GCC Code Coverage Report

Directory: cvmfs/
File: cvmfs/catalog.cc
Date: 2025-12-28 02:35:52
Exec Total Coverage
Lines: 407 439 92.7%
Branches: 324 606 53.5%
Line Branch Exec Source
1 /**
2 * This file is part of the CernVM File System.
3 */
4
5 #include "catalog.h"
6
7 #include <alloca.h>
8 #include <errno.h>
9
10 #include <algorithm>
11 #include <cassert>
12
13 #include "catalog_mgr.h"
14 #include "util/concurrency.h"
15 #include "util/logging.h"
16 #include "util/platform.h"
17 #include "util/smalloc.h"
18
19 using namespace std; // NOLINT
20
21 namespace catalog {
22
23 const shash::Md5 Catalog::kMd5PathEmpty("", 0);
24
25
26 /**
27 * Open a catalog outside the framework of a catalog manager.
28 */
29 465 Catalog *Catalog::AttachFreely(const string &imaginary_mountpoint,
30 const string &file,
31 const shash::Any &catalog_hash,
32 Catalog *parent,
33 const bool is_nested) {
34 Catalog *catalog = new Catalog(
35 465 PathString(imaginary_mountpoint.data(), imaginary_mountpoint.length()),
36 catalog_hash,
37 parent,
38
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 465 is_nested);
39 465 const bool successful_init = catalog->InitStandalone(file);
40
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 465 if (!successful_init) {
41
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 47 delete catalog;
42 47 return NULL;
43 }
44 418 return catalog;
45 }
46
47
48 3743 Catalog::Catalog(const PathString &mountpoint,
49 const shash::Any &catalog_hash,
50 Catalog *parent,
51 3743 const bool is_nested)
52 3743 : catalog_hash_(catalog_hash)
53
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 3743 , mountpoint_(mountpoint)
54
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 3743 , is_regular_mountpoint_(mountpoint_ == root_prefix_)
55 3743 , volatile_flag_(false)
56
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 3743 , is_root_(parent == NULL && !is_nested)
57 3743 , managed_database_(false)
58 3743 , parent_(parent)
59 3743 , nested_catalog_cache_dirty_(true)
60 3743 , voms_authz_status_(kVomsUnknown)
61
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 7486 , initialized_(false) {
62 3743 max_row_id_ = 0;
63 3743 inode_annotation_ = NULL;
64 3743 lock_ = reinterpret_cast<pthread_mutex_t *>(smalloc(sizeof(pthread_mutex_t)));
65 3743 const int retval = pthread_mutex_init(lock_, NULL);
66
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 3743 assert(retval == 0);
67
68 3743 database_ = NULL;
69 3743 uid_map_ = NULL;
70 3743 gid_map_ = NULL;
71 3743 sql_listing_ = NULL;
72 3743 sql_lookup_md5path_ = NULL;
73 3743 sql_lookup_nested_ = NULL;
74 3743 sql_list_nested_ = NULL;
75 3743 sql_own_list_nested_ = NULL;
76 3743 sql_all_chunks_ = NULL;
77 3743 sql_chunks_listing_ = NULL;
78 3743 sql_lookup_xattrs_ = NULL;
79 3743 }
80
81
82 9598 Catalog::~Catalog() {
83 7288 pthread_mutex_destroy(lock_);
84 7288 free(lock_);
85 7288 FinalizePreparedStatements();
86
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 7288 delete database_;
87 9598 }
88
89
90 /**
91 * InitPreparedStatement uses polymorphism in case of a r/w catalog.
