cppexcept.h File Reference

#include "wine/asm.h"

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Classes
struct	__type_info
struct	__exception
struct	this_ptr_offsets
struct	__cxx_type_info
struct	__cxx_type_info_table
struct	__cxx_exception_type

Macros
#define	CXX_FRAME_MAGIC_VC6   0x19930520
#define	CXX_FRAME_MAGIC_VC7   0x19930521
#define	CXX_FRAME_MAGIC_VC8   0x19930522
#define	CXX_EXCEPTION   0xe06d7363
#define	FUNC_DESCR_SYNCHRONOUS   1 /* synchronous exceptions only (built with /EHs and /EHsc) */
#define	FUNC_DESCR_NOEXCEPT   4 /* noexcept function */
#define	CLASS_IS_SIMPLE_TYPE   1
#define	CLASS_HAS_VIRTUAL_BASE_CLASS   4
#define	DEFINE_CXX_TYPE_INFO(type)
#define	DEFINE_CXX_EXCEPTION(type, base_no, cl1, cl2, dtor)
#define	DEFINE_CXX_DATA(type, base_no, cl1, cl2, dtor)
#define	DEFINE_CXX_EXCEPTION0(name, dtor)    DEFINE_CXX_EXCEPTION(name, 0, NULL, NULL, dtor)
#define	DEFINE_CXX_DATA0(name, dtor)    DEFINE_CXX_DATA(name, 0, NULL, NULL, dtor)
#define	DEFINE_CXX_DATA1(name, cl1, dtor)    DEFINE_CXX_DATA(name, 1, cl1, NULL, dtor)
#define	DEFINE_CXX_DATA2(name, cl1, cl2, dtor)    DEFINE_CXX_DATA(name, 2, cl1, cl2, dtor)
#define	EXCEPTION_MANGLED_NAME   ".?AVexception@@"
#define	CREATE_EXCEPTION_OBJECT(exception_name)

Typedefs
typedef void(*	vtable_ptr) (void)
typedef struct __type_info	type_info
typedef struct __exception	exception
typedef void(*	cxx_copy_ctor) (void)
typedef struct __cxx_type_info	cxx_type_info
typedef struct __cxx_type_info_table	cxx_type_info_table
typedef DWORD(*	cxx_exc_custom_handler) (PEXCEPTION_RECORD, struct __cxx_exception_frame *, PCONTEXT, EXCEPTION_REGISTRATION_RECORD **, const struct __cxx_function_descr *, int nested_trylevel, EXCEPTION_REGISTRATION_RECORD *nested_frame, DWORD unknown3)
typedef struct __cxx_exception_type	cxx_exception_type

Functions
void WINAPI	_CxxThrowException (void *, const cxx_exception_type *)
int CDECL	_XcptFilter (NTSTATUS, PEXCEPTION_POINTERS)
static const char *	dbgstr_type_info (const type_info *info)
static void *	get_this_pointer (const this_ptr_offsets *off, void *object)

Macro Definition Documentation

CLASS_HAS_VIRTUAL_BASE_CLASS

#define CLASS_HAS_VIRTUAL_BASE_CLASS   4

Definition at line 84 of file cppexcept.h.

CLASS_IS_SIMPLE_TYPE

#define CLASS_IS_SIMPLE_TYPE   1

Definition at line 83 of file cppexcept.h.

CREATE_EXCEPTION_OBJECT

#define CREATE_EXCEPTION_OBJECT

(

exception_name

)

Definition at line 251 of file cppexcept.h.

CXX_EXCEPTION

#define CXX_EXCEPTION   0xe06d7363

Definition at line 29 of file cppexcept.h.

CXX_FRAME_MAGIC_VC6

#define CXX_FRAME_MAGIC_VC6   0x19930520

Definition at line 26 of file cppexcept.h.

CXX_FRAME_MAGIC_VC7

#define CXX_FRAME_MAGIC_VC7   0x19930521

Definition at line 27 of file cppexcept.h.

CXX_FRAME_MAGIC_VC8

#define CXX_FRAME_MAGIC_VC8   0x19930522

Definition at line 28 of file cppexcept.h.

DEFINE_CXX_DATA

#define DEFINE_CXX_DATA	(		type,
			base_no,
			cl1,
			cl2,
			dtor
	)

Value:

DEFINE_CXX_TYPE_INFO(type) \
DEFINE_CXX_EXCEPTION(type, base_no, cl1, cl2, dtor)

Definition at line 231 of file cppexcept.h.

DEFINE_CXX_DATA0

#define DEFINE_CXX_DATA0	(		name,
			dtor
	)		DEFINE_CXX_DATA(name, 0, NULL, NULL, dtor)

Definition at line 238 of file cppexcept.h.

DEFINE_CXX_DATA1

#define DEFINE_CXX_DATA1	(		name,
			cl1,
			dtor
	)		DEFINE_CXX_DATA(name, 1, cl1, NULL, dtor)

Definition at line 240 of file cppexcept.h.

