func sqlOpen(name string, flags int, vfs string) (conn *sqlConnection, rc int) {
conn = new(sqlConnection)
p := C.CString(name)
if len(vfs) > 0 {
q := C.CString(vfs)
rc = int(C.sqlite3_open_v2(p, &conn.handle, C.int(flags), q))
C.free(unsafe.Pointer(q))
} else {
rc = int(C.sqlite3_open_v2(p, &conn.handle, C.int(flags), nil))
}
C.free(unsafe.Pointer(p))
// We could get a handle even if there's an error, see
// http://www.sqlite.org/c3ref/open.html for details.
// Initially we didn't want to return a connection on
// error, but we actually have to since we want to fill
// in a SystemError struct. Sigh.
// if rc != StatusOk && conn.handle != nil {
// _ = conn.sqlClose();
// conn = nil;
// }
return
}
// OpenVfs opens a new database with a specified virtual file system.
func OpenVfs(filename string, vfsname string, flags ...OpenFlag) (*Conn, error) {
if C.sqlite3_threadsafe() == 0 {
return nil, errors.New("sqlite library was not compiled for thread-safe operation")
}
var openFlags int
if len(flags) > 0 {
for _, flag := range flags {
openFlags |= int(flag)
}
} else {
openFlags = C.SQLITE_OPEN_FULLMUTEX | C.SQLITE_OPEN_READWRITE | C.SQLITE_OPEN_CREATE
}
var db *C.sqlite3
name := C.CString(filename)
defer C.free(unsafe.Pointer(name))
var vfs *C.char
if len(vfsname) > 0 {
vfs = C.CString(vfsname)
defer C.free(unsafe.Pointer(vfs))
}
rv := C.sqlite3_open_v2(name, &db, C.int(openFlags), vfs)
if rv != C.SQLITE_OK {
if db != nil {
C.sqlite3_close(db)
}
return nil, Errno(rv)
}
if db == nil {
return nil, errors.New("sqlite succeeded without returning a database")
}
return &Conn{db: db, stmtCache: newCache()}, nil
}
func (d *SQLiteDriver) Open(dsn string) (driver.Conn, error) {
if C.sqlite3_threadsafe() == 0 {
return nil, errors.New("sqlite library was not compiled for thread-safe operation")
}
var db *C.sqlite3
name := C.CString(dsn)
defer C.free(unsafe.Pointer(name))
rv := C.sqlite3_open_v2(name, &db,
C.SQLITE_OPEN_FULLMUTEX|
C.SQLITE_OPEN_READWRITE|
C.SQLITE_OPEN_CREATE,
nil)
if rv != 0 {
return nil, errors.New(C.GoString(C.sqlite3_errmsg(db)))
}
if db == nil {
return nil, errors.New("sqlite succeeded without returning a database")
}
rv = C.sqlite3_busy_timeout(db, 5000)
if rv != C.SQLITE_OK {
return nil, errors.New(C.GoString(C.sqlite3_errmsg(db)))
}
return &SQLiteConn{db}, nil
}
// OpenVfs opens a new database with a specified virtual file system.
func OpenVfs(filename string, vfsname string, flags ...OpenFlag) (*Conn, error) {
if C.sqlite3_threadsafe() == 0 {
return nil, errors.New("sqlite library was not compiled for thread-safe operation")
}
var openFlags int
if len(flags) > 0 {
for _, flag := range flags {
openFlags |= int(flag)
}
} else {
openFlags = C.SQLITE_OPEN_FULLMUTEX | C.SQLITE_OPEN_READWRITE | C.SQLITE_OPEN_CREATE
}
var db *C.sqlite3
cname := C.CString(filename)
defer C.free(unsafe.Pointer(cname))
var vfs *C.char
if len(vfsname) > 0 {
vfs = C.CString(vfsname)
defer C.free(unsafe.Pointer(vfs))
}
rv := C.sqlite3_open_v2(cname, &db, C.int(openFlags), vfs)
if rv != C.SQLITE_OK {
if db != nil { // try to extract futher details from db...
