qsymbolsresolveutils_p.h File Reference

(0b6aa8edc9941beb34fb9ababbfaf0dae0fa6837)

#include <QtCore/qlibrary.h>
#include <QtMultimedia/qtmultimediaexports.h>
#include <tuple>
#include <memory>

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Classes
struct	DefaultReturn< T >
struct	DefaultReturn< void >
struct	FuncInfo< R(A...)>
class	SymbolsResolver
struct	SymbolsResolver::SymbolsMarker

Macros
#define	CHECK_VERSIONS(Name, NeededSoversion, DetectedVersion)
#define	BEGIN_INIT_FUNCS(...)
#define	INIT_FUNC(F)   QFunctionPointer F = initFunction(#F);
#define	END_INIT_FUNCS()
#define	EXPORT_FUNC
#define	DEFINE_FUNC_IMPL(F, Vars, TypesWithVars, ReturnFunc)
#define	VAR(I)   a##I
#define	VARS0()
#define	VARS1()   VAR(0)
#define	VARS2()   VARS1(), VAR(1)
#define	VARS3()   VARS2(), VAR(2)
#define	VARS4()   VARS3(), VAR(3)
#define	VARS5()   VARS4(), VAR(4)
#define	VARS6()   VARS5(), VAR(5)
#define	VARS7()   VARS6(), VAR(6)
#define	VARS8()   VARS7(), VAR(7)
#define	VARS9()   VARS8(), VAR(8)
#define	VARS10()   VARS9(), VAR(9)
#define	VARS11()   VARS10(), VAR(10)
#define	TYPE_WITH_VAR(F, I)   std::tuple_element_t<I, FuncInfo<decltype(F)>::Args> VAR(I)
#define	TYPES_WITH_VARS0(F)
#define	TYPES_WITH_VARS1(F)   TYPE_WITH_VAR(F, 0)
#define	TYPES_WITH_VARS2(F)   TYPES_WITH_VARS1(F), TYPE_WITH_VAR(F, 1)
#define	TYPES_WITH_VARS3(F)   TYPES_WITH_VARS2(F), TYPE_WITH_VAR(F, 2)
#define	TYPES_WITH_VARS4(F)   TYPES_WITH_VARS3(F), TYPE_WITH_VAR(F, 3)
#define	TYPES_WITH_VARS5(F)   TYPES_WITH_VARS4(F), TYPE_WITH_VAR(F, 4)
#define	TYPES_WITH_VARS6(F)   TYPES_WITH_VARS5(F), TYPE_WITH_VAR(F, 5)
#define	TYPES_WITH_VARS7(F)   TYPES_WITH_VARS6(F), TYPE_WITH_VAR(F, 6)
#define	TYPES_WITH_VARS8(F)   TYPES_WITH_VARS7(F), TYPE_WITH_VAR(F, 7)
#define	TYPES_WITH_VARS9(F)   TYPES_WITH_VARS8(F), TYPE_WITH_VAR(F, 8)
#define	TYPES_WITH_VARS10(F)   TYPES_WITH_VARS9(F), TYPE_WITH_VAR(F, 9)
#define	TYPES_WITH_VARS11(F)   TYPES_WITH_VARS10(F), TYPE_WITH_VAR(F, 10)
#define	RET(F, ...)   DefaultReturn<FuncInfo<decltype(F)>::Return>{__VA_ARGS__}
#define	DEFINE_FUNC(F, ArgsCount, ...)    DEFINE_FUNC_IMPL(F, VARS##ArgsCount, TYPES_WITH_VARS##ArgsCount, RET(F, __VA_ARGS__));

Functions
QT_BEGIN_NAMESPACE constexpr bool	areVersionsEqual (const char lhs[], const char rhs[])
constexpr bool	areVersionsEqual (const char lhs[], int rhsInt)

Macro Definition Documentation

BEGIN_INIT_FUNCS

#define BEGIN_INIT_FUNCS

(

...

