kern: implement SvcCancelSynchronization

2020-07-20 02:27:53 -07:00
parent 5b8a20dbf7
commit 26df56cd87
3 changed files with 35 additions and 2 deletions
--- a/libraries/libmesosphere/source/kern_k_thread.cpp
+++ b/libraries/libmesosphere/source/kern_k_thread.cpp
@@ -439,6 +439,27 @@ namespace ams::kern {
        }
    }

+    void KThread::WaitCancel() {
+        MESOSPHERE_ASSERT_THIS();
+
+        KScopedSchedulerLock sl;
+
+        /* Check if we're waiting and cancellable. */
+        if (this->GetState() == ThreadState_Waiting && this->cancellable) {
+            if (this->sleeping_queue != nullptr) {
+                /* TODO: Cancel light IPC. */
+                MESOSPHERE_UNIMPLEMENTED();
+            } else {
+                this->SetSyncedObject(nullptr, svc::ResultCancelled());
+                this->SetState(ThreadState_Runnable);
+                this->wait_cancelled = false;
+            }
+        } else {
+            /* Otherwise, note that we cancelled a wait. */
+            this->wait_cancelled = true;
+        }
+    }
+
    void KThread::TrySuspend() {
        MESOSPHERE_ASSERT_THIS();
        MESOSPHERE_ASSERT(KScheduler::IsSchedulerLockedByCurrentThread());