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Diffstat (limited to 'ACE/ace/CDR_Base.h')
-rw-r--r-- | ACE/ace/CDR_Base.h | 353 |
1 files changed, 0 insertions, 353 deletions
diff --git a/ACE/ace/CDR_Base.h b/ACE/ace/CDR_Base.h deleted file mode 100644 index afd278a5e59..00000000000 --- a/ACE/ace/CDR_Base.h +++ /dev/null @@ -1,353 +0,0 @@ -// -*- C++ -*- - -//============================================================================= -/** - * @file CDR_Base.h - * - * $Id$ - * - * ACE Common Data Representation (CDR) basic types. - * - * The current implementation assumes that the host has 1-byte, - * 2-byte and 4-byte integral types, and that it has single - * precision and double precision IEEE floats. - * Those assumptions are pretty good these days, with Crays being - * the only known exception. - * - * - * @author TAO version by - * @author Aniruddha Gokhale <gokhale@cs.wustl.edu> - * @author Carlos O'Ryan<coryan@cs.wustl.edu> - * @author ACE version by - * @author Jeff Parsons <parsons@cs.wustl.edu> - * @author Istvan Buki <istvan.buki@euronet.be> - */ -//============================================================================= - - -#ifndef ACE_CDR_BASE_H -#define ACE_CDR_BASE_H - -#include /**/ "ace/pre.h" - -#include /**/ "ace/config-all.h" - -#if !defined (ACE_LACKS_PRAGMA_ONCE) -# pragma once -#endif /* ACE_LACKS_PRAGMA_ONCE */ - -#include "ace/Basic_Types.h" -#include "ace/Default_Constants.h" - -ACE_BEGIN_VERSIONED_NAMESPACE_DECL - -class ACE_Message_Block; - -/** - * @class ACE_CDR - * - * @brief Keep constants and some routines common to both Output and - * Input CDR streams. - */ -class ACE_Export ACE_CDR -{ -public: - // = Constants defined by the CDR protocol. - // By defining as many of these constants as possible as enums we - // ensure they get inlined and avoid pointless static memory - // allocations. - - enum - { - // Note that some of these get reused as part of the standard - // binary format: unsigned is the same size as its signed cousin, - // float is LONG_SIZE, and double is LONGLONG_SIZE. - - OCTET_SIZE = 1, - SHORT_SIZE = 2, - LONG_SIZE = 4, - LONGLONG_SIZE = 8, - LONGDOUBLE_SIZE = 16, - - OCTET_ALIGN = 1, - SHORT_ALIGN = 2, - LONG_ALIGN = 4, - LONGLONG_ALIGN = 8, - /// @note the CORBA LongDouble alignment requirements do not - /// match its size... - LONGDOUBLE_ALIGN = 8, - - /// Maximal CDR 1.1 alignment: "quad precision" FP (i.e. "CDR::Long - /// double", size as above). - MAX_ALIGNMENT = 8, - - /// The default buffer size. - /** - * @todo We want to add options to control this - * default value, so this constant should be read as the default - * default value ;-) - */ - DEFAULT_BUFSIZE = ACE_DEFAULT_CDR_BUFSIZE, - - /// The buffer size grows exponentially until it reaches this size; - /// afterwards it grows linearly using the next constant - EXP_GROWTH_MAX = ACE_DEFAULT_CDR_EXP_GROWTH_MAX, - - /// Once exponential growth is ruled out the buffer size increases - /// in chunks of this size, note that this constants have the same - /// value right now, but it does not need to be so. - LINEAR_GROWTH_CHUNK = ACE_DEFAULT_CDR_LINEAR_GROWTH_CHUNK - }; - - /** - * Do byte swapping for each basic IDL type size. There exist only - * routines to put byte, halfword (2 bytes), word (4 bytes), - * doubleword (8 bytes) and quadword (16 byte); because those are - * the IDL basic type sizes. - */ - static void swap_2 (char const *orig, char *target); - static void swap_4 (char const *orig, char *target); - static void swap_8 (char const *orig, char *target); - static void swap_16 (char const *orig, char *target); - static void swap_2_array (char const *orig, - char *target, - size_t length); - static