func (s *S) TestUnmarshalAllItemsWithPtrSetter(c *C) {
for _, item := range allItems {
for i := 0; i != 2; i++ {
var field *setterType
if i == 0 {
obj := &ptrSetterDoc{}
err := bson.Unmarshal([]byte(wrapInDoc(item.data)), obj)
c.Assert(err, IsNil)
field = obj.Field
} else {
obj := &valSetterDoc{}
err := bson.Unmarshal([]byte(wrapInDoc(item.data)), obj)
c.Assert(err, IsNil)
field = &obj.Field
}
if item.data == "" {
// Nothing to unmarshal. Should be untouched.
if i == 0 {
c.Assert(field, IsNil)
} else {
c.Assert(field.received, IsNil)
}
} else {
expected := item.obj.(bson.M)["_"]
c.Assert(field, NotNil, Commentf("Pointer not initialized (%#v)", expected))
c.Assert(field.received, DeepEquals, expected)
}
}
}
}
func (s *S) TestUnmarshalMapDocumentTooShort(c *C) {
for _, data := range corruptedData {
err := bson.Unmarshal([]byte(data), bson.M{})
c.Assert(err, ErrorMatches, "Document is corrupted")
err = bson.Unmarshal([]byte(data), &struct{}{})
c.Assert(err, ErrorMatches, "Document is corrupted")
}
}
func (socket *mongoSocket) loginRun(db string, query, result interface{}, f func() error) error {
var mutex sync.Mutex
var replyErr error
mutex.Lock()
op := queryOp{}
op.query = query
op.collection = db + ".$cmd"
op.limit = -1
op.replyFunc = func(err error, reply *replyOp, docNum int, docData []byte) {
defer mutex.Unlock()
if err != nil {
replyErr = err
return
}
err = bson.Unmarshal(docData, result)
if err != nil {
replyErr = err
} else {
// Must handle this within the read loop for the socket, so
// that concurrent login requests are properly ordered.
replyErr = f()
}
}
err := socket.Query(&op)
if err != nil {
return err
}
mutex.Lock() // Wait.
return replyErr
}
func (s *S) TestUnmarshalAllItems(c *C) {
for i, item := range allItems {
value := bson.M{}
err := bson.Unmarshal([]byte(wrapInDoc(item.data)), value)
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, item.obj, Commentf("Failed on item %d: %#v", i, item))
}
}
// GetMeta unmarshals the optional "metadata" field associated with the
// file into the result parameter. The meaning of keys under that field
// is user-defined. For example:
//
// result := struct{ INode int }{}
// err = file.GetMeta(&result)
// if err != nil {
// panic(err.String())
// }
// fmt.Printf("inode: %d\n", result.INode)
//
func (file *GridFile) GetMeta(result interface{}) (err error) {
file.m.Lock()
if file.doc.Metadata != nil {
err = bson.Unmarshal(file.doc.Metadata.Data, result)
}
file.m.Unlock()
return
}
func (s *S) TestUnmarshalZeroesMap(c *C) {
data, err := bson.Marshal(bson.M{"b": 2})
c.Assert(err, IsNil)
m := bson.M{"a": 1}
err = bson.Unmarshal(data, &m)
c.Assert(err, IsNil)
c.Assert(m, DeepEquals, bson.M{"b": 2})
}
func (s *S) TestUnmarshalNilInStruct(c *C) {
// Nil is the default value, so we need to ensure it's indeed being set.
b := byte(1)
v := &struct{ Ptr *byte }{&b}
err := bson.Unmarshal([]byte(wrapInDoc("\x0Aptr\x00")), v)
c.Assert(err, IsNil)
c.Assert(v, DeepEquals, &struct{ Ptr *byte }{nil})
}
func (s *S) TestUnmarshalSampleItems(c *C) {
for i, item := range sampleItems {
value := bson.M{}
err := bson.Unmarshal([]byte(item.data), value)
c.Assert(err, IsNil)
c.Assert(value, DeepEquals, item.obj, Commentf("Failed on item %d", i))
}
}
func (s *S) TestMarshalWithGetterNil(c *C) {
obj := docWithGetterField{}
data, err := bson.Marshal(obj)
c.Assert(err, IsNil)
m := bson.M{}
err = bson.Unmarshal(data, m)
c.Assert(err, IsNil)
c.Assert(m, DeepEquals, bson.M{"_": "<value is nil>"})
}
func (s *S) TestMarshalShortWithGetter(c *C) {
obj := typeWithIntGetter{42}
data, err := bson.Marshal(obj)
c.Assert(err, IsNil)
m := bson.M{}
err = bson.Unmarshal(data, m)
c.Assert(err, IsNil)
c.Assert(m["v"], Equals, 42)
}
func (s *S) TestUnmarshalZeroesStruct(c *C) {
