1 files changed, 288 insertions, 0 deletions
diff --git a/xpcom/base/nscore.h b/xpcom/base/nscore.h
new file mode 100644
index 000000000..f6e73c6bc
--- /dev/null
+++ b/xpcom/base/nscore.h
@@ -0,0 +1,288 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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___ */