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server/dep/acelite/ace/CDR_Stream.cpp
Salja f4be15a7af Some missing from merge. 
Signed-off-by: Salja <salja2012@hotmail.de>
2020-02-16 02:50:23 +00:00

2258 lines
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// $Id: CDR_Stream.cpp 96411 2012-11-29 10:31:26Z johnnyw $
#include "ace/CDR_Stream.h"
#include "ace/SString.h"
#include "ace/Auto_Ptr.h"
#include "ace/Truncate.h"
#if !defined (__ACE_INLINE__)
# include "ace/CDR_Stream.inl"
#endif /* ! __ACE_INLINE__ */
// ****************************************************************
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
size_t ACE_OutputCDR::wchar_maxbytes_ = sizeof (ACE_CDR::WChar);
ACE_OutputCDR::ACE_OutputCDR (size_t size,
int byte_order,
ACE_Allocator *buffer_allocator,
ACE_Allocator *data_block_allocator,
ACE_Allocator *message_block_allocator,
size_t memcpy_tradeoff,
ACE_CDR::Octet major_version,
ACE_CDR::Octet minor_version)
: start_ ((size ? size : (size_t) ACE_CDR::DEFAULT_BUFSIZE) + ACE_CDR::MAX_ALIGNMENT,
ACE_Message_Block::MB_DATA,
0,
0,
buffer_allocator,
0,
0,
ACE_Time_Value::zero,
ACE_Time_Value::max_time,
data_block_allocator,
message_block_allocator),
#if !defined (ACE_LACKS_CDR_ALIGNMENT)
current_alignment_ (0),
#endif /* ACE_LACKS_CDR_ALIGNMENT */
current_is_writable_ (true),
do_byte_swap_ (byte_order != ACE_CDR_BYTE_ORDER),
good_bit_ (true),
memcpy_tradeoff_ (memcpy_tradeoff),
major_version_ (major_version),
minor_version_ (minor_version),
char_translator_ (0),
wchar_translator_ (0)
{
ACE_CDR::mb_align (&this->start_);
this->current_ = &this->start_;
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (this->total_length ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
ACE_OutputCDR::ACE_OutputCDR (char *data,
size_t size,
int byte_order,
ACE_Allocator *buffer_allocator,
ACE_Allocator *data_block_allocator,
ACE_Allocator *message_block_allocator,
size_t memcpy_tradeoff,
ACE_CDR::Octet major_version,
ACE_CDR::Octet minor_version)
: start_ (size,
ACE_Message_Block::MB_DATA,
0,
data,
buffer_allocator,
0,
0,
ACE_Time_Value::zero,
ACE_Time_Value::max_time,
data_block_allocator,
message_block_allocator),
#if !defined (ACE_LACKS_CDR_ALIGNMENT)
current_alignment_ (0),
#endif /* ACE_LACKS_CDR_ALIGNMENT */
current_is_writable_ (true),
do_byte_swap_ (byte_order != ACE_CDR_BYTE_ORDER),
good_bit_ (true),
memcpy_tradeoff_ (memcpy_tradeoff),
major_version_ (major_version),
minor_version_ (minor_version),
char_translator_ (0),
wchar_translator_ (0)
{
// We cannot trust the buffer to be properly aligned
ACE_CDR::mb_align (&this->start_);
this->current_ = &this->start_;
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (this->total_length ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
ACE_OutputCDR::ACE_OutputCDR (ACE_Data_Block *data_block,
int byte_order,
ACE_Allocator *message_block_allocator,
size_t memcpy_tradeoff,
ACE_CDR::Octet major_version,
ACE_CDR::Octet minor_version)
: start_ (data_block,
ACE_Message_Block::DONT_DELETE,
message_block_allocator),
#if !defined (ACE_LACKS_CDR_ALIGNMENT)
current_alignment_ (0),
#endif /* ACE_LACKS_CDR_ALIGNMENT */
current_is_writable_ (true),
do_byte_swap_ (byte_order != ACE_CDR_BYTE_ORDER),
good_bit_ (true),
memcpy_tradeoff_ (memcpy_tradeoff),
major_version_ (major_version),
minor_version_ (minor_version),
char_translator_ (0),
wchar_translator_ (0)
{
// We cannot trust the buffer to be properly aligned
ACE_CDR::mb_align (&this->start_);
this->current_ = &this->start_;
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (this->total_length ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
ACE_OutputCDR::ACE_OutputCDR (ACE_Message_Block *data,
int byte_order,
size_t memcpy_tradeoff,
ACE_CDR::Octet major_version,
ACE_CDR::Octet minor_version)
: start_ (data->data_block ()->duplicate ()),
#if !defined (ACE_LACKS_CDR_ALIGNMENT)
current_alignment_ (0),
#endif /* ACE_LACKS_CDR_ALIGNMENT */
current_is_writable_ (true),
do_byte_swap_ (byte_order != ACE_CDR_BYTE_ORDER),
good_bit_ (true),
memcpy_tradeoff_ (memcpy_tradeoff),
major_version_ (major_version),
minor_version_ (minor_version),
char_translator_ (0),
wchar_translator_ (0)
{
// We cannot trust the buffer to be properly aligned
ACE_CDR::mb_align (&this->start_);
this->current_ = &this->start_;
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (this->total_length ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
/*static*/ void
ACE_OutputCDR::wchar_maxbytes (size_t maxbytes)
{
ACE_OutputCDR::wchar_maxbytes_ = maxbytes;
}
/*static*/ size_t
ACE_OutputCDR::wchar_maxbytes ()
{
return ACE_OutputCDR::wchar_maxbytes_;
}
int
ACE_OutputCDR::grow_and_adjust (size_t size,
size_t align,
char*& buf)
{
if (!this->current_is_writable_
|| this->current_->cont () == 0
|| this->current_->cont ()->size () < size + ACE_CDR::MAX_ALIGNMENT)
{
// Calculate the new buffer's length; if growing for encode, we
// don't grow in "small" chunks because of the cost.
size_t cursize = this->current_->size ();
if (this->current_->cont () != 0)
cursize = this->current_->cont ()->size ();
size_t minsize = size;
#if !defined (ACE_LACKS_CDR_ALIGNMENT)
minsize += ACE_CDR::MAX_ALIGNMENT;
#endif /* ACE_LACKS_CDR_ALIGNMENT */
// Make sure that there is enough room for <minsize> bytes, but
// also make it bigger than whatever our current size is.
if (minsize < cursize)
minsize = cursize;
size_t const newsize = ACE_CDR::next_size (minsize);
this->good_bit_ = false;
ACE_Message_Block* tmp = 0;
ACE_NEW_RETURN (tmp,
ACE_Message_Block (newsize,
ACE_Message_Block::MB_DATA,
0,
0,
this->current_->data_block ()->allocator_strategy (),
0,
0,
ACE_Time_Value::zero,
ACE_Time_Value::max_time,
this->current_->data_block ()->data_block_allocator ()),
-1);
// Message block initialization may fail while the construction
// succeds. Since as a matter of policy, ACE may throw no
// exceptions, we have to do a separate check like this.
if (tmp != 0 && tmp->size () < newsize)
{
delete tmp;
errno = ENOMEM;
return -1;
}
this->good_bit_ = true;
#if !defined (ACE_LACKS_CDR_ALIGNMENT)
// The new block must start with the same alignment as the
// previous block finished.
ptrdiff_t const tmpalign =
reinterpret_cast<ptrdiff_t> (tmp->rd_ptr ()) % ACE_CDR::MAX_ALIGNMENT;
ptrdiff_t const curalign =
static_cast<ptrdiff_t> (this->current_alignment_) % ACE_CDR::MAX_ALIGNMENT;
ptrdiff_t offset = curalign - tmpalign;
if (offset < 0)
offset += ACE_CDR::MAX_ALIGNMENT;
tmp->rd_ptr (static_cast<size_t> (offset));
tmp->wr_ptr (tmp->rd_ptr ());
#endif /* ACE_LACKS_CDR_ALIGNMENT */
// grow the chain and set the current block.
