GCC Code Coverage Report

Directory: cvmfs/
File: cvmfs/catalog.cc
Date: 2026-04-26 02:35:59
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
9 #include <cassert>
10
11 #include "catalog_mgr.h"
12 #include "util/logging.h"
13 #include "util/smalloc.h"
14
15 using namespace std; // NOLINT
16
17 namespace catalog {
18
19 const shash::Md5 Catalog::kMd5PathEmpty("", 0);
20
21
22 /**
23 * Open a catalog outside the framework of a catalog manager.
24 */
25 461 Catalog *Catalog::AttachFreely(const string &imaginary_mountpoint,
26 const string &file,
27 const shash::Any &catalog_hash,
28 Catalog *parent,
29 const bool is_nested) {
30 Catalog *catalog = new Catalog(
31 461 PathString(imaginary_mountpoint.data(), imaginary_mountpoint.length()),
32 catalog_hash,
33 parent,
34
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 461 is_nested);
35 461 const bool successful_init = catalog->InitStandalone(file);
36
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 461 if (!successful_init) {
37
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 48 delete catalog;
38 48 return NULL;
39 }
40 413 return catalog;
41 }
42
43
44 4641 Catalog::Catalog(const PathString &mountpoint,
45 const shash::Any &catalog_hash,
46 Catalog *parent,
47 4641 const bool is_nested)
48 4641 : catalog_hash_(catalog_hash)
49
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 4641 , mountpoint_(mountpoint)
50
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 4641 , is_regular_mountpoint_(mountpoint_ == root_prefix_)
51 4641 , volatile_flag_(false)
52
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 4641 , is_root_(parent == NULL && !is_nested)
53 4641 , managed_database_(false)
54 4641 , parent_(parent)
55 4641 , nested_catalog_cache_dirty_(true)
56 4641 , voms_authz_status_(kVomsUnknown)
57
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 9282 , initialized_(false) {
58 4641 max_row_id_ = 0;
59 4641 inode_annotation_ = NULL;
60 4641 lock_ = reinterpret_cast<pthread_mutex_t *>(smalloc(sizeof(pthread_mutex_t)));
61 4641 const int retval = pthread_mutex_init(lock_, NULL);
62
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 4641 assert(retval == 0);
63
64 4641 database_ = NULL;
65 4641 uid_map_ = NULL;
66 4641 gid_map_ = NULL;
67 4641 sql_listing_ = NULL;
68 4641 sql_lookup_md5path_ = NULL;
69 4641 sql_lookup_nested_ = NULL;
70 4641 sql_list_nested_ = NULL;
71 4641 sql_own_list_nested_ = NULL;
72 4641 sql_all_chunks_ = NULL;
73 4641 sql_chunks_listing_ = NULL;
74 4641 sql_lookup_xattrs_ = NULL;
75 4641 }
76
77
78 12444 Catalog::~Catalog() {
79 9180 pthread_mutex_destroy(lock_);
80 9180 free(lock_);
81 9180 FinalizePreparedStatements();
82
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 9180 delete database_;
83 12444 }
84
85
86 /**
87 * InitPreparedStatement uses polymorphism in case of a r/w catalog.
