Hi,
I'm using the SAX2XMLReader in an application that reuses the parser
as it reads in several thousand XHTML files. I'm experiencing very
fast parsing of the first few files but as it goes the time to parse
gets longer and longer. The files are all roughly the same size.
Initially files are parsed 60-200ms each. By the time about 800 files
have been processed parse time is as slow as 30000ms! I'm using a CVS
checkout from 29 May 2001. Some questions:
1. I'm using an EntityResolver to use my xhtml-transitional.dtd off
disk. In my SaxParser constructor I create a new LocalFileInputSource:
const XMLCh file[] =
{
// This says: xhtml1-transitional.dtd\0
chLatin_x, chLatin_h, chLatin_t, chLatin_m, chLatin_l, chDigit_1, chDash,
chLatin_t, chLatin_r, chLatin_a, chLatin_n, chLatin_s, chLatin_i,
chLatin_t, chLatin_i, chLatin_o, chLatin_n, chLatin_a, chLatin_l,
chPeriod, chLatin_d, chLatin_t, chLatin_d, chNull
};
dtdBuffer = new LocalFileInputSource (file);
My entity resolver does the following:
InputSource*
Sax2Tokenizer::resolveEntity (const XMLCh* const, // publicId
const XMLCh* const) // systemId
{
return dtdBuffer;
}
After the first parse I call parser->parse (memBuffer, true) to reuse
the data from the entity resolver. Is this the right way to do this?
I've been assuming that I own the dtdBuffer and am responsible for
deleting it. However, when I call 'delete dtdBuffer;' in my
destructor my application segfaults. Another observation is that my
code leaks very slowly as the parse-cycle runs. I've not used a
profiler yet but feel fairly confident that I've eliminated any of my
own leaks. Also, files with many entities take several orders of
magnitude longer to parse.
2. I noticed when using the DOMParser that there was a reset method to
be called between every parse. Am I missing something like this for
the SAX2 parser?
3. I get strange compiler messages when compiling my code that I don't
get when compiling the sample code (on Debian Linux 2.4.3-k7, gcc
2.95.4):
/usr/include/util/NameIdPool.c: In method
`NameIdPoolEnumerator<DTDElementDecl>::NameIdPoolEnumerator(const
NameIdPoolEnumerator<DTDElementDecl> &)':
/usr/include/validators/DTD/DTDGrammar.hpp:227: instantiated from here
/usr/include/util/NameIdPool.c:358: warning: base class `class
XMLEnumerator<DTDElementDecl>' should be explicitly initialized in the copy constructor
/usr/include/util/NameIdPool.c: In method
`NameIdPoolEnumerator<XMLNotationDecl>::NameIdPoolEnumerator(const
NameIdPoolEnumerator<XMLNotationDecl> &)':
/usr/include/validators/DTD/DTDGrammar.hpp:233: instantiated from here
/usr/include/util/NameIdPool.c:358: warning: base class `class
XMLEnumerator<XMLNotationDecl>' should be explicitly initialized in the copy
constructor
/usr/include/util/NameIdPool.c: In method
`NameIdPoolEnumerator<DTDEntityDecl>::NameIdPoolEnumerator(const
NameIdPoolEnumerator<DTDEntityDecl> &)':
/usr/include/internal/XMLScanner.hpp:947: instantiated from here
/usr/include/util/NameIdPool.c:358: warning: base class `class
XMLEnumerator<DTDEntityDecl>' should be explicitly initialized in the copy constructor
Any help/suggestions would be very helpful.
Thanks,
Jamu.
--
Jamu Kakar (Developer) Expressus Design Studio, Inc.
[EMAIL PROTECTED] 708-1641 Lonsdale Avenue
V: (604) 903-6994 North Vancouver, BC, V7M 2J5
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