kern: Implement SvcManageNamedPort

libraries/libmesosphere/source/kern_k_server_port.cpp

@@ -0,0 +1,96 @@
+/*
+ * 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/>.
+ */
+#include <mesosphere.hpp>
+
+namespace ams::kern {
+
+    void KServerPort::Initialize(KPort *parent) {
+        /* Set member variables. */
+        this->parent = parent;
+    }
+
+    bool KServerPort::IsLight() const {
+        return this->GetParent()->IsLight();
+    }
+
+    void KServerPort::CleanupSessions() {
+        /* Ensure our preconditions are met. */
+        MESOSPHERE_ASSERT(this->IsLight()  || this->session_list.empty());
+        MESOSPHERE_ASSERT(!this->IsLight() || this->light_session_list.empty());
+
+        /* Cleanup the session list. */
+        while (true) {
+            /* Get the last session in the list */
+            KServerSession *session = nullptr;
+            {
+                KScopedSchedulerLock sl;
+                while (!this->session_list.empty()) {
+                    session = std::addressof(this->session_list.front());
+                    this->session_list.pop_front();
+                }
+            }
+
+            /* Close the session. */
+            if (session != nullptr) {
+                session->Close();
+            } else {
+                break;
+            }
+        }
+
+        /* Cleanup the light session list. */
+        while (true) {
+            /* Get the last session in the list */
+            KLightServerSession *session = nullptr;
+            {
+                KScopedSchedulerLock sl;
+                while (!this->light_session_list.empty()) {
+                    session = std::addressof(this->light_session_list.front());
+                    this->light_session_list.pop_front();
+                }
+            }
+
+            /* Close the session. */
+            if (session != nullptr) {
+                session->Close();
+            } else {
+                break;
+            }
+        }
+    }
+
+    void KServerPort::Destroy() {
+        /* Note with our parent that we're closed. */
+        this->parent->OnClientClosed();
+
+        /* Perform necessary cleanup of our session lists. */
+        this->CleanupSessions();
+
+        /* Close our reference to our parent. */
+        this->parent->Close();
+    }
+
+    bool KServerPort::IsSignaled() const {
+        /* TODO: Check preconditions later. */
+        MESOSPHERE_ASSERT_THIS();
+        if (this->IsLight()) {
+            return !this->light_session_list.empty();
+        } else {
+            return this->session_list.empty();
+        }
+    }
+
+}