--- parser3/src/include/pa_pool.h	2001/03/22 16:38:19	1.41
+++ parser3/src/include/pa_pool.h	2001/10/18 13:09:37	1.63
@@ -5,16 +5,24 @@
 
 	Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
 
-	$Id: pa_pool.h,v 1.41 2001/03/22 16:38:19 paf Exp $
+	$Id: pa_pool.h,v 1.63 2001/10/18 13:09:37 parser Exp $
 */
 
 #ifndef PA_POOL_H
 #define PA_POOL_H
 
-#include <stddef.h>
+#include "pa_config_includes.h"
+
+#ifdef XML
+#include <XalanDOM/XalanDOMString.hpp>
+#include <util/TransService.hpp>
+#endif
+
+// forwards
 
 class Exception;
 class Temp_exception;
+class String;
 
 /** 
 	Pool mechanizm allows users not to free up allocated memory,
@@ -30,39 +38,53 @@ class Pool {
 	friend Temp_exception;
 public:
 
-	Pool() : fstorage(0), fcontext(0), ftag(0), fexception(0) {}
+	Pool(void *astorage);
 	~Pool();
 
-	void set_storage(void *astorage) { fstorage=astorage; }
 	void set_context(void *acontext) { fcontext=acontext; }
-	void set_tag(void *atag) { ftag=atag; }
-
-	void *storage() { return fstorage; }
 	void *context() { return fcontext; }
-	void *tag() { return ftag; }
 
-	/// current exception object of the pool
-	Exception& exception() const { return *fexception; }
+	void set_tag(void *atag) { ftag=atag; }
+	void *tag() { return ftag; }
 
 	/// allocates some bytes on pool
-	void *malloc(size_t size) {
-		return check(real_malloc(size), size);
+	void *malloc(size_t size/*, int place=0*/) {
+		return check(real_malloc(size/*, place*/), size);
 	}
 	/// allocates some bytes clearing them with zeros
 	void *calloc(size_t size) {
 		return check(real_calloc(size), size);
 	}
 
+	/// registers a routine to clean up non-pooled allocations
+	void register_cleanup(void (*cleanup) (void *), void *data) {
+		if(!real_register_cleanup(cleanup, data))
+			fail_register_cleanup();
+	}
+
+	/// current exception object of the pool
+	Exception& exception() const { return *fexception; }
+
+	/// resets transcoder if they change charset 
+	void set_charset(const String &charset);
+	/// returns current charset
+	const String& get_charset() { return *charset; }
+
 private:
 
 	void *fstorage;
 	void *fcontext;
 	void *ftag;
+	const String *charset;
 
-private: // implementation defined
-
-    void *real_malloc(size_t size);
+private: 
+	
+	//{
+	/// @name implementation defined
+    void *real_malloc(size_t size/*, int place*/);
     void *real_calloc(size_t size);
+	bool real_register_cleanup(void (*cleanup) (void *), void *data);
+	//}
 
 private: 
 
@@ -71,17 +93,20 @@ private:
 		if(ptr)
 			return ptr;
 
-		fail(size);
+		fail_alloc(size);
 
 		// never reached
 		return 0;
 	}
-	/// throws proper exception
-	void fail(size_t size) const;
+	/// throws allocation exception
+	void fail_alloc(size_t size) const;
+
+	/// throws register cleanup exception
+	void fail_register_cleanup() const;
 
 private: // exception handling
 
-	// exception replacement mechanism is 'protected' from direct usage
+	// exception replacement mechanism is 'private'zed from direct usage
 	// Temp_exception object enforces paired set/restore
 	Exception *set_exception(Exception *e){
 		Exception *r=fexception;
@@ -97,6 +122,29 @@ private:
 	// current request's exception object
 	Exception *fexception;
 
+#ifdef XML
+
+public:
+	/// converts Xalan string to char *
+	const char *transcode_cstr(const XalanDOMString& s);
+	/// converts Xalan string to parser String
+	String& transcode(const XalanDOMString& s);
+	/// converts char * to Xalan string
+	XalanDOMString& Pool::transcode_buf(const char *buf, size_t buf_size);
+	/// converts parser String to Xalan string
+	XalanDOMString& Pool::transcode(const String& s);
+
+private:
+
+	void set_charset(const char *new_scharset);
+	void update_transcoder();
+
+private:
+
+	XMLTranscoder *transcoder;
+
+#endif
+
 private: //disabled
 
 	// Pool(const Pool&) {}
@@ -112,26 +160,36 @@ private: //disabled
 */
 class Pooled {
 	// the pool i'm allocated on
-	Pool& fpool;
+	Pool *fpool;
 public:
 
 	/// the Pooled-sole: Pooled instances can be allocated in Pool rather then on heap
 	static void *operator new(size_t size, Pool& apool) { 
-		return apool.malloc(size);
+		return apool.malloc(size/*, 1*/);
 	}
 
-	Pooled(Pool& apool) : fpool(apool) {
-	}
+	Pooled(Pool& apool) : fpool(&apool) {}
 
 	/// my pool
-	Pool& pool() const { return fpool; }
+	Pool& pool() const { return *fpool; }
 
-	/// useful wrapper around pool
-	void *malloc(size_t size) const { return fpool.malloc(size); }
-	/// useful wrapper around pool
-	void *calloc(size_t size) const { return fpool.calloc(size); }
-	/// useful wrapper around pool
-	Exception& exception() const { return fpool.exception(); }
+	/** used for moving objects from one pool to another. 
+		in between object can have no pool and can not be used
+		@see SQL_Driver_manager
+	*/
+	void set_pool(Pool *apool) { fpool=apool; }
+
+	//{
+	/// @name useful wrapper around pool
+	void *malloc(size_t size) const { return fpool->malloc(size); }
+	void *calloc(size_t size) const { return fpool->calloc(size); }
+	void register_cleanup(void (*cleanup) (void *), void *data) { fpool->register_cleanup(cleanup, data); }
+	Exception& exception() const { return fpool->exception(); }
+#ifdef XML
+	const char *transcode_cstr(const XalanDOMString& s) { return fpool->transcode_cstr(s); }
+	String& transcode(const XalanDOMString& s) { return fpool->transcode(s); }
+#endif
+	//}
 };
 /// useful macro for creating objects on current Pooled object Pooled::pool()
 #define NEW new(pool())
@@ -194,8 +252,6 @@ public:
 #define PTHROW XTHROW(pool.exception())
 #define PCATCH(e) XCATCH(e)
 #define PEND_CATCH XEND_CATCH 
-
-#define RTHROW XTHROW(r.pool().exception())
 //@}
 
 #endif