | 430 | e->release(); |
62e76326 | 431 | /* Fake an unlink here, this is a bad hack :( */ |
432 | storeCossRemove(rb->sd, e); | |
433 | rb->counts.objcount--; | |
434 | rb->counts.cancelcount++; | |
26ac0430 AJ |
435 | } |
436 | continue; | |
62e76326 | 437 | } else { |
411c6ea3 | 438 | x = log(static_cast<double>(++rb->counts.bad_log_op)) / log(10.0); |
62e76326 | 439 | |
411c6ea3 | 440 | if (0.0 == x - (double) |
441 | (int) x) | |
bf8fe701 | 442 | debugs(47, 1, "WARNING: " << rb->counts.bad_log_op << " invalid swap log entries found"); |
62e76326 | 443 | |
444 | rb->counts.invalid++; | |
445 | ||
446 | continue; | |
447 | } | |
448 | ||
449 | if ((++rb->counts.scancount & 0xFFF) == 0) { | |
450 | ||
451 | struct stat sb; | |
452 | ||
453 | if (0 == fstat(fileno(rb->log), &sb)) | |
454 | storeRebuildProgress(rb->sd->index, | |
455 | (int) sb.st_size / ss, rb->n_read); | |
456 | } | |
457 | ||
458 | if (EBIT_TEST(s.flags, KEY_PRIVATE)) { | |
459 | rb->counts.badflags++; | |
460 | continue; | |
461 | } | |
462 | ||
c8f4eac4 | 463 | e = rb->sd->get |
464 | (s.key); | |
62e76326 | 465 | |
466 | if (e) { | |
467 | /* key already exists, current entry is newer */ | |
468 | /* keep old, ignore new */ | |
469 | rb->counts.dupcount++; | |
470 | continue; | |
471 | } | |
472 | ||
62e76326 | 473 | rb->counts.objcount++; |
474 | ||
a86ff82a | 475 | e = rb->sd->addDiskRestore(s.key, |
9199139f AR |
476 | s.swap_filen, |
477 | s.swap_file_sz, | |
478 | s.expires, | |
479 | s.timestamp, | |
480 | s.lastref, | |
481 | s.lastmod, | |
482 | s.refcount, | |
483 | s.flags, | |
484 | (int) rb->flags.clean); | |
62e76326 | 485 | |
486 | storeDirSwapLog(e, SWAP_LOG_ADD); | |
cd748f27 | 487 | } |
62e76326 | 488 | |
cd748f27 | 489 | eventAdd("storeCossRebuild", storeCossRebuildFromSwapLog, rb, 0.0, 1); |
490 | } | |
491 | ||
492 | /* Add a new object to the cache with empty memory copy and pointer to disk | |
493 | * use to rebuild store from disk. */ | |
a86ff82a DK |
494 | StoreEntry * |
495 | CossSwapDir::addDiskRestore(const cache_key *const key, | |
9199139f AR |
496 | int file_number, |
497 | uint64_t swap_file_sz, | |
498 | time_t expires, | |
499 | time_t timestamp, | |
500 | time_t lastref, | |
501 | time_t lastmod, | |
502 | uint32_t refcount, | |
503 | uint16_t flags, | |
504 | int clean) | |
cd748f27 | 505 | { |
506 | StoreEntry *e = NULL; | |
bf8fe701 | 507 | debugs(47, 5, "storeCossAddDiskRestore: " << storeKeyText(key) << |
508 | ", fileno="<< std::setfill('0') << std::hex << std::uppercase << | |
509 | std::setw(8) << file_number); | |
510 | ||
62e76326 | 511 | /* if you call this you'd better be sure file_number is not |
cd748f27 | 512 | * already in use! */ |
c8f4eac4 | 513 | e = new StoreEntry(); |
cd748f27 | 514 | e->store_status = STORE_OK; |
a86ff82a | 515 | e->swap_dirn = index; |
3900307b | 516 | e->setMemStatus(NOT_IN_MEMORY); |
cd748f27 | 517 | e->swap_status = SWAPOUT_DONE; |
518 | e->swap_filen = file_number; | |
519 | e->swap_file_sz = swap_file_sz; | |
520 | e->lock_count = 0; | |
cd748f27 | 521 | e->lastref = lastref; |
522 | e->timestamp = timestamp; | |
523 | e->expires = expires; | |
524 | e->lastmod = lastmod; | |
525 | e->refcount = refcount; | |
526 | e->flags = flags; | |
527 | EBIT_SET(e->flags, ENTRY_CACHABLE); | |
528 | EBIT_CLR(e->flags, RELEASE_REQUEST); | |
529 | EBIT_CLR(e->flags, KEY_PRIVATE); | |
530 | e->ping_status = PING_NONE; | |
531 | EBIT_CLR(e->flags, ENTRY_VALIDATED); | |
a86ff82a DK |
532 | cur_size += fs.blksize * sizeInBlocks(e->swap_file_sz); |
533 | ++n_disk_objects; | |
