include/interface.h File Reference

#include <sys/types.h>

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Classes
struct	interface
struct	iface_impl
Defines
#define	MAX_IFACE   32
#define	IFACE(name)   ((const struct i_##name const*)&i_##name##_impl)
#define	INIT_IFACE(name,...)   static const struct i_##name i_##name##_impl = {&i_##name,__VA_ARGS__}
#define	NUMARGS(...)   (sizeof((const void*[]){__VA_ARGS__})/sizeof(void*))
#define	INIT_IMPL(...)   {NUMARGS(__VA_ARGS__), 0, {__VA_ARGS__}}
#define	CREATE_IMPL(...)   static struct iface_impl iface_impl = INIT_IMPL(__VA_ARGS__)
#define	METHOD_GET(iface, method)   (iface->method)
Typedefs
typedef struct interface *	iface_ptr
typedef struct iface_impl *	iface_impl_ptr
Functions
struct interface *	interfaceGet (iface_impl_ptr, const iface_ptr)

---

Define Documentation

#define CREATE_IMPL

(

...

)

static struct iface_impl iface_impl = INIT_IMPL(__VA_ARGS__)

Definition at line 16 of file interface.h.

#define IFACE

(

name

)

((const struct i_##name const*)&i_##name##_impl)

Definition at line 8 of file interface.h.

#define INIT_IFACE	(		name,
			...
	)		static const struct i_##name i_##name##_impl = {&i_##name,__VA_ARGS__}

Definition at line 10 of file interface.h.

#define INIT_IMPL

(

...

)

{NUMARGS(__VA_ARGS__), 0, {__VA_ARGS__}}

Definition at line 15 of file interface.h.

#define MAX_IFACE   32

Definition at line 6 of file interface.h.

#define METHOD_GET	(		iface,
			method
	)		(iface->method)

Definition at line 19 of file interface.h.

#define NUMARGS

(

...

)

(sizeof((const void*[]){__VA_ARGS__})/sizeof(void*))

Definition at line 13 of file interface.h.

---

Typedef Documentation

typedef struct iface_impl* iface_impl_ptr

Definition at line 33 of file interface.h.

typedef struct interface* iface_ptr

Definition at line 26 of file interface.h.

---

Function Documentation

struct interface* interfaceGet	(	iface_impl_ptr	iface_impl,
		const iface_ptr	_iface
	)		[read]

this one is important in selector functions to get the correct interface implementation of a class.

Definition at line 25 of file interface.c.

{
        const iface_ptr * iface = &_iface;
        void *            dummy;

    if (! iface_impl->simpl) {
        qsort((void**)(iface_impl->impl), iface_impl->nimpl, sizeof(iface_ptr), comp);
        iface_impl->simpl=TRUE;
    }

    dummy = bsearch(
                        &iface,
                        iface_impl->impl,
                        iface_impl->nimpl,
                        sizeof(iface_ptr),
                        comp);

        return dummy? *(struct interface **)dummy : dummy;
}