FreeNOS
ShellCommand.h
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1 /*
2  * Copyright (C) 2009 Niek Linnenbank
3  *
4  * This program is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation, either version 3 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program. If not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #ifndef __SH_SHELLCOMMAND
19 #define __SH_SHELLCOMMAND
20 
21 #include <String.h>
22 #include <HashTable.h>
23 #include <Types.h>
24 
39 {
40  public:
41 
48  ShellCommand(const char *name, const Size minParams = 0);
49 
53  virtual ~ShellCommand();
54 
60  const char * getName() const;
61 
67  const char * getHelp() const;
68 
74  Size getMinimumParams() const;
75 
83  virtual int execute(const Size nparams, const char **params) = 0;
84 
85  protected:
86 
88  const char *m_name;
89 
91  const char *m_help;
92 
95 };
96 
102 #endif /* __SH_SHELLCOMMAND */
ShellCommand::getHelp
const char * getHelp() const
Get command help.
Definition: ShellCommand.cpp:36
Types.h
ShellCommand::ShellCommand
ShellCommand(const char *name, const Size minParams=0)
Constructor.
Definition: ShellCommand.cpp:20
ShellCommand
Builtin command for the Shell.
Definition: ShellCommand.h:38
HashTable.h
ShellCommand::m_help
const char * m_help
Command help text.
Definition: ShellCommand.h:91
ShellCommand::getName
const char * getName() const
Get command name.
Definition: ShellCommand.cpp:31
Size
unsigned int Size
Any sane size indicator cannot go negative.
Definition: Types.h:128
ShellCommand::~ShellCommand
virtual ~ShellCommand()
Destructor.
Definition: ShellCommand.cpp:27
ShellCommand::getMinimumParams
Size getMinimumParams() const
Get the minimum number of parameters required.
Definition: ShellCommand.cpp:41
ShellCommand::execute
virtual int execute(const Size nparams, const char **params)=0
Executes the command.
String.h
ShellCommand::m_minParams
const Size m_minParams
Minimum number of parameters required.
Definition: ShellCommand.h:94
ShellCommand::m_name
const char * m_name
Unique name of the command.
Definition: ShellCommand.h:88