88 * FinalizePreparedStatements is called in the destructor where
89 * polymorphism does not work any more and has to be called both in
90 * the WritableCatalog and the Catalog destructor
91 */
92 4263 void Catalog::InitPreparedStatements() {
93
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 4263 sql_listing_ = new SqlListing(database());
94
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 4263 sql_lookup_md5path_ = new SqlLookupPathHash(database());
95
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 4263 sql_lookup_nested_ = new SqlNestedCatalogLookup(database());
96
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 4263 sql_list_nested_ = new SqlNestedCatalogListing(database());
97
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 4263 sql_own_list_nested_ = new SqlOwnNestedCatalogListing(database());
98
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 4263 sql_all_chunks_ = new SqlAllChunks(database());
99
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 4263 sql_chunks_listing_ = new SqlChunksListing(database());
100
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 4263 sql_lookup_xattrs_ = new SqlLookupXattrs(database());
101 4263 }
102
103
104 4590 void Catalog::FinalizePreparedStatements() {
105
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 4590 delete sql_lookup_xattrs_;
106
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 4590 delete sql_chunks_listing_;
107
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 4590 delete sql_all_chunks_;
108
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 4590 delete sql_listing_;
109
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 4590 delete sql_lookup_md5path_;
110
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 4590 delete sql_lookup_nested_;
111
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 4590 delete sql_list_nested_;
112
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 4590 delete sql_own_list_nested_;
113 4590 }
114
115
116 1507 bool Catalog::InitStandalone(const std::string &database_file) {
117
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 1507 const bool retval = OpenDatabase(database_file);
118
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 1507 if (!retval) {
119 48 return false;
120 }
121
122 1459 InodeRange inode_range;
123 1459 inode_range.MakeDummy();
124 1459 set_inode_range(inode_range);
125 1459 return true;
126 }
127
128
129 6072 bool Catalog::ReadCatalogCounters() {
130
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 6072 assert(database_ != NULL);
131 bool statistics_loaded;
132 6072 if (database().schema_version() < CatalogDatabase::kLatestSupportedSchema
133
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 6072 - CatalogDatabase::kSchemaEpsilon) {
134 94 statistics_loaded = counters_.ReadFromDatabase(database(),
135 LegacyMode::kLegacy);
136
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 5978 } else if (database().schema_revision() < 2) {
137 ✗ statistics_loaded = counters_.ReadFromDatabase(database(),
138 LegacyMode::kNoXattrs);
139
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 5978 } else if (database().schema_revision() < 3) {
140 ✗ statistics_loaded = counters_.ReadFromDatabase(database(),
141 LegacyMode::kNoExternals);
142
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 5978 } else if (database().schema_revision() < 5) {
143 ✗ statistics_loaded = counters_.ReadFromDatabase(database(),
144 LegacyMode::kNoSpecials);
145 } else {
146 5978 statistics_loaded = counters_.ReadFromDatabase(database());
147 }
148 6072 return statistics_loaded;
149 }
150
151
152 /**
153 * Establishes the database structures and opens the sqlite database file.
154 * @param db_path the absolute path to the database file on local file system
155 * @return true on successful initialization otherwise false
156 */
157 4359 bool Catalog::OpenDatabase(const string &db_path) {
158
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 4359 database_ = CatalogDatabase::Open(db_path, DatabaseOpenMode());
159
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 4359 if (NULL == database_) {
160 96 return false;
161 }
162
163
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 4263 if (database_->IsEqualSchema(database_->schema_version(), 1.0)) {
164 // Possible fix-up for database layout lacking the content hash of
165 // nested catalogs
166 SqlCatalog sql_has_nested_sha1(
167 94 database(),
168 "SELECT count(*) FROM sqlite_master "
169
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 282 "WHERE type='table' AND name='nested_catalogs' AND sql LIKE '%sha1%';");
170
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 94 const bool retval = sql_has_nested_sha1.FetchRow();
171
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 94 assert(retval == true);
172
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 94 const bool has_nested_sha1 = sql_has_nested_sha1.RetrieveInt64(0);
173
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 94 if (!has_nested_sha1) {
174 48 database_->EnforceSchema(0.9, 0);
175 }
176 94 }
177
178
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 4263 InitPreparedStatements();
179
180 // Set the database file ownership if requested
181
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 4263 if (managed_database_) {
182
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 293 database_->TakeFileOwnership();
183 }
184
185 // Find out the maximum row id of this database file
186
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 8526 SqlCatalog sql_max_row_id(database(), "SELECT MAX(rowid) FROM catalog;");
