API for basic display of sched_trace data

1 files changed, 39 insertions, 0 deletions

diff --git a/src/sched_trace.c b/src/sched_trace.c
index 17d3d06..9f532f3 100644
--- a/src/sched_trace.c
+++ b/src/sched_trace.c
@@ -45,3 +45,42 @@ static int map_trace(const char *name, void **start, void **end, size_t *size)
                 *end = *start + *size;
         return ret;
 }
+
+static const char* event_names[] = {
+        "INVALID",
+        "NAME",
+        "PARAM",
+        "RELEASE",
+        "ASSIGNED",
+        "SWITCH_TO",
+        "SWITCH_FROM",
+        "COMPLETION",
+        "BLOCK",
+        "RESUME",
+        "INVALID"
+};
+
+#define ST_INVALID (ST_RESUME + 1)
+
+const char* event2name(unsigned int id)
+{
+        if (id >= ST_INVALID)
+                id = ST_INVALID;
+        return event_names[id];
+}
+
+void print_header(struct st_trace_header* hdr)
+{
+        printf("%-14s on CPU %u for %5u/%5u",
+               event2name(hdr->type),
+               hdr->cpu, hdr->pid, hdr->job);
+}
+
+void print_all(struct st_event_record *rec, unsigned int count)
+{
+        unsigned int i;
+        for (i = 0; i < count; i++) {
+                print_header(&rec[i].hdr);
+                printf("\n");
+        }
+}