diff options
Diffstat (limited to 'ace/CDR_Stream.cpp')
| -rw-r--r-- | ace/CDR_Stream.cpp | 1394 |
1 files changed, 0 insertions, 1394 deletions
diff --git a/ace/CDR_Stream.cpp b/ace/CDR_Stream.cpp deleted file mode 100644 index 5bb165a0237..00000000000 --- a/ace/CDR_Stream.cpp +++ /dev/null @@ -1,1394 +0,0 @@ -// $Id$ - -#include "ace/CDR_Stream.h" -#include "ace/SString.h" - -#if !defined (__ACE_INLINE__) -# include "ace/CDR_Stream.i" -#endif /* ! __ACE_INLINE__ */ - -ACE_RCSID(ace, CDR_Stream, "$Id$") - - -// **************************************************************** - -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 : 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), - current_is_writable_ (1), - current_alignment_ (0), - do_byte_swap_ (byte_order != ACE_CDR_BYTE_ORDER), - good_bit_ (1), - 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_; -} - -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), - current_is_writable_ (1), - current_alignment_ (0), - do_byte_swap_ (byte_order != ACE_CDR_BYTE_ORDER), - good_bit_ (1), - 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_; -} - -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 ()), - current_is_writable_ (1), - current_alignment_ (0), - do_byte_swap_ (byte_order != ACE_CDR_BYTE_ORDER), - good_bit_ (1), - 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_; -} - -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 + ACE_CDR::MAX_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 newsize = - ACE_CDR::next_size (minsize); - - this->good_bit_ = 0; - ACE_Message_Block* tmp; - 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); - this->good_bit_ = 1; - - // The new block must start with the same alignment as the - // previous block finished. - ptr_arith_t tmpalign = - ptr_arith_t(tmp->rd_ptr ()) % ACE_CDR::MAX_ALIGNMENT; - ptr_arith_t curalign = - ptr_arith_t(this->current_alignment_) % ACE_CDR::MAX_ALIGNMENT; - int offset = curalign - tmpalign; - if (offset < 0) - offset += ACE_CDR::MAX_ALIGNMENT; - tmp->rd_ptr (offset); - tmp->wr_ptr (tmp->rd_ptr ()); - - // 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_ = 1; - - return this->adjust (size, align, buf); -} - -ACE_CDR::Boolean -ACE_OutputCDR::write_wchar (ACE_CDR::WChar x) -{ - if (ACE_static_cast (ACE_CDR::Short, major_version_) == 1 - && ACE_static_cast (ACE_CDR::Short, minor_version_) == 2) - { - ACE_CDR::Octet len = ACE_static_cast (ACE_CDR::Octet, sizeof(x)); - if (this->write_1 (&len)) - return this->write_octet_array (ACE_reinterpret_cast - (const ACE_CDR::Octet*, &x), - ACE_static_cast (ACE_CDR::ULong, len)); - } - else - if (this->wchar_translator_ == 0) - return this->write_2 (ACE_reinterpret_cast (const ACE_CDR::UShort*, &x)); - return this->wchar_translator_->write_wchar (*this, x); -} - -ACE_CDR::Boolean -ACE_OutputCDR::write_string (ACE_CDR::ULong len, - const 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 0; -} - -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 (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_static_cast (ACE_CDR::Short, this->major_version_) == 1 - && ACE_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. - if (this->write_ulong (sizeof(ACE_CDR::WChar)*len)) - { - 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 0; -} - -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 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, - length)) - { - return 