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Python

# FILE: autoload/conque_term/conque_sole_communicator.py
# AUTHOR: Nico Raffo <nicoraffo@gmail.com>
# WEBSITE: http://conque.googlecode.com
# MODIFIED: 2011-08-12
# VERSION: 2.2, for Vim 7.0
# LICENSE:
# Conque - Vim terminal/console emulator
# Copyright (C) 2009-__YEAR__ Nico Raffo
#
# MIT License
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
"""
ConqueSoleCommunicator
This script will create a new Windows console and start the requested program
inside of it. This process is launched independently from the parent Vim
program, so it has no access to the vim module.
The main loop in this script reads data from the console and syncs it onto
blocks of memory shared with the Vim process. In this way the Vim process
and this script can communicate with each other.
"""
import time
import sys
from conque_globals import *
from conque_win32_util import *
from conque_sole_subprocess import *
from conque_sole_shared_memory import *
##############################################################
# only run if this file was run directly
if __name__ == '__main__':
# attempt to catch ALL exceptions to fend of zombies
try:
# simple arg validation
if len(sys.argv) < 5:
exit()
# maximum time this thing reads. 0 means no limit. Only for testing.
max_loops = 0
# read interval, in seconds
sleep_time = 0.01
# idle read interval, in seconds
idle_sleep_time = 0.10
# are we idled?
is_idle = False
# mem key
mem_key = sys.argv[1]
# console width
console_width = int(sys.argv[2])
# console height
console_height = int(sys.argv[3])
# code page
code_page = int(sys.argv[4])
# code page
fast_mode = int(sys.argv[5])
# the actual subprocess to run
cmd_line = " ".join(sys.argv[6:])
# width and height
options = {'LINES': console_height, 'COLUMNS': console_width, 'CODE_PAGE': code_page, 'FAST_MODE': fast_mode}
# set initial idle status
shm_command = ConqueSoleSharedMemory(CONQUE_SOLE_COMMANDS_SIZE, 'command', mem_key, serialize=True)
shm_command.create('write')
cmd = shm_command.read()
if cmd:
if cmd['cmd'] == 'idle':
is_idle = True
shm_command.clear()
##############################################################
# Create the subprocess
proc = ConqueSoleSubprocess()
res = proc.open(cmd_line, mem_key, options)
if not res:
exit()
##############################################################
# main loop!
loops = 0
while True:
# check for idle/resume
if is_idle or loops % 25 == 0:
# check process health
if not proc.is_alive():
proc.close()
break
# check for change in buffer focus
cmd = shm_command.read()
if cmd:
if cmd['cmd'] == 'idle':
is_idle = True
shm_command.clear()
elif cmd['cmd'] == 'resume':
is_idle = False
shm_command.clear()
# sleep between loops if moderation is requested
if sleep_time > 0:
if is_idle:
time.sleep(idle_sleep_time)
else:
time.sleep(sleep_time)
# write, read, etc
proc.write()
proc.read()
# increment loops, and exit if max has been reached
loops += 1
if max_loops and loops >= max_loops:
break
##############################################################
# all done!
proc.close()
# if an exception was thrown, croak
except:
proc.close()
# vim:foldmethod=marker