From b8bce89be7fb5bffe5fef4a2782ca9b2b107eaac Mon Sep 17 00:00:00 2001 From: Jia Tan Date: Sat, 4 Feb 2023 12:01:23 +0800 Subject: [PATCH] xz: Add a comment clarifying the use of start_time in mytime.c. --- src/xz/mytime.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/xz/mytime.c b/src/xz/mytime.c index 8d5e994f..917eff0f 100644 --- a/src/xz/mytime.c +++ b/src/xz/mytime.c @@ -20,6 +20,11 @@ uint64_t opt_flush_timeout = 0; +// The start_time variable will not represent the actual start time +// if mytime_sigtstp_handler() executes. The signal handler measures +// the amount of time spent stopped and adds it to start_time. +// So, care must be taken in the future if the actual start time needs +// to be displayed for any reason. #ifdef USE_SIGTSTP_HANDLER static volatile uint64_t start_time; #else