unistack-org/micro-server-grpc
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grpc: avoid allocations for each message (#1939)

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Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
This commit is contained in:
Василий Толстов 2020-08-18 16:24:11 +03:00
parent 242c0acf1e
commit a8144c0d7c
1 changed files with 27 additions and 17 deletions
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44
grpc.go
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@ -64,6 +64,8 @@ type grpcServer struct {
// registry service instance // registry service instance
rsvc *registry.Service rsvc *registry.Service
codecs map[string]encoding.Codec
} }
func init() { func init() {
@ -73,22 +75,19 @@ func init() {
} }
func newGRPCServer(opts ...server.Option) server.Server { func newGRPCServer(opts ...server.Option) server.Server {
options := newOptions(opts...)
// create a grpc server // create a grpc server
srv := &grpcServer{ srv := &grpcServer{
opts: options, opts: server.Options{},
rpc: &rServer{ rpc: &rServer{
serviceMap: make(map[string]*service), serviceMap: make(map[string]*service),
}, },
handlers: make(map[string]server.Handler), handlers: make(map[string]server.Handler),
subscribers: make(map[*subscriber][]broker.Subscriber), subscribers: make(map[*subscriber][]broker.Subscriber),
exit: make(chan chan error), exit: make(chan chan error),
wg: wait(options.Context),
} }
// configure the grpc server // configure the grpc server
srv.configure() srv.configure(opts...)
return srv return srv
} }
@ -110,8 +109,8 @@ func (g *grpcServer) configure(opts ...server.Option) {
g.Lock() g.Lock()
defer g.Unlock() defer g.Unlock()
// Don't reprocess where there's no config // Don't reprocess if server created
if len(opts) == 0 && g.srv != nil { if g.srv != nil {
return return
} }
@ -121,6 +120,22 @@ func (g *grpcServer) configure(opts ...server.Option) {
g.wg = wait(g.opts.Context) g.wg = wait(g.opts.Context)
g.codecs = make(map[string]encoding.Codec, len(defaultGRPCCodecs))
for k, v := range defaultGRPCCodecs {
g.codecs[k] = v
}
var codecs map[string]encoding.Codec
if g.opts.Context != nil {
if v, ok := g.opts.Context.Value(codecsKey{}).(map[string]encoding.Codec); ok && v != nil {
codecs = v
}
}
for k, v := range codecs {
g.codecs[k] = v
}
maxMsgSize := g.getMaxMsgSize() maxMsgSize := g.getMaxMsgSize()
gopts := []grpc.ServerOption{ gopts := []grpc.ServerOption{
@ -519,18 +534,13 @@ func (g *grpcServer) processStream(stream grpc.ServerStream, service *service, m
} }
func (g *grpcServer) newGRPCCodec(contentType string) (encoding.Codec, error) { func (g *grpcServer) newGRPCCodec(contentType string) (encoding.Codec, error) {
codecs := make(map[string]encoding.Codec) g.RLock()
if g.opts.Context != nil { defer g.RUnlock()
if v, ok := g.opts.Context.Value(codecsKey{}).(map[string]encoding.Codec); ok && v != nil {
codecs = v if c, ok := g.codecs[contentType]; ok {
}
}
if c, ok := codecs[contentType]; ok {
return c, nil
}
if c, ok := defaultGRPCCodecs[contentType]; ok {
return c, nil return c, nil
} }
return nil, fmt.Errorf("Unsupported Content-Type: %s", contentType) return nil, fmt.Errorf("Unsupported Content-Type: %s", contentType)
} }