author | Edouard Tisserant |
Fri, 08 Jun 2018 13:28:00 +0200 | |
changeset 2020 | 6dddf3070806 |
parent 1919 | ccea0fa6ea91 |
child 2671 | 30493ff3a23a |
permissions | -rw-r--r-- |
79 | 1 |
#!/usr/bin/env python |
2 |
# -*- coding: utf-8 -*- |
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3 |
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# This file is part of Beremiz, a Integrated Development Environment for |
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# programming IEC 61131-3 automates supporting plcopen standard and CanFestival. |
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# |
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# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD |
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8 |
# |
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# See COPYING file for copyrights details. |
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10 |
# |
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# This program is free software; you can redistribute it and/or |
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# modify it under the terms of the GNU General Public License |
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13 |
# as published by the Free Software Foundation; either version 2 |
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# of the License, or (at your option) any later version. |
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15 |
# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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20 |
# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
79 | 24 |
|
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from __future__ import absolute_import |
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import os |
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import sys |
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import subprocess |
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import ctypes |
704 | 31 |
from threading import Timer, Lock, Thread, Semaphore |
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import signal |
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class outputThread(Thread): |
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""" |
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Thread is used to print the output of a command to the stdout |
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""" |
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def __init__(self, Proc, fd, callback=None, endcallback=None): |
704 | 40 |
Thread.__init__(self) |
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self.killed = False |
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self.finished = False |
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self.retval = None |
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self.Proc = Proc |
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self.callback = callback |
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self.endcallback = endcallback |
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self.fd = fd |
79 | 48 |
|
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def run(self): |
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outchunk = None |
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self.retval = None |
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while self.retval is None and not self.killed: |
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if self.endcallback: |
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self.retval = self.Proc.poll() |
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else: |
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self.retval = self.Proc.returncode |
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|
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outchunk = self.fd.readline() |
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if self.callback: |
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self.callback(outchunk) |
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while outchunk != '' and not self.killed: |
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outchunk = self.fd.readline() |
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if self.callback: |
08e4394ff4fb
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self.callback(outchunk) |
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if self.endcallback: |
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try: |
232 | 67 |
err = self.Proc.wait() |
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except Exception: |
149 | 69 |
err = self.retval |
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self.finished = True |
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self.endcallback(self.Proc.pid, err) |
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|
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73 |
|
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class ProcessLogger(object): |
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def __init__(self, logger, Command, finish_callback=None, |
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no_stdout=False, no_stderr=False, no_gui=True, |
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timeout=None, outlimit=None, errlimit=None, |
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endlog=None, keyword=None, kill_it=False, cwd=None, |
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encoding=None, output_encoding=None): |
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80 |
self.logger = logger |
424 | 81 |
if not isinstance(Command, list): |
82 |
self.Command_str = Command |
|
83 |
self.Command = [] |
|
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for i, word in enumerate(Command.replace("'", '"').split('"')): |
424 | 85 |
if i % 2 == 0: |
86 |
word = word.strip() |
|
87 |
if len(word) > 0: |
|
88 |
self.Command.extend(word.split()) |
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else: |
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self.Command.append(word) |
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else: |
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self.Command = Command |
|
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self.Command_str = subprocess.list2cmdline(self.Command) |
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94 |
|
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95 |
fsencoding = sys.getfilesystemencoding() |
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self.output_encoding = output_encoding |
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97 |
|
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98 |
if encoding is None: |
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99 |
encoding = fsencoding |
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100 |
self.Command = [self.Command[0].encode(fsencoding)]+map( |
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101 |
lambda x: x.encode(encoding), self.Command[1:]) |
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Edouard Tisserant
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102 |
|
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103 |
self.finish_callback = finish_callback |
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104 |
self.no_stdout = no_stdout |
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105 |
self.no_stderr = no_stderr |
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106 |
self.startupinfo = None |
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107 |
self.errlen = 0 |
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108 |
self.outlen = 0 |
704 | 109 |
self.errlimit = errlimit |
110 |
self.outlimit = outlimit |
|
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111 |
self.exitcode = None |
704 | 112 |
self.outdata = [] |
113 |
self.errdata = [] |
|
114 |
self.keyword = keyword |
|
115 |
self.kill_it = kill_it |
|
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|
116 |
self.startsem = Semaphore(0) |
704 | 117 |
self.finishsem = Semaphore(0) |
118 |
self.endlock = Lock() |
|
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119 |
|
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120 |
popenargs = { |
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121 |
"cwd": os.getcwd() if cwd is None else cwd, |
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122 |
"stdin": subprocess.PIPE, |
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|
123 |
"stdout": subprocess.PIPE, |
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124 |
"stderr": subprocess.PIPE |
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125 |
} |
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|
126 |
|
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Another set of meaningless changes to satisfy PEP8 and PyLint.
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|
127 |
if no_gui and os.name in ("nt", "ce"): |
111
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|
128 |
self.startupinfo = subprocess.STARTUPINFO() |
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|
129 |
self.startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW |
128
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130 |
popenargs["startupinfo"] = self.startupinfo |
1919
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Another set of meaningless changes to satisfy PEP8 and PyLint.
