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v/vlib/x/websocket/io.v

103 lines
2.2 KiB
V

module websocket
import net
import time
interface WebsocketIO {
socket_read(mut buffer []byte) ?int
socket_write(bytes []byte) ?
}
// socket_read reads into the provided buffer with its length
fn (mut ws Client) socket_read(mut buffer []byte) ?int {
lock {
if ws.state in [.closed, .closing] || ws.conn.sock.handle <= 1 {
return error('socket_read: trying to read a closed socket')
}
if ws.is_ssl {
r := ws.ssl_conn.read_into(mut buffer)?
return r
} else {
for {
r := ws.conn.read(mut buffer) or {
if errcode == net.err_timed_out_code {
continue
}
return error(err)
}
return r
}
}
}
}
fn (mut ws Client) socket_read_ptr(buf_ptr byteptr, len int) ?int {
lock {
if ws.state in [.closed, .closing] || ws.conn.sock.handle <= 1 {
return error('socket_read_ptr: trying to read a closed socket')
}
if ws.is_ssl {
r := ws.ssl_conn.socket_read_into_ptr(buf_ptr, len)?
return r
} else {
for {
r := ws.conn.read_ptr(buf_ptr, len) or {
if errcode == net.err_timed_out_code {
continue
}
return error(err)
}
return r
}
}
}
}
// socket_write, writes the whole byte array provided to the socket
fn (mut ws Client) socket_write(bytes []byte) ? {
lock {
if ws.state == .closed || ws.conn.sock.handle <= 1 {
ws.debug_log('socket_write: Socket allready closed')
return error('socket_write: trying to write on a closed socket')
}
if ws.is_ssl {
ws.ssl_conn.write(bytes)?
} else {
for {
ws.conn.write(bytes) or {
if errcode == net.err_timed_out_code {
continue
}
return error(err)
}
return
}
}
}
}
// shutdown_socket, proper shutdown make PR in Emeliy repo
fn (mut ws Client) shutdown_socket() ? {
ws.debug_log('shutting down socket')
if ws.is_ssl {
ws.ssl_conn.shutdown()?
} else {
ws.conn.close()?
}
return none
}
// dial_socket, setup socket communication, options and timeouts
fn (mut ws Client) dial_socket() ?net.TcpConn {
mut t := net.dial_tcp('$ws.uri.hostname:$ws.uri.port')?
optval := int(1)
t.sock.set_option_int(.keep_alive, optval)?
t.set_read_timeout(10 * time.millisecond)
t.set_write_timeout(10 * time.millisecond)
if ws.is_ssl {
ws.ssl_conn.connect(mut t)?
}
return t
}