187
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 4263 if (!sql_max_row_id.FetchRow()) {
188 ✗ LogCvmfs(kLogCatalog, kLogDebug,
189 "Cannot retrieve maximal row id for database file %s "
190 "(SqliteErrorcode: %d)",
191 db_path.c_str(), sql_max_row_id.GetLastError());
192 ✗ return false;
193 }
194
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 4263 max_row_id_ = sql_max_row_id.RetrieveInt64(0);
195
196 // Get root prefix
197
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 4263 if (database_->HasProperty("root_prefix")) {
198 1441 const std::string root_prefix = database_->GetProperty<std::string>(
199
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 2882 "root_prefix");
200
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 1441 root_prefix_.Assign(root_prefix.data(), root_prefix.size());
201
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 1441 LogCvmfs(kLogCatalog, kLogDebug,
202 "found root prefix %s in root catalog file %s",
203 root_prefix_.c_str(), db_path.c_str());
204
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 1441 is_regular_mountpoint_ = (root_prefix_ == mountpoint_);
205 1441 } else {
206
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 2822 LogCvmfs(kLogCatalog, kLogDebug, "no root prefix for root catalog file %s",
207 db_path.c_str());
208 }
209
210 // Get volatile content flag
211
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 4263 volatile_flag_ = database_->GetPropertyDefault<bool>("volatile",
212 4263 volatile_flag_);
213
214 // Read Catalog Counter Statistics
215
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 4263 if (!ReadCatalogCounters()) {
216 ✗ LogCvmfs(kLogCatalog, kLogStderr,
217 "failed to load statistics counters for catalog %s (file %s)",
218 mountpoint_.c_str(), db_path.c_str());
219 ✗ return false;
220 }
221
222
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 4263 if (HasParent()) {
223
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 1407 parent_->AddChild(this);
224 }
225
226 4263 initialized_ = true;
227 4263 return true;
228 4263 }
229
230
231 /**
232 * Removes the mountpoint and prepends the root prefix to path
233 */
234 15417 shash::Md5 Catalog::NormalizePath(const PathString &path) const {
235
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 15417 if (is_regular_mountpoint_)
236
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 15221 return shash::Md5(path.GetChars(), path.GetLength());
237
238
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 196 assert(path.GetLength() >= mountpoint_.GetLength());
239 // Piecewise hash calculation: root_prefix plus tail of path
240
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 196 shash::Any result(shash::kMd5);
241
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 196 shash::ContextPtr ctx(shash::kMd5);
242 196 ctx.buffer = alloca(ctx.size);
243
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 196 shash::Init(ctx);
244
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 392 shash::Update(
245 196 reinterpret_cast<const unsigned char *>(root_prefix_.GetChars()),
246 root_prefix_.GetLength(),
247 ctx);
248 196 shash::Update(reinterpret_cast<const unsigned char *>(path.GetChars())
249
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 196 + mountpoint_.GetLength(),
250 196 path.GetLength() - mountpoint_.GetLength(),
251 ctx);
252
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 196 shash::Final(ctx, &result);
253
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 196 return result.CastToMd5();
254 }
255
256
257 /**
258 * Same as NormalizePath but returns a PathString instead of an Md5 hash.
259 */
260 1344 PathString Catalog::NormalizePath2(const PathString &path) const {
261
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 1344 if (is_regular_mountpoint_)
262
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 1160 return path;
263
264
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 184 assert(path.GetLength() >= mountpoint_.GetLength());
265
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 184 PathString result = root_prefix_;
266
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 184 const PathString suffix = path.Suffix(mountpoint_.GetLength());
267
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 184 result.Append(suffix.GetChars(), suffix.GetLength());
268
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 184 return result;
269 184 }
270
271
272 /**
273 * The opposite of NormalizePath: from a full path remove the root prefix and
274 * add the catalogs current mountpoint. Needed for normalized paths from the
275 * SQlite tables, such as nested catalog entry points.
276 */
277 1320 PathString Catalog::PlantPath(const PathString &path) const {
278
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 1320 if (is_regular_mountpoint_)
279
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 1128 return path;
280
281
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 192 assert(path.GetLength() >= root_prefix_.GetLength());
282
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 192 PathString result = mountpoint_;
283
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 192 const PathString suffix = path.Suffix(root_prefix_.GetLength());
284
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 192 result.Append(suffix.GetChars(), suffix.GetLength());
285
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 192 return result;
286 192 }
287
288
289 /**
290 * Performs a lookup on this Catalog for a given MD5 path hash.
