michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /* This contains stubs and infrastructure to support code from v8 */
michael@0: 
michael@0: #ifndef V8_SUPPORT_H_
michael@0: #define V8_SUPPORT_H_
michael@0: 
michael@0: #if defined(_M_X64) || defined(__x86_64__)
michael@0: #define V8_HOST_ARCH_X64 1
michael@0: #elif defined(_M_IX86) || defined(__i386__) || defined(__i386)
michael@0: #define V8_HOST_ARCH_IA32 1
michael@0: #elif defined(__ARMEL__)
michael@0: #define V8_HOST_ARCH_ARM 1
michael@0: #else
michael@0: #warning Please add support for your architecture in chromium_types.h
michael@0: #endif
michael@0: 
michael@0: typedef int32_t Atomic32;
michael@0: 
michael@0: #if defined(V8_HOST_ARCH_X64) || defined(V8_HOST_ARCH_IA32) || defined(V8_HOST_ARCH_ARM)
michael@0: inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
michael@0:   *ptr = value;
michael@0: }
michael@0: #endif
michael@0: 
michael@0: 
michael@0: const int kMaxInt = 0x7FFFFFFF;
michael@0: const int kMinInt = -kMaxInt - 1;
michael@0: 
michael@0: // A macro to disallow the evil copy constructor and operator= functions
michael@0: // This should be used in the private: declarations for a class
michael@0: #define DISALLOW_COPY_AND_ASSIGN(TypeName)      \
michael@0:   TypeName(const TypeName&);                    \
michael@0:   void operator=(const TypeName&)
michael@0: 
michael@0: 
michael@0: // The USE(x) template is used to silence C++ compiler warnings
michael@0: // issued for (yet) unused variables (typically parameters).
michael@0: template <typename T>
michael@0: static inline void USE(T) { }
michael@0: 
michael@0: class Malloced {
michael@0: };
michael@0: 
michael@0: #endif // V8_SUPPORT_H_