92 * FinalizePreparedStatements is called in the destructor where
93 * polymorphism does not work any more and has to be called both in
94 * the WritableCatalog and the Catalog destructor
95 */
96 3367 void Catalog::InitPreparedStatements() {
97
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 3367 sql_listing_ = new SqlListing(database());
98
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 3367 sql_lookup_md5path_ = new SqlLookupPathHash(database());
99
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 3367 sql_lookup_nested_ = new SqlNestedCatalogLookup(database());
100
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 3367 sql_list_nested_ = new SqlNestedCatalogListing(database());
101
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 3367 sql_own_list_nested_ = new SqlOwnNestedCatalogListing(database());
102
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 3367 sql_all_chunks_ = new SqlAllChunks(database());
103
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 3367 sql_chunks_listing_ = new SqlChunksListing(database());
104
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 3367 sql_lookup_xattrs_ = new SqlLookupXattrs(database());
105 3367 }
106
107
108 3644 void Catalog::FinalizePreparedStatements() {
109
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 3644 delete sql_lookup_xattrs_;
110
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 3644 delete sql_chunks_listing_;
111
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 3644 delete sql_all_chunks_;
112
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 3644 delete sql_listing_;
113
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 3644 delete sql_lookup_md5path_;
114
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 3644 delete sql_lookup_nested_;
115
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 3644 delete sql_list_nested_;
116
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 3644 delete sql_own_list_nested_;
117 3644 }
118
119
120 1499 bool Catalog::InitStandalone(const std::string &database_file) {
121
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 1499 const bool retval = OpenDatabase(database_file);
122
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 1499 if (!retval) {
123 47 return false;
124 }
125
126 1452 InodeRange inode_range;
127 1452 inode_range.MakeDummy();
128 1452 set_inode_range(inode_range);
129 1452 return true;
130 }
131
132
133 4982 bool Catalog::ReadCatalogCounters() {
134
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 4982 assert(database_ != NULL);
135 bool statistics_loaded;
136 4982 if (database().schema_version() < CatalogDatabase::kLatestSupportedSchema
137
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 4982 - CatalogDatabase::kSchemaEpsilon) {
138 94 statistics_loaded = counters_.ReadFromDatabase(database(),
139 LegacyMode::kLegacy);
140
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 4888 } else if (database().schema_revision() < 2) {
141 ✗ statistics_loaded = counters_.ReadFromDatabase(database(),
142 LegacyMode::kNoXattrs);
143
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 4888 } else if (database().schema_revision() < 3) {
144 ✗ statistics_loaded = counters_.ReadFromDatabase(database(),
145 LegacyMode::kNoExternals);
146
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 4888 } else if (database().schema_revision() < 5) {
147 ✗ statistics_loaded = counters_.ReadFromDatabase(database(),
148 LegacyMode::kNoSpecials);
149 } else {
150 4888 statistics_loaded = counters_.ReadFromDatabase(database());
151 }
152 4982 return statistics_loaded;
153 }
154
155
156 /**
157 * Establishes the database structures and opens the sqlite database file.
158 * @param db_path the absolute path to the database file on local file system
159 * @return true on successful initialization otherwise false
160 */
161 3461 bool Catalog::OpenDatabase(const string &db_path) {
162
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 3461 database_ = CatalogDatabase::Open(db_path, DatabaseOpenMode());
163
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 3461 if (NULL == database_) {
164 94 return false;
165 }
166
167
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 3367 if (database_->IsEqualSchema(database_->schema_version(), 1.0)) {
168 // Possible fix-up for database layout lacking the content hash of
169 // nested catalogs
170 SqlCatalog sql_has_nested_sha1(
171 94 database(),
172 "SELECT count(*) FROM sqlite_master "
173
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 282 "WHERE type='table' AND name='nested_catalogs' AND sql LIKE '%sha1%';");
174
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 94 const bool retval = sql_has_nested_sha1.FetchRow();
175
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 94 assert(retval == true);
176
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 94 const bool has_nested_sha1 = sql_has_nested_sha1.RetrieveInt64(0);
177
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 94 if (!has_nested_sha1) {
178 47 database_->EnforceSchema(0.9, 0);
179 }
180 94 }
181
182
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 3367 InitPreparedStatements();
183
184 // Set the database file ownership if requested
185
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 3367 if (managed_database_) {
186
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 127 database_->TakeFileOwnership();
187 }
188
189 // Find out the maximum row id of this database file
190
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 6734 SqlCatalog sql_max_row_id(database(), "SELECT MAX(rowid) FROM catalog;");