)

Value:

    QT_USE_NAMESPACE \
    namespace { \
        class SymbolsResolverImpl : SymbolsResolver { \
        public: \
            SymbolsResolverImpl() : SymbolsResolver(__VA_ARGS__) \
            { checkLibrariesLoaded(&symbolsBegin, &symbolsEnd); } \
            static const SymbolsResolverImpl& instance() \
            { static const SymbolsResolverImpl instance; return instance; } \
            SymbolsMarker symbolsBegin;

Definition at line 106 of file qsymbolsresolveutils_p.h.

CHECK_VERSIONS

#define CHECK_VERSIONS	(		Name,
			NeededSoversion,
			DetectedVersion )

Value:

    static_assert(areVersionsEqual(NeededSoversion, DetectedVersion), \
                 "Configuartion error: misleading " Name " versions!")

Definition at line 102 of file qsymbolsresolveutils_p.h.

DEFINE_FUNC

#define DEFINE_FUNC	(		F,
			ArgsCount,
			... )    DEFINE_FUNC_IMPL(F, VARS##ArgsCount, TYPES_WITH_VARS##ArgsCount, RET(F, __VA_ARGS__));

Definition at line 173 of file qsymbolsresolveutils_p.h.

DEFINE_FUNC_IMPL

#define DEFINE_FUNC_IMPL	(		F,
			Vars,
			TypesWithVars,
			ReturnFunc )

Value:

    using F##_ReturnType = FuncInfo<decltype(F)>::Return; \
    extern "C" EXPORT_FUNC [[maybe_unused]] F##_ReturnType F(TypesWithVars(F)) { \
        using F##_Type = F##_ReturnType (*)(TypesWithVars(F)); \
        const auto f = SymbolsResolverImpl::instance().F; \
        return f ? (reinterpret_cast<F##_Type>(f))(Vars()) : ReturnFunc(); \
    }

Definition at line 133 of file qsymbolsresolveutils_p.h.

END_INIT_FUNCS

#define END_INIT_FUNCS

(

)

Value:

           SymbolsMarker symbolsEnd; \
        }; \
        [[maybe_unused]] static const auto *instantResolver = \
            SymbolsResolver::isLazyLoadEnabled() ? &SymbolsResolverImpl::instance() : nullptr; \
    }

Definition at line 119 of file qsymbolsresolveutils_p.h.

EXPORT_FUNC

#define EXPORT_FUNC

Definition at line 130 of file qsymbolsresolveutils_p.h.

INIT_FUNC

#define INIT_FUNC

(

F

)

QFunctionPointer F = initFunction(#F);

Definition at line 117 of file qsymbolsresolveutils_p.h.

RET

#define RET	(		F,
			... )   DefaultReturn<FuncInfo<decltype(F)>::Return>{__VA_ARGS__}

Definition at line 171 of file qsymbolsresolveutils_p.h.

TYPE_WITH_VAR

#define TYPE_WITH_VAR	(		F,
			I )   std::tuple_element_t<I, FuncInfo<decltype(F)>::Args> VAR(I)

Definition at line 156 of file qsymbolsresolveutils_p.h.

TYPES_WITH_VARS0

#define TYPES_WITH_VARS0

(

F

)

Definition at line 157 of file qsymbolsresolveutils_p.h.

TYPES_WITH_VARS1

#define TYPES_WITH_VARS1

(

F

)

TYPE_WITH_VAR(F, 0)

Definition at line 158 of file qsymbolsresolveutils_p.h.

TYPES_WITH_VARS10

#define TYPES_WITH_VARS10

(

F

)

TYPES_WITH_VARS9(F), TYPE_WITH_VAR(F, 9)

Definition at line 167 of file qsymbolsresolveutils_p.h.

TYPES_WITH_VARS11

#define TYPES_WITH_VARS11

(

F

)

TYPES_WITH_VARS10(F), TYPE_WITH_VAR(F, 10)

Definition at line 168 of file qsymbolsresolveutils_p.h.

TYPES_WITH_VARS2

#define TYPES_WITH_VARS2

(

F

)

TYPES_WITH_VARS1(F), TYPE_WITH_VAR(F, 1)

Definition at line 159 of file qsymbolsresolveutils_p.h.

