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Overview
| Comment: | Make sure that SQLITE_FCNTL_SIZE_HINT on Windows does not shrink the file. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | winNativeHeap |
| Files: | files | file ages | folders |
| SHA1: |
d4f6437f8de82482dfaa4c084f4221e8 |
| User & Date: | mistachkin 2011-08-25 01:16:42.999 |
References
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2011-08-25
| ||
| 01:58 | Cherrypick the [d4f6437f8d] change so that SQLITE_FCNTL_SIZE_HINT is always honored and never undone by memory pressure on windows. (check-in: 67ff8d27f6 user: drh tags: trunk) | |
Context
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2011-08-25
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| 02:02 | In the MSVC makefile, support several levels of debugging, each one building on the previous. Also, add comment about the SQLITE_WIN32_MALLOC_VALIDATE macro. (check-in: 4257e9b7ca user: mistachkin tags: winNativeHeap) | |
| 01:16 | Make sure that SQLITE_FCNTL_SIZE_HINT on Windows does not shrink the file. (check-in: d4f6437f8d user: mistachkin tags: winNativeHeap) | |
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2011-08-24
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| 17:42 | Add error logging to native Win32 heap support. (check-in: 7fca5a284c user: mistachkin tags: winNativeHeap) | |
Changes
Changes to src/os_win.c.
| ︙ | ︙ | |||
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return SQLITE_OK;
}
case SQLITE_FCNTL_CHUNK_SIZE: {
pFile->szChunk = *(int *)pArg;
return SQLITE_OK;
}
case SQLITE_FCNTL_SIZE_HINT: {
| > | > > > > | | | > > | | 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 |
return SQLITE_OK;
}
case SQLITE_FCNTL_CHUNK_SIZE: {
pFile->szChunk = *(int *)pArg;
return SQLITE_OK;
}
case SQLITE_FCNTL_SIZE_HINT: {
winFile *pFile = (winFile*)id;
sqlite3_int64 oldSz;
int rc = winFileSize(id, &oldSz);
if( rc==SQLITE_OK ){
sqlite3_int64 newSz = *(sqlite3_int64*)pArg;
if( newSz>oldSz ){
SimulateIOErrorBenign(1);
rc = winTruncate(id, newSz);
SimulateIOErrorBenign(0);
}
}
return rc;
}
case SQLITE_FCNTL_PERSIST_WAL: {
int bPersist = *(int*)pArg;
if( bPersist<0 ){
*(int*)pArg = pFile->bPersistWal;
}else{
pFile->bPersistWal = bPersist!=0;
|
| ︙ | ︙ |
Changes to test/pager1.test.
| ︙ | ︙ | |||
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hexio_write test.db2-journal 24 00000000
sqlite3 db2 test.db2
execsql { PRAGMA integrity_check } db2
} {ok}
}
finish_test
| > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 |
hexio_write test.db2-journal 24 00000000
sqlite3 db2 test.db2
execsql { PRAGMA integrity_check } db2
} {ok}
}
#-------------------------------------------------------------------------
# Test that a database file can be "pre-hinted" to a certain size and that
# subsequent spilling of the pager cache does not result in the database
# file being shrunk.
#
catch {db close}
forcedelete test.db
do_test pager1-32.1 {
sqlite3 db test.db
execsql {
CREATE TABLE t1(x, y);
}
db close
sqlite3 db test.db
execsql {
BEGIN;
INSERT INTO t1 VALUES(1, randomblob(10000));
}
file_control_sizehint_test db main 20971520; # 20MB
execsql {
PRAGMA cache_size = 10;
INSERT INTO t1 VALUES(1, randomblob(10000));
INSERT INTO t1 VALUES(2, randomblob(10000));
INSERT INTO t1 SELECT x+2, randomblob(10000) from t1;
INSERT INTO t1 SELECT x+4, randomblob(10000) from t1;
INSERT INTO t1 SELECT x+8, randomblob(10000) from t1;
INSERT INTO t1 SELECT x+16, randomblob(10000) from t1;
SELECT count(*) FROM t1;
COMMIT;
}
db close
file size test.db
} {20971520}
# Cleanup 20MB file left by the previous test.
forcedelete test.db
finish_test
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