comparison mercurial/posix.py @ 29530:3239e2fdd2e2

chgserver: extract utility to bind unix domain socket to long path

This is common problem of using sockaddr_un.

29529:02de1dbd4f6e

                break

        return ''.join(chunks)
    finally:
        fcntl.fcntl(pipe, fcntl.F_SETFL, oldflags)

29530:3239e2fdd2e2

                break

        return ''.join(chunks)
    finally:
        fcntl.fcntl(pipe, fcntl.F_SETFL, oldflags)

def bindunixsocket(sock, path):
    """Bind the UNIX domain socket to the specified path"""
    # use relative path instead of full path at bind() if possible, since
    # AF_UNIX path has very small length limit (107 chars) on common
    # platforms (see sys/un.h)
    dirname, basename = os.path.split(path)
    bakwdfd = None
    if dirname:
        bakwdfd = os.open('.', os.O_DIRECTORY)
        os.chdir(dirname)
    sock.bind(basename)
    if bakwdfd:
        os.fchdir(bakwdfd)
        os.close(bakwdfd)