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terminal.py

This commit is contained in:
Max 2017-12-22 18:08:46 -05:00
parent 0fcef6a5be
commit 04692d23e2
1 changed files with 127 additions and 13 deletions
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140
op25/gr-op25_repeater/apps/terminal.py Normal file → Executable file
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@ -28,11 +28,28 @@ import time
import json
import threading
import traceback
import socket
from gnuradio import gr
KEEPALIVE_TIME = 3.0 # no data received in (seconds)
class q_watcher(threading.Thread):
def __init__(self, msgq, callback, **kwds):
threading.Thread.__init__ (self, **kwds)
self.setDaemon(1)
self.msgq = msgq
self.callback = callback
self.keep_running = True
self.start()
def run(self):
while(self.keep_running):
msg = self.msgq.delete_head()
self.callback(msg)
class curses_terminal(threading.Thread):
def __init__(self, input_q, output_q, **kwds):
def __init__(self, input_q, output_q, sock=None, **kwds):
threading.Thread.__init__ (self, **kwds)
self.setDaemon(1)
self.input_q = input_q
@ -41,6 +58,7 @@ class curses_terminal(threading.Thread):
self.last_update = 0
self.auto_update = True
self.current_nac = None
self.sock = sock
self.start()
def setup_curses(self):
@ -58,7 +76,7 @@ class curses_terminal(threading.Thread):
self.textpad = curses.textpad.Textbox(self.text_win)
def end_curses(self):
def end_terminal(self):
try:
curses.endwin()
except:
@ -81,17 +99,14 @@ class curses_terminal(threading.Thread):
COMMANDS = {_ORD_S: 'skip', _ORD_L: 'lockout', _ORD_H: 'hold'}
c = self.stdscr.getch()
if c == ord('u') or self.do_auto_update():
msg = gr.message().make_from_string('update', -2, 0, 0)
self.output_q.insert_tail(msg)
self.send_command('update', 0)
if c in COMMANDS.keys():
msg = gr.message().make_from_string(COMMANDS[c], -2, 0, 0)
self.output_q.insert_tail(msg)
self.send_command(COMMANDS[c], 0)
elif c == ord('q'):
return True
elif c == ord('t'):
if self.current_nac:
msg = gr.message().make_from_string('add_default_config', -2, int(self.current_nac), 0)
self.output_q.insert_tail(msg)
self.send_command('add_default_config', int(self.current_nac))
elif c == ord('f'):
self.prompt.addstr(0, 0, 'Frequency')
self.prompt.refresh()
@ -108,8 +123,7 @@ class curses_terminal(threading.Thread):
except:
freq = None
if freq:
msg = gr.message().make_from_string('set_freq', -2, freq, 0)
self.output_q.insert_tail(msg)
self.send_command('set_freq', freq)
elif c == ord('x'):
assert 1 == 0
return False
@ -170,6 +184,13 @@ class curses_terminal(threading.Thread):
return self.process_json(msg.to_string())
return False
def send_command(self, command, data):
if self.sock:
self.sock.send(json.dumps({'command': command, 'data': data}))
else:
msg = gr.message().make_from_string(command, -2, data, 0)
self.output_q.insert_tail(msg)
def run(self):
try:
self.setup_curses()
@ -182,6 +203,99 @@ class curses_terminal(threading.Thread):
sys.stderr.write('terminal: exception occurred\n')
sys.stderr.write('terminal: exception:\n%s\n' % traceback.format_exc())
finally:
self.end_curses()
msg = gr.message().make_from_string('quit', -2, 0, 0)
self.output_q.insert_tail(msg)
self.end_terminal()
self.keep_running = False
self.send_command('quit', 0)
class udp_terminal(threading.Thread):
def __init__(self, input_q, output_q, port, **kwds):
threading.Thread.__init__ (self, **kwds)
self.setDaemon(1)
self.input_q = input_q
self.output_q = output_q
self.keep_running = True
self.port = port
self.remote_ip = '127.0.0.1'
self.remote_port = 0
self.keepalive_until = 0
self.setup_socket(port)
self.q_handler = q_watcher(self.input_q, self.process_qmsg)
self.start()
def setup_socket(self, port):
self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.sock.bind(('0.0.0.0', port))
def process_qmsg(self, msg):
if time.time() >= self.keepalive_until:
return
s = msg.to_string()
if msg.type() == -4 and self.remote_port > 0:
self.sock.sendto(s, (self.remote_ip, self.remote_port))
def end_terminal(self):
self.keep_running = False
def run(self):
while self.keep_running:
data, addr = self.sock.recvfrom(2048)
data = json.loads(data)
if data['command'] == 'quit':
self.keepalive_until = 0
continue
msg = gr.message().make_from_string(str(data['command']), -2, data['data'], 0)
self.output_q.insert_tail(msg)
self.remote_ip = addr[0]
self.remote_port = addr[1]
self.keepalive_until = time.time() + KEEPALIVE_TIME
def op25_terminal(input_q, output_q, terminal_type):
if terminal_type == 'curses':
return curses_terminal(input_q, output_q)
elif terminal_type[0].isdigit():
port = int(terminal_type)
return udp_terminal(input_q, output_q, port)
else:
sys.stderr.write('warning: unsupported terminal type: %s\n', terminal_type)
return None
class terminal_client(object):
def __init__(self):
self.input_q = gr.msg_queue(10)
self.keep_running = True
self.terminal = None
ip_addr = sys.argv[1]
port = int(sys.argv[2])
self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.sock.connect((ip_addr, port))
self.sock.settimeout(0.1)
self.terminal = curses_terminal(self.input_q, None, sock=self.sock)
def run(self):
while self.keep_running:
try:
js, addr = self.sock.recvfrom(2048)
msg = gr.message().make_from_string(js, -4, 0, 0)
self.input_q.insert_tail(msg)
except socket.timeout:
pass
except:
raise
if not self.terminal.keep_running:
self.keep_running = False
if __name__ == '__main__':
terminal = None
try:
terminal = terminal_client()
terminal.run()
except:
sys.stderr.write('terminal: exception occurred\n')
sys.stderr.write('terminal: exception:\n%s\n' % traceback.format_exc())
finally:
if terminal is not None and terminal.terminal is not None:
terminal.terminal.end_terminal()