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Diffstat (limited to 'TAO/tao/Any.cpp')
| -rw-r--r-- | TAO/tao/Any.cpp | 740 |
1 files changed, 0 insertions, 740 deletions
diff --git a/TAO/tao/Any.cpp b/TAO/tao/Any.cpp deleted file mode 100644 index 7dde0159328..00000000000 --- a/TAO/tao/Any.cpp +++ /dev/null @@ -1,740 +0,0 @@ -// @ (#) $Id$ - -// Copyright 1994-1995 by Sun Microsystems Inc. -// All Rights Reserved -// -// ORB: Implementation of CORBA_Any -// -// This includes three constructors, a destructor, and a "replace" -// method for the "Any" data type. "Any" values pair a pointer to a -// data structure in the native binary representation (e.g. C struct) -// with a TypeCode that describes that data structure. -// -// The copy constructor and the destructor each use the TypeCode -// interpreter with specialized "visit" callback routines. The -// "visit" routines are used respectively to make "deep copies" and -// perform "deep frees" of the aritrary values as described by the -// "Any" value's typecode. -// -// Note that these "visit" routines are called directly, and they -// choose whether or not to use the TypeCode interpreter to examine -// constituents. In the simple cases, the "visit" routines can do -// their work without any further calls; only for constructed types is -// the interpreter's knowledge really required. -// -// THREADING NOTE: "Any" is a data structure which must be protected -// by external critical sections. Like simpler numeric types, "Any" -// instances are accessed and modified atomically. This -// implementation is reentrant, so that independent "Any" values may -// be manipulated concurrently when the underlying programming -// environment is itself reentrant. -// -// COM NOTE: Yes, this is a utility data type whose implementation is -// fully exposed. Factories for these are not normally used in C++. - -#include "tao/corba.h" - -#if !defined (__ACE_INLINE__) -# include "tao/Any.i" -#endif /* ! __ACE_INLINE__ */ - -CORBA::TypeCode_ptr -CORBA_Any::type (void) const -{ - return this->type_; -} - -// TAO doesn't give any guarantees if the value returned by value can be cast -// to the desired type. This is a deprecated routine and its use must be -// avoided. Use the >>= operators. -const void * -CORBA_Any::value (void) const -{ - if (this->any_owns_data_) - return this->cdr_; - else - return this->value_; -} - -// Default "Any" constructor -- initializes to nulls per the -// OMG C++ mapping. - -// NOTE: null (zero) typecode pointers are also treated as the null -// typecode ... - -CORBA_Any::CORBA_Any (void) - : type_ (CORBA::_tc_null), - value_ (0), - cdr_ (0), - any_owns_data_ (CORBA::B_FALSE), - refcount_ (1) -{ -} - -// The more common "Any" constructor has its own copy of a typecode, -// and either holds or "consumes" an arbitrary data value satisfying -// the normal binary interface rules. - -CORBA_Any::CORBA_Any (CORBA::TypeCode_ptr tc, - void *value, - CORBA::Boolean any_owns_data) - : type_ (tc), - value_ (value), - cdr_ (0), - any_owns_data_ (any_owns_data), - refcount_ (1) -{ - tc->AddRef (); - // if the Any owns the data, we encode the "value" into a CDR stream and - // store it. We also destroy the "value" since we own it. - if (this->any_owns_data_) - { - CORBA::Environment env; - TAO_OutputCDR stream; - - if (this->value_) - { - // encode the value - stream.encode (this->type_, this->value_, 0, env); - - // retrieve