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// Copyright 2023 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package conduit
import (
"io"
"net"
"sync"
"github.com/matrix-org/pinecone/types"
"go.uber.org/atomic"
)
type Conduit struct {
closed atomic.Bool
conn net.Conn
portMutex sync.Mutex
port types.SwitchPortID
}
func NewConduit(conn net.Conn, port int) Conduit {
return Conduit{
conn: conn,
port: types.SwitchPortID(port),
}
}
func (c *Conduit) Port() int {
c.portMutex.Lock()
defer c.portMutex.Unlock()
return int(c.port)
}
func (c *Conduit) SetPort(port types.SwitchPortID) {
c.portMutex.Lock()
defer c.portMutex.Unlock()
c.port = port
}
func (c *Conduit) Read(b []byte) (int, error) {
if c.closed.Load() {
return 0, io.EOF
}
return c.conn.Read(b)
}
func (c *Conduit) ReadCopy() ([]byte, error) {
if c.closed.Load() {
return nil, io.EOF
}
var buf [65535 * 2]byte
n, err := c.conn.Read(buf[:])
if err != nil {
return nil, err
}
return buf[:n], nil
}
func (c *Conduit) Write(b []byte) (int, error) {
if c.closed.Load() {
return 0, io.EOF
}
return c.conn.Write(b)
}
func (c *Conduit) Close() error {
if c.closed.Load() {
return io.ErrClosedPipe
}
c.closed.Store(true)
return c.conn.Close()
}
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