0; - } - 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, - length)) - { - return 0; - } - continue; - } - - ACE_Message_Block* cont; - this->good_bit_ = 0; - ACE_NEW_RETURN (cont, - ACE_Message_Block (i->data_block ()->duplicate ()), - 0); - this->good_bit_ = 1; - - if (cont != 0) - { - 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_ = 0; - this->current_alignment_ = - (this->current_alignment_ + cont->length ()) % ACE_CDR::MAX_ALIGNMENT; - } - else - { - this->good_bit_ = 0; - return 0; - } - } - return 1; -} - -ACE_CDR::Boolean -ACE_OutputCDR::write_1 (const ACE_CDR::Octet *x) -{ - char *buf; - if (this->adjust (1, buf) == 0) - { - *ACE_reinterpret_cast(ACE_CDR::Octet*, buf) = *x; - return 1; - } - - return 0; -} - -ACE_CDR::Boolean -ACE_OutputCDR::write_2 (const ACE_CDR::UShort *x) -{ - char *buf; - if (this->adjust (ACE_CDR::SHORT_SIZE, buf) == 0) - { -#if !defined (ACE_ENABLE_SWAP_ON_WRITE) - *ACE_reinterpret_cast(ACE_CDR::UShort*,buf) = *x; - return 1; -#else - if (!this->do_byte_swap_) - { - *ACE_reinterpret_cast (ACE_CDR::UShort *, buf) = *x; - return 1; - } - else - { - ACE_CDR::swap_2 (ACE_reinterpret_cast (const char*, x), buf); - return 1; - } -#endif /* ACE_ENABLE_SWAP_ON_WRITE */ - } - - return 0; -} - -ACE_CDR::Boolean -ACE_OutputCDR::write_4 (const ACE_CDR::ULong *x) -{ - char *buf; - if (this->adjust (ACE_CDR::LONG_SIZE, buf) == 0) - { -#if !defined (ACE_ENABLE_SWAP_ON_WRITE) - *ACE_reinterpret_cast(ACE_CDR::ULong*,buf) = *x; - return 1; -#else - if (!this->do_byte_swap_) - { - *ACE_reinterpret_cast (ACE_CDR::ULong *, buf) = *x; - return 1; - } - else - { - ACE_CDR::swap_4 (ACE_reinterpret_cast (const char*, x), buf); - return 1; - } -#endif /* ACE_ENABLE_SWAP_ON_WRITE */ - } - - return 0; -} - -ACE_CDR::Boolean -ACE_OutputCDR::write_8 (const ACE_CDR::ULongLong *x) -{ - char *buf; - - if (this->adjust (ACE_CDR::LONGLONG_SIZE, buf) == 0) - { -#if defined (__arm__) - // Convert to Intel format (12345678 => 56781234) - const char *orig = ACE_reinterpret_cast (const char *, x); - char *target = buf; - register ACE_UINT32 x = - *ACE_reinterpret_cast (const ACE_UINT32 *, orig); - register ACE_UINT32 y = - *ACE_reinterpret_cast (const ACE_UINT32 *, orig + 4); - *ACE_reinterpret_cast (ACE_UINT32 *, target) = y; - *ACE_reinterpret_cast (ACE_UINT32 *, target + 4) = x; - return 1; -#else -# if !defined (ACE_ENABLE_SWAP_ON_WRITE) - *ACE_reinterpret_cast (ACE_CDR::ULongLong *,buf) = *x; - return 1; -# else - if (!this->do_byte_swap_) - { - *ACE_reinterpret_cast (ACE_CDR::ULongLong *, buf) = *x; - return 1; - } - else - { - ACE_CDR::swap_8 (ACE_reinterpret_cast (const char*, x), buf); - return 1; - } -# endif /* ACE_ENABLE_SWAP_ON_WRITE */ -#endif /* !__arm__ */ - } - - return 0; -} - -ACE_CDR::Boolean -ACE_OutputCDR::write_16 (const ACE_CDR::LongDouble *x) -{ - char* buf; - if (this->adjust (ACE_CDR::LONGDOUBLE_SIZE, - ACE_CDR::LONGDOUBLE_ALIGN, - buf) == 0) - { -#if !defined (ACE_ENABLE_SWAP_ON_WRITE) - *ACE_reinterpret_cast(ACE_CDR::LongDouble*,buf) = *x; - return 1; -#else - if (!this->do_byte_swap_) - { - *ACE_reinterpret_cast (ACE_CDR::LongDouble *, buf) = *x; - return 1; - } - else - { - ACE_CDR::swap_16 (ACE_reinterpret_cast (const char*, x), buf); - return 1; - } -#endif /* ACE_ENABLE_SWAP_ON_WRITE */ - } - - return 0; -} - -ACE_CDR::Boolean -ACE_OutputCDR::write_array (const void *x, - size_t size, - size_t