3fba691e | 534 | e->hashInsert(key); /* do it after we clear KEY_PRIVATE */ |
a86ff82a | 535 | storeCossAdd(this, e); |
1a224843 | 536 | assert(e->swap_filen >= 0); |
cd748f27 | 537 | return e; |
538 | } | |
539 | ||
28c60158 | 540 | CBDATA_TYPE(RebuildState); |
cd748f27 | 541 | static void |
d3b3ab85 | 542 | storeCossDirRebuild(CossSwapDir * sd) |
cd748f27 | 543 | { |
28c60158 | 544 | RebuildState *rb; |
cd748f27 | 545 | int clean = 0; |
546 | int zero = 0; | |
547 | FILE *fp; | |
28c60158 | 548 | CBDATA_INIT_TYPE(RebuildState); |
72711e31 | 549 | rb = cbdataAlloc(RebuildState); |
cd748f27 | 550 | rb->sd = sd; |
551 | rb->speed = opt_foreground_rebuild ? 1 << 30 : 50; | |
6a566b9c | 552 | rb->flags.clean = (unsigned int) clean; |
cd748f27 | 553 | /* |
554 | * If the swap.state file exists in the cache_dir, then | |
555 | * we'll use storeCossRebuildFromSwapLog(). | |
556 | */ | |
557 | fp = storeCossDirOpenTmpSwapLog(sd, &clean, &zero); | |
bf8fe701 | 558 | debugs(47, 1, "Rebuilding COSS storage in " << sd->path << " (" << (clean ? "CLEAN" : "DIRTY") << ")"); |
6a566b9c | 559 | rb->log = fp; |
bef81ea5 | 560 | StoreController::store_dirs_rebuilding++; |
62e76326 | 561 | |
cd748f27 | 562 | if (!clean || fp == NULL) { |
62e76326 | 563 | /* COSS cannot yet rebuild from a dirty state. If the log |
564 | * is dirty then the COSS contents is thrown away. | |
565 | * Why? I guess it is because some contents will be lost, | |
566 | * and COSS cannot verify this.. | |
567 | */ | |
568 | ||
569 | if (fp != NULL) | |
570 | fclose(fp); | |
571 | ||
572 | /* | |
573 | * XXX Make sure we don't trigger an assertion if this is the first | |
574 | * storedir, since if we are, this call will cause storeRebuildComplete | |
575 | * to prematurely complete the rebuild process, and then some other | |
576 | * storedir will try to rebuild and eventually die. | |
577 | */ | |
578 | eventAdd("storeCossRebuildComplete", storeCossRebuildComplete, rb, 0.0, 0); | |
579 | ||
580 | return; | |
cd748f27 | 581 | } |
62e76326 | 582 | |
c8f4eac4 | 583 | eventAdd("storeCossRebuild", storeCossRebuildFromSwapLog, rb, 0.0, 1); |
cd748f27 | 584 | } |
585 | ||
586 | static void | |
d3b3ab85 | 587 | storeCossDirCloseTmpSwapLog(CossSwapDir * sd) |
cd748f27 | 588 | { |
cd748f27 | 589 | char *swaplog_path = xstrdup(storeCossDirSwapLogFile(sd, NULL)); |
590 | char *new_path = xstrdup(storeCossDirSwapLogFile(sd, ".new")); | |
d3b3ab85 | 591 | int anfd; |
592 | file_close(sd->swaplog_fd); | |
62e76326 | 593 | |
cd748f27 | 594 | if (xrename(new_path, swaplog_path) < 0) { |
62e76326 | 595 | fatal("storeCossDirCloseTmpSwapLog: rename failed"); |
cd748f27 | 596 | } |
62e76326 | 597 | |
d3b3ab85 | 598 | anfd = file_open(swaplog_path, O_WRONLY | O_CREAT | O_BINARY); |
62e76326 | 599 | |
d3b3ab85 | 600 | if (anfd < 0) { |
bf8fe701 | 601 | debugs(50, 1, "" << swaplog_path << ": " << xstrerror()); |
62e76326 | 602 | fatal("storeCossDirCloseTmpSwapLog: Failed to open swap log."); |
cd748f27 | 603 | } |
62e76326 | 604 | |
cd748f27 | 605 | safe_free(swaplog_path); |
606 | safe_free(new_path); | |
d3b3ab85 | 607 | sd->swaplog_fd = anfd; |
bf8fe701 | 608 | debugs(47, 3, "Cache COSS Dir #" << sd->index << " log opened on FD " << anfd); |
cd748f27 | 609 | } |
610 | ||
611 | static FILE * | |
d3b3ab85 | 612 | storeCossDirOpenTmpSwapLog(CossSwapDir * sd, int *clean_flag, int *zero_flag) |
cd748f27 | 613 | { |
cd748f27 | 614 | char *swaplog_path = xstrdup(storeCossDirSwapLogFile(sd, NULL)); |
615 | char *clean_path = xstrdup(storeCossDirSwapLogFile(sd, ".last-clean")); | |
616 | char *new_path = xstrdup(storeCossDirSwapLogFile(sd, ".new")); | |