tmp->cont (this->current_->cont ());
this->current_->cont (tmp);
}
this->current_ = this->current_->cont ();
this->current_is_writable_ = true;
return this->adjust (size, align, buf);
}
ACE_CDR::Boolean
ACE_OutputCDR::write_wchar (ACE_CDR::WChar x)
{
if (this->wchar_translator_ != 0)
return (this->good_bit_ = this->wchar_translator_->write_wchar (*this, x));
if (ACE_OutputCDR::wchar_maxbytes_ == 0)
{
errno = EACCES;
return (this->good_bit_ = false);
}
if (static_cast<ACE_CDR::Short> (major_version_) == 1
&& static_cast<ACE_CDR::Short> (minor_version_) == 2)
{
ACE_CDR::Octet len =
static_cast<ACE_CDR::Octet> (ACE_OutputCDR::wchar_maxbytes_);
if (this->write_1 (&len))
{
if (ACE_OutputCDR::wchar_maxbytes_ == sizeof(ACE_CDR::WChar))
return
this->write_octet_array (
reinterpret_cast<const ACE_CDR::Octet*> (&x),
static_cast<ACE_CDR::ULong> (len));
else
if (ACE_OutputCDR::wchar_maxbytes_ == 2)
{
ACE_CDR::Short sx = static_cast<ACE_CDR::Short> (x);
return
this->write_octet_array (
reinterpret_cast<const ACE_CDR::Octet*> (&sx),
static_cast<ACE_CDR::ULong> (len));
}
else
{
ACE_CDR::Octet ox = static_cast<ACE_CDR::Octet> (x);
return
this->write_octet_array (
reinterpret_cast<const ACE_CDR::Octet*> (&ox),
static_cast<ACE_CDR::ULong> (len));
}
}
}
else if (static_cast<ACE_CDR::Short> (minor_version_) == 0)
{ // wchar is not allowed with GIOP 1.0.
errno = EINVAL;
return (this->good_bit_ = false);
}
if (ACE_OutputCDR::wchar_maxbytes_ == sizeof (ACE_CDR::WChar))
{
void const * const temp = &x;
return
this->write_4 (reinterpret_cast<const ACE_CDR::ULong *> (temp));
}
else if (ACE_OutputCDR::wchar_maxbytes_ == 2)
{
ACE_CDR::Short sx = static_cast<ACE_CDR::Short> (x);
return this->write_2 (reinterpret_cast<const ACE_CDR::UShort *> (&sx));
}
ACE_CDR::Octet ox = static_cast<ACE_CDR::Octet> (x);
return this->write_1 (reinterpret_cast<const ACE_CDR::Octet *> (&ox));
}
ACE_CDR::Boolean
ACE_OutputCDR::write_string (ACE_CDR::ULong len,
const ACE_CDR::Char *x)
{
// @@ This is a slight violation of "Optimize for the common case",
// i.e. normally the translator will be 0, but OTOH the code is
// smaller and should be better for the cache ;-) ;-)
if (this->char_translator_ != 0)
return this->char_translator_->write_string (*this, len, x);
if (len != 0)
{
if (this->write_ulong (len + 1))
return this->write_char_array (x, len + 1);
}
else
{
// Be nice to programmers: treat nulls as empty strings not
// errors. (OMG-IDL supports languages that don't use the C/C++
// notion of null v. empty strings; nulls aren't part of the OMG-IDL
// string model.)
if (this->write_ulong (1))
return this->write_char (0);
}
return (this->good_bit_ = false);
}
ACE_CDR::Boolean
ACE_OutputCDR::write_string (const ACE_CString &x)
{
// @@ Leave this method in here, not the `.i' file so that we don't
// have to unnecessarily pull in the `ace/SString.h' header.
return this->write_string (static_cast<ACE_CDR::ULong> (x.length ()),
x.c_str());
}
ACE_CDR::Boolean
ACE_OutputCDR::write_wstring (ACE_CDR::ULong len,
const ACE_CDR::WChar *x)
{
// @@ This is a slight violation of "Optimize for the common case",
// i.e. normally the translator will be 0, but OTOH the code is
// smaller and should be better for the cache ;-) ;-)
// What do we do for GIOP 1.2???
if (this->wchar_translator_ != 0)
return this->wchar_translator_->write_wstring (*this, len, x);
if (ACE_OutputCDR::wchar_maxbytes_ == 0)
{
errno = EACCES;
return (this->good_bit_ = false);
}
if (static_cast<ACE_CDR::Short> (this->major_version_) == 1
&& static_cast<ACE_CDR::Short> (this->minor_version_) == 2)
{
if (x != 0)
{
//In GIOP 1.2 the length field contains the number of bytes
//the wstring occupies rather than number of wchars
//Taking sizeof might not be a good way! This is a temporary fix.
ACE_CDR::Boolean good_ulong =
this->write_ulong (
ACE_Utils::truncate_cast<ACE_CDR::ULong> (
ACE_OutputCDR::wchar_maxbytes_ * len));
if (good_ulong)
{
return this->write_wchar_array (x, len);
}
}
else
{
//In GIOP 1.2 zero length wstrings are legal
return this->write_ulong (0);
}
}
else
if (x != 0)
{
if (this->write_ulong (len + 1))
return this->write_wchar_array (x, len + 1);
}
else if (this->write_ulong (1))
return this->write_wchar (0);
return (this->good_bit_ = false);
}
ACE_CDR::Boolean
ACE_OutputCDR::write_octet_array_mb (const ACE_Message_Block* mb)
{
// If the buffer is small and it fits in the current message
// block it is be cheaper just to copy the buffer.
for (const ACE_Message_Block* i = mb;
i != 0;
i = i->cont ())
{
size_t const length = i->length ();
// If the mb does not own its data we are forced to make a copy.
if (ACE_BIT_ENABLED (i->flags (),
ACE_Message_Block::DONT_DELETE))
{
if (! this->write_array (i->rd_ptr (),
ACE_CDR::OCTET_SIZE,
ACE_CDR::OCTET_ALIGN,
static_cast<ACE_CDR::ULong> (length)))
return (this->good_bit_ = false);
continue;
}
if (length < this->memcpy_tradeoff_
&& this->current_->wr_ptr () + length < this->current_->end ())
{
if (! this->write_array (i->rd_ptr (),
ACE_CDR::OCTET_SIZE,
ACE_CDR::OCTET_ALIGN,
static_cast<ACE_CDR::ULong> (length)))
return (this->good_bit_ = false);
continue;
}
ACE_Message_Block* cont = 0;
this->good_bit_ = false;
ACE_NEW_RETURN (cont,
ACE_Message_Block (i->data_block ()->duplicate ()),
false);
this->good_bit_ = true;
if (this->current_->cont () != 0)
ACE_Message_Block::release (this->current_->cont ());
cont->rd_ptr (i->rd_ptr ());
cont->wr_ptr (i->wr_ptr ());
this->current_->cont (cont);
this->current_ = cont;
this->current_is_writable_ = false;
#if !defined (ACE_LACKS_CDR_ALIGNMENT)
this->current_alignment_ =
(this->current_alignment_ + cont->length ()) % ACE_CDR::MAX_ALIGNMENT;
#endif /* ACE_LACKS_CDR_ALIGNMENT */
}
return true;
}
ACE_CDR::Boolean
ACE_OutputCDR::write_1 (const ACE_CDR::Octet *x)
{
char *buf = 0;
if (this->adjust (1, buf) == 0)
{
*reinterpret_cast<ACE_CDR::Octet*> (buf) = *x;
return true;
}
return false;
}
ACE_CDR::Boolean
ACE_OutputCDR::write_2 (const ACE_CDR::UShort *x)
{
char *buf = 0;
if (this->adjust (ACE_CDR::SHORT_SIZE, buf) == 0)
{
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
*reinterpret_cast<ACE_CDR::UShort*> (buf) = *x;
return true;
#else
if (!this->do_byte_swap_)
{
*reinterpret_cast<ACE_CDR::UShort *> (buf) = *x;
return true;
}
else
{
ACE_CDR::swap_2 (reinterpret_cast<const char*> (x), buf);
return true;
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
}
return false;
}
ACE_CDR::Boolean
ACE_OutputCDR::write_4 (const ACE_CDR::ULong *x)
{
char *buf = 0;
if (this->adjust (ACE_CDR::LONG_SIZE, buf) == 0)
{
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
*reinterpret_cast<ACE_CDR::ULong*> (buf) = *x;
return true;
#else
if (!this->do_byte_swap_)
{
*reinterpret_cast<ACE_CDR::ULong *> (buf) = *x;
return true;
}
else
{
ACE_CDR::swap_4 (reinterpret_cast<const char*> (x), buf);
return true;
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
}
return false;
}
ACE_CDR::Boolean
ACE_OutputCDR::write_8 (const ACE_CDR::ULongLong *x)
{
char *buf = 0;
if (this->adjust (ACE_CDR::LONGLONG_SIZE, buf) == 0)
{
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
*reinterpret_cast<ACE_CDR::ULongLong *> (buf) = *x;
return true;
#else
if (!this->do_byte_swap_)
{
*reinterpret_cast<ACE_CDR::ULongLong *> (buf) = *x;
return true;
}
else
{
ACE_CDR::swap_8 (reinterpret_cast<const char*> (x), buf);
return true;
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
}
return false;
}
ACE_CDR::Boolean
ACE_OutputCDR::write_16 (const ACE_CDR::LongDouble *x)
{
char* buf = 0;
if (this->adjust (ACE_CDR::LONGDOUBLE_SIZE,
ACE_CDR::LONGDOUBLE_ALIGN,
buf) == 0)
{
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
*reinterpret_cast<ACE_CDR::LongDouble*> (buf) = *x;
return 1;
#else
if (!this->do_byte_swap_)
{
*reinterpret_cast<ACE_CDR::LongDouble *> (buf) = *x;
return true;
}
else
{
ACE_CDR::swap_16 (reinterpret_cast<const char*> (x), buf);
return true;
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
}
return false;
}
ACE_CDR::Boolean
ACE_OutputCDR::write_wchar_array_i (const ACE_CDR::WChar *x,
ACE_CDR::ULong length)
{
if (length == 0)
return true;
char* buf = 0;
size_t const align = (ACE_OutputCDR::wchar_maxbytes_ == 2) ?
