]>
Commit | Line | Data |
---|---|---|
db263d62 | 1 | #error COSS Support is not stable yet in Squid-3. Please do not use. |
cd748f27 | 2 | /* |
262a0e14 | 3 | * $Id$ |
26ac0430 | 4 | * vim: set et : |
cd748f27 | 5 | * |
17bb3486 | 6 | * DEBUG: section 47 Store COSS Directory Routines |
cd748f27 | 7 | * AUTHOR: Eric Stern |
8 | * | |
2b6662ba | 9 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
cd748f27 | 10 | * ---------------------------------------------------------- |
11 | * | |
2b6662ba | 12 | * Squid is the result of efforts by numerous individuals from |
13 | * the Internet community; see the CONTRIBUTORS file for full | |
14 | * details. Many organizations have provided support for Squid's | |
15 | * development; see the SPONSORS file for full details. Squid is | |
16 | * Copyrighted (C) 2001 by the Regents of the University of | |
17 | * California; see the COPYRIGHT file for full details. Squid | |
18 | * incorporates software developed and/or copyrighted by other | |
19 | * sources; see the CREDITS file for full details. | |
cd748f27 | 20 | * |
21 | * This program is free software; you can redistribute it and/or modify | |
22 | * it under the terms of the GNU General Public License as published by | |
23 | * the Free Software Foundation; either version 2 of the License, or | |
24 | * (at your option) any later version. | |
26ac0430 | 25 | * |
cd748f27 | 26 | * This program is distributed in the hope that it will be useful, |
27 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
28 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
29 | * GNU General Public License for more details. | |
26ac0430 | 30 | * |
cd748f27 | 31 | * You should have received a copy of the GNU General Public License |
32 | * along with this program; if not, write to the Free Software | |
33 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
34 | * | |
35 | */ | |
36 | ||
37 | #include "squid.h" | |
b9ae18aa | 38 | #include "CossSwapDir.h" |
e6ccf245 | 39 | #include "Store.h" |
cd748f27 | 40 | |
41 | #include "store_coss.h" | |
a553a5a3 | 42 | #include "event.h" |
528b2c61 | 43 | #include "fde.h" |
d3b3ab85 | 44 | #include "SwapDir.h" |
51ee7c82 | 45 | #include "StoreSwapLogData.h" |
b9ae18aa | 46 | #include "DiskIO/DiskIOModule.h" |
47 | #include "DiskIO/DiskIOStrategy.h" | |
48 | #include "DiskIO/ReadRequest.h" | |
49 | #include "ConfigOption.h" | |
50 | #include "StoreFScoss.h" | |
c8f4eac4 | 51 | #include "Parsing.h" |
cd748f27 | 52 | |
53 | #define STORE_META_BUFSZ 4096 | |
54 | ||
cd748f27 | 55 | int n_coss_dirs = 0; |
56 | /* static int last_coss_pick_index = -1; */ | |
a3efa961 | 57 | MemAllocator *coss_index_pool = NULL; |
cd748f27 | 58 | |
59 | typedef struct _RebuildState RebuildState; | |
62e76326 | 60 | |
26ac0430 | 61 | struct _RebuildState { |
d3b3ab85 | 62 | CossSwapDir *sd; |
cd748f27 | 63 | int n_read; |
64 | FILE *log; | |
65 | int speed; | |
62e76326 | 66 | |
26ac0430 | 67 | struct { |
3d0ac046 HN |
68 | unsigned int clean:1; |
69 | } flags; | |
62e76326 | 70 | |
cd748f27 | 71 | struct _store_rebuild_data counts; |
72 | }; | |
73 | ||
74 | static char *storeCossDirSwapLogFile(SwapDir *, const char *); | |
75 | static EVH storeCossRebuildFromSwapLog; | |
d3b3ab85 | 76 | static StoreEntry *storeCossAddDiskRestore(CossSwapDir * SD, const cache_key * key, |
62e76326 | 77 | int file_number, |
47f6e231 | 78 | uint64_t swap_file_sz, |
62e76326 | 79 | time_t expires, |
80 | time_t timestamp, | |
81 | time_t lastref, | |
82 | time_t lastmod, | |
83 | u_int32_t refcount, | |
84 | u_int16_t flags, | |
85 | int clean); | |
d3b3ab85 | 86 | static void storeCossDirRebuild(CossSwapDir * sd); |
87 | static void storeCossDirCloseTmpSwapLog(CossSwapDir * sd); | |
88 | static FILE *storeCossDirOpenTmpSwapLog(CossSwapDir *, int *, int *); | |
cd748f27 | 89 | |
90 | static char * | |
91 | storeCossDirSwapLogFile(SwapDir * sd, const char *ext) | |
92 | { | |
93 | LOCAL_ARRAY(char, path, SQUID_MAXPATHLEN); | |
94 | LOCAL_ARRAY(char, pathtmp, SQUID_MAXPATHLEN); | |
95 | LOCAL_ARRAY(char, digit, 32); | |
96 | char *pathtmp2; | |
62e76326 | 97 | |
cd748f27 | 98 | if (Config.Log.swap) { |
62e76326 | 99 | xstrncpy(pathtmp, sd->path, SQUID_MAXPATHLEN - 64); |
100 | pathtmp2 = pathtmp; | |
101 | ||
102 | while ((pathtmp2 = strchr(pathtmp2, '/')) != NULL) | |
103 | *pathtmp2 = '.'; | |
104 | ||
105 | while (strlen(pathtmp) && pathtmp[strlen(pathtmp) - 1] == '.') | |
106 | pathtmp[strlen(pathtmp) - 1] = '\0'; | |
107 | ||
3d0ac046 | 108 | for (pathtmp2 = pathtmp; *pathtmp2 == '.'; pathtmp2++); |
62e76326 | 109 | snprintf(path, SQUID_MAXPATHLEN - 64, Config.Log.swap, pathtmp2); |
110 | ||
111 | if (strncmp(path, Config.Log.swap, SQUID_MAXPATHLEN - 64) == 0) { | |
112 | strcat(path, "."); | |
113 | snprintf(digit, 32, "%02d", sd->index); | |
114 | strncat(path, digit, 3); | |
115 | } | |
cd748f27 | 116 | } else { |
62e76326 | 117 | xstrncpy(path, sd->path, SQUID_MAXPATHLEN - 64); |
118 | strcat(path, "/swap.state"); | |
cd748f27 | 119 | } |
62e76326 | 120 | |
cd748f27 | 121 | if (ext) |
62e76326 | 122 | strncat(path, ext, 16); |
123 | ||
cd748f27 | 124 | return path; |
125 | } | |
126 | ||
d3b3ab85 | 127 | void |
128 | CossSwapDir::openLog() | |
cd748f27 | 129 | { |
d3b3ab85 | 130 | char *logPath; |
131 | logPath = storeCossDirSwapLogFile(this, NULL); | |
132 | swaplog_fd = file_open(logPath, O_WRONLY | O_CREAT | O_BINARY); | |
62e76326 | 133 | |
d3b3ab85 | 134 | if (swaplog_fd < 0) { |
bf8fe701 | 135 | debugs(47, 1, "" << logPath << ": " << xstrerror()); |
62e76326 | 136 | fatal("storeCossDirOpenSwapLog: Failed to open swap log."); |
cd748f27 | 137 | } |
62e76326 | 138 | |
