1 | /**********************************************************************
|
---|
2 | *
|
---|
3 | * MFFile.cpp
|
---|
4 | * Copyright (C) 2003 UNESCO
|
---|
5 | *
|
---|
6 | * A component of the Greenstone digital library software
|
---|
7 | * from the New Zealand Digital Library Project at the
|
---|
8 | * University of Waikato, New Zealand.
|
---|
9 | *
|
---|
10 | * This program is free software; you can redistribute it and/or modify
|
---|
11 | * it under the terms of the GNU General Public License as published by
|
---|
12 | * the Free Software Foundation; either version 2 of the License, or
|
---|
13 | * (at your option) any later version.
|
---|
14 | *
|
---|
15 | * This program is distributed in the hope that it will be useful,
|
---|
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
18 | * GNU General Public License for more details.
|
---|
19 | *
|
---|
20 | * You should have received a copy of the GNU General Public License
|
---|
21 | * along with this program; if not, write to the Free Software
|
---|
22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
---|
23 | *
|
---|
24 | *********************************************************************/
|
---|
25 |
|
---|
26 | ////////////////////////////////////////////////////////////
|
---|
27 | // MfFile.cpp : Master file object methods using blocked I/O
|
---|
28 | //
|
---|
29 | ////////////////////////////////////////////////////////////
|
---|
30 | #include "stdafx.h"
|
---|
31 | #include "IsisDb.h"
|
---|
32 | #include "Checking.h"
|
---|
33 |
|
---|
34 |
|
---|
35 |
|
---|
36 | //----------------------------------------------------------------------------------
|
---|
37 | // MfFile::MfFile() :
|
---|
38 | //
|
---|
39 | // Constructor, makes a Masterfile object that isn't connected to a file
|
---|
40 | //----------------------------------------------------------------------------------
|
---|
41 | MfFile::MfFile() : BlkFile(), hdr_created_(false), nextaddr_(MFCTLLEN)
|
---|
42 | {
|
---|
43 | lastWrittenBlock_ = -1;
|
---|
44 | }
|
---|
45 |
|
---|
46 | //----------------------------------------------------------------------------------
|
---|
47 | // int MfFile::OpenMf(const TCHAR *fname,
|
---|
48 | // FileSystem::AccessMode mode /* = FileSystem::FILE_READWRITE */)
|
---|
49 | //
|
---|
50 | // Opens a Masterfile object
|
---|
51 | //----------------------------------------------------------------------------------
|
---|
52 | int MfFile::OpenMf(const TCHAR *fname, FileSystem::AccessMode mode
|
---|
53 | /* = FileSystem::FILE_READWRITE */)
|
---|
54 | {
|
---|
55 | TCHAR mstFileName[_MAX_PATH];
|
---|
56 | _tcscpy(mstFileName, fname);
|
---|
57 |
|
---|
58 | if (!CFileBase::Exists(mstFileName)) {
|
---|
59 | mstFileName[strlen(mstFileName) - 3] = 'M';
|
---|
60 | mstFileName[strlen(mstFileName) - 2] = 'S';
|
---|
61 | mstFileName[strlen(mstFileName) - 1] = 'T';
|
---|
62 | }
|
---|
63 |
|
---|
64 | int rc;
|
---|
65 | try
|
---|
66 | {
|
---|
67 | rc = CFileBase::Open(mstFileName, mode);
|
---|
68 | hdr_created_ = true;
|
---|
69 | ReadMfHdr();
|
---|
70 | PrintMfHdr();
|
---|
71 | Checking::CheckMfHeader(mstFileName, mfh_);
|
---|
72 | }
|
---|
73 | catch (CFileBaseException e)
|
---|
74 | {
|
---|
75 | throw CIsisDbException(ISIS_MF_OPEN_ERROR, __FILE__, __LINE__);
|
---|
76 | }
|
---|
77 | return rc;
|
---|
78 | }
|
---|
79 |
|
---|
80 | //----------------------------------------------------------------------------------
|
---|
