and write_blocked.
(CONNECTION_WRITE_BUFFER_STOP_THRESHOLD)
(CONNECTION_WRITE_BUFFER_START_THRESHOLD): New constants.
(stop_gateway, start_gateway): New functions.
(oop_write_service): New function.
(service_start_write, service_stop_write): New functions.
(write_packet): Use service_start_write and service_stop_write.
(oop_read_service): Added assert.
(make_lsh_connection): Initialize write_active and write_blocked.
(DEFINE_COMMAND2): Call gateway_start_read.
(fork_lsh_transport): If messages are logged to file, dup that fd
to stderr for the child process.

Rev: src/lsh.c:1.206