data, err := bson.Marshal(bson.M{"b": 2})
c.Assert(err, IsNil)
type T struct{ A, B int }
v := T{A: 1}
err = bson.Unmarshal(data, &v)
c.Assert(err, IsNil)
c.Assert(v.A, Equals, 0)
c.Assert(v.B, Equals, 2)
}
func objToDoc(obj interface{}) (d bson.D, err error) {
data, err := bson.Marshal(obj)
if err != nil {
return nil, err
}
err = bson.Unmarshal(data, &d)
if err != nil {
return nil, err
}
return d, err
}
func (s *S) TestUnmarshalNonNilInterface(c *C) {
data, err := bson.Marshal(bson.M{"b": 2})
c.Assert(err, IsNil)
m := bson.M{"a": 1}
var i interface{}
i = m
err = bson.Unmarshal(data, &i)
c.Assert(err, IsNil)
c.Assert(i, DeepEquals, bson.M{"b": 2})
c.Assert(m, DeepEquals, bson.M{"a": 1})
}
func testCrossPair(c *C, dump interface{}, load interface{}) {
c.Logf("Dump: %#v", dump)
c.Logf("Load: %#v", load)
zero := makeZeroDoc(load)
data, err := bson.Marshal(dump)
c.Assert(err, IsNil)
c.Logf("Dumped: %#v", string(data))
err = bson.Unmarshal(data, zero)
c.Assert(err, IsNil)
c.Logf("Loaded: %#v", zero)
c.Assert(zero, DeepEquals, load)
}
func (s *S) Test64bitInt(c *C) {
var i int64 = (1 << 31)
if int(i) > 0 {
data, err := bson.Marshal(bson.M{"i": int(i)})
c.Assert(err, IsNil)
c.Assert(string(data), Equals, wrapInDoc("\x12i\x00\x00\x00\x00\x80\x00\x00\x00\x00"))
var result struct{ I int }
err = bson.Unmarshal(data, &result)
c.Assert(err, IsNil)
c.Assert(int64(result.I), Equals, i)
}
}
func BenchmarkUnmarhsalStruct(b *testing.B) {
v := BenchT{A: "A", D: "D", E: "E"}
data, err := bson.Marshal(&v)
if err != nil {
panic(err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
err = bson.Unmarshal(data, &v)
}
if err != nil {
panic(err)
}
}
func BenchmarkUnmarhsalMap(b *testing.B) {
m := bson.M{"a": "a", "d": "d", "e": "e"}
data, err := bson.Marshal(&m)
if err != nil {
panic(err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
err = bson.Unmarshal(data, &m)
}
if err != nil {
panic(err)
}
}
func (s *S) TestUnmarshalSetterSetZero(c *C) {
setterResult["foo"] = bson.SetZero
defer delete(setterResult, "field")
data, err := bson.Marshal(bson.M{"field": "foo"})
c.Assert(err, IsNil)
m := map[string]*setterType{}
err = bson.Unmarshal([]byte(data), m)
c.Assert(err, IsNil)
value, ok := m["field"]
c.Assert(ok, Equals, true)
c.Assert(value, IsNil)
}
func (s *S) TestUnmarshalErrorItems(c *C) {
for _, item := range unmarshalErrorItems {
data := []byte(wrapInDoc(item.data))
var value interface{}
switch reflect.ValueOf(item.obj).Kind() {
case reflect.Map, reflect.Ptr:
value = makeZeroDoc(item.obj)
case reflect.Invalid:
value = bson.M{}
default:
value = item.obj
}
err := bson.Unmarshal(data, value)
c.Assert(err, ErrorMatches, item.error)
}
}
func (s *S) TestUnmarshalSetterErrors(c *C) {
boom := errors.New("BOOM")
setterResult["2"] = boom
defer delete(setterResult, "2")
m := map[string]*setterType{}
data := wrapInDoc("\x02abc\x00\x02\x00\x00\x001\x00" +
"\x02def\x00\x02\x00\x00\x002\x00" +
"\x02ghi\x00\x02\x00\x00\x003\x00")
err := bson.Unmarshal([]byte(data), m)
c.Assert(err, Equals, boom)
c.Assert(m["abc"], NotNil)
c.Assert(m["def"], IsNil)
c.Assert(m["ghi"], IsNil)
c.Assert(m["abc"].received, Equals, "1")
}
func (socket *mongoSocket) resetNonce() {
debugf("Socket %p to %s: requesting a new nonce", socket, socket.addr)
op := &queryOp{}
op.query = &getNonceCmd{GetNonce: 1}
op.collection = "admin.$cmd"
op.limit = -1
op.replyFunc = func(err error, reply *replyOp, docNum int, docData []byte) {
if err != nil {
socket.kill(errors.New("getNonce: "+err.Error()), true)
return
}
result := &getNonceResult{}
err = bson.Unmarshal(docData, &result)
if err != nil {
socket.kill(errors.New("Failed to unmarshal nonce: "+err.Error()), true)
return
}
debugf("Socket %p to %s: nonce unmarshalled: %#v", socket, socket.addr, result)
