GlobalEvents: move code to class WakeFD

1 files changed, 68 insertions, 0 deletions

diff --git a/src/event/WakeFD.cxx b/src/event/WakeFD.cxx
new file mode 100644
index 00000000..7314342d
--- /dev/null
+++ b/src/event/WakeFD.cxx
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2003-2013 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "WakeFD.hxx"
+#include "fd_util.h"
+#include "gcc.h"
+
+#include <unistd.h>
+
+bool
+WakeFD::Create()
+{
+	assert(fds[0] == -1);
+	assert(fds[1] == -1);
+
+	return pipe_cloexec_nonblock(fds) >= 0;
+}
+
+void
+WakeFD::Destroy()
+{
+#ifndef WIN32
+	/* By some strange reason this call hangs on Win32 */
+	close(fds[0]);
+#endif
+	close(fds[1]);
+
+#ifndef NDEBUG
+	fds[0] = -1;
+	fds[1] = -1;
+#endif
+}
+
+bool
+WakeFD::Read()
+{
+	assert(fds[0] >= 0);
+	assert(fds[1] >= 0);
+
+	char buffer[256];
+	return read(fds[0], buffer, sizeof(buffer)) > 0;
+}
+
+void
+WakeFD::Write()
+{
+	assert(fds[0] >= 0);
+	assert(fds[1] >= 0);
+
+	gcc_unused ssize_t nbytes = write(fds[1], "", 1);
+}