htc: implement htcmisc rpc tasks

libraries/libstratosphere/source/htc/server/rpc/htc_rpc_tasks.hpp

@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2018-2020 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+#include <stratosphere.hpp>
+
+namespace ams::htc::server::rpc {
+
+    enum class RpcTaskCancelReason {
+        None = 0,
+        /* ... */
+    };
+
+    enum class RpcTaskState {
+        Started   = 0,
+        Completed = 1,
+        Cancelled = 2,
+        Notified  = 3,
+    };
+
+    class Task {
+        private:
+            RpcTaskState m_state;
+            RpcTaskCancelReason m_cancel_reason;
+            os::Event m_event;
+        public:
+            Task() : m_state(RpcTaskState::Started), m_cancel_reason(RpcTaskCancelReason::None), m_event(os::EventClearMode_AutoClear) { /* ... */ }
+            virtual ~Task() { /* ... */ }
+        public:
+            void SetTaskState(RpcTaskState state) { m_state = state; }
+            RpcTaskState GetTaskState() const { return m_state; }
+
+            RpcTaskCancelReason GetTaskCancelReason() const { return m_cancel_reason; }
+
+            os::EventType *GetEvent() { return m_event.GetBase(); }
+
+            void Notify() {
+                AMS_ASSERT(m_state == RpcTaskState::Started);
+
+                m_state = RpcTaskState::Notified;
+            }
+
+            void Complete() {
+                AMS_ASSERT(m_state == RpcTaskState::Started || m_state == RpcTaskState::Notified);
+
+                m_state = RpcTaskState::Completed;
+                m_event.Signal();
+            }
+        public:
+            virtual void Cancel(RpcTaskCancelReason reason) {
+                m_state         = RpcTaskState::Cancelled;
+                m_cancel_reason = reason;
+                m_event.Signal();
+            }
+
+            virtual Result ProcessResponse(const char *data, size_t size) {
+                return ResultSuccess();
+            }
+
+            virtual Result CreateRequest(size_t *out, char *data, size_t size, u32 task_id) {
+                return ResultSuccess();
+            }
+
+            virtual Result ProcessNotification(const char *data, size_t size) {
+                return ResultSuccess();
+            }
+
+            virtual Result CreateNotification(size_t *out, char *data, size_t size, u32 task_id) {
+                return ResultSuccess();
+            }
+
+            virtual bool IsReceiveBufferRequired() {
+                return false;
+            }
+
+            virtual bool IsSendBufferRequired() {
+                return false;
+            }
+
+            virtual os::SystemEventType *GetSystemEvent() {
+                return nullptr;
+            }
+    };
+
+}