--- parser3/src/main/pa_pool.C	2001/10/19 15:27:42	1.37
+++ parser3/src/main/pa_pool.C	2020/12/15 17:10:36	1.66
@@ -1,130 +1,57 @@
 /** @file
 	Parser: pool class.
 
-	Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
-	Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
-
-	$Id: pa_pool.C,v 1.37 2001/10/19 15:27:42 parser Exp $
+	Copyright (c) 2000-2020 Art. Lebedev Studio (http://www.artlebedev.com)
+	Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
 */
 
 #include "pa_pool.h"
 #include "pa_exception.h"
 #include "pa_common.h"
+#include "pa_sapi.h"
+#include "pa_charset.h"
 
-#ifdef XML
-#include <util/PlatformUtils.hpp>
-#endif
-
-Pool::Pool(void *astorage) : 
-	fstorage(astorage), fcontext(0), ftag(0)
-#ifdef XML
-	, transcoder(0) 
-#endif
-	{
-#ifdef XML
-	charset=new(*this) String(*this, "UTF-8");
-#else
-	charset=new(*this) String(*this, "");
-#endif
-}
+volatile const char * IDENT_PA_POOL_C="$Id: pa_pool.C,v 1.66 2020/12/15 17:10:36 moko Exp $" IDENT_PA_POOL_H;
+
+// Pool
+
+Pool::Pool(){}
 
+static void cleanup(Pool::Cleanup item, int) {
+	if(item.cleanup)
+		item.cleanup(item.data);
+}
 Pool::~Pool() {
-#ifdef XML
-	delete transcoder;
-#endif
-}
-
-void Pool::fail_alloc(size_t size) const {
-	throw Exception(0, 0,
-		0,
-		"failed to allocate %u bytes", size);
-}
-
-void Pool::fail_register_cleanup() const {
-	throw Exception(0, 0,
-		0,
-		"failed to register cleanup");
-}
-
-void Pool::set_charset(const String &new_charset) {
-	if(new_charset!=*charset) {
-#ifdef XML
-		delete transcoder;  transcoder=0; // flag "we need new transcoder"
-#endif
-		charset=&new_charset; // for this charset
-	}
-}
-
-#ifdef XML
-void Pool::update_transcoder() {
-	if(transcoder)
-		return;
-
-	XMLTransService::Codes resValue;
-	transcoder=XMLPlatformUtils::fgTransService->makeNewTranscoderFor(charset->cstr(), resValue, 60);
-	if(!transcoder)
-		throw Exception(0, 0,
-			charset,
-			"unsupported encoding");
-}
-
-const char *Pool::transcode_cstr(const XalanDOMString& s) { 
-	update_transcoder();
-
-	const unsigned int len=s.size()*2;
-	XMLByte* dest=(XMLByte *)malloc((len+1)*sizeof(XMLByte));
-	bool error=true;
-	try {
-		if(transcoder) {
-			unsigned int charsEaten;
-			unsigned int size=transcoder->transcodeTo(
-				s.c_str(), s.length(),
-				dest, len,
-				charsEaten,
-				XMLTranscoder::UnRep_RepChar //UnRep_Throw
-			);
-			dest[size]=0;
-			error=false;
-		}
-	} catch(XMLException& e) {
-		Exception::convert(*this, 0, e);
-	}
-	return (const char *)dest;
-}
-String& Pool::transcode(const XalanDOMString& s) { 
-	return *new(*this) String(*this, transcode_cstr(s)); 
-}
-
-std::auto_ptr<XalanDOMString> Pool::transcode_buf(const char *buf, size_t buf_size) { 
-	update_transcoder();
-
-	unsigned int dest_size=0;
-	XMLCh* dest=(XMLCh *)malloc((buf_size+1)*sizeof(XMLCh));
-	unsigned char *charSizes=(unsigned char *)malloc(buf_size*sizeof(unsigned char));
-	XalanDOMString *result;
-	try {
-		if(transcoder) {
-			unsigned int bytesEaten;
-			unsigned int dest_size=transcoder->transcodeFrom(
-				(unsigned char *)buf,
-				(const unsigned int)buf_size,
-				dest, (const unsigned int)buf_size,
-				bytesEaten,
-				charSizes
-			);
-			result=new XalanDOMString(dest, dest_size);
-		}
-	} catch(XMLException& e) {
-		Exception::convert(*this, 0, e);
-		result=0; //calm, compiler
-	}
-	
-	return std::auto_ptr<XalanDOMString>(result);
+	//__asm__("int3");
+	//_asm int 3;
+	//fprintf(stderr, "cleanups: %d\n", cleanups.size());
+	// cleanups first, because they use some object's memory pointers
+	cleanups.for_each(cleanup, 0);
+}
+
+void Pool::register_cleanup(void (*cleanup) (void *), void *data) {
+	cleanups+=Cleanup(cleanup, data);
 }
-std::auto_ptr<XalanDOMString> Pool::transcode(const String& s) { 
-	const char *cstr=s.cstr(String::UL_XML);
 
-	return transcode_buf(cstr, strlen(cstr)); 
+static void unregister_cleanup(Pool::Cleanup& item, void* cleanup_data) {
+	if(item.data==cleanup_data)
+		item.cleanup=0;
+}
+void Pool::unregister_cleanup(void *cleanup_data) {
+	cleanups.for_each_ref(::unregister_cleanup, cleanup_data);
+}
+
+// Pooled
+
+static void cleanup(void *data) {
+	static_cast<Pooled*>(data)->~Pooled();
 }
 
-#endif
+Pooled::Pooled(Pool& apool): fpool(apool) {
+	fpool.register_cleanup(cleanup, this);
+}
+
+/// Sole: this got called automatically from Pool::~Pool()
+Pooled::~Pooled() {
+	fpool.unregister_cleanup(this);
+}