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Overview
Comment: | Omit an unnecessary Sleep() call in windows pending-lock retry logic. Enhance the comment on that logic to discourage people from copying it into other VFSes. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
0c951a970436725b6bbd64568de500f7 |
User & Date: | drh 2011-11-09 18:07:34.181 |
Context
2011-11-10
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20:21 | In winAccess, save the Win32 last error value prior to invoking user logging callback. Also, explicitly pass the Win32 last error value to winLogError in order to keep it accurate. Fixes a problem reported on the mailing list. (check-in: 32ab365715 user: mistachkin tags: trunk) | |
2011-11-09
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18:07 | Omit an unnecessary Sleep() call in windows pending-lock retry logic. Enhance the comment on that logic to discourage people from copying it into other VFSes. (check-in: 0c951a9704 user: drh tags: trunk) | |
2011-11-07
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18:16 | Make the unix VFS tolerant of read() calls that return less than the requested number of bytes. (check-in: a210695abc user: drh tags: trunk) | |
Changes
Changes to src/os_win.c.
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1441 1442 1443 1444 1445 1446 1447 | newLocktype = pFile->locktype; if( (pFile->locktype==NO_LOCK) || ( (locktype==EXCLUSIVE_LOCK) && (pFile->locktype==RESERVED_LOCK)) ){ int cnt = 3; while( cnt-->0 && (res = LockFile(pFile->h, PENDING_BYTE, 0, 1, 0))==0 ){ | | | > > | | 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 | newLocktype = pFile->locktype; if( (pFile->locktype==NO_LOCK) || ( (locktype==EXCLUSIVE_LOCK) && (pFile->locktype==RESERVED_LOCK)) ){ int cnt = 3; while( cnt-->0 && (res = LockFile(pFile->h, PENDING_BYTE, 0, 1, 0))==0 ){ /* Try 3 times to get the pending lock. This is needed to work ** around problems caused by anti-virus software on windows system. ** If you are using this code as a model for alternative VFSes, do not ** copy this retry logic. It is a hack intended for windows only. */ OSTRACE(("could not get a PENDING lock. cnt=%d\n", cnt)); if( cnt ) Sleep(1); } gotPendingLock = res; if( !res ){ error = GetLastError(); } } |
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