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cleanup(userspace/falco): add more comments around timer_delete workaround

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Co-authored-by: Federico Di Pierro <nierro92@gmail.com>
Signed-off-by: Melissa Kilby <melissa.kilby.oss@gmail.com>
This commit is contained in:
Melissa Kilby
2023-10-04 14:21:27 +00:00
committed by poiana
parent 0b761ff1da
commit 0b48da30ca
1 changed files with 2 additions and 0 deletions
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userspace/falco/stats_writer.cpp
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@@ -37,6 +37,8 @@ static timer_t s_timerid;
// note: Workaround for older GLIBC versions (< 2.35), where calling timer_delete()
// with an invalid timer ID not returned by timer_create() causes a segfault because of
// a bug in GLIBC (https://sourceware.org/bugzilla/show_bug.cgi?id=28257).
// Just performing a nullptr check is not enough as even after creating the timer, s_timerid
// remains a nullptr somehow.
bool s_timerid_exists = false;
static void timer_handler(int signum)