62e76326 | 617 | |
cd748f27 | 618 | struct stat log_sb; |
62e76326 | 619 | |
cd748f27 | 620 | struct stat clean_sb; |
621 | FILE *fp; | |
d3b3ab85 | 622 | int anfd; |
62e76326 | 623 | |
c8f4eac4 | 624 | if (::stat(swaplog_path, &log_sb) < 0) { |
bf8fe701 | 625 | debugs(50, 1, "Cache COSS Dir #" << sd->index << ": No log file"); |
62e76326 | 626 | safe_free(swaplog_path); |
627 | safe_free(clean_path); | |
628 | safe_free(new_path); | |
629 | return NULL; | |
cd748f27 | 630 | } |
62e76326 | 631 | |
cd748f27 | 632 | *zero_flag = log_sb.st_size == 0 ? 1 : 0; |
633 | /* close the existing write-only FD */ | |
62e76326 | 634 | |
d3b3ab85 | 635 | if (sd->swaplog_fd >= 0) |
62e76326 | 636 | file_close(sd->swaplog_fd); |
637 | ||
cd748f27 | 638 | /* open a write-only FD for the new log */ |
d3b3ab85 | 639 | anfd = file_open(new_path, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY); |
62e76326 | 640 | |
d3b3ab85 | 641 | if (anfd < 0) { |
bf8fe701 | 642 | debugs(50, 1, "" << new_path << ": " << xstrerror()); |
62e76326 | 643 | fatal("storeDirOpenTmpSwapLog: Failed to open swap log."); |
cd748f27 | 644 | } |
62e76326 | 645 | |
d3b3ab85 | 646 | sd->swaplog_fd = anfd; |
cd748f27 | 647 | /* open a read-only stream of the old log */ |
3d37fe17 | 648 | fp = fopen(swaplog_path, "rb"); |
62e76326 | 649 | |
cd748f27 | 650 | if (fp == NULL) { |
bf8fe701 | 651 | debugs(50, 0, "" << swaplog_path << ": " << xstrerror()); |
62e76326 | 652 | fatal("Failed to open swap log for reading"); |
cd748f27 | 653 | } |
62e76326 | 654 | |
cd748f27 | 655 | memset(&clean_sb, '\0', sizeof(struct stat)); |
62e76326 | 656 | |
c8f4eac4 | 657 | if (::stat(clean_path, &clean_sb) < 0) |
62e76326 | 658 | *clean_flag = 0; |
cd748f27 | 659 | else if (clean_sb.st_mtime < log_sb.st_mtime) |
62e76326 | 660 | *clean_flag = 0; |
cd748f27 | 661 | else |
62e76326 | 662 | *clean_flag = 1; |
663 | ||
cd748f27 | 664 | safeunlink(clean_path, 1); |
62e76326 | 665 | |
cd748f27 | 666 | safe_free(swaplog_path); |
62e76326 | 667 | |
cd748f27 | 668 | safe_free(clean_path); |
62e76326 | 669 | |
cd748f27 | 670 | safe_free(new_path); |
62e76326 | 671 | |
cd748f27 | 672 | return fp; |
673 | } | |
674 | ||
62e76326 | 675 | class CossCleanLog : public SwapDir::CleanLog |
676 | { | |
677 | ||
678 | public: | |
b9ae18aa | 679 | CossCleanLog(CossSwapDir *); |
d3b3ab85 | 680 | virtual const StoreEntry *nextEntry(); |
681 | virtual void write(StoreEntry const &); | |
cd748f27 | 682 | char *cur; |
e6ccf245 | 683 | char *newLog; |
cd748f27 | 684 | char *cln; |
685 | char *outbuf; | |
686 | off_t outbuf_offset; | |
687 | int fd; | |
6a566b9c | 688 | dlink_node *current; |
b9ae18aa | 689 | CossSwapDir *sd; |
cd748f27 | 690 | }; |
691 | ||
692 | #define CLEAN_BUF_SZ 16384 | |
d3b3ab85 | 693 | |
b9ae18aa | 694 | CossCleanLog::CossCleanLog(CossSwapDir *aSwapDir) : cur(NULL),newLog(NULL),cln(NULL),outbuf(NULL), |
62e76326 | 695 | outbuf_offset(0), fd(-1),current(NULL), sd(aSwapDir) |
696 | {} | |
d3b3ab85 | 697 | |
cd748f27 | 698 | /* |
699 | * Begin the process to write clean cache state. For COSS this means | |
700 | * opening some log files and allocating write buffers. Return 0 if | |
701 | * we succeed, and assign the 'func' and 'data' return pointers. | |
702 | */ | |
d3b3ab85 | 703 | int |
704 | CossSwapDir::writeCleanStart() | |
cd748f27 | 705 | { |
d3b3ab85 | 706 | CossCleanLog *state = new CossCleanLog(this); |
1f56cfef | 707 | #if HAVE_FCHMOD |
62e76326 | 708 | |
cd748f27 | 709 | struct stat sb; |
1f56cfef | 710 | #endif |
62e76326 | 711 | |
