/** @file
Parser: memory reference counting classes decls.
Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)
Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
*/
#ifndef PA_MEMORY_H
#define PA_MEMORY_H
static const char* IDENT_MEMORY_H="$Date: 2003/03/24 17:00:49 $";
#define PA_DEBUG_REFERENCES
// include
#include "pa_config_includes.h"
#include "gc.h"
#ifdef XML
# include "gdome.h"
// for xmlChar
# include "libxml/tree.h"
#endif
// forwards
void *pa_fail_alloc(const char* what, size_t size);
// inlines
inline void *pa_malloc(size_t size) {
if(void *result=GC_MALLOC(size))
return result;
return pa_fail_alloc("allocate", size);
}
inline void *pa_malloc_atomic(size_t size) {
if(void *result=GC_MALLOC_ATOMIC(size))
return result;
return pa_fail_alloc("allocate clean", size);
}
/// @a length may be null, which mean "autocalc it"
inline char *pa_strdup(const char* auto_variable_never_null, size_t length=0) {
if(!length)
length=strlen(auto_variable_never_null);
size_t size=length+1;
if(char *result=static_cast<char*>(GC_MALLOC_ATOMIC(size))) {
memcpy(result, auto_variable_never_null, length);
result[length]=0;
return result;
}
return static_cast<char*>(pa_fail_alloc("allocate clean", size));
}
char* pa_format_integer(int value);
inline void pa_free(void *ptr) {
GC_FREE(ptr);
}
inline void *pa_realloc(void *ptr, size_t size) {
if(void *result=GC_REALLOC(ptr, size))
return result;
return pa_fail_alloc("reallocate to", size);
}
//{@ these operators are disabled, one should explicitely specify either new(UseGC) or new(PointerFreeGC)
inline void *operator new(size_t size) { abort(); } // disabled
inline void operator delete (void *ptr) { abort(); } // disabled
inline void *operator new[] (size_t size) { abort(); } // disabled
//}@
#define UseGC ((int)1)
#define PointerFreeGC (true)
inline void *operator new[] (size_t size, int) { // UseGC
return pa_malloc(size);
}
inline void *operator new[] (size_t size, bool) { // PointerFreeGC
return pa_malloc_atomic(size);
}
inline void operator delete[] (void *ptr) {
pa_free(ptr);
}
/// memory allocation/dallocation goes via pa_malloc/pa_free.
class PA_Allocated {
public:
/// the sole: instances allocated using our functions
static void *operator new(size_t size) {
return pa_malloc(size);
}
static void operator delete(void *ptr) {
pa_free(ptr);
}
static void *malloc(size_t size) {
return pa_malloc(size);
}
static void *malloc_atomic(size_t size) {
return pa_malloc_atomic(size);
}
static char *strdup(const char* auto_variable_never_null, size_t length=0) {
return pa_strdup(auto_variable_never_null, length);
}
static void free(void *ptr) {
pa_free(ptr);
}
static void *realloc(void *ptr, size_t size) {
return pa_realloc(ptr, size);
}
private: // disabled from accidental use
/// use malloc/malloc_atomic instead [GC clears result of those]
static void *calloc(size_t size);
};
/// Base for all Parser classes
typedef PA_Allocated PA_Object;
// defines
#define override
#define rethrow throw
#endif
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