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kernel: Remove the Timer class

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A holdover from citra, the Horizon kernel on the switch has no
prominent kernel object that functions as a timer. At least not
to the degree of sophistication that this class provided.

As such, this can be removed entirely. This class also wasn't used at
all in any meaningful way within the core, so this was just code sitting
around doing nothing. This also allows removing a few things from the
main KernelCore class that allows it to use slightly less resources
overall (though very minor and not anything really noticeable).
This commit is contained in:
Lioncash 2019-01-31 23:05:00 -05:00
parent b0b027d2d0
commit 414cc1eb1f
9 changed files with 0 additions and 259 deletions
src/core/hle/kernel
kernel.cpp

42
src/core/hle/kernel/kernel.cpp
View file

@ -18,7 +18,6 @@
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/resource_limit.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/kernel/timer.h"
#include "core/hle/lock.h"
#include "core/hle/result.h"
@ -86,27 +85,12 @@ static void ThreadWakeupCallback(u64 thread_handle, [[maybe_unused]] int cycles_
}
}
/// The timer callback event, called when a timer is fired
static void TimerCallback(u64 timer_handle, int cycles_late) {
const auto proper_handle = static_cast<Handle>(timer_handle);
const auto& system = Core::System::GetInstance();
SharedPtr<Timer> timer = system.Kernel().RetrieveTimerFromCallbackHandleTable(proper_handle);
if (timer == nullptr) {
LOG_CRITICAL(Kernel, "Callback fired for invalid timer {:016X}", timer_handle);
return;
}
timer->Signal(cycles_late);
}
struct KernelCore::Impl {
void Initialize(KernelCore& kernel) {
Shutdown();
InitializeSystemResourceLimit(kernel);
InitializeThreads();
InitializeTimers();
}
void Shutdown() {
@ -122,9 +106,6 @@ struct KernelCore::Impl {
thread_wakeup_callback_handle_table.Clear();
thread_wakeup_event_type = nullptr;
timer_callback_handle_table.Clear();
timer_callback_event_type = nullptr;
named_ports.clear();
}
@ -146,11 +127,6 @@ struct KernelCore::Impl {
CoreTiming::RegisterEvent("ThreadWakeupCallback", ThreadWakeupCallback);
}
void InitializeTimers() {
timer_callback_handle_table.Clear();
timer_callback_event_type = CoreTiming::RegisterEvent("TimerCallback", TimerCallback);
}
std::atomic<u32> next_object_id{0};
std::atomic<u64> next_process_id{Process::ProcessIDMin};
std::atomic<u64> next_thread_id{1};
@ -161,12 +137,6 @@ struct KernelCore::Impl {
SharedPtr<ResourceLimit> system_resource_limit;
/// The event type of the generic timer callback event
CoreTiming::EventType* timer_callback_event_type = nullptr;
// TODO(yuriks): This can be removed if Timer objects are explicitly pooled in the future,
// allowing us to simply use a pool index or similar.
Kernel::HandleTable timer_callback_handle_table;
CoreTiming::EventType* thread_wakeup_event_type = nullptr;
// TODO(yuriks): This can be removed if Thread objects are explicitly pooled in the future,
// allowing us to simply use a pool index or similar.
@ -198,10 +168,6 @@ SharedPtr<Thread> KernelCore::RetrieveThreadFromWakeupCallbackHandleTable(Handle
return impl->thread_wakeup_callback_handle_table.Get<Thread>(handle);
}
SharedPtr<Timer> KernelCore::RetrieveTimerFromCallbackHandleTable(Handle handle) const {
return impl->timer_callback_handle_table.Get<Timer>(handle);
}
void KernelCore::AppendNewProcess(SharedPtr<Process> process) {
impl->process_list.push_back(std::move(process));
}
@ -247,18 +213,10 @@ u64 KernelCore::CreateNewProcessID() {
return impl->next_process_id++;
}
ResultVal<Handle> KernelCore::CreateTimerCallbackHandle(const SharedPtr<Timer>& timer) {
return impl->timer_callback_handle_table.Create(timer);
}
CoreTiming::EventType* KernelCore::ThreadWakeupCallbackEventType() const {
return impl->thread_wakeup_event_type;
}
CoreTiming::EventType* KernelCore::TimerCallbackEventType() const {
return impl->timer_callback_event_type;
}
Kernel::HandleTable& KernelCore::ThreadWakeupCallbackHandleTable() {
return impl->thread_wakeup_callback_handle_table;
}