allocations improvements and tunnel fixes (#1248)

* reduce allocations in tunnel code

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* another allocation fix

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* allocate maps with len if it known

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

* allocate key for send once

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
This commit is contained in:
2020-02-24 17:15:20 +03:00
committed by GitHub
parent 01d88601c0
commit 5b0175c2e5
13 changed files with 58 additions and 31 deletions

View File

@@ -155,7 +155,7 @@ func (g *grpcCodec) ReadHeader(m *codec.Message, mt codec.MessageType) error {
m = new(codec.Message)
}
if m.Header == nil {
m.Header = make(map[string]string)
m.Header = make(map[string]string, len(md))
}
for k, v := range md {
m.Header[k] = strings.Join(v, ",")

View File

@@ -110,13 +110,18 @@ func (g *grpcClient) next(request client.Request, opts client.CallOptions) (sele
}
func (g *grpcClient) call(ctx context.Context, node *registry.Node, req client.Request, rsp interface{}, opts client.CallOptions) error {
var header map[string]string
address := node.Address
header := make(map[string]string)
header = make(map[string]string)
if md, ok := metadata.FromContext(ctx); ok {
header = make(map[string]string, len(md))
for k, v := range md {
header[k] = v
}
} else {
header = make(map[string]string)
}
// set timeout in nanoseconds
@@ -182,13 +187,17 @@ func (g *grpcClient) call(ctx context.Context, node *registry.Node, req client.R
}
func (g *grpcClient) stream(ctx context.Context, node *registry.Node, req client.Request, opts client.CallOptions) (client.Stream, error) {
var header map[string]string
address := node.Address
header := make(map[string]string)
if md, ok := metadata.FromContext(ctx); ok {
header = make(map[string]string, len(md))
for k, v := range md {
header[k] = v
}
} else {
header = make(map[string]string)
}
// set timeout in nanoseconds

View File

@@ -27,7 +27,7 @@ func (r *response) Header() map[string]string {
if err != nil {
return map[string]string{}
}
hdr := make(map[string]string)
hdr := make(map[string]string, len(md))
for k, v := range md {
hdr[k] = strings.Join(v, ",")
}