void swap_4_array (char const *orig, - char *target, - size_t length); - static void swap_8_array (char const *orig, - char *target, - size_t length); - static void swap_16_array (char const *orig, - char *target, - size_t length); - - /// Align the message block to ACE_CDR::MAX_ALIGNMENT, - /// set by the CORBA spec at 8 bytes. - static void mb_align (ACE_Message_Block *mb); - - /** - * Compute the size of the smallest buffer that can contain at least - * @a minsize bytes. - * To understand how a "best fit" is computed look at the - * algorithm in the code. - * Basically the buffers grow exponentially, up to a certain point, - * then the buffer size grows linearly. - * The advantage of this algorithm is that is rapidly grows to a - * large value, but does not explode at the end. - */ - static size_t first_size (size_t minsize); - - /// Compute not the smallest, but the second smallest buffer that - /// will fir @a minsize bytes. - static size_t next_size (size_t minsize); - - /** - * Increase the capacity of mb to contain at least @a minsize bytes. - * If @a minsize is zero the size is increased by an amount at least - * large enough to contain any of the basic IDL types. - * @retval -1 Failure - * @retval 0 Success. - */ - static int grow (ACE_Message_Block *mb, size_t minsize); - - /// Copy a message block chain into a single message block, - /// preserving the alignment of the first message block of the - /// original stream, not the following message blocks. - static void consolidate (ACE_Message_Block *dst, - const ACE_Message_Block *src); - - static size_t total_length (const ACE_Message_Block *begin, - const ACE_Message_Block *end); - - /** - * @name Basic OMG IDL Types - * - * These types are for use in the CDR classes. The cleanest way to - * avoid complaints from all compilers is to define them all. - */ - //@{ - typedef bool Boolean; - typedef unsigned char Octet; - typedef char Char; - typedef ACE_WCHAR_T WChar; - typedef ACE_INT16 Short; - typedef ACE_UINT16 UShort; - typedef ACE_INT32 Long; - typedef ACE_UINT32 ULong; - typedef ACE_UINT64 ULongLong; - -# if (defined (_MSC_VER)) || (defined (__BORLANDC__)) - typedef __int64 LongLong; -# elif ACE_SIZEOF_LONG == 8 && !defined(_CRAYMPP) - typedef long LongLong; -# elif defined(__TANDEM) - typedef long long LongLong; -# elif ACE_SIZEOF_LONG_LONG == 8 && !defined (ACE_LACKS_LONGLONG_T) -# if defined (sun) && !defined (ACE_LACKS_U_LONGLONG_T) - // sun #defines u_longlong_t, maybe other platforms do also. - // Use it, at least with g++, so that its -pedantic doesn't - // complain about no ANSI C++ long long. - typedef longlong_t LongLong; -# else - // LynxOS 2.5.0 and Linux don't have u_longlong_t. - typedef long long LongLong; -# endif /* sun */ -# else /* no native 64 bit integer type */ -# define NONNATIVE_LONGLONG - struct ACE_Export LongLong - { -# if defined (ACE_BIG_ENDIAN) - ACE_CDR::Long h; - ACE_CDR::Long l; -# else - ACE_CDR::Long l; - ACE_CDR::Long h; -# endif /* ! ACE_BIG_ENDIAN */ - - /** - * @name Overloaded Relation Operators. - * - * The canonical comparison operators. - */ - //@{ - bool operator== (const LongLong &rhs) const; - bool operator!= (const LongLong &rhs) const; - //@} - }; -# endif /* no native 64 bit integer type */ - -# if defined (NONNATIVE_LONGLONG) -# define ACE_CDR_LONGLONG_INITIALIZER {0,0} -# else -# define ACE_CDR_LONGLONG_INITIALIZER 0 -# endif /* NONNATIVE_LONGLONG */ - -# if ACE_SIZEOF_FLOAT == 4 - typedef float Float; -# else /* ACE_SIZEOF_FLOAT != 4 */ - struct Float - { -# if ACE_SIZEOF_INT == 4 - // Use unsigned int to get word alignment. - unsigned int f; -# else /* ACE_SIZEOF_INT != 4 */ - // Applications will probably have trouble with this. - char f[4]; -# if defined(_UNICOS) && !defined(_CRAYMPP) - Float (void); - Float (const float &init); - Float & operator= (const float &rhs); - bool operator!