TYPES_WITH_VARS3

#define TYPES_WITH_VARS3

(

F

)

TYPES_WITH_VARS2(F), TYPE_WITH_VAR(F, 2)

Definition at line 160 of file qsymbolsresolveutils_p.h.

TYPES_WITH_VARS4

#define TYPES_WITH_VARS4

(

F

)

TYPES_WITH_VARS3(F), TYPE_WITH_VAR(F, 3)

Definition at line 161 of file qsymbolsresolveutils_p.h.

TYPES_WITH_VARS5

#define TYPES_WITH_VARS5

(

F

)

TYPES_WITH_VARS4(F), TYPE_WITH_VAR(F, 4)

Definition at line 162 of file qsymbolsresolveutils_p.h.

TYPES_WITH_VARS6

#define TYPES_WITH_VARS6

(

F

)

TYPES_WITH_VARS5(F), TYPE_WITH_VAR(F, 5)

Definition at line 163 of file qsymbolsresolveutils_p.h.

TYPES_WITH_VARS7

#define TYPES_WITH_VARS7

(

F

)

TYPES_WITH_VARS6(F), TYPE_WITH_VAR(F, 6)

Definition at line 164 of file qsymbolsresolveutils_p.h.

TYPES_WITH_VARS8

#define TYPES_WITH_VARS8

(

F

)

TYPES_WITH_VARS7(F), TYPE_WITH_VAR(F, 7)

Definition at line 165 of file qsymbolsresolveutils_p.h.

TYPES_WITH_VARS9

#define TYPES_WITH_VARS9

(

F

)

TYPES_WITH_VARS8(F), TYPE_WITH_VAR(F, 8)

Definition at line 166 of file qsymbolsresolveutils_p.h.

VAR

#define VAR

(

I

)

a##I

Definition at line 142 of file qsymbolsresolveutils_p.h.

VARS0

#define VARS0

(

)

Definition at line 143 of file qsymbolsresolveutils_p.h.

VARS1

#define VARS1

(

)

VAR(0)

Definition at line 144 of file qsymbolsresolveutils_p.h.

VARS10

#define VARS10

(

)

VARS9(), VAR(9)

Definition at line 153 of file qsymbolsresolveutils_p.h.

VARS11

#define VARS11

(

)

VARS10(), VAR(10)

Definition at line 154 of file qsymbolsresolveutils_p.h.

VARS2

#define VARS2

(

)

VARS1(), VAR(1)

Definition at line 145 of file qsymbolsresolveutils_p.h.

VARS3

#define VARS3

(

)

VARS2(), VAR(2)

Definition at line 146 of file qsymbolsresolveutils_p.h.

VARS4

#define VARS4

(

)

VARS3(), VAR(3)

Definition at line 147 of file qsymbolsresolveutils_p.h.

VARS5

#define VARS5

(

)

VARS4(), VAR(4)

Definition at line 148 of file qsymbolsresolveutils_p.h.

VARS6

#define VARS6

(

)

VARS5(), VAR(5)

Definition at line 149 of file qsymbolsresolveutils_p.h.

VARS7

#define VARS7

(

)

VARS6(), VAR(6)

Definition at line 150 of file qsymbolsresolveutils_p.h.

VARS8

#define VARS8

(

)

VARS7(), VAR(7)

Definition at line 151 of file qsymbolsresolveutils_p.h.

VARS9

#define VARS9

(

)

VARS8(), VAR(8)

Definition at line 152 of file qsymbolsresolveutils_p.h.

Function Documentation

areVersionsEqual() [1/2]

QT_BEGIN_NAMESPACE constexpr bool areVersionsEqual ( const char lhs[], const char rhs[] )

constexpr

Definition at line 25 of file qsymbolsresolveutils_p.h.

References i.

areVersionsEqual() [2/2]

constexpr bool areVersionsEqual ( const char lhs[], int rhsInt )

constexpr

Definition at line 34 of file qsymbolsresolveutils_p.h.

References i.