191
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 3367 if (!sql_max_row_id.FetchRow()) {
192 ✗ LogCvmfs(kLogCatalog, kLogDebug,
193 "Cannot retrieve maximal row id for database file %s "
194 "(SqliteErrorcode: %d)",
195 db_path.c_str(), sql_max_row_id.GetLastError());
196 ✗ return false;
197 }
198
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 3367 max_row_id_ = sql_max_row_id.RetrieveInt64(0);
199
200 // Get root prefix
201
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 3367 if (database_->HasProperty("root_prefix")) {
202 1438 const std::string root_prefix = database_->GetProperty<std::string>(
203
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 2876 "root_prefix");
204
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 1438 root_prefix_.Assign(root_prefix.data(), root_prefix.size());
205
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 1438 LogCvmfs(kLogCatalog, kLogDebug,
206 "found root prefix %s in root catalog file %s",
207 root_prefix_.c_str(), db_path.c_str());
208
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 1438 is_regular_mountpoint_ = (root_prefix_ == mountpoint_);
209 1438 } else {
210
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 1929 LogCvmfs(kLogCatalog, kLogDebug, "no root prefix for root catalog file %s",
211 db_path.c_str());
212 }
213
214 // Get volatile content flag
215
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 3367 volatile_flag_ = database_->GetPropertyDefault<bool>("volatile",
216 3367 volatile_flag_);
217
218 // Read Catalog Counter Statistics
219
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 3367 if (!ReadCatalogCounters()) {
220 ✗ LogCvmfs(kLogCatalog, kLogStderr,
221 "failed to load statistics counters for catalog %s (file %s)",
222 mountpoint_.c_str(), db_path.c_str());
223 ✗ return false;
224 }
225
226
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 3367 if (HasParent()) {
227
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 1336 parent_->AddChild(this);
228 }
229
230 3367 initialized_ = true;
231 3367 return true;
232 3367 }
233
234
235 /**
236 * Removes the mountpoint and prepends the root prefix to path
237 */
238 13034 shash::Md5 Catalog::NormalizePath(const PathString &path) const {
239
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 13034 if (is_regular_mountpoint_)
240
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 12806 return shash::Md5(path.GetChars(), path.GetLength());
241
242
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 228 assert(path.GetLength() >= mountpoint_.GetLength());
243 // Piecewise hash calculation: root_prefix plus tail of path
244
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 228 shash::Any result(shash::kMd5);
245
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 228 shash::ContextPtr ctx(shash::kMd5);
246 228 ctx.buffer = alloca(ctx.size);
247
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 228 shash::Init(ctx);
248
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 456 shash::Update(
249 228 reinterpret_cast<const unsigned char *>(root_prefix_.GetChars()),
250 root_prefix_.GetLength(),
251 ctx);
252 228 shash::Update(reinterpret_cast<const unsigned char *>(path.GetChars())
253
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 228 + mountpoint_.GetLength(),
254 228 path.GetLength() - mountpoint_.GetLength(),
255 ctx);
256
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 228 shash::Final(ctx, &result);
257
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 228 return result.CastToMd5();
258 }
259
260
261 /**
262 * Same as NormalizePath but returns a PathString instead of an Md5 hash.
263 */
264 1422 PathString Catalog::NormalizePath2(const PathString &path) const {
265
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 1422 if (is_regular_mountpoint_)
266
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 1234 return path;
267
268
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 188 assert(path.GetLength() >= mountpoint_.GetLength());
269
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 188 PathString result = root_prefix_;
270
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 188 const PathString suffix = path.Suffix(mountpoint_.GetLength());
271
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 188 result.Append(suffix.GetChars(), suffix.GetLength());
272
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 188 return result;
273 188 }
274
275
276 /**
277 * The opposite of NormalizePath: from a full path remove the root prefix and
278 * add the catalogs current mountpoint. Needed for normalized paths from the
279 * SQlite tables, such as nested catalog entry points.
280 */
281 1208 PathString Catalog::PlantPath(const PathString &path) const {
282
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 1208 if (is_regular_mountpoint_)
283
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 1020 return path;
284
285
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 188 assert(path.GetLength() >= root_prefix_.GetLength());
286
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 188 PathString result = mountpoint_;
287
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 188 const PathString suffix = path.Suffix(root_prefix_.GetLength());
288
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 188 result.Append(suffix.GetChars(), suffix.GetLength());
289
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 188 return result;
290 188 }
291
292
293 /**
294 * Performs a lookup on this Catalog for a given MD5 path hash.