the start of the message block chain and save it - this->cdr_ = stream.begin ()->clone (); - } - } -} - -// Copy constructor for "Any". -CORBA_Any::CORBA_Any (const CORBA_Any &src) - : type_ (src.type_ != 0 ? src.type_ : CORBA::_tc_null), - value_ (0), - cdr_ (0), - any_owns_data_ (CORBA::B_TRUE), - refcount_ (1) -{ - CORBA::Environment env; - - this->type_->AddRef (); - - // does the source own its data? If not, then it is not in the message block - // form and must be encoded. Else we must simply duplicate the message block - if (src.any_owns_data_) - { - // the data was already encoded in "src". We simply duplicate it to avoid - // copies. - this->cdr_ = ACE_Message_Block::duplicate (src.cdr_); - } - else - { - // "src" did not own the data. So we must do the encoding ourselves - TAO_OutputCDR stream; - - stream.encode (this->type_, src.value_, 0, env); - // retrieve the start of the message block chain and duplicate it - this->cdr_ = stream.begin ()->clone (); - } -} - -// assignment operator -CORBA_Any & -CORBA_Any::operator= (const CORBA_Any &src) -{ - CORBA::Environment env; - - // check if it is a self assignment - if (this == &src) - { - this->AddRef (); - return *this; - } - - // decrement the refcount on the Message_Block we hold, it does not - // matter if we own the data or not, because we always own the - // message block (i.e. it is always cloned or duplicated. - ACE_Message_Block::release ((ACE_Message_Block *) this->cdr_); - - // if we own any previous data, deallocate it - if (this->any_owns_data_) - { - - if (this->value_) - { - DEEP_FREE (this->type_, this->value_, 0, env); - } - - if (this->type_) - this->type_->Release (); - } - - // Now copy the contents of the source to ourselves. - this->type_ = (src.type_) != 0 ? src.type_ : CORBA::_tc_null; - this->type_->AddRef (); - this->value_ = 0; - this->any_owns_data_ = CORBA::B_TRUE; - this->refcount_ = 1; - - // does the source own its data? If not, then it is not in the message block - // form and must be encoded. Else we must simply duplicate the message block - if (src.any_owns_data_) - { - this->cdr_ = ACE_Message_Block::duplicate (src.cdr_); - } - else - { - TAO_OutputCDR stream; - - stream.encode (this->type_, src.value_, 0, env); - // retrieve the start of the message block chain and duplicate it - this->cdr_ = stream.begin ()->clone (); - } - return *this; -} - -// Destructor for an "Any" deep-frees memory if needed. -// -// NOTE that the assertion below will fire on application programmer -// errors, such as using AddRef/Release out of sync with the true -// lifetime of an Any value allocated on the stack. BUT it involves -// changing the refcounting policy so that it's initialized to zero, -// not one ... which policy affects the whole source base, and not -// just this data type. Get to this later. - -CORBA_Any::~CORBA_Any (void) -{ - // assert (this->refcount_ == 0); - - // decrement the refcount on the Message_Block we hold, it does not - // matter if we own the data or not, because we always own the - // message block (i.e. it is always cloned or duplicated. - ACE_Message_Block::release (this->cdr_); - this->cdr_ = 0; - - CORBA::Environment env; - if (this->any_owns_data_) - { - // free up the storage for the value - if (this->value_) - { - DEEP_FREE (this->type_, this->value_, 0, env); - this->value_ = 0; - } - } - - if (this->type_) - this->type_->Release (); - -} - -// All-at-once