Rename C++ header files to .hpp

[lttng-tools.git] / src / common / daemonize.hpp

diff --git a/src/common/daemonize.hpp b/src/common/daemonize.hpp
new file mode 100644 (file)
index 0000000..d1ec1cb
--- /dev/null
+++ b/src/common/daemonize.hpp
@@ -0,0 +1,28 @@
+#ifndef LTTNG_DAEMONIZE_H
+#define LTTNG_DAEMONIZE_H
+
+/*
+ * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#include <unistd.h>
+#include <common/macros.hpp>
+
+/*
+ * Daemonize this process by forking and making the parent wait for the child
+ * to signal it indicating readiness. Once received, the parent successfully
+ * quits.
+ *
+ * The child process undergoes the same action that daemon(3) does meaning
+ * setsid, chdir, and dup /dev/null into 0, 1 and 2.
+ *
+ * Return 0 on success else -1 on error.
+ */
+int lttng_daemonize(pid_t *child_ppid, int *completion_flag,
+               int close_fds);
+
+#endif /* LTTNG_DAEMONIZE_H */