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Overview
| Comment: | Add the mode=memory option to URI filenames, which when present forces the database to be an in-memory database. This enables named in-memory databases. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
651520fa84ee0c488bef660bab986550 |
| User & Date: | drh 2012-05-28 13:58:00 |
Context
|
2012-05-28
| ||
| 15:32 | Fix Makefile.in so that it works with the new unicode tokenizer of FTS3/4. Update the version number to 3.7.13. (check-in: b8720d04 user: drh tags: trunk) | |
| 13:58 | Add the mode=memory option to URI filenames, which when present forces the database to be an in-memory database. This enables named in-memory databases. (check-in: 651520fa user: drh tags: trunk) | |
| 12:22 | Omit the fts3 unicode character class routines from the build if fts3/4 is disabled. (check-in: c00bb5d4 user: drh tags: trunk) | |
Changes
Changes to src/btree.c.
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/* Set the variable isMemdb to true for an in-memory database, or
** false for a file-based database.
*/
#ifdef SQLITE_OMIT_MEMORYDB
const int isMemdb = 0;
#else
const int isMemdb = (zFilename && strcmp(zFilename, ":memory:")==0)
|| (isTempDb && sqlite3TempInMemory(db));
#endif
assert( db!=0 );
assert( pVfs!=0 );
assert( sqlite3_mutex_held(db->mutex) );
assert( (flags&0xff)==flags ); /* flags fit in 8 bits */
|
| > |
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/* Set the variable isMemdb to true for an in-memory database, or
** false for a file-based database.
*/
#ifdef SQLITE_OMIT_MEMORYDB
const int isMemdb = 0;
#else
const int isMemdb = (zFilename && strcmp(zFilename, ":memory:")==0)
|| (isTempDb && sqlite3TempInMemory(db))
|| (vfsFlags & SQLITE_OPEN_MEMORY)!=0;
#endif
assert( db!=0 );
assert( pVfs!=0 );
assert( sqlite3_mutex_held(db->mutex) );
assert( (flags&0xff)==flags ); /* flags fit in 8 bits */
|
Changes to src/main.c.
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zModeType = "cache";
}
if( nOpt==4 && memcmp("mode", zOpt, 4)==0 ){
static struct OpenMode aOpenMode[] = {
{ "ro", SQLITE_OPEN_READONLY },
{ "rw", SQLITE_OPEN_READWRITE },
{ "rwc", SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE },
{ 0, 0 }
};
mask = SQLITE_OPEN_READONLY|SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE;
aMode = aOpenMode;
limit = mask & flags;
zModeType = "access";
}
if( aMode ){
int i;
................................................................................
}
}
if( mode==0 ){
*pzErrMsg = sqlite3_mprintf("no such %s mode: %s", zModeType, zVal);
rc = SQLITE_ERROR;
goto parse_uri_out;
}
if( mode>limit ){
*pzErrMsg = sqlite3_mprintf("%s mode not allowed: %s",
zModeType, zVal);
rc = SQLITE_PERM;
goto parse_uri_out;
}
flags = (flags & ~mask) | mode;
}
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zModeType = "cache";
}
if( nOpt==4 && memcmp("mode", zOpt, 4)==0 ){
static struct OpenMode aOpenMode[] = {
{ "ro", SQLITE_OPEN_READONLY },
{ "rw", SQLITE_OPEN_READWRITE },
{ "rwc", SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE },
{ "memory",
SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE
| SQLITE_OPEN_MEMORY },
{ 0, 0 }
};
mask = SQLITE_OPEN_READONLY | SQLITE_OPEN_READWRITE
| SQLITE_OPEN_CREATE | SQLITE_OPEN_MEMORY;
aMode = aOpenMode;
limit = mask & flags;
zModeType = "access";
}
if( aMode ){
int i;
................................................................................
}
}
if( mode==0 ){
*pzErrMsg = sqlite3_mprintf("no such %s mode: %s", zModeType, zVal);
rc = SQLITE_ERROR;
goto parse_uri_out;
}
if( (mode & ~SQLITE_OPEN_MEMORY)>limit ){
*pzErrMsg = sqlite3_mprintf("%s mode not allowed: %s",
zModeType, zVal);
rc = SQLITE_PERM;
goto parse_uri_out;
}
flags = (flags & ~mask) | mode;
}
|
Changes to src/sqlite.h.in.
