#include <ftw.h>
#include <dirent.h>
#include <unistd.h>
+#include <inttypes.h>
#include <babeltrace/ctf-ir/metadata.h> /* for clocks */
v = t_clock->name;
else
v = t_clock->uuid;
- if (v)
- g_hash_table_insert(tc_clocks,
- (gpointer) (unsigned long) v,
- value);
+ if (v) {
+ struct ctf_clock *tc_clock;
+
+ tc_clock = g_hash_table_lookup(tc_clocks,
+ (gpointer) (unsigned long) v);
+ if (!tc_clock) {
+ g_hash_table_insert(tc_clocks,
+ (gpointer) (unsigned long) v,
+ value);
+ } else {
+ int64_t diff_ns;
+
+ /*
+ * Check that the offsets match. If not, warn
+ * the user that we do an arbitrary choice.
+ */
+ diff_ns = tc_clock->offset_s;
+ diff_ns -= t_clock->offset_s;
+ diff_ns *= 1000000000ULL;
+ diff_ns += tc_clock->offset;
+ diff_ns -= t_clock->offset;
+ printf_debug("Clock \"%s\" offset between traces has a delta of %" PRIu64 " ns.",
+ g_quark_to_string(tc_clock->name),
+ diff_ns < 0 ? -diff_ns : diff_ns);
+ if (diff_ns > 10000) {
+ fprintf(stderr, "[warning] Clock \"%s\" offset differs between traces (delta %" PRIu64 " ns). Choosing one arbitrarily.\n",
+ g_quark_to_string(tc_clock->name),
+ diff_ns < 0 ? -diff_ns : diff_ns);
+ }
+ }
+ }
}
/*