288 lines
8.8 KiB
C
288 lines
8.8 KiB
C
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef nscore_h___
|
|
#define nscore_h___
|
|
|
|
/**
|
|
* Make sure that we have the proper platform specific
|
|
* c++ definitions needed by nscore.h
|
|
*/
|
|
#ifndef _XPCOM_CONFIG_H_
|
|
#include "xpcom-config.h"
|
|
#endif
|
|
|
|
/* Definitions of functions and operators that allocate memory. */
|
|
#if !defined(XPCOM_GLUE) && !defined(NS_NO_XPCOM) && !defined(MOZ_NO_MOZALLOC)
|
|
# include "mozilla/mozalloc.h"
|
|
#endif
|
|
|
|
/**
|
|
* Incorporate the integer data types which XPCOM uses.
|
|
*/
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#include "mozilla/RefCountType.h"
|
|
|
|
/* Core XPCOM declarations. */
|
|
|
|
/*----------------------------------------------------------------------*/
|
|
/* Import/export defines */
|
|
|
|
#ifdef HAVE_VISIBILITY_HIDDEN_ATTRIBUTE
|
|
#define NS_VISIBILITY_HIDDEN __attribute__ ((visibility ("hidden")))
|
|
#else
|
|
#define NS_VISIBILITY_HIDDEN
|
|
#endif
|
|
|
|
#if defined(HAVE_VISIBILITY_ATTRIBUTE)
|
|
#define NS_VISIBILITY_DEFAULT __attribute__ ((visibility ("default")))
|
|
#elif defined(__SUNPRO_C) || defined(__SUNPRO_CC)
|
|
#define NS_VISIBILITY_DEFAULT __global
|
|
#else
|
|
#define NS_VISIBILITY_DEFAULT
|
|
#endif
|
|
|
|
#define NS_HIDDEN_(type) NS_VISIBILITY_HIDDEN type
|
|
#define NS_EXTERNAL_VIS_(type) NS_VISIBILITY_DEFAULT type
|
|
|
|
#define NS_HIDDEN NS_VISIBILITY_HIDDEN
|
|
#define NS_EXTERNAL_VIS NS_VISIBILITY_DEFAULT
|
|
|
|
/**
|
|
* Mark a function as using a potentially non-standard function calling
|
|
* convention. This can be used on functions that are called very
|
|
* frequently, to reduce the overhead of the function call. It is still worth
|
|
* using the macro for C++ functions which take no parameters since it allows
|
|
* passing |this| in a register.
|
|
*
|
|
* - Do not use this on any scriptable interface method since xptcall won't be
|
|
* aware of the different calling convention.
|
|
* - This must appear on the declaration, not the definition.
|
|
* - Adding this to a public function _will_ break binary compatibility.
|
|
* - This may be used on virtual functions but you must ensure it is applied
|
|
* to all implementations - the compiler will _not_ warn but it will crash.
|
|
* - This has no effect for functions which take a variable number of
|
|
* arguments.
|
|
* - __fastcall on windows should not be applied to class
|
|
* constructors/destructors - use the NS_CONSTRUCTOR_FASTCALL macro for
|
|
* constructors/destructors.
|
|
*
|
|
* Examples: int NS_FASTCALL func1(char *foo);
|
|
* NS_HIDDEN_(int) NS_FASTCALL func2(char *foo);
|
|
*/
|
|
|
|
#if defined(__i386__) && defined(__GNUC__)
|
|
#define NS_FASTCALL __attribute__ ((regparm (3), stdcall))
|
|
#define NS_CONSTRUCTOR_FASTCALL __attribute__ ((regparm (3), stdcall))
|
|
#elif defined(XP_WIN) && !defined(_WIN64)
|
|
#define NS_FASTCALL __fastcall
|
|
#define NS_CONSTRUCTOR_FASTCALL
|
|
#else
|
|
#define NS_FASTCALL
|
|
#define NS_CONSTRUCTOR_FASTCALL
|
|
#endif
|
|
|
|
#ifdef XP_WIN
|
|
|
|
#define NS_IMPORT __declspec(dllimport)
|
|
#define NS_IMPORT_(type) __declspec(dllimport) type __stdcall
|
|
#define NS_EXPORT __declspec(dllexport)
|
|
#define NS_EXPORT_(type) __declspec(dllexport) type __stdcall
|
|
#define NS_IMETHOD_(type) virtual type __stdcall
|
|
#define NS_IMETHODIMP_(type) type __stdcall
|
|
#define NS_METHOD_(type) type __stdcall
|
|
#define NS_CALLBACK_(_type, _name) _type (__stdcall * _name)
|
|
#ifndef _WIN64
|
|
// Win64 has only one calling convention. __stdcall will be ignored by the compiler.
