zypp::env::ScopedSet Class Reference

Temporarily set/unset an environment variable. More...

#include <Env.h>

Public Member Functions
	ScopedSet (const ScopedSet &)=delete
ScopedSet &	operator= (const ScopedSet &)=delete
	ScopedSet (ScopedSet &&)=default
ScopedSet &	operator= (ScopedSet &&)=default
	ScopedSet ()
	Default ctor (NOOP).
	ScopedSet (std::string var_r, const char *val_r)
	Set var_r to val_r (unsets var_r if val_r is a nullptr).

Public Attributes
std::unique_ptr< std::string >	_val

Detailed Description

Temporarily set/unset an environment variable.

Definition at line 28 of file Env.h.

Constructor & Destructor Documentation

zypp::env::ScopedSet::ScopedSet ( const ScopedSet &  )

delete

zypp::env::ScopedSet::ScopedSet ( ScopedSet &&  )

default

zypp::env::ScopedSet::ScopedSet ( )

inline

Default ctor (NOOP).

Definition at line 38 of file Env.h.

zypp::env::ScopedSet::ScopedSet ( std::string  var_r, const char *  val_r  )

inline

Set var_r to val_r (unsets var_r if val_r is a nullptr).

Definition at line 42 of file Env.h.

Member Function Documentation

ScopedSet& zypp::env::ScopedSet::operator= ( const ScopedSet &  )

delete

ScopedSet& zypp::env::ScopedSet::operator= ( ScopedSet &&  )

default

Member Data Documentation

std::unique_ptr<std::string> zypp::env::ScopedSet::_val

Initial value:

{
        if ( !_var.empty() )
        {
          if ( const char * orig = ::getenv( _var.c_str() ) )
            _val.reset( new std::string( orig ) );
          setval( val_r );
        }
      }

      
      ~ScopedSet()
      {
        if ( !_var.empty() )
          setval( _val ? _val->c_str() : nullptr );
      }

    private:
      void setval( const char * val_r )
      {
        if ( val_r )
          ::setenv( _var.c_str(), val_r, 1 );
        else
          ::unsetenv( _var.c_str() );
      }

    private:
      std::string _var

Definition at line 44 of file Env.h.

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The documentation for this class was generated from the following file:

• zypp/base/Env.h