291 * @param md5path the MD5 hash of the searched path
292 * @param expand_symlink indicates if variables in symlink should be resolved
293 * @param dirent will be set to the found DirectoryEntry
294 * @return true if DirectoryEntry was successfully found, false otherwise
295 */
296 12727 bool Catalog::LookupEntry(const shash::Md5 &md5path, const bool expand_symlink,
297 DirectoryEntry *dirent) const {
298
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 12727 assert(IsInitialized());
299
300 12727 const MutexLockGuard m(lock_);
301
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 12727 sql_lookup_md5path_->BindPathHash(md5path);
302
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 12727 const bool found = sql_lookup_md5path_->FetchRow();
303
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 12727 if (found && (dirent != NULL)) {
304
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 12355 *dirent = sql_lookup_md5path_->GetDirent(this, expand_symlink);
305
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 12355 FixTransitionPoint(md5path, dirent);
306 }
307
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 12727 sql_lookup_md5path_->Reset();
308
309 12727 return found;
310 12727 }
311
312
313 /**
314 * Performs a lookup on this Catalog for a given MD5 path hash.
315 * @param md5path the MD5 hash of the searched path
316 * @param dirent will be set to the found DirectoryEntry
317 * @return true if DirectoryEntry was successfully found, false otherwise
318 */
319 12681 bool Catalog::LookupMd5Path(const shash::Md5 &md5path,
320 DirectoryEntry *dirent) const {
321 12681 return LookupEntry(md5path, true, dirent);
322 }
323
324
325 46 bool Catalog::LookupRawSymlink(const PathString &path,
326 LinkString *raw_symlink) const {
327
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 46 DirectoryEntry dirent;
328
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 46 const bool result = (LookupEntry(NormalizePath(path), false, &dirent));
329
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 46 if (result)
330
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 46 raw_symlink->Assign(dirent.symlink());
331 46 return result;
332 46 }
333
334
335 46 bool Catalog::LookupXattrsMd5Path(const shash::Md5 &md5path,
336 XattrList *xattrs) const {
337
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 46 assert(IsInitialized());
338
339 46 const MutexLockGuard m(lock_);
340
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 46 sql_lookup_xattrs_->BindPathHash(md5path);
341
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 46 const bool found = sql_lookup_xattrs_->FetchRow();
342
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 46 if (found && (xattrs != NULL)) {
343
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 46 *xattrs = sql_lookup_xattrs_->GetXattrs();
344 }
345
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 46 sql_lookup_xattrs_->Reset();
346
347 46 return found;
348 46 }
349
350
351 /**
352 * Perform a listing of the directory with the given MD5 path hash.
353 * @param path_hash the MD5 hash of the path of the directory to list
354 * @param listing will be set to the resulting DirectoryEntryList
355 * @return true on successful listing, false otherwise
356 */
357 213 bool Catalog::ListingMd5PathStat(const shash::Md5 &md5path,
358 StatEntryList *listing) const {
359
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 213 assert(IsInitialized());
360
361
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 213 DirectoryEntry dirent;
362
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 213 StatEntry entry;
363
364 213 const MutexLockGuard m(lock_);
365
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 213 sql_listing_->BindPathHash(md5path);
366
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 709 while (sql_listing_->FetchRow()) {
367
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 496 dirent = sql_listing_->GetDirent(this);
368
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 496 if (dirent.IsHidden())
369 48 continue;
370
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 448 FixTransitionPoint(md5path, &dirent);
371
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 448 entry.name = dirent.name();
372
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 448 entry.info = dirent.GetStatStructure();
373
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 448 listing->PushBack(entry);
374 }
375
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 213 sql_listing_->Reset();
376
377 213 return true;
378 213 }
379
380
381 /**
382 * Perform a listing of the directory with the given MD5 path hash.