ACE_CDR::SHORT_ALIGN :
ACE_CDR::OCTET_ALIGN;
if (this->adjust (ACE_OutputCDR::wchar_maxbytes_ * length, align, buf) == 0)
{
if (ACE_OutputCDR::wchar_maxbytes_ == 2)
{
ACE_CDR::UShort *sb = reinterpret_cast<ACE_CDR::UShort *> (buf);
for (size_t i = 0; i < length; ++i)
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
sb[i] = static_cast<ACE_CDR::UShort> (x[i]);
#else
if (!this->do_byte_swap_)
sb[i] = static_cast<ACE_CDR::UShort> (x[i]);
else
{
ACE_CDR::UShort sx = static_cast<ACE_CDR::UShort> (x[i]);
ACE_CDR::swap_2 (reinterpret_cast<char *> (&sx), &buf[i * 2]);
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
}
else
{
for (size_t i = 0; i < length; ++i)
buf[i] = static_cast<char> (x[i]);
}
return this->good_bit_;
}
return false;
}
ACE_CDR::Boolean
ACE_OutputCDR::write_array (const void *x,
size_t size,
size_t align,
ACE_CDR::ULong length)
{
if (length == 0)
return true;
char *buf = 0;
if (this->adjust (size * length, align, buf) == 0)
{
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
ACE_OS::memcpy (buf, x, size*length);
return true;
#else
if (!this->do_byte_swap_ || size == 1)
{
ACE_OS::memcpy (buf, x, size*length);
return true;
}
else
{
const char *source = reinterpret_cast<const char *> (x);
switch (size)
{
case 2:
ACE_CDR::swap_2_array (source, buf, length);
return true;
case 4:
ACE_CDR::swap_4_array (source, buf, length);
return true;
case 8:
ACE_CDR::swap_8_array (source, buf, length);
return true;
case 16:
ACE_CDR::swap_16_array (source, buf, length);
return true;
default:
// TODO: print something?
this->good_bit_ = false;
return false;
}
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
}
this->good_bit_ = false;
return false;
}
ACE_CDR::Boolean
ACE_OutputCDR::write_boolean_array (const ACE_CDR::Boolean* x,
ACE_CDR::ULong length)
{
// It is hard to optimize this, the spec requires that on the wire
// booleans be represented as a byte with value 0 or 1, but in
// memory it is possible (though very unlikely) that a boolean has
// a non-zero value (different from 1).
// We resort to a simple loop.
ACE_CDR::Boolean const * const end = x + length;
for (ACE_CDR::Boolean const * i = x;
i != end && this->good_bit ();
++i)
(void) this->write_boolean (*i);
return this->good_bit ();
}
char *
ACE_OutputCDR::write_long_placeholder (void)
{
char *buf = 0;
if (this->adjust (ACE_CDR::LONG_SIZE, buf) == 0)
*reinterpret_cast<ACE_CDR::ULong*> (buf) = 0;
else
buf = 0;
return buf;
}
char *
ACE_OutputCDR::write_short_placeholder (void)
{
char *buf = 0;
if (this->adjust (ACE_CDR::SHORT_SIZE, buf) == 0)
*reinterpret_cast<ACE_CDR::UShort*> (buf) = 0;
else
buf = 0;
return buf;
}
char *
ACE_OutputCDR::write_boolean_placeholder (void)
{
char *buf = 0;
if (this->adjust (ACE_CDR::OCTET_SIZE, buf) == 0)
*reinterpret_cast<ACE_CDR::Boolean*> (buf) = 0;
else
buf = 0;
return buf;
}
char *
ACE_OutputCDR::write_char_placeholder (void)
{
char *buf = 0;
if (this->adjust (ACE_CDR::OCTET_SIZE, buf) == 0)
*reinterpret_cast<ACE_CDR::Char*> (buf) = 0;
else
buf = 0;
return buf;
}
char *
ACE_OutputCDR::write_octet_placeholder (void)
{
char *buf = 0;
if (this->adjust (ACE_CDR::OCTET_SIZE, buf) == 0)
*reinterpret_cast<ACE_CDR::Octet*> (buf) = 0;
else
buf = 0;
return buf;
}
char *
ACE_OutputCDR::write_longlong_placeholder (void)
{
char *buf = 0;
if (this->adjust (ACE_CDR::LONGLONG_SIZE, buf) == 0)
*reinterpret_cast<ACE_CDR::ULongLong*> (buf) = 0;
else
buf = 0;
return buf;
}
char *
ACE_OutputCDR::write_float_placeholder (void)
{
char *buf = 0;
if (this->adjust (ACE_CDR::LONG_SIZE, buf) == 0)
*reinterpret_cast<ACE_CDR::ULong*> (buf) = 0;
else
buf = 0;
return buf;
}
char *
ACE_OutputCDR::write_double_placeholder (void)
{
char *buf = 0;
if (this->adjust (ACE_CDR::LONGLONG_SIZE, buf) == 0)
*reinterpret_cast<ACE_CDR::ULongLong*> (buf) = 0;
else
buf = 0;
return buf;
}
ACE_CDR::Boolean
ACE_OutputCDR::replace (ACE_CDR::Long x, char* loc)
{
if (this->find (loc) == 0)
return false;
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
*reinterpret_cast<ACE_CDR::Long*> (loc) = x;
#else
if (!this->do_byte_swap_)
{
*reinterpret_cast<ACE_CDR::Long *> (loc) = x;
}
else
{
ACE_CDR::swap_4 (reinterpret_cast<const char*> (&x), loc);
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
return true;
}
ACE_CDR::Boolean
ACE_OutputCDR::replace (ACE_CDR::ULong x, char* loc)
{
if (this->find (loc) == 0)
return false;
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
*reinterpret_cast<ACE_CDR::ULong*> (loc) = x;
#else
if (!this->do_byte_swap_)
{
*reinterpret_cast<ACE_CDR::ULong *> (loc) = x;
}
else
{
ACE_CDR::swap_4 (reinterpret_cast<const char*> (&x), loc);
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
return true;
}
ACE_CDR::Boolean
ACE_OutputCDR::replace (ACE_CDR::Short x, char* loc)
{
if (this->find (loc) == 0)
return false;
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
*reinterpret_cast<ACE_CDR::Short*> (loc) = x;
#else
if (!this->do_byte_swap_)
{
*reinterpret_cast<ACE_CDR::Short *> (loc) = x;
}
else
{
ACE_CDR::swap_2 (reinterpret_cast<const char*> (&x), loc);
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
return true;
}
ACE_CDR::Boolean
ACE_OutputCDR::replace (ACE_CDR::UShort x, char* loc)
{
if (this->find (loc) == 0)
return false;
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
*reinterpret_cast<ACE_CDR::UShort*> (loc) = x;
#else
if (!this->do_byte_swap_)
{
*reinterpret_cast<ACE_CDR::UShort *> (loc) = x;
}
else
{
ACE_CDR::swap_2 (reinterpret_cast<const char*> (&x), loc);
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
return true;
}
ACE_CDR::Boolean
ACE_OutputCDR::replace (ACE_CDR::Boolean x, char* loc)
{
if (this->find (loc) == 0)
return false;
*reinterpret_cast<ACE_CDR::Boolean*> (loc) = x;
return true;
}
ACE_CDR::Boolean
ACE_OutputCDR::replace (ACE_CDR::Char x, char* loc)
{
if (this->find (loc) == 0)
return false;
*reinterpret_cast<ACE_CDR::Char*> (loc) = x;
return true;
}
ACE_CDR::Boolean
ACE_OutputCDR::replace (ACE_CDR::Octet x, char* loc)
{
if (this->find (loc) == 0)
return false;
*reinterpret_cast<ACE_CDR::Octet*> (loc) = x;
return true;
}
ACE_CDR::Boolean
ACE_OutputCDR::replace (ACE_CDR::LongLong x, char* loc)