Edouard Tisserant
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elif os.name == 'posix': |
704 | 132 |
popenargs["shell"] = False |
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133 |
|
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134 |
if timeout: |
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135 |
self.timeout = Timer(timeout, self.endlog) |
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136 |
self.timeout.start() |
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137 |
else: |
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138 |
self.timeout = None |
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139 |
|
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140 |
self.Proc = subprocess.Popen(self.Command, **popenargs) |
112 | 141 |
|
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142 |
self.outt = outputThread( |
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143 |
self.Proc, |
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144 |
self.Proc.stdout, |
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145 |
self.output, |
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146 |
self.finish) |
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147 |
self.outt.start() |
79 | 148 |
|
112 | 149 |
self.errt = outputThread( |
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150 |
self.Proc, |
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151 |
self.Proc.stderr, |
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|
152 |
self.errors) |
232 | 153 |
self.errt.start() |
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154 |
self.startsem.release() |
79 | 155 |
|
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|
156 |
def output(self, v): |
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157 |
if v and self.output_encoding: |
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158 |
v = v.decode(self.output_encoding) |
704 | 159 |
self.outdata.append(v) |
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160 |
self.outlen += 1 |
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|
161 |
if not self.no_stdout: |
686
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|
162 |
self.logger.write(v) |
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|
163 |
if (self.keyword and v.find(self.keyword) != -1) or (self.outlimit and self.outlen > self.outlimit): |
704 | 164 |
self.endlog() |
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165 |
|
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|
166 |
def errors(self, v): |
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167 |
if v and self.output_encoding: |
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|
168 |
v = v.decode(self.output_encoding) |
704 | 169 |
self.errdata.append(v) |
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170 |
self.errlen += 1 |
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|
171 |
if not self.no_stderr: |
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|
172 |
self.logger.write_warning(v) |
704 | 173 |
if self.errlimit and self.errlen > self.errlimit: |
174 |
self.endlog() |
|
79 | 175 |
|
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|
176 |
def log_the_end(self, ecode, pid): |
232 | 177 |
self.logger.write(self.Command_str + "\n") |
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|
178 |
self.logger.write_warning(_("exited with status {a1} (pid {a2})\n").format(a1=str(ecode), a2=str(pid))) |
232 | 179 |
|
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|
180 |
def finish(self, pid, ecode): |
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181 |
# avoid running function before start is finished |
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|
182 |
self.startsem.acquire() |
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|
183 |
self.startsem.release() |
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|
184 |
if self.timeout: |
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|
185 |
self.timeout.cancel() |
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|
186 |
self.exitcode = ecode |
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|
187 |
if self.exitcode != 0: |
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|
188 |
self.log_the_end(ecode, pid) |
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|
189 |
if self.finish_callback is not None: |
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|
190 |
self.finish_callback(self, ecode, pid) |
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|
191 |
self.errt.join() |
704 | 192 |
self.finishsem.release() |
79 | 193 |
|
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|
194 |
def kill(self, gently=True): |
1539
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fix syncronization issue during killing ProcessLoggers on IDE close
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|
195 |
# avoid running kill before start is finished |
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196 |
self.startsem.acquire() |
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|
197 |
self.startsem.release() |
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|
198 |
|
110
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|
199 |
self.outt.killed = True |
112 | 200 |
self.errt.killed = True |
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Another set of meaningless changes to satisfy PEP8 and PyLint.
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|
201 |
if os.name in ("nt", "ce"): |
110
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|
202 |
PROCESS_TERMINATE = 1 |
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|
203 |
handle = ctypes.windll.kernel32.OpenProcess(PROCESS_TERMINATE, False, self.Proc.pid) |
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|
204 |
ctypes.windll.kernel32.TerminateProcess(handle, -1) |
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|
205 |
ctypes.windll.kernel32.CloseHandle(handle) |
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|
206 |
else: |
235 | 207 |
if gently: |
1919
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Another set of meaningless changes to satisfy PEP8 and PyLint.
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|
208 |
sig = signal.SIGTERM |
235 | 209 |
else: |
1919
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Another set of meaningless changes to satisfy PEP8 and PyLint.
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parents:
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|
210 |
sig = signal.SIGKILL |
154
f3134b2c6d92
Fixed killing app on Linux in wxPopen. Do not use shell anymore. Command line is splitted into args, taking care of double and simple cotes. To be tested on win32.
etisserant
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diff
changeset
|
211 |
try: |
235 | 212 |
os.kill(self.Proc.pid, sig) |
1780
c52d1460cea8
clean-up: fix PEP8 E722 do not use bare except'
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|
213 |
except Exception: |
154
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Fixed killing app on Linux in wxPopen. Do not use shell anymore. Command line is splitted into args, taking care of double and simple cotes. To be tested on win32.
etisserant
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|
214 |
pass |
232 | 215 |
self.outt.join() |
216 |
self.errt.join() |
|
79 | 217 |
|
704 | 218 |
def endlog(self): |
219 |
if self.endlock.acquire(False): |
|
220 |
if not self.outt.finished and self.kill_it: |
|
1757
0de89da92ee0
clean-up: fix PEP8 E111 indentation is not a multiple of four
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parents:
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changeset
|
221 |
self.kill() |
1516
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fix bug: Beremiz IDE hangs during launching Beremiz_service
andrey@new-nest
parents:
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changeset
|
222 |
self.finishsem.release() |
89 | 223 |
|
704 | 224 |
def spin(self): |
225 |
self.finishsem.acquire() |
|
226 |
return [self.exitcode, "".join(self.outdata), "".join(self.errdata)] |