d3b3ab85 | 712 | state->newLog = xstrdup(storeCossDirSwapLogFile(this, ".clean")); |
e6ccf245 | 713 | state->fd = file_open(state->newLog, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY); |
d3b3ab85 | 714 | cleanLog = NULL; |
62e76326 | 715 | |
81928dfe | 716 | if (state->fd < 0) { |
62e76326 | 717 | xfree(state->newLog); |
718 | delete state; | |
719 | return -1; | |
81928dfe | 720 | } |
62e76326 | 721 | |
d3b3ab85 | 722 | state->cur = xstrdup(storeCossDirSwapLogFile(this, NULL)); |
723 | state->cln = xstrdup(storeCossDirSwapLogFile(this, ".last-clean")); | |
e6ccf245 | 724 | state->outbuf = (char *)xcalloc(CLEAN_BUF_SZ, 1); |
cd748f27 | 725 | state->outbuf_offset = 0; |
d3b3ab85 | 726 | ::unlink(state->cln); |
727 | state->current = cossindex.tail; | |
bf8fe701 | 728 | debugs(50, 3, "storeCOssDirWriteCleanLogs: opened " << state->newLog << ", FD " << state->fd); |
cd748f27 | 729 | #if HAVE_FCHMOD |
62e76326 | 730 | |
c8f4eac4 | 731 | if (::stat(state->cur, &sb) == 0) |
62e76326 | 732 | fchmod(state->fd, sb.st_mode); |
733 | ||
cd748f27 | 734 | #endif |
62e76326 | 735 | |
d3b3ab85 | 736 | cleanLog = state; |
6a566b9c | 737 | |
cd748f27 | 738 | return 0; |
739 | } | |
740 | ||
c8f4eac4 | 741 | /* RBC 20050101 - I think there is a race condition here, |
742 | * *current can be freed as its not ref counted, if/when | |
26ac0430 | 743 | * the store overruns the log writer |
c8f4eac4 | 744 | */ |
d3b3ab85 | 745 | const StoreEntry * |
746 | CossCleanLog::nextEntry() | |
6a566b9c | 747 | { |
6a566b9c | 748 | const StoreEntry *entry; |
62e76326 | 749 | |
d3b3ab85 | 750 | if (!current) |
62e76326 | 751 | return NULL; |
752 | ||
d3b3ab85 | 753 | entry = (const StoreEntry *) current->data; |
62e76326 | 754 | |
d3b3ab85 | 755 | current = current->prev; |
62e76326 | 756 | |
6a566b9c | 757 | return entry; |
758 | } | |
759 | ||
cd748f27 | 760 | /* |
761 | * "write" an entry to the clean log file. | |
762 | */ | |
d3b3ab85 | 763 | void |
764 | CossCleanLog::write(StoreEntry const &e) | |
cd748f27 | 765 | { |
d3b3ab85 | 766 | CossCleanLog *state = this; |
51ee7c82 | 767 | StoreSwapLogData s; |
768 | static size_t ss = sizeof(StoreSwapLogData); | |
cd748f27 | 769 | s.op = (char) SWAP_LOG_ADD; |
d3b3ab85 | 770 | s.swap_filen = e.swap_filen; |
771 | s.timestamp = e.timestamp; | |
772 | s.lastref = e.lastref; | |
773 | s.expires = e.expires; | |
774 | s.lastmod = e.lastmod; | |
775 | s.swap_file_sz = e.swap_file_sz; | |
776 | s.refcount = e.refcount; | |
777 | s.flags = e.flags; | |
41d00cd3 AJ |
778 | memcpy(&s.key, e.key, SQUID_MD5_DIGEST_LENGTH); |
779 | memcpy(outbuf + outbuf_offset, &s, ss); | |
b9ae18aa | 780 | outbuf_offset += ss; |
cd748f27 | 781 | /* buffered write */ |
62e76326 | 782 | |
b9ae18aa | 783 | if (outbuf_offset + ss > CLEAN_BUF_SZ) { |
784 | if (FD_WRITE_METHOD(fd, outbuf, outbuf_offset) < 0) { | |
bf8fe701 | 785 | debugs(50, 0, "storeCossDirWriteCleanLogs: " << newLog << ": write: " << xstrerror()); |
786 | debugs(50, 0, "storeCossDirWriteCleanLogs: Current swap logfile not replaced."); | |
b9ae18aa | 787 | file_close(fd); |
788 | fd = -1; | |
789 | unlink(newLog); | |
62e76326 | 790 | sd->cleanLog = NULL; |
b9ae18aa | 791 | delete state; |
62e76326 | 792 | return; |
793 | } | |
794 | ||
b9ae18aa | 795 | outbuf_offset = 0; |
cd748f27 | 796 | } |
797 | } | |
798 | ||
d3b3ab85 | 799 | void |
800 | CossSwapDir::writeCleanDone() | |
cd748f27 | 801 | { |
d3b3ab85 | 802 | CossCleanLog *state = (CossCleanLog *)cleanLog; |
62e76326 | 803 | |
a7d542ee | 804 | if (NULL == state) |
62e76326 | 805 | return; |
806 | ||
cd748f27 | 807 | if (state->fd < 0) |
62e76326 | 808 | return; |