383 * Returns only struct stat values
384 * @param path_hash the MD5 hash of the path of the directory to list
385 * @param listing will be set to the resulting DirectoryEntryList
386 * @param expand_symlink defines if magic symlinks should be resolved
387 * @return true on successful listing, false otherwise
388 */
389 2364 bool Catalog::ListingMd5Path(const shash::Md5 &md5path,
390 DirectoryEntryList *listing,
391 const bool expand_symlink) const {
392
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 2364 assert(IsInitialized());
393
394 2364 const MutexLockGuard m(lock_);
395
396
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 2364 sql_listing_->BindPathHash(md5path);
397
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 6277 while (sql_listing_->FetchRow()) {
398
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 3913 DirectoryEntry dirent = sql_listing_->GetDirent(this, expand_symlink);
399
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 3913 FixTransitionPoint(md5path, &dirent);
400
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 3913 listing->push_back(dirent);
401 3913 }
402
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 2364 sql_listing_->Reset();
403
404 2364 return true;
405 2364 }
406
407
408 96 bool Catalog::AllChunksBegin() { return sql_all_chunks_->Open(); }
409
410
411 480 bool Catalog::AllChunksNext(shash::Any *hash,
412 zlib::Algorithms *compression_alg) {
413 480 return sql_all_chunks_->Next(hash, compression_alg);
414 }
415
416
417 96 bool Catalog::AllChunksEnd() { return sql_all_chunks_->Close(); }
418
419
420 /**
421 * Hash algorithm is given by the unchunked file.
422 * Could be figured out by a join but it is faster if the user of this
423 * method tells us.
424 */
425 48 bool Catalog::ListMd5PathChunks(const shash::Md5 &md5path,
426 const shash::Algorithms interpret_hashes_as,
427 FileChunkList *chunks) const {
428
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 48 assert(IsInitialized() && chunks->IsEmpty());
429
430 48 const MutexLockGuard m(lock_);
431
432
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 48 sql_chunks_listing_->BindPathHash(md5path);
433
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 96 while (sql_chunks_listing_->FetchRow()) {
434
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 48 chunks->PushBack(sql_chunks_listing_->GetFileChunk(interpret_hashes_as));
435 }
436
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 48 sql_chunks_listing_->Reset();
437
438 48 return true;
439 48 }
440
441
442 /**
443 * Only used by the garbage collection
444 */
445 96 const Catalog::HashVector &Catalog::GetReferencedObjects() const {
446
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 96 if (!referenced_hashes_.empty()) {
447 ✗ return referenced_hashes_;
448 }
449
450 // retrieve all referenced content hashes of both files and file chunks
451
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 96 SqlListContentHashes list_content_hashes(database());
452
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 720 while (list_content_hashes.FetchRow()) {
453
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 624 referenced_hashes_.push_back(list_content_hashes.GetHash());
454 }
455
456 96 return referenced_hashes_;
457 96 }
458
459
460 2147 void Catalog::TakeDatabaseFileOwnership() {
461 2147 managed_database_ = true;
462
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 2147 if (NULL != database_) {
463 1854 database_->TakeFileOwnership();
464 }
465 2147 }
466
467
468 48 void Catalog::DropDatabaseFileOwnership() {
469 48 managed_database_ = false;
470
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 48 if (NULL != database_) {
471 48 database_->DropFileOwnership();
472 }
473 48 }
474
475
476 711 uint64_t Catalog::GetTTL() const {
477 711 const MutexLockGuard m(lock_);
478
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 1422 return database().GetPropertyDefault<uint64_t>("TTL", kDefaultTTL);
479 711 }
480
481
482 ✗ bool Catalog::HasExplicitTTL() const {
483 ✗ const MutexLockGuard m(lock_);
484 ✗ return database().HasProperty("TTL");
485 }
486
487
488 1873 bool Catalog::GetVOMSAuthz(string *authz) const {
489 bool result;
490 1873 const MutexLockGuard m(lock_);
491
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 1873 if (voms_authz_status_ == kVomsPresent) {
492 ✗ if (authz) {
493 ✗ *authz = voms_authz_;
494 }
495 ✗ result = true;
496
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 1873 } else if (voms_authz_status_ == kVomsNone) {
497 ✗ result = false;
498 } else {
499
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 1873 if (database().HasProperty("voms_authz")) {
500 ✗ voms_authz_ = database().GetProperty<string>("voms_authz");
501 ✗ if (authz) {
