ACE_CDR Class Reference

Keep constants and some routines common to both Output and Input CDR streams. More...

#include <CDR_Base.h>

List of all members.

Public Types
enum	{   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, LONGDOUBLE_ALIGN = 8, MAX_ALIGNMENT = 8, DEFAULT_BUFSIZE = ACE_DEFAULT_CDR_BUFSIZE,   EXP_GROWTH_MAX = ACE_DEFAULT_CDR_EXP_GROWTH_MAX, LINEAR_GROWTH_CHUNK = ACE_DEFAULT_CDR_LINEAR_GROWTH_CHUNK }
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 ACE::If_Then_Else< (sizeof(bool)==1), bool, unsigned char >::result_typ	Boolean )
typedef unsigned char	Octet
typedef char	Char
typedef wchar_t	WChar
typedef ACE_INT16	Short
typedef ACE_UINT16	UShort
typedef ACE_INT32	Long
typedef ACE_UINT32	ULong
typedef ACE_UINT64	ULongLong
typedef long long	LongLong
Static Public Member Functions
static void	swap_2 (const char *orig, char *target)
static void	swap_4 (const char *orig, char *target)
static void	swap_8 (const char *orig, char *target)
static void	swap_16 (const char *orig, char *target)
static void	swap_2_array (const char *orig, char *target, size_t length)
static void	swap_4_array (const char *orig, char *target, size_t length)
static void	swap_8_array (const char *orig, char *target, size_t length)
static void	swap_16_array (const char *orig, char *target, size_t length)
static void	mb_align (ACE_Message_Block *mb)
static size_t	first_size (size_t minsize)
static size_t	next_size (size_t minsize)
static int	grow (ACE_Message_Block *mb, size_t minsize)
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)
Classes
struct	Double
struct	Float
struct	LongDouble

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Detailed Description

Keep constants and some routines common to both Output and Input CDR streams.

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Member Typedef Documentation

typedef ACE::If_Then_Else<(sizeof (bool) == 1), bool, unsigned char>::result_typ ACE_CDR::Boolean)

typedef char ACE_CDR::Char

typedef ACE_INT32 ACE_CDR::Long

typedef long long ACE_CDR::LongLong

typedef unsigned char ACE_CDR::Octet

typedef ACE_INT16 ACE_CDR::Short

typedef ACE_UINT32 ACE_CDR::ULong

typedef ACE_UINT64 ACE_CDR::ULongLong

typedef ACE_UINT16 ACE_CDR::UShort

typedef wchar_t ACE_CDR::WChar

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Member Enumeration Documentation

anonymous enum

Enumerator: OCTET_SIZE  SHORT_SIZE  LONG_SIZE  LONGLONG_SIZE  LONGDOUBLE_SIZE  OCTET_ALIGN  SHORT_ALIGN  LONG_ALIGN  LONGLONG_ALIGN  LONGDOUBLE_ALIGN  Note: the CORBA LongDouble alignment requirements do not match its size... MAX_ALIGNMENT  Maximal CDR 1.1 alignment: "quad precision" FP (i.e. "CDRLong double", size as above). DEFAULT_BUFSIZE  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 ;-) EXP_GROWTH_MAX  The buffer size grows exponentially until it reaches this size; afterwards it grows linearly using the next constant LINEAR_GROWTH_CHUNK  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.

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Member Function Documentation

void ACE_CDR::consolidate (  ACE_Message_Block *  dst, const ACE_Message_Block *  src )  [static]

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.

ACE_INLINE size_t ACE_CDR::first_size (  size_t  minsize  )  [static]

Compute the size of the smallest buffer that can contain at least <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.

int ACE_CDR::grow (  ACE_Message_Block *  mb, size_t  minsize )  [static]

Increase the capacity of mb to contain at least <minsize> bytes. If <minsize> is zero the size is increased by an amount at least large enough to contain any of the basic IDL types. Return -1 on failure, 0 on success.

void ACE_CDR::mb_align (  ACE_Message_Block *  mb  )  [static]

Align the message block to ACE_CDR::MAX_ALIGNMENT, set by the CORBA spec at 8 bytes.

ACE_INLINE size_t ACE_CDR::next_size (  size_t  minsize  )  [static]

Compute not the smallest, but the second smallest buffer that will fir <minsize> bytes.

ACE_INLINE void ACE_CDR::swap_16 (  const char *  orig, char *  target )  [static]

void ACE_CDR::swap_16_array (  const char *  orig, char *  target, size_t  length )  [static]

ACE_INLINE void ACE_CDR::swap_2 (  const char *  orig, char *  target )  [static]

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.

void ACE_CDR::swap_2_array (  const char *  orig, char *  target, size_t  length )  [static]

ACE_INLINE void ACE_CDR::swap_4 (  const char *  orig, char *  target )  [static]

void ACE_CDR::swap_4_array (  const char *  orig, char *  target, size_t  length )  [static]

ACE_INLINE void ACE_CDR::swap_8 (  const char *  orig, char *  target )  [static]

void ACE_CDR::swap_8_array (  const char *  orig, char *  target, size_t  length )  [static]

size_t ACE_CDR::total_length (  const ACE_Message_Block *  begin, const ACE_Message_Block *  end )  [static]

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

• CDR_Base.h
• CDR_Base.cpp
• CDR_Base.inl

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