809 | ||
d0ef8ea8 | 810 | if (FD_WRITE_METHOD(state->fd, state->outbuf, state->outbuf_offset) < 0) { |
bf8fe701 | 811 | debugs(50, 0, "storeCossDirWriteCleanLogs: " << state->newLog << ": write: " << xstrerror()); |
812 | debugs(50, 0, "storeCossDirWriteCleanLogs: Current swap logfile not replaced."); | |
62e76326 | 813 | file_close(state->fd); |
814 | state->fd = -1; | |
815 | ::unlink(state->newLog); | |
cd748f27 | 816 | } |
62e76326 | 817 | |
cd748f27 | 818 | safe_free(state->outbuf); |
819 | /* | |
820 | * You can't rename open files on Microsoft "operating systems" | |
821 | * so we have to close before renaming. | |
822 | */ | |
d3b3ab85 | 823 | closeLog(); |
3d37fe17 | 824 | /* save the fd value for a later test */ |
d3b3ab85 | 825 | int anfd = state->fd; |
cd748f27 | 826 | /* rename */ |
62e76326 | 827 | |
cd748f27 | 828 | if (state->fd >= 0) { |
be266cb2 | 829 | #if _SQUID_OS2_ || _SQUID_WINDOWS_ |
62e76326 | 830 | file_close(state->fd); |
831 | state->fd = -1; | |
cd748f27 | 832 | #endif |
62e76326 | 833 | |
834 | xrename(state->newLog, state->cur); | |
cd748f27 | 835 | } |
62e76326 | 836 | |
cd748f27 | 837 | /* touch a timestamp file if we're not still validating */ |
bef81ea5 | 838 | if (StoreController::store_dirs_rebuilding) |
62e76326 | 839 | (void) 0; |
d3b3ab85 | 840 | else if (anfd < 0) |
62e76326 | 841 | (void) 0; |
cd748f27 | 842 | else |
62e76326 | 843 | file_close(file_open(state->cln, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY)); |
844 | ||
cd748f27 | 845 | /* close */ |
846 | safe_free(state->cur); | |
62e76326 | 847 | |
e6ccf245 | 848 | safe_free(state->newLog); |
62e76326 | 849 | |
cd748f27 | 850 | safe_free(state->cln); |
62e76326 | 851 | |
cd748f27 | 852 | if (state->fd >= 0) |
62e76326 | 853 | file_close(state->fd); |
854 | ||
cd748f27 | 855 | state->fd = -1; |
62e76326 | 856 | |
d3b3ab85 | 857 | delete state; |
62e76326 | 858 | |
d3b3ab85 | 859 | cleanLog = NULL; |
cd748f27 | 860 | } |
861 | ||
061c7171 | 862 | static void |
863 | FreeObject(void *address) | |
864 | { | |
865 | StoreSwapLogData *anObject = static_cast <StoreSwapLogData *>(address); | |
866 | delete anObject; | |
867 | } | |
868 | ||
d3b3ab85 | 869 | void |
870 | CossSwapDir::logEntry(const StoreEntry & e, int op) const | |
cd748f27 | 871 | { |
51ee7c82 | 872 | StoreSwapLogData *s = new StoreSwapLogData; |
cd748f27 | 873 | s->op = (char) op; |
d3b3ab85 | 874 | s->swap_filen = e.swap_filen; |
875 | s->timestamp = e.timestamp; | |
876 | s->lastref = e.lastref; | |
877 | s->expires = e.expires; | |
878 | s->lastmod = e.lastmod; | |
879 | s->swap_file_sz = e.swap_file_sz; | |
880 | s->refcount = e.refcount; | |
881 | s->flags = e.flags; | |
41d00cd3 | 882 | memcpy(s->key, e.key, SQUID_MD5_DIGEST_LENGTH); |
d3b3ab85 | 883 | file_write(swaplog_fd, |
62e76326 | 884 | -1, |
885 | s, | |
51ee7c82 | 886 | sizeof(StoreSwapLogData), |
62e76326 | 887 | NULL, |
888 | NULL, | |
061c7171 | 889 | &FreeObject); |
cd748f27 | 890 | } |
891 | ||
d3b3ab85 | 892 | void |
c8f4eac4 | 893 | CossSwapDir::create() |
cd748f27 | 894 | { |
c8f4eac4 | 895 | debugs (47, 3, "Creating swap space in " << path); |
896 | ||
897 | struct stat swap_sb; | |
898 | int swap; | |
899 | ||
900 | if (::stat(path, &swap_sb) < 0) { | |
901 | debugs (47, 2, "COSS swap space space being allocated."); | |
1191b93b | 902 | #if _SQUID_MSWIN_ |
7be3caf3 | 903 | |
904 | mkdir(path); | |
905 | #else | |
906 | ||
c8f4eac4 | 907 | mkdir(path, 0700); |
7be3caf3 | 908 | #endif |
909 | ||
c8f4eac4 | 910 | } |
911 | ||
912 | /* should check here for directories instead of files, and for file size | |
