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Overview
| Comment: | Comment out the SQLITE_FCNTL_SIZE_HINT from os_unix.c since it does not seem to provide any performance gain there. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
7d01309da658d6b658c1b2e53bbdc511 |
| User & Date: | drh 2010-05-21 18:24:07 |
Context
|
2010-05-21
| ||
| 19:15 | Fix another bug in walClearHash(). (check-in: 40f80ffe user: dan tags: trunk) | |
| 18:24 | Comment out the SQLITE_FCNTL_SIZE_HINT from os_unix.c since it does not seem to provide any performance gain there. (check-in: 7d01309d user: drh tags: trunk) | |
| 16:23 | Correct an off-by-one bug in the previous commit. (check-in: 75a1130d user: dan tags: trunk) | |
Changes
Changes to src/os_unix.c.
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return SQLITE_OK;
}
case SQLITE_LAST_ERRNO: {
*(int*)pArg = ((unixFile*)id)->lastErrno;
return SQLITE_OK;
}
case SQLITE_FCNTL_SIZE_HINT: {
sqlite3_int64 szFile = *(sqlite3_int64*)pArg;
unixFile *pFile = (unixFile*)id;
ftruncate(pFile->h, szFile);
return SQLITE_OK;
}
#ifndef NDEBUG
/* The pager calls this method to signal that it has done
** a rollback and that the database is therefore unchanged and
** it hence it is OK for the transaction change counter to be
** unchanged.
|
> > |
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return SQLITE_OK;
}
case SQLITE_LAST_ERRNO: {
*(int*)pArg = ((unixFile*)id)->lastErrno;
return SQLITE_OK;
}
case SQLITE_FCNTL_SIZE_HINT: {
#if 0 /* No performance advantage seen on Linux */
sqlite3_int64 szFile = *(sqlite3_int64*)pArg;
unixFile *pFile = (unixFile*)id;
ftruncate(pFile->h, szFile);
#endif
return SQLITE_OK;
}
#ifndef NDEBUG
/* The pager calls this method to signal that it has done
** a rollback and that the database is therefore unchanged and
** it hence it is OK for the transaction change counter to be
** unchanged.
|