Synnefo

# -*- coding: utf-8 -

#

# Copyright 2013 GRNET S.A. All rights reserved.

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ARCHIPELAGO_CONF_FILE = '/etc/archipelago/archipelago.conf'

ARCHIPELAGO_SEGMENT_TYPE = 'segdev'

ARCHIPELAGO_SEGMENT_NAME = 'xsegbd'

CONFIG = {}

execfile(ARCHIPELAGO_CONF_FILE, CONFIG)

ARCHIPELAGO_SEGMENT_PORTS = CONFIG['SEGMENT_PORTS']

ARCHIPELAGO_SEGMENT_SIZE = CONFIG['SEGMENT_SIZE']

ARCHIPELAGO_SEGMENT_ALIGNMENT = 12

class WorkerGlue(object):

    pmap = {}

    worker_id = None

    ioctx_pool = None

    #glue_select = None

    @classmethod

    def setmap(cls, pid, index):

        WorkerGlue.pmap[pid] = index

        WorkerGlue.worker_id = index

    @classmethod

    def setupXsegPool(cls, ObjectPool, Segment, Xseg_ctx, pool_size=8):

        worker_id = WorkerGlue.worker_id

        class XsegPool(ObjectPool):

            def __init__(self):

                super(XsegPool, self).__init__(size=pool_size)

                self.segment = Segment(ARCHIPELAGO_SEGMENT_TYPE,

                                       ARCHIPELAGO_SEGMENT_NAME,

                                       ARCHIPELAGO_SEGMENT_PORTS,

                                       ARCHIPELAGO_SEGMENT_SIZE,

                                       ARCHIPELAGO_SEGMENT_ALIGNMENT)

                self.worker_id = worker_id

                self.cnt = 1

            def _pool_create(self):

                if self.worker_id == 1:

                    ioctx = Xseg_ctx(self.segment, self.worker_id + self.cnt)

                    self.cnt += 1

                    return ioctx

                else:

                    ioctx = Xseg_ctx(self.segment,

                                     (self.worker_id - 1) * pool_size + 2 +

                                     self.cnt)

                    self.cnt += 1

                    return ioctx

            def _pool_verify(self, poolobj):

                return True

            def _pool_cleanup(self, poolobj):

                return False

        WorkerGlue.ioctx_pool = XsegPool()