913 | * TODO - if nothing changes, there is nothing to do | |
914 | */ | |
915 | swap = open(stripePath(), O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0600); | |
916 | ||
917 | /* TODO just set the file size */ | |
cc34568d DK |
918 | char block[1024]; |
919 | Must(maxSize() % sizeof(block) == 0); | |
920 | memset(block, '\0', sizeof(block)); | |
c8f4eac4 | 921 | |
cc34568d DK |
922 | for (uint64_t offset = 0; offset < maxSize(); offset += sizeof(block)) { |
923 | if (write (swap, block, sizeof(block)) != sizeof(block)) { | |
c8f4eac4 | 924 | debugs (47, 0, "Failed to create COSS swap space in " << path); |
925 | } | |
926 | } | |
927 | ||
928 | close (swap); | |
929 | ||
cd748f27 | 930 | } |
931 | ||
a4b8110e | 932 | /* we are shutting down, flush all membufs to disk */ |
d3b3ab85 | 933 | CossSwapDir::~CossSwapDir() |
cd748f27 | 934 | { |
b9ae18aa | 935 | io->sync(); |
c8f4eac4 | 936 | |
937 | if (theFile != NULL) | |
938 | theFile->close(); | |
939 | ||
b9ae18aa | 940 | delete io; |
cd748f27 | 941 | |
d3b3ab85 | 942 | closeLog(); |
c8f4eac4 | 943 | |
cd748f27 | 944 | n_coss_dirs--; |
c8f4eac4 | 945 | |
b9ae18aa | 946 | safe_free(ioModule); |
c8f4eac4 | 947 | |
948 | safe_free(stripe_path); | |
cd748f27 | 949 | } |
950 | ||
aa1a691e AR |
951 | bool |
952 | CossSwapDir::canStore(const StoreEntry &e, int64_t diskSpaceNeeded, int &load) const | |
cd748f27 | 953 | { |
aa1a691e AR |
954 | if (!SwapDir::canStore(e, diskSpaceNeeded, load)) |
955 | return false; | |
0dbabb56 | 956 | |
aa1a691e AR |
957 | load = io->load(); |
958 | return true; | |
cd748f27 | 959 | } |
a4b8110e | 960 | |
0e23343f | 961 | /* |
962 | * storeCossDirCallback - do the IO completions | |
963 | */ | |
d3b3ab85 | 964 | int |
965 | CossSwapDir::callback() | |
0e23343f | 966 | { |
b9ae18aa | 967 | return io->callback(); |
0e23343f | 968 | } |
969 | ||
cd748f27 | 970 | /* ========== LOCAL FUNCTIONS ABOVE, GLOBAL FUNCTIONS BELOW ========== */ |
971 | ||
d3b3ab85 | 972 | void |
973 | CossSwapDir::statfs(StoreEntry & sentry) const | |
cd748f27 | 974 | { |
d3b3ab85 | 975 | storeAppendPrintf(&sentry, "\n"); |
cc34568d DK |
976 | storeAppendPrintf(&sentry, "Maximum Size: %"PRIu64" KB\n", maxSize() >> 10); |
977 | storeAppendPrintf(&sentry, "Current Size: %.2f KB\n", currentSize() / 1024.0); | |
d3b3ab85 | 978 | storeAppendPrintf(&sentry, "Percent Used: %0.2f%%\n", |
cc34568d | 979 | Math::doublePercent(currentSize(), maxSize()) ); |
d3b3ab85 | 980 | storeAppendPrintf(&sentry, "Number of object collisions: %d\n", (int) numcollisions); |
cd748f27 | 981 | #if 0 |
982 | /* is this applicable? I Hope not .. */ | |
983 | storeAppendPrintf(sentry, "Filemap bits in use: %d of %d (%d%%)\n", | |
75f8f9a2 FC |
984 | SD->map->numFilesInMap(), SD->map->capacity(), |
985 | Math::intPercent(SD->map->numFilesInMap(), SD->map->capacity())); | |
cd748f27 | 986 | #endif |
62e76326 | 987 | |
b9ae18aa | 988 | // storeAppendPrintf(&sentry, "Pending operations: %d out of %d\n", io->aq.aq_numpending, MAX_ASYNCOP); |
d3b3ab85 | 989 | storeAppendPrintf(&sentry, "Flags:"); |
62e76326 | 990 | |
d3b3ab85 | 991 | if (flags.selected) |
62e76326 | 992 | storeAppendPrintf(&sentry, " SELECTED"); |
993 | ||
d3b3ab85 | 994 | if (flags.read_only) |
62e76326 | 995 | storeAppendPrintf(&sentry, " READ-ONLY"); |
996 | ||
d3b3ab85 | 997 | storeAppendPrintf(&sentry, "\n"); |
cd748f27 | 998 | } |
999 | ||
d3b3ab85 | 1000 | void |
1001 | CossSwapDir::parse(int anIndex, char *aPath) | |
cd748f27 | 1002 | { |
cc34568d DK |
1003 | const int i = GetInteger(); |
1004 | if (i <= 0) | |
