Synnefo

# -*- coding: utf-8 -

#

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import ConfigParser

class WorkerGlue(object):

    pmap = {}

    worker_id = None

    ioctx_pool = None

    ArchipelagoConfFile = None

    @classmethod

    def setmap(cls, pid, index):

        WorkerGlue.pmap[pid] = index

        WorkerGlue.worker_id = index

    @classmethod

    def setupXsegPool(cls, ObjectPool, Segment, Xseg_ctx,

                      cfile='/etc/archipelago/archipelago.conf', pool_size=8):

        if WorkerGlue.ioctx_pool is not None:

            return

        bcfg = ConfigParser.ConfigParser()

        bcfg.readfp(open(cfile))

        worker_id = WorkerGlue.worker_id

        WorkerGlue.ArchipelagoConfFile = cfile

        archipelago_segment_type = 'segdev'

        archipelago_segment_name = 'xsegbd'

        archipelago_dynports = bcfg.getint('XSEG', 'SEGMENT_DYNPORTS')

        archipelago_ports = bcfg.getint('XSEG', 'SEGMENT_PORTS')

        archipelago_segment_size = bcfg.getint('XSEG', 'SEGMENT_SIZE')

        archipelago_segment_alignment = 12

        class XsegPool(ObjectPool):

            def __init__(self):

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

                self.segment = Segment(archipelago_segment_type,

                                       archipelago_segment_name,

                                       archipelago_dynports,

                                       archipelago_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

                elif self.worker_id > 1:

                    ioctx = Xseg_ctx(self.segment,

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

                                     self.cnt)

                    self.cnt += 1

                    return ioctx

                elif self.worker_id is None:

                    ioctx = Xseg_ctx(self.segment)

                    return ioctx

            def _pool_verify(self, poolobj):

                return True

            def _pool_cleanup(self, poolobj):

                return False

        WorkerGlue.ioctx_pool = XsegPool()