--- parser3/src/include/pa_pool.h	2001/04/04 10:50:34	1.49
+++ parser3/src/include/pa_pool.h	2003/02/21 10:55:43	1.86.2.31
@@ -1,201 +1,55 @@
 /** @file
-	Parser: pool class decl.
+	Parser: Pool class and helper operator decls
 
-	Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
+	Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)
 
-	Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
-
-	$Id: pa_pool.h,v 1.49 2001/04/04 10:50:34 paf Exp $
+	Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
 */
 
 #ifndef PA_POOL_H
 #define PA_POOL_H
 
-#include <stddef.h>
+static const char* IDENT_POOL_H="$Date: 2003/02/21 10:55:43 $";
+
+// include
 
-class Exception;
-class Temp_exception;
+#include "pa_config_includes.h"
+#include "pa_array.h"
 
 /** 
 	Pool mechanizm allows users not to free up allocated memory,
 	leaving that problem to 'pools'.
-
-	Also holds Exception object, which can be temporary set using 
-	Temp_exception auto-object.
-
-	@see Pooled
 */
-
-class Pool {
-	friend Temp_exception;
+class Pool: public Array<CharPtr> {
 public:
-
-	Pool(void *astorage) : fstorage(astorage), fcontext(0), ftag(0), fexception(0) {}
-
-	void set_context(void *acontext) { fcontext=acontext; }
-	void *context() { return fcontext; }
-
-	void set_tag(void *atag) { ftag=atag; }
-	void *tag() { return ftag; }
-
-	/// current exception object of the pool
-	Exception& exception() const { return *fexception; }
-
-	/// allocates some bytes on pool
-	void *malloc(size_t size) {
-		return check(real_malloc(size), size);
-	}
-	/// allocates some bytes clearing them with zeros
-	void *calloc(size_t size) {
-		return check(real_calloc(size), size);
+	char *malloc(size_t size) {
+		CharPtr result=CharPtr((char *)Array<CharPtr>::malloc(size));
+		*this += result;
+		return result.get();
 	}
 
-private:
-
-	void *fstorage;
-	void *fcontext;
-	void *ftag;
+	char *copy(const char* buf, size_t size=0) {
+		if(!size)
+			size=strlen(buf)+1;
 
-private: // implementation defined
-
-    void *real_malloc(size_t size);
-    void *real_calloc(size_t size);
-
-private: 
-
-	/// checks whether mem allocated OK. throws exception otherwise
-	void *check(void *ptr, size_t size) {
-		if(ptr)
-			return ptr;
-
-		fail(size);
-
-		// never reached
-		return 0;
+		char *result=malloc(size);
+		memcpy(result, buf, size);
+		return result;
 	}
-	/// throws proper exception
-	void fail(size_t size) const;
-
-private: // exception handling
-
-	// exception replacement mechanism is 'private'zed from direct usage
-	// Temp_exception object enforces paired set/restore
-	Exception *set_exception(Exception *e){
-		Exception *r=fexception;
-		fexception=e;
-		return r;
-	}
-	void restore_exception(Exception *e) {
-		fexception=e;
-	}
-
-private:
-
-	// current request's exception object
-	Exception *fexception;
 
-private: //disabled
-
-	// Pool(const Pool&) {}
-	Pool& operator = (const Pool&) { return *this; }
-};
-
-/** 
-	Base for all classes that are allocated in 'pools'.
-
-	Holds Pool object. Contains useful wrappers to it's methods.
-
-	@see NEW, Temp_exception
-*/
-class Pooled {
-	// the pool i'm allocated on
-	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);
-	}
-
-	Pooled(Pool& apool) : fpool(&apool) {}
-
-	/// my pool
-	Pool& pool() const { return *fpool; }
-
-	/** 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; }
-
-	/// 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(); }
+	char *format_integer(int value);
 };
-/// useful macro for creating objects on current Pooled object Pooled::pool()
-#define NEW new(pool())
 
 /** 
-	Auto-object used for temporary changing Pool's exception().
-
-	Use by with these macros:
-	@code
-		TRY { 
-			// ... 
-			if(?) 
-				THROW(?); 
-			// ...
-		} CATCH(e) { 
-			// code, using e fields
-			// e.comment() 
-		}
-		END_CATCH
-	@endcode
+	Allocate something on pool, usage:
+		Something* something=new(pool) Something[count];
 
-	@see TRY, THROW
+	with NO corresponding 
+	operator delete[] (Pool& pool)
+	it's Pool's responsibility to free that up
 */
-class Temp_exception {
-	Pool& fpool;
-	Exception *saved_exception;
-public:
-	Temp_exception(Pool& apool, Exception& exception) : 
-		fpool(apool),
-		saved_exception(apool.set_exception(&exception)) {
-	}
-	~Temp_exception() { 
-		fpool.restore_exception(saved_exception); 
-	}
-};
-
-#define XTRY(pool) \
-	{ \
-		Exception temp_exception; \
-		Temp_exception le(pool, temp_exception); \
-		if(setjmp(temp_exception.mark)==0)
-
-#define XTHROW(exception) exception._throw
-#define XCATCH(e) \
-		else{ \
-			Exception& e=temp_exception;
-
-#define XEND_CATCH \
-		} \
-	}
-
-//@{
-/// @see Temp_exception 
-#define TRY XTRY(pool())
-#define THROW XTHROW(exception())
-#define CATCH(e) XCATCH(e)
-#define END_CATCH XEND_CATCH 
-
-#define PTRY XTRY(pool)
-#define PTHROW XTHROW(pool.exception())
-#define PCATCH(e) XCATCH(e)
-#define PEND_CATCH XEND_CATCH 
-//@}
+inline void *operator new[] (size_t size, Pool& pool) {
+	return pool.malloc(size);
+}
 
 #endif