{
if (this->find (loc) == 0)
return false;
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
*reinterpret_cast<ACE_CDR::LongLong*> (loc) = x;
#else
if (!this->do_byte_swap_)
{
*reinterpret_cast<ACE_CDR::LongLong*> (loc) = x;
}
else
{
ACE_CDR::swap_8 (reinterpret_cast<const char*> (&x), loc);
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
return true;
}
ACE_CDR::Boolean
ACE_OutputCDR::replace (ACE_CDR::ULongLong x, char* loc)
{
if (this->find (loc) == 0)
return false;
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
*reinterpret_cast<ACE_CDR::ULongLong*> (loc) = x;
#else
if (!this->do_byte_swap_)
{
*reinterpret_cast<ACE_CDR::ULongLong*> (loc) = x;
}
else
{
ACE_CDR::swap_8 (reinterpret_cast<const char*> (&x), loc);
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
return true;
}
ACE_CDR::Boolean
ACE_OutputCDR::replace (ACE_CDR::Float x, char* loc)
{
if (this->find (loc) == 0)
return false;
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
*reinterpret_cast<ACE_CDR::Float*> (loc) = x;
#else
if (!this->do_byte_swap_)
{
*reinterpret_cast<ACE_CDR::Float*> (loc) = x;
}
else
{
ACE_CDR::swap_4 (reinterpret_cast<const char*> (&x), loc);
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
return true;
}
ACE_CDR::Boolean
ACE_OutputCDR::replace (ACE_CDR::Double x, char* loc)
{
if (this->find (loc) == 0)
return false;
#if !defined (ACE_ENABLE_SWAP_ON_WRITE)
*reinterpret_cast<ACE_CDR::Double*> (loc) = x;
#else
if (!this->do_byte_swap_)
{
*reinterpret_cast<ACE_CDR::Double*> (loc) = x;
}
else
{
ACE_CDR::swap_8 (reinterpret_cast<const char*> (&x), loc);
}
#endif /* ACE_ENABLE_SWAP_ON_WRITE */
return true;
}
int
ACE_OutputCDR::consolidate (void)
{
// Optimize by only doing something if we need to
if (this->current_ != &this->start_)
{
// Set the number of bytes in the top-level block, reallocating
// if necessary. The rd_ptr and wr_ptr remain at the original offsets
// into the buffer, even if it is reallocated.
// Return an error if the allocation failed.
size_t const newsize =
ACE_CDR::first_size (this->total_length ()
+ ACE_CDR::MAX_ALIGNMENT);
if (this->start_.size (newsize) < 0)
{
return -1;
}
// Consolidate the chain into the first block. NOTE that
// ACE_CDR::consolidate can not be used since we don't want to
// overwrite what is already in the first block. We just append it since
// the read and write pointers weren't affected by the resizing above.
// We also don't have to worry about alignment since the start block is
// already aligned.
// NOTE also we know there is a continuation since we checked for it
// above. There is therefore no reason to check for a 0 continuation
// field here.
ACE_Message_Block *cont = this->start_.cont ();
for (const ACE_Message_Block* i = cont; i != 0; i = i->cont ())
{
this->start_.copy (i->rd_ptr (), i->length ());
}
// Release the old blocks that were consolidated and reset the
// current_ and current_is_writable_ to reflect the single used block.
ACE_Message_Block::release (cont);
this->start_.cont (0);
this->current_ = &this->start_;
this->current_is_writable_ = true;
}
return 0;
}
ACE_Message_Block*
ACE_OutputCDR::find (char* loc)
{
ACE_Message_Block* mb = 0;
for (mb = &this->start_; mb != 0; mb = mb->cont ())
{
if (loc <= mb->wr_ptr () && loc >= mb->rd_ptr ())
{
break;
}
}
return mb;
}
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
void
ACE_OutputCDR::register_monitor (const char *id)
{
this->monitor_->name (id);
this->monitor_->add_to_registry ();
}
void
ACE_OutputCDR::unregister_monitor (void)
{
this->monitor_->remove_from_registry ();
}
#endif /* ACE_HAS_MONITOR_POINTS==1 */
// ****************************************************************
ACE_InputCDR::ACE_InputCDR (const char *buf,
size_t bufsiz,
int byte_order,
ACE_CDR::Octet major_version,
ACE_CDR::Octet minor_version)
: start_ (buf, bufsiz),
do_byte_swap_ (byte_order != ACE_CDR_BYTE_ORDER),
good_bit_ (true),
major_version_ (major_version),
minor_version_ (minor_version),
char_translator_ (0),
wchar_translator_ (0)
{
this->start_.wr_ptr (bufsiz);
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (bufsiz);
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
ACE_InputCDR::ACE_InputCDR (size_t bufsiz,
int byte_order,
ACE_CDR::Octet major_version,
ACE_CDR::Octet minor_version)
: start_ (bufsiz),
do_byte_swap_ (byte_order != ACE_CDR_BYTE_ORDER),
good_bit_ (true),
major_version_ (major_version),
minor_version_ (minor_version),
char_translator_ (0),
wchar_translator_ (0)
{
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (bufsiz);
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
ACE_InputCDR::ACE_InputCDR (const ACE_Message_Block *data,
int byte_order,
ACE_CDR::Octet major_version,
ACE_CDR::Octet minor_version,
ACE_Lock* lock)
: start_ (0, ACE_Message_Block::MB_DATA, 0, 0, 0, lock),
good_bit_ (true),
major_version_ (major_version),
minor_version_ (minor_version),
char_translator_ (0),
wchar_translator_ (0)
{
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (this->start_.total_size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
this->reset (data, byte_order);
}
ACE_InputCDR::ACE_InputCDR (ACE_Data_Block *data,
ACE_Message_Block::Message_Flags flag,
int byte_order,
ACE_CDR::Octet major_version,
ACE_CDR::Octet minor_version)
: start_ (data, flag),
do_byte_swap_ (byte_order != ACE_CDR_BYTE_ORDER),
good_bit_ (true),
major_version_ (major_version),
minor_version_ (minor_version),
char_translator_ (0),
wchar_translator_ (0)
{
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (data->size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
ACE_InputCDR::ACE_InputCDR (ACE_Data_Block *data,
ACE_Message_Block::Message_Flags flag,
size_t rd_pos,
size_t wr_pos,
int byte_order,
ACE_CDR::Octet major_version,
ACE_CDR::Octet minor_version)
: start_ (data, flag),
do_byte_swap_ (byte_order != ACE_CDR_BYTE_ORDER),
good_bit_ (true),
major_version_ (major_version),
minor_version_ (minor_version),
char_translator_ (0),
wchar_translator_ (0)
{
// Set the read pointer
this->start_.rd_ptr (rd_pos);
// Set the write pointer after doing a sanity check.