bf8fe701 | 139 | debugs(47, 3, "Cache COSS Dir #" << index << " log opened on FD " << swaplog_fd); |
cd748f27 | 140 | } |
141 | ||
d3b3ab85 | 142 | void |
143 | CossSwapDir::closeLog() | |
cd748f27 | 144 | { |
d3b3ab85 | 145 | if (swaplog_fd < 0) /* not open */ |
62e76326 | 146 | return; |
147 | ||
d3b3ab85 | 148 | file_close(swaplog_fd); |
62e76326 | 149 | |
bf8fe701 | 150 | debugs(47, 3, "Cache COSS Dir #" << index << " log closed on FD " << swaplog_fd); |
62e76326 | 151 | |
d3b3ab85 | 152 | swaplog_fd = -1; |
cd748f27 | 153 | } |
154 | ||
d3b3ab85 | 155 | void |
b9ae18aa | 156 | CossSwapDir::ioCompletedNotification() |
d3b3ab85 | 157 | { |
b9ae18aa | 158 | if (theFile->error()) { |
bf8fe701 | 159 | debugs(47, 1, "" << path << ": " << xstrerror()); |
1a224843 | 160 | fatal("storeCossDirInit: Failed to open a COSS file."); |
697c29aa | 161 | } |
b9ae18aa | 162 | } |
163 | ||
164 | void | |
165 | CossSwapDir::closeCompleted() | |
166 | { | |
167 | theFile = NULL; | |
168 | } | |
169 | ||
170 | void | |
171 | CossSwapDir::readCompleted(const char *buf, int len, int errflag, RefCount<ReadRequest> aRequest) | |
172 | { | |
173 | CossRead* cossRead= dynamic_cast<CossRead *>(aRequest.getRaw()); | |
174 | assert (cossRead); | |
175 | StoreIOState::Pointer sio = cossRead->sio; | |
176 | void *cbdata; | |
c6ee6676 | 177 | StoreIOState::STRCB *callback = sio->read.callback; |
b9ae18aa | 178 | char *p; |
179 | CossState *cstate = dynamic_cast<CossState *>(sio.getRaw()); | |
180 | ssize_t rlen; | |
181 | ||
bf8fe701 | 182 | debugs(79, 3, "storeCossReadDone: fileno " << sio->swap_filen << ", len " << len); |
b9ae18aa | 183 | cstate->flags.reading = 0; |
184 | ||
185 | if (errflag) { | |
186 | StoreFScoss::GetInstance().stats.read.fail++; | |
187 | ||
188 | if (errflag > 0) { | |
189 | errno = errflag; | |
bf8fe701 | 190 | debugs(79, 1, "storeCossReadDone: error: " << xstrerror()); |
b9ae18aa | 191 | } else { |
bf8fe701 | 192 | debugs(79, 1, "storeCossReadDone: got failure (" << errflag << ")"); |
b9ae18aa | 193 | } |
194 | ||
195 | rlen = -1; | |
196 | } else { | |
197 | StoreFScoss::GetInstance().stats.read.success++; | |
198 | ||
199 | if (cstate->readbuffer == NULL) { | |
200 | cstate->readbuffer = (char *)xmalloc(cstate->st_size); | |
201 | p = storeCossMemPointerFromDiskOffset(storeCossFilenoToDiskOffset(sio->swap_filen), | |
202 | NULL); | |
203 | xmemcpy(cstate->readbuffer, p, cstate->st_size); | |
204 | } | |
205 | ||
206 | sio->offset_ += len; | |
207 | xmemcpy(cstate->requestbuf, &cstate->readbuffer[cstate->requestoffset], | |
208 | cstate->requestlen); | |
209 | rlen = (size_t) cstate->requestlen; | |
210 | } | |
211 | ||
212 | assert(callback); | |
213 | sio->read.callback = NULL; | |
214 | ||
215 | if (cbdataReferenceValidDone(sio->read.callback_data, &cbdata)) | |
c6ee6676 | 216 | callback(cbdata, cstate->requestbuf, rlen, sio); |
b9ae18aa | 217 | } |
218 | ||
219 | void | |
220 | CossSwapDir::writeCompleted(int errflag, size_t len, RefCount<WriteRequest> writeRequest) | |
221 | { | |
222 | CossWrite* cossWrite= dynamic_cast<CossWrite *>(writeRequest.getRaw()); | |
223 | assert (cossWrite); | |
224 | ||
4a7a3d56 | 225 | debugs(79, 3, "storeCossWriteMemBufDone: buf " << cossWrite->membuf << ", len " << len); |
b9ae18aa | 226 | |
227 | ||
228 | if (errflag) { | |
229 | StoreFScoss::GetInstance().stats.stripe_write.fail++; | |
bf8fe701 | 230 | debugs(79, 1, "storeCossWriteMemBufDone: got failure (" << errflag << ")"); |
ddd1cefa | 231 | debugs(79, 1, "size=" << cossWrite->membuf->diskend - cossWrite->membuf->diskstart); |
b9ae18aa | 232 | } else { |
233 | StoreFScoss::GetInstance().stats.stripe_write.success++; | |
234 | } | |
235 | ||
236 | ||
237 | dlinkDelete(&cossWrite->membuf->node, &membufs); | |
238 | cbdataFree(cossWrite->membuf); | |
239 | StoreFScoss::GetInstance().stats.stripes--; | |
240 | } | |
241 | ||
242 | void | |
243 | CossSwapDir::changeIO(DiskIOModule *module) | |
244 | { | |
245 | DiskIOStrategy *anIO = module->createStrategy(); | |
246 | safe_free(ioModule); | |
247 | ioModule = xstrdup(module->type()); | |
248 | ||
249 | delete io; | |
250 | io = anIO; | |
251 | /* Change the IO Options */ | |
252 | ||
e2a8733e | 253 | if (currentIOOptions == NULL) |
254 | currentIOOptions = new ConfigOptionVector(); | |
255 | ||
b9ae18aa | 256 | if (currentIOOptions->options.size() > 3) |
257 | delete currentIOOptions->options.pop_back(); | |
258 | ||
259 | /* TODO: factor out these 4 lines */ | |
260 | ConfigOption *ioOptions = NULL; | |
261 | ||
262 | if (io) | |
263 | ioOptions = io->getOptionTree(); | |
264 | ||
265 | if (ioOptions) | |
266 | currentIOOptions->options.push_back(ioOptions); | |
267 | } | |
268 | ||
269 | bool | |
270 | CossSwapDir::optionIOParse(char const *option, const char *value, int reconfiguring) | |
271 | { | |
272 | if (strcmp(option, "IOEngine") != 0) | |
273 | return false; | |
274 | ||
275 | if (reconfiguring) | |
276 | /* silently ignore this */ | |
277 | return true; | |
278 | ||
279 | if (!value) | |
280 | self_destruct(); | |
281 | ||
282 | DiskIOModule *module = DiskIOModule::Find(value); | |
283 | ||
284 | if (!module) | |
285 | self_destruct(); | |
286 | ||
287 | changeIO(module); | |
288 | ||
289 | return true; | |
290 | } | |
291 | ||
292 | void | |
293 | CossSwapDir::optionIODump(StoreEntry * e) const | |
294 | { | |
295 | storeAppendPrintf(e, " IOEngine=%s", ioModule); | |
296 | } | |
297 | ||
298 | ConfigOption * | |
299 | CossSwapDir::getOptionTree() const | |
300 | { | |
301 | ConfigOption *parentResult = SwapDir::getOptionTree(); | |
302 | ||
e2a8733e | 303 | if (currentIOOptions == NULL) |
