Add time delta to ctf-text

[babeltrace.git] / formats / ctf-text / ctf-text.c

diff --git a/formats/ctf-text/ctf-text.c b/formats/ctf-text/ctf-text.c
index 19e92fcabdf836fe909c703450f0133b8847b6a2..b1018c6576f2084fa3fb300225c8b1e72ea98271 100644 (file)
--- a/formats/ctf-text/ctf-text.c
+++ b/formats/ctf-text/ctf-text.c
@@ -45,7 +45,8 @@ int opt_all_field_names,
        opt_trace_domain,
        opt_trace_procname,
        opt_trace_vpid,
-       opt_loglevel;
+       opt_loglevel,
+       opt_delta = 1;
 
 enum field_item {
        ITEM_SCOPE,
@@ -200,6 +201,33 @@ int ctf_text_write_event(struct stream_pos *ppos,
                else
                        fprintf(pos->fp, " ");
        }
+       if (opt_delta && stream->has_timestamp) {
+               uint64_t delta, delta_sec, delta_nsec;
+
+               set_field_names_print(pos, ITEM_HEADER);
+               if (pos->print_names)
+                       fprintf(pos->fp, "delta = ");
+               else
+                       fprintf(pos->fp, "(");
+               if (pos->last_timestamp != -1ULL) {
+                       delta = stream->timestamp - pos->last_timestamp;
+                       delta_sec = delta / NSEC_PER_SEC;
+                       delta_nsec = delta % NSEC_PER_SEC;
+                       fprintf(pos->fp, "+%" PRIu64 ".%09" PRIu64,
+                               delta_sec, delta_nsec);
+               } else {
+                       fprintf(pos->fp, "+?.?????????");
+               }
+               if (!pos->print_names)
+                       fprintf(pos->fp, ")");
+
+               if (pos->print_names)
+                       fprintf(pos->fp, ", ");
+               else
+                       fprintf(pos->fp, " ");
+               pos->last_timestamp = stream->timestamp;
+       }
+
        if ((opt_trace_name || opt_all_field_names) && stream_class->trace->path[0] != '\0') {
                set_field_names_print(pos, ITEM_HEADER);
                if (pos->print_names) {
@@ -379,6 +407,7 @@ struct trace_descriptor *ctf_text_open_trace(const char *collection_path,
 
        pos = g_new0(struct ctf_text_stream_pos, 1);
 
+       pos->last_timestamp = -1ULL;
        switch (flags & O_ACCMODE) {
        case O_RDWR:
                if (!path)