char* wrpos = this->start_.base () + wr_pos;
if (this->start_.end () >= wrpos)
{
this->start_.wr_ptr (wr_pos);
}
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (data->size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
ACE_InputCDR::ACE_InputCDR (const ACE_InputCDR& rhs,
size_t size,
ACE_CDR::Long offset)
: start_ (rhs.start_,
ACE_CDR::MAX_ALIGNMENT),
do_byte_swap_ (rhs.do_byte_swap_),
good_bit_ (true),
major_version_ (rhs.major_version_),
minor_version_ (rhs.minor_version_),
char_translator_ (rhs.char_translator_),
wchar_translator_ (rhs.wchar_translator_)
{
#if !defined (ACE_LACKS_CDR_ALIGNMENT)
// Align the base pointer assuming that the incoming stream is also
// aligned the way we are aligned
char *incoming_start = ACE_ptr_align_binary (rhs.start_.base (),
ACE_CDR::MAX_ALIGNMENT);
#else
char *incoming_start = rhs.start_.base ();
#endif /* ACE_LACKS_CDR_ALIGNMENT */
const size_t newpos =
(rhs.start_.rd_ptr() - incoming_start) + offset;
if (newpos <= this->start_.space ()
&& newpos + size <= this->start_.space ())
{
this->start_.rd_ptr (newpos);
this->start_.wr_ptr (newpos + size);
}
else
{
this->good_bit_ = false;
}
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (this->start_.total_size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
ACE_InputCDR::ACE_InputCDR (const ACE_InputCDR& rhs,
size_t size)
: start_ (rhs.start_,
ACE_CDR::MAX_ALIGNMENT),
do_byte_swap_ (rhs.do_byte_swap_),
good_bit_ (true),
major_version_ (rhs.major_version_),
minor_version_ (rhs.minor_version_),
char_translator_ (rhs.char_translator_),
wchar_translator_ (rhs.wchar_translator_)
{
#if !defined (ACE_LACKS_CDR_ALIGNMENT)
// Align the base pointer assuming that the incoming stream is also
// aligned the way we are aligned
char *incoming_start = ACE_ptr_align_binary (rhs.start_.base (),
ACE_CDR::MAX_ALIGNMENT);
#else
char *incoming_start = rhs.start_.base ();
#endif /* ACE_LACKS_CDR_ALIGNMENT */
const size_t newpos =
rhs.start_.rd_ptr() - incoming_start;
if (newpos <= this->start_.space ()
&& newpos + size <= this->start_.space ())
{
// Notice that ACE_Message_Block::duplicate may leave the
// wr_ptr() with a higher value than what we actually want.
this->start_.rd_ptr (newpos);
this->start_.wr_ptr (newpos + size);
ACE_CDR::Octet byte_order = 0;
(void) this->read_octet (byte_order);
this->do_byte_swap_ = (byte_order != ACE_CDR_BYTE_ORDER);
}
else
{
this->good_bit_ = false;
}
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (this->start_.total_size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
ACE_InputCDR::ACE_InputCDR (const ACE_InputCDR& rhs)
: start_ (rhs.start_,
ACE_CDR::MAX_ALIGNMENT),
do_byte_swap_ (rhs.do_byte_swap_),
good_bit_ (true),
major_version_ (rhs.major_version_),
minor_version_ (rhs.minor_version_),
char_translator_ (rhs.char_translator_),
wchar_translator_ (rhs.wchar_translator_)
{
#if !defined (ACE_LACKS_CDR_ALIGNMENT)
char *buf = ACE_ptr_align_binary (rhs.start_.base (),
ACE_CDR::MAX_ALIGNMENT);
#else
char *buf = rhs.start_.base ();
#endif /* ACE_LACKS_CDR_ALIGNMENT */
size_t rd_offset = rhs.start_.rd_ptr () - buf;
size_t wr_offset = rhs.start_.wr_ptr () - buf;
this->start_.rd_ptr (rd_offset);
this->start_.wr_ptr (wr_offset);
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (this->start_.total_size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
ACE_InputCDR::ACE_InputCDR (ACE_InputCDR::Transfer_Contents x)
: start_ (x.rhs_.start_.data_block ()),
do_byte_swap_ (x.rhs_.do_byte_swap_),
good_bit_ (true),
major_version_ (x.rhs_.major_version_),
minor_version_ (x.rhs_.minor_version_),
char_translator_ (x.rhs_.char_translator_),
wchar_translator_ (x.rhs_.wchar_translator_)
{
this->start_.rd_ptr (x.rhs_.start_.rd_ptr ());
this->start_.wr_ptr (x.rhs_.start_.wr_ptr ());
ACE_Data_Block* db = this->start_.data_block ()->clone_nocopy ();
(void) x.rhs_.start_.replace_data_block (db);
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (this->start_.total_size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
ACE_InputCDR&
ACE_InputCDR::operator= (const ACE_InputCDR& rhs)
{
if (this != &rhs)
{
this->start_.data_block (rhs.start_.data_block ()->duplicate ());
this->start_.rd_ptr (rhs.start_.rd_ptr ());
this->start_.wr_ptr (rhs.start_.wr_ptr ());
this->do_byte_swap_ = rhs.do_byte_swap_;
this->good_bit_ = true;
this->char_translator_ = rhs.char_translator_;
this->major_version_ = rhs.major_version_;
this->minor_version_ = rhs.minor_version_;
}
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
this->monitor_->receive (this->start_.total_size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
return *this;
}
ACE_InputCDR::ACE_InputCDR (const ACE_OutputCDR& rhs,
ACE_Allocator* buffer_allocator,
ACE_Allocator* data_block_allocator,
ACE_Allocator* message_block_allocator)
: start_ (rhs.total_length () + ACE_CDR::MAX_ALIGNMENT,
ACE_Message_Block::MB_DATA,
0,
0,
buffer_allocator,
0,
0,
ACE_Time_Value::zero,
ACE_Time_Value::max_time,
data_block_allocator,
message_block_allocator),
do_byte_swap_ (rhs.do_byte_swap_),
good_bit_ (true),
major_version_ (rhs.major_version_),
minor_version_ (rhs.minor_version_),
char_translator_ (rhs.char_translator_),
wchar_translator_ (rhs.wchar_translator_)
{
ACE_CDR::mb_align (&this->start_);
for (const ACE_Message_Block *i = rhs.begin ();
i != rhs.end ();
i = i->cont ())
{
this->start_.copy (i->rd_ptr (), i->length ());
}
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
ACE_NEW (this->monitor_,
ACE::Monitor_Control::Size_Monitor);
this->monitor_->receive (this->start_.total_size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
ACE_CDR::Boolean
ACE_InputCDR::skip_wchar (void)
{
if (static_cast<ACE_CDR::Short> (major_version_) == 1
&& static_cast<ACE_CDR::Short> (minor_version_) == 2)
{
ACE_CDR::Octet len;
if (this->read_1 (&len))
return this->skip_bytes (static_cast<size_t> (len));
}
else
{
ACE_CDR::WChar x;
void * const temp = &x;
if (ACE_OutputCDR::wchar_maxbytes_ == 2)
return this->read_2 (reinterpret_cast<ACE_CDR::UShort *> (temp));
else
return this->read_4 (reinterpret_cast<ACE_CDR::ULong *> (temp));
}
return (this->good_bit_ = false);
}
ACE_CDR::Boolean
ACE_InputCDR::read_wchar (ACE_CDR::WChar& x)
{
if (this->wchar_translator_ != 0)
{
this->good_bit_ = this->wchar_translator_->read_wchar (*this,x);
return this->good_bit_;
}
if (ACE_OutputCDR::wchar_maxbytes_ == 0)
{
errno = EACCES;
return (this->good_bit_ = false);
}
if (ACE_OutputCDR::wchar_maxbytes_ == sizeof (ACE_CDR::WChar))
{
if (static_cast<ACE_CDR::Short> (major_version_) == 1
&& static_cast<ACE_CDR::Short> (minor_version_) == 2)
{
ACE_CDR::Octet len;
if (this->read_1 (&len))
return this->read_array
(reinterpret_cast<ACE_CDR::Octet*> (&x),
static_cast<ACE_CDR::ULong> (len),
ACE_CDR::OCTET_ALIGN,
1);
else
return (this->good_bit_ = false);
}
void * const temp = &x;
if (sizeof (ACE_CDR::WChar) == 2)
return this->read_2 (reinterpret_cast<ACE_CDR::UShort *> (temp));
else
return this->read_4 (reinterpret_cast<ACE_CDR::ULong *> (temp));
}
if (static_cast<ACE_CDR::Short> (major_version_) == 1
&& static_cast<ACE_CDR::Short> (minor_version_) == 2)
{
ACE_CDR::Octet len;
if (this->read_1 (&len))
{
if (len == 2)
{
ACE_CDR::Short sx;
if (this->read_array
(reinterpret_cast<ACE_CDR::Octet*> (&sx),
static_cast<ACE_CDR::ULong> (len),
ACE_CDR::OCTET_ALIGN,
1))
{
x = static_cast<ACE_CDR::WChar> (sx);
return true;
}
}
else
{
ACE_CDR::Octet ox;
if (this->read_array
(reinterpret_cast<ACE_CDR::Octet*> (&ox),
static_cast<ACE_CDR::ULong> (len),
ACE_CDR::OCTET_ALIGN,
1))
{
x = static_cast<ACE_CDR::WChar> (ox);
return true;
}
}
}
}
else
{
if (ACE_OutputCDR::wchar_maxbytes_ == 2)
{
ACE_CDR::UShort sx;
if (this->read_2 (reinterpret_cast<ACE_CDR::UShort *> (&sx)))
{
x = static_cast<ACE_CDR::WChar> (sx);
return true;
}
}
else
{
ACE_CDR::Octet ox;
if (this->read_1 (&ox))
{
x = static_cast<ACE_CDR::WChar> (ox);
return true;
}
}
}
return (this->good_bit_ = false);
}
ACE_CDR::Boolean
ACE_InputCDR::read_string (ACE_CDR::Char *&x)
{
// @@ This is a slight violation of "Optimize for the common case",
// i.e. normally the translator will be 0, but OTOH the code is
// smaller and should be better for the cache ;-) ;-)
if (this->char_translator_ != 0)
{
this->good_bit_ = this->char_translator_->read_string (*this, x);
return this->good_bit_;
}
ACE_CDR::ULong len = 0;
if (!this->read_ulong (len))
return false;
// A check for the length being too great is done later in the
// call to read_char_array but we want to have it done before
// the memory is allocated.
if (len > 0 && len <= this->length())
{
ACE_NEW_RETURN (x,
ACE_CDR::Char[len],
0);
ACE_Auto_Basic_Array_Ptr<ACE_CDR::Char> safe_data (x);
if (this->read_char_array (x, len))
{
(void) safe_data.release ();
return true;
}
}
else if (len == 0)
{
// Convert any null strings to empty strings since empty
// strings can cause crashes. (See bug 58.)
ACE_NEW_RETURN (x,
ACE_CDR::Char[1],
0);
ACE_OS::strcpy (const_cast<char *&> (x), "");
return true;
}
x = 0;
return (this->good_bit_ = false);
}
ACE_CDR::Boolean
ACE_InputCDR::read_string (ACE_CString &x)
{
ACE_CDR::Char * data = 0;
if (this->read_string (data))
{
ACE_Auto_Basic_Array_Ptr<ACE_CDR::Char> safe_data (data);
x = data;
return true;
}
x = "";
return (this->good_bit_ = false);
}
ACE_CDR::Boolean
ACE_InputCDR::read_wstring (ACE_CDR::WChar*& x)
{
// @@ This is a slight violation of "Optimize for the common case",
// i.e. normally the translator will be 0, but OTOH the code is
// smaller and should be better for the cache ;-) ;-)
if (this->wchar_translator_ != 0)
{
this->good_bit_ = this->wchar_translator_->read_wstring (*this, x);
return this->good_bit_;
}
if (ACE_OutputCDR::wchar_maxbytes_ == 0)
{
errno = EACCES;
return (this->good_bit_ = false);
}
ACE_CDR::ULong len = 0;
if (!this->read_ulong (len))
{
return false;
}
// A check for the length being too great is done later in the
// call to read_char_array but we want to have it done before
// the memory is allocated.
if (len > 0 && len <= this->length ())
{
ACE_Auto_Basic_Array_Ptr<ACE_CDR::WChar> safe_data;
if (static_cast<ACE_CDR::Short> (this->major_version_) == 1
&& static_cast<ACE_CDR::Short> (this->minor_version_) == 2)
{
len /=
ACE_Utils::truncate_cast<ACE_CDR::ULong> (
ACE_OutputCDR::wchar_maxbytes_);
//allocating one extra for the null character needed by applications
ACE_NEW_RETURN (x,
ACE_CDR::WChar [len + 1],
false);
ACE_auto_ptr_reset (safe_data, x);
if (this->read_wchar_array (x, len))
{
//Null character used by applications to find the end of
//the wstring
//Is this okay with the GIOP 1.2 spec??
x[len] = '\x00';
(void) safe_data.release ();
return true;
}
}
else
{
ACE_NEW_RETURN (x,
ACE_CDR::WChar [len],
false);
ACE_auto_ptr_reset (safe_data, x);
if (this->read_wchar_array (x, len))
{
(void) safe_data.release ();
return true;
}
}
}
else if (len == 0)
{
// Convert any null strings to empty strings since empty
// strings can cause crashes. (See bug 58.)
ACE_NEW_RETURN (x,
ACE_CDR::WChar[1],
false);
x[0] = '\x00';
return true;
}
this->good_bit_ = false;
x = 0;
return false;
}
ACE_CDR::Boolean
ACE_InputCDR::read_array (void* x,
size_t size,
size_t align,
ACE_CDR::ULong length)
{
if (length == 0)
return true;
char* buf = 0;
if (this->adjust (size * length, align, buf) == 0)
{
#if defined (ACE_DISABLE_SWAP_ON_READ)
ACE_OS::memcpy (x, buf, size*length);
#else
if (!this->do_byte_swap_ || size == 1)
ACE_OS::memcpy (x, buf, size*length);
else
{
char *target = reinterpret_cast<char*> (x);
switch (size)
{
case 2:
ACE_CDR::swap_2_array (buf, target, length);
break;
case 4:
ACE_CDR::swap_4_array (buf, target, length);
break;
case 8:
ACE_CDR::swap_8_array (buf, target, length);
break;
case 16:
ACE_CDR::swap_16_array (buf, target, length);
break;
default:
// TODO: print something?
this->good_bit_ = false;
return false;
}
}
#endif /* ACE_DISABLE_SWAP_ON_READ */
return this->good_bit_;
}
return false;
}
ACE_CDR::Boolean
ACE_InputCDR::read_wchar_array_i (ACE_CDR::WChar* x,
ACE_CDR::ULong length)
{
if (length == 0)
return true;
char* buf = 0;
size_t const align = (ACE_OutputCDR::wchar_maxbytes_ == 2) ?