295 * @param md5path the MD5 hash of the searched path
296 * @param expand_symlink indicates if variables in symlink should be resolved
297 * @param dirent will be set to the found DirectoryEntry
298 * @return true if DirectoryEntry was successfully found, false otherwise
299 */
300 11271 bool Catalog::LookupEntry(const shash::Md5 &md5path, const bool expand_symlink,
301 DirectoryEntry *dirent) const {
302
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 11271 assert(IsInitialized());
303
304 11271 const MutexLockGuard m(lock_);
305
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 11271 sql_lookup_md5path_->BindPathHash(md5path);
306
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 11271 const bool found = sql_lookup_md5path_->FetchRow();
307
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 11271 if (found && (dirent != NULL)) {
308
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 10974 *dirent = sql_lookup_md5path_->GetDirent(this, expand_symlink);
309
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 10974 FixTransitionPoint(md5path, dirent);
310 }
311
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 11271 sql_lookup_md5path_->Reset();
312
313 11271 return found;
314 11271 }
315
316
317 /**
318 * Performs a lookup on this Catalog for a given MD5 path hash.
319 * @param md5path the MD5 hash of the searched path
320 * @param dirent will be set to the found DirectoryEntry
321 * @return true if DirectoryEntry was successfully found, false otherwise
322 */
323 11226 bool Catalog::LookupMd5Path(const shash::Md5 &md5path,
324 DirectoryEntry *dirent) const {
325 11226 return LookupEntry(md5path, true, dirent);
326 }
327
328
329 45 bool Catalog::LookupRawSymlink(const PathString &path,
330 LinkString *raw_symlink) const {
331
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 45 DirectoryEntry dirent;
332
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 45 const bool result = (LookupEntry(NormalizePath(path), false, &dirent));
333
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 45 if (result)
334
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 45 raw_symlink->Assign(dirent.symlink());
335 45 return result;
336 45 }
337
338
339 45 bool Catalog::LookupXattrsMd5Path(const shash::Md5 &md5path,
340 XattrList *xattrs) const {
341
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 45 assert(IsInitialized());
342
343 45 const MutexLockGuard m(lock_);
344
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 45 sql_lookup_xattrs_->BindPathHash(md5path);
345
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 45 const bool found = sql_lookup_xattrs_->FetchRow();
346
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 45 if (found && (xattrs != NULL)) {
347
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 45 *xattrs = sql_lookup_xattrs_->GetXattrs();
348 }
349
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 45 sql_lookup_xattrs_->Reset();
350
351 45 return found;
352 45 }
353
354
355 /**
356 * Perform a listing of the directory with the given MD5 path hash.
357 * @param path_hash the MD5 hash of the path of the directory to list
358 * @param listing will be set to the resulting DirectoryEntryList
359 * @return true on successful listing, false otherwise
360 */
361 171 bool Catalog::ListingMd5PathStat(const shash::Md5 &md5path,
362 StatEntryList *listing) const {
363
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 171 assert(IsInitialized());
364
365
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 171 DirectoryEntry dirent;
366
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 171 StatEntry entry;
367
368 171 const MutexLockGuard m(lock_);
369
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 171 sql_listing_->BindPathHash(md5path);
370
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 543 while (sql_listing_->FetchRow()) {
371
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 372 dirent = sql_listing_->GetDirent(this);
372
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 372 if (dirent.IsHidden())
373 47 continue;
374
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 325 FixTransitionPoint(md5path, &dirent);
375
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 325 entry.name = dirent.name();
376
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 325 entry.info = dirent.GetStatStructure();
377
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 325 listing->PushBack(entry);
378 }
379
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 171 sql_listing_->Reset();
380
381 171 return true;
382 171 }
383
384
385 /**
386 * Perform a listing of the directory with the given MD5 path hash.
