101 lines
2.3 KiB
V
101 lines
2.3 KiB
V
module websocket
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import net
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import time
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// socket_read reads from socket into the provided buffer
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fn (mut ws Client) socket_read(mut buffer []byte) ?int {
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lock {
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if ws.state in [.closed, .closing] || ws.conn.sock.handle <= 1 {
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return error('socket_read: trying to read a closed socket')
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}
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if ws.is_ssl {
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r := ws.ssl_conn.read(mut buffer) ?
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return r
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} else {
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for {
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r := ws.conn.read(mut buffer) or {
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if err.code == net.err_timed_out_code {
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continue
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}
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return err
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}
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return r
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}
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}
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}
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return none
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}
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// socket_read reads from socket into the provided byte pointer and length
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fn (mut ws Client) socket_read_ptr(buf_ptr &byte, len int) ?int {
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lock {
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if ws.state in [.closed, .closing] || ws.conn.sock.handle <= 1 {
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return error('socket_read_ptr: trying to read a closed socket')
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}
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if ws.is_ssl {
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r := ws.ssl_conn.socket_read_into_ptr(buf_ptr, len) ?
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return r
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} else {
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for {
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r := ws.conn.read_ptr(buf_ptr, len) or {
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if err.code == net.err_timed_out_code {
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continue
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}
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return err
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}
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return r
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}
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}
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}
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return none
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}
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// socket_write writes the provided byte array to the socket
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fn (mut ws Client) socket_write(bytes []byte) ?int {
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lock {
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if ws.state == .closed || ws.conn.sock.handle <= 1 {
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ws.debug_log('socket_write: Socket allready closed')
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return error('socket_write: trying to write on a closed socket')
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}
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if ws.is_ssl {
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return ws.ssl_conn.write(bytes)
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} else {
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for {
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n := ws.conn.write(bytes) or {
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if err.code == net.err_timed_out_code {
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continue
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}
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return err
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}
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return n
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}
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panic('reached unreachable code')
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}
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}
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}
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// shutdown_socket shuts down the socket properly when connection is closed
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fn (mut ws Client) shutdown_socket() ? {
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ws.debug_log('shutting down socket')
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if ws.is_ssl {
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ws.ssl_conn.shutdown() ?
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} else {
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ws.conn.close() ?
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}
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}
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// dial_socket connects tcp socket and initializes default configurations
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fn (mut ws Client) dial_socket() ?&net.TcpConn {
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tcp_address := '$ws.uri.hostname:$ws.uri.port'
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mut t := net.dial_tcp(tcp_address) ?
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optval := int(1)
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t.sock.set_option_int(.keep_alive, optval) ?
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t.set_read_timeout(30 * time.second)
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t.set_write_timeout(30 * time.second)
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if ws.is_ssl {
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ws.ssl_conn.connect(mut t, ws.uri.hostname) ?
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}
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return t
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}
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