81 | // int MfFile::createMf(const TCHAR *fname, int type)
|
---|
82 | //
|
---|
83 | // Creates a Masterfile object
|
---|
84 | //----------------------------------------------------------------------------------
|
---|
85 | int MfFile::CreateMf(const TCHAR *fname, int type)
|
---|
86 | {
|
---|
87 | return 0;
|
---|
88 | }
|
---|
89 |
|
---|
90 | //////////////////////////////
|
---|
91 | MfFile::~MfFile()
|
---|
92 | {
|
---|
93 | }
|
---|
94 |
|
---|
95 | //----------------------------------------------------------------------------------
|
---|
96 | // void MfFile::ReadMfRecord(long mfb, int mfp, MfRecord &m)
|
---|
97 | //
|
---|
98 | // Reads the master file record beginning at address (mfb,mfp) into m
|
---|
99 | //----------------------------------------------------------------------------------
|
---|
100 | bool MfFile::ReadMfRecord(long mfb, int mfp, MfRecord &m)
|
---|
101 | {
|
---|
102 | return m.Read(*this, mfb, mfp);
|
---|
103 | }
|
---|
104 |
|
---|
105 | //-------------------------------------------------------------------------------
|
---|
106 | // void WriteMfRecord(long mfb, int mfp, MfRecord &m)
|
---|
107 | //
|
---|
108 | // Helper protected method, which writes the Master file record m at address
|
---|
109 | // (mfb, mfp) mfb (1:MAXMFB), mfp (0: MFBLKSIZE)
|
---|
110 | //-------------------------------------------------------------------------------
|
---|
111 | void MfFile::WriteMfRecord(long mfb, int mfp, MfRecord &m)
|
---|
112 | {
|
---|
113 | m.Write(*this, mfb, mfp);
|
---|
114 | }
|
---|
115 |
|
---|
116 |
|
---|
117 | //--------------------------------------------------------------------------------
|
---|
118 | // void CreateMfRecord(MfRecord &m, long &mfb, int &mfp)
|
---|
119 | //
|
---|
120 | // Create a new record. The MFN to be assigned is obtained from the field nxtmfn_
|
---|
121 | // in the Master file header. Then addMfRecord is called for adding the record
|
---|
122 | // at the end of the master file, at the position indicated by the fields
|
---|
123 | // nxtmfb_/nxtmfb_. The next MFN to be assigned is updated.
|
---|
124 | //
|
---|
125 | //--------------------------------------------------------------------------------
|
---|
126 | void MfFile::CreateMfRecord(MfRecord &m, long &mfb, int &mfp)
|
---|
127 | {
|
---|
128 | }
|
---|
129 |
|
---|
130 | void MfFile::AppendNewBlock()
|
---|
131 | {
|
---|
132 | }
|
---|
133 |
|
---|
134 | //--------------------------------------------------------------------------------
|
---|
135 | // void AddMfRecord(MfRecord &m, long &mfb, int &mfp)
|
---|
136 | //
|
---|
137 | // Add the record at the end of the master file, at the position indicated by
|
---|
138 | // the fields nxtmfb_/nxtmfp_. (nxtmfp_ is in range [1:MFBLKSIZE])
|
---|
139 | // Return the address where the record was stored into mfb & mfp
|
---|
140 | //--------------------------------------------------------------------------------
|
---|
141 | void MfFile::AddMfRecord(MfRecord &m, long &mfb, int &mfp)
|
---|
142 | {
|
---|
143 | }
|
---|
144 |
|
---|
145 |
|
---|
146 | //--------------------------------------------------------------------------------
|
---|
147 | // void UpdateMfRecord(MfRecord &m, long &mfb, int &mfp)
|
---|
148 | //
|
---|
149 | // Update a Master file record.If possible, i.e. if the record length was not
|
---|
150 | // increased, the record is written back at its original location otherwise it is
|
---|
151 | // written at the end of the file. In both cases, MFBWB/MFBWP are not changed.
