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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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12
src/protocols/InputMethodV2.cpp
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@@ -23,7 +23,7 @@ CInputMethodKeyboardGrabV2::CInputMethodKeyboardGrabV2(SP<CZwpInputMethodKeyboar
CInputMethodKeyboardGrabV2::~CInputMethodKeyboardGrabV2() {
if (!owner.expired())
std::erase_if(owner.lock()->grabs, [](const auto& g) { return g.expired(); });
std::erase_if(owner->grabs, [](const auto& g) { return g.expired(); });
}
void CInputMethodKeyboardGrabV2::sendKeyboardData(wlr_keyboard* keyboard) {
@@ -131,7 +131,7 @@ CInputMethodPopupV2::CInputMethodPopupV2(SP<CZwpInputPopupSurfaceV2> resource_,
CInputMethodPopupV2::~CInputMethodPopupV2() {
if (!owner.expired())
std::erase_if(owner.lock()->popups, [](const auto& p) { return p.expired(); });
std::erase_if(owner->popups, [](const auto& p) { return p.expired(); });
events.destroy.emit();
}
@@ -193,7 +193,7 @@ CInputMethodV2::CInputMethodV2(SP<CZwpInputMethodV2> resource_) : resource(resou
resource->setGetInputPopupSurface([this](CZwpInputMethodV2* r, uint32_t id, wl_resource* surface) {
const auto RESOURCE = PROTO::ime->m_vPopups.emplace_back(
std::make_shared<CInputMethodPopupV2>(std::make_shared<CZwpInputPopupSurfaceV2>(r->client(), r->version(), id), self.lock(), wlr_surface_from_resource(surface)));
makeShared<CInputMethodPopupV2>(makeShared<CZwpInputPopupSurfaceV2>(r->client(), r->version(), id), self.lock(), wlr_surface_from_resource(surface)));
if (!RESOURCE->good()) {
r->noMemory();
@@ -209,8 +209,8 @@ CInputMethodV2::CInputMethodV2(SP<CZwpInputMethodV2> resource_) : resource(resou
});
resource->setGrabKeyboard([this](CZwpInputMethodV2* r, uint32_t id) {
const auto RESOURCE = PROTO::ime->m_vGrabs.emplace_back(
std::make_shared<CInputMethodKeyboardGrabV2>(std::make_shared<CZwpInputMethodKeyboardGrabV2>(r->client(), r->version(), id), self.lock()));
const auto RESOURCE =
PROTO::ime->m_vGrabs.emplace_back(makeShared<CInputMethodKeyboardGrabV2>(makeShared<CZwpInputMethodKeyboardGrabV2>(r->client(), r->version(), id), self.lock()));
if (!RESOURCE->good()) {
r->noMemory();
@@ -364,7 +364,7 @@ void CInputMethodV2Protocol::destroyResource(CInputMethodV2* ime) {
}
void CInputMethodV2Protocol::onGetIME(CZwpInputMethodManagerV2* mgr, wl_resource* seat, uint32_t id) {
const auto RESOURCE = m_vIMEs.emplace_back(std::make_shared<CInputMethodV2>(std::make_shared<CZwpInputMethodV2>(mgr->client(), mgr->version(), id)));
const auto RESOURCE = m_vIMEs.emplace_back(makeShared<CInputMethodV2>(makeShared<CZwpInputMethodV2>(mgr->client(), mgr->version(), id)));
if (!RESOURCE->good()) {
mgr->noMemory();