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CallFunction.h
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CallFunction.h
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/* -*- 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 mozilla_recordreplay_CallFunction_h
#define mozilla_recordreplay_CallFunction_h
namespace mozilla {
namespace recordreplay {
// These macros define functions for calling a void* function pointer with
// a particular ABI and arbitrary arguments. In principle we could do this
// with varargs (i.e. cast to 'int (ABI *)(...)' before calling), but MSVC
// treats 'int (__stdcall *)(...)' as 'int (__cdecl *)(...)', unfortunately.
//
// After instantiating DefineAllCallFunctions, the resulting functions will
// be overloaded and have the form, for a given ABI:
//
// template <typename ReturnType>
// ReturnType CallFunctionABI(void* fn);
//
// template <typename ReturnType, typename T0>
// ReturnType CallFunctionABI(void* fn, T0 a0);
//
// template <typename ReturnType, typename T0, typename T1>
// ReturnType CallFunctionABI(void* fn, T0 a0, T1 a1);
//
// And so forth.
#define DefineCallFunction(aABI, aReturnType, aFormals, aFormalTypes, \
aActuals) \
static inline aReturnType CallFunction##aABI aFormals { \
MOZ_ASSERT(aFn); \
return BitwiseCast<aReturnType(aABI*) aFormalTypes>(aFn) aActuals; \
}
#define DefineAllCallFunctions(aABI) \
template <typename ReturnType> \
DefineCallFunction(aABI, ReturnType, (void* aFn), (), \
()) template <typename ReturnType, typename T0> \
DefineCallFunction( \
aABI, ReturnType, (void* aFn, T0 a0), (T0), \
(a0)) template <typename ReturnType, typename T0, typename T1> \
DefineCallFunction(aABI, ReturnType, (void* aFn, T0 a0, T1 a1), (T0, T1), \
(a0, a1)) template <typename ReturnType, typename T0, \
typename T1, typename T2> \
DefineCallFunction( \
aABI, ReturnType, (void* aFn, T0 a0, T1 a1, T2 a2), (T0, T1, T2), \
(a0, a1, a2)) template <typename ReturnType, typename T0, typename T1, \
typename T2, typename T3> \
DefineCallFunction( \
aABI, ReturnType, (void* aFn, T0 a0, T1 a1, T2 a2, T3 a3), \
(T0, T1, T2, T3), \
(a0, a1, a2, \
a3)) template <typename ReturnType, typename T0, typename T1, \
typename T2, typename T3, typename T4> \
DefineCallFunction( \
aABI, ReturnType, (void* aFn, T0 a0, T1 a1, T2 a2, T3 a3, T4 a4), \
(T0, T1, T2, T3, T4), \
(a0, a1, a2, a3, \
a4)) template <typename ReturnType, typename T0, typename T1, \
typename T2, typename T3, typename T4, typename T5> \
DefineCallFunction(aABI, ReturnType, \
(void* aFn, T0 a0, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5), \
(T0, T1, T2, T3, T4, T5), \
(a0, a1, a2, a3, a4, \
a5)) template <typename ReturnType, typename T0, \
typename T1, typename T2, typename T3, \
typename T4, typename T5, typename T6> \
DefineCallFunction( \
aABI, ReturnType, \
(void* aFn, T0 a0, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5, T6 a6), \
(T0, T1, T2, T3, T4, T5, T6), \
(a0, a1, a2, a3, a4, a5, \
a6)) template <typename ReturnType, typename T0, typename T1, \
typename T2, typename T3, typename T4, typename T5, \
typename T6, typename T7> \
DefineCallFunction( \
aABI, ReturnType, \
(void* aFn, T0 a0, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5, T6 a6, T7 a7), \
(T0, T1, T2, T3, T4, T5, T6, T7), \
(a0, a1, a2, a3, a4, a5, a6, \
a7)) template <typename ReturnType, typename T0, typename T1, \
typename T2, typename T3, typename T4, typename T5, \
typename T6, typename T7, typename T8> \
DefineCallFunction( \
aABI, ReturnType, \
(void* aFn, T0 a0, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5, T6 a6, T7 a7, \
T8 a8), \
(T0, T1, T2, T3, T4, T5, T6, T7, T8), \
(a0, a1, a2, a3, a4, a5, a6, a7, \
a8)) template <typename ReturnType, typename T0, typename T1, \
typename T2, typename T3, typename T4, typename T5, \
typename T6, typename T7, typename T8, typename T9> \
DefineCallFunction( \
aABI, ReturnType, \
(void* aFn, T0 a0, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5, T6 a6, T7 a7, \
T8 a8, T9 a9), \
(T0, T1, T2, T3, T4, T5, T6, T7, T8, T9), \
(a0, a1, a2, a3, a4, a5, a6, a7, a8, \
a9)) template <typename ReturnType, typename T0, typename T1, \
typename T2, typename T3, typename T4, typename T5, \
typename T6, typename T7, typename T8, typename T9, \
typename T10> \
DefineCallFunction( \
aABI, ReturnType, \
(void* aFn, T0 a0, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5, T6 a6, T7 a7, \
T8 a8, T9 a9, T10 a10), \
(T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10), \
(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, \
a10)) template <typename ReturnType, typename T0, typename T1, \
typename T2, typename T3, typename T4, typename T5, \
typename T6, typename T7, typename T8, typename T9, \
typename T10, typename T11> \
DefineCallFunction(aABI, ReturnType, \
(void* aFn, T0 a0, T1 a1, T2 a2, T3 a3, T4 a4, T5 a5, \
T6 a6, T7 a7, T8 a8, T9 a9, T10 a10, T11 a11), \
(T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11), \
(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11))
} // namespace recordreplay
} // namespace mozilla
#endif // mozilla_recordreplay_CallFunction_h