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66 lines
3.1 KiB
66 lines
3.1 KiB
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef IPC_PARAM_TRAITS_MACROS_H_
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#define IPC_PARAM_TRAITS_MACROS_H_
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#include <string>
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// Traits generation for structs.
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#define IPC_STRUCT_TRAITS_BEGIN(struct_name) \
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namespace IPC { \
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template <> \
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struct IPC_MESSAGE_EXPORT ParamTraits<struct_name> { \
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typedef struct_name param_type; \
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static void Write(base::Pickle* m, const param_type& p); \
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static bool Read(const base::Pickle* m, \
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base::PickleIterator* iter, \
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param_type* p); \
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static void Log(const param_type& p, std::string* l); \
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}; \
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}
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#define IPC_STRUCT_TRAITS_MEMBER(name)
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#define IPC_STRUCT_TRAITS_PARENT(type)
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#define IPC_STRUCT_TRAITS_END()
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// Convenience macro for defining enumerated type traits for types which are
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// not range-checked by the IPC system. The author of the message handlers
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// is responsible for all validation. This macro should not need to be
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// subsequently redefined.
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#define IPC_ENUM_TRAITS(type) \
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IPC_ENUM_TRAITS_VALIDATE(type, true)
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// Convenience macro for defining enumerated type traits for types which are
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// range-checked by the IPC system to be in the range of 0..maxvalue inclusive.
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// This macro should not need to be subsequently redefined.
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#define IPC_ENUM_TRAITS_MAX_VALUE(type, maxvalue) \
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IPC_ENUM_TRAITS_MIN_MAX_VALUE(type, 0, maxvalue)
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// Convenience macro for defining enumerated type traits for types which are
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// range-checked by the IPC system to be in the range of minvalue..maxvalue
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// inclusive. This macro should not need to be subsequently redefined.
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// TODO(tsepez): Cast to std::underlying_type<>::type once that is permitted.
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#define IPC_ENUM_TRAITS_MIN_MAX_VALUE(type, minvalue, maxvalue) \
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IPC_ENUM_TRAITS_VALIDATE( \
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type, (static_cast<int>(value) >= static_cast<int>(minvalue) && \
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static_cast<int>(value) <= static_cast<int>(maxvalue)))
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// Traits generation for enums. This macro may be redefined later.
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#define IPC_ENUM_TRAITS_VALIDATE(enum_name, validation_expression) \
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namespace IPC { \
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template <> \
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struct IPC_MESSAGE_EXPORT ParamTraits<enum_name> { \
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typedef enum_name param_type; \
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static void Write(base::Pickle* m, const param_type& p); \
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static bool Read(const base::Pickle* m, \
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base::PickleIterator* iter, \
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param_type* p); \
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static void Log(const param_type& p, std::string* l); \
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}; \
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}
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#endif // IPC_PARAM_TRAITS_MACROS_H_
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