SystemCall.h
1 //-*-C++-*-
2 /***************************************************************************
3  *
4  * Copyright (C) 2012 - 2023 by Willem van Straten
5  * Licensed under the Academic Free License version 2.1
6  *
7  ***************************************************************************/
8 
9 /* Util/genutil/SystemCall.h */
10 
11 #ifndef __Util_genutil_SystemCall_h
12 #define __Util_genutil_SystemCall_h
13 
14 #include <string>
15 
17 class SystemCall
18 {
19  unsigned retries {3};
20  bool throw_exception {true};
21  int return_value {0};
22 
23  public:
24 
26  void set_retries (unsigned n) { retries = n; }
27 
29  void set_throw (bool flag) { throw_exception = flag; }
30 
32  int get_return_value () const { return return_value; }
33 
35 
36  void run (const std::string&);
37 
38 };
39 
40 #endif // !defined(__Util_genutil_SystemCall_h)
41 
SystemCall::set_throw
void set_throw(bool flag)
Throw an exception if the command returns a non-zero exit status.
Definition: SystemCall.h:34
SystemCall
Executes a system call with multiple retries.
Definition: SystemCall.h:17
SystemCall::run
void run(const std::string &)
Run the given command.
Definition: SystemCall.C:19
Error
A convenient exception handling class.
Definition: Error.h:54
SystemCall::set_retries
void set_retries(unsigned n)
Set the number of retries.
Definition: SystemCall.h:31
SystemCall::get_return_value
int get_return_value() const
Get the return value (exit status) of the last executed command.
Definition: SystemCall.h:37
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