502 ✗ *authz = voms_authz_;
503 }
504 ✗ voms_authz_status_ = kVomsPresent;
505 } else {
506 1873 voms_authz_status_ = kVomsNone;
507 }
508 1873 result = (voms_authz_status_ == kVomsPresent);
509 }
510 1873 return result;
511 1873 }
512
513 3876 uint64_t Catalog::GetRevision() const {
514 3876 const MutexLockGuard m(lock_);
515
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 7752 return database().GetPropertyDefault<uint64_t>("revision", 0);
516 3876 }
517
518 1969 uint64_t Catalog::GetLastModified() const {
519
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 1969 const std::string prop_name = "last_modified";
520
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 1969 return (database().HasProperty(prop_name))
521
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 1969 ? database().GetProperty<int>(prop_name)
522 1969 : 0u;
523 1969 }
524
525
526 ✗ uint64_t Catalog::GetNumChunks() const {
527 ✗ return counters_.Get("self_regular") + counters_.Get("self_chunks");
528 }
529
530
531 96 uint64_t Catalog::GetNumEntries() const {
532
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 96 const string sql = "SELECT count(*) FROM catalog;";
533
534 96 const MutexLockGuard m(lock_);
535
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 96 SqlCatalog stmt(database(), sql);
536
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 192 return (stmt.FetchRow()) ? stmt.RetrieveInt64(0) : 0;
537 96 }
538
539
540 96 shash::Any Catalog::GetPreviousRevision() const {
541 96 const MutexLockGuard m(lock_);
542 96 const std::string hash_string = database().GetPropertyDefault<std::string>(
543
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 192 "previous_revision", "");
544 96 return (!hash_string.empty())
545
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 48 ? shash::MkFromHexPtr(shash::HexPtr(hash_string),
546 shash::kSuffixCatalog)
547
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 192 : shash::Any();
548 96 }
549
550
551 48 string Catalog::PrintMemStatistics() const {
552 48 sqlite::MemStatistics stats;
553 {
554 48 const MutexLockGuard m(lock_);
555
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 48 database().GetMemStatistics(&stats);
556 48 }
557
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 96 return string(mountpoint().GetChars(), mountpoint().GetLength()) + ": "
558
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 192 + StringifyInt(stats.lookaside_slots_used) + " / "
559
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560
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561
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562
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563
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564
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565
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566
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 192 + StringifyInt(stats.schema_used / 1024) + " kB schema -- "
567
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 192 + StringifyInt(stats.stmt_used / 1024) + " kB statements";
568 }
569
570
571 /**
572 * Determine the actual inode of a DirectoryEntry.
573 * The first used entry from a hardlink group deterimines the inode of the
574 * others.
575 * @param row_id the row id of a read row in the sqlite database
576 * @param hardlink_group the id of a possibly present hardlink group
577 * @return the assigned inode number
578 */
579 16764 inode_t Catalog::GetMangledInode(const uint64_t row_id,
580 const uint64_t hardlink_group) const {
581
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 16764 assert(IsInitialized());
582
583
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 16764 if (inode_range_.IsDummy()) {
584 779 return DirectoryEntry::kInvalidInode;
585 }
586
587 15985 inode_t inode = row_id + inode_range_.offset;
588
589 // Hardlinks are encoded in catalog-wide unique hard link group ids.
590 // These ids must be resolved to actual inode relationships at runtime.
591
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 15985 if (hardlink_group > 0) {
592 ✗ const HardlinkGroupMap::const_iterator inode_iter = hardlink_groups_.find(
593 ✗ hardlink_group);
594
595 // Use cached entry if possible
596 ✗ if (inode_iter == hardlink_groups_.end()) {
597 ✗ hardlink_groups_[hardlink_group] = inode;
598 } else {
599 ✗ inode = inode_iter->second;
600 }
601 }
602
603
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 15985 if (inode_annotation_) {
604 ✗ inode = inode_annotation_->Annotate(inode);
605 }
606
607 15985 return inode;
608 }
609
610
611 /**
612 * Get a list of all registered nested catalogs and bind mountpoints in this
613 * catalog.
614 * @return a list of all nested catalog and bind mountpoints.