replacement of the contents of an "Any." - -void -CORBA_Any::replace (CORBA::TypeCode_ptr tc, - const void *value, - CORBA::Boolean any_owns_data, - CORBA::Environment &env) -{ - // we may be replacing ourselves. So before releasing our typecode, we - // increment the refcount of the one that will be assigned to us. - tc->AddRef (); - - // decrement the refcount on the Message_Block we hold, it does not - // matter if we own the data or not, because we always own the - // message block (i.e. it is always cloned or duplicated. - ACE_Message_Block::release (this->cdr_); - - if (this->any_owns_data_) - { - if (this->value_) - { - DEEP_FREE (this->type_, this->value_, 0, env); - } - } - - // release our current typecode - if (this->type_ != 0) - this->type_->Release (); - - // assign new typecode - this->type_ = tc; - this->value_ = (void *) value; - this->any_owns_data_ = any_owns_data; - this->cdr_ = 0; - - // if the Any owns the data, we encode the "value" into a CDR stream and - // store it. We also destroy the "value" since we own it. - if (this->any_owns_data_) - { - CORBA::Environment env; - TAO_OutputCDR stream; - - stream.encode (tc, value, 0, env); - // retrieve the start of the message block chain and duplicate it - this->cdr_ = ACE_Message_Block::duplicate (stream.begin ()); - } -} - -// insertion of from_string -void -CORBA_Any::operator<<= (from_string s) -{ - // If the inserted string is bounded, we create a typecode. - static CORBA::Long _oc_string [] = - { - // CDR typecode octets - TAO_ENCAP_BYTE_ORDER, // native endian + padding; "tricky" - 0 // ... unbounded string to start with - }; - - CORBA::TypeCode_ptr tc = 0; - if (s.bound_ > 0) - { - // Bounded string. - _oc_string [1] = s.bound_; - ACE_NEW (tc, CORBA::TypeCode (CORBA::tk_string, - sizeof _oc_string, - (char *) &_oc_string, - CORBA::B_TRUE)); - } - else - tc = CORBA::_tc_string; // unbounded. - - CORBA::Environment env; - if (s.nocopy_) - this->replace (tc, new char* (s.val_), CORBA::B_TRUE, env); - else - // copying - this->replace (tc, new char* (CORBA::string_dup (s.val_)), - CORBA::B_TRUE, env); -} - -// Extraction: these are safe and hence we have to check that the -// typecode of the Any is equal to the one we are trying to extract -// into - -CORBA::Boolean -CORBA_Any::operator>>= (CORBA::Short &s) const -{ - CORBA::Environment env; - - if (this->type_->equal (CORBA::_tc_short, env)) - { - if (this->any_owns_data_) - { - TAO_InputCDR stream (this->cdr_); - return stream.read_short (s); - } - else - { - s = *(CORBA::Short *) this->value_; - return CORBA::B_TRUE; - } - } - else - return CORBA::B_FALSE; -} - -CORBA::Boolean -CORBA_Any::operator>>= (CORBA::UShort &s) const -{ - CORBA::Environment env; - - if (this->type_->equal (CORBA::_tc_ushort, env)) - { - if (this->any_owns_data_) - { - TAO_InputCDR stream (this->cdr_); - return stream.read_ushort (s); - } - else - { - s = *(CORBA::UShort *) this->value_; - return CORBA::B_TRUE; - } - } - else - return CORBA::B_FALSE; -} - -CORBA::Boolean -CORBA_Any::operator>>= (CORBA::Long &l) const -{ - CORBA::Environment env; - - if (this->type_->equal (CORBA::_tc_long, env)) - { - if (this->any_owns_data_) - { - TAO_InputCDR stream (this->cdr_); - return stream.read_long (l); - } - else - { - l = *(CORBA::Long *) this->value_; - return CORBA::B_TRUE; - } - } - else - return CORBA::B_FALSE; -} - -CORBA::Boolean -CORBA_Any::operator>>= (CORBA::ULong &l) const -{ - CORBA::Environment env; - - if (this->type_->equal (CORBA::_tc_ulong, env)) - { - if (this->any_owns_data_) - { - TAO_InputCDR stream (this->cdr_); - return stream.read_ulong (l); - } - else - { - l = *(CORBA::ULong *) this->value_; - return CORBA::B_TRUE; - } - } - else - return CORBA::B_FALSE; -} - -CORBA::Boolean -CORBA_Any::operator>>= (CORBA::Float &f) const -{ - CORBA::Environment env; - - if (this->type_->equal (CORBA::_tc_float, env)) - { - if (this->any_owns_data_) - { - TAO_InputCDR stream (this->cdr_); - return stream.read_float (f); - } - else - { - f = *(CORBA::Float *) this->value_; - return CORBA::B_TRUE; - } - } - else - return CORBA::B_FALSE; -} - -CORBA::Boolean -CORBA_Any::operator>>= (CORBA::Double &d) const -{ - CORBA::Environment env; - - if (this->type_->equal (CORBA::_tc_double, env)) - { - if (this->any_owns_data_) - { - TAO_InputCDR stream (this->cdr_); - return stream.read_double (d); - } - else - { - d = *(CORBA::Double *) this->value_; - return CORBA::B_TRUE; - } - } - else - return CORBA::B_FALSE; -} - -CORBA::Boolean -CORBA_Any::operator>>= (CORBA::Any &a) const -{ - CORBA::Environment env; - - if (this->type_->equal (CORBA::_tc_any, env)) - { - if (this->any_owns_data_) - { - TAO_InputCDR stream (this->cdr_); - // decode the CDR - return (stream.decode (CORBA::_tc_any, &a, 0, env) - == CORBA::TypeCode::TRAVERSE_CONTINUE) ? 1 : 0; - } - else - { - a = *(CORBA::Any *) this->value_; - return CORBA::B_TRUE; - } - } - else - return CORBA::B_FALSE; -} - -CORBA::Boolean -CORBA_Any::operator>>= (char *&s) const -{ - CORBA::Environment env; - - if (this->type_->equal (CORBA::_tc_string, env)) - { - if (this->any_owns_data_) - { - TAO_InputCDR stream (this->cdr_); - return stream.read_string (s); - } - else - { - s = *(char **) this->value_; - return CORBA::B_TRUE; - } - } - else - return CORBA::B_FALSE; -} - -// = extraction into the special types - -CORBA::Boolean -CORBA_Any::operator>>= (to_boolean b) const -{ - CORBA::Environment env; - - if (this->type_->equal (CORBA::_tc_boolean, env)) - { - if (this->any_owns_data_) - { - TAO_InputCDR stream ((ACE_Message_Block *) this->cdr_); - return stream.read_boolean (b.ref_); - } - else - { - b.ref_ = *(CORBA::Boolean *) this->value_; - return CORBA::B_TRUE; - } - } - else - return CORBA::B_FALSE; -} - -CORBA::Boolean -CORBA_Any::operator>>= (to_octet o) const -{ - CORBA::Environment env; - - if (this->type_->equal (CORBA::_tc_octet, env)) - { - if (this->any_owns_data_) - { - TAO_InputCDR stream ((ACE_Message_Block *) this->cdr_); - return stream.read_octet (o.ref_); - } - else - { - o.ref_ = *(CORBA::Octet *) this->value_; - return CORBA::B_TRUE; - } - } - else - return CORBA::B_FALSE; -} - -CORBA::Boolean -CORBA_Any::operator>>= (to_char c) const -{ - CORBA::Environment env; - - if (this->type_->equal (CORBA::_tc_char, env)) - { - if (this->any_owns_data_) - { - TAO_InputCDR stream ((ACE_Message_Block *) this->cdr_); - return stream.read_char (c.ref_); - } - else - { - c.ref_ = *(CORBA::Char *) this->value_; - return CORBA::B_TRUE; - } - } - else - return CORBA::B_FALSE; -} - -CORBA::Boolean -CORBA_Any::operator>>= (to_string s) const -{ - CORBA::Environment env; - - // The typecode must be equal. Since we do not readily have access - // to the typecode of the string into which we want to retrieve, we - // emulate the behavior of "equal" - if (this->type_->kind (env) == CORBA::tk_string) - { - CORBA::ULong