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appsender_client.go
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appsender_client.go
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// Copyright (C) 2019-2022, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package appsender
import (
"context"
"github.com/ava-labs/avalanchego/ids"
"github.com/ava-labs/avalanchego/snow/engine/common"
appsenderpb "github.com/ava-labs/avalanchego/proto/pb/appsender"
)
var _ common.AppSender = &Client{}
type Client struct {
client appsenderpb.AppSenderClient
}
// NewClient returns a client that is connected to a remote AppSender.
func NewClient(client appsenderpb.AppSenderClient) *Client {
return &Client{client: client}
}
func (c *Client) SendAppRequest(nodeIDs ids.NodeIDSet, requestID uint32, request []byte) error {
nodeIDsBytes := make([][]byte, nodeIDs.Len())
i := 0
for nodeID := range nodeIDs {
nodeID := nodeID // Prevent overwrite in next iteration
nodeIDsBytes[i] = nodeID[:]
i++
}
_, err := c.client.SendAppRequest(
context.Background(),
&appsenderpb.SendAppRequestMsg{
NodeIds: nodeIDsBytes,
RequestId: requestID,
Request: request,
},
)
return err
}
func (c *Client) SendAppResponse(nodeID ids.NodeID, requestID uint32, response []byte) error {
_, err := c.client.SendAppResponse(
context.Background(),
&appsenderpb.SendAppResponseMsg{
NodeId: nodeID[:],
RequestId: requestID,
Response: response,
},
)
return err
}
func (c *Client) SendAppGossip(msg []byte) error {
_, err := c.client.SendAppGossip(
context.Background(),
&appsenderpb.SendAppGossipMsg{
Msg: msg,
},
)
return err
}
func (c *Client) SendAppGossipSpecific(nodeIDs ids.NodeIDSet, msg []byte) error {
nodeIDsBytes := make([][]byte, nodeIDs.Len())
i := 0
for nodeID := range nodeIDs {
nodeID := nodeID // Prevent overwrite in next iteration
nodeIDsBytes[i] = nodeID[:]
i++
}
_, err := c.client.SendAppGossipSpecific(
context.Background(),
&appsenderpb.SendAppGossipSpecificMsg{
NodeIds: nodeIDsBytes,
Msg: msg,
},
)
return err
}