mirror of
https://gitlab.linphone.org/BC/public/linphone-iphone.git
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305 lines
10 KiB
C++
305 lines
10 KiB
C++
/*
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* c-tools.h
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* Copyright (C) 2017 Belledonne Communications SARL
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _C_TOOLS_H_
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#define _C_TOOLS_H_
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#include <list>
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#include <memory>
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#include "variant/variant.h"
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// From coreapi.
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#include "private.h"
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// =============================================================================
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LINPHONE_BEGIN_NAMESPACE
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class Wrapper {
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private:
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template<typename T>
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struct WrappedObject {
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belle_sip_object_t base;
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std::shared_ptr<T> cppPtr;
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};
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template<typename T>
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struct WrappedClonableObject {
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belle_sip_object_t base;
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void *userData;
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T *cppPtr;
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};
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public:
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template<typename T>
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static inline decltype (std::declval<T>().getPrivate()) getPrivate (T *object) {
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if (!object)
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return nullptr;
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return object->getPrivate();
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}
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template<typename T>
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static inline decltype (std::declval<T>().getPrivate()) getPrivate (const std::shared_ptr<T> &object) {
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if (!object)
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return nullptr;
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return object->getPrivate();
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}
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// ---------------------------------------------------------------------------
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// Get c/cpp ptr helpers.
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// ---------------------------------------------------------------------------
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template<
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typename CppType,
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typename CType,
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typename = typename std::enable_if<std::is_base_of<Object, CppType>::value, CppType>::type
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//typename std::enable_if<std::is_base_of<Object, CppType>::value, CppType>::type = 0
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>
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static inline std::shared_ptr<CppType> getCppPtrFromC (CType *object) {
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L_ASSERT(object);
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return reinterpret_cast<WrappedObject<CppType> *>(object)->cppPtr;
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}
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template<
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typename CppType,
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typename CType,
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typename = typename std::enable_if<std::is_base_of<Object, CppType>::value, CppType>::type
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//typename std::enable_if<std::is_base_of<Object, CppType>::value, CppType>::type = 0
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>
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static inline std::shared_ptr<const CppType> getCppPtrFromC (const CType *object) {
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L_ASSERT(object);
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return reinterpret_cast<const WrappedObject<CppType> *>(object)->cppPtr;
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}
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template<
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typename CppType,
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typename CType,
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typename = typename std::enable_if<std::is_base_of<ClonableObject, CppType>::value, CppType>::type
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>
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static inline CppType *getCppPtrFromC (CType *object) {
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L_ASSERT(object);
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return reinterpret_cast<WrappedClonableObject<CppType> *>(object)->cppPtr;
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}
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template<
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typename CppType,
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typename CType,
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typename = typename std::enable_if<std::is_base_of<ClonableObject, CppType>::value, CppType>::type
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>
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static inline const CppType *getCppPtrFromC (const CType *object) {
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L_ASSERT(object);
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return reinterpret_cast<const WrappedClonableObject<CppType> *>(object)->cppPtr;
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}
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template<typename T>
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static inline void setCppPtrFromC (void *object, const std::shared_ptr<T> &cppPtr) {
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L_ASSERT(object);
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static_cast<WrappedObject<T> *>(object)->cppPtr = cppPtr;
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cppPtr->setProperty("LinphonePrivate::Wrapper::cBackPtr", object);
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}
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template<typename T>
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static inline void setCppPtrFromC (void *object, const T *cppPtr) {