bound = this->type_->length (env); - if (s.bound_ == bound) // bounds are same - { - if (this->any_owns_data_) - { - TAO_InputCDR stream ((ACE_Message_Block *) this->cdr_); - CORBA::Boolean flag = stream.read_string (s.val_); - return flag; - } - else - { - s.val_ = *(char **) this->value_; - return CORBA::B_TRUE; - } - } - } - - // Otherwise. - return CORBA::B_FALSE; -} - -CORBA::Boolean -CORBA_Any::operator>>= (to_object obj) const -{ - CORBA::Environment env; - - if (this->type_->equal (CORBA::_tc_Object, env)) - { - if (this->any_owns_data_) - { - TAO_InputCDR stream ((ACE_Message_Block *) this->cdr_); - CORBA::Boolean flag = (stream.decode (CORBA::_tc_Object, - &obj.ref_, 0, env) - == CORBA::TypeCode::TRAVERSE_CONTINUE) ? 1:0; - // we own this allocated value - // this->value_ = obj.ref_; - return flag; - } - else - { - obj.ref_ = *(CORBA::Object_ptr *) this->value_; - return CORBA::B_TRUE; - } - } - else - return CORBA::B_FALSE; -} - -CORBA::ULong -CORBA_Any::AddRef (void) -{ - return ++refcount_; -} - -CORBA::ULong -CORBA_Any::Release (void) -{ - { - ACE_ASSERT (this != 0); - - if (--refcount_ != 0) - return refcount_; - } - - delete this; - return 0; -} - -// ---------------------------------------------------------------------- -// Any_var type -// ---------------------------------------------------------------------- - -CORBA::Any_var & -CORBA_Any_var::operator= (CORBA::Any *p) -{ - if (this->ptr_ != p) - { - if (this->ptr_ != 0) - delete (this->ptr_); - - this->ptr_ = p; - } - return *this; -} - -CORBA::Any_var & -CORBA_Any_var::operator= (const CORBA::Any_var& r) -{ - if (this->ptr_ != 0) - delete (this->ptr_); - - this->ptr_ = new CORBA::Any (*r.ptr_); - return *this; -} - -// = Debugging method. - -// Prints the type and the value of the any value. Dumping is -// supported only for standard data types. - -void -CORBA_Any::dump (const CORBA::Any any_value) -{ - // Get the type. - CORBA::TypeCode_ptr type = any_value.type (); - - if (type == CORBA::_tc_null) - ACE_DEBUG ((LM_DEBUG,"Null\n")); - - else if (type == CORBA::_tc_void) - ACE_DEBUG ((LM_DEBUG,"Void\n")); - - else if (type == CORBA::_tc_short) - { - CORBA::Short s; - any_value >>= s; - ACE_DEBUG ((LM_DEBUG,"Short %d\n",s)); - } - else if (type == CORBA::_tc_long) - { - CORBA::Long l; - any_value >>= l; - ACE_DEBUG ((LM_DEBUG,"Long %d\n", l)); - } - else if (type == CORBA::_tc_ushort) - { - CORBA::UShort s; - any_value >>= s; - ACE_DEBUG ((LM_DEBUG,"UShort %d\n", s)); - } - else if (type == CORBA::_tc_ulong) - { - CORBA::ULong l; - any_value >>= l; - ACE_DEBUG ((LM_DEBUG,"ULong %d\n", l)); - } - else if (type == CORBA::_tc_float) - { - CORBA::Float f; - any_value >>= f; - ACE_DEBUG ((LM_DEBUG,"Float %f\n", f)); - } - else if (type == CORBA::_tc_double) - { - CORBA::Double d; - any_value >>= d; - ACE_DEBUG ((LM_DEBUG,"Double %f\n", d)); - } - else if (type == CORBA::_tc_boolean) - { - CORBA::Boolean b; - any_value >>= (to_boolean)b; - if (b == CORBA::B_TRUE) - ACE_DEBUG ((LM_DEBUG, "Boolean B_TRUE\n")); - else - ACE_DEBUG ((LM_DEBUG, "Boolean B_FALSE\n")); - } - else if (type == CORBA::_tc_char) - { - CORBA::Char ch; - any_value >>= to_char (ch); - ACE_DEBUG ((LM_DEBUG,"Char %c\n", ch)); - } - else if (type == CORBA::_tc_string) - { - CORBA::String str; - any_value >>= str; - ACE_DEBUG ((LM_DEBUG, "String %s\n", str)); - } - else - ACE_DEBUG ((LM_DEBUG, "TCKind %d\n", type->kind_)); -} |