MPQC 2.3.1

- Main Page
- Related Pages
- Classes
- Files

- File List

exenv.h
1 //
2 // exenv.h
3 //
4 // Copyright (C) 1997 Limit Point Systems, Inc.
5 //
6 // Author: Curtis Janssen <cljanss@limitpt.com>
7 // Maintainer: LPS
8 //
9 // This file is part of the SC Toolkit.
10 //
11 // The SC Toolkit is free software; you can redistribute it and/or modify
12 // it under the terms of the GNU Library General Public License as published by
13 // the Free Software Foundation; either version 2, or (at your option)
14 // any later version.
15 //
16 // The SC Toolkit is distributed in the hope that it will be useful,
17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 // GNU Library General Public License for more details.
20 //
21 // You should have received a copy of the GNU Library General Public License
22 // along with the SC Toolkit; see the file COPYING.LIB. If not, write to
23 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 //
25 // The U.S. Government is granted a limited license as per AL 91-7.
26 //
27
28 #ifdef __GNUG__
29 #pragma interface
30 #endif
31
32 #ifndef _util_misc_exenv_h
33 #define _util_misc_exenv_h
34
35 #include <stdlib.h>
36
37 #include <scconfig.h>
38
39 #include <iostream>
40
41 #include <util/misc/formio.h>
42
43 namespace sc {
44
47 class ExEnv {
48 protected:
49 static int initialized_;
50 static int *argc_;
51 static char ***argv_;
52 static char hostname_[256];
53 static char username_[9];
54
55 static size_t mem_;
56 static int nproc_;
57
58 static std::ostream *out_;
59 static std::ostream *nullstream_;
60 public:
62 static void init(int &argcref, char **&argvref);
64 static int initialized() { return argc_ != 0; }
66 static int &argc() { return *argc_; }
68 static char **&argv() { return *argv_; }
70 static const char *program_name();
72 static const char *hostname() { return hostname_; }
74 static const char *username() { return username_; }
75
76 static void set_out(std::ostream *o) { SCFormIO::init_ostream(*o);out_=o; }
78 static std::ostream &outn() { if (!out_)set_out(&std::cout);return *out_; }
80 static std::ostream &errn() { return outn(); }
82 static std::ostream &out0();
84 static std::ostream &err0() { return out0(); }
85
87 static size_t memory() { return mem_; }
89 static int nproc() { return nproc_; }
90 };
91
92 }
93
94 #endif
95
96 // Local Variables:
97 // mode: c++
98 // c-file-style: "CLJ"
99 // End: