kernel: Remove the Timer class

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).

1 files changed, 0 insertions, 84 deletions

diff --git a/src/core/hle/kernel/timer.cpp b/src/core/hle/kernel/timer.cpp
deleted file mode 100644
index 3afe60469f..0000000000
--- a/src/core/hle/kernel/timer.cpp
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright 2015 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include "common/assert.h"
-#include "common/logging/log.h"
-#include "core/core.h"
-#include "core/core_timing.h"
-#include "core/core_timing_util.h"
-#include "core/hle/kernel/handle_table.h"
-#include "core/hle/kernel/kernel.h"
-#include "core/hle/kernel/object.h"
-#include "core/hle/kernel/thread.h"
-#include "core/hle/kernel/timer.h"
-
-namespace Kernel {
-
-Timer::Timer(KernelCore& kernel) : WaitObject{kernel} {}
-Timer::~Timer() = default;
-
-SharedPtr<Timer> Timer::Create(KernelCore& kernel, ResetType reset_type, std::string name) {
-    SharedPtr<Timer> timer(new Timer(kernel));
-
-    timer->reset_type = reset_type;
-    timer->signaled = false;
-    timer->name = std::move(name);
-    timer->initial_delay = 0;
-    timer->interval_delay = 0;
-    timer->callback_handle = kernel.CreateTimerCallbackHandle(timer).Unwrap();
-
-    return timer;
-}
-
-bool Timer::ShouldWait(Thread* thread) const {
-    return !signaled;
-}
-
-void Timer::Acquire(Thread* thread) {
-    ASSERT_MSG(!ShouldWait(thread), "object unavailable!");
-
-    if (reset_type == ResetType::OneShot)
-        signaled = false;
-}
-
-void Timer::Set(s64 initial, s64 interval) {
-    // Ensure we get rid of any previous scheduled event
-    Cancel();
-
-    initial_delay = initial;
-    interval_delay = interval;
-
-    if (initial == 0) {
-        // Immediately invoke the callback
-        Signal(0);
-    } else {
-        CoreTiming::ScheduleEvent(CoreTiming::nsToCycles(initial), kernel.TimerCallbackEventType(),
-                                  callback_handle);
-    }
-}
-
-void Timer::Cancel() {
-    CoreTiming::UnscheduleEvent(kernel.TimerCallbackEventType(), callback_handle);
-}
-
-void Timer::Clear() {
-    signaled = false;
-}
-
-void Timer::Signal(int cycles_late) {
-    LOG_TRACE(Kernel, "Timer {} fired", GetObjectId());
-
-    signaled = true;
-
-    // Resume all waiting threads
-    WakeupAllWaitingThreads();
-
-    if (interval_delay != 0) {
-        // Reschedule the timer with the interval delay
-        CoreTiming::ScheduleEvent(CoreTiming::nsToCycles(interval_delay) - cycles_late,
-                                  kernel.TimerCallbackEventType(), callback_handle);
-    }
-}
-
-} // namespace Kernel