[DEV] can remove signal befor handle
This commit is contained in:
parent
9003745811
commit
1fcf22bf03
@ -14,15 +14,13 @@
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namespace esignal {
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#undef __class__
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#define __class__ "Signal<T>"
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template<typename T> class Signal : public esignal::Base {
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private:
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std::vector<std::pair<std::weak_ptr<void>,
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std::function<void(const T&)>>> m_callerList; // current list of binded element
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std::vector<std::pair<std::weak_ptr<void>,
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std::function<void(const T&)>>> m_callerListInCallback; // temporaty list (when add one in call process)
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std::vector<std::function<void(const T&)>> m_callerListDirect; // current list of binded element
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std::vector<std::function<void(const T&)>> m_callerListDirectInCallback; // temporaty list (when add one in call process)
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#define __class__ "ISignal<T>"
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template<class... Args>
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class ISignal : public Signal<Args...> {
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protected:
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esignal::Interface& m_signalInterfaceLink;
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std::string m_name;
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std::string m_description;
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public:
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/**
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* @brief Create a signal with a specific type.
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@ -31,10 +29,10 @@ namespace esignal {
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* @param[in] _description Description of the signal.
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* @param[in] _periodic Customisation of the log display tag at true to down debug lebel at verbose.
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*/
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Signal(esignal::Interface& _signalInterfaceLink,
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const std::string& _name,
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const std::string& _description = "",
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bool _periodic = false);
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ISignal(esignal::Interface& _signalInterfaceLink,
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const std::string& _name,
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const std::string& _description = "",
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bool _periodic = false);
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/**
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* @brief Destructor.
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*/
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430
esignal/Signal.h
430
esignal/Signal.h
@ -14,27 +14,172 @@
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#include <functional>
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#include <type_traits>
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#include <utility>
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#include <mutex>
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namespace esignal {
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extern size_t s_uid;
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template<class TYPE>
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class RefCount {
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public:
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std::mutex m_lock;
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int64_t m_count;
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TYPE* m_data;
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public:
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RefCount(TYPE* _data) :
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m_count(0),
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m_data(_data) {
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// nothing to do.
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}
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// copy constructor:
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RefCount(const RefCount&) = delete;
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// copy operator:
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RefCount& operator=(RefCount) = delete;
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RefCount& operator=(const RefCount& _obj) = delete;
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// Move constructor
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RefCount(RefCount&& _obj) = delete;
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// Move operator
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RefCount& operator=(RefCount&& _obj) = delete;
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public:
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~RefCount() {
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m_data = nullptr;
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}
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public:
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void lock() {
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m_lock.lock();
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}
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void unlock() {
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m_lock.unlock();
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}
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void inc() {
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lock();
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m_count++;
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unlock();
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}
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int64_t dec() {
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int64_t val;
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lock();
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m_count--;
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val = m_count;
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unlock();
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return val;
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}
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int64_t getCount() const {
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return m_count;
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}
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void remove() {
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lock();
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m_data = nullptr;
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unlock();
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}
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TYPE* get() {
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return m_data;
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}
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};
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template<class TYPE>
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class lockSharedPtrRef {
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public:
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RefCount<TYPE>* m_counter;
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public:
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lockSharedPtrRef(TYPE* _pointer) :
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m_counter(nullptr) {
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if (_pointer != nullptr) {
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m_counter = new RefCount<TYPE>(_pointer);
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m_counter->inc();
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}
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}
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// copy constructor:
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lockSharedPtrRef(const lockSharedPtrRef& _obj) :
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m_counter(_obj.m_counter) {
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if (m_counter == nullptr) {
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return;
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}
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m_counter->inc();
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}
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// copy operator:
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lockSharedPtrRef& operator=(lockSharedPtrRef) = delete;
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lockSharedPtrRef& operator=(const lockSharedPtrRef& _obj) {
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if (&_obj == this) {
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return *this;
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}
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if (m_counter != nullptr) {
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m_counter->dec();
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m_counter = nullptr;
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}
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m_counter = _obj.m_counter;
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if (m_counter == nullptr) {
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return;
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}
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m_counter->inc();
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return *this;
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}
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// Move constructor
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lockSharedPtrRef(lockSharedPtrRef&& _obj) :
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m_counter(std::move(_obj.m_counter)) {
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}
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// Move operator
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lockSharedPtrRef& operator=(lockSharedPtrRef&& _obj) {
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m_counter = std::move(_obj.m_counter);
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}
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~lockSharedPtrRef() {
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int64_t count = m_counter->dec();
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if (count > 0) {
