tests/killdaemons.py
author Patrick Mezard <patrick@mezard.eu>
Sat, 15 Feb 2014 15:28:32 +0100
branchstable
changeset 1341 c559280de767
parent 1332 e307d04d3c4d
child 1359 e23422941bae
permissions -rw-r--r--
run-tests: fix heredoctest for out-of-tree extensions heredoctest.py directory must be in python path to use heredoctest (>>>) in out-of-tree extension tests like: $ cd ext/tests $ python /some/hg/install/tests/run-tests.py test-ext.t [ original upstream message ]
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#!/usr/bin/env python
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import os, sys, time, errno, signal
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if os.name =='nt':
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    import ctypes
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    def _check(ret, expectederr=None):
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        if ret == 0:
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            winerrno = ctypes.GetLastError()
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            if winerrno == expectederr:
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                return True
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            raise ctypes.WinError(winerrno)
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    def kill(pid, logfn, tryhard=True):
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        logfn('# Killing daemon process %d' % pid)
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        PROCESS_TERMINATE = 1
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        PROCESS_QUERY_INFORMATION = 0x400
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        SYNCHRONIZE = 0x00100000L
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        WAIT_OBJECT_0 = 0
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        WAIT_TIMEOUT = 258
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        handle = ctypes.windll.kernel32.OpenProcess(
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                PROCESS_TERMINATE|SYNCHRONIZE|PROCESS_QUERY_INFORMATION,
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                False, pid)
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        if handle == 0:
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            _check(0, 87) # err 87 when process not found
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            return # process not found, already finished
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        try:
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            r = ctypes.windll.kernel32.WaitForSingleObject(handle, 100)
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            if r == WAIT_OBJECT_0:
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                pass # terminated, but process handle still available
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            elif r == WAIT_TIMEOUT:
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                _check(ctypes.windll.kernel32.TerminateProcess(handle, -1))
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            else:
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                _check(r)
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            # TODO?: forcefully kill when timeout
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            #        and ?shorter waiting time? when tryhard==True
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            r = ctypes.windll.kernel32.WaitForSingleObject(handle, 100)
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                                                       # timeout = 100 ms
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            if r == WAIT_OBJECT_0:
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                pass # process is terminated
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            elif r == WAIT_TIMEOUT:
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                logfn('# Daemon process %d is stuck')
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            else:
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                check(r) # any error
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        except: #re-raises
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            ctypes.windll.kernel32.CloseHandle(handle) # no _check, keep error
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            raise
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        _check(ctypes.windll.kernel32.CloseHandle(handle))
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else:
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    def kill(pid, logfn, tryhard=True):
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        try:
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            os.kill(pid, 0)
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            logfn('# Killing daemon process %d' % pid)
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            os.kill(pid, signal.SIGTERM)
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            if tryhard:
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                for i in range(10):
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                    time.sleep(0.05)
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                    os.kill(pid, 0)
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            else:
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                time.sleep(0.1)
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                os.kill(pid, 0)
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            logfn('# Daemon process %d is stuck - really killing it' % pid)
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            os.kill(pid, signal.SIGKILL)
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        except OSError, err:
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            if err.errno != errno.ESRCH:
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                raise
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def killdaemons(pidfile, tryhard=True, remove=False, logfn=None):
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    if not logfn:
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        logfn = lambda s: s
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    # Kill off any leftover daemon processes
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    try:
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        fp = open(pidfile)
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        for line in fp:
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            try:
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                pid = int(line)
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            except ValueError:
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                continue
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            kill(pid, logfn, tryhard)
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        fp.close()
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        if remove:
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            os.unlink(pidfile)
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    except IOError:
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        pass
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if __name__ == '__main__':
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    path, = sys.argv[1:]
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    killdaemons(path)
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