304 | currentIOOptions = new ConfigOptionVector(); | |
305 | ||
b9ae18aa | 306 | currentIOOptions->options.push_back(parentResult); |
e2a8733e | 307 | |
b9ae18aa | 308 | currentIOOptions->options.push_back(new ConfigOptionAdapter<CossSwapDir>(*const_cast<CossSwapDir *>(this), &CossSwapDir::optionIOParse, &CossSwapDir::optionIODump)); |
e2a8733e | 309 | |
b9ae18aa | 310 | currentIOOptions->options.push_back( |
311 | new ConfigOptionAdapter<CossSwapDir>(*const_cast<CossSwapDir *>(this), | |
312 | &CossSwapDir::optionBlockSizeParse, | |
313 | &CossSwapDir::optionBlockSizeDump)); | |
314 | ||
315 | ||
316 | ConfigOption *ioOptions = NULL; | |
317 | ||
318 | if (io) | |
319 | ioOptions = io->getOptionTree(); | |
320 | ||
321 | if (ioOptions) | |
322 | currentIOOptions->options.push_back(ioOptions); | |
323 | ||
e2a8733e | 324 | ConfigOption* result = currentIOOptions; |
325 | ||
326 | currentIOOptions = NULL; | |
327 | ||
328 | return result; | |
b9ae18aa | 329 | } |
330 | ||
331 | void | |
332 | CossSwapDir::init() | |
333 | { | |
334 | /* FIXME: SwapDirs aren't refcounted. We call IORequestor calls, which | |
335 | * are refcounted. SO, we up our count once to avoid implicit delete's. | |
336 | */ | |
337 | RefCountReference(); | |
338 | io->init(); | |
339 | openLog(); | |
340 | storeCossDirRebuild(this); | |
c8f4eac4 | 341 | theFile = io->newFile(stripePath()); |
b9ae18aa | 342 | theFile->open(O_RDWR | O_CREAT, 0644, this); |
62e76326 | 343 | |
b9ae18aa | 344 | ++n_coss_dirs; |
1a224843 | 345 | /* |
346 | * fs.blksize is normally determined by calling statvfs() etc, | |
347 | * but we just set it here. It is used in accounting the | |
348 | * total store size, and is reported in cachemgr 'storedir' | |
349 | * page. | |
350 | */ | |
351 | fs.blksize = 1 << blksz_bits; | |
cd748f27 | 352 | } |
353 | ||
6a566b9c | 354 | void |
d3b3ab85 | 355 | storeCossRemove(CossSwapDir * sd, StoreEntry * e) |
6a566b9c | 356 | { |
e6ccf245 | 357 | CossIndexNode *coss_node = (CossIndexNode *)e->repl.data; |
6a566b9c | 358 | e->repl.data = NULL; |
d3b3ab85 | 359 | dlinkDelete(&coss_node->node, &sd->cossindex); |
b001e822 | 360 | coss_index_pool->free(coss_node); |
d3b3ab85 | 361 | sd->count -= 1; |
6a566b9c | 362 | } |
363 | ||
364 | void | |
d3b3ab85 | 365 | storeCossAdd(CossSwapDir * sd, StoreEntry * e) |
6a566b9c | 366 | { |
b001e822 | 367 | CossIndexNode *coss_node = (CossIndexNode *)coss_index_pool->alloc(); |
6a566b9c | 368 | assert(!e->repl.data); |
369 | e->repl.data = coss_node; | |
d3b3ab85 | 370 | dlinkAdd(e, &coss_node->node, &sd->cossindex); |
371 | sd->count += 1; | |
6a566b9c | 372 | } |
373 | ||
374 | static void | |
375 | storeCossRebuildComplete(void *data) | |
376 | { | |
e6ccf245 | 377 | RebuildState *rb = (RebuildState *)data; |
d3b3ab85 | 378 | CossSwapDir *sd = rb->sd; |
b9ae18aa | 379 | sd->startMembuf(); |
bef81ea5 | 380 | StoreController::store_dirs_rebuilding--; |
6a566b9c | 381 | storeCossDirCloseTmpSwapLog(rb->sd); |
382 | storeRebuildComplete(&rb->counts); | |
383 | cbdataFree(rb); | |
384 | } | |
385 | ||
cd748f27 | 386 | static void |
387 | storeCossRebuildFromSwapLog(void *data) | |
388 | { | |
e6ccf245 | 389 | RebuildState *rb = (RebuildState *)data; |
cd748f27 | 390 | StoreEntry *e = NULL; |
51ee7c82 | 391 | StoreSwapLogData s; |
392 | size_t ss = sizeof(StoreSwapLogData); | |
cd748f27 | 393 | double x; |
394 | assert(rb != NULL); | |
395 | /* load a number of objects per invocation */ | |
62e76326 | 396 | |
d3b3ab85 | 397 | for (int aCount = 0; aCount < rb->speed; aCount++) { |
62e76326 | 398 | if (fread(&s, ss, 1, rb->log) != 1) { |
bf8fe701 | 399 | debugs(47, 1, "Done reading " << rb->sd->path << " swaplog (" << rb->n_read << " entries)"); |
62e76326 | 400 | fclose(rb->log); |
401 | rb->log = NULL; | |
402 | storeCossRebuildComplete(rb); | |
403 | return; | |
404 | } | |
405 | ||
406 | rb->n_read++; | |
407 | ||
408 | if (s.op <= SWAP_LOG_NOP) | |
409 | continue; | |
410 | ||
411 | if (s.op >= SWAP_LOG_MAX) | |
412 | continue; | |
413 | ||
bf8fe701 | 414 | debugs(47, 3, "storeCossRebuildFromSwapLog: " << |
415 | swap_log_op_str[(int) s.op] << " " << storeKeyText(s.key) << | |
416 | " "<< std::setfill('0') << std::hex << std::uppercase << | |
417 | std::setw(8) << s.swap_filen); | |
62e76326 | 418 | |
419 | if (s.op == SWAP_LOG_ADD) { | |
420 | (void) 0; | |
421 | } else if (s.op == SWAP_LOG_DEL) { | |
422 | /* Delete unless we already have a newer copy */ | |
423 | ||
c8f4eac4 | 424 | if ((e = rb->sd->get |
425 | (s.key)) != NULL && s.lastref > e->lastref) { | |
62e76326 | 426 | /* |
427 | * Make sure we don't unlink the file, it might be | |
428 | * in use by a subsequent entry. Also note that | |
429 | * we don't have to subtract from store_swap_size | |
430 | * because adding to store_swap_size happens in | |
431 | * the cleanup procedure. | |
432 | */ | |
d88e3c49 | 433 | e->expireNow(); |
434 | e->releaseRequest(); | |
62e76326 | 435 | |
436 | if (e->swap_filen > -1) { | |
437 | e->swap_filen = -1; | |
438 | } | |
439 | ||
5f33b71d | 440 | e->release(); |
62e76326 | 441 | /* Fake an unlink here, this is a bad hack :( */ |
442 | storeCossRemove(rb->sd, e); | |
443 | rb->counts.objcount--; | |
444 | rb->counts.cancelcount++; | |
26ac0430 AJ |
445 | } |
446 | continue; | |
62e76326 | 447 | } else { |
411c6ea3 | 448 | x = log(static_cast<double>(++rb->counts.bad_log_op)) / log(10.0); |
62e76326 | 449 | |
411c6ea3 | 450 | if (0.0 == x - (double) |
451 | (int) x) | |
bf8fe701 | 452 | debugs(47, 1, "WARNING: " << rb->counts.bad_log_op << " invalid swap log entries found"); |
62e76326 | 453 | |
454 | rb->counts.invalid++; | |
455 | ||
456 | continue; | |
457 | } | |