|
---|
152 | //
|
---|
153 | //--------------------------------------------------------------------------------
|
---|
154 | void MfFile::UpdateMfRecord(MfRecord &m, long &mfb, int &mfp)
|
---|
155 | {
|
---|
156 | }
|
---|
157 |
|
---|
158 |
|
---|
159 | /////////////////////////////////////////////////////////////////////////////////////
|
---|
160 | // methods for dumping file and record headers
|
---|
161 |
|
---|
162 |
|
---|
163 | void MfFile::PrintMfHdr(SMfHeader &h)
|
---|
164 | // Prints header record
|
---|
165 | {
|
---|
166 | }
|
---|
167 |
|
---|
168 | //////////////////////////////
|
---|
169 |
|
---|
170 | void MfFile::PrintMfRecord(MfRecord &m)
|
---|
171 | // Print a master file record structure
|
---|
172 | {
|
---|
173 | m.Dump();
|
---|
174 | }
|
---|
175 |
|
---|
176 | /////////////////////////////////////////////////////////////////////////////////////
|
---|
177 | // Methods for accessing records directly
|
---|
178 |
|
---|
179 | //----------------------------------------------------------------------------------
|
---|
180 | // void MfFile::ReadMfRecord(long daddr, MfRecord &m)
|
---|
181 | //
|
---|
182 | // Reads a master file record into the master record object m.
|
---|
183 | // Non blocked version
|
---|
184 | //----------------------------------------------------------------------------------
|
---|
185 | void MfFile::ReadMfRecord(long daddr, MfRecord &m)
|
---|
186 | {
|
---|
187 | m.Clear();
|
---|
188 | ReadLeader(daddr, m); // Read record leader (Leader is added to record)
|
---|
189 | m.ExtractSubLeader();
|
---|
190 |
|
---|
191 | //TRACE("\nReadMfRecord -- mfn=%ld mfrl=%d", m.GetMfn(), m.GetMfrl());
|
---|
192 | //assert(m.CheckIntegrity());
|
---|
193 | int mfrl = m.GetMfrl();
|
---|
194 | if (mfrl < 0) mfrl = -mfrl; // mfrl can be negative!!!!
|
---|
195 | char* p = new char[mfrl];
|
---|
196 | CFileBase::Fetch(p, mfrl, daddr);
|
---|
197 | m.AddToRecord(p+GetLeaderSize(), mfrl-GetLeaderSize());
|
---|
198 | delete[] p;
|
---|
199 | nextaddr_ += mfrl;
|
---|
200 | int mfb = nextaddr_ / MFBLKSIZE + 1;
|
---|
201 | int mfp = nextaddr_ % MFBLKSIZE;
|
---|
202 | if (mfp > MFBLKSIZE - GetMinLeaderSize())
|
---|
203 | {
|
---|
204 | mfb++;
|
---|
205 | mfp = 0;
|
---|
206 | }
|
---|
207 | nextaddr_ = (mfb-1)*MFBLKSIZE + mfp;
|
---|
208 | m.DecomposeRecord();
|
---|
209 | }
|
---|
210 |
|
---|
211 | //---------------------------------------------------------------------------------
|
---|
212 | // void MfFile::WriteMfRecord(long daddr, MfRecord &m)
|
---|
213 | //
|
---|
214 | // Stores Master record object m to disk address daddr
|
---|
215 | // Non blocked version
|
---|
216 | //---------------------------------------------------------------------------------
|
---|
217 | void MfFile::WriteMfRecord(long daddr, MfRecord &m)
|
---|
218 | {
|
---|
219 | }
|
---|
220 | /////////////////////////////////////////////////////////////////////////////////////
|
---|
221 | // Master file locking methods
|
---|
222 |
|
---|
223 |
|
---|
224 |
|
---|
225 | //-----------------------------------------------------------------------------------
|
---|
226 | // void MfFile::InitFileLockHdr(SMfLockHeader &hdr)
|
---|
227 | //
|
---|
228 | // Initialize a the lock header for a newly constructed file lock header.
|
---|
229 | //-----------------------------------------------------------------------------------
|
---|
230 | void MfFile::InitFileLockHdr(SMfLockHeader &hdr)
|
---|
231 | {
|
---|
232 | hdr.lockProtect_ = (uint32_t)0;
|
---|
233 | hdr.readLock_ = (uint32_t)0;
|
---|
234 | hdr.writeLock_ = (uint32_t)0;
|
---|
235 | }
|
---|
236 |
|
---|
237 | //-----------------------------------------------------------------------------------
|
---|
238 | // FileError MfFile::WriteFileLockHdr(const SMfLockHeader &hdr)
|
---|
239 | //
|
---|
240 | // Write the lock header to the file.
|
---|
241 | // Returns a non-zero value to indicate an error condition or zero if successful.
