jimzah/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src.git synced 2024-11-27 13:32:45 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

sleep: Explain in a comment why the [EINTR] check is there.

Browse Source 
Suggested by:	eadler
This commit is contained in:
Jilles Tjoelker 2013-06-05 20:15:18 +00:00
parent bd76c6b83f
commit c6ef00e390
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=251433
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
bin/sleep/sleep.c
View File

@ -82,6 +82,12 @@ main(int argc, char *argv[])
time_to_sleep.