mirror of
https://github.com/ceph/ceph
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57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
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/*
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* Ceph - scalable distributed file system
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*
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* Copyright (C) 2004-2006 Sage Weil <sage@newdream.net>
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*
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* This is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software
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* Foundation. See file COPYING.
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*
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*/
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#ifndef __MPIMESSENGER_H
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#define __MPIMESSENGER_H
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#include "Messenger.h"
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#include "Dispatcher.h"
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#define NUMMDS g_conf.num_mds
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#define NUMOSD g_conf.num_osd
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#define MPI_DEST_TO_RANK(dest,world) ((dest)<(NUMMDS+NUMOSD) ? \
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(dest) : \
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((NUMMDS+NUMOSD)+(((dest)-NUMMDS-NUMOSD) % ((world)-NUMMDS-NUMOSD))))
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class Timer;
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class MPIMessenger : public Messenger {
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protected:
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entity_name_t myaddr; // my address
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//class Logger *logger; // for logging
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public:
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MPIMessenger(entity_name_t myaddr);
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~MPIMessenger();
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// init, shutdown MPI and associated event loop thread.
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virtual int shutdown();
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// message interface
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virtual int send_message(Message *m, entity_name_t dest, int port=0, int fromport=0);
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};
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/**
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* these are all ONE per process.
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*/
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extern int mpimessenger_world(); // get world size
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extern int mpimessenger_init(int& argc, char**& argv); // init mpi
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extern int mpimessenger_start(); // start thread
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extern void mpimessenger_stop(); // stop thread.
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extern void mpimessenger_wait(); // wait for thread to finish.
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extern int mpimessenger_shutdown(); // finalize MPI
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#endif
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