|
---|
242 | //-----------------------------------------------------------------------------------
|
---|
243 | FileError MfFile::WriteFileLockHdr(const SMfLockHeader &hdr)
|
---|
244 | {
|
---|
245 |
|
---|
246 | return CFileBase::Store(&hdr, sizeof(SMfLockHeader), sizeof(SMfHeader));
|
---|
247 | }
|
---|
248 |
|
---|
249 | //-----------------------------------------------------------------------------------
|
---|
250 | // FileError MfFile::ReadFileLockHdr(SMfLockHeader &hdr)
|
---|
251 | //
|
---|
252 | // Read the lock header from the file.
|
---|
253 | // Returns a non-zero value to indicate an error condition or zero if successful.
|
---|
254 | //-----------------------------------------------------------------------------------
|
---|
255 | FileError MfFile::ReadFileLockHdr(SMfLockHeader &hdr)
|
---|
256 | {
|
---|
257 |
|
---|
258 | return CFileBase::Fetch(&hdr, sizeof(SMfLockHeader), sizeof(SMfHeader));
|
---|
259 | }
|
---|
260 |
|
---|
261 | //-----------------------------------------------------------------------------------
|
---|
262 | // int MfFile::LockFile(CFileMgrLockType l_type)
|
---|
263 | //
|
---|
264 | // Lock the file and set the lock access mode to shared or exclusive.
|
---|
265 | // Returns a non-zero value if the file cannot be locked or the lock variable cannot
|
---|
266 | // be changed because it is exclusive or another thread is currently updating it.
|
---|
267 | //-----------------------------------------------------------------------------------
|
---|
268 | int MfFile::LockFile(MfLockType l_type)
|
---|
269 | {
|
---|
270 | // Read the file lock to ensure that this file has a lock header
|
---|
271 | // and to keep the header in sync during multiple file access.
|
---|
272 | SMfLockHeader lock_header;
|
---|
273 | if (ReadFileLockHdr(lock_header) != FILE_NO_ERROR)
|
---|
274 | return fileError_;
|
---|
275 |
|
---|
276 | // Cannot modifiy this lock until the thread holding it releases the
|
---|
277 | // lock header.
|
---|
278 | if (lock_header.lockProtect_ != 0)
|
---|
279 | {
|
---|
280 | fileError_ = ISIS_MFLOCK_ACCESS_ERROR;
|
---|
281 | #ifdef __CPP_EXCEPTIONS__
|
---|
282 | throw CFileBaseException(fileError_);
|
---|
283 | #else
|
---|
284 | return fileError_;
|
---|
285 | #endif
|
---|
286 | }
|
---|
287 |
|
---|
288 | switch (l_type)
|
---|
289 | {
|
---|
290 | case MF_WRITE_LOCK :
|
---|
291 | // Cannot obtain an exclusive lock until all the threads in the
|
---|
292 | // read lock queue have finished
|
---|
293 | if ((lock_header.readLock_ != 0) ||
|
---|
294 | (lock_header.writeLock_ != 0))
|
---|
295 | {
|
---|
296 | fileError_ = ISIS_MFLOCK_ERROR;
|
---|
297 | #ifdef __CPP_EXCEPTIONS__
|
---|
298 | throw CFileBaseException(fileError_);
|
---|
299 | #else
|
---|
300 | return fileError_;
|
---|
301 | #endif
|
---|
302 | }
|
---|
303 | else
|
---|
304 | {
|
---|
305 | lock_header.writeLock_ = 1;
|
---|
306 | }
|
---|
307 |
|
---|
308 | lock_header.lockProtect_ = 1;
|
---|
309 | if (CFileBase::Store(&lock_header.lockProtect_, sizeof(uint32_t),
|
---|
310 | sizeof(SMfHeader)) != FILE_NO_ERROR)
|
---|
311 | return fileError_;
|
---|
312 |
|
---|
313 | // Skip over the read lock member
|
---|
314 | SeekTo(sizeof(SMfHeader) + (sizeof(uint32_t) * 2));
|
---|
315 | if (CFileBase::Store(&lock_header.writeLock_, sizeof(uint32_t)) !=
|
---|
316 | FILE_NO_ERROR)
|
---|
317 | return fileError_;
|
---|
318 |
|
---|
319 | lock_header.lockProtect_ = (uint32_t)0;
|
---|
320 | if (CFileBase::Store(&lock_header.lockProtect_, sizeof(uint32_t),
|
---|
321 | sizeof(SMfHeader)) != FILE_NO_ERROR)
|
---|
322 | return fileError_;
|
---|
323 | break;
|
---|
324 |
|
---|
325 | case MF_READ_LOCK :
|
---|
326 | // This lock is exclusively owned and cannot be read locked
|
---|
327 | // until the thread holding this lock release the exclusive lock.
