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// -*- C++ -*-
//=============================================================================
/**
* @file String_Manager_T.h
*
* @author Johnny Willemsen <jwillemsen@remedy.nl>
*/
//=============================================================================
#ifndef TAO_STRING_MANAGER_T
#define TAO_STRING_MANAGER_T
#include /**/ "ace/pre.h"
#include /**/ "tao/TAO_Export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/OS_NS_string.h"
#include "tao/Basic_Types.h"
#include "tao/String_Traits_Base_T.h"
#include <algorithm>
/****************************************************************/
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
namespace TAO
{
template <typename charT>
class String_Manager_T
{
public:
typedef charT character_type;
typedef TAO::details::string_traits_base <charT> s_traits;
/// Default CTOR will initialize the underlying ptr_ to empty string.
inline String_Manager_T (void) : ptr_ (s_traits::default_initializer())
{
}
/// Copy constructor
inline String_Manager_T (const String_Manager_T<charT> &rhs) :
ptr_ (s_traits::duplicate (rhs.ptr_))
{
}
/// Constructor from const char* makes a copy.
inline String_Manager_T (const character_type *s) :
ptr_ (s_traits::duplicate (s))
{
}
/// Destructor
inline ~String_Manager_T (void) {
s_traits::release (this->ptr_);
}
/// Assignment from another managed type
inline String_Manager_T &operator= (const String_Manager_T<charT> &rhs) {
// Strongly exception safe by means of copy and non-throwing swap
// technique.
String_Manager_T <character_type> tmp (rhs);
std::swap (this->ptr_, tmp.ptr_);
return *this;
}
/// Assignment from var type will make a copy
inline String_Manager_T &operator= (const typename s_traits::string_var& value) {
// Strongly exception safe by means of copy and non-throwing swap
// technique.
String_Manager_T <character_type> tmp (value.in ());
std::swap (this->ptr_, tmp.ptr_);
return *this;
}
/// Assignment from a constant * will make a copy
inline String_Manager_T &operator= (const character_type *p) {
// Strongly exception safe by means of copy and non-throwing swap
// technique.
String_Manager_T <character_type> tmp (p);
std::swap (this->ptr_, tmp.ptr_);
return *this;
}
/// Assignment from char* will not make a copy. The String_Manager_T will now
/// own the string.
inline String_Manager_T &operator= (character_type *p) {
s_traits::release (this->ptr_);
this->ptr_ = p;
return *this;
}
/// Cast (read-only)
inline operator const character_type*() const {
return this->ptr_;
}
/// For in parameter.
inline const character_type *in (void) const {
return this->ptr_;
}
/// For inout parameter.
inline character_type *&inout (void) {
return this->ptr_;
}
/// for out parameter.
inline character_type *&out (void) {
s_traits::release (this->ptr_);
this->ptr_ = 0;
return this->ptr_;
}
/// For string of return type.
inline character_type *_retn (void) {
character_type *temp = this->ptr_;
this->ptr_ = 0;
return temp;
}
private:
/// The underlying string
character_type *ptr_;
};
typedef TAO::String_Manager_T<CORBA::Char> String_Manager;
typedef TAO::String_Manager_T<CORBA::WChar> WString_Manager;
}
inline bool operator< (const TAO::String_Manager &lhs, const TAO::String_Manager &rhs)
{
return ACE_OS::strcmp (lhs.in(), rhs.in ()) < 0;
}
inline bool operator< (const TAO::WString_Manager &lhs, const TAO::WString_Manager &rhs)
{
return ACE_OS::strcmp (lhs.in(), rhs.in ()) < 0;
}
TAO_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* TAO_STRING_MANAGER_T */
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