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L_ASSERT(object);
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T *oldPtr = reinterpret_cast<T *>(static_cast<WrappedClonableObject<T> *>(object)->cppPtr);
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if (oldPtr != cppPtr) {
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delete oldPtr;
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T *cppObject = static_cast<WrappedClonableObject<T> *>(object)->cppPtr;
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cppObject = new T(*cppPtr);
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cppObject->setProperty("LinphonePrivate::Wrapper::cBackPtr", object);
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}
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}
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template<typename T>
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static T *getCppPtr (const std::shared_ptr<T> &cppPtr) {
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return cppPtr.get();
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}
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template<typename T>
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static T *getCppPtr (T *cppPtr) {
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return cppPtr;
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}
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template<typename CType, typename CppType>
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static inline CType * getCBackPtr (const std::shared_ptr<CppType> &object, CType *(*cTypeAllocator)()) {
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Variant v = object->getProperty("LinphonePrivate::Wrapper::cBackPtr");
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void *value = v.getValue<void *>();
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if (!value) {
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CType *cObject = cTypeAllocator();
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setCppPtrFromC(cObject, object);
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}
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return reinterpret_cast<CType *>(value);
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}
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template<typename CType, typename CppType>
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static inline CType * getCBackPtr (const CppType *object, CType *(*cTypeAllocator)()) {
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Variant v = object->getProperty("LinphonePrivate::Wrapper::cBackPtr");
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void *value = v.getValue<void *>();
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if (!value) {
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CType *cObject = cTypeAllocator();
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setCppPtrFromC(cObject, object);
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}
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return reinterpret_cast<CType *>(value);
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}
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// ---------------------------------------------------------------------------
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template<typename T>
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static inline bctbx_list_t * getCListFromCppList (std::list<T> cppList) {
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bctbx_list_t *result = nullptr;
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for (const auto &value : cppList)
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result = bctbx_list_append(result, value);
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return result;
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}
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template<typename T>
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static inline std::list<T> getCppListFromCList (const bctbx_list_t *cList) {
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std::list<T> result;
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for (auto it = cList; it; it = bctbx_list_next(it))
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result.push_back(static_cast<T>(bctbx_list_get_data(it)));
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return result;
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}
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template<typename T, typename U>
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static inline std::list<T> getCppListOfCppObjFromCListOfStructPtr (const bctbx_list_t *cList) {
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std::list<T> result;
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for (auto it = cList; it; it = bctbx_list_next(it))
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result.push_back(*getCppPtrFromC<T>(reinterpret_cast<U *>(bctbx_list_get_data(it))));
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return result;
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}
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private:
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Wrapper ();
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L_DISABLE_COPY(Wrapper);
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};
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LINPHONE_END_NAMESPACE
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// -----------------------------------------------------------------------------
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#define L_DECLARE_C_STRUCT_IMPL_WITH_XTORS(CPP_CLASS, C_STRUCT, C_NAME, CONSTRUCTOR, DESTRUCTOR, ...) \
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struct _Linphone ## C_STRUCT { \
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belle_sip_object_t base; \
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std::shared_ptr<LINPHONE_NAMESPACE::CPP_CLASS> cppPtr; \
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__VA_ARGS__ \
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}; \
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BELLE_SIP_DECLARE_VPTR_NO_EXPORT(Linphone ## C_STRUCT); \
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Linphone ## C_STRUCT *_linphone_ ## C_NAME ## _init() { \
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Linphone ## C_STRUCT * object = belle_sip_object_new(Linphone ## C_STRUCT); \
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new(&object->cppPtr) std::shared_ptr<LINPHONE_NAMESPACE::CPP_CLASS>(); \
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CONSTRUCTOR(object); \
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return object; \
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} \
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void _linphone_ ## C_NAME ## _uninit(Linphone ## C_STRUCT * object) { \
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DESTRUCTOR(object); \
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object->cppPtr.~shared_ptr (); \
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} \
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BELLE_SIP_DECLARE_NO_IMPLEMENTED_INTERFACES(Linphone ## C_STRUCT); \
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BELLE_SIP_INSTANCIATE_VPTR(Linphone ## C_STRUCT, belle_sip_object_t, \
