view tests/killdaemons.py @ 20441:eca9d5375606

push: move phases synchronisation function in its own function

Now that every necessary information is held in the `pushoperation` object, we
can finally extract the phase synchronisation phase to it's own function. This
is the first concrete block of code we extract from the huge push function.
Hooray!

This changeset is pure code movement only.

#!/usr/bin/env python

import os, sys, time, errno, signal

if os.name =='nt':
    import ctypes
    def kill(pid, logfn, tryhard=True):
        logfn('# Killing daemon process %d' % pid)
        PROCESS_TERMINATE = 1
        handle = ctypes.windll.kernel32.OpenProcess(
                PROCESS_TERMINATE, False, pid)
        ctypes.windll.kernel32.TerminateProcess(handle, -1)
        ctypes.windll.kernel32.CloseHandle(handle)
else:
    def kill(pid, logfn, tryhard=True):
        try:
            os.kill(pid, 0)
            logfn('# Killing daemon process %d' % pid)
            os.kill(pid, signal.SIGTERM)
            if tryhard:
                for i in range(10):
                    time.sleep(0.05)
                    os.kill(pid, 0)
            else:
                time.sleep(0.1)
                os.kill(pid, 0)
            logfn('# Daemon process %d is stuck - really killing it' % pid)
            os.kill(pid, signal.SIGKILL)
        except OSError, err:
            if err.errno != errno.ESRCH:
                raise

def killdaemons(pidfile, tryhard=True, remove=False, logfn=None):
    if not logfn:
        logfn = lambda s: s
    # Kill off any leftover daemon processes
    try:
        fp = open(pidfile)
        for line in fp:
            try:
                pid = int(line)
            except ValueError:
                continue
            kill(pid, logfn, tryhard)
        fp.close()
        if remove:
            os.unlink(pidfile)
    except IOError:
        pass

if __name__ == '__main__':
    path, = sys.argv[1:]
    killdaemons(path)