// Close closes a database connection and any dangling statements.
// (See http://sqlite.org/c3ref/close.html)
func (c *Conn) Close() error {
if c == nil {
return errors.New("nil sqlite database")
}
if c.db == nil {
return nil
}
c.stmtCache.flush()
rv := C.sqlite3_close(c.db)
if rv == C.SQLITE_BUSY {
// Dangling statements
stmt := C.sqlite3_next_stmt(c.db, nil)
for stmt != nil {
if C.sqlite3_stmt_busy(stmt) != 0 {
Log(C.SQLITE_MISUSE, "Dangling statement (not reset): \""+C.GoString(C.sqlite3_sql(stmt))+"\"")
} else {
Log(C.SQLITE_MISUSE, "Dangling statement (not finalize): \""+C.GoString(C.sqlite3_sql(stmt))+"\"")
}
C.sqlite3_finalize(stmt)
stmt = C.sqlite3_next_stmt(c.db, nil)
}
rv = C.sqlite3_close(c.db)
}
if rv != C.SQLITE_OK {
Log(int32(rv), "error while closing Conn")
return c.error(rv, "Conn.Close")
}
c.db = nil
return 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
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 (c *Conn) Close() os.Error {
rv := C.sqlite3_close(c.db)
if rv != 0 {
return c.error(rv)
}
return nil
}
func (conn Conn) Close() error {
r := C.sqlite3_close(conn.db)
if r != C.SQLITE_OK {
return driver.ErrBadConn
}
return nil
}
func (c *conn) Close() error {
if c.closed {
panic("database/sql/driver: misuse of sqlite driver: multiple Close")
}
c.closed = true
rv := C.sqlite3_close(c.db)
c.db = nil
return c.error(rv)
}
func (c *Conn) Close() error {
if c == nil || c.db == nil {
return errors.New("nil sqlite database")
}
rv := C.sqlite3_close(c.db)
if rv != 0 {
return c.error(rv)
}
c.db = nil
return nil
}
// Close the connection.
func (c *SQLiteConn) Close() error {
s := C.sqlite3_next_stmt(c.db, nil)
for s != nil {
C.sqlite3_finalize(s)
s = C.sqlite3_next_stmt(c.db, nil)
}
rv := C.sqlite3_close(c.db)
if rv != C.SQLITE_OK {
return errors.New("error while closing sqlite database connection")
}
c.db = nil
return nil
}
func (c *SQLiteConn) Close() error {
s := C.sqlite3_next_stmt(c.db, nil)
for s != nil {
C.sqlite3_finalize(s)
s = C.sqlite3_next_stmt(c.db, nil)
}
rv := C.sqlite3_close(c.db)
if rv != C.SQLITE_OK {
return errors.New("sqlite succeeded without returning a database")
}
c.db = nil
return nil
}
// Close the connection.
func (c *SQLiteConn) Close() error {
s := C.sqlite3_next_stmt(c.db, nil)
for s != nil {
C.sqlite3_finalize(s)
s = C.sqlite3_next_stmt(c.db, nil)
}
rv := C.sqlite3_close(c.db)
if rv != C.SQLITE_OK {
return ErrNo(rv)
}
c.db = nil
return nil
}
// Close releases all resources associated with the connection. If any prepared
// statements, incremental I/O operations, or backup operations are still
// active, the connection becomes an unusable "zombie" and is closed after all
// remaining statements and operations are destroyed. A BUSY error code is
// returned if the connection is left in this "zombie" status, which may
// indicate a programming error where some previously allocated resource is not
// properly released.
// [http://www.sqlite.org/c3ref/close.html]
func (c *Conn) Close() error {
if db := c.db; db != nil {
c.db = nil
runtime.SetFinalizer(c, nil)
if rc := C.sqlite3_close(db); rc != OK {
err := libErr(rc, db)
if rc == BUSY {
C.sqlite3_close_v2(db)
}
return err
}
*c = Conn{} // Clear callback handlers only if db was closed
}
return 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
}
// 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 (self *sqlConnection) sqlClose() int {
return int(C.sqlite3_close(self.handle))
}
func (h *Handle) Close() {
C.sqlite3_close(h.cptr)
h.cptr = nil
}
func (db *Database) Close() {
C.sqlite3_close(db.handle)
db.handle = nil
}
