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[Tools] Add support for subprocess execution timeout for when calling backend compilers #2021

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[Tools] Add support for subprocess execution timeout for when calling backend compilers #2021

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11 changes: 10 additions & 1 deletion tools/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@
import sys
import inspect
import os
from time import sleep
from os import listdir, remove, makedirs
from shutil import copyfile
from os.path import isdir, join, exists, split, relpath, splitext
Expand All @@ -33,10 +34,18 @@ def cmd(l, check=True, verbose=False, shell=False, cwd=None):
raise Exception('ERROR %d: "%s"' % (rc, text))


def run_cmd(command, wd=None, redirect=False):
def run_cmd(command, wd=None, redirect=False, timeout=15):
assert is_cmd_valid(command[0])
try:
p = Popen(command, stdout=PIPE, stderr=STDOUT if redirect else PIPE, cwd=wd)
if timeout:
wait = 0.0
while p.poll() is None:
wait += 0.01
if wait > timeout:
p.kill()
raise OSError(1, "Subprocess timed out after %0.2f seconds" % timeout)
sleep(0.01)
_stdout, _stderr = p.communicate()
except OSError as e:
print "[OS ERROR] Command: "+(' '.join(command))
Expand Down