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return;
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}
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delete m_counter;
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m_counter = nullptr;
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}
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void removeData() {
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if (m_counter != nullptr) {
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m_counter->remove();
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}
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}
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void disconnect(std::size_t _uid) {
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if (m_counter == nullptr) {
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return;
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}
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m_counter->lock();
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TYPE* val = m_counter->get();
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if (val != nullptr) {
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val->disconnect(_uid);
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}
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m_counter->unlock();
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}
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};
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#undef __class__
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#define __class__ "Signal<T>"
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class SignalInderection;
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class SignalBase {
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protected:
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lockSharedPtrRef<SignalBase> m_shared;
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public:
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SignalBase() {
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SignalBase() :
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m_shared(this) {
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}
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// copy constructor:
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SignalBase(const SignalBase&) = delete;
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// copy operator:
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//SignalBase& operator=(SignalBase) = delete;
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//SignalBase& operator=(const SignalBase& _obj) = delete;
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// Move constructor
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SignalBase(SignalBase&& _obj) = delete;
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// Move operator
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//SignalBase& operator=(SignalBase&& _obj) = delete;
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virtual ~SignalBase() {
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m_shared.removeData();
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}
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virtual void disconnect(std::size_t _uid) = 0;
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};
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class Connection {
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public:
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Connection(SignalBase* _sig, std::size_t _id):
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m_signal(_sig), m_uid(_id) {
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Connection(lockSharedPtrRef<SignalBase> _ref, std::size_t _id):
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m_signalRefUnique(_ref), m_uid(_id) {
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}
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Connection(const Connection&) = delete; // not copyable
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@ -43,23 +188,15 @@ namespace esignal {
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Connection& operator=(Connection&&) = default; // movable op
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~Connection() {
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if (m_signal == nullptr) {
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return;
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}
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m_signal->disconnect(m_uid);
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m_signal = nullptr;
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m_signalRefUnique.disconnect(m_uid);
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m_uid = 0;
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}
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void disconnect() {
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if (m_signal == nullptr) {
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return;
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}
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m_signal->disconnect(m_uid);
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m_signal = nullptr;
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m_signalRefUnique.disconnect(m_uid);
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m_uid = 0;
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}
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private:
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SignalBase* m_signal;
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lockSharedPtrRef<SignalBase> m_signalRefUnique;
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std::size_t m_uid;
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};
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@ -67,8 +204,6 @@ namespace esignal {
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class Signal : public SignalBase {
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public:
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using Observer = std::function<void(const Args&...)>;
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public:
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private:
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class Executor {
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@ -132,7 +267,7 @@ namespace esignal {
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std::unique_ptr<Executor> executer(new Executor(std::forward<ObserverType>(observer)));
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std::size_t uid = executer->m_uid;
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m_executors.push_back(std::move(executer));
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return Connection(this, uid);
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return Connection(SignalBase::m_shared, uid);
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}
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template<class pointer, class Func, class... Arg>
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Connection connect(pointer* _class, Func _f, Arg... _arg) {
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@ -141,7 +276,7 @@ namespace esignal {
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}));
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std::size_t uid = executer->m_uid;
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m_executors.push_back(std::move(executer));
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return Connection(this, uid);
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return Connection(SignalBase::m_shared, uid);
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}
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template<class pointer, class Func, class... Arg>
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void connect(const std::shared_ptr<pointer>& _class, Func _f, Arg... _arg) {
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@ -183,6 +318,15 @@ namespace esignal {
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m_callInProgress(0) {
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}
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// copy constructor:
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Signal(const Signal&) = delete;
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// copy operator:
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Signal& operator=(Signal) = delete;
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Signal& operator=(const Signal& _obj) = delete;
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// Move constructor
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Signal(Signal&& _obj) = delete;
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// Move operator
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Signal& operator=(Signal&& _obj) = delete;
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size_t size() const {
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return m_executors.size();
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}
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@ -198,256 +342,8 @@ namespace esignal {
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std::vector<std::unique_ptr<Executor>> m_executors;
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int32_t m_callInProgress;
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};
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/*
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class SignalInderection : public std::enable_shared_ptr<SignalInderection> {
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public:
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}
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*/
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#if 0
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template<typename... T> class Signal {
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public:
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using Observer std::function<void(const T&...)>;
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private:
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std::vector<std::pair<std::weak_ptr<void>, Observer>> m_callerList; // current list of binded element
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std::vector<std::pair<std::weak_ptr<void>, Observer>> m_callerListInCallback; // temporaty list (when add one in call process)
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std::vector<Observer> m_callerListDirect; // current list of binded element
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std::vector<Observer> m_callerListDirectInCallback; // temporaty list (when add one in call process)
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int32_t m_callInProgress;
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bool m_someOneRemoveInCall;
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public:
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/**
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* @brief Create a signal with a specific type.