458 | ||
459 | if ((++rb->counts.scancount & 0xFFF) == 0) { | |
460 | ||
461 | struct stat sb; | |
462 | ||
463 | if (0 == fstat(fileno(rb->log), &sb)) | |
464 | storeRebuildProgress(rb->sd->index, | |
465 | (int) sb.st_size / ss, rb->n_read); | |
466 | } | |
467 | ||
468 | if (EBIT_TEST(s.flags, KEY_PRIVATE)) { | |
469 | rb->counts.badflags++; | |
470 | continue; | |
471 | } | |
472 | ||
c8f4eac4 | 473 | e = rb->sd->get |
474 | (s.key); | |
62e76326 | 475 | |
476 | if (e) { | |
477 | /* key already exists, current entry is newer */ | |
478 | /* keep old, ignore new */ | |
479 | rb->counts.dupcount++; | |
480 | continue; | |
481 | } | |
482 | ||
483 | /* update store_swap_size */ | |
484 | rb->counts.objcount++; | |
485 | ||
486 | e = storeCossAddDiskRestore(rb->sd, s.key, | |
487 | s.swap_filen, | |
488 | s.swap_file_sz, | |
489 | s.expires, | |
490 | s.timestamp, | |
491 | s.lastref, | |
492 | s.lastmod, | |
493 | s.refcount, | |
494 | s.flags, | |
495 | (int) rb->flags.clean); | |
496 | ||
497 | storeDirSwapLog(e, SWAP_LOG_ADD); | |
cd748f27 | 498 | } |
62e76326 | 499 | |
cd748f27 | 500 | eventAdd("storeCossRebuild", storeCossRebuildFromSwapLog, rb, 0.0, 1); |
501 | } | |
502 | ||
503 | /* Add a new object to the cache with empty memory copy and pointer to disk | |
504 | * use to rebuild store from disk. */ | |
505 | static StoreEntry * | |
d3b3ab85 | 506 | storeCossAddDiskRestore(CossSwapDir * SD, const cache_key * key, |
62e76326 | 507 | int file_number, |
47f6e231 | 508 | uint64_t swap_file_sz, |
62e76326 | 509 | time_t expires, |
510 | time_t timestamp, | |
511 | time_t lastref, | |
512 | time_t lastmod, | |
513 | u_int32_t refcount, | |
514 | u_int16_t flags, | |
515 | int clean) | |
cd748f27 | 516 | { |
517 | StoreEntry *e = NULL; | |
bf8fe701 | 518 | debugs(47, 5, "storeCossAddDiskRestore: " << storeKeyText(key) << |
519 | ", fileno="<< std::setfill('0') << std::hex << std::uppercase << | |
520 | std::setw(8) << file_number); | |
521 | ||
62e76326 | 522 | /* if you call this you'd better be sure file_number is not |
cd748f27 | 523 | * already in use! */ |
c8f4eac4 | 524 | e = new StoreEntry(); |
cd748f27 | 525 | e->store_status = STORE_OK; |
526 | e->swap_dirn = SD->index; | |
3900307b | 527 | e->setMemStatus(NOT_IN_MEMORY); |
cd748f27 | 528 | e->swap_status = SWAPOUT_DONE; |
529 | e->swap_filen = file_number; | |
530 | e->swap_file_sz = swap_file_sz; | |
531 | e->lock_count = 0; | |
cd748f27 | 532 | e->lastref = lastref; |
533 | e->timestamp = timestamp; | |
534 | e->expires = expires; | |
535 | e->lastmod = lastmod; | |
536 | e->refcount = refcount; | |
537 | e->flags = flags; | |
538 | EBIT_SET(e->flags, ENTRY_CACHABLE); | |
539 | EBIT_CLR(e->flags, RELEASE_REQUEST); | |
540 | EBIT_CLR(e->flags, KEY_PRIVATE); | |
541 | e->ping_status = PING_NONE; | |
542 | EBIT_CLR(e->flags, ENTRY_VALIDATED); | |
3fba691e | 543 | e->hashInsert(key); /* do it after we clear KEY_PRIVATE */ |
6a566b9c | 544 | storeCossAdd(SD, e); |
1a224843 | 545 | assert(e->swap_filen >= 0); |
cd748f27 | 546 | return e; |
547 | } | |
548 | ||
28c60158 | 549 | CBDATA_TYPE(RebuildState); |
cd748f27 | 550 | static void |
d3b3ab85 | 551 | storeCossDirRebuild(CossSwapDir * sd) |
cd748f27 | 552 | { |
28c60158 | 553 | RebuildState *rb; |
cd748f27 | 554 | int clean = 0; |
555 | int zero = 0; | |
556 | FILE *fp; | |
28c60158 | 557 | CBDATA_INIT_TYPE(RebuildState); |
72711e31 | 558 | rb = cbdataAlloc(RebuildState); |
cd748f27 | 559 | rb->sd = sd; |
560 | rb->speed = opt_foreground_rebuild ? 1 << 30 : 50; | |
6a566b9c | 561 | rb->flags.clean = (unsigned int) clean; |
cd748f27 | 562 | /* |
563 | * If the swap.state file exists in the cache_dir, then | |
564 | * we'll use storeCossRebuildFromSwapLog(). | |
565 | */ | |
566 | fp = storeCossDirOpenTmpSwapLog(sd, &clean, &zero); | |
bf8fe701 | 567 | debugs(47, 1, "Rebuilding COSS storage in " << sd->path << " (" << (clean ? "CLEAN" : "DIRTY") << ")"); |
6a566b9c | 568 | rb->log = fp; |
bef81ea5 | 569 | StoreController::store_dirs_rebuilding++; |
62e76326 | 570 | |
cd748f27 | 571 | if (!clean || fp == NULL) { |
62e76326 | 572 | /* COSS cannot yet rebuild from a dirty state. If the log |
573 | * is dirty then the COSS contents is thrown away. | |
574 | * Why? I guess it is because some contents will be lost, | |
575 | * and COSS cannot verify this.. | |
576 | */ | |
577 | ||
578 | if (fp != NULL) | |
579 | fclose(fp); | |
580 | ||
581 | /* | |
582 | * XXX Make sure we don't trigger an assertion if this is the first | |
583 | * storedir, since if we are, this call will cause storeRebuildComplete | |
584 | * to prematurely complete the rebuild process, and then some other | |
585 | * storedir will try to rebuild and eventually die. | |
586 | */ | |
587 | eventAdd("storeCossRebuildComplete", storeCossRebuildComplete, rb, 0.0, 0); | |
588 | ||
589 | return; | |
cd748f27 | 590 | } |
62e76326 | 591 | |
c8f4eac4 | 592 | eventAdd("storeCossRebuild", storeCossRebuildFromSwapLog, rb, 0.0, 1); |
cd748f27 | 593 | } |
594 | ||
595 | static void | |
d3b3ab85 | 596 | storeCossDirCloseTmpSwapLog(CossSwapDir * sd) |
cd748f27 | 597 | { |
cd748f27 | 598 | char *swaplog_path = xstrdup(storeCossDirSwapLogFile(sd, NULL)); |
599 | char *new_path = xstrdup(storeCossDirSwapLogFile(sd, ".new")); | |
d3b3ab85 | 600 | int anfd; |
601 | file_close(sd->swaplog_fd); | |
62e76326 | 602 | |
cd748f27 | 603 | if (xrename(new_path, swaplog_path) < 0) { |
62e76326 | 604 | fatal("storeCossDirCloseTmpSwapLog: rename failed"); |
cd748f27 | 605 | } |
62e76326 | 606 | |
d3b3ab85 | 607 | anfd = file_open(swaplog_path, O_WRONLY | O_CREAT | O_BINARY); |
62e76326 | 608 | |
d3b3ab85 | 609 | if (anfd < 0) { |