615 */
616 10125 const Catalog::NestedCatalogList &Catalog::ListNestedCatalogs() const {
617 10125 const MutexLockGuard m(lock_);
618
619
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 10125 if (nested_catalog_cache_dirty_) {
620
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 2170 LogCvmfs(kLogCatalog, kLogDebug, "refreshing nested catalog cache of '%s'",
621
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 4340 mountpoint().c_str());
622
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 3016 while (sql_list_nested_->FetchRow()) {
623
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 846 NestedCatalog nested;
624
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 846 nested.mountpoint = PlantPath(sql_list_nested_->GetPath());
625
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 846 nested.hash = sql_list_nested_->GetContentHash();
626
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 846 nested.size = sql_list_nested_->GetSize();
627
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 846 nested_catalog_cache_.push_back(nested);
628 846 }
629
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 2170 sql_list_nested_->Reset();
630 2170 nested_catalog_cache_dirty_ = false;
631 }
632
633 10125 return nested_catalog_cache_;
634 10125 }
635
636
637 /**
638 * Get a list of all registered nested catalogs without bind mountpoints. Used
639 * for replication and garbage collection.
640 * @return a list of all nested catalogs.
641 */
642 800 const Catalog::NestedCatalogList Catalog::ListOwnNestedCatalogs() const {
643 800 NestedCatalogList result;
644
645 800 const MutexLockGuard m(lock_);
646
647
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 986 while (sql_own_list_nested_->FetchRow()) {
648
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 186 NestedCatalog nested;
649
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 186 nested.mountpoint = PlantPath(sql_own_list_nested_->GetPath());
650
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 186 nested.hash = sql_own_list_nested_->GetContentHash();
651
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 186 nested.size = sql_own_list_nested_->GetSize();
652
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 186 result.push_back(nested);
653 186 }
654
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 800 sql_own_list_nested_->Reset();
655
656 1600 return result;
657 800 }
658
659
660 /**
661 * Drops the nested catalog cache. Usually this is only useful in subclasses
662 * that implement writable catalogs.
663 *
664 * Note: this action is _not_ secured by the catalog's mutex. If serialisation
665 * is required the subclass needs to ensure that.
666 */
667 1701 void Catalog::ResetNestedCatalogCacheUnprotected() {
668 1701 nested_catalog_cache_.clear();
669 1701 nested_catalog_cache_dirty_ = true;
670 1701 }
671
672
673 /**
674 * Looks for a specific registered nested catalog based on a path.
675 */
676 1068 bool Catalog::FindNested(const PathString &mountpoint, shash::Any *hash,
677 uint64_t *size) const {
678 1068 const MutexLockGuard m(lock_);
679
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 1068 const PathString normalized_mountpoint = NormalizePath2(mountpoint);
680
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 1068 sql_lookup_nested_->BindSearchPath(normalized_mountpoint);
681
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 1068 const bool found = sql_lookup_nested_->FetchRow();
682
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 1068 if (found && (hash != NULL)) {
683
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 1016 *hash = sql_lookup_nested_->GetContentHash();
684
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 1016 *size = sql_lookup_nested_->GetSize();
685 }
686
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 1068 sql_lookup_nested_->Reset();
687
688 1068 return found;
689 1068 }
690
691
692 /**
693 * Sets a new object to do inode annotations (or set to NULL)
694 * The annotation object is not owned by the catalog.
695 */
696 2756 void Catalog::SetInodeAnnotation(InodeAnnotation *new_annotation) {
697 2756 const MutexLockGuard m(lock_);
698 // Since annotated inodes could come back to the catalog in order to
699 // get stripped, exchanging the annotation is not allowed
700
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 2756 assert((inode_annotation_ == NULL) || (inode_annotation_ == new_annotation));
701 2756 inode_annotation_ = new_annotation;
702 2756 }
703
704
705 2756 void Catalog::SetOwnerMaps(const OwnerMap *uid_map, const OwnerMap *gid_map) {
706
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 2756 uid_map_ = (uid_map && uid_map->HasEffect()) ? uid_map : NULL;
707
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 2756 gid_map_ = (gid_map && gid_map->HasEffect()) ? gid_map : NULL;
708 2756 }
709
710
711 /**
712 * Add a Catalog as child to this Catalog.