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#define SQLITE_OPEN_READONLY 0x00000001 /* Ok for sqlite3_open_v2() */ #define SQLITE_OPEN_READWRITE 0x00000002 /* Ok for sqlite3_open_v2() */ #define SQLITE_OPEN_CREATE 0x00000004 /* Ok for sqlite3_open_v2() */ #define SQLITE_OPEN_DELETEONCLOSE 0x00000008 /* VFS only */ #define SQLITE_OPEN_EXCLUSIVE 0x00000010 /* VFS only */ #define SQLITE_OPEN_AUTOPROXY 0x00000020 /* VFS only */ #define SQLITE_OPEN_URI 0x00000040 /* Ok for sqlite3_open_v2() */ #define SQLITE_OPEN_MAIN_DB 0x00000100 /* VFS only */ #define SQLITE_OPEN_TEMP_DB 0x00000200 /* VFS only */ #define SQLITE_OPEN_TRANSIENT_DB 0x00000400 /* VFS only */ #define SQLITE_OPEN_MAIN_JOURNAL 0x00000800 /* VFS only */ #define SQLITE_OPEN_TEMP_JOURNAL 0x00001000 /* VFS only */ #define SQLITE_OPEN_SUBJOURNAL 0x00002000 /* VFS only */ #define SQLITE_OPEN_MASTER_JOURNAL 0x00004000 /* VFS only */ |
> |
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#define SQLITE_OPEN_READONLY 0x00000001 /* Ok for sqlite3_open_v2() */
#define SQLITE_OPEN_READWRITE 0x00000002 /* Ok for sqlite3_open_v2() */
#define SQLITE_OPEN_CREATE 0x00000004 /* Ok for sqlite3_open_v2() */
#define SQLITE_OPEN_DELETEONCLOSE 0x00000008 /* VFS only */
#define SQLITE_OPEN_EXCLUSIVE 0x00000010 /* VFS only */
#define SQLITE_OPEN_AUTOPROXY 0x00000020 /* VFS only */
#define SQLITE_OPEN_URI 0x00000040 /* Ok for sqlite3_open_v2() */
#define SQLITE_OPEN_MEMORY 0x00000080 /* Ok for sqlite3_open_v2() */
#define SQLITE_OPEN_MAIN_DB 0x00000100 /* VFS only */
#define SQLITE_OPEN_TEMP_DB 0x00000200 /* VFS only */
#define SQLITE_OPEN_TRANSIENT_DB 0x00000400 /* VFS only */
#define SQLITE_OPEN_MAIN_JOURNAL 0x00000800 /* VFS only */
#define SQLITE_OPEN_TEMP_JOURNAL 0x00001000 /* VFS only */
#define SQLITE_OPEN_SUBJOURNAL 0x00002000 /* VFS only */
#define SQLITE_OPEN_MASTER_JOURNAL 0x00004000 /* VFS only */
|
Changes to test/e_uri.test.
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foreach {tn uri error} "
1 {file:test.db?mode=ro} {not an error}
2 {file:test.db?mode=rw} {not an error}
3 {file:test.db?mode=rwc} {not an error}
4 {file:test.db?mode=Ro} {no such access mode: Ro}
5 {file:test.db?mode=Rw} {no such access mode: Rw}
6 {file:test.db?mode=Rwc} {no such access mode: Rwc}
" {
do_test 7.$tn { open_uri_error $uri } $error
}
# EVIDENCE-OF: R-09651-31805 If "ro" is specified, then the database is
# opened for read-only access, just as if the SQLITE_OPEN_READONLY flag
|
> > |
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foreach {tn uri error} "
1 {file:test.db?mode=ro} {not an error}
2 {file:test.db?mode=rw} {not an error}
3 {file:test.db?mode=rwc} {not an error}
4 {file:test.db?mode=Ro} {no such access mode: Ro}
5 {file:test.db?mode=Rw} {no such access mode: Rw}
6 {file:test.db?mode=Rwc} {no such access mode: Rwc}
7 {file:test.db?mode=memory} {not an error}
8 {file:test.db?mode=MEMORY} {no such access mode: MEMORY}
" {
do_test 7.$tn { open_uri_error $uri } $error
}
# EVIDENCE-OF: R-09651-31805 If "ro" is specified, then the database is
# opened for read-only access, just as if the SQLITE_OPEN_READONLY flag
|
Changes to test/shared.test.
1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 |
db1 eval {
CREATE TABLE t1(x); INSERT INTO t1 VALUES(4),(5),(6);
}
catchsql {
SELECT * FROM t1;
} db2
} {1 {no such table: t1}}
db1 close
db2 close
} ;# end of autovacuum on/off loop
sqlite3_enable_shared_cache $::enable_shared_cache
finish_test
|
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db1 eval {
CREATE TABLE t1(x); INSERT INTO t1 VALUES(4),(5),(6);
}
catchsql {
SELECT * FROM t1;
} db2
} {1 {no such table: t1}}
# Shared cache on named memory databases.
#
do_test shared-$av-16.4 {
db1 close
db2 close
forcedelete test.db test.db-wal test.db-journal
sqlite3 db1 file:test.db?mode=memory -uri 1
sqlite3 db2 file:test.db?mode=memory -uri 1
db1 eval {
CREATE TABLE t1(x); INSERT INTO t1 VALUES(1),(2),(3);
}
db2 eval {
SELECT x FROM t1 ORDER BY x;
}
} {1 2 3}
do_test shared-$av-16.5 {
db2 eval {
INSERT INTO t1 VALUES(99);
DELETE FROM t1 WHERE x=2;
}
db1 eval {
SELECT x FROM t1 ORDER BY x;
}
} {1 3 99}
do_test shared-$av-16.6 {
file exists test.db
} {0} ;# Verify that the database is in-memory
# Shared cache on named memory databases with different names.
#
do_test shared-$av-16.7 {
db1 close
db2 close
forcedelete test1.db test2.db
sqlite3 db1 file:test1.db?mode=memory -uri 1
sqlite3 db2 file:test2.db?mode=memory -uri 1
db1 eval {
CREATE TABLE t1(x); INSERT INTO t1 VALUES(1),(2),(3);
}
catchsql {
SELECT x FROM t1 ORDER BY x;
} db2
} {1 {no such table: t1}}
do_test shared-$av-16.8 {
file exists test1.db
} {0} ;# Verify that the database is in-memory
db1 close
db2 close
} ;# end of autovacuum on/off loop
sqlite3_enable_shared_cache $::enable_shared_cache
finish_test
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