2 files changed, 82 insertions, 23 deletions
diff --git a/rpc/codec/codec.go b/rpc/codec/codec.go
index 5e8f38438..3177f77e4 100644
--- a/rpc/codec/codec.go
+++ b/rpc/codec/codec.go
@@ -12,7 +12,7 @@ type Codec int
 // (de)serialization support for rpc interface
 type ApiCoder interface {
 	// Parse message to request from underlying stream
-	ReadRequest() (*shared.Request, error)
+	ReadRequest() ([]*shared.Request, bool, error)
 	// Parse response message from underlying stream
 	ReadResponse() (interface{}, error)
 	// Encode response to encoded form in underlying stream
diff --git a/rpc/codec/json.go b/rpc/codec/json.go
index 31024ee74..0b1a90562 100644
--- a/rpc/codec/json.go
+++ b/rpc/codec/json.go
@@ -2,71 +2,130 @@ package codec
 
 import (
 	"encoding/json"
+	"fmt"
 	"net"
+	"time"
 
 	"github.com/ethereum/go-ethereum/rpc/shared"
 )
 
 const (
-	MAX_RESPONSE_SIZE = 64 * 1024
+	READ_TIMEOUT      = 15 // read timeout in seconds
+	MAX_REQUEST_SIZE  = 1024 * 1024
+	MAX_RESPONSE_SIZE = 1024 * 1024
 )
 
 // Json serialization support
 type JsonCodec struct {
 	c net.Conn
-	d *json.Decoder
-	e *json.Encoder
 }
 
 // Create new JSON coder instance
 func NewJsonCoder(conn net.Conn) ApiCoder {
 	return &JsonCodec{
 		c: conn,
-		d: json.NewDecoder(conn),
-		e: json.NewEncoder(conn),
 	}
 }
 
 // Serialize obj to JSON and write it to conn
-func (self *JsonCodec) ReadRequest() (*shared.Request, error) {
-	req := shared.Request{}
-	err := self.d.Decode(&req)
-	if err == nil {
-		return &req, nil
+func (self *JsonCodec) ReadRequest() (requests []*shared.Request, isBatch bool, err error) {
+	bytesInBuffer := 0
+	buf := make([]byte, MAX_REQUEST_SIZE)
+
+	deadline := time.Now().Add(READ_TIMEOUT * time.Second)
+	if err := self.c.SetDeadline(deadline); err != nil {
+		return nil, false, err
+	}
+
+	for {
+		n, err := self.c.Read(buf[bytesInBuffer:])
+		if err != nil {
+			self.c.Close()
+			return nil, false, err
+		}
+
+		bytesInBuffer += n
+
+		singleRequest := shared.Request{}
+		err = json.Unmarshal(buf[:bytesInBuffer], &singleRequest)
+		if err == nil {
+			requests := make([]*shared.Request, 1)
+			requests[0] = &singleRequest
+			return requests, false, nil
+		}
+
+		requests = make([]*shared.Request, 0)
+		err = json.Unmarshal(buf[:bytesInBuffer], &requests)
+		if err == nil {
+			return requests, true, nil
+		}
 	}
-	return nil, err
+
+	self.c.Close() // timeout
+	return nil, false, fmt.Errorf("Unable to read response")
 }
 
 func (self *JsonCodec) ReadResponse() (interface{}, error) {
-	var err error
+	bytesInBuffer := 0
 	buf := make([]byte, MAX_RESPONSE_SIZE)
-	n, _ := self.c.Read(buf)
 
-	var failure shared.ErrorResponse
-	if err = json.Unmarshal(buf[:n], &failure); err == nil && failure.Error != nil {
-		return failure, nil
+	deadline := time.Now().Add(READ_TIMEOUT * time.Second)
+	if err := self.c.SetDeadline(deadline); err != nil {
+		return nil, err
 	}
 
-	var success shared.SuccessResponse
-	if err = json.Unmarshal(buf[:n], &success); err == nil {
-		return success, nil
+	for {
+		n, err := self.c.Read(buf[bytesInBuffer:])
+		if err != nil {
+			return nil, err
+		}
+		bytesInBuffer += n
+
+		var success shared.SuccessResponse
+		if err = json.Unmarshal(buf[:bytesInBuffer], &success); err == nil {
+			return success, nil
+		}
+
+		var failure shared.ErrorResponse
+		if err = json.Unmarshal(buf[:bytesInBuffer], &failure); err == nil && failure.Error != nil {
+			return failure, nil
+		}
 	}
 
-	return nil, err
+	self.c.Close()
+	return nil, fmt.Errorf("Unable to read response")
 }
 
-// Encode response to encoded form in underlying stream
+// Decode data
 func (self *JsonCodec) Decode(data []byte, msg interface{}) error {
 	return json.Unmarshal(data, msg)
 }
 
+// Encode message
 func (self *JsonCodec) Encode(msg interface{}) ([]byte, error) {
 	return json.Marshal(msg)
 }
 
 // Parse JSON data from conn to obj
 func (self *JsonCodec) WriteResponse(res interface{}) error {
-	return self.e.Encode(&res)
+	data, err := json.Marshal(res)
+	if err != nil {
+		self.c.Close()
+		return err
+	}
+
+	bytesWritten := 0
+
+	for bytesWritten < len(data) {
+		n, err := self.c.Write(data[bytesWritten:])
+		if err != nil {
+			self.c.Close()
+			return err
+		}
+		bytesWritten += n
+	}
+
+	return nil
 }
 
 // Close decoder and encoder