713 * @param child the Catalog to define as child
714 */
715 1407 void Catalog::AddChild(Catalog *child) {
716
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 1407 assert(NULL == FindChild(child->mountpoint()));
717
718 1407 const MutexLockGuard m(lock_);
719
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 1407 children_[child->mountpoint()] = child;
720 1407 child->set_parent(this);
721 1407 }
722
723
724 /**
725 * Removes a Catalog from the children list of this Catalog
726 * @param child the Catalog to delete as child
727 */
728 881 void Catalog::RemoveChild(Catalog *child) {
729
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 881 assert(NULL != FindChild(child->mountpoint()));
730
731 881 const MutexLockGuard m(lock_);
732 881 child->set_parent(NULL);
733
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 881 children_.erase(child->mountpoint());
734 881 }
735
736
737 3948 CatalogList Catalog::GetChildren() const {
738 3948 CatalogList result;
739
740 3948 const MutexLockGuard m(lock_);
741 7896 for (NestedCatalogMap::const_iterator i = children_.begin(),
742 3948 iEnd = children_.end();
743
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 5339 i != iEnd;
744 1391 ++i) {
745
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 1391 result.push_back(i->second);
746 }
747
748 7896 return result;
749 3948 }
750
751
752 /**
753 * Find the nested catalog that serves the given path.
754 * It might be possible that the path is in fact served by a child of the found
755 * nested catalog.
756 * @param path the path to find a best fitting catalog for
757 * @return a pointer to the best fitting child or NULL if it does not fit at all
758 */
759 9923 Catalog *Catalog::FindSubtree(const PathString &path) const {
760 // Check if this catalog fits the beginning of the path.
761
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 9923 if (!path.StartsWith(mountpoint_))
762 ✗ return NULL;
763
764
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 9923 PathString remaining(path.Suffix(mountpoint_.GetLength()));
765
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 9923 remaining.Append("/", 1);
766
767 // now we recombine the path elements successively
768 // in order to find a child which serves a part of the path
769
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 9923 PathString path_prefix(mountpoint_);
770 9923 Catalog *result = NULL;
771 // Skip the first '/'
772
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 9923 path_prefix.Append("/", 1);
773 9923 const char *c = remaining.GetChars() + 1;
774
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 89066 for (unsigned i = 1; i < remaining.GetLength(); ++i, ++c) {
775
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 80116 if (*c == '/') {
776
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 18134 result = FindChild(path_prefix);
777
778 // If we found a child serving a part of the path we can stop searching.
779 // Remaining sub path elements are possibly served by a grand child.
780
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 18134 if (result != NULL)
781 973 break;
782 }
783
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 79143 path_prefix.Append(c, 1);
784 }
785
786 9923 return result;
787 9923 }
788
789
790 /**
791 * Looks for a child catalog, which is a subset of all registered nested
792 * catalogs.
793 */
794 20509 Catalog *Catalog::FindChild(const PathString &mountpoint) const {
795 20509 NestedCatalogMap::const_iterator nested_iter;
796
797 20509 const MutexLockGuard m(lock_);
798
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 20509 nested_iter = children_.find(mountpoint);
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 22424 Catalog *result = (nested_iter == children_.end()) ? NULL
800 1915 : nested_iter->second;
801
802 20509 return result;
803 20509 }
804
805
806 /**
807 * For the transition points for nested catalogs and bind mountpoints, the inode
808 * is ambiguous. It has to be set to the parent inode because nested catalogs
809 * are lazily loaded.
810 * @param md5path the MD5 hash of the entry to check
811 * @param dirent the DirectoryEntry to perform coherence fixes on
812 */
813 16716 void Catalog::FixTransitionPoint(const shash::Md5 &md5path,
814 DirectoryEntry *dirent) const {
815
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 16716 if (!HasParent())
816 13993 return;
817
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 2723 if (dirent->IsNestedCatalogRoot()) {
819 // Normal nested catalog
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 199 DirectoryEntry parent_dirent;
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 199 const bool retval = parent_->LookupMd5Path(md5path, &parent_dirent);
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 199 assert(retval);
823 199 dirent->set_inode(parent_dirent.inode());
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 2723 } else if (md5path == kMd5PathEmpty) {
825 // Bind mountpoint
826 ✗ DirectoryEntry parent_dirent;
827 ✗ const bool retval = parent_->LookupPath(mountpoint_, &parent_dirent);
828 ✗ assert(retval);
829 ✗ dirent->set_inode(parent_dirent.inode());
830 }
831 }
832
833 } // namespace catalog
834