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This commit is contained in:
Zoltán Papp 2024-06-03 11:22:16 +02:00
parent 4ced07dd8d
commit 57ddb5f262
1 changed files with 9 additions and 0 deletions
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9
relay/client/client.go
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@ -28,6 +28,10 @@ type connContainer struct {
messages chan Msg
}
// Client is a client for the relay server. It is responsible for establishing a connection to the relay server and
// managing connections to other peers. All exported functions are safe to call concurrently. After close the connection,
// the client can be reused by calling Connect again. When the client is closed, all connections are closed too.
// While the Connect is in progress, the OpenConn function will block until the connection is established.
type Client struct {
log *log.Entry
parentCtx context.Context
@ -49,6 +53,7 @@ type Client struct {
listenerMutex sync.Mutex
}
// NewClient creates a new client for the relay server. The client is not connected to the server until the Connect
func NewClient(ctx context.Context, serverAddress, peerID string) *Client {
hashedID, hashedStringId := messages.HashID(peerID)
return &Client{
@ -61,12 +66,14 @@ func NewClient(ctx context.Context, serverAddress, peerID string) *Client {
}
}
// SetOnDisconnectListener sets a function that will be called when the connection to the relay server is closed.
func (c *Client) SetOnDisconnectListener(fn func()) {
c.listenerMutex.Lock()
defer c.listenerMutex.Unlock()
c.onDisconnectListener = fn
}
// Connect establishes a connection to the relay server. It blocks until the connection is established or an error occurs.
func (c *Client) Connect() error {
c.readLoopMutex.Lock()
defer c.readLoopMutex.Unlock()
@ -121,6 +128,7 @@ func (c *Client) OpenConn(dstPeerID string) (net.Conn, error) {
return conn, nil
}
// RelayRemoteAddress returns the IP address of the relay server. It could change after the close and reopen the connection.
func (c *Client) RelayRemoteAddress() (net.Addr, error) {
c.mu.Lock()
defer c.mu.Unlock()
@ -130,6 +138,7 @@ func (c *Client) RelayRemoteAddress() (net.Addr, error) {
return c.remoteAddr, nil
}
// Close closes the connection to the relay server and all connections to other peers.
func (c *Client) Close() error {
c.readLoopMutex.Lock()
defer c.readLoopMutex.Unlock()