1 files changed, 47 insertions, 0 deletions
diff --git a/act_mask.c b/act_mask.c
new file mode 100644
index 0000000..8890887
--- /dev/null
+++ b/act_mask.c
@@ -0,0 +1,47 @@
+#include <string.h>
+#include "blktrace.h"
+
+#define DECLARE_MASK_MAP(mask)          { BLK_TC_##mask, #mask, "BLK_TC_"#mask }
+#define COMPARE_MASK_MAP(mmp, str)                                      \
+        (!strcasecmp((mmp)->short_form, (str)) ||                      \
+         !strcasecmp((mmp)->long_form, (str)))
+
+struct mask_map {
+	int mask;
+	char *short_form;
+	char *long_form;
+};
+
+static struct mask_map mask_maps[] = {
+	DECLARE_MASK_MAP(READ),
+	DECLARE_MASK_MAP(WRITE),
+	DECLARE_MASK_MAP(BARRIER),
+	DECLARE_MASK_MAP(SYNC),
+	DECLARE_MASK_MAP(QUEUE),
+	DECLARE_MASK_MAP(REQUEUE),
+	DECLARE_MASK_MAP(ISSUE),
+	DECLARE_MASK_MAP(COMPLETE),
+	DECLARE_MASK_MAP(FS),
+	DECLARE_MASK_MAP(PC),
+	DECLARE_MASK_MAP(NOTIFY),
+	DECLARE_MASK_MAP(AHEAD),
+	DECLARE_MASK_MAP(META),
+	DECLARE_MASK_MAP(DISCARD),
+	DECLARE_MASK_MAP(DRV_DATA),
+};
+
+int find_mask_map(char *string)
+{
+	unsigned int i;
+
+	for (i = 0; i < sizeof(mask_maps)/sizeof(mask_maps[0]); i++)
+		if (COMPARE_MASK_MAP(&mask_maps[i], string))
+			return mask_maps[i].mask;
+
+	return -1;
+}
+
+int valid_act_opt(int x)
+{
+	return (1 <= x) && (x < (1 << BLK_TC_SHIFT));
+}