diff options
Diffstat (limited to 'libxerces-c/xercesc/internal/ReaderMgr.hpp')
| -rw-r--r-- | libxerces-c/xercesc/internal/ReaderMgr.hpp | 92 |
1 files changed, 79 insertions, 13 deletions
diff --git a/libxerces-c/xercesc/internal/ReaderMgr.hpp b/libxerces-c/xercesc/internal/ReaderMgr.hpp index f63b219..3209564 100644 --- a/libxerces-c/xercesc/internal/ReaderMgr.hpp +++ b/libxerces-c/xercesc/internal/ReaderMgr.hpp @@ -160,6 +160,12 @@ public : XMLReader* const reader , XMLEntityDecl* const entity ); + bool pushReaderAdoptEntity + ( + XMLReader* const reader + , XMLEntityDecl* const entity + , const bool adoptEntity = true + ); void reset(); @@ -209,15 +215,71 @@ private : ReaderMgr& operator=(const ReaderMgr&); // ----------------------------------------------------------------------- + // Private data types + // ----------------------------------------------------------------------- + class ReaderData : public XMemory + { + public : + // --------------------------------------------------------------------- + // Constructors and Destructor + // --------------------------------------------------------------------- + ReaderData + ( XMLReader* const reader + , XMLEntityDecl* const entity + , const bool adoptEntity + ); + + ~ReaderData(); + + // ---------------------------------------------------------------------- + // Getter methods + // ---------------------------------------------------------------------- + XMLReader* getReader() const; + XMLEntityDecl* getEntity() const; + bool getEntityAdopted() const; + + XMLEntityDecl* releaseEntity(); + + private : + // --------------------------------------------------------------------- + // Unimplemented constructors and operators + // --------------------------------------------------------------------- + ReaderData(); + ReaderData(const ReaderData&); + ReaderData& operator=(const ReaderData&); + + // --------------------------------------------------------------------- + // Private data members + // + // fReader + // This is the pointer to the reader object that must be destroyed + // when this object is destroyed. + // + // fEntity + // fEntityAdopted + // This is the pointer to the entity object that, if adopted, must + // be destroyed when this object is destroyed. + // + // Note that we need to keep up with which of the pushed readers + // are pushed entity values that are being spooled. This is done + // to avoid the problem of recursive definitions. + // --------------------------------------------------------------------- + XMLReader* fReader; + XMLEntityDecl* fEntity; + bool fEntityAdopted; + }; + + // ----------------------------------------------------------------------- // Private data members // - // fCurEntity - // This is the current top of stack entity. We pull it off the stack - // and store it here for efficiency. + // fCurReaderData + // This is the current top of the reader data stack. We pull it off + // the stack and store it here for efficiency. // // fCurReader - // This is the current top of stack reader. We pull it off the - // stack and store it here for efficiency. + // This is the reader of the current top of the reader data stack. + // It contains the same value as fCurReaderData->fReader or NULL, + // if fCurReaderData is NULL. We store it here for efficiency. // // fEntityHandler // This is the installed entity handler. Its installed via the @@ -225,10 +287,14 @@ private : // process of creating external entity readers. // // fEntityStack - // We need to keep up with which of the pushed readers are pushed - // entity values that are being spooled. This is done to avoid the - // problem of recursive definitions. This stack consists of refs to - // EntityDecl objects for the pushed entities. + // This is a storage of orphaned XMLEntityDecl objects. The + // popReader() function adds a reader manager-adopted entity object + // to this storage before passing its pointer to the constructor + // of the being thrown EndOfEntityException exception. This makes + // sure that the life-time of an entity exposed to the exception + // handlers is the same as the life-time of reader manager (and so + // normally the life-time of the scanner which embeds the reader + // manager). // // fNextReaderNum // This is the reader serial number value. Each new reader that is @@ -236,8 +302,8 @@ private : // us catch things like partial markup errors and such. // // fReaderStack - // This is the stack of reader references. We own all the readers - // and destroy them when they are used up. + // This is the stack of reader data references. We own all the + // entries and destroy them when they are used up. // // fThrowEOE // This flag controls whether we throw an exception when we hit an @@ -252,12 +318,12 @@ private : // fStandardUriConformant // This flag controls whether we force conformant URI // ----------------------------------------------------------------------- - XMLEntityDecl* fCurEntity; + ReaderData* fCurReaderData; XMLReader* fCurReader; XMLEntityHandler* fEntityHandler; RefStackOf<XMLEntityDecl>* fEntityStack; unsigned int fNextReaderNum; - RefStackOf<XMLReader>* fReaderStack; + RefStackOf<ReaderData>* fReaderStack; bool fThrowEOE; XMLReader::XMLVersion fXMLVersion; bool fStandardUriConformant; |