1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/base/port.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,63 @@
1.4 +// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +#ifndef BASE_PORT_H_
1.9 +#define BASE_PORT_H_
1.10 +
1.11 +#include <stdarg.h>
1.12 +#include "build/build_config.h"
1.13 +
1.14 +#ifdef COMPILER_MSVC
1.15 +#define GG_LONGLONG(x) x##I64
1.16 +#define GG_ULONGLONG(x) x##UI64
1.17 +#else
1.18 +#define GG_LONGLONG(x) x##LL
1.19 +#define GG_ULONGLONG(x) x##ULL
1.20 +#endif
1.21 +
1.22 +// Per C99 7.8.14, define __STDC_CONSTANT_MACROS before including <stdint.h>
1.23 +// to get the INTn_C and UINTn_C macros for integer constants. It's difficult
1.24 +// to guarantee any specific ordering of header includes, so it's difficult to
1.25 +// guarantee that the INTn_C macros can be defined by including <stdint.h> at
1.26 +// any specific point. Provide GG_INTn_C macros instead.
1.27 +
1.28 +#define GG_INT8_C(x) (x)
1.29 +#define GG_INT16_C(x) (x)
1.30 +#define GG_INT32_C(x) (x)
1.31 +#define GG_INT64_C(x) GG_LONGLONG(x)
1.32 +
1.33 +#define GG_UINT8_C(x) (x ## U)
1.34 +#define GG_UINT16_C(x) (x ## U)
1.35 +#define GG_UINT32_C(x) (x ## U)
1.36 +#define GG_UINT64_C(x) GG_ULONGLONG(x)
1.37 +
1.38 +namespace base {
1.39 +
1.40 +// It's possible for functions that use a va_list, such as StringPrintf, to
1.41 +// invalidate the data in it upon use. The fix is to make a copy of the
1.42 +// structure before using it and use that copy instead. va_copy is provided
1.43 +// for this purpose. MSVC does not provide va_copy, so define an
1.44 +// implementation here. It is not guaranteed that assignment is a copy, so the
1.45 +// StringUtil.VariableArgsFunc unit test tests this capability.
1.46 +
1.47 +// The C standard says that va_copy is a "macro", not a function. Trying to
1.48 +// use va_list as ref args to a function, as above, breaks some machines.
1.49 +# if defined(COMPILER_GCC)
1.50 +# define base_va_copy(_a, _b) ::va_copy(_a, _b)
1.51 +# elif defined(COMPILER_MSVC)
1.52 +# define base_va_copy(_a, _b) (_a = _b)
1.53 +# else
1.54 +# error No va_copy for your compiler
1.55 +# endif
1.56 +
1.57 +} // namespace base
1.58 +
1.59 +// Define an OS-neutral wrapper for shared library entry points
1.60 +#if defined(OS_WIN)
1.61 +#define API_CALL __stdcall
1.62 +#elif defined(OS_LINUX) || defined(OS_MACOSX)
1.63 +#define API_CALL
1.64 +#endif
1.65 +
1.66 +#endif // BASE_PORT_H_