bf8fe701 | 610 | debugs(50, 1, "" << swaplog_path << ": " << xstrerror()); |
62e76326 | 611 | fatal("storeCossDirCloseTmpSwapLog: Failed to open swap log."); |
cd748f27 | 612 | } |
62e76326 | 613 | |
cd748f27 | 614 | safe_free(swaplog_path); |
615 | safe_free(new_path); | |
d3b3ab85 | 616 | sd->swaplog_fd = anfd; |
bf8fe701 | 617 | debugs(47, 3, "Cache COSS Dir #" << sd->index << " log opened on FD " << anfd); |
cd748f27 | 618 | } |
619 | ||
620 | static FILE * | |
d3b3ab85 | 621 | storeCossDirOpenTmpSwapLog(CossSwapDir * sd, int *clean_flag, int *zero_flag) |
cd748f27 | 622 | { |
cd748f27 | 623 | char *swaplog_path = xstrdup(storeCossDirSwapLogFile(sd, NULL)); |
624 | char *clean_path = xstrdup(storeCossDirSwapLogFile(sd, ".last-clean")); | |
625 | char *new_path = xstrdup(storeCossDirSwapLogFile(sd, ".new")); | |
62e76326 | 626 | |
cd748f27 | 627 | struct stat log_sb; |
62e76326 | 628 | |
cd748f27 | 629 | struct stat clean_sb; |
630 | FILE *fp; | |
d3b3ab85 | 631 | int anfd; |
62e76326 | 632 | |
c8f4eac4 | 633 | if (::stat(swaplog_path, &log_sb) < 0) { |
bf8fe701 | 634 | debugs(50, 1, "Cache COSS Dir #" << sd->index << ": No log file"); |
62e76326 | 635 | safe_free(swaplog_path); |
636 | safe_free(clean_path); | |
637 | safe_free(new_path); | |
638 | return NULL; | |
cd748f27 | 639 | } |
62e76326 | 640 | |
cd748f27 | 641 | *zero_flag = log_sb.st_size == 0 ? 1 : 0; |
642 | /* close the existing write-only FD */ | |
62e76326 | 643 | |
d3b3ab85 | 644 | if (sd->swaplog_fd >= 0) |
62e76326 | 645 | file_close(sd->swaplog_fd); |
646 | ||
cd748f27 | 647 | /* open a write-only FD for the new log */ |
d3b3ab85 | 648 | anfd = file_open(new_path, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY); |
62e76326 | 649 | |
d3b3ab85 | 650 | if (anfd < 0) { |
bf8fe701 | 651 | debugs(50, 1, "" << new_path << ": " << xstrerror()); |
62e76326 | 652 | fatal("storeDirOpenTmpSwapLog: Failed to open swap log."); |
cd748f27 | 653 | } |
62e76326 | 654 | |
d3b3ab85 | 655 | sd->swaplog_fd = anfd; |
cd748f27 | 656 | /* open a read-only stream of the old log */ |
3d37fe17 | 657 | fp = fopen(swaplog_path, "rb"); |
62e76326 | 658 | |
cd748f27 | 659 | if (fp == NULL) { |
bf8fe701 | 660 | debugs(50, 0, "" << swaplog_path << ": " << xstrerror()); |
62e76326 | 661 | fatal("Failed to open swap log for reading"); |
cd748f27 | 662 | } |
62e76326 | 663 | |
cd748f27 | 664 | memset(&clean_sb, '\0', sizeof(struct stat)); |
62e76326 | 665 | |
c8f4eac4 | 666 | if (::stat(clean_path, &clean_sb) < 0) |
62e76326 | 667 | *clean_flag = 0; |
cd748f27 | 668 | else if (clean_sb.st_mtime < log_sb.st_mtime) |
62e76326 | 669 | *clean_flag = 0; |
cd748f27 | 670 | else |
62e76326 | 671 | *clean_flag = 1; |
672 | ||
cd748f27 | 673 | safeunlink(clean_path, 1); |
62e76326 | 674 | |
cd748f27 | 675 | safe_free(swaplog_path); |
62e76326 | 676 | |
cd748f27 | 677 | safe_free(clean_path); |
62e76326 | 678 | |
cd748f27 | 679 | safe_free(new_path); |
62e76326 | 680 | |
cd748f27 | 681 | return fp; |
682 | } | |
683 | ||
62e76326 | 684 | class CossCleanLog : public SwapDir::CleanLog |
685 | { | |
686 | ||
687 | public: | |
b9ae18aa | 688 | CossCleanLog(CossSwapDir *); |
d3b3ab85 | 689 | virtual const StoreEntry *nextEntry(); |
690 | virtual void write(StoreEntry const &); | |
cd748f27 | 691 | char *cur; |
e6ccf245 | 692 | char *newLog; |
cd748f27 | 693 | char *cln; |
694 | char *outbuf; | |
695 | off_t outbuf_offset; | |
696 | int fd; | |
6a566b9c | 697 | dlink_node *current; |
b9ae18aa | 698 | CossSwapDir *sd; |
cd748f27 | 699 | }; |
700 | ||
701 | #define CLEAN_BUF_SZ 16384 | |
d3b3ab85 | 702 | |
b9ae18aa | 703 | CossCleanLog::CossCleanLog(CossSwapDir *aSwapDir) : cur(NULL),newLog(NULL),cln(NULL),outbuf(NULL), |
62e76326 | 704 | outbuf_offset(0), fd(-1),current(NULL), sd(aSwapDir) |
705 | {} | |
d3b3ab85 | 706 | |
cd748f27 | 707 | /* |
708 | * Begin the process to write clean cache state. For COSS this means | |
709 | * opening some log files and allocating write buffers. Return 0 if | |
710 | * we succeed, and assign the 'func' and 'data' return pointers. | |
711 | */ | |
d3b3ab85 | 712 | int |
713 | CossSwapDir::writeCleanStart() | |
cd748f27 | 714 | { |
d3b3ab85 | 715 | CossCleanLog *state = new CossCleanLog(this); |
1f56cfef | 716 | #if HAVE_FCHMOD |
62e76326 | 717 | |
cd748f27 | 718 | struct stat sb; |
1f56cfef | 719 | #endif |
62e76326 | 720 | |
d3b3ab85 | 721 | state->newLog = xstrdup(storeCossDirSwapLogFile(this, ".clean")); |
e6ccf245 | 722 | state->fd = file_open(state->newLog, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY); |
d3b3ab85 | 723 | cleanLog = NULL; |
62e76326 | 724 | |
81928dfe | 725 | if (state->fd < 0) { |
62e76326 | 726 | xfree(state->newLog); |
727 | delete state; | |
728 | return -1; | |
81928dfe | 729 | } |
62e76326 | 730 | |
d3b3ab85 | 731 | state->cur = xstrdup(storeCossDirSwapLogFile(this, NULL)); |
732 | state->cln = xstrdup(storeCossDirSwapLogFile(this, ".last-clean")); | |
e6ccf245 | 733 | state->outbuf = (char *)xcalloc(CLEAN_BUF_SZ, 1); |
cd748f27 | 734 | state->outbuf_offset = 0; |
d3b3ab85 | 735 | ::unlink(state->cln); |
736 | state->current = cossindex.tail; | |
bf8fe701 | 737 | debugs(50, 3, "storeCOssDirWriteCleanLogs: opened " << state->newLog << ", FD " << state->fd); |
cd748f27 | 738 | #if HAVE_FCHMOD |
62e76326 | 739 | |
c8f4eac4 | 740 | if (::stat(state->cur, &sb) == 0) |
62e76326 | 741 | fchmod(state->fd, sb.st_mode); |
742 | ||
cd748f27 | 743 | #endif |
62e76326 | 744 | |
d3b3ab85 | 745 | cleanLog = state; |
6a566b9c | 746 | |
cd748f27 | 747 | return 0; |
748 | } | |
749 | ||
c8f4eac4 | 750 | /* RBC 20050101 - I think there is a race condition here, |
