// NewHTTP2Client creates a new HTTP2Client.
func NewHTTP2Client(
connectionConnectTimeout time.Duration,
connectionExpiry time.Duration) (*HTTP2Client, error) {
client := new(HTTP2Client)
client.conns = leverutil.NewCache(
connectionExpiry,
func(addr string) (interface{}, error) {
clientLogger.WithFields("addr", addr).Debug("New connection")
netConn, err := net.DialTimeout(
"tcp", addr, connectionConnectTimeout)
if err != nil {
return nil, err
}
conn, err := newHTTP2Connection(false, netConn, nil)
if err != nil {
return nil, err
}
// Remove connection from pool if it gets closed.
go client.destroyOnClose(addr, conn)
return conn, nil
},
func(element interface{}) {
clientLogger.Debug("Closing connection")
element.(*http2Connection).close(nil)
})
return client, nil
}
// NewGRPCPool returns a new GRPC connection pool.
func NewGRPCPool() (*GRPCPool, error) {
expiry := GRPCUnusedTimeoutFlag.Get()
pool := new(GRPCPool)
pool.conns = leverutil.NewCache(
expiry,
func(addr string) (interface{}, error) {
return grpc.Dial(addr, grpc.WithInsecure())
},
func(conn interface{}) {
conn.(*grpc.ClientConn).Close()
},
)
return pool, nil
}