387 * Returns only struct stat values
388 * @param path_hash the MD5 hash of the path of the directory to list
389 * @param listing will be set to the resulting DirectoryEntryList
390 * @param expand_symlink defines if magic symlinks should be resolved
391 * @return true on successful listing, false otherwise
392 */
393 1572 bool Catalog::ListingMd5Path(const shash::Md5 &md5path,
394 DirectoryEntryList *listing,
395 const bool expand_symlink) const {
396
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 1572 assert(IsInitialized());
397
398 1572 const MutexLockGuard m(lock_);
399
400
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 1572 sql_listing_->BindPathHash(md5path);
401
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 4682 while (sql_listing_->FetchRow()) {
402
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 3110 DirectoryEntry dirent = sql_listing_->GetDirent(this, expand_symlink);
403
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 3110 FixTransitionPoint(md5path, &dirent);
404
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 3110 listing->push_back(dirent);
405 3110 }
406
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 1572 sql_listing_->Reset();
407
408 1572 return true;
409 1572 }
410
411
412 94 bool Catalog::AllChunksBegin() { return sql_all_chunks_->Open(); }
413
414
415 517 bool Catalog::AllChunksNext(shash::Any *hash,
416 zlib::Algorithms *compression_alg) {
417 517 return sql_all_chunks_->Next(hash, compression_alg);
418 }
419
420
421 94 bool Catalog::AllChunksEnd() { return sql_all_chunks_->Close(); }
422
423
424 /**
425 * Hash algorithm is given by the unchunked file.
426 * Could be figured out by a join but it is faster if the user of this
427 * method tells us.
428 */
429 47 bool Catalog::ListMd5PathChunks(const shash::Md5 &md5path,
430 const shash::Algorithms interpret_hashes_as,
431 FileChunkList *chunks) const {
432
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 47 assert(IsInitialized() && chunks->IsEmpty());
433
434 47 const MutexLockGuard m(lock_);
435
436
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 47 sql_chunks_listing_->BindPathHash(md5path);
437
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 94 while (sql_chunks_listing_->FetchRow()) {
438
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 47 chunks->PushBack(sql_chunks_listing_->GetFileChunk(interpret_hashes_as));
439 }
440
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 47 sql_chunks_listing_->Reset();
441
442 47 return true;
443 47 }
444
445
446 /**
447 * Only used by the garbage collection
448 */
449 94 const Catalog::HashVector &Catalog::GetReferencedObjects() const {
450
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 94 if (!referenced_hashes_.empty()) {
451 ✗ return referenced_hashes_;
452 }
453
454 // retrieve all referenced content hashes of both files and file chunks
455
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 94 SqlListContentHashes list_content_hashes(database());
456
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 705 while (list_content_hashes.FetchRow()) {
457
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 611 referenced_hashes_.push_back(list_content_hashes.GetHash());
458 }
459
460 94 return referenced_hashes_;
461 94 }
462
463
464 1582 void Catalog::TakeDatabaseFileOwnership() {
465 1582 managed_database_ = true;
466
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 1582 if (NULL != database_) {
467 1455 database_->TakeFileOwnership();
468 }
469 1582 }
470
471
472 47 void Catalog::DropDatabaseFileOwnership() {
473 47 managed_database_ = false;
474
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 47 if (NULL != database_) {
475 47 database_->DropFileOwnership();
476 }
477 47 }
478
479
480 451 uint64_t Catalog::GetTTL() const {
481 451 const MutexLockGuard m(lock_);
482
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 902 return database().GetPropertyDefault<uint64_t>("TTL", kDefaultTTL);
483 451 }
484
485
486 ✗ bool Catalog::HasExplicitTTL() const {
487 ✗ const MutexLockGuard m(lock_);
488 ✗ return database().HasProperty("TTL");
489 }
490
491
492 1049 bool Catalog::GetVOMSAuthz(string *authz) const {
493 bool result;
494 1049 const MutexLockGuard m(lock_);
495
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 1049 if (voms_authz_status_ == kVomsPresent) {
496 ✗ if (authz) {
497 ✗ *authz = voms_authz_;
498 }
499 ✗ result = true;
500
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 1049 } else if (voms_authz_status_ == kVomsNone) {
501 ✗ result = false;
502 } else {
503
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 1049 if (database().HasProperty("voms_authz")) {
504 ✗ voms_authz_ = database().GetProperty<string>("voms_authz");
