Import Upstream version 2.0.0+dfsgupstream/2.0.0+dfsg

1 files changed, 49 insertions, 0 deletions

diff --git a/src/lib/base/NonBlockingStream.h b/src/lib/base/NonBlockingStream.h
new file mode 100644
index 0000000..4c27762
--- /dev/null
+++ b/src/lib/base/NonBlockingStream.h
@@ -0,0 +1,49 @@
+/*
+ * barrier -- mouse and keyboard sharing utility
+ * Copyright (C) 2008 Debauchee Open Source Group
+ *
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file LICENSE that should have accompanied this file.
+ *
+ * This package 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+// windows doesn't have a unistd.h so this class won't work as-written.
+// at the moment barrier doesn't need this functionality on windows so
+// it's left as a stub to be optimized out
+#if defined(_WIN32)
+
+class NonBlockingStream
+{
+public:
+    bool try_read_char(char &ch) const { return false; };
+};
+
+#else // non-windows platforms
+
+struct termios;
+
+class NonBlockingStream
+{
+public:
+    explicit NonBlockingStream(int fd = 0);
+    ~NonBlockingStream();
+
+    bool try_read_char(char &ch) const;
+
+private:
+    int _fd;
+    termios * _p_ta_previous;
+    int _cntl_previous;
+};
+
+#endif