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* @param[in] _signalInterfaceLink reference on the signal lister.
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* @param[in] _name Static name of the signal.
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* @param[in] _description Description of the signal.
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* @param[in] _periodic Customisation of the log display tag at true to down debug lebel at verbose.
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*/
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Signal() :
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m_callInProgress(0),
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m_someOneRemoveInCall(false) {
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}
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/**
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* @brief Destructor.
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*/
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~Signal() = default;
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/**
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* @brief Bind a callback function to the current signal (generic methis (simplest))
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* @param[in] _obj Shared pointer on the caller object
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* @param[in] _func Link on the fuction that might be called (inside a class)
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* @example signalXXXX.bind(shared_from_this(), &ClassName::onCallbackXXX);
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*/
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template<class TYPE_CLASS, class TYPE, typename... TArgs>
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void bind(std::shared_ptr<TYPE_CLASS> _obj, void (TYPE::*_func)(const T&..., TArgs...), TArgs... _args2) {
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std::shared_ptr<TYPE> obj2 = std::dynamic_pointer_cast<TYPE>(_obj);
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if (obj2 == nullptr) {
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ESIGNAL_ERROR("Can not bind signal ...");
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return;
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}
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if (m_callInProgress == 0) {
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if (COUNT_ELEM == 1) {
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m_callerList.push_back(std::make_pair(std::weak_ptr<void>(_obj), [](TArgs...){obj2.get()->, std::placeholders::_1, std::forward<TArgs>(_args2)...)));
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}
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} else {
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// m_callerListInCallback.push_back(std::make_pair(std::weak_ptr<void>(_obj), std::bind(_func, obj2.get(), std::placeholders::_1, std::forward<TArgs>(_args2)...)));
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}
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}
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/**
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* @brief Advanced binding a callback function to the current signal.
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* @param[in] _obj Shared pointer on the caller object
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* @param[in] _func functor to call (do it yourself)
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* @example signalXXXX.connect(shared_from_this(), std::bind(&ClassName::onCallbackXXX, this, std::placeholders::_1));
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*/
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void connect(std::shared_ptr<void> _obj, std::function<void(const T&...)> _function ) {
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if (m_callInProgress == 0) {
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m_callerList.push_back(std::make_pair(std::weak_ptr<void>(_obj), _function));
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} else {
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m_callerListInCallback.push_back(std::make_pair(std::weak_ptr<void>(_obj), _function));
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}
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}
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//! @previous
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void connect(std::function<void(const T&...)> _function );{
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if (m_callInProgress == 0) {
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m_callerListDirect.push_back(_function);
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} else {
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m_callerListDirectInCallback.push_back(_function);
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}
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}
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/**
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* @brief Check if an object is registered in the Signal
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* @param[in] _obj shared pointer on the object
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* @return true The object is connected at this signal.
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* @return false The object is NOT connected on this signal.
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*/
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bool isRegistered(std::shared_ptr<void> _obj) {
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if (_obj == nullptr) {
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return false;
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}
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for (auto &it : m_callerList) {
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std::shared_ptr<void> obj = it.first.lock();
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if (obj == _obj) {
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return true;
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}
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}
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for (auto &it : m_callerListInCallback) {
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std::shared_ptr<void> obj = it.first.lock();
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if (obj == _obj) {
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return true;
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}
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}
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return false;
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};
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/**
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* @brief remove link on the signal.
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* @param[in] _obj shared pointer on the removing object
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*/
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void release(std::shared_ptr<void> _obj);{
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if (m_callInProgress == 0) {
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// Remove from the list :
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auto it(m_callerList.begin());
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while(it != m_callerList.end()) {
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if (it->first.lock() == _obj) {
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it = m_callerList.erase(it);
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} else {
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++it;
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}
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}
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} else {
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// just remove weak poointer
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auto it(m_callerList.begin());
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while(it != m_callerList.end()) {
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if (it->first.lock() == _obj) {
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it->first.reset();
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} else {
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++it;
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}
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}
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m_someOneRemoveInCall = true;
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}
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// remove from add list in callback progress
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auto it = m_callerListInCallback.begin();
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while(it != m_callerListInCallback.end()) {
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if (it->first.lock() == _obj) {
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it = m_callerListInCallback.erase(it);
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} else {
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++it;
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}
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}
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}
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/**
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* @brief Generate a signal on all interface listening.
