Merge pull request ethereum#32 from rus-alex/feature/api-deadline

API call timeout

Author: uprendis

rpc/service.go

@@ -24,6 +24,7 @@ import (
 	"runtime"
 	"strings"
 	"sync"
+	"time"
 	"unicode"
 
 	"github.com/ethereum/go-ethereum/log"
@@ -182,6 +183,9 @@ func (c *callback) makeArgTypes() {
 
 // call invokes the callback.
 func (c *callback) call(ctx context.Context, method string, args []reflect.Value) (res interface{}, errRes error) {
+	ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
+	defer cancel()
+
 	// Create the argument slice.
 	fullargs := make([]reflect.Value, 0, 2+len(args))
 	if c.rcvr.IsValid() {