Merge pull request #49 from saturneric/develop-2.0.5

v2.0.5

1 files changed, 31 insertions, 9 deletions

diff --git a/src/signal.cpp b/src/signal.cpp
index efcd8146..135bdead 100644
--- a/src/signal.cpp
+++ b/src/signal.cpp
@@ -1,4 +1,6 @@
 /**
+ * Copyright (C) 2021 Saturneric
+ *
  * This file is part of GpgFrontend.
  *
  * GpgFrontend is free software: you can redistribute it and/or modify
@@ -6,30 +8,50 @@
  * the Free Software Foundation, either version 3 of the License, or
  * (at your option) any later version.
  *
- * Foobar is distributed in the hope that it will be useful,
+ * GpgFrontend is distributed in the hope that 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 Foobar.  If not, see <https://www.gnu.org/licenses/>.
+ * along with GpgFrontend. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The initial version of the source code is inherited from
+ * the gpg4usb project, which is under GPL-3.0-or-later.
  *
- * The initial version of the source code is inherited from gpg4usb-team.
- * Their source code version also complies with GNU General Public License.
+ * All the source code of GpgFrontend was modified and released by
+ * Saturneric<[email protected]> starting on May 12, 2021.
  *
- * The source code version of this software was modified and released
- * by Saturneric<[email protected]> starting on May 12, 2021.
+ * SPDX-License-Identifier: GPL-3.0-or-later
  *
  */
 
-#include <easyloggingpp/easylogging++.h>
-
 #include <csetjmp>
 
+#include "GpgFrontend.h"
+
 extern jmp_buf recover_env;
 
+/**
+ * @brief handle the signal caught.
+ *
+ * @param sig signal number
+ */
 void handle_signal(int sig) {
-  LOG(INFO) << "signal caught";
+  static int _repeat_handle_num = 1, last_sig = sig;
+  LOG(INFO) << "signal caught" << sig;
+
+  if (last_sig == sig)
+    _repeat_handle_num++;
+  else
+    _repeat_handle_num = 1, last_sig = sig;
+
+  if (_repeat_handle_num > 3) {
+    LOG(INFO) << "The same signal appears three times, execute the termination "
+                 "operation. ";
+    exit(-1);
+  }
+
 #ifndef WINDOWS
   siglongjmp(recover_env, 1);
 #else