Fix trace path name creation for poor man's development boards
(e.g. Raspberry Pi) without RTC (starting at unix epoche aka time 0)
by forcing initial trace_id creation with 6 valid digits.
Fixes:
terminate called after throwing an instance of 'std::out_of_range'
what(): basic_string::substr: __pos (which is 5) > this->size() (which is 3)
Aborted
Signed-off-by: Peter Seiderer <ps.report@xxxxxxx>
---
utils/v4l2-tracer/v4l2-tracer.cpp | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/utils/v4l2-tracer/v4l2-tracer.cpp b/utils/v4l2-tracer/v4l2-tracer.cpp
index cb873d83..1a9a7d75 100644
--- a/utils/v4l2-tracer/v4l2-tracer.cpp
+++ b/utils/v4l2-tracer/v4l2-tracer.cpp
@@ -241,11 +241,9 @@ int tracer(int argc, char *argv[], bool retrace)
trace_id = json_file_name.substr(0, json_file_name.find(".json"));
trace_id += "_retrace";
} else {
- const int timestamp_start_pos = 5;
- trace_id = std::to_string(time(nullptr));
- // trace_id = trace_id.substr(timestamp_start_pos, std::string::npos) + "_trace";
+ const int timestamp_start_pos = 1;
+ trace_id = std::to_string(100000 + time(nullptr) % 100000);
trace_id = trace_id.substr(timestamp_start_pos) + "_trace";
-
}
setenv("TRACE_ID", trace_id.c_str(), 0);
std::string trace_filename = trace_id + ".json";
--
2.40.0
