Merge branch 'telans'
Remove unused python file Fix includes Add package build.sh optionpull/20/head
telans
4 years ago
commit
b67a2aad16
@ -1,203 +0,0 @@
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#!/usr/bin/env python3
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import os
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import socket
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import sys
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import select
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from select import EPOLLIN, EPOLLPRI, EPOLLERR
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import time
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from collections import namedtuple
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import argparse
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TIMEOUT = 1.0 # seconds
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VERSION_HEADER = bytearray('MesaOverlayControlVersion', 'utf-8')
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DEVICE_NAME_HEADER = bytearray('DeviceName', 'utf-8')
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MESA_VERSION_HEADER = bytearray('MesaVersion', 'utf-8')
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DEFAULT_SERVER_ADDRESS = "\0mesa_overlay"
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class Connection:
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def __init__(self, path):
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# Create a Unix Domain socket and connect
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sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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try:
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sock.connect(path)
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except socket.error as msg:
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print(msg)
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sys.exit(1)
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self.sock = sock
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# initialize poll interface and register socket
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epoll = select.epoll()
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epoll.register(sock, EPOLLIN | EPOLLPRI | EPOLLERR)
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self.epoll = epoll
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def recv(self, timeout):
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'''
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timeout as float in seconds
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returns:
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- None on error or disconnection
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- bytes() (empty) on timeout
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'''
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events = self.epoll.poll(timeout)
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for ev in events:
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(fd, event) = ev
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if fd != self.sock.fileno():
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continue
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# check for socket error
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if event & EPOLLERR:
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return None
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# EPOLLIN or EPOLLPRI, just read the message
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msg = self.sock.recv(4096)
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# socket disconnected
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if len(msg) == 0:
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return None
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return msg
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return bytes()
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def send(self, msg):
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self.sock.send(msg)
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class MsgParser:
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MSGBEGIN = bytes(':', 'utf-8')[0]
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MSGEND = bytes(';', 'utf-8')[0]
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MSGSEP = bytes('=', 'utf-8')[0]
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def __init__(self, conn):
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self.cmdpos = 0
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self.parampos = 0
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self.bufferpos = 0
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self.reading_cmd = False
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self.reading_param = False
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self.buffer = None
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self.cmd = bytearray(4096)
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self.param = bytearray(4096)
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self.conn = conn
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def readCmd(self, ncmds, timeout=TIMEOUT):
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'''
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returns:
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- None on error or disconnection
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- bytes() (empty) on timeout
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'''
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parsed = []
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remaining = timeout
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while remaining > 0 and ncmds > 0:
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now = time.monotonic()
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if self.buffer == None:
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self.buffer = self.conn.recv(remaining)
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self.bufferpos = 0
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# disconnected or error
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if self.buffer == None:
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return None
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for i in range(self.bufferpos, len(self.buffer)):
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c = self.buffer[i]
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self.bufferpos += 1
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if c == self.MSGBEGIN:
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self.cmdpos = 0
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self.parampos = 0
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self.reading_cmd = True
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self.reading_param = False
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elif c == self.MSGEND:
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if not self.reading_cmd:
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continue
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self.reading_cmd = False
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self.reading_param = False
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cmd = self.cmd[0:self.cmdpos]
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param = self.param[0:self.parampos]
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self.reading_cmd = False
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self.reading_param = False
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parsed.append((cmd, param))
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ncmds -= 1
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if ncmds == 0:
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break
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elif c == self.MSGSEP:
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if self.reading_cmd:
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self.reading_param = True
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else:
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if self.reading_param:
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self.param[self.parampos] = c
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self.parampos += 1
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elif self.reading_cmd:
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self.cmd[self.cmdpos] = c
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self.cmdpos += 1
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# if we read the entire buffer and didn't finish the command,
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# throw it away
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self.buffer = None
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# check if we have time for another iteration
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elapsed = time.monotonic() - now
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remaining = max(0, remaining - elapsed)
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# timeout
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return parsed
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def control(args):
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if args.socket:
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address = '\0' + args.socket
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else:
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address = DEFAULT_SERVER_ADDRESS
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conn = Connection(address)
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msgparser = MsgParser(conn)
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version = None
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name = None
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mesa_version = None
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msgs = msgparser.readCmd(3)
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for m in msgs:
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cmd, param = m
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if cmd == VERSION_HEADER:
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version = int(param)
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elif cmd == DEVICE_NAME_HEADER:
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name = param.decode('utf-8')
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elif cmd == MESA_VERSION_HEADER:
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mesa_version = param.decode('utf-8')
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if version != 1 or name == None or mesa_version == None:
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print('ERROR: invalid protocol')
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sys.exit(1)
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if args.info:
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info = "Protocol Version: {}\n"
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info += "Device Name: {}\n"
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info += "Mesa Version: {}"
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print(info.format(version, name, mesa_version))
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if args.cmd == 'start-capture':
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conn.send(bytearray(':capture=1;', 'utf-8'))
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elif args.cmd == 'stop-capture':
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conn.send(bytearray(':capture=0;', 'utf-8'))
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description='MESA_overlay control client')
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parser.add_argument('--info', action='store_true', help='Print info from socket')
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parser.add_argument('--socket', '-s', type=str, help='Path to socket')
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commands = parser.add_subparsers(help='commands to run', dest='cmd')
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commands.add_parser('start-capture')
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commands.add_parser('stop-capture')
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args = parser.parse_args()
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control(args)
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