|
---|
328 | if (lock_header.writeLock_ == 1)
|
---|
329 | {
|
---|
330 | fileError_ = ISIS_MFLOCK_ERROR;
|
---|
331 | #ifdef __CPP_EXCEPTIONS__
|
---|
332 | throw CFileBaseException(fileError_);
|
---|
333 | #else
|
---|
334 | return fileError_;
|
---|
335 | #endif
|
---|
336 | }
|
---|
337 |
|
---|
338 | if (lock_header.readLock_ < 0xFFFFFFFF)
|
---|
339 | {
|
---|
340 | lock_header.readLock_++;
|
---|
341 | }
|
---|
342 | else
|
---|
343 | {
|
---|
344 | fileError_ = ISIS_MFLOCK_ERROR;
|
---|
345 | #ifdef __CPP_EXCEPTIONS__
|
---|
346 | throw CFileBaseException(fileError_);
|
---|
347 | #else
|
---|
348 | return fileError_;
|
---|
349 | #endif
|
---|
350 | }
|
---|
351 |
|
---|
352 | lock_header.lockProtect_ = 1;
|
---|
353 | if (CFileBase::Store(&lock_header.lockProtect_, sizeof(uint32_t),
|
---|
354 | sizeof(SMfHeader)) != FILE_NO_ERROR)
|
---|
355 | return fileError_;
|
---|
356 |
|
---|
357 | if (CFileBase::Store(&lock_header.readLock_, sizeof(uint32_t)) !=
|
---|
358 | FILE_NO_ERROR)
|
---|
359 | return fileError_;
|
---|
360 |
|
---|
361 | lock_header.lockProtect_ = (uint32_t)0;
|
---|
362 | if (CFileBase::Store(&lock_header.lockProtect_, sizeof(uint32_t),
|
---|
363 | sizeof(SMfHeader)) != FILE_NO_ERROR)
|
---|
364 | return fileError_;
|
---|
365 | break;
|
---|
366 |
|
---|
367 | default: // Invalid lock type specified
|
---|
368 | fileError_ = ISIS_INVALID_LOCK_TYPE;
|
---|
369 | #ifdef __CPP_EXCEPTIONS__
|
---|
370 | throw CFileBaseException(fileError_);
|
---|
371 | #else
|
---|
372 | return fileError_;
|
---|
373 | #endif
|
---|
374 | }
|
---|
375 |
|
---|
376 | return fileError_ = fileError_ = FILE_NO_ERROR;
|
---|
377 | }
|
---|
378 |
|
---|
379 | //-----------------------------------------------------------------------------------
|
---|
380 | // int MfFile::UnlockFile(CFileMgrLockType l_type)
|
---|
381 | //
|
---|
382 | // Unlock the file. Returns a non-zero value if the file cannot be unlocked or the
|
---|
383 | // lock variable cannot be changed because it is exclusive or another thread is
|
---|
384 | // currently updating it.
|
---|
385 | //-----------------------------------------------------------------------------------
|
---|
386 | int MfFile::UnlockFile(MfLockType l_type)
|
---|
387 | {
|
---|
388 |
|
---|
389 | // Read the file lock to ensure that this file has a lock header
|
---|
390 | // and to keep the header in sync during multiple file access.
|
---|
391 | SMfLockHeader lock_header;
|
---|
392 | if (ReadFileLockHdr(lock_header) != FILE_NO_ERROR)
|
---|
393 | return fileError_;
|
---|
394 |
|
---|
395 | // Cannot modifiy this lock until the thread holding it releases the
|
---|
396 | // lock header.
