97 lines
1.8 KiB
Go
97 lines
1.8 KiB
Go
package i3
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import (
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// Standard
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"encoding/binary"
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"fmt"
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"net"
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)
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const (
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RUN_COMMAND = 0
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GET_WORKSPACES = 1
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SUBSCRIBE = 2
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GET_OUTPUTS = 3
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GET_TREE = 4
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GET_MARKS = 5
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GET_BAR_CONFIG = 6
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GET_VERSION = 7
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GET_BINDING_MODES = 8
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GET_CONFIG = 9
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SEND_TICK = 10
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SYNC = 11
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)
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func NewI3Socket(filename string) (I3Socket, error) {
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var i3Socket I3Socket
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var err error
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i3Socket.filename = filename
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err = i3Socket.Open()
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if err != nil {
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return i3Socket, err
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}
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return i3Socket, nil
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}
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func (sock *I3Socket) Open() (err error) {
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sock.conn, err = net.Dial("unix", sock.filename)
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return
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}
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func (sock I3Socket) Close() error {
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return sock.conn.Close()
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}
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func I3ReadMessage(sock I3Socket) (msg []byte, err error) {
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buf := make([]byte, 6)
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if _, err = sock.conn.Read(buf); err != nil {
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return nil, err
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}
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if string(buf) != "i3-ipc" {
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return nil, fmt.Errorf("Invalid i3 IPC answer")
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}
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// LE encoded length
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buf = make([]byte, 4)
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if _, err = sock.conn.Read(buf); err != nil {
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return nil, err
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}
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msgLength := binary.LittleEndian.Uint32(buf)
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// LE encoded msg type
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buf = make([]byte, 4)
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if _, err = sock.conn.Read(buf); err != nil {
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return nil, err
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}
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// Requested data
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buf = make([]byte, msgLength)
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if _, err = sock.conn.Read(buf); err != nil {
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return nil, err
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}
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msg = buf
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return
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}
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func (sock I3Socket) Request(typ int, message string) ([]byte, error) {
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header := []byte("i3-ipc")
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buf := make([]byte, 8)
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binary.LittleEndian.PutUint32(buf, uint32(len(message)))
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binary.LittleEndian.PutUint32(buf[4:], uint32(typ))
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msg := append(header, buf...)
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msg = append(msg, ([]byte(message))...)
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_, err := sock.conn.Write(msg)
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if err != nil {
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return nil, err
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}
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buf, err = I3ReadMessage(sock)
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if err != nil {
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return nil, err
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}
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return buf, nil
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}
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