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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

# User Rev Content
1 chuckv 1490 /*******************************************************************\
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