ACE_CDR::SHORT_ALIGN :
ACE_CDR::OCTET_ALIGN;
if (this->adjust (ACE_OutputCDR::wchar_maxbytes_ * length, align, buf) == 0)
{
if (ACE_OutputCDR::wchar_maxbytes_ == 2)
{
ACE_CDR::UShort *sb = reinterpret_cast<ACE_CDR::UShort *> (buf);
for (size_t i = 0; i < length; ++i)
#if defined (ACE_DISABLE_SWAP_ON_READ)
x[i] = static_cast<ACE_CDR::WChar> (sb[i]);
#else
if (!this->do_byte_swap_)
x[i] = static_cast<ACE_CDR::WChar> (sb[i]);
else
{
ACE_CDR::UShort sx;
ACE_CDR::swap_2 (&buf[i * 2], reinterpret_cast<char *> (&sx));
x[i] = static_cast<ACE_CDR::WChar> (sx);
}
#endif /* ACE_DISABLE_SWAP_ON_READ */
}
else
{
for (size_t i = 0; i < length; ++i)
x[i] = static_cast<ACE_CDR::Octet> (buf[i]);
}
return this->good_bit_;
}
return false;
}
ACE_CDR::Boolean
ACE_InputCDR::read_boolean_array (ACE_CDR::Boolean *x,
ACE_CDR::ULong length)
{
// Make sure the length of the array isn't greater than the length of
// the stream.
if (length > this->length ())
{
this->good_bit_ = false;
return false;
}
// It is hard to optimize this, the spec requires that on the wire
// booleans be represented as a byte with value 0 or 1, but in
// memory it is possible (though very unlikely) that a boolean has
// a non-zero value (different from 1).
// We resort to a simple loop.
for (ACE_CDR::ULong i = 0; i != length && this->good_bit_; ++i)
(void) this->read_boolean (x[i]);
return this->good_bit_;
}
ACE_CDR::Boolean
ACE_InputCDR::read_1 (ACE_CDR::Octet *x)
{
if (this->rd_ptr () < this->wr_ptr ())
{
*x = *reinterpret_cast<ACE_CDR::Octet*> (this->rd_ptr ());
this->start_.rd_ptr (1);
return true;
}
this->good_bit_ = false;
return false;
}
ACE_CDR::Boolean
ACE_InputCDR::read_2 (ACE_CDR::UShort *x)
{
char *buf = 0;
if (this->adjust (ACE_CDR::SHORT_SIZE, buf) == 0)
{
#if !defined (ACE_DISABLE_SWAP_ON_READ)
if (!this->do_byte_swap_)
*x = *reinterpret_cast<ACE_CDR::UShort*> (buf);
else
ACE_CDR::swap_2 (buf, reinterpret_cast<char*> (x));
#else
*x = *reinterpret_cast<ACE_CDR::UShort*> (buf);
#endif /* ACE_DISABLE_SWAP_ON_READ */
return true;
}
this->good_bit_ = false;
return false;
}
ACE_CDR::Boolean
ACE_InputCDR::read_4 (ACE_CDR::ULong *x)
{
char *buf = 0;
if (this->adjust (ACE_CDR::LONG_SIZE, buf) == 0)
{
#if !defined (ACE_DISABLE_SWAP_ON_READ)
if (!this->do_byte_swap_)
*x = *reinterpret_cast<ACE_CDR::ULong*> (buf);
else
ACE_CDR::swap_4 (buf, reinterpret_cast<char*> (x));
#else
*x = *reinterpret_cast<ACE_CDR::ULong*> (buf);
#endif /* ACE_DISABLE_SWAP_ON_READ */
return true;
}
this->good_bit_ = false;
return false;
}
ACE_CDR::Boolean
ACE_InputCDR::read_8 (ACE_CDR::ULongLong *x)
{
char *buf = 0;
if (this->adjust (ACE_CDR::LONGLONG_SIZE, buf) == 0)
{
#if !defined (ACE_DISABLE_SWAP_ON_READ)
if (!this->do_byte_swap_)
*x = *reinterpret_cast<ACE_CDR::ULongLong *> (buf);
else
ACE_CDR::swap_8 (buf, reinterpret_cast<char *> (x));
#else
*x = *reinterpret_cast<ACE_CDR::ULongLong *> (buf);
#endif /* ACE_DISABLE_SWAP_ON_READ */
return true;
}
this->good_bit_ = false;
return false;
}
ACE_CDR::Boolean
ACE_InputCDR::read_16 (ACE_CDR::LongDouble *x)
{
char *buf = 0;
if (this->adjust (ACE_CDR::LONGDOUBLE_SIZE,
ACE_CDR::LONGDOUBLE_ALIGN,
buf) == 0)
{
#if !defined (ACE_DISABLE_SWAP_ON_READ)
if (!this->do_byte_swap_)
*x = *reinterpret_cast<ACE_CDR::LongDouble *> (buf);
else
ACE_CDR::swap_16 (buf, reinterpret_cast<char*> (x));
#else
*x = *reinterpret_cast<ACE_CDR::LongDouble*> (buf);
#endif /* ACE_DISABLE_SWAP_ON_READ */
return true;
}
this->good_bit_ = false;
return false;
}
ACE_CDR::Boolean
ACE_InputCDR::skip_string (void)
{
ACE_CDR::ULong len = 0;
if (this->read_ulong (len))
{
if (static_cast<ACE_CDR::ULong> (~0u) == len)
{
// Indirection, next Long in stream is signed offset to actual
// string location (backwards in same stream from here).
ACE_CDR::Long offset = 0;
if (this->read_long (offset))
{
return true;
}
}
else if (this->rd_ptr () + len <= this->wr_ptr ())
{
this->rd_ptr (len);
return true;
}
this->good_bit_ = false;
}
return false;
}
ACE_CDR::Boolean
ACE_InputCDR::skip_wstring (void)
{
ACE_CDR::ULong len = 0;
ACE_CDR::Boolean continue_skipping = read_ulong (len);
if (continue_skipping && len != 0)
{
if (static_cast<ACE_CDR::Short> (this->major_version_) == 1
&& static_cast<ACE_CDR::Short> (this->minor_version_) == 2)
continue_skipping = this->skip_bytes ((size_t)len);
else
while (continue_skipping && len--)
continue_skipping = this->skip_wchar ();
}
return continue_skipping;
}
ACE_CDR::Boolean
ACE_InputCDR::skip_bytes (size_t len)
{
if (this->rd_ptr () + len <= this->wr_ptr ())
{
this->rd_ptr (len);
return true;
}
this->good_bit_ = false;
return false;
}
int
ACE_InputCDR::grow (size_t newsize)
{
if (ACE_CDR::grow (&this->start_, newsize) == -1)
return -1;
ACE_CDR::mb_align (&this->start_);
this->start_.wr_ptr (newsize);
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
if (newsize > this->start_.total_size ())
{
this->monitor_->receive (newsize);
}
#endif /* ACE_HAS_MONITOR_POINTS==1 */
return 0;
}
void
ACE_InputCDR::reset (const ACE_Message_Block* data,
int byte_order)
{
this->reset_byte_order (byte_order);
ACE_CDR::consolidate (&this->start_, data);
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
this->monitor_->receive (this->start_.total_size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
void
ACE_InputCDR::steal_from (ACE_InputCDR &cdr)
{
this->do_byte_swap_ = cdr.do_byte_swap_;
this->start_.data_block (cdr.start_.data_block ()->duplicate ());
// If the message block had a DONT_DELETE flags, just clear it off..
this->start_.clr_self_flags (ACE_Message_Block::DONT_DELETE);
this->start_.rd_ptr (cdr.start_.rd_ptr ());
this->start_.wr_ptr (cdr.start_.wr_ptr ());
this->major_version_ = cdr.major_version_;
this->minor_version_ = cdr.minor_version_;
cdr.reset_contents ();
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
this->monitor_->receive (this->start_.total_size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
void
ACE_InputCDR::exchange_data_blocks (ACE_InputCDR &cdr)
{
// Exchange byte orders
int const byte_order = cdr.do_byte_swap_;
cdr.do_byte_swap_ = this->do_byte_swap_;
this->do_byte_swap_ = byte_order;
// Get the destination read and write pointers
size_t const drd_pos =
cdr.start_.rd_ptr () - cdr.start_.base ();
size_t const dwr_pos =
cdr.start_.wr_ptr () - cdr.start_.base ();
// Get the source read & write pointers
size_t const srd_pos =
this->start_.rd_ptr () - this->start_.base ();
size_t const swr_pos =
this->start_.wr_ptr () - this->start_.base ();
// Exchange data_blocks. Dont release any of the data blocks.