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* @param[in] _data data to emit
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*/
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void emit(const T&... _data);{
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#ifdef DEBUG
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m_signalCallLevel++;
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int32_t tmpID = m_uidSignal++;
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#endif
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m_callInProgress++;
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if (m_periodic == true) {
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ESIGNAL_VERBOSE(esignal::logIndent(m_signalCallLevel-1) << "emit signal{" << tmpID << "} : signal='" << m_name << "' data='" << /*etk::to_string(_data) <<*/ "' to: " << m_callerList.size() << " element(s)");
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} else {
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ESIGNAL_DEBUG(esignal::logIndent(m_signalCallLevel-1) << "emit signal{" << tmpID << "} : signal='" << m_name << "' data='" << /*etk::to_string(_data) <<*/ "' to: " << m_callerList.size() << " element(s)");
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}
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{
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auto it(m_callerList.begin());
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while (it != m_callerList.end()) {
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std::shared_ptr<void> destObject = it->first.lock();
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if (destObject == nullptr) {
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it = m_callerList.erase(it);
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ESIGNAL_DEBUG(esignal::logIndent(m_signalCallLevel-1) << " nullptr dest");
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continue;
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}
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if (m_periodic == true) {
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ESIGNAL_VERBOSE(esignal::logIndent(m_signalCallLevel-1) << " signal{" << tmpID << "} :");// [" << destObject->getId() << "]" << destObject->getObjectType());
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} else {
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ESIGNAL_DEBUG(esignal::logIndent(m_signalCallLevel-1) << " signal{" << tmpID << "} :");// [" << destObject->getId() << "]" << destObject->getObjectType());
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}
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it->second(_data...);
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++it;
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}
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}
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{
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auto it(m_callerListDirect.begin());
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while (it != m_callerListDirect.end()) {
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if (m_periodic == true) {
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ESIGNAL_VERBOSE(esignal::logIndent(m_signalCallLevel-1) << "X signal{" << tmpID << "} :");// [" << destObject->getId() << "]" << destObject->getObjectType());
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} else {
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ESIGNAL_DEBUG(esignal::logIndent(m_signalCallLevel-1) << "X signal{" << tmpID << "} :");// [" << destObject->getId() << "]" << destObject->getObjectType());
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}
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(*it)(_data...);
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||||
++it;
|
||||
}
|
||||
}
|
||||
m_callInProgress--;
|
||||
#ifdef DEBUG
|
||||
m_signalCallLevel--;
|
||||
#endif
|
||||
// Remove element in call phase:
|
||||
if (m_someOneRemoveInCall == true) {
|
||||
m_someOneRemoveInCall = false;
|
||||
// Remove from the list :
|
||||
auto it(m_callerList.begin());
|
||||
while(it != m_callerList.end()) {
|
||||
if (it->first.expired() == true) {
|
||||
it = m_callerList.erase(it);
|
||||
} else {
|
||||
++it;
|
||||
}
|
||||
}
|
||||
}
|
||||
// add element in call phase:
|
||||
if (m_callerListInCallback.size() > 0) {
