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Overview
| Comment: | Make the "nolock" VFS on unix a version-3 VFS so that the sorter can use memory-mapped I/O. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
3db78d6100a1ecf58c18eec3abefa7d1 |
| User & Date: | drh 2014-09-19 19:00:48 |
Context
|
2014-09-19
| ||
| 19:43 | Do not attempt to extend the temp file if VFS version 3 is not supported and hence memory mapped I/O is unavailable. (check-in: 3ab20ba1 user: drh tags: trunk) | |
| 19:00 | Make the "nolock" VFS on unix a version-3 VFS so that the sorter can use memory-mapped I/O. (check-in: 3db78d61 user: drh tags: trunk) | |
| 16:56 | Remove a local variable from the OP_Column implementation, resulting in a modest size reduction and a performance increase. (check-in: 6199760d user: drh tags: trunk) | |
Changes
Changes to src/os_unix.c.
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unixLock, /* xLock method */
unixUnlock, /* xUnlock method */
unixCheckReservedLock /* xCheckReservedLock method */
)
IOMETHODS(
nolockIoFinder, /* Finder function name */
nolockIoMethods, /* sqlite3_io_methods object name */
1, /* shared memory is disabled */
nolockClose, /* xClose method */
nolockLock, /* xLock method */
nolockUnlock, /* xUnlock method */
nolockCheckReservedLock /* xCheckReservedLock method */
)
IOMETHODS(
dotlockIoFinder, /* Finder function name */
|
| |
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unixLock, /* xLock method */
unixUnlock, /* xUnlock method */
unixCheckReservedLock /* xCheckReservedLock method */
)
IOMETHODS(
nolockIoFinder, /* Finder function name */
nolockIoMethods, /* sqlite3_io_methods object name */
3, /* shared memory is disabled */
nolockClose, /* xClose method */
nolockLock, /* xLock method */
nolockUnlock, /* xUnlock method */
nolockCheckReservedLock /* xCheckReservedLock method */
)
IOMETHODS(
dotlockIoFinder, /* Finder function name */
|