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root/OpenMD/branches/development/src/debug/Process.h
Revision: 1490
Committed: Fri Aug 13 15:02:28 2010 UTC (14 years, 8 months ago) by chuckv
Content type: text/plain
File size: 2720 byte(s)
Log Message:
Adding some error reporting and debuging code to OpenMD. This code is borrowed from ProtoMol.

File Contents

# Content
1 /*******************************************************************\
2
3 Copyright (C) 2004 Joseph Coffland
4
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License
7 as published by the Free Software Foundation; either version 2
8 of the License, or (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
18 02111-1307, USA.
19
20 For information regarding this software email
21 jcofflan@users.sourceforge.net
22
23 \*******************************************************************/
24 #ifndef PROCESS_H
25 #define PROCESS_H
26
27 #include <iostream>
28 #include <string>
29 #include <vector>
30 #include <list>
31
32 #include <protomol/debug/Pipe.h>
33
34 namespace ProtoMol {
35
36 class ProcessFunctor {
37 public:
38 virtual ~ProcessFunctor() {}
39 virtual void child() = 0;
40 virtual void parent() = 0;
41 };
42
43 class PipeProcessFunctor : public ProcessFunctor {
44 Pipe pipe;
45 int direction;
46 int fd;
47 public:
48
49 PipeProcessFunctor(int direction, int fd) : direction(direction), fd(fd) {}
50 virtual ~PipeProcessFunctor() {}
51
52 virtual void child();
53 virtual void parent();
54
55 Pipe *getPipe() {return &pipe;}
56 };
57
58 class FDReplaceProcessFunctor : public ProcessFunctor {
59 int fd;
60 int replacement;
61
62 public:
63 FDReplaceProcessFunctor(int fd, int replacement) :
64 fd(fd), replacement(replacement) {}
65 virtual ~FDReplaceProcessFunctor() {}
66
67 virtual void child();
68 virtual void parent() {}
69 };
70
71 class Process {
72 typedef std::vector<ProcessFunctor *> functors_t;
73 functors_t functors;
74
75 int pid;
76 bool running;
77 int returnCode;
78
79 public:
80 Process();
81 ~Process();
82
83 typedef enum {TO_CHILD, FROM_CHILD} dir_t;
84
85 void exec(std::list<std::string> &args);
86 void exec(const char *args);
87 void exec(char *args);
88 void exec(char *argv[]);
89
90 static void parseArgs(char *args, int &argc, char *argv[], int n);
91
92 Pipe *getChildPipe(dir_t dir, int childFD = -1);
93 void replaceChildFD(int fd, int replacement);
94
95 int getPID() {return pid;}
96 void kill(int sig);
97 int wait(int options = 0);
98
99 bool isRunning();
100 int getReturnCode() {return returnCode;}
101 };
102 }
103 #endif // PROCESS_H