linphone-ios/src/c-wrapper/c-tools.h

117 lines
3.6 KiB
C++

/*
* c-tools.h
* Copyright (C) 2017 Belledonne Communications SARL
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _C_TOOLS_H_
#define _C_TOOLS_H_
#include <memory>
#include <string>
// From coreapi.
#include "private.h"
// =============================================================================
LINPHONE_BEGIN_NAMESPACE
class Wrapper {
private:
template<typename T>
struct WrappedObject {
belle_sip_object_t base;
std::shared_ptr<T> cppPtr;
};
public:
template<typename T>
static inline decltype (std::declval<T>().getPrivate()) getPrivate (T *object) {
if (!object)
return nullptr;
return object->getPrivate();
}
template<typename T>
static inline std::shared_ptr<T> getCppPtrFromC (void *object) {
if (!object)
return std::shared_ptr<T>();
return static_cast<WrappedObject<T> *>(object)->cppPtr;
}
template<typename T>
static inline std::shared_ptr<const T> getCppPtrFromC (const void *object) {
if (!object)
return std::shared_ptr<const T>();
return static_cast<const WrappedObject<const T> *>(object)->cppPtr;
}
private:
Wrapper ();
L_DISABLE_COPY(Wrapper);
};
LINPHONE_END_NAMESPACE
// -----------------------------------------------------------------------------
#define L_DECLARE_C_STRUCT_IMPL(STRUCT, C_NAME) \
struct _Linphone ## STRUCT { \
belle_sip_object_t base; \
std::shared_ptr<LINPHONE_NAMESPACE::STRUCT> cppPtr; \
}; \
BELLE_SIP_DECLARE_VPTR_NO_EXPORT(Linphone ## STRUCT); \
static Linphone ## STRUCT *_linphone_ ## C_NAME ## _init() { \
Linphone ## STRUCT * object = belle_sip_object_new(Linphone ## STRUCT); \
new(&object->cppPtr) std::shared_ptr<LINPHONE_NAMESPACE::STRUCT>(); \
return object; \
} \
static void _linphone_ ## C_NAME ## _uninit(Linphone ## STRUCT * object) { \
object->cppPtr.~shared_ptr (); \
} \
static void _linphone_ ## C_NAME ## _clone(Linphone ## STRUCT * dest, const Linphone ## STRUCT * src) { \
new(&dest->cppPtr) std::shared_ptr<LINPHONE_NAMESPACE::STRUCT>(); \
dest->cppPtr = std::make_shared<LINPHONE_NAMESPACE::STRUCT>(*src->cppPtr.get()); \
} \
BELLE_SIP_DECLARE_NO_IMPLEMENTED_INTERFACES(Linphone ## STRUCT); \
BELLE_SIP_INSTANCIATE_VPTR(Linphone ## STRUCT, belle_sip_object_t, \
_linphone_ ## C_NAME ## _uninit, \
_linphone_ ## C_NAME ## _clone, \
NULL, \
FALSE \
);
#define L_DECLARE_C_STRUCT_NEW_DEFAULT(STRUCT, C_NAME) \
Linphone ## STRUCT * linphone_ ## C_NAME ## _new() { \
Linphone ## STRUCT * object = _linphone_ ## C_NAME ## _init(); \
object->cppPtr = std::make_shared<LINPHONE_NAMESPACE::STRUCT>(); \
return object; \
}
#define L_STRING_TO_C(STR) ((STR).empty() ? NULL : (STR).c_str())
#define L_C_TO_STRING(STR) ((STR) == NULL ? std::string() : (STR))
#define L_GET_CPP_PTR_FROM_C_STRUCT(OBJECT, TYPE) \
LINPHONE_NAMESPACE::Wrapper::getCppPtrFromC<LINPHONE_NAMESPACE::TYPE>(OBJECT)
#define L_GET_PRIVATE(OBJECT) \
LINPHONE_NAMESPACE::Wrapper::getPrivate(OBJECT)
#define L_GET_PRIVATE_FROM_C_STRUCT(OBJECT, TYPE) \
L_GET_PRIVATE(L_GET_CPP_PTR_FROM_C_STRUCT(OBJECT, TYPE).get())
#endif // ifndef _C_TOOLS_H_