#ifndef _EXECMD_H_INCLUDED_
#define _EXECMD_H_INCLUDED_
/* @(#$Id: execmd.h,v 1.4 2005-11-18 15:19:14 dockes Exp $ (C) 2004 J.F.Dockes */
#include <string>
#include <list>
/**
Execute command possibly taking both input and output (will do
asynchronous io as appropriate for things to work).
*/
class ExecCmd {
public:
/**
* Execute command. Both input and output can be specified, and
* asynchronous io is used to prevent blocking. This wont work if
* input and output need to be synchronized (ie: Q/A), but ok for
* filtering.
* @param cmd the program to execute. This must be an absolute file name
* or exist in the PATH.
* @param args the argument list (NOT including argv[0]).
* @param input Input to send to the command.
* @param output Output from the command.
* @return the exec ouput status (0 if ok).
*/
int doexec(const std::string &cmd, const std::list<std::string>& args,
const std::string *input = 0,
std::string *output = 0);
/**
* Add/replace environment variable before executing command. This should
* be called before doexec of course (possibly multiple times for several
* variables).
* @param envassign an environment assignment string (name=value)
*/
void putenv(const std::string &envassign);
private:
std::list<std::string> env;
};
#endif /* _EXECMD_H_INCLUDED_ */