if result.Code == 13390 {
// mongos doesn't yet support auth (see http://j.mp/mongos-auth)
result.Nonce = "mongos"
} else if result.Nonce == "" {
var msg string
if result.Err != "" {
msg = fmt.Sprintf("Got an empty nonce: %s (%d)", result.Err, result.Code)
} else {
msg = "Got an empty nonce"
}
socket.kill(errors.New(msg), true)
return
}
socket.Lock()
if socket.cachedNonce != "" {
socket.Unlock()
panic("resetNonce: nonce already cached")
}
socket.cachedNonce = result.Nonce
socket.gotNonce.Signal()
socket.Unlock()
}
err := socket.Query(op)
if err != nil {
socket.kill(errors.New("resetNonce: "+err.Error()), true)
}
}
func (s *S) TestUnmarshalSetterOmits(c *C) {
setterResult["2"] = &bson.TypeError{}
setterResult["4"] = &bson.TypeError{}
defer func() {
delete(setterResult, "2")
delete(setterResult, "4")
}()
m := map[string]*setterType{}
data := wrapInDoc("\x02abc\x00\x02\x00\x00\x001\x00" +
"\x02def\x00\x02\x00\x00\x002\x00" +
"\x02ghi\x00\x02\x00\x00\x003\x00" +
"\x02jkl\x00\x02\x00\x00\x004\x00")
err := bson.Unmarshal([]byte(data), m)
c.Assert(err, IsNil)
c.Assert(m["abc"], NotNil)
c.Assert(m["def"], IsNil)
c.Assert(m["ghi"], NotNil)
c.Assert(m["jkl"], IsNil)
c.Assert(m["abc"].received, Equals, "1")
c.Assert(m["ghi"].received, Equals, "3")
}
func (s *S) TestUnmarshalWholeDocumentWithSetter(c *C) {
obj := &setterType{}
err := bson.Unmarshal([]byte(sampleItems[0].data), obj)
c.Assert(err, IsNil)
c.Assert(obj.received, DeepEquals, bson.M{"hello": "world"})
}
// Estimated minimum cost per socket: 1 goroutine + memory for the largest
// document ever seen.
func (socket *mongoSocket) readLoop() {
p := make([]byte, 36) // 16 from header + 20 from OP_REPLY fixed fields
s := make([]byte, 4)
conn := socket.conn // No locking, conn never changes.
for {
// XXX Handle timeouts, , etc
err := fill(conn, p)
if err != nil {
socket.kill(err, true)
return
}
totalLen := getInt32(p, 0)
responseTo := getInt32(p, 8)
opCode := getInt32(p, 12)
// Don't use socket.server.Addr here. socket is not
// locked and socket.server may go away.
debugf("Socket %p to %s: got reply (%d bytes)", socket, socket.addr, totalLen)
_ = totalLen
if opCode != 1 {
socket.kill(errors.New("opcode != 1, corrupted data?"), true)
return
}
reply := replyOp{
flags: uint32(getInt32(p, 16)),
cursorId: getInt64(p, 20),
firstDoc: getInt32(p, 28),
replyDocs: getInt32(p, 32),
}
stats.receivedOps(+1)
stats.receivedDocs(int(reply.replyDocs))
socket.Lock()
replyFunc, ok := socket.replyFuncs[uint32(responseTo)]
if ok {
delete(socket.replyFuncs, uint32(responseTo))
}
socket.Unlock()
if replyFunc != nil && reply.replyDocs == 0 {
replyFunc(nil, &reply, -1, nil)
} else {
for i := 0; i != int(reply.replyDocs); i++ {
err := fill(conn, s)
if err != nil {
if replyFunc != nil {
replyFunc(err, nil, -1, nil)
}
socket.kill(err, true)
return
}
b := make([]byte, int(getInt32(s, 0)))
// copy(b, s) in an efficient way.
b[0] = s[0]
b[1] = s[1]
b[2] = s[2]
b[3] = s[3]
err = fill(conn, b[4:])
if err != nil {
if replyFunc != nil {
replyFunc(err, nil, -1, nil)
}
socket.kill(err, true)
return
}
if globalDebug && globalLogger != nil {
m := bson.M{}
if err := bson.Unmarshal(b, m); err == nil {
debugf("Socket %p to %s: received document: %#v", socket, socket.addr, m)
}
}
if replyFunc != nil {
replyFunc(nil, &reply, i, b)
}
// XXX Do bound checking against totalLen.
}
}
socket.Lock()
if len(socket.replyFuncs) == 0 {
// Nothing else to read for now. Disable deadline.
socket.conn.SetReadDeadline(time.Time{})
} else {
socket.updateDeadline(readDeadline)
}
socket.Unlock()
// XXX Do bound checking against totalLen.
}
}
func testUnmarshal(c *C, data string, obj interface{}) {
zero := makeZeroDoc(obj)
err := bson.Unmarshal([]byte(data), zero)
c.Assert(err, IsNil)
c.Assert(zero, DeepEquals, obj)
}