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_linphone_ ## C_NAME ## _uninit, \
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NULL, \
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NULL, \
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FALSE \
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);
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#define L_DECLARE_C_STRUCT_IMPL(CPP_CLASS, C_STRUCT, C_NAME, ...) \
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struct _Linphone ## C_STRUCT { \
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belle_sip_object_t base; \
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std::shared_ptr<LINPHONE_NAMESPACE::CPP_CLASS> cppPtr; \
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__VA_ARGS__ \
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}; \
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BELLE_SIP_DECLARE_VPTR_NO_EXPORT(Linphone ## C_STRUCT); \
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Linphone ## C_STRUCT *_linphone_ ## C_NAME ## _init() { \
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Linphone ## C_STRUCT * object = belle_sip_object_new(Linphone ## C_STRUCT); \
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new(&object->cppPtr) std::shared_ptr<LINPHONE_NAMESPACE::CPP_CLASS>(); \
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return object; \
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} \
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void _linphone_ ## C_NAME ## _uninit(Linphone ## C_STRUCT * object) { \
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object->cppPtr.~shared_ptr (); \
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} \
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BELLE_SIP_DECLARE_NO_IMPLEMENTED_INTERFACES(Linphone ## C_STRUCT); \
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BELLE_SIP_INSTANCIATE_VPTR(Linphone ## C_STRUCT, belle_sip_object_t, \
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_linphone_ ## C_NAME ## _uninit, \
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NULL, \
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NULL, \
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FALSE \
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);
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#define L_DECLARE_C_CLONABLE_STRUCT_IMPL(CPP_CLASS, C_STRUCT, C_NAME, ...) \
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struct _Linphone ## C_STRUCT { \
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belle_sip_object_t base; \
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void *userData; \
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LINPHONE_NAMESPACE::CPP_CLASS *cppPtr; \
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__VA_ARGS__ \
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}; \
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BELLE_SIP_DECLARE_VPTR_NO_EXPORT(Linphone ## C_STRUCT); \
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Linphone ## C_STRUCT *_linphone_ ## C_NAME ## _init() { \
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return belle_sip_object_new(Linphone ## C_STRUCT); \
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} \
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void _linphone_ ## C_NAME ## _uninit(Linphone ## C_STRUCT * object) { \
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delete object->cppPtr; \
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} \
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void _linphone_ ## C_NAME ## _clone(Linphone ## C_STRUCT * dest, const Linphone ## C_STRUCT * src) { \
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L_ASSERT(src->cppPtr); \
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dest->cppPtr = new LINPHONE_NAMESPACE::CPP_CLASS(*src->cppPtr); \
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} \
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BELLE_SIP_DECLARE_NO_IMPLEMENTED_INTERFACES(Linphone ## C_STRUCT); \
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BELLE_SIP_INSTANCIATE_VPTR(Linphone ## C_STRUCT, belle_sip_object_t, \
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_linphone_ ## C_NAME ## _uninit, \
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_linphone_ ## C_NAME ## _clone, \
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NULL, \
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FALSE \
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);
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#define L_DECLARE_C_STRUCT_NEW_DEFAULT(STRUCT, C_NAME) \
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Linphone ## STRUCT * linphone_ ## C_NAME ## _new() { \
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Linphone ## STRUCT * object = _linphone_ ## C_NAME ## _init(); \
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object->cppPtr = std::make_shared<LINPHONE_NAMESPACE::STRUCT>(); \
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return object; \
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}
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#define L_STRING_TO_C(STR) ((STR).empty() ? NULL : (STR).c_str())
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#define L_C_TO_STRING(STR) ((STR) == NULL ? std::string() : (STR))
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#define L_GET_CPP_PTR_FROM_C_STRUCT(OBJECT, CPP_TYPE, C_TYPE) \
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LINPHONE_NAMESPACE::Wrapper::getCppPtrFromC<LINPHONE_NAMESPACE::CPP_TYPE, Linphone ## C_TYPE>(OBJECT)
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#define L_SET_CPP_PTR_FROM_C_STRUCT(OBJECT, CPP_PTR) \
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LINPHONE_NAMESPACE::Wrapper::setCppPtrFromC(OBJECT, CPP_PTR)
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#define L_GET_PRIVATE(OBJECT) \
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LINPHONE_NAMESPACE::Wrapper::getPrivate(OBJECT)
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#define L_GET_PRIVATE_FROM_C_STRUCT(OBJECT, CPP_TYPE, C_TYPE) \
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L_GET_PRIVATE(LINPHONE_NAMESPACE::Wrapper::getCppPtr( \
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L_GET_CPP_PTR_FROM_C_STRUCT(OBJECT, CPP_TYPE, C_TYPE) \
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))
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#define L_GET_C_BACK_PTR(OBJECT, C_TYPE, C_NAME) \
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LINPHONE_NAMESPACE::Wrapper::getCBackPtr<Linphone ## C_TYPE>(OBJECT, _linphone_ ## C_NAME ## _init)
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#define L_GET_C_LIST_FROM_CPP_LIST(LIST, TYPE) \
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LINPHONE_NAMESPACE::Wrapper::getCListFromCppList<TYPE *>(LIST)
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#define L_GET_CPP_LIST_FROM_C_LIST(LIST, TYPE) \
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LINPHONE_NAMESPACE::Wrapper::getCppListFromCList<TYPE *>(LIST)
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#define L_GET_CPP_LIST_OF_CPP_OBJ_FROM_C_LIST_OF_STRUCT_PTR(LIST, TYPE) \
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LINPHONE_NAMESPACE::Wrapper::getCppListOfCppObjFromCListOfStructPtr<LINPHONE_NAMESPACE::TYPE, Linphone ## TYPE>(LIST)
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#endif // ifndef _C_TOOLS_H_
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