751 | * *current can be freed as its not ref counted, if/when | |
26ac0430 | 752 | * the store overruns the log writer |
c8f4eac4 | 753 | */ |
d3b3ab85 | 754 | const StoreEntry * |
755 | CossCleanLog::nextEntry() | |
6a566b9c | 756 | { |
6a566b9c | 757 | const StoreEntry *entry; |
62e76326 | 758 | |
d3b3ab85 | 759 | if (!current) |
62e76326 | 760 | return NULL; |
761 | ||
d3b3ab85 | 762 | entry = (const StoreEntry *) current->data; |
62e76326 | 763 | |
d3b3ab85 | 764 | current = current->prev; |
62e76326 | 765 | |
6a566b9c | 766 | return entry; |
767 | } | |
768 | ||
cd748f27 | 769 | /* |
770 | * "write" an entry to the clean log file. | |
771 | */ | |
d3b3ab85 | 772 | void |
773 | CossCleanLog::write(StoreEntry const &e) | |
cd748f27 | 774 | { |
d3b3ab85 | 775 | CossCleanLog *state = this; |
51ee7c82 | 776 | StoreSwapLogData s; |
777 | static size_t ss = sizeof(StoreSwapLogData); | |
cd748f27 | 778 | s.op = (char) SWAP_LOG_ADD; |
d3b3ab85 | 779 | s.swap_filen = e.swap_filen; |
780 | s.timestamp = e.timestamp; | |
781 | s.lastref = e.lastref; | |
782 | s.expires = e.expires; | |
783 | s.lastmod = e.lastmod; | |
784 | s.swap_file_sz = e.swap_file_sz; | |
785 | s.refcount = e.refcount; | |
786 | s.flags = e.flags; | |
c3031d67 | 787 | xmemcpy(&s.key, e.key, SQUID_MD5_DIGEST_LENGTH); |
b9ae18aa | 788 | xmemcpy(outbuf + outbuf_offset, &s, ss); |
789 | outbuf_offset += ss; | |
cd748f27 | 790 | /* buffered write */ |
62e76326 | 791 | |
b9ae18aa | 792 | if (outbuf_offset + ss > CLEAN_BUF_SZ) { |
793 | if (FD_WRITE_METHOD(fd, outbuf, outbuf_offset) < 0) { | |
bf8fe701 | 794 | debugs(50, 0, "storeCossDirWriteCleanLogs: " << newLog << ": write: " << xstrerror()); |
795 | debugs(50, 0, "storeCossDirWriteCleanLogs: Current swap logfile not replaced."); | |
b9ae18aa | 796 | file_close(fd); |
797 | fd = -1; | |
798 | unlink(newLog); | |
62e76326 | 799 | sd->cleanLog = NULL; |
b9ae18aa | 800 | delete state; |
62e76326 | 801 | return; |
802 | } | |
803 | ||
b9ae18aa | 804 | outbuf_offset = 0; |
cd748f27 | 805 | } |
806 | } | |
807 | ||
d3b3ab85 | 808 | void |
809 | CossSwapDir::writeCleanDone() | |
cd748f27 | 810 | { |
d3b3ab85 | 811 | CossCleanLog *state = (CossCleanLog *)cleanLog; |
62e76326 | 812 | |
a7d542ee | 813 | if (NULL == state) |
62e76326 | 814 | return; |
815 | ||
cd748f27 | 816 | if (state->fd < 0) |
62e76326 | 817 | return; |
818 | ||
d0ef8ea8 | 819 | if (FD_WRITE_METHOD(state->fd, state->outbuf, state->outbuf_offset) < 0) { |
bf8fe701 | 820 | debugs(50, 0, "storeCossDirWriteCleanLogs: " << state->newLog << ": write: " << xstrerror()); |
821 | debugs(50, 0, "storeCossDirWriteCleanLogs: Current swap logfile not replaced."); | |
62e76326 | 822 | file_close(state->fd); |
823 | state->fd = -1; | |
824 | ::unlink(state->newLog); | |
cd748f27 | 825 | } |
62e76326 | 826 | |
cd748f27 | 827 | safe_free(state->outbuf); |
828 | /* | |
829 | * You can't rename open files on Microsoft "operating systems" | |
830 | * so we have to close before renaming. | |
831 | */ | |
d3b3ab85 | 832 | closeLog(); |
3d37fe17 | 833 | /* save the fd value for a later test */ |
d3b3ab85 | 834 | int anfd = state->fd; |
cd748f27 | 835 | /* rename */ |
62e76326 | 836 | |
cd748f27 | 837 | if (state->fd >= 0) { |
966f432f | 838 | #if defined(_SQUID_OS2_) || defined(_SQUID_WIN32_) |
62e76326 | 839 | file_close(state->fd); |
840 | state->fd = -1; | |
841 | ||
cd748f27 | 842 | #endif |
62e76326 | 843 | |
844 | xrename(state->newLog, state->cur); | |
cd748f27 | 845 | } |
62e76326 | 846 | |
cd748f27 | 847 | /* touch a timestamp file if we're not still validating */ |
bef81ea5 | 848 | if (StoreController::store_dirs_rebuilding) |
62e76326 | 849 | (void) 0; |
d3b3ab85 | 850 | else if (anfd < 0) |
62e76326 | 851 | (void) 0; |
cd748f27 | 852 | else |
62e76326 | 853 | file_close(file_open(state->cln, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY)); |
854 | ||
cd748f27 | 855 | /* close */ |
856 | safe_free(state->cur); | |
62e76326 | 857 | |
e6ccf245 | 858 | safe_free(state->newLog); |
62e76326 | 859 | |
cd748f27 | 860 | safe_free(state->cln); |
62e76326 | 861 | |
cd748f27 | 862 | if (state->fd >= 0) |
62e76326 | 863 | file_close(state->fd); |
864 | ||
cd748f27 | 865 | state->fd = -1; |
62e76326 | 866 | |
d3b3ab85 | 867 | delete state; |
62e76326 | 868 | |
d3b3ab85 | 869 | cleanLog = NULL; |
cd748f27 | 870 | } |
871 | ||
061c7171 | 872 | static void |
873 | FreeObject(void *address) | |
874 | { | |
875 | StoreSwapLogData *anObject = static_cast <StoreSwapLogData *>(address); | |
876 | delete anObject; | |
877 | } | |
878 | ||
d3b3ab85 | 879 | void |
880 | CossSwapDir::logEntry(const StoreEntry & e, int op) const | |
cd748f27 | 881 | { |
51ee7c82 | 882 | StoreSwapLogData *s = new StoreSwapLogData; |
cd748f27 | 883 | s->op = (char) op; |
d3b3ab85 | 884 | s->swap_filen = e.swap_filen; |
885 | s->timestamp = e.timestamp; | |
886 | s->lastref = e.lastref; | |
887 | s->expires = e.expires; | |
888 | s->lastmod = e.lastmod; | |
889 | s->swap_file_sz = e.swap_file_sz; | |
890 | s->refcount = e.refcount; | |
891 | s->flags = e.flags; | |
c3031d67 | 892 | xmemcpy(s->key, e.key, SQUID_MD5_DIGEST_LENGTH); |
d3b3ab85 | 893 | file_write(swaplog_fd, |
62e76326 | 894 | -1, |
895 | s, | |
51ee7c82 | 896 | sizeof(StoreSwapLogData), |
62e76326 | 897 | NULL, |
898 | NULL, | |
061c7171 | 899 | &FreeObject); |
cd748f27 | 900 | } |
901 | ||
d3b3ab85 | 902 | void |
c8f4eac4 | 903 | CossSwapDir::create() |
cd748f27 | 904 | { |
c8f4eac4 | 905 | debugs (47, 3, "Creating swap space in " << path); |
906 | ||
907 | struct stat swap_sb; | |
908 | int swap; | |
909 | ||
910 | if (::stat(path, &swap_sb) < 0) { | |
