comparison mercurial/lock.py @ 30920:dc9f086c7691

lock: move lock._host calculation to a function

This allows customization per platform. See the next patch for why.

30919:e1fa5fe9f9d4

from . import (
    error,
    util,
)

class lock(object):
    '''An advisory lock held by one process to control access to a set
    of files.  Non-cooperating processes or incorrectly written scripts
    can ignore Mercurial's locking scheme and stomp all over the

    def _trylock(self):
        if self.held:
            self.held += 1
            return
        if lock._host is None:
            lock._host = socket.gethostname()
        lockname = '%s:%s' % (lock._host, self.pid)
        retry = 5
        while not self.held and retry:
            retry -= 1
            try:

30920:dc9f086c7691

from . import (
    error,
    util,
)

def _getlockprefix():
    """Return a string which is used to differentiate pid namespaces

    It's useful to detect "dead" processes and remove stale locks with
    confidence. Typically it's just hostname.
    """
    return socket.gethostname()

class lock(object):
    '''An advisory lock held by one process to control access to a set
    of files.  Non-cooperating processes or incorrectly written scripts
    can ignore Mercurial's locking scheme and stomp all over the

    def _trylock(self):
        if self.held:
            self.held += 1
            return
        if lock._host is None:
            lock._host = _getlockprefix()
        lockname = '%s:%s' % (lock._host, self.pid)
        retry = 5
        while not self.held and retry:
            retry -= 1
            try: