Source: SystemCmd.h

// -*- C++ -*-
// Maintainer: fehr@suse.de

#ifndef _SystemCmd_h
#define _SystemCmd_h


#include 
#include 
#include 

using std::vector;
using std::ifstream;

#define DBG(x) 

#define IDX_STDOUT 0
#define IDX_STDERR 1

enum  SpecialTreatment
    {
    ST_NONE,
    ST_NO_ABORT
    };

class SystemCmd
    {
    public:
	SystemCmd( const char* Command_Cv,
	           bool UseTmp_bv=false, SpecialTreatment=ST_NONE );
	SystemCmd( bool UseTmp_bv=false, SpecialTreatment=ST_NONE );
	virtual ~SystemCmd();
	int Execute( string Command_Cv );
	int ExecuteBackground( string Command_Cv );
	void SetOutputHandler( void (*Handle_f)( void *, string, bool ),
	                       void * Par_p );
	int Select( string Reg_Cv, bool Invert_bv=false,
	            unsigned Idx_ii=IDX_STDOUT );
	const string* GetString( unsigned Idx_ii=IDX_STDOUT );
	const string* GetLine( unsigned Num_iv, bool Selected_bv=false,
				    unsigned Idx_ii=IDX_STDOUT );
	int NumLines( bool Selected_bv=false, unsigned Idx_ii=IDX_STDOUT );
	void SetCombine( const bool Combine_b=true );
	void AppendTo( string File_Cv, unsigned Idx_ii=IDX_STDOUT );
	int Retcode( ) { return Ret_i; };
	string GetFilename( unsigned Idx_ii=IDX_STDOUT );

	int GetStdout( vector &Ret_Cr, const bool Append_bv = false )
	    { return PlaceOutput( IDX_STDOUT, Ret_Cr, Append_bv); }
	int GetStderr( vector &Ret_Cr, const bool Append_bv = false )
	    { return PlaceOutput( IDX_STDERR, Ret_Cr, Append_bv); }

    protected:

        int  PlaceOutput( unsigned Which_iv, vector &Ret_Cr, const bool Append_bv );

	void Invalidate();
	void InitFile();
	void OpenFiles();
	int DoExecute( string Cmd_Cv );
	bool DoWait( bool Hang_bv, int& Ret_ir );
        void InitCmd( string CmdIn_rv, string& CmdRedir_Cr );
        void CheckOutput();
	void GetUntilEOF( ifstream& File_Cr, vector& Lines_Cr,
	                  bool& NewLineSeen_br, bool Stderr_bv );
	void ExtractNewline( char* Buf_ti, int Cnt_ii, bool& NewLineSeen_br,
	                     string& Text_Cr, vector& Lines_Cr );
	void AddLine( string Text_Cv, vector& Lines_Cr );

	string FileName_aC[2];
	string Text_aC[2];
	bool Valid_ab[2];
	ifstream File_aC[2];
	vector Lines_aC[2];
	vector SelLines_aC[2];
	bool Append_ab[2];
	bool NewLineSeen_ab[2];
	bool Combine_b;
	bool UseTmp_b;
	bool Background_b;
	int Ret_i;
	int Pid_i;
	SpecialTreatment Spec_e;
	void (* OutputHandler_f)( void*, string, bool );
	void *HandlerPar_p;
	static int Nr_i;
    };

#endif