|
---|
397 | if (lock_header.lockProtect_ != 0)
|
---|
398 | {
|
---|
399 | fileError_ = ISIS_MFLOCK_ACCESS_ERROR;
|
---|
400 | #ifdef __CPP_EXCEPTIONS__
|
---|
401 | throw CFileBaseException(fileError_);
|
---|
402 | #else
|
---|
403 | return fileError_;
|
---|
404 | #endif
|
---|
405 | }
|
---|
406 |
|
---|
407 | switch (l_type)
|
---|
408 | {
|
---|
409 | case MF_WRITE_LOCK :
|
---|
410 | if (lock_header.writeLock_ == 0)
|
---|
411 | return FILE_NO_ERROR;
|
---|
412 | else
|
---|
413 | lock_header.writeLock_ = 0;
|
---|
414 |
|
---|
415 | lock_header.lockProtect_ = 1;
|
---|
416 | if (CFileBase::Store(&lock_header.lockProtect_, sizeof(uint32_t),
|
---|
417 | sizeof(SMfHeader)) != FILE_NO_ERROR)
|
---|
418 | return fileError_;
|
---|
419 |
|
---|
420 | // Skip over the read lock member
|
---|
421 | SeekTo(sizeof(SMfHeader) + (sizeof(uint32_t) * 2));
|
---|
422 | if (CFileBase::Store(&lock_header.writeLock_, sizeof(uint32_t)) !=
|
---|
423 | FILE_NO_ERROR)
|
---|
424 | return fileError_;
|
---|
425 |
|
---|
426 | lock_header.lockProtect_ = (uint32_t)0;
|
---|
427 | if (CFileBase::Store(&lock_header.lockProtect_, sizeof(uint32_t),
|
---|
428 | sizeof(SMfHeader)) != FILE_NO_ERROR)
|
---|
429 | return fileError_;
|
---|
430 | break;
|
---|
431 |
|
---|
432 | case MF_READ_LOCK :
|
---|
433 | if (lock_header.readLock_ == 0) // This record is not locked
|
---|
434 | return fileError_ = FILE_NO_ERROR;
|
---|
435 | else if (lock_header.readLock_ > 0) // Prevent read lock rollover
|
---|
436 | lock_header.readLock_--;
|
---|
437 | else
|
---|
438 | lock_header.readLock_ = 0;
|
---|
439 |
|
---|
440 | lock_header.lockProtect_ = 1;
|
---|
441 | if (CFileBase::Store(&lock_header.lockProtect_, sizeof(uint32_t),
|
---|
442 | sizeof(SMfHeader)) != FILE_NO_ERROR)
|
---|
443 | return fileError_;
|
---|
444 |
|
---|
445 | if (CFileBase::Store(&lock_header.readLock_, sizeof(uint32_t)) !=
|
---|
446 | FILE_NO_ERROR)
|
---|
447 | return fileError_;
|
---|
448 |
|
---|
449 | lock_header.lockProtect_ = (uint32_t)0;
|
---|
450 | if (CFileBase::Store(&lock_header.lockProtect_, sizeof(uint32_t),
|
---|
451 | sizeof(SMfHeader)) != FILE_NO_ERROR)
|
---|
452 | return fileError_;
|
---|
453 | break;
|
---|
454 |
|
---|
455 | default: // Invalid lock type specified
|
---|
456 | fileError_ = FMGR_INVALID_LOCK_TYPE;
|
---|
457 | #ifdef __CPP_EXCEPTIONS__
|
---|
458 | throw CFileBaseException(fileError_);
|
---|
459 | #else
|
---|
460 | return fileError_;
|
---|
461 | #endif
|
---|
462 | }
|
---|
463 |
|
---|
464 | return fileError_ = fileError_ = FILE_NO_ERROR;
|
---|
465 | }
|
---|
466 |
|
---|
467 | //-----------------------------------------------------------------------------------
|
---|
468 | // FileError MfFile::ResetFileLock()
|
---|
469 | //
|
---|
470 | // Reset the file's lock header. This function will clear all the file lock fields
|
---|
471 | // without testing the lock or the lock protect. Returns a non-zero value to indicate
|
---|
472 | // an error condition or zero if successful.
|
---|
473 | //-----------------------------------------------------------------------------------
|
---|
474 | FileError MfFile::ResetFileLock()
|
---|
475 | {
|
---|
476 | SMfLockHeader lock_header;
|
---|
477 | InitFileLockHdr(lock_header);
|
---|
478 | return WriteFileLockHdr(lock_header);
|
---|
479 | }
|
---|