Protect relative times report output with a mutex to avoid overlap.

* flood_config.h
  (config_t): Add thread mutex to config structure.
* flood_farm.c
  (run_farm): Create thread mutex when we create farmers structure.
* flood_report_relative_times.c
  (relative_report_t): New structure to hold pointer to a config.
  (relative_times_report_init): Create report structure and stash config.
  (relative_times_process_stats): Use thread mutex to lock printf calls.
* CHANGES: Update.

git-svn-id: 13f79535-47bb-0310-9956-ffa450edef68
4 files changed