62e76326 | 1005 | fatal("storeCossDirParse: invalid size value"); |
cd748f27 | 1006 | |
d3b3ab85 | 1007 | index = anIndex; |
62e76326 | 1008 | |
d3b3ab85 | 1009 | path = xstrdup(aPath); |
62e76326 | 1010 | |
a0a5b161 | 1011 | max_size = static_cast<uint64_t>(i) << 20; // MBytes to Bytes |
d3b3ab85 | 1012 | |
450e0c10 | 1013 | parseOptions(0); |
1014 | ||
26ac0430 | 1015 | if (NULL == io) |
b7717b61 | 1016 | changeIO(DiskIOModule::FindDefault()); |
1017 | ||
c94af0b9 | 1018 | /* Enforce maxobjsize being set to something */ |
d3b3ab85 | 1019 | if (max_objsize == -1) |
62e76326 | 1020 | fatal("COSS requires max-size to be set to something other than -1!\n"); |
1a224843 | 1021 | |
1022 | if (max_objsize > COSS_MEMBUF_SZ) | |
1023 | fatalf("COSS max-size option must be less than COSS_MEMBUF_SZ (%d)\n", | |
1024 | COSS_MEMBUF_SZ); | |
1025 | ||
051dedf9 AR |
1026 | // check that we won't overflow sfileno later. |
1027 | const uint64_t max_offset = (uint64_t)SwapFilenMax << blksz_bits; | |
1a224843 | 1028 | |
cc34568d | 1029 | if (maxSize() > max_offset) { |
bf8fe701 | 1030 | debugs(47, 0, "COSS block-size = " << (1<<blksz_bits) << " bytes"); |
4989878c | 1031 | debugs(47,0, "COSS largest file offset = " << (max_offset >> 10) << " KB"); |
cc34568d | 1032 | debugs(47, 0, "COSS cache_dir size = " << (maxSize() >> 10) << " KB"); |
1a224843 | 1033 | fatal("COSS cache_dir size exceeds largest offset\n"); |
1034 | } | |
cd748f27 | 1035 | } |
1036 | ||
1037 | ||
d3b3ab85 | 1038 | void |
c6059970 | 1039 | CossSwapDir::reconfigure() |
cd748f27 | 1040 | { |
cc34568d DK |
1041 | const int i = GetInteger(); |
1042 | if (i <= 0) | |
62e76326 | 1043 | fatal("storeCossDirParse: invalid size value"); |
cd748f27 | 1044 | |
a0a5b161 | 1045 | const uint64_t size = static_cast<uint64_t>(i) << 20; // MBytes to Bytes |
cc34568d DK |
1046 | |
1047 | if (size == maxSize()) | |
1048 | debugs(3, 1, "Cache COSS dir '" << path << "' size remains unchanged at " << i << " MB"); | |
cd748f27 | 1049 | else { |
cc34568d | 1050 | debugs(3, 1, "Cache COSS dir '" << path << "' size changed to " << i << " MB"); |
62e76326 | 1051 | max_size = size; |
cd748f27 | 1052 | } |
62e76326 | 1053 | |
c94af0b9 | 1054 | /* Enforce maxobjsize being set to something */ |
d3b3ab85 | 1055 | if (max_objsize == -1) |
62e76326 | 1056 | fatal("COSS requires max-size to be set to something other than -1!\n"); |
cd748f27 | 1057 | } |
1058 | ||
da9d3191 DK |
1059 | void |
1060 | CossSwapDir::swappedOut(const StoreEntry &e) | |
1061 | { | |
a86ff82a DK |
1062 | cur_size += fs.blksize * sizeInBlocks(e.swap_file_sz); |
1063 | ++n_disk_objects; | |
da9d3191 DK |
1064 | } |
1065 | ||
cd748f27 | 1066 | void |
d3b3ab85 | 1067 | CossSwapDir::dump(StoreEntry &entry)const |
cd748f27 | 1068 | { |
cc34568d | 1069 | storeAppendPrintf(&entry, " %"PRIu64, maxSize() >> 20); |
59b2d47f | 1070 | dumpOptions(&entry); |
cd748f27 | 1071 | } |
1072 | ||
a86ff82a | 1073 | CossSwapDir::CossSwapDir() : SwapDir ("coss"), swaplog_fd(-1), count(0), current_membuf (NULL), current_offset(0), numcollisions(0), blksz_bits(0), io (NULL), ioModule(NULL), currentIOOptions(new ConfigOptionVector()), stripe_path(NULL), cur_size(0), n_disk_objects(0) |
cd748f27 | 1074 | { |
1a224843 | 1075 | membufs.head = NULL; |
1076 | membufs.tail = NULL; | |
1077 | cossindex.head = NULL; | |
1078 | cossindex.tail = NULL; | |
1079 | blksz_mask = (1 << blksz_bits) - 1; | |
c8f4eac4 | 1080 | repl = NULL; |
1a224843 | 1081 | } |
a4b8110e | 1082 | |
1a224843 | 1083 | bool |
1084 | CossSwapDir::optionBlockSizeParse(const char *option, const char *value, int reconfiguring) | |