align, - ACE_CDR::ULong length) -{ - if (length == 0) - return 1; - char *buf; - if (this->adjust (size * length, align, buf) == 0) - { -#if !defined (ACE_ENABLE_SWAP_ON_WRITE) - ACE_OS::memcpy (buf, x, size*length); - return 1; -#else - if (!this->do_byte_swap_ || size == 1) - { - ACE_OS::memcpy (buf, x, size*length); - return 1; - } - else - { - const char *source = ACE_reinterpret_cast (const char *, x); - switch (size) - { - case 2: - ACE_CDR::swap_2_array (source, buf, length); - return 1; - case 4: - ACE_CDR::swap_4_array (source, buf, length); - return 1; - case 8: - ACE_CDR::swap_8_array (source, buf, length); - return 1; - case 16: - ACE_CDR::swap_16_array (source, buf, length); - return 1; - default: - // TODO: print something? - this->good_bit_ = 0; - return 0; - } - } -#endif /* ACE_ENABLE_SWAP_ON_WRITE */ - } - this->good_bit_ = 0; - return 0; -} - -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 - // memoery it is possible (though very unlikely) that a boolean has - // a non-zero value (different from 1). - // We resort to a simple loop. - const ACE_CDR::Boolean* end = x + length; - for (const ACE_CDR::Boolean* i = x; i != end && this->good_bit (); ++i) - { - this->write_boolean (*i); - } - return this->good_bit (); -} - -// **************************************************************** - -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_ (1), - char_translator_ (0), - wchar_translator_ (0), - major_version_ (major_version), - minor_version_ (minor_version) -{ - this->start_.wr_ptr (bufsiz); -} - -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_ (1), - char_translator_ (0), - wchar_translator_ (0), - major_version_ (major_version), - minor_version_ (minor_version) -{ -} - -ACE_InputCDR::ACE_InputCDR (const ACE_Message_Block *data, - int byte_order, - ACE_CDR::Octet major_version, - ACE_CDR::Octet minor_version) - : start_ (), - good_bit_ (1), - char_translator_ (0), - wchar_translator_ (0), - major_version_ (major_version), - minor_version_ (minor_version) -{ - 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_ (1), - char_translator_ (0), - wchar_translator_ (0), - major_version_ (major_version), - minor_version_ (minor_version) -{ -} - -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_ (1), - char_translator_ (0), - wchar_translator_ (0), - major_version_ (major_version), - minor_version_ (minor_version) -{ - // 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); - } -} - - -ACE_InputCDR::ACE_InputCDR (const ACE_InputCDR& rhs, - size_t size, - ACE_CDR::Long offset) - : start_ (rhs.start_.data_block ()->duplicate ()), - do_byte_swap_ (rhs.do_byte_swap_), - good_bit_ (1), - char_translator_ (0), - wchar_translator_ (0), - major_version_ (rhs.major_version_), - minor_version_ (rhs.minor_version_) -{ - char* newpos = rhs.start_.rd_ptr() + offset; - if (this->start_.base () <= newpos - && newpos <= this->start_.end () - && newpos + size <= this->start_.end ()) - { - this->start_.rd_ptr (newpos); - this->start_.wr_ptr (newpos + size); - } - else - { - this->good_bit_ = 0; - } -} - -ACE_InputCDR::ACE_InputCDR (const ACE_InputCDR& rhs, - size_t size) - : start_ (rhs.start_.data_block ()->duplicate ()), - do_byte_swap_ (rhs.do_byte_swap_), - good_bit_ (1), - char_translator_ (0), - wchar_translator_ (0), - major_version_ (rhs.major_version_), - minor_version_ (rhs.minor_version_) -{ - char* newpos = rhs.start_.rd_ptr(); - if (this->start_.base () <= newpos - && newpos <= this->start_.end () - && newpos + size <= this->start_.end ()) - { - // Notice that ACE_Message_Block::duplicate may leave the - // wr_ptr() with a higher value that what we actually want. - this->start_.rd_ptr (newpos); - this->start_.wr_ptr (newpos + size); - - ACE_CDR::Octet byte_order; - this->read_octet (byte_order); - this->do_byte_swap_ = (byte_order != ACE_CDR_BYTE_ORDER); - } - else - { - this->good_bit_ = 0; - } -} - -ACE_InputCDR::ACE_InputCDR (const ACE_InputCDR& rhs) - : start_ (rhs.start_.data_block ()->duplicate ()), - do_byte_swap_ (rhs.do_byte_swap_), - good_bit_ (1), - char_translator_ (rhs.char_translator_), - wchar_translator_ (rhs.wchar_translator_), - major_version_ (rhs.major_version_), - minor_version_ (rhs.minor_version_) -{ - this->start_.rd_ptr (rhs.start_.rd_ptr ()); - this->start_.wr_ptr (rhs.start_.wr_ptr ()); -} - -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_ (1), - char_translator_ (x.rhs_.char_translator_), - wchar_translator_ (x.rhs_.wchar_translator_), - major_version_ (x.rhs_.major_version_), - minor_version_ (x.rhs_.minor_version_) -{ - 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); -} - -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_ = 1; - this->major_version_ = rhs.major_version_; - this->minor_version_ = rhs.minor_version_; - } - 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_ (1), - char_translator_ (0), - wchar_translator_ (0), - major_version_ (rhs.major_version_), - minor_version_ (rhs.minor_version_) -{ - 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 ()); -} - -ACE_CDR::Boolean -ACE_InputCDR::skip_wchar (void) -{ - if (ACE_static_cast (ACE_CDR::Short, major_version_) == 1 - && ACE_static_cast (ACE_CDR::Short, minor_version_) == 2) - { - ACE_CDR::Octet len; - if (this->read_1 (&len)) - return this->skip_bytes (ACE_static_cast (size_t, len)); - } - else - { - ACE_CDR::WChar x; - return this->read_2 (ACE_reinterpret_cast (ACE_CDR::UShort*,&x)); - } - - return 0; -} - -ACE_CDR::Boolean -ACE_InputCDR::read_wchar (ACE_CDR::WChar& x) -{ - if (ACE_static_cast (ACE_CDR::Short, major_version_) == 1 - && ACE_static_cast (ACE_CDR::Short, minor_version_) == 2) - { - ACE_CDR::Octet len; - - if (this->read_1 (&len)) - { - return this->read_octet_array ( - ACE_reinterpret_cast (ACE_CDR::Octet*, - &x), - ACE_static_cast (ACE_CDR::ULong, - len) - ); - } - } - else if (this->wchar_translator_ == 0) - { - return this->read_2 (ACE_reinterpret_cast (ACE_CDR::UShort*, - &x)); - } - - return this->wchar_translator_->read_wchar (*this, - x); -} - -ACE_CDR::Boolean -ACE_InputCDR::read_string (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_->read_string (*this, - x); - } - - ACE_CDR::ULong len; - - this->read_ulong (len); - // 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); - if (this->read_char_array (x, len)) - { - return 1; - } - - delete [] x; - } - 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 (ACE_const_cast (char *&, x), ""); - return 1; - } - - x = 0; - return 0; -} - -ACE_CDR::Boolean -ACE_InputCDR::read_string (ACE_CString &x) -{ - ACE_CDR::Char *data; - if (this->read_string (data)) - { - x = data; - delete [] data; - return 1; - } - - x = ""; - return 0; -} - -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) - return this->wchar_translator_->read_wstring (*this, x); - - ACE_CDR::ULong len; - this->read_ulong (len); - - // 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()) - { - - if (ACE_static_cast (ACE_CDR::Short, this->major_version_) == 1 - && ACE_static_cast (ACE_CDR::Short, this->minor_version_) == 2) - { - len = len / sizeof (ACE_CDR::WChar); - - //allocating one extra for the null character needed by applications - ACE_NEW_RETURN (x, - ACE_CDR::WChar [len + 1], - 0); - - 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'; - - return 1; - } - } - else - { - ACE_NEW_RETURN (x, - ACE_CDR::WChar [len], - 0); - - if (this->read_wchar_array (x, len)) - return 1; - } - - delete [] x; - } - 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], - 0); - ACE_OS::memcpy(x, "", 2); - return 1; - } - - x = 0; - return 0; -} - -ACE_CDR::Boolean -ACE_InputCDR::read_array (void* x, - size_t size, - size_t align, - ACE_CDR::ULong length) -{ - if (length == 0) - return 1; - char* buf; - - 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 = ACE_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_ = 0; - return 0; - } - } -#endif /* ACE_DISABLE_SWAP_ON_READ */ - return this->good_bit_; - } - return 0; -} - -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()) - return 0; - - // 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 - // memoery 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) - { - 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->end ()) - { - *x = *ACE_reinterpret_cast (ACE_CDR::Octet*,this->rd_ptr()); - this->start_.rd_ptr (1); - return 1; - } - - this->good_bit_ = 0; - return 0; -} - -ACE_CDR::Boolean -ACE_InputCDR::read_2 (ACE_CDR::UShort *x) -{ - char *buf; - if (this->adjust (ACE_CDR::SHORT_SIZE, buf) == 0) - { -#if !defined (ACE_DISABLE_SWAP_ON_READ) - if (!this->do_byte_swap_) - { - *x = *ACE_reinterpret_cast (ACE_CDR::UShort*, buf); - } - else - { - ACE_CDR::swap_2 (buf, ACE_reinterpret_cast (char*, x)); - } -#else - *x = *ACE_reinterpret_cast(ACE_CDR::UShort*,buf); -#endif /* ACE_DISABLE_SWAP_ON_READ */ - return 1; - } - return 0; -} - -ACE_CDR::Boolean -ACE_InputCDR::read_4 (ACE_CDR::ULong *x) -{ - char *buf; - if (this->adjust (ACE_CDR::LONG_SIZE, buf) == 0) - { -#if !defined (ACE_DISABLE_SWAP_ON_READ) - if (!this->do_byte_swap_) - { - *x = *ACE_reinterpret_cast (ACE_CDR::ULong*, buf); - } - else - { - ACE_CDR::swap_4 (buf, ACE_reinterpret_cast (char*, x)); - } -#else - *x = *ACE_reinterpret_cast(ACE_CDR::ULong*,buf); -#endif /* ACE_DISABLE_SWAP_ON_READ */ - return 1; - } - return 0; -} - -ACE_CDR::Boolean -ACE_InputCDR::read_8 (ACE_CDR::ULongLong *x) -{ - char *buf; - - if (this->adjust (ACE_CDR::LONGLONG_SIZE, buf) == 0) - { -#if !defined (ACE_DISABLE_SWAP_ON_READ) -# if defined (__arm__) - if (!this->do_byte_swap_) - { - // Convert from Intel format (12345678 => 56781234) - const char *orig = buf; - char *target = ACE_reinterpret_cast (char *, x); - register ACE_UINT32 x = - *ACE_reinterpret_cast (const ACE_UINT32 *, orig); - register ACE_UINT32 y = - *ACE_reinterpret_cast (const ACE_UINT32 *, orig + 4); - *ACE_reinterpret_cast (ACE_UINT32 *, target) = y; - *ACE_reinterpret_cast (ACE_UINT32 *, target + 4) = x; - } - else - { - // Convert from Sparc format (12345678 => 43218765) - const char *orig = buf; - char *target = ACE_reinterpret_cast (char *, x); - register ACE_UINT32 x = - *ACE_reinterpret_cast (const ACE_UINT32 *, orig); - register ACE_UINT32 y = - *ACE_reinterpret_cast (const ACE_UINT32 *, orig + 4); - x = (x << 24) | ((x & 0xff00) << 8) | ((x & 0xff0000) >> 8) | (x >> 24); - y = (y << 24) | ((y & 0xff00) << 8) | ((y & 0xff0000) >> 8) | (y >> 24); - *ACE_reinterpret_cast (ACE_UINT32 *, target) = x; - *ACE_reinterpret_cast (ACE_UINT32 *, target + 4) = y; - } -# else - if (!this->do_byte_swap_) - { - *x = *ACE_reinterpret_cast (ACE_CDR::ULongLong *, buf); - } - else - { - ACE_CDR::swap_8 (buf, ACE_reinterpret_cast (char *, x)); - } -# endif /* !