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internal: new shared_ptr and weak_ptr implementation (#5883)

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moves std::shared_ptrs to a new implementation

Advantages:
- you can dereference a weak_ptr directly. This will obviously segfault on a nullptr deref if it's expired.
   - this is useful to avoid the .lock() hell where we are 100% sure the pointer _should_ be valid. (and if it isn't, it should throw.)
- weak_ptrs are still valid while the SP is being destroyed.
   - reasoning: while an object (e.g. CWindow) is being destroyed, its `weak_ptr self` should be accessible (the sp is still alive, and so is CWindow), but it's not because by stl it's already expired (to prevent resurrection)
   - this impl solves it differently. w_p is expired, but can still be dereferenced and used. Creating `s_p`s is not possible anymore, though.
   - this is useful in destructors and callbacks.
This commit is contained in:
Vaxry
2024-05-05 17:16:00 +01:00
committed by GitHub
parent 589f758d94
commit 1ed1ce9506
88 changed files with 899 additions and 414 deletions
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6
src/protocols/PointerGestures.cpp
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@@ -71,7 +71,7 @@ void CPointerGesturesProtocol::onGestureDestroy(CPointerGestureHold* gesture) {
void CPointerGesturesProtocol::onGetPinchGesture(CZwpPointerGesturesV1* pMgr, uint32_t id, wl_resource* pointer) {
const auto CLIENT = pMgr->client();
const auto RESOURCE = m_vPinches.emplace_back(std::make_unique<CPointerGesturePinch>(std::make_shared<CZwpPointerGesturePinchV1>(CLIENT, pMgr->version(), id))).get();
const auto RESOURCE = m_vPinches.emplace_back(std::make_unique<CPointerGesturePinch>(makeShared<CZwpPointerGesturePinchV1>(CLIENT, pMgr->version(), id))).get();
if (!RESOURCE->good()) {
pMgr->noMemory();
@@ -82,7 +82,7 @@ void CPointerGesturesProtocol::onGetPinchGesture(CZwpPointerGesturesV1* pMgr, ui
void CPointerGesturesProtocol::onGetSwipeGesture(CZwpPointerGesturesV1* pMgr, uint32_t id, wl_resource* pointer) {
const auto CLIENT = pMgr->client();
const auto RESOURCE = m_vSwipes.emplace_back(std::make_unique<CPointerGestureSwipe>(std::make_shared<CZwpPointerGestureSwipeV1>(CLIENT, pMgr->version(), id))).get();
const auto RESOURCE = m_vSwipes.emplace_back(std::make_unique<CPointerGestureSwipe>(makeShared<CZwpPointerGestureSwipeV1>(CLIENT, pMgr->version(), id))).get();
if (!RESOURCE->good()) {
pMgr->noMemory();
@@ -93,7 +93,7 @@ void CPointerGesturesProtocol::onGetSwipeGesture(CZwpPointerGesturesV1* pMgr, ui
void CPointerGesturesProtocol::onGetHoldGesture(CZwpPointerGesturesV1* pMgr, uint32_t id, wl_resource* pointer) {
const auto CLIENT = pMgr->client();
const auto RESOURCE = m_vHolds.emplace_back(std::make_unique<CPointerGestureHold>(std::make_shared<CZwpPointerGestureHoldV1>(CLIENT, pMgr->version(), id))).get();
const auto RESOURCE = m_vHolds.emplace_back(std::make_unique<CPointerGestureHold>(makeShared<CZwpPointerGestureHoldV1>(CLIENT, pMgr->version(), id))).get();
if (!RESOURCE->good()) {
pMgr->noMemory();