|
|
#define NS_STDCALL __stdcall
|
|
#define NS_HAVE_STDCALL
|
|
#else
|
|
#define NS_STDCALL
|
|
#endif
|
|
#define NS_FROZENCALL __cdecl
|
|
|
|
#else
|
|
|
|
#define NS_IMPORT NS_EXTERNAL_VIS
|
|
#define NS_IMPORT_(type) NS_EXTERNAL_VIS_(type)
|
|
#define NS_EXPORT NS_EXTERNAL_VIS
|
|
#define NS_EXPORT_(type) NS_EXTERNAL_VIS_(type)
|
|
#define NS_IMETHOD_(type) virtual type
|
|
#define NS_IMETHODIMP_(type) type
|
|
#define NS_METHOD_(type) type
|
|
#define NS_CALLBACK_(_type, _name) _type (* _name)
|
|
#define NS_STDCALL
|
|
#define NS_FROZENCALL
|
|
|
|
#endif
|
|
|
|
/**
|
|
* Macro for creating typedefs for pointer-to-member types which are
|
|
* declared with stdcall. It is important to use this for any type which is
|
|
* declared as stdcall (i.e. NS_IMETHOD). For example, instead of writing:
|
|
*
|
|
* typedef nsresult (nsIFoo::*someType)(nsISupports* arg);
|
|
*
|
|
* you should write:
|
|
*
|
|
* typedef
|
|
* NS_STDCALL_FUNCPROTO(nsresult, someType, nsIFoo, typeFunc, (nsISupports*));
|
|
*
|
|
* where nsIFoo::typeFunc is any method declared as
|
|
* NS_IMETHOD typeFunc(nsISupports*);
|
|
*
|
|
* XXX this can be simplified to always use the non-typeof implementation
|
|
* when http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11893 is fixed.
|
|
*/
|
|
|
|
#ifdef __GNUC__
|
|
#define NS_STDCALL_FUNCPROTO(ret, name, class, func, args) \
|
|
typeof(&class::func) name
|
|
#else
|
|
#define NS_STDCALL_FUNCPROTO(ret, name, class, func, args) \
|
|
ret (NS_STDCALL class::*name) args
|
|
#endif
|
|
|
|
/**
|
|
* Deprecated declarations.
|
|
*/
|
|
#ifdef __GNUC__
|
|
# define MOZ_DEPRECATED __attribute__((deprecated))
|
|
#elif defined(_MSC_VER)
|
|
# define MOZ_DEPRECATED __declspec(deprecated)
|
|
#else
|
|
# define MOZ_DEPRECATED
|
|
#endif
|
|
|
|
/**
|
|
* Generic API modifiers which return the standard XPCOM nsresult type
|
|
*
|
|
* - NS_IMETHOD: use for in-class declarations and definitions.
|
|
* - NS_IMETHODIMP: use for out-of-class definitions.
|
|
* - NS_METHOD: usually used in conjunction with NS_CALLBACK.
|
|
* - NS_CALLBACK: used in some legacy situations. Best avoided.
|
|
*/
|
|
#define NS_IMETHOD NS_IMETHOD_(nsresult)
|
|
#define NS_IMETHODIMP NS_IMETHODIMP_(nsresult)
|
|
#define NS_METHOD NS_METHOD_(nsresult)
|
|
#define NS_CALLBACK(_name) NS_CALLBACK_(nsresult, _name)
|
|
|
|
/**
|
|
* Import/Export macros for XPCOM APIs
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
#define NS_EXTERN_C extern "C"
|
|
#else
|
|
#define NS_EXTERN_C
|
|
#endif
|
|
|
|
#define EXPORT_XPCOM_API(type) NS_EXTERN_C NS_EXPORT type NS_FROZENCALL
|
|
#define IMPORT_XPCOM_API(type) NS_EXTERN_C NS_IMPORT type NS_FROZENCALL
|
|
#define GLUE_XPCOM_API(type) NS_EXTERN_C NS_HIDDEN_(type) NS_FROZENCALL
|
|
|
|
#ifdef IMPL_LIBXUL
|
|
#define XPCOM_API(type) EXPORT_XPCOM_API(type)
|
|
#elif defined(XPCOM_GLUE)
|
|
#define XPCOM_API(type) GLUE_XPCOM_API(type)
|
|
#else
|
|
#define XPCOM_API(type) IMPORT_XPCOM_API(type)
|
|
#endif
|
|
|
|
#ifdef MOZILLA_INTERNAL_API
|
|
/*
|
|
The frozen string API has different definitions of nsAC?String
|
|
classes than the internal API. On systems that explicitly declare
|
|
dllexport symbols this is not a problem, but on ELF systems
|
|
internal symbols can accidentally "shine through"; we rename the
|
|
internal classes to avoid symbol conflicts.
