Handle negative time and offset from Epoch

[babeltrace.git] / formats / ctf / events-private.h

diff --git a/formats/ctf/events-private.h b/formats/ctf/events-private.h
index 9bea75d4f6bad5a2895204bbb08c4fe17d3a9d9d..c47fd7d85deaf5372a7adaf2fc3200e4461ca161 100644 (file)
--- a/formats/ctf/events-private.h
+++ b/formats/ctf/events-private.h
@@ -35,20 +35,20 @@
 #include <babeltrace/clock-internal.h>
 
 static inline
-uint64_t ctf_get_real_timestamp(struct ctf_stream_definition *stream,
-                       uint64_t timestamp)
+int64_t ctf_get_real_timestamp(struct ctf_stream_definition *stream,
+                       uint64_t ts_cycles)
 {
-       uint64_t ts_nsec;
+       int64_t ts_nsec;
        struct ctf_trace *trace = stream->stream_class->trace;
        struct trace_collection *tc = trace->parent.collection;
-       uint64_t tc_offset;
+       int64_t tc_offset;
 
        if (tc->clock_use_offset_avg)
                tc_offset = tc->single_clock_offset_avg;
        else
                tc_offset = clock_offset_ns(trace->parent.single_clock);
 
-       ts_nsec = clock_cycles_to_ns(stream->current_clock, timestamp);
+       ts_nsec = clock_cycles_to_ns(stream->current_clock, ts_cycles);
        ts_nsec += tc_offset;   /* Add offset */
        return ts_nsec;
 }