memiter.h
//
// memiter.h
//
// derived from memasmg.cc
// Copyright (C) 1996 Limit Point Systems, Inc.
//
// Author: Curtis Janssen <cljanss@limitpt.com>
// Maintainer: LPS
//
// This file is part of the SC Toolkit.
//
// The SC Toolkit is free software; you can redistribute it and/or modify
// it under the terms of the GNU Library General Public License as published by
// the Free Software Foundation; either version 2, or (at your option)
// any later version.
//
// The SC Toolkit is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public License
// along with the SC Toolkit; see the file COPYING.LIB. If not, write to
// the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
//
// The U.S. Government is granted a limited license as per AL 91-7.
//
#ifdef __GNUC__
#pragma interface
#endif
#ifndef _util_group_memiter_h
#define _util_group_memiter_h
#include <util/group/memory.h>
namespace sc {
class MemoryIter {
private:
distsize_t *offsets_;
int n_;
void *data_;
char *current_data_;
int current_size_;
int current_offset_;
int node_;
int ready_;
distsize_t offset_;
int size_;
public:
MemoryIter(void *data, distsize_t *offsets, int n);
// iteration control
void begin(distsize_t offset, int size);
int ready() { return ready_; }
void next();
// info about the current piece of data
void *data() { return (void*) current_data_; }
int node() { return node_; }
int offset() { return current_offset_; }
int size() { return current_size_; }
// returns true if all data is local to node
int local(distsize_t offset, int size, int node);
};
}
#endif
// Local Variables:
// mode: c++
// c-file-style: "CLJ"
// End: