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Overview
| Comment: | Make sure that SQLITE_FCNTL_SIZE_HINT on Windows does not shrink the file. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | winNativeHeap |
| Files: | files | file ages | folders |
| SHA1: |
d4f6437f8de82482dfaa4c084f4221e8 |
| User & Date: | mistachkin 2011-08-25 01:16:42 |
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: 67ff8d27 user: drh tags: trunk) | |
Context
|
2011-08-25
| ||
| 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: 4257e9b7 user: mistachkin tags: winNativeHeap) | |
| 01:16 | Make sure that SQLITE_FCNTL_SIZE_HINT on Windows does not shrink the file. (check-in: d4f6437f 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: 7fca5a28 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: {
sqlite3_int64 sz = *(sqlite3_int64*)pArg;
SimulateIOErrorBenign(1);
winTruncate(id, sz);
SimulateIOErrorBenign(0);
return SQLITE_OK;
}
case SQLITE_FCNTL_PERSIST_WAL: {
int bPersist = *(int*)pArg;
if( bPersist<0 ){
*(int*)pArg = pFile->bPersistWal;
}else{
pFile->bPersistWal = bPersist!=0;
|
> > > > | > | | | > > | |
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
|
> > > > | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > |
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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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