= (const Float &rhs) const; -# endif /* _UNICOS */ -# endif /* ACE_SIZEOF_INT != 4 */ - }; -# endif /* ACE_SIZEOF_FLOAT != 4 */ - -# if ACE_SIZEOF_DOUBLE == 8 - typedef double Double; -# else /* ACE_SIZEOF_DOUBLE != 8 */ - struct Double - { -# if ACE_SIZEOF_LONG == 8 - // Use u long to get word alignment. - unsigned long f; -# else /* ACE_SIZEOF_INT != 8 */ - // Applications will probably have trouble with this. - char f[8]; -# endif /* ACE_SIZEOF_INT != 8 */ - }; -# endif /* ACE_SIZEOF_DOUBLE != 8 */ - - // 94-9-32 Appendix A defines a 128 bit floating point "long - // double" data type, with greatly extended precision and four - // more bits of exponent (compared to "double"). This is an IDL - // extension, not yet standard. - -# if ACE_SIZEOF_LONG_DOUBLE == 16 - typedef long double LongDouble; -# define ACE_CDR_LONG_DOUBLE_INITIALIZER 0 -# define ACE_CDR_LONG_DOUBLE_ASSIGNMENT(LHS, RHS) LHS = RHS -# else -# define NONNATIVE_LONGDOUBLE -# define ACE_CDR_LONG_DOUBLE_INITIALIZER {{0}} -# define ACE_CDR_LONG_DOUBLE_ASSIGNMENT(LHS, RHS) LHS.assign (RHS) - struct ACE_Export LongDouble - { - // VxWorks' compiler (gcc 2.96) gets confused by the operator long - // double, so we avoid using long double as the NativeImpl. - // Linux's x86 long double format (12 or 16 bytes) is incompatible - // with Windows, Solaris, AIX, MacOS X and HP-UX (and probably others) - // long double format (8 or 16 bytes). If you need 32-bit Linux to - // inter-operate with 64-bit Linux you will want to define this - // macro to 0 so that "long double" is used. Otherwise, do not define - // this macro. -# if defined (ACE_CDR_IMPLEMENT_WITH_NATIVE_DOUBLE) && \ - (ACE_CDR_IMPLEMENT_WITH_NATIVE_DOUBLE == 1) - typedef double NativeImpl; -# else - typedef long double NativeImpl; -# endif /* ACE_CDR_IMPLEMENT_WITH_NATIVE_DOUBLE==1 */ - - char ld[16]; - - LongDouble& assign (const NativeImpl& rhs); - LongDouble& assign (const LongDouble& rhs); - - bool operator== (const LongDouble &rhs) const; - bool operator!= (const LongDouble &rhs) const; - - LongDouble& operator*= (const NativeImpl rhs) { - return this->assign (static_cast<NativeImpl> (*this) * rhs); - } - LongDouble& operator/= (const NativeImpl rhs) { - return this->assign (static_cast<NativeImpl> (*this) / rhs); - } - LongDouble& operator+= (const NativeImpl rhs) { - return this->assign (static_cast<NativeImpl> (*this) + rhs); - } - LongDouble& operator-= (const NativeImpl rhs) { - return this->assign (static_cast<NativeImpl> (*this) - rhs); - } - LongDouble& operator++ () { - return this->assign (static_cast<NativeImpl> (*this) + 1); - } - LongDouble& operator-- () { - return this->assign (static_cast<NativeImpl> (*this) - 1); - } - LongDouble operator++ (int) { - LongDouble ldv = *this; - this->assign (static_cast<NativeImpl> (*this) + 1); - return ldv; - } - LongDouble operator-- (int) { - LongDouble ldv = *this; - this->assign (static_cast<NativeImpl> (*this) - 1); - return ldv; - } - - operator NativeImpl () const; - }; -# endif /* ACE_SIZEOF_LONG_DOUBLE != 16 */ - - //@} - -#if !defined (ACE_CDR_GIOP_MAJOR_VERSION) -# define ACE_CDR_GIOP_MAJOR_VERSION 1 -#endif /*ACE_CDR_GIOP_MAJOR_VERSION */ - -#if !defined (ACE_CDR_GIOP_MINOR_VERSION) -# define ACE_CDR_GIOP_MINOR_VERSION 2 -#endif /* ACE_CDR_GIOP_MINOR_VERSION */ -}; - -ACE_END_VERSIONED_NAMESPACE_DECL - -#if defined (__ACE_INLINE__) -# include "ace/CDR_Base.inl" -#endif /* __ACE_INLINE__ */ - - -#include /**/ "ace/post.h" - -#endif /* ACE_CDR_BASE_H */ |