ACE_Data_Block *dnb =
this->start_.replace_data_block (cdr.start_.data_block ());
cdr.start_.replace_data_block (dnb);
// Exchange the flags information..
ACE_Message_Block::Message_Flags df = cdr.start_.self_flags ();
ACE_Message_Block::Message_Flags sf = this->start_.self_flags ();
cdr.start_.clr_self_flags (df);
this->start_.clr_self_flags (sf);
cdr.start_.set_self_flags (sf);
this->start_.set_self_flags (df);
// Reset the <cdr> pointers to zero before it is set again.
cdr.start_.reset ();
this->start_.reset ();
// Set the read and write pointers.
if (cdr.start_.size () >= srd_pos)
{
cdr.start_.rd_ptr (srd_pos);
}
if (cdr.start_.size () >= swr_pos)
{
cdr.start_.wr_ptr (swr_pos);
}
if (this->start_.size () >= drd_pos)
{
this->start_.rd_ptr (drd_pos);
}
if (this->start_.size () >= dwr_pos)
{
this->start_.wr_ptr (dwr_pos);
}
ACE_CDR::Octet const dmajor = cdr.major_version_;
ACE_CDR::Octet const dminor = cdr.minor_version_;
// Exchange the GIOP version info
cdr.major_version_ = this->major_version_;
cdr.minor_version_ = this->minor_version_;
this->major_version_ = dmajor;
this->minor_version_ = dminor;
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
this->monitor_->receive (this->start_.total_size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
ACE_Data_Block *
ACE_InputCDR::clone_from (ACE_InputCDR &cdr)
{
this->do_byte_swap_ = cdr.do_byte_swap_;
// Get the read & write pointer positions in the incoming CDR
// streams
char *rd_ptr = cdr.start_.rd_ptr ();
char *wr_ptr = cdr.start_.wr_ptr ();
// Now reset the incoming CDR stream
cdr.start_.reset ();
// As we have reset the stream, try to align the underlying message
// block in the incoming stream
ACE_CDR::mb_align (&cdr.start_);
// Get the read & write pointer positions again
char *nrd_ptr = cdr.start_.rd_ptr ();
char *nwr_ptr = cdr.start_.wr_ptr ();
// Actual length of the stream is..
// @todo: This will look idiotic, but we dont seem to have much of a
// choice. How do we calculate the length of the incoming stream?
// Calling the method before calling reset () would give us the
// wrong length of the stream that needs copying. So we do the
// calulation like this
// (1) We get the <rd_ptr> and <wr_ptr> positions of the incoming
// stream.
// (2) Then we reset the <incoming> stream and then align it.
// (3) We get the <rd_ptr> and <wr_ptr> positions again. (Points #1
// thru #3 has been done already)
// (4) The difference in the <rd_ptr> and <wr_ptr> positions gives
// us the following, the actual bytes traversed by the <rd_ptr> and
// <wr_ptr>.
// (5) The bytes traversed by the <wr_ptr> is the actual length of
// the stream.
// Actual bytes traversed
size_t rd_bytes = rd_ptr - nrd_ptr;
size_t wr_bytes = wr_ptr - nwr_ptr;
ACE_CDR::mb_align (&this->start_);
ACE_Data_Block *db = this->start_.data_block ();
// If the size of the data that needs to be copied are higher than
// what is available, then do a reallocation.
if (wr_bytes > (this->start_.size () - ACE_CDR::MAX_ALIGNMENT))
{
// @@NOTE: We need to probably add another method to the message
// block interface to simplify this
db = cdr.start_.data_block ()->clone_nocopy ();
if (db == 0 || db->size ((wr_bytes) +
ACE_CDR::MAX_ALIGNMENT) == -1)
return 0;
// Replace our data block by using the incoming CDR stream.
db = this->start_.replace_data_block (db);
// Align the start_ message block.
ACE_CDR::mb_align (&this->start_);
// Clear the DONT_DELETE flag if it has been set
this->start_.clr_self_flags (ACE_Message_Block::DONT_DELETE);
}
// Now do the copy
(void) ACE_OS::memcpy (this->start_.wr_ptr (),
cdr.start_.rd_ptr (),
wr_bytes);
// Set the read pointer position to the same point as that was in
// <incoming> cdr.
this->start_.rd_ptr (rd_bytes);
this->start_.wr_ptr (wr_bytes);
// We have changed the read & write pointers for the incoming
// stream. Set them back to the positions that they were before..
cdr.start_.rd_ptr (rd_bytes);
cdr.start_.wr_ptr (wr_bytes);
this->major_version_ = cdr.major_version_;
this->minor_version_ = cdr.minor_version_;
// Copy the char/wchar translators
this->char_translator_ = cdr.char_translator_;
this->wchar_translator_ = cdr.wchar_translator_;
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
this->monitor_->receive (this->start_.total_size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
return db;
}
ACE_Message_Block*
ACE_InputCDR::steal_contents (void)
{
ACE_Message_Block* block = this->start_.clone ();
this->start_.data_block (block->data_block ()->clone ());
// If at all our message had a DONT_DELETE flag set, just clear it
// off.
this->start_.clr_self_flags (ACE_Message_Block::DONT_DELETE);
ACE_CDR::mb_align (&this->start_);
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
this->monitor_->receive (this->start_.total_size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
return block;
}
void
ACE_InputCDR::reset_contents (void)
{
this->start_.data_block (this->start_.data_block ()->clone_nocopy ());
// Reset the flags...
this->start_.clr_self_flags (ACE_Message_Block::DONT_DELETE);
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
this->monitor_->receive (this->start_.total_size ());
#endif /* ACE_HAS_MONITOR_POINTS==1 */
}
#if defined (ACE_HAS_MONITOR_POINTS) && (ACE_HAS_MONITOR_POINTS == 1)
void
ACE_InputCDR::register_monitor (const char *id)
{
this->monitor_->name (id);
this->monitor_->add_to_registry ();
}
void
ACE_InputCDR::unregister_monitor (void)
{
this->monitor_->remove_from_registry ();
}
#endif /* ACE_HAS_MONITOR_POINTS==1 */
// --------------------------------------------------------------
ACE_Char_Codeset_Translator::~ACE_Char_Codeset_Translator (void)
{
}
// --------------------------------------------------------------
ACE_WChar_Codeset_Translator::~ACE_WChar_Codeset_Translator (void)
{
}
// --------------------------------------------------------------
ACE_CDR::Boolean
operator<< (ACE_OutputCDR &os, const ACE_CString &x)
{
os.write_string (x);
return os.good_bit ();
}
ACE_CDR::Boolean
operator>> (ACE_InputCDR &is, ACE_CString &x)
{
is.read_string (x);
return is.good_bit ();
}
#if defined (GEN_OSTREAM_OPS)
std::ostream&
operator<< (std::ostream &os, ACE_OutputCDR::from_boolean x)
{
return (x.val_ ? os << "true" : os << "false");
}
std::ostream&
operator<< (std::ostream &os, ACE_OutputCDR::from_char x)
{
return os << '\'' << x.val_ << '\'';
}
std::ostream&
operator<< (std::ostream &os, ACE_OutputCDR::from_wchar x)
{
os.setf (ios_base::showbase);
os.setf (ios_base::hex, ios_base::basefield);
os << x.val_;
os.unsetf (ios_base::showbase);
os.setf (ios_base::dec, ios_base::basefield);
return os;
}
std::ostream&
operator<< (std::ostream &os, ACE_OutputCDR::from_octet x)
{
// Same format (hex) and no risk of overflow.
ACE_CDR::WChar w = static_cast<ACE_CDR::WChar> (x.val_);
ACE_OutputCDR::from_wchar tmp (w);
return os << tmp;
}
#endif /* GEN_OSTREAM_OPS */
ACE_END_VERSIONED_NAMESPACE_DECL
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