1085 | { | |
d9e04dc7 | 1086 | assert(option); |
1087 | ||
1088 | if (strcmp(option, "block-size") != 0) | |
1089 | return false; | |
1090 | ||
1091 | if (!value) | |
1092 | self_destruct(); | |
1093 | ||
1a224843 | 1094 | int blksz = atoi(value); |
62e76326 | 1095 | |
1a224843 | 1096 | if (blksz == (1 << blksz_bits)) |
1097 | /* no change */ | |
1098 | return true; | |
1099 | ||
1100 | if (reconfiguring) { | |
bf8fe701 | 1101 | debugs(47, 0, "WARNING: cannot change COSS block-size while Squid is running"); |
1a224843 | 1102 | return false; |
cd748f27 | 1103 | } |
62e76326 | 1104 | |
1a224843 | 1105 | int nbits = 0; |
1106 | int check = blksz; | |
1107 | ||
1108 | while (check > 1) { | |
1109 | nbits++; | |
1110 | check >>= 1; | |
cd748f27 | 1111 | } |
62e76326 | 1112 | |
1a224843 | 1113 | check = 1 << nbits; |
1114 | ||
1115 | if (check != blksz) | |
1116 | fatal("COSS block-size must be a power of 2\n"); | |
1117 | ||
1118 | if (nbits > 13) | |
1119 | fatal("COSS block-size must be 8192 or smaller\n"); | |
1120 | ||
1121 | blksz_bits = nbits; | |
1122 | ||
1123 | blksz_mask = (1 << blksz_bits) - 1; | |
1124 | ||
1125 | return true; | |
cd748f27 | 1126 | } |
62e76326 | 1127 | |
1a224843 | 1128 | void |
1129 | CossSwapDir::optionBlockSizeDump(StoreEntry * e) const | |
d3b3ab85 | 1130 | { |
1a224843 | 1131 | storeAppendPrintf(e, " block-size=%d", 1 << blksz_bits); |
d3b3ab85 | 1132 | } |
c8f4eac4 | 1133 | |
1134 | StoreSearch * | |
30abd221 | 1135 | CossSwapDir::search(String const url, HttpRequest *) |
c8f4eac4 | 1136 | { |
1137 | if (url.size()) | |
1138 | fatal ("Cannot search by url yet\n"); | |
1139 | ||
1140 | return new StoreSearchCoss (this); | |
1141 | } | |
1142 | ||
1143 | char const * | |
1144 | CossSwapDir::stripePath() const | |
1145 | { | |
1146 | if (!stripe_path) { | |
30abd221 | 1147 | String result = path; |
c8f4eac4 | 1148 | result.append("/stripe"); |
c1945e7d | 1149 | const_cast<CossSwapDir *>(this)->stripe_path = xstrdup(result.termedBuf()); |
c8f4eac4 | 1150 | } |
1151 | ||
1152 | return stripe_path; | |
1153 | } | |
1154 | ||
1155 | CBDATA_CLASS_INIT(StoreSearchCoss); | |
1156 | StoreSearchCoss::StoreSearchCoss(RefCount<CossSwapDir> aSwapDir) : sd(aSwapDir), callback (NULL), cbdata(NULL), _done (false), current(NULL), next_(sd->cossindex.tail) | |
1157 | { | |
1158 | /* TODO: this races with the store as does the cleanlog stuff. | |
1159 | * FIXME by making coss_nodes ref counted */ | |
1160 | } | |
1161 | ||
1162 | /* do not link | |
1163 | StoreSearchCoss::StoreSearchCoss(StoreSearchCoss const &); | |
1164 | */ | |
1165 | ||
1166 | StoreSearchCoss::~StoreSearchCoss() | |
1167 | {} | |
1168 | ||
1169 | void | |
1170 | StoreSearchCoss::next(void (callback)(void *cbdata), void *cbdata) | |
1171 | { | |
1172 | next(); | |
1173 | callback (cbdata); | |
1174 | } | |
1175 | ||
1176 | bool | |
1177 | StoreSearchCoss::next() | |
1178 | { | |
1179 | current = next_; | |
1180 | ||
1181 | if (next_) | |
1182 | next_ = next_->prev; | |
1183 | ||
1184 | if (!current) | |
1185 | _done = true; | |
1186 | ||
1187 | return current != NULL; | |
1188 | } | |
1189 | ||
1190 | bool | |
1191 | StoreSearchCoss::error() const | |
1192 | { | |
1193 | return false; | |
1194 | } | |
1195 | ||
1196 | bool | |
1197 | StoreSearchCoss::isDone() const | |
1198 | { | |
1199 | return _done; | |
1200 | } | |
1201 | ||
1202 | StoreEntry * | |
1203 | StoreSearchCoss::currentItem() | |
1204 | { | |
1205 | if (!current) | |
1206 | return NULL; | |
1207 | ||
1208 | return static_cast<StoreEntry *>( current->data ); | |
1209 | } |