Add SIGTERM handler

Before calling g_unis_signal_add() with SIGTERM signal, the application core
cannot handle the sigterm signal. In .NET application case, the sub thread
releases the loaded shared library when getting the SIGTERM signal.
This patch adds a SigtermHandler class to handle the SIGTERM signal
before calling the AppCoreBase::Init().

Change-Id: I195e214c86920846a7d7a1828edc7ca03d6ac564
Signed-off-by: Hwankyu Jhun <h.jhun@samsung.com>

diff --git a/tizen-cpp/app-core-cpp/app_core_base.cc b/tizen-cpp/app-core-cpp/app_core_base.cc
index 9b41cb0..540b944 100644 (file)
--- a/tizen-cpp/app-core-cpp/app_core_base.cc
+++ b/tizen-cpp/app-core-cpp/app_core_base.cc
@@ -52,6 +52,7 @@
 #include <vector>
 
 #include "app-core-cpp/app_core_plugin_private.hh"
+#include "app-core-cpp/sigterm_handler_private.hh"
 #include "common/glib_private.hh"
 #include "common/log_private.hh"
 
@@ -146,6 +147,7 @@ class AnrMonitor {
 };
 
 AnrMonitor anr_monitor;
+internal::SigtermHandler sigterm_handler;
 
 enum TizenProfile {
   Unknown = 0x00,
@@ -1276,6 +1278,7 @@ void AppCoreBase::Init(int argc, char** argv) {
   impl_->argc_ = argc;
   impl_->argv_ = argv;
   traceBegin(TTRACE_TAG_APPLICATION_MANAGER, "APPCORE:OPS_INIT");
+  sigterm_handler.Restore();
   if (impl_->loop_delegator_)
     impl_->loop_delegator_->OnLoopInit(argc, argv);
   else

diff --git a/tizen-cpp/app-core-cpp/sigterm_handler_private.cc b/tizen-cpp/app-core-cpp/sigterm_handler_private.cc
new file mode 100644 (file)
index 0000000..7c602cf
--- /dev/null
+++ b/tizen-cpp/app-core-cpp/sigterm_handler_private.cc
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2023 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "app-core-cpp/sigterm_handler_private.hh"
+
+#include <errno.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <sys/types.h>
+
+#include "common/log_private.hh"
+
+namespace tizen_cpp {
+namespace internal {
+namespace {
+
+struct sigaction old_action;
+bool restored = true;
+
+void RestoreSigaction() {
+  if (restored)
+    return;
+
+  if (sigaction(SIGTERM, &old_action, nullptr) != 0)
+    _W("sigaction() is failed. errno(%d)", errno);
+
+  restored = true;
+}
+
+void SignalHandler(int signo) {
+  _E("SIGTERM(%d) received", signo);
+  RestoreSigaction();
+  raise(signo);
+  exit(0);
+}
+
+void ChangeSigaction() {
+  struct sigaction action;
+  memset(&action, '\0', sizeof(action));
+  sigemptyset(&action.sa_mask);
+  action.sa_flags = SA_RESTART;
+  action.sa_handler = SignalHandler;
+
+  if (sigaction(SIGTERM, &action, &old_action) != 0)
+    _E("sigaction() is failed. errno(%d)", errno);
+
+  restored = false;
+}
+
+}  // namespace
+
+SigtermHandler::SigtermHandler() {
+  ChangeSigaction();
+}
+
+SigtermHandler::~SigtermHandler() {
+  Restore();
+}
+
+void SigtermHandler::Restore() {
+  RestoreSigaction();
+}
+
+}  // namespace internal
+}  // namespace tizen_cpp

diff --git a/tizen-cpp/app-core-cpp/sigterm_handler_private.hh b/tizen-cpp/app-core-cpp/sigterm_handler_private.hh
new file mode 100644 (file)
index 0000000..5a50bbd
--- /dev/null
+++ b/tizen-cpp/app-core-cpp/sigterm_handler_private.hh
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2023 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef TIZEN_CPP_APP_CORE_CPP_SIGTERM_HANDLER_PRIVATE_HH_
+#define TIZEN_CPP_APP_CORE_CPP_SIGTERM_HANDLER_PRIVATE_HH_
+
+namespace tizen_cpp {
+namespace internal {
+
+class SigtermHandler {
+ public:
+  SigtermHandler();
+  ~SigtermHandler();
+
+  SigtermHandler(const SigtermHandler&) = delete;
+  SigtermHandler& operator = (const SigtermHandler&) = delete;
+  SigtermHandler(SigtermHandler&&) = delete;
+  SigtermHandler& operator = (SigtermHandler&&) = delete;
+
+  void Restore();
+};
+
+}  // namespace internal
+}  // namespace tizen_cpp
+
+#endif  // TIZEN_CPP_APP_CORE_CPP_SIGTERM_HANDLER_PRIVATE_HH_