911 | debugs (47, 2, "COSS swap space space being allocated."); | |
7be3caf3 | 912 | #ifdef _SQUID_MSWIN_ |
913 | ||
914 | mkdir(path); | |
915 | #else | |
916 | ||
c8f4eac4 | 917 | mkdir(path, 0700); |
7be3caf3 | 918 | #endif |
919 | ||
c8f4eac4 | 920 | } |
921 | ||
922 | /* should check here for directories instead of files, and for file size | |
923 | * TODO - if nothing changes, there is nothing to do | |
924 | */ | |
925 | swap = open(stripePath(), O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0600); | |
926 | ||
927 | /* TODO just set the file size */ | |
928 | /* swap size is in K */ | |
929 | char *block[1024]; | |
930 | ||
931 | memset(&block, '\0', 1024); | |
932 | ||
933 | for (off_t offset = 0; offset < max_size; ++offset) { | |
934 | if (write (swap, block, 1024) < 1024) { | |
935 | debugs (47, 0, "Failed to create COSS swap space in " << path); | |
936 | } | |
937 | } | |
938 | ||
939 | close (swap); | |
940 | ||
cd748f27 | 941 | } |
942 | ||
a4b8110e | 943 | /* we are shutting down, flush all membufs to disk */ |
d3b3ab85 | 944 | CossSwapDir::~CossSwapDir() |
cd748f27 | 945 | { |
b9ae18aa | 946 | io->sync(); |
c8f4eac4 | 947 | |
948 | if (theFile != NULL) | |
949 | theFile->close(); | |
950 | ||
b9ae18aa | 951 | delete io; |
cd748f27 | 952 | |
d3b3ab85 | 953 | closeLog(); |
c8f4eac4 | 954 | |
cd748f27 | 955 | n_coss_dirs--; |
c8f4eac4 | 956 | |
b9ae18aa | 957 | safe_free(ioModule); |
c8f4eac4 | 958 | |
959 | safe_free(stripe_path); | |
cd748f27 | 960 | } |
961 | ||
962 | /* | |
963 | * storeCossDirCheckObj | |
964 | * | |
965 | * This routine is called by storeDirSelectSwapDir to see if the given | |
966 | * object is able to be stored on this filesystem. COSS filesystems will | |
967 | * not store everything. We don't check for maxobjsize here since its | |
968 | * done by the upper layers. | |
969 | */ | |
970 | int | |
d3b3ab85 | 971 | CossSwapDir::canStore(StoreEntry const &e)const |
cd748f27 | 972 | { |
0dbabb56 | 973 | |
a4b8110e | 974 | /* Check if the object is a special object, we can't cache these */ |
62e76326 | 975 | |
d3b3ab85 | 976 | if (EBIT_TEST(e.flags, ENTRY_SPECIAL)) |
62e76326 | 977 | return -1; |
cd748f27 | 978 | |
a4b8110e | 979 | /* Otherwise, we're ok */ |
0dbabb56 | 980 | /* Return load, cs->aq.aq_numpending out of MAX_ASYNCOP */ |
b9ae18aa | 981 | return io->load(); |
cd748f27 | 982 | } |
a4b8110e | 983 | |
0e23343f | 984 | /* |
985 | * storeCossDirCallback - do the IO completions | |
986 | */ | |
d3b3ab85 | 987 | int |
988 | CossSwapDir::callback() | |
0e23343f | 989 | { |
b9ae18aa | 990 | return io->callback(); |
0e23343f | 991 | } |
992 | ||
cd748f27 | 993 | /* ========== LOCAL FUNCTIONS ABOVE, GLOBAL FUNCTIONS BELOW ========== */ |
994 | ||
d3b3ab85 | 995 | void |
996 | CossSwapDir::statfs(StoreEntry & sentry) const | |
cd748f27 | 997 | { |
d3b3ab85 | 998 | storeAppendPrintf(&sentry, "\n"); |
999 | storeAppendPrintf(&sentry, "Maximum Size: %d KB\n", max_size); | |
1000 | storeAppendPrintf(&sentry, "Current Size: %d KB\n", cur_size); | |
1001 | storeAppendPrintf(&sentry, "Percent Used: %0.2f%%\n", | |
62e76326 | 1002 | 100.0 * cur_size / max_size); |
d3b3ab85 | 1003 | storeAppendPrintf(&sentry, "Number of object collisions: %d\n", (int) numcollisions); |
cd748f27 | 1004 | #if 0 |
1005 | /* is this applicable? I Hope not .. */ | |
1006 | storeAppendPrintf(sentry, "Filemap bits in use: %d of %d (%d%%)\n", | |
62e76326 | 1007 | SD->map->n_files_in_map, SD->map->max_n_files, |
1008 | percent(SD->map->n_files_in_map, SD->map->max_n_files)); | |
cd748f27 | 1009 | #endif |
62e76326 | 1010 | |
b9ae18aa | 1011 | // storeAppendPrintf(&sentry, "Pending operations: %d out of %d\n", io->aq.aq_numpending, MAX_ASYNCOP); |
d3b3ab85 | 1012 | storeAppendPrintf(&sentry, "Flags:"); |
62e76326 | 1013 | |
d3b3ab85 | 1014 | if (flags.selected) |
62e76326 | 1015 | storeAppendPrintf(&sentry, " SELECTED"); |
1016 | ||
d3b3ab85 | 1017 | if (flags.read_only) |
62e76326 | 1018 | storeAppendPrintf(&sentry, " READ-ONLY"); |
1019 | ||
d3b3ab85 | 1020 | storeAppendPrintf(&sentry, "\n"); |
cd748f27 | 1021 | } |
1022 | ||
d3b3ab85 | 1023 | void |
1024 | CossSwapDir::parse(int anIndex, char *aPath) | |
cd748f27 | 1025 | { |
cd748f27 | 1026 | unsigned int i; |
1027 | unsigned int size; | |
47f6e231 | 1028 | off_t max_offset; |
cd748f27 | 1029 | |
1030 | i = GetInteger(); | |
1031 | size = i << 10; /* Mbytes to Kbytes */ | |
62e76326 | 1032 | |
cd748f27 | 1033 | if (size <= 0) |
62e76326 | 1034 | fatal("storeCossDirParse: invalid size value"); |
cd748f27 | 1035 | |
d3b3ab85 | 1036 | index = anIndex; |
62e76326 | 1037 | |
d3b3ab85 | 1038 | path = xstrdup(aPath); |
62e76326 | 1039 | |
d3b3ab85 | 1040 | max_size = size; |
1041 | ||
450e0c10 | 1042 | parseOptions(0); |
1043 | ||
26ac0430 | 1044 | if (NULL == io) |
b7717b61 | 1045 | changeIO(DiskIOModule::FindDefault()); |
1046 | ||
c94af0b9 | 1047 | /* Enforce maxobjsize being set to something */ |
d3b3ab85 | 1048 | if (max_objsize == -1) |
62e76326 | 1049 | fatal("COSS requires max-size to be set to something other than -1!\n"); |
1a224843 | 1050 | |
1051 | if (max_objsize > COSS_MEMBUF_SZ) | |
1052 | fatalf("COSS max-size option must be less than COSS_MEMBUF_SZ (%d)\n", | |
1053 | COSS_MEMBUF_SZ); | |
1054 | ||
1055 | /* | |
1056 | * check that we won't overflow sfileno later. 0xFFFFFF is the | |
1057 | * largest possible sfileno, assuming sfileno is a 25-bit | |
1058 | * signed integer, as defined in structs.h. | |
1059 | */ | |
47f6e231 | 1060 | max_offset = (off_t) 0xFFFFFF << blksz_bits; |
1a224843 | 1061 | |
47f6e231 | 1062 | if ((off_t)max_size > (max_offset>>10)) { |
bf8fe701 | 1063 | debugs(47, 0, "COSS block-size = " << (1<<blksz_bits) << " bytes"); |
