--- parser3/src/include/pa_memory.h 2003/03/19 13:16:56 1.1.2.9.2.2 +++ parser3/src/include/pa_memory.h 2003/09/22 09:19:18 1.4 @@ -9,13 +9,12 @@ #ifndef PA_MEMORY_H #define PA_MEMORY_H -static const char* IDENT_MEMORY_H="$Date: 2003/03/19 13:16:56 $"; - -#define PA_DEBUG_REFERENCES +static const char* IDENT_MEMORY_H="$Date: 2003/09/22 09:19:18 $"; // include #include "pa_config_includes.h" + #include "gc.h" @@ -25,58 +24,98 @@ static const char* IDENT_MEMORY_H="$Date # include "libxml/tree.h" #endif +// defines + +//#define PA_DEBUG_GC_MEMORY + +#ifdef PA_DEBUG_GC_MEMORY +void* pa_gc_malloc(size_t size); +void* pa_gc_malloc_atomic(size_t size); +void* pa_gc_realloc(void* ptr, size_t size); +void pa_gc_free(void* ptr); +#else +inline void* pa_gc_malloc(size_t size) { return GC_MALLOC(size); } +inline void* pa_gc_malloc_atomic(size_t size) { return GC_MALLOC_ATOMIC(size); } +inline void* pa_gc_realloc(void* ptr, size_t size) { return GC_REALLOC(ptr, size); } +inline void pa_gc_free(void* ptr) { GC_FREE(ptr); } +#endif + + // forwards -void *pa_fail_alloc(const char *what, size_t size); +void *pa_fail_alloc(const char* what, size_t size); // inlines inline void *pa_malloc(size_t size) { - if(void *result=GC_MALLOC(size)) + if(void *result=pa_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)) + if(void *result=pa_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 helper_length=0) { + size_t known_length=(helper_length?helper_length:strlen(auto_variable_never_null)); + + size_t size=known_length+1; + if(char *result=static_cast(pa_gc_malloc_atomic(size))) { + memcpy(result, auto_variable_never_null, size); + result[known_length]=0; + return result; + } + + return static_cast(pa_fail_alloc("allocate clean", size)); +} + inline void pa_free(void *ptr) { - GC_FREE(ptr); + pa_gc_free(ptr); } inline void *pa_realloc(void *ptr, size_t size) { - if(void *result=GC_REALLOC(ptr, size)) + if(void *result=pa_gc_realloc(ptr, size)) return result; return pa_fail_alloc("reallocate to", size); } -#define DECLARE_OBJECT_PTR(name) \ - typedef name* name##Ptr - -#define DECLARE_SMART_PTR(name) \ - typedef name* name##Ptr - -// defines - -#define override -#define rethrow throw - -// memory - -inline void *operator new[] (size_t size) { +//{@ these operators are disabled, one should explicitely specify either new(UseGC) or new(PointerFreeGC) +inline void *operator new(size_t) { abort(); } // disabled +inline void *operator new[] (size_t) { abort(); } // disabled +//}@ + +#define UseGC ((int)1) +#define PointerFreeGC (true) + +//{@ Array-oriented +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); } -inline void operator delete (void *ptr) { - abort(); +//}@ + +//{@ Structure-oriented +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 { @@ -94,6 +133,9 @@ public: static void *malloc_atomic(size_t size) { return pa_malloc_atomic(size); } + static char *strdup(const char* auto_variable_never_null, size_t helper_length=0) { + return pa_strdup(auto_variable_never_null, helper_length); + } static void free(void *ptr) { pa_free(ptr); } @@ -103,14 +145,47 @@ public: private: // disabled from accidental use - /// use malloc instead [GC clears malloc result] + /// use malloc/malloc_atomic instead [GC clears result of those] static void *calloc(size_t size); }; +/// Those who want their destructor called during finalization, must derive from this class [also] +class PA_Cleaned { +#ifndef PA_DEBUG_DISABLE_GC + static void cleanup( void* obj, void* displ ) { + ((PA_Cleaned*) ((char*) obj + (ptrdiff_t) displ))->~PA_Cleaned(); + } + +public: + PA_Cleaned() { + GC_finalization_proc oldProc; + void* oldData; + void* base = GC_base( (void *) this ); + if (0 != base) { + // Don't call the debug version, since this is a real base address. + GC_register_finalizer_ignore_self( + base, (GC_finalization_proc)cleanup, (void*) ((char*) this - (char*) base), + &oldProc, &oldData ); + if (0 != oldProc) { + GC_register_finalizer_ignore_self( base, oldProc, oldData, 0, 0 ); + } + } + } + + virtual ~PA_Cleaned() { + GC_REGISTER_FINALIZER_IGNORE_SELF( GC_base(this), 0, 0, 0, 0 ); + } +#endif +}; + /// Base for all Parser classes typedef PA_Allocated PA_Object; -// convinient types +// defines + +#define override +#define rethrow throw + #endif