505 ✗ if (authz) {
506 ✗ *authz = voms_authz_;
507 }
508 ✗ voms_authz_status_ = kVomsPresent;
509 } else {
510 1049 voms_authz_status_ = kVomsNone;
511 }
512 1049 result = (voms_authz_status_ == kVomsPresent);
513 }
514 1049 return result;
515 1049 }
516
517 2517 uint64_t Catalog::GetRevision() const {
518 2517 const MutexLockGuard m(lock_);
519
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 5034 return database().GetPropertyDefault<uint64_t>("revision", 0);
520 2517 }
521
522 1143 uint64_t Catalog::GetLastModified() const {
523
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 1143 const std::string prop_name = "last_modified";
524
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 1143 return (database().HasProperty(prop_name))
525
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 1143 ? database().GetProperty<int>(prop_name)
526 1143 : 0u;
527 1143 }
528
529
530 ✗ uint64_t Catalog::GetNumChunks() const {
531 ✗ return counters_.Get("self_regular") + counters_.Get("self_chunks");
532 }
533
534
535 94 uint64_t Catalog::GetNumEntries() const {
536
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 94 const string sql = "SELECT count(*) FROM catalog;";
537
538 94 const MutexLockGuard m(lock_);
539
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 94 SqlCatalog stmt(database(), sql);
540
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 188 return (stmt.FetchRow()) ? stmt.RetrieveInt64(0) : 0;
541 94 }
542
543
544 94 shash::Any Catalog::GetPreviousRevision() const {
545 94 const MutexLockGuard m(lock_);
546 94 const std::string hash_string = database().GetPropertyDefault<std::string>(
547
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 188 "previous_revision", "");
548 94 return (!hash_string.empty())
549
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 47 ? shash::MkFromHexPtr(shash::HexPtr(hash_string),
550 shash::kSuffixCatalog)
551
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 188 : shash::Any();
552 94 }
553
554
555 47 string Catalog::PrintMemStatistics() const {
556 47 sqlite::MemStatistics stats;
557 {
558 47 const MutexLockGuard m(lock_);
559
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 47 database().GetMemStatistics(&stats);
560 47 }
561
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 94 return string(mountpoint().GetChars(), mountpoint().GetLength()) + ": "
562
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 188 + StringifyInt(stats.lookaside_slots_used) + " / "
563
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564
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565
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567
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568
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569
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570
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 188 + StringifyInt(stats.schema_used / 1024) + " kB schema -- "
571
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 188 + StringifyInt(stats.stmt_used / 1024) + " kB statements";
572 }
573
574
575 /**
576 * Determine the actual inode of a DirectoryEntry.
577 * The first used entry from a hardlink group deterimines the inode of the
578 * others.
579 * @param row_id the row id of a read row in the sqlite database
580 * @param hardlink_group the id of a possibly present hardlink group
581 * @return the assigned inode number
582 */
583 14456 inode_t Catalog::GetMangledInode(const uint64_t row_id,
584 const uint64_t hardlink_group) const {
585
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 14456 assert(IsInitialized());
586
587
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 14456 if (inode_range_.IsDummy()) {
588 797 return DirectoryEntry::kInvalidInode;
589 }
590
591 13659 inode_t inode = row_id + inode_range_.offset;
592
593 // Hardlinks are encoded in catalog-wide unique hard link group ids.
594 // These ids must be resolved to actual inode relationships at runtime.
595
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 13659 if (hardlink_group > 0) {
596 ✗ const HardlinkGroupMap::const_iterator inode_iter = hardlink_groups_.find(
597 ✗ hardlink_group);
598
599 // Use cached entry if possible
600 ✗ if (inode_iter == hardlink_groups_.end()) {
601 ✗ hardlink_groups_[hardlink_group] = inode;
602 } else {
603 ✗ inode = inode_iter->second;
604 }
605 }
606
607
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 13659 if (inode_annotation_) {
608 ✗ inode = inode_annotation_->Annotate(inode);
609 }
610
611 13659 return inode;
612 }
613
614
615 /**
616 * Get a list of all registered nested catalogs and bind mountpoints in this
617 * catalog.
618 * @return a list of all nested catalog and bind mountpoints.
