Some of the tracefs library APIs may have bit mask parameters. To
simplify the usage of such APIs, generic bit manipulations macros are
added to the library API:
TRACEFS_BIT_SET
TRACEFS_BIT_TEST
TRACEFS_BIT_CLEAR
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@xxxxxxxxx>
---
include/tracefs.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/tracefs.h b/include/tracefs.h
index a2cda30..fa7f316 100644
--- a/include/tracefs.h
+++ b/include/tracefs.h
@@ -10,6 +10,10 @@
#include <sched.h>
#include <event-parse.h>
+#define TRACEFS_BIT_SET(M, B) do { (M) |= (1ULL << (B)); } while (0)
+#define TRACEFS_BIT_TEST(M, B) ((M) & (1ULL<<(B)))
+#define TRACEFS_BIT_CLEAR(M, B) do { (M) &= ~(1ULL << (B)); } while (0)
+
char *tracefs_get_tracing_file(const char *name);
void tracefs_put_tracing_file(char *name);
--
2.31.1
|