|
||||
for (auto &it : m_callerListInCallback) {
|
||||
m_callerList.push_back(it);
|
||||
}
|
||||
m_callerListInCallback.clear();
|
||||
}
|
||||
if (m_callerListDirectInCallback.size() > 0) {
|
||||
for (auto &it : m_callerListDirectInCallback) {
|
||||
m_callerListDirect.push_back(it);
|
||||
}
|
||||
m_callerListDirectInCallback.clear();
|
||||
}
|
||||
}
|
||||
size_t getNumberConnected();{
|
||||
return m_callerList.size() + m_callerListDirect.size();
|
||||
}
|
||||
};
|
||||
#endif
|
||||
#undef __class__
|
||||
#define __class__ nullptr
|
||||
}
|
||||
|
||||
|
||||
//#define SDFGSDFGSDFGSDFGSDFGSDFG
|
||||
#ifdef SDFGSDFGSDFGSDFGSDFGSDFG
|
||||
#include <functional>
|
||||
#include <type_traits>
|
||||
#include <utility>
|
||||
|
||||
template<int I> struct placeholder{};
|
||||
|
||||
namespace std{
|
||||
template<int I>
|
||||
struct is_placeholder< ::placeholder<I>> : std::integral_constant<int, I>{
|
||||
|
||||
};
|
||||
} // std::
|
||||
|
||||
namespace detail{
|
||||
template<std::size_t... Is, class F, class... Args>
|
||||
auto easy_bind(indices<Is...>, F const& f, Args&&... args) -> decltype(std::bind(f, std::forward<Args>(args)..., placeholder<Is + 1>{}...)) {
|
||||
return std::bind(f, std::forward<Args>(args)..., placeholder<Is + 1>{}...);
|
||||
}
|
||||
} // detail::
|
||||
|
||||
template<class R, class... FArgs, class... Args>
|
||||
auto easy_bind(std::function<R(FArgs...)> const& f, Args&&... args) -> decltype(detail::easy_bind(build_indices<sizeof...(FArgs) - sizeof...(Args)>{}, f, std::forward<Args>(args)...)) {
|
||||
return detail::easy_bind(build_indices<sizeof...(FArgs) - sizeof...(Args)>{}, f, std::forward<Args>(args)...);
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
@ -13,7 +13,7 @@
|
||||
#include <gtest/gtest.h>
|
||||
|
||||
#undef __class__
|
||||
#define __class__ "etktest"
|
||||
#define __class__ "etk-test"
|
||||
|
||||
int main(int _argc, const char *_argv[]) {
|
||||
::testing::InitGoogleTest(&_argc, const_cast<char **>(_argv));
|
||||
@ -22,12 +22,11 @@ int main(int _argc, const char *_argv[]) {
|
||||
std::string data = _argv[iii];
|
||||
if ( data == "-h"
|
||||
|| data == "--help") {
|
||||
TEST_PRINT("esvg-test - help : ");
|
||||
TEST_PRINT("esignal-test - help : ");
|
||||
TEST_PRINT(" " << _argv[0] << " [options]");
|
||||
TEST_PRINT(" No optiions ...");
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
//etk::initDefaultFolder("esvg-test");
|
||||
return RUN_ALL_TESTS();
|
||||
}
|
||||
|
||||
@ -98,6 +98,7 @@ TEST(test_signal_arg, checkType) {
|
||||
baseClass.emit();
|
||||
EXPECT_EQ(connectedClass->m_valueInt32, 22);
|
||||
*/
|
||||
#if 0
|
||||
esignal::Signal<int, float, char> signal;
|
||||
// ----------------------------------------------------
|
||||
auto display_values_1 = []( int a, float b, char c){
|
||||
@ -129,6 +130,14 @@ TEST(test_signal_arg, checkType) {
|
||||
signal.connect(connectedClassShared, &TestConnectShared::display_values_7, "coucou");
|
||||
|
||||
|
||||
signal.emit( 5, 2.99, 'k');
|
||||
|
||||
h1.disconnect();
|
||||
h2.disconnect();
|
||||
h3.disconnect();
|
||||
h4.disconnect();
|
||||
h5.disconnect();
|
||||
|
||||
//signal.connect( complete_class(&connectedClass, &TestConnect::display_values_3) );
|
||||
//signal.connect( TestConnect::display_values_3(&connectedClass) );
|
||||
|
||||
@ -144,5 +153,25 @@ TEST(test_signal_arg, checkType) {
|
||||
// ----------------------------------------------------
|
||||
|
||||
signal.emit( 5, 2.99, 'k');
|
||||
#endif
|
||||
std::cout << "========> Nes Signal " << std::endl;
|
||||
std::shared_ptr<esignal::Signal<std::string>> signalShared = std::make_shared<esignal::Signal<std::string>>();
|
||||
|
||||
std::cout << "========> Connect callback " << std::endl;
|
||||
auto display_val = [&]( const std::string& a){
|
||||
std::cout << " 1010 " << a<< std::endl;
|
||||
std::cout << " ----------------------------------" << std::endl;
|
||||
};
|
||||
esignal::Connection h7 = signalShared->connect(display_val);
|
||||
|
||||
std::cout << "========> Emit" << std::endl;
|
||||
signalShared->emit("coucou");
|
||||
|
||||
std::cout << "========> Remove Signal " << std::endl;
|
||||
signalShared.reset();
|
||||
|
||||
std::cout << "========> disconnect " << std::endl;
|
||||
h7.disconnect();
|
||||
|
||||
std::cout << "========================================= " << std::endl;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user