619 */
620 7732 const Catalog::NestedCatalogList &Catalog::ListNestedCatalogs() const {
621 7732 const MutexLockGuard m(lock_);
622
623
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 7732 if (nested_catalog_cache_dirty_) {
624
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 1599 LogCvmfs(kLogCatalog, kLogDebug, "refreshing nested catalog cache of '%s'",
625
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 3198 mountpoint().c_str());
626
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 2418 while (sql_list_nested_->FetchRow()) {
627
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 819 NestedCatalog nested;
628
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 819 nested.mountpoint = PlantPath(sql_list_nested_->GetPath());
629
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 819 nested.hash = sql_list_nested_->GetContentHash();
630
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 819 nested.size = sql_list_nested_->GetSize();
631
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 819 nested_catalog_cache_.push_back(nested);
632 819 }
633
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 1599 sql_list_nested_->Reset();
634 1599 nested_catalog_cache_dirty_ = false;
635 }
636
637 7732 return nested_catalog_cache_;
638 7732 }
639
640
641 /**
642 * Get a list of all registered nested catalogs without bind mountpoints. Used
643 * for replication and garbage collection.
644 * @return a list of all nested catalogs.
645 */
646 783 const Catalog::NestedCatalogList Catalog::ListOwnNestedCatalogs() const {
647 783 NestedCatalogList result;
648
649 783 const MutexLockGuard m(lock_);
650
651
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 890 while (sql_own_list_nested_->FetchRow()) {
652
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 107 NestedCatalog nested;
653
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 107 nested.mountpoint = PlantPath(sql_own_list_nested_->GetPath());
654
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 107 nested.hash = sql_own_list_nested_->GetContentHash();
655
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 107 nested.size = sql_own_list_nested_->GetSize();
656
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 107 result.push_back(nested);
657 107 }
658
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 783 sql_own_list_nested_->Reset();
659
660 1566 return result;
661 783 }
662
663
664 /**
665 * Drops the nested catalog cache. Usually this is only useful in subclasses
666 * that implement writable catalogs.
667 *
668 * Note: this action is _not_ secured by the catalog's mutex. If serialisation
669 * is required the subclass needs to ensure that.
670 */
671 1788 void Catalog::ResetNestedCatalogCacheUnprotected() {
672 1788 nested_catalog_cache_.clear();
673 1788 nested_catalog_cache_dirty_ = true;
674 1788 }
675
676
677 /**
678 * Looks for a specific registered nested catalog based on a path.
679 */
680 1140 bool Catalog::FindNested(const PathString &mountpoint, shash::Any *hash,
681 uint64_t *size) const {
682 1140 const MutexLockGuard m(lock_);
683
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 1140 const PathString normalized_mountpoint = NormalizePath2(mountpoint);
684
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 1140 sql_lookup_nested_->BindSearchPath(normalized_mountpoint);
685
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 1140 const bool found = sql_lookup_nested_->FetchRow();
686
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 1140 if (found && (hash != NULL)) {
687
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 1083 *hash = sql_lookup_nested_->GetContentHash();
688
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 1083 *size = sql_lookup_nested_->GetSize();
689 }
690
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 1140 sql_lookup_nested_->Reset();
691
692 1140 return found;
693 1140 }
694
695
696 /**
697 * Sets a new object to do inode annotations (or set to NULL)
698 * The annotation object is not owned by the catalog.
699 */
700 1868 void Catalog::SetInodeAnnotation(InodeAnnotation *new_annotation) {
701 1868 const MutexLockGuard m(lock_);
702 // Since annotated inodes could come back to the catalog in order to
703 // get stripped, exchanging the annotation is not allowed
704
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 1868 assert((inode_annotation_ == NULL) || (inode_annotation_ == new_annotation));
705 1868 inode_annotation_ = new_annotation;
706 1868 }
707
708
709 1868 void Catalog::SetOwnerMaps(const OwnerMap *uid_map, const OwnerMap *gid_map) {
710
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 1868 uid_map_ = (uid_map && uid_map->HasEffect()) ? uid_map : NULL;
711
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 1868 gid_map_ = (gid_map && gid_map->HasEffect()) ? gid_map : NULL;
712 1868 }
713
714
715 /**
716 * Add a Catalog as child to this Catalog.
