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Overview
Comment: | Improvements to the xRandomness() method on the default windows VFS. Ticket #2615. (CVS 4374) |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
91b50f31e35652a40d51f5d9bf22efce |
User & Date: | drh 2007-09-03 13:06:12.000 |
Context
2007-09-03
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15:03 | Fix a problem in hash.c when replacing entries in tables configured with copyKey==0. (CVS 4375) (check-in: a19d3a73a9 user: danielk1977 tags: trunk) | |
13:06 | Improvements to the xRandomness() method on the default windows VFS. Ticket #2615. (CVS 4374) (check-in: 91b50f31e3 user: drh tags: trunk) | |
12:34 | Document the fact that xRandomness is only called once from the default VFS. Ticket #2614. (CVS 4373) (check-in: e89d4131a1 user: drh tags: trunk) | |
Changes
Changes to src/os_win.c.
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1417 1418 1419 1420 1421 1422 1423 | #endif /* ** Write up to nBuf bytes of randomness into zBuf. */ static int winRandomness(sqlite3_vfs *pVfs, int nBuf, char *zBuf){ | > | > | | | > > > > > > > > > > > > > > > | > | 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 | #endif /* ** Write up to nBuf bytes of randomness into zBuf. */ static int winRandomness(sqlite3_vfs *pVfs, int nBuf, char *zBuf){ int n = 0; if( sizeof(LPSYSTEMTIME)<=nBuf-n ){ SYSTEMTIME x; GetSystemTime(&x); memcpy(&zBuf[n], &x, sizeof(x)); n += sizeof(x); } if( sizeof(DWORD)<=nBuf-n ){ DWORD pid = GetCurrentProcessId(); memcpy(&zBuf[n], &pid, sizeof(pid)); n += sizeof(pid); } if( sizeof(DWORD)<=nBuf-n ){ DWORD cnt = GetTickCount(); memcpy(&zBuf[n], &cnt, sizeof(cnt)); n += sizeof(cnt); } if( sizeof(LARGE_INTEGER)<=nBuf-n ){ LARGE_INTEGER i; QueryPerformanceCounter(&i); memcpy(&zBuf[n], &i, sizeof(i)); n += sizeof(i); } return n; } /* ** Sleep for a little while. Return the amount of time slept. */ static int winSleep(sqlite3_vfs *pVfs, int microsec){ |
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