|
|
*/
|
|
# define nsAString nsAString_internal
|
|
# define nsACString nsACString_internal
|
|
#endif
|
|
|
|
#if (defined(DEBUG) || defined(FORCE_BUILD_REFCNT_LOGGING))
|
|
/* Make refcnt logging part of the build. This doesn't mean that
|
|
* actual logging will occur (that requires a separate enable; see
|
|
* nsTraceRefcnt and nsISupportsImpl.h for more information). */
|
|
#define NS_BUILD_REFCNT_LOGGING
|
|
#endif
|
|
|
|
/* If NO_BUILD_REFCNT_LOGGING is defined then disable refcnt logging
|
|
* in the build. This overrides FORCE_BUILD_REFCNT_LOGGING. */
|
|
#if defined(NO_BUILD_REFCNT_LOGGING)
|
|
#undef NS_BUILD_REFCNT_LOGGING
|
|
#endif
|
|
|
|
/* If a program allocates memory for the lifetime of the app, it doesn't make
|
|
* sense to touch memory pages and free that memory at shutdown,
|
|
* unless we are running leak stats.
|
|
*/
|
|
#if defined(NS_BUILD_REFCNT_LOGGING) || defined(MOZ_VALGRIND) || defined(MOZ_ASAN)
|
|
#define NS_FREE_PERMANENT_DATA
|
|
#endif
|
|
|
|
/**
|
|
* NS_NO_VTABLE is emitted by xpidl in interface declarations whenever
|
|
* xpidl can determine that the interface can't contain a constructor.
|
|
* This results in some space savings and possible runtime savings -
|
|
* see bug 49416. We undefine it first, as xpidl-generated headers
|
|
* define it for IDL uses that don't include this file.
|
|
*/
|
|
#ifdef NS_NO_VTABLE
|
|
#undef NS_NO_VTABLE
|
|
#endif
|
|
#if defined(_MSC_VER)
|
|
#define NS_NO_VTABLE __declspec(novtable)
|
|
#else
|
|
#define NS_NO_VTABLE
|
|
#endif
|
|
|
|
|
|
/**
|
|
* Generic XPCOM result data type
|
|
*/
|
|
#include "nsError.h"
|
|
|
|
typedef MozRefCountType nsrefcnt;
|
|
|
|
/*
|
|
* Use these macros to do 64bit safe pointer conversions.
|
|
*/
|
|
|
|
#define NS_PTR_TO_INT32(x) ((int32_t)(intptr_t)(x))
|
|
#define NS_PTR_TO_UINT32(x) ((uint32_t)(intptr_t)(x))
|
|
#define NS_INT32_TO_PTR(x) ((void*)(intptr_t)(x))
|
|
|
|
/*
|
|
* Use NS_STRINGIFY to form a string literal from the value of a macro.
|
|
*/
|
|
#define NS_STRINGIFY_HELPER(x_) #x_
|
|
#define NS_STRINGIFY(x_) NS_STRINGIFY_HELPER(x_)
|
|
|
|
/*
|
|
* If we're being linked as standalone glue, we don't want a dynamic
|
|
* dependency on NSPR libs, so we skip the debug thread-safety
|
|
* checks, and we cannot use the THREADSAFE_ISUPPORTS macros.
|
|
*/
|
|
#if defined(XPCOM_GLUE) && !defined(XPCOM_GLUE_USE_NSPR)
|
|
#define XPCOM_GLUE_AVOID_NSPR
|
|
#endif
|
|
|
|
/*
|
|
* SEH exception macros.
|
|
*/
|
|
#ifdef HAVE_SEH_EXCEPTIONS
|
|
#define MOZ_SEH_TRY __try
|
|
#define MOZ_SEH_EXCEPT(expr) __except(expr)
|
|
#else
|
|
#define MOZ_SEH_TRY if(true)
|
|
#define MOZ_SEH_EXCEPT(expr) else
|
|
#endif
|
|
|
|
#endif /* nscore_h___ */
|