[PATCH 2/4] rt-tests: rt-utils: Add function to close trace fds

[Kurt Kanzenbach <kurt@xxxxxxxxxxxxx>]

Currently the trace fds are not closed. Add a function for it.

Signed-off-by: Kurt Kanzenbach <kurt@xxxxxxxxxxxxx>
---
 src/include/rt-utils.h |  1 +
 src/lib/rt-utils.c     | 14 ++++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/src/include/rt-utils.h b/src/include/rt-utils.h
index 4ed1cbc53ece..c6fb220cdb0a 100644
--- a/src/include/rt-utils.h
+++ b/src/include/rt-utils.h
@@ -31,6 +31,7 @@ int parse_time_string(char *val);
 
 void enable_trace_mark(void);
 void tracemark(char *fmt, ...) __attribute__((format(printf, 1, 2)));
+void disable_trace_mark(void);
 
 #define MSEC_PER_SEC		1000
 #define USEC_PER_SEC		1000000
diff --git a/src/lib/rt-utils.c b/src/lib/rt-utils.c
index 85d41b9542a2..a30e1e4ce436 100644
--- a/src/lib/rt-utils.c
+++ b/src/lib/rt-utils.c
@@ -390,6 +390,15 @@ static void open_tracemark_fd(void)
 	}
 }
 
+static void close_tracemark_fd(void)
+{
+	if (tracemark_fd > 0)
+		close(tracemark_fd);
+
+	if (trace_fd > 0)
+		close(trace_fd);
+}
+
 static int trace_file_exists(char *name)
 {
 	struct stat sbuf;
@@ -437,3 +446,8 @@ void enable_trace_mark(void)
 	debugfs_prepare();
 	open_tracemark_fd();
 }
+
+void disable_trace_mark(void)
+{
+	close_tracemark_fd();
+}
-- 
2.26.2