717 * @param child the Catalog to define as child
718 */
719 1336 void Catalog::AddChild(Catalog *child) {
720
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 1336 assert(NULL == FindChild(child->mountpoint()));
721
722 1336 const MutexLockGuard m(lock_);
723
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 1336 children_[child->mountpoint()] = child;
724 1336 child->set_parent(this);
725 1336 }
726
727
728 /**
729 * Removes a Catalog from the children list of this Catalog
730 * @param child the Catalog to delete as child
731 */
732 817 void Catalog::RemoveChild(Catalog *child) {
733
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 817 assert(NULL != FindChild(child->mountpoint()));
734
735 817 const MutexLockGuard m(lock_);
736 817 child->set_parent(NULL);
737
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 817 children_.erase(child->mountpoint());
738 817 }
739
740
741 2881 CatalogList Catalog::GetChildren() const {
742 2881 CatalogList result;
743
744 2881 const MutexLockGuard m(lock_);
745 5762 for (NestedCatalogMap::const_iterator i = children_.begin(),
746 2881 iEnd = children_.end();
747
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 4250 i != iEnd;
748 1369 ++i) {
749
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 1369 result.push_back(i->second);
750 }
751
752 5762 return result;
753 2881 }
754
755
756 /**
757 * Find the nested catalog that serves the given path.
758 * It might be possible that the path is in fact served by a child of the found
759 * nested catalog.
760 * @param path the path to find a best fitting catalog for
761 * @return a pointer to the best fitting child or NULL if it does not fit at all
762 */
763 8042 Catalog *Catalog::FindSubtree(const PathString &path) const {
764 // Check if this catalog fits the beginning of the path.
765
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 8042 if (!path.StartsWith(mountpoint_))
766 ✗ return NULL;
767
768
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 8042 PathString remaining(path.Suffix(mountpoint_.GetLength()));
769
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 8042 remaining.Append("/", 1);
770
771 // now we recombine the path elements successively
772 // in order to find a child which serves a part of the path
773
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 8042 PathString path_prefix(mountpoint_);
774 8042 Catalog *result = NULL;
775 // Skip the first '/'
776
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 8042 path_prefix.Append("/", 1);
777 8042 const char *c = remaining.GetChars() + 1;
778
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 77705 for (unsigned i = 1; i < remaining.GetLength(); ++i, ++c) {
779
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 70799 if (*c == '/') {
780
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 16103 result = FindChild(path_prefix);
781
782 // If we found a child serving a part of the path we can stop searching.
783 // Remaining sub path elements are possibly served by a grand child.
784
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 16103 if (result != NULL)
785 1136 break;
786 }
787
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 69663 path_prefix.Append(c, 1);
788 }
789
790 8042 return result;
791 8042 }
792
793
794 /**
795 * Looks for a child catalog, which is a subset of all registered nested
796 * catalogs.
797 */
798 18383 Catalog *Catalog::FindChild(const PathString &mountpoint) const {
799 18383 NestedCatalogMap::const_iterator nested_iter;
800
801 18383 const MutexLockGuard m(lock_);
802
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 18383 nested_iter = children_.find(mountpoint);
803
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 20383 Catalog *result = (nested_iter == children_.end()) ? NULL
804 2000 : nested_iter->second;
805
806 18383 return result;
807 18383 }
808
809
810 /**
811 * For the transition points for nested catalogs and bind mountpoints, the inode
812 * is ambiguous. It has to be set to the parent inode because nested catalogs
813 * are lazily loaded.
814 * @param md5path the MD5 hash of the entry to check
815 * @param dirent the DirectoryEntry to perform coherence fixes on
816 */
817 14409 void Catalog::FixTransitionPoint(const shash::Md5 &md5path,
818 DirectoryEntry *dirent) const {
819
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 14409 if (!HasParent())
820 11673 return;
821
822
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 2736 if (dirent->IsNestedCatalogRoot()) {
823 // Normal nested catalog
824
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 308 DirectoryEntry parent_dirent;
825
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 308 const bool retval = parent_->LookupMd5Path(md5path, &parent_dirent);
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 308 assert(retval);
827 308 dirent->set_inode(parent_dirent.inode());
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 2736 } else if (md5path == kMd5PathEmpty) {
829 // Bind mountpoint
830 ✗ DirectoryEntry parent_dirent;
831 ✗ const bool retval = parent_->LookupPath(mountpoint_, &parent_dirent);
832 ✗ assert(retval);
833 ✗ dirent->set_inode(parent_dirent.inode());
834 }
835 }
836
837 } // namespace catalog
838