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Merge pull request #5231 from hamish-milne/fix-address-arbiter-serialization

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Fix Address Arbiter serialization
This commit is contained in:
Ben 2020-05-09 12:33:35 +02:00 committed by GitHub
commit 8a69172570
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2 changed files with 64 additions and 11 deletions
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46
src/core/hle/kernel/address_arbiter.cpp
View File

@ -16,8 +16,6 @@
////////////////////////////////////////////////////////////////////////////////////////////////////
// Kernel namespace
SERIALIZE_EXPORT_IMPL(Kernel::AddressArbiter)
namespace Kernel {
void AddressArbiter::WaitThread(std::shared_ptr<Thread> thread, VAddr wait_address) {
@ -69,7 +67,8 @@ std::shared_ptr<Thread> AddressArbiter::ResumeHighestPriorityThread(VAddr addres
return thread;
}
AddressArbiter::AddressArbiter(KernelSystem& kernel) : Object(kernel), kernel(kernel) {}
AddressArbiter::AddressArbiter(KernelSystem& kernel)
: Object(kernel), kernel(kernel), timeout_callback(std::make_shared<Callback>(*this)) {}
AddressArbiter::~AddressArbiter() {}
std::shared_ptr<AddressArbiter> KernelSystem::CreateAddressArbiter(std::string name) {
@ -80,6 +79,24 @@ std::shared_ptr<AddressArbiter> KernelSystem::CreateAddressArbiter(std::string n
return address_arbiter;
}
class AddressArbiter::Callback : public WakeupCallback {
public:
explicit Callback(AddressArbiter& _parent) : parent(_parent) {}
AddressArbiter& parent;
void WakeUp(ThreadWakeupReason reason, std::shared_ptr<Thread> thread,
std::shared_ptr<WaitObject> object) override {
parent.WakeUp(reason, std::move(thread), std::move(object));
}
private:
template <class Archive>
void serialize(Archive& ar, const unsigned int) {
ar& boost::serialization::base_object<WakeupCallback>(*this);
}
friend class boost::serialization::access;
};
void AddressArbiter::WakeUp(ThreadWakeupReason reason, std::shared_ptr<Thread> thread,
std::shared_ptr<WaitObject> object) {
ASSERT(reason == ThreadWakeupReason::Timeout);
@ -90,9 +107,6 @@ void AddressArbiter::WakeUp(ThreadWakeupReason reason, std::shared_ptr<Thread> t
ResultCode AddressArbiter::ArbitrateAddress(std::shared_ptr<Thread> thread, ArbitrationType type,
VAddr address, s32 value, u64 nanoseconds) {
auto timeout_callback = std::dynamic_pointer_cast<WakeupCallback>(shared_from_this());
switch (type) {
// Signal thread(s) waiting for arbitrate address...
@ -157,3 +171,23 @@ ResultCode AddressArbiter::ArbitrateAddress(std::shared_ptr<Thread> thread, Arbi
}
} // namespace Kernel
namespace boost::serialization {
template <class Archive>
void save_construct_data(Archive& ar, const Kernel::AddressArbiter::Callback* t,
const unsigned int) {
ar << Kernel::SharedFrom(&t->parent);
}
template <class Archive>
void load_construct_data(Archive& ar, Kernel::AddressArbiter::Callback* t, const unsigned int) {
std::shared_ptr<Kernel::AddressArbiter> parent;
ar >> parent;
::new (t) Kernel::AddressArbiter::Callback(*parent);
}
} // namespace boost::serialization
SERIALIZE_EXPORT_IMPL(Kernel::AddressArbiter)
SERIALIZE_EXPORT_IMPL(Kernel::AddressArbiter::Callback)

29
src/core/hle/kernel/address_arbiter.h
View File

@ -59,8 +59,7 @@ public:
ResultCode ArbitrateAddress(std::shared_ptr<Thread> thread, ArbitrationType type, VAddr address,
s32 value, u64 nanoseconds);
void WakeUp(ThreadWakeupReason reason, std::shared_ptr<Thread> thread,
std::shared_ptr<WaitObject> object);
class Callback;
private:
KernelSystem& kernel;
@ -78,20 +77,40 @@ private:
/// Threads waiting for the address arbiter to be signaled.
std::vector<std::shared_ptr<Thread>> waiting_threads;
std::shared_ptr<Callback> timeout_callback;
void WakeUp(ThreadWakeupReason reason, std::shared_ptr<Thread> thread,
std::shared_ptr<WaitObject> object);
class DummyCallback : public WakeupCallback {
public:
void WakeUp(ThreadWakeupReason reason, std::shared_ptr<Thread> thread,
std::shared_ptr<WaitObject> object) override {}
};
friend class boost::serialization::access;
template <class Archive>
void serialize(Archive& ar, const unsigned int file_version) {
ar& boost::serialization::base_object<Object>(*this);
if (file_version > 0) {
ar& boost::serialization::base_object<WakeupCallback>(*this);
if (file_version == 1) {
// This rigmarole is needed because in past versions, AddressArbiter inherited
// WakeupCallback But it turns out this breaks shared_from_this, so we split it out.
// Using a dummy class to deserialize a base_object allows compatibility to be
// maintained.
DummyCallback x;
ar& boost::serialization::base_object<WakeupCallback>(x);
}
ar& name;
ar& waiting_threads;
if (file_version > 1) {
ar& timeout_callback;
}
}
};
} // namespace Kernel
BOOST_CLASS_EXPORT_KEY(Kernel::AddressArbiter)
BOOST_CLASS_VERSION(Kernel::AddressArbiter, 1)
BOOST_CLASS_EXPORT_KEY(Kernel::AddressArbiter::Callback)
BOOST_CLASS_VERSION(Kernel::AddressArbiter, 2)
CONSTRUCT_KERNEL_OBJECT(Kernel::AddressArbiter)