DEFINE_CXX_DATA2

#define DEFINE_CXX_DATA2	(		name,
			cl1,
			cl2,
			dtor
	)		DEFINE_CXX_DATA(name, 2, cl1, cl2, dtor)

Definition at line 242 of file cppexcept.h.

DEFINE_CXX_EXCEPTION

#define DEFINE_CXX_EXCEPTION	(		type,
			base_no,
			cl1,
			cl2,
			dtor
	)

Value:

static const cxx_type_info_table type ## _cxx_type_table = { \
    base_no+1, \
    { \
        & type ## _cxx_type_info, \
        cl1, \
        cl2, \
    } \
}; \
\
static const cxx_exception_type type ## _exception_type = { \
    0, \
    (cxx_copy_ctor)THISCALL(dtor), \
    NULL, \
    & type ## _cxx_type_table \
};

Definition at line 168 of file cppexcept.h.

DEFINE_CXX_EXCEPTION0

#define DEFINE_CXX_EXCEPTION0	(		name,
			dtor
	)		DEFINE_CXX_EXCEPTION(name, 0, NULL, NULL, dtor)

Definition at line 235 of file cppexcept.h.

DEFINE_CXX_TYPE_INFO

#define DEFINE_CXX_TYPE_INFO

(

type

)

Value:

static const cxx_type_info type ## _cxx_type_info = { \
    0, \
    & type ##_type_info, \
    { 0, -1, 0 }, \
    sizeof(type), \
    (cxx_copy_ctor)THISCALL(type ##_copy_ctor) \
};

Definition at line 159 of file cppexcept.h.

EXCEPTION_MANGLED_NAME

#define EXCEPTION_MANGLED_NAME   ".?AVexception@@"

Definition at line 248 of file cppexcept.h.

FUNC_DESCR_NOEXCEPT

#define FUNC_DESCR_NOEXCEPT   4 /* noexcept function */

Definition at line 32 of file cppexcept.h.

FUNC_DESCR_SYNCHRONOUS

#define FUNC_DESCR_SYNCHRONOUS   1 /* synchronous exceptions only (built with /EHs and /EHsc) */

Definition at line 31 of file cppexcept.h.

Typedef Documentation

cxx_copy_ctor

typedef void(* cxx_copy_ctor) (void)

Definition at line 52 of file cppexcept.h.

cxx_exc_custom_handler

typedef DWORD(* cxx_exc_custom_handler) (PEXCEPTION_RECORD, struct __cxx_exception_frame *, PCONTEXT, EXCEPTION_REGISTRATION_RECORD **, const struct __cxx_function_descr *, int nested_trylevel, EXCEPTION_REGISTRATION_RECORD *nested_frame, DWORD unknown3)

Definition at line 104 of file cppexcept.h.

cxx_exception_type

typedef struct __cxx_exception_type cxx_exception_type

cxx_type_info

typedef struct __cxx_type_info cxx_type_info

cxx_type_info_table

typedef struct __cxx_type_info_table cxx_type_info_table

exception

typedef struct __exception exception

type_info

typedef struct __type_info type_info

vtable_ptr

typedef void(* vtable_ptr) (void)

Definition at line 34 of file cppexcept.h.

Function Documentation

_CxxThrowException()

void WINAPI _CxxThrowException	(	void *	object,
		const cxx_exception_type *	type
	)

Definition at line 1006 of file cpp.c.

{
    ULONG_PTR args[3];
 
    args[0] = CXX_FRAME_MAGIC_VC6;
    args[1] = (ULONG_PTR)object;
    args[2] = (ULONG_PTR)type;
    RaiseException( CXX_EXCEPTION, EH_NONCONTINUABLE, 3, args );
}

Referenced by __ExceptionPtrRethrow(), __RTCastToVoid(), __RTDynamicCast(), and __RTtypeid().

_XcptFilter()

int CDECL _XcptFilter	(	NTSTATUS	ex,
		PEXCEPTION_POINTERS	ptr
	)

Definition at line 278 of file except.c.

{
    TRACE("(%08x,%p)\n", ex, ptr);
    /* I assume ptr->ExceptionRecord->ExceptionCode is the same as ex */
    return msvcrt_exception_filter(ptr);
}

dbgstr_type_info()

static const char * dbgstr_type_info ( const type_info *  info )

inlinestatic

Definition at line 131 of file cppexcept.h.

{
    if (!info) return "{}";
    return wine_dbg_sprintf( "{vtable=%p name=%s (%s)}",
                             info->vtable, info->mangled, info->name ? info->name : "" );
}

get_this_pointer()

static void * get_this_pointer ( const this_ptr_offsets *  off, void *  object  )

inlinestatic

Definition at line 139 of file cppexcept.h.

{
    if (!object) return NULL;
 
    if (off->vbase_descr >= 0)
    {
        int *offset_ptr;
 
        /* move this ptr to vbase descriptor */
        object = (char *)object + off->vbase_descr;
        /* and fetch additional offset from vbase descriptor */
        offset_ptr = (int *)(*(char **)object + off->vbase_offset);
        object = (char *)object + *offset_ptr;
    }
 
    object = (char *)object + off->this_offset;
    return object;
}