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// -*- C++ -*-
#include "tao/String_Alloc.h"
#include "ace/OS_NS_string.h"
#include "ace/OS_NS_wchar.h"
#include "ace/OS_Memory.h"
#include <cstring>
#ifndef TAO_NO_SHARED_NULL_CORBA_STRING
static char null_char[]= "";
static CORBA::WChar null_wchar[]=
# if defined(ACE_HAS_WCHAR) || defined(ACE_HAS_XPG4_MULTIBYTE_CHAR)
L"";
# else
{ 0 };
# endif
#endif /* TAO_NO_SHARED_NULL_CORBA_STRING */
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
char *
CORBA::string_dup (const char *str)
{
if (!str)
{
errno = EINVAL;
return nullptr;
}
#ifndef TAO_NO_SHARED_NULL_CORBA_STRING
if (!*str)
return null_char;
#endif /* TAO_NO_SHARED_NULL_CORBA_STRING */
size_t const len = std::strlen (str);
// This allocates an extra byte for the '\0';
char * copy = CORBA::string_alloc (static_cast<CORBA::ULong> (len));
if (copy)
{
// The memcpy() assumes that the destination is a valid buffer.
ACE_OS::memcpy (copy, str, len + 1);
}
return copy;
}
char *
CORBA::string_alloc (CORBA::ULong len)
{
// Allocate 1 + strlen to accomodate the null terminating character.
char *s = nullptr;
ACE_NEW_RETURN (s,
char[size_t (len + 1)],
nullptr);
s[0]= '\0';
return s;
}
void
CORBA::string_free (char *str)
{
#ifndef TAO_NO_SHARED_NULL_CORBA_STRING
if (null_char != str)
#endif /* TAO_NO_SHARED_NULL_CORBA_STRING */
delete [] str;
}
// ****************************************************************
CORBA::WChar*
CORBA::wstring_dup (const WChar *const str)
{
if (!str)
{
errno = EINVAL;
return nullptr;
}
#ifndef TAO_NO_SHARED_NULL_CORBA_STRING
if (!*str)
return null_wchar;
#endif /* TAO_NO_SHARED_NULL_CORBA_STRING */
CORBA::WChar* retval =
CORBA::wstring_alloc (static_cast <CORBA::ULong> (ACE_OS::strlen (str)));
if (retval == nullptr)
{
// The wscpy() below assumes that the destination is a valid buffer.
return nullptr;
}
return ACE_OS::wscpy (retval, str);
}
CORBA::WChar*
CORBA::wstring_alloc (CORBA::ULong len)
{
CORBA::WChar *s = nullptr;
ACE_NEW_RETURN (s,
CORBA::WChar [(size_t) (len + 1)],
nullptr);
return s;
}
void
CORBA::wstring_free (CORBA::WChar *const str)
{
#ifndef TAO_NO_SHARED_NULL_CORBA_STRING
if (null_wchar != str)
#endif /* TAO_NO_SHARED_NULL_CORBA_STRING */
delete [] str;
}
TAO_END_VERSIONED_NAMESPACE_DECL
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