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avoid polling and time delay when waiting for current job to stop

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adam j hartz 2015-03-29 10:03:39 -04:00
parent e8aadbb298
commit de7665b696
1 changed files with 9 additions and 16 deletions
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9
xonsh/jobs.py
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@ -103,22 +103,15 @@ def wait_for_active_job():
obj.done = False
_give_terminal_to(pgrp) # give the terminal over to the fg process
while True:
p, s = os.waitpid(obj.pid, os.WNOHANG | os.WUNTRACED)
if p == obj.pid:
p, s = os.waitpid(obj.pid, os.WUNTRACED)
if os.WIFSTOPPED(s):
obj.done = True
job['bg'] = True
job['status'] = 'stopped'
print() # get a newline because ^Z will have been printed
print_one_job(act)
break
elif os.WIFSIGNALED(s):
print() # get a newline because ^C will have been printed
break
elif os.WIFEXITED(s):
break
time.sleep(0.1)
if obj.poll() is not None:
builtins.__xonsh_active_job__ = None
_give_terminal_to(_shell_pgrp) # give terminal back to the shell