err := OpenError{Code: Errno(rv),
ExtendedCode: int(C.sqlite3_extended_errcode(db)),
Msg: C.GoString(C.sqlite3_errmsg(db)),
Filename: filename,
}
C.sqlite3_close(db)
return nil, err
}
return nil, Errno(rv)
}
if db == nil {
return nil, errors.New("sqlite succeeded without returning a database")
}
c := &Conn{db: db, stmtCache: newCache(), DefaultTimeLayout: "2006-01-02 15:04:05.000Z07:00"}
if os.Getenv("SQLITE_DEBUG") != "" {
//c.SetAuthorizer(authorizer, c.db)
c.Trace(trace, "TRACE")
//c.SetCacheSize(0)
}
return c, nil
}
func (db *Database) Open(flags ...int) (e error) {
if C.sqlite3_threadsafe() == 0 {
panic("sqlite library is not thread-safe")
}
if db.handle != nil {
e = CANTOPEN
} else {
db.Flags = 0
for _, v := range flags {
db.Flags = db.Flags | C.int(v)
}
if err := Errno(C.sqlite3_open_v2(C.CString(db.Filename), &db.handle, db.Flags, nil)); err != OK {
e = err
} else if db.handle == nil {
e = CANTOPEN
}
}
return
}
// Open creates a new connection to a SQLite database. The name can be 1) a path
// to a file, which is created if it does not exist, 2) a URI using the syntax
// described at http://www.sqlite.org/uri.html, 3) the string ":memory:", which
// creates a temporary in-memory database, or 4) an empty string, which creates
// a temporary on-disk database (deleted when closed) in the directory returned
// by os.TempDir().
// [http://www.sqlite.org/c3ref/open.html]
func Open(name string) (*Conn, error) {
if initErr != nil {
return nil, initErr
}
name += "\x00"
var db *C.sqlite3
rc := C.sqlite3_open_v2(cStr(name), &db,
C.SQLITE_OPEN_READWRITE|C.SQLITE_OPEN_CREATE, nil)
if rc != OK {
err := libErr(rc, db)
C.sqlite3_close(db)
return nil, err
}
c := &Conn{db: db}
C.sqlite3_extended_result_codes(db, 1)
runtime.SetFinalizer(c, (*Conn).Close)
return c, nil
}
func OpenV2(filename string, flags int) (*Conn, error) {
if C.sqlite3_threadsafe() == 0 {
return nil, errors.New("sqlite library was not compiled for thread-safe operation")
}
var db *C.sqlite3
name := C.CString(filename)
defer C.free(unsafe.Pointer(name))
rv := C.sqlite3_open_v2(name, &db,
C.int(flags),
nil)
if rv != 0 {
return nil, Errno(rv)
}
if db == nil {
return nil, errors.New("sqlite succeeded without returning a database")
}
return &Conn{db}, nil
}
func Open(filename string) (*Conn, error) {
if C.sqlite3_threadsafe() == 0 {
return nil, errors.New("sqlite library was not compiled for thread-safe operation")
}
var db *C.sqlite3
name := C.CString(filename)
defer C.free(unsafe.Pointer(name))
rv := C.sqlite3_open_v2(name, &db,
C.SQLITE_OPEN_FULLMUTEX|
C.SQLITE_OPEN_READWRITE|
C.SQLITE_OPEN_CREATE,
nil)
if rv != 0 {
return nil, Errno(rv)
}
if db == nil {
return nil, errors.New("sqlite succeeded without returning a database")
}
return &Conn{db}, nil
}
// Open initializes and opens the database.
func (db *Database) Open(flags ...DBFlag) (e error) {
if C.sqlite3_threadsafe() == 0 {
panic("sqlite library is not thread-safe")
}
if db.handle != nil {
e = CANTOPEN
} else {
db.DBFlag = 0
for _, v := range flags {
db.DBFlag |= v
}
cs := C.CString(db.Filename)
defer C.free(unsafe.Pointer(cs))
e = SQLiteError(C.sqlite3_open_v2(cs, &db.handle, C.int(db.DBFlag), nil))
if e == nil && db.handle == nil {
e = CANTOPEN
}
}
return
}