__arm__ */ -#else - *x = *ACE_reinterpret_cast (ACE_CDR::ULongLong *, buf); -#endif /* ACE_DISABLE_SWAP_ON_READ */ - return 1; - } - - return 0; -} - -ACE_CDR::Boolean -ACE_InputCDR::read_16 (ACE_CDR::LongDouble *x) -{ - char *buf; - if (this->adjust (ACE_CDR::LONGLONG_SIZE, - ACE_CDR::LONGLONG_ALIGN, - buf) == 0) - { -#if !defined (ACE_DISABLE_SWAP_ON_READ) - if (!this->do_byte_swap_) - { - *x = *ACE_reinterpret_cast (ACE_CDR::LongDouble *, buf); - } - else - { - ACE_CDR::swap_16 (buf, ACE_reinterpret_cast (char*, x)); - } -#else - *x = *ACE_reinterpret_cast(ACE_CDR::LongDouble*,buf); -#endif /* ACE_DISABLE_SWAP_ON_READ */ - return 1; - } - return 0; -} - -ACE_CDR::Boolean -ACE_InputCDR::skip_string (void) -{ - ACE_CDR::ULong len; - if (this->read_ulong (len)) - { - if (this->rd_ptr () + len <= this->end ()) - { - this->rd_ptr (len); - return 1; - } - this->good_bit_ = 0; - } - - return 0; -} - -ACE_CDR::Boolean -ACE_InputCDR::skip_wstring (void) -{ - ACE_CDR::Boolean continue_skipping = 1; - ACE_CDR::ULong len; - - continue_skipping = read_ulong (len); - - if (continue_skipping != 0 && len != 0) - { - if (ACE_static_cast (ACE_CDR::Short, this->major_version_) == 1 - && ACE_static_cast (ACE_CDR::Short, this->minor_version_) == 2) - continue_skipping = this->skip_bytes ((size_t)len); - else - while (continue_skipping != 0 && 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->end ()) - { - this->rd_ptr (len); - return 1; - } - this->good_bit_ = 0; - return 0; -} - -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); - 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); -} - -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 (); -} - -void -ACE_InputCDR::exchange_data_blocks (ACE_InputCDR &cdr) -{ - // Exchange byte orders - int 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 drd_pos = - cdr.start_.rd_ptr () - cdr.start_.base (); - size_t dwr_pos = - cdr.start_.wr_ptr () - cdr.start_.base (); - - // Get the source read & write pointers - size_t srd_pos = - this->start_.rd_ptr () - this->start_.base (); - size_t 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 dmajor = cdr.major_version_; - ACE_CDR::Octet 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; -} - - -ACE_Data_Block * -ACE_InputCDR::clone_from (ACE_InputCDR &cdr) -{ - this->do_byte_swap_ = cdr.do_byte_swap_; - - // Replace our data block by using the incoming CDR stream. - ACE_Data_Block *db = - this->start_.replace_data_block (cdr.start_.data_block ()->clone_nocopy ()); - - // 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); - - // 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; - - // 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); - - 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_); - - 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); -} - -// -------------------------------------------------------------- - -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 (); -} |