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56 lines
1.4 KiB
56 lines
1.4 KiB
package core_grpc
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import (
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"fmt"
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"net"
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"strings"
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"time"
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"golang.org/x/net/netutil"
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"google.golang.org/grpc"
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cmn "github.com/tendermint/tmlibs/common"
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)
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// Config is an gRPC server configuration.
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type Config struct {
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MaxOpenConnections int
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}
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// StartGRPCServer starts a new gRPC BroadcastAPIServer, listening on
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// protoAddr, in a goroutine. Returns a listener and an error, if it fails to
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// parse an address.
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func StartGRPCServer(protoAddr string, config Config) (net.Listener, error) {
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parts := strings.SplitN(protoAddr, "://", 2)
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if len(parts) != 2 {
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return nil, fmt.Errorf("Invalid listen address for grpc server (did you forget a tcp:// prefix?) : %s", protoAddr)
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}
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proto, addr := parts[0], parts[1]
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ln, err := net.Listen(proto, addr)
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if err != nil {
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return nil, err
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}
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if config.MaxOpenConnections > 0 {
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ln = netutil.LimitListener(ln, config.MaxOpenConnections)
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}
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grpcServer := grpc.NewServer()
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RegisterBroadcastAPIServer(grpcServer, &broadcastAPI{})
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go grpcServer.Serve(ln) // nolint: errcheck
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return ln, nil
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}
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// StartGRPCClient dials the gRPC server using protoAddr and returns a new
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// BroadcastAPIClient.
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func StartGRPCClient(protoAddr string) BroadcastAPIClient {
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conn, err := grpc.Dial(protoAddr, grpc.WithInsecure(), grpc.WithDialer(dialerFunc))
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if err != nil {
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panic(err)
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}
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return NewBroadcastAPIClient(conn)
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}
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func dialerFunc(addr string, timeout time.Duration) (net.Conn, error) {
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return cmn.Connect(addr)
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}
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