MPQC 2.3.1
memiter.h
1//
2// memiter.h
3//
4// derived from memasmg.cc
5// Copyright (C) 1996 Limit Point Systems, Inc.
6//
7// Author: Curtis Janssen <cljanss@limitpt.com>
8// Maintainer: LPS
9//
10// This file is part of the SC Toolkit.
11//
12// The SC Toolkit is free software; you can redistribute it and/or modify
13// it under the terms of the GNU Library General Public License as published by
14// the Free Software Foundation; either version 2, or (at your option)
15// any later version.
16//
17// The SC Toolkit is distributed in the hope that it will be useful,
18// but WITHOUT ANY WARRANTY; without even the implied warranty of
19// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20// GNU Library General Public License for more details.
21//
22// You should have received a copy of the GNU Library General Public License
23// along with the SC Toolkit; see the file COPYING.LIB. If not, write to
24// the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
25//
26// The U.S. Government is granted a limited license as per AL 91-7.
27//
28
29#ifdef __GNUC__
30#pragma interface
31#endif
32
33#ifndef _util_group_memiter_h
34#define _util_group_memiter_h
35
36#include <util/group/memory.h>
37
38namespace sc {
39
41 private:
42 distsize_t *offsets_;
43 int n_;
44
45 void *data_;
46
47 char *current_data_;
48 int current_size_;
49 int current_offset_;
50 int node_;
51
52 int ready_;
53
54 distsize_t offset_;
55 int size_;
56 public:
57 MemoryIter(void *data, distsize_t *offsets, int n);
58
59 // iteration control
60 void begin(distsize_t offset, int size);
61 int ready() { return ready_; }
62 void next();
63
64 // info about the current piece of data
65 void *data() { return (void*) current_data_; }
66 int node() { return node_; }
67 int offset() { return current_offset_; }
68 int size() { return current_size_; }
69
70 // returns true if all data is local to node
71 int local(distsize_t offset, int size, int node);
72};
73
74}
75
76#endif
77
78// Local Variables:
79// mode: c++
80// c-file-style: "CLJ"
81// End:
Definition memiter.h:40
Definition memory.h:44

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