kernel: Divide Event into ReadableEvent and WritableEvent

More hardware accurate. On the actual system, there is a differentiation between the signaler and signalee, they form a client/server relationship much like ServerPort and ClientPort.

1 files changed, 48 insertions, 0 deletions

diff --git a/src/core/hle/kernel/readable_event.cpp b/src/core/hle/kernel/readable_event.cpp
new file mode 100644
index 000000000..164cffbdb
--- /dev/null
+++ b/src/core/hle/kernel/readable_event.cpp
@@ -0,0 +1,48 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include "common/assert.h"
+#include "core/hle/kernel/object.h"
+#include "core/hle/kernel/readable_event.h"
+#include "core/hle/kernel/thread.h"
+#include "core/hle/kernel/writable_event.h"
+
+namespace Kernel {
+
+ReadableEvent::ReadableEvent(KernelCore& kernel) : WaitObject{kernel} {}
+ReadableEvent::~ReadableEvent() = default;
+
+bool ReadableEvent::ShouldWait(Thread* thread) const {
+    return !writable_event->IsSignaled();
+}
+
+void ReadableEvent::Acquire(Thread* thread) {
+    ASSERT_MSG(!ShouldWait(thread), "object unavailable!");
+
+    writable_event->ResetOnAcquire();
+}
+
+void ReadableEvent::AddWaitingThread(SharedPtr<Thread> thread) {
+    writable_event->AddWaitingThread(thread);
+}
+
+void ReadableEvent::RemoveWaitingThread(Thread* thread) {
+    writable_event->RemoveWaitingThread(thread);
+}
+
+void ReadableEvent::Signal() {
+    writable_event->Signal();
+}
+
+void ReadableEvent::Clear() {
+    writable_event->Clear();
+}
+
+void ReadableEvent::WakeupAllWaitingThreads() {
+    writable_event->WakeupAllWaitingThreads();
+    writable_event->ResetOnWakeup();
+}
+
+} // namespace Kernel