4989878c | 1064 | debugs(47,0, "COSS largest file offset = " << (max_offset >> 10) << " KB"); |
bf8fe701 | 1065 | debugs(47, 0, "COSS cache_dir size = " << max_size << " KB"); |
1a224843 | 1066 | fatal("COSS cache_dir size exceeds largest offset\n"); |
1067 | } | |
cd748f27 | 1068 | } |
1069 | ||
1070 | ||
d3b3ab85 | 1071 | void |
1072 | CossSwapDir::reconfigure(int index, char *path) | |
cd748f27 | 1073 | { |
cd748f27 | 1074 | unsigned int i; |
1075 | unsigned int size; | |
cd748f27 | 1076 | |
1077 | i = GetInteger(); | |
1078 | size = i << 10; /* Mbytes to Kbytes */ | |
62e76326 | 1079 | |
cd748f27 | 1080 | if (size <= 0) |
62e76326 | 1081 | fatal("storeCossDirParse: invalid size value"); |
cd748f27 | 1082 | |
d3b3ab85 | 1083 | if (size == (size_t)max_size) |
bf8fe701 | 1084 | debugs(3, 1, "Cache COSS dir '" << path << "' size remains unchanged at " << size << " KB"); |
cd748f27 | 1085 | else { |
bf8fe701 | 1086 | debugs(3, 1, "Cache COSS dir '" << path << "' size changed to " << size << " KB"); |
62e76326 | 1087 | max_size = size; |
cd748f27 | 1088 | } |
62e76326 | 1089 | |
c94af0b9 | 1090 | /* Enforce maxobjsize being set to something */ |
d3b3ab85 | 1091 | if (max_objsize == -1) |
62e76326 | 1092 | fatal("COSS requires max-size to be set to something other than -1!\n"); |
cd748f27 | 1093 | } |
1094 | ||
1095 | void | |
d3b3ab85 | 1096 | CossSwapDir::dump(StoreEntry &entry)const |
cd748f27 | 1097 | { |
5c2d7edb | 1098 | storeAppendPrintf(&entry, " %d", max_size >> 10); |
59b2d47f | 1099 | dumpOptions(&entry); |
cd748f27 | 1100 | } |
1101 | ||
c8f4eac4 | 1102 | 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) |
cd748f27 | 1103 | { |
1a224843 | 1104 | membufs.head = NULL; |
1105 | membufs.tail = NULL; | |
1106 | cossindex.head = NULL; | |
1107 | cossindex.tail = NULL; | |
1108 | blksz_mask = (1 << blksz_bits) - 1; | |
c8f4eac4 | 1109 | repl = NULL; |
1a224843 | 1110 | } |
a4b8110e | 1111 | |
1a224843 | 1112 | bool |
1113 | CossSwapDir::optionBlockSizeParse(const char *option, const char *value, int reconfiguring) | |
1114 | { | |
d9e04dc7 | 1115 | assert(option); |
1116 | ||
1117 | if (strcmp(option, "block-size") != 0) | |
1118 | return false; | |
1119 | ||
1120 | if (!value) | |
1121 | self_destruct(); | |
1122 | ||
1a224843 | 1123 | int blksz = atoi(value); |
62e76326 | 1124 | |
1a224843 | 1125 | if (blksz == (1 << blksz_bits)) |
1126 | /* no change */ | |
1127 | return true; | |
1128 | ||
1129 | if (reconfiguring) { | |
bf8fe701 | 1130 | debugs(47, 0, "WARNING: cannot change COSS block-size while Squid is running"); |
1a224843 | 1131 | return false; |
cd748f27 | 1132 | } |
62e76326 | 1133 | |
1a224843 | 1134 | int nbits = 0; |
1135 | int check = blksz; | |
1136 | ||
1137 | while (check > 1) { | |
1138 | nbits++; | |
1139 | check >>= 1; | |
cd748f27 | 1140 | } |
62e76326 | 1141 | |
1a224843 | 1142 | check = 1 << nbits; |
1143 | ||
1144 | if (check != blksz) | |
1145 | fatal("COSS block-size must be a power of 2\n"); | |
1146 | ||
1147 | if (nbits > 13) | |
1148 | fatal("COSS block-size must be 8192 or smaller\n"); | |
1149 | ||
1150 | blksz_bits = nbits; | |
1151 | ||
1152 | blksz_mask = (1 << blksz_bits) - 1; | |
1153 | ||
1154 | return true; | |
cd748f27 | 1155 | } |
62e76326 | 1156 | |
1a224843 | 1157 | void |
1158 | CossSwapDir::optionBlockSizeDump(StoreEntry * e) const | |
d3b3ab85 | 1159 | { |
1a224843 | 1160 | storeAppendPrintf(e, " block-size=%d", 1 << blksz_bits); |
d3b3ab85 | 1161 | } |
c8f4eac4 | 1162 | |
1163 | StoreSearch * | |
30abd221 | 1164 | CossSwapDir::search(String const url, HttpRequest *) |
c8f4eac4 | 1165 | { |
1166 | if (url.size()) | |
1167 | fatal ("Cannot search by url yet\n"); | |
1168 | ||
1169 | return new StoreSearchCoss (this); | |
1170 | } | |
1171 | ||
1172 | char const * | |
1173 | CossSwapDir::stripePath() const | |
1174 | { | |
1175 | if (!stripe_path) { | |
30abd221 | 1176 | String result = path; |
c8f4eac4 | 1177 | result.append("/stripe"); |
30abd221 | 1178 | const_cast<CossSwapDir *>(this)->stripe_path = xstrdup(result.buf()); |
c8f4eac4 | 1179 | } |
1180 | ||
1181 | return stripe_path; | |
1182 | } | |
1183 | ||
1184 | CBDATA_CLASS_INIT(StoreSearchCoss); | |
1185 | StoreSearchCoss::StoreSearchCoss(RefCount<CossSwapDir> aSwapDir) : sd(aSwapDir), callback (NULL), cbdata(NULL), _done (false), current(NULL), next_(sd->cossindex.tail) | |
1186 | { | |
1187 | /* TODO: this races with the store as does the cleanlog stuff. | |
1188 | * FIXME by making coss_nodes ref counted */ | |
1189 | } | |
1190 | ||
1191 | /* do not link | |
1192 | StoreSearchCoss::StoreSearchCoss(StoreSearchCoss const &); | |
1193 | */ | |
1194 | ||
1195 | StoreSearchCoss::~StoreSearchCoss() | |
1196 | {} | |
1197 | ||
1198 | void | |
1199 | StoreSearchCoss::next(void (callback)(void *cbdata), void *cbdata) | |
1200 | { | |
1201 | next(); | |
1202 | callback (cbdata); | |
1203 | } | |
1204 | ||
1205 | bool | |
1206 | StoreSearchCoss::next() | |
1207 | { | |
1208 | current = next_; | |
1209 | ||
1210 | if (next_) | |
1211 | next_ = next_->prev; | |
1212 | ||
1213 | if (!current) | |
1214 | _done = true; | |
1215 | ||
1216 | return current != NULL; | |
1217 | } | |
1218 | ||
1219 | bool | |
1220 | StoreSearchCoss::error() const | |
1221 | { | |
1222 | return false; | |
1223 | } | |
1224 | ||
1225 | bool | |
1226 | StoreSearchCoss::isDone() const | |
1227 | { | |
1228 | return _done; | |
1229 | } | |
1230 | ||
1231 | StoreEntry * | |
1232 | StoreSearchCoss::currentItem() | |
1233 | { | |
1234 | if (!current) | |
1235 | return NULL; | |
1236 | ||
1237 | return static_cast<StoreEntry *>( current->data ); | |
1238 | } |