49 lines
1.0 KiB
Go
49 lines
1.0 KiB
Go
package grpc
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import (
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"context"
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pb "spektr/internal/grpc/pb"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials/insecure"
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)
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type Client struct {
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conn *grpc.ClientConn
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cancel context.CancelFunc
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stream pb.ReceiverService_ConnectClient
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}
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func Dial(ctx context.Context, addr string) (*Client, error) {
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conn, err := grpc.DialContext(ctx, addr, grpc.WithBlock(), grpc.WithTransportCredentials(insecure.NewCredentials()))
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if err != nil {
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return nil, err
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}
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client := pb.NewReceiverServiceClient(conn)
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streamCtx, cancel := context.WithCancel(context.Background())
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stream, err := client.Connect(streamCtx)
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if err != nil {
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cancel()
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_ = conn.Close()
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return nil, err
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}
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return &Client{conn: conn, cancel: cancel, stream: stream}, nil
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}
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func (c *Client) Send(msg *pb.ClientMessage) (*pb.ServerMessage, error) {
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if err := c.stream.Send(msg); err != nil {
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return nil, err
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}
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return c.stream.Recv()
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}
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func (c *Client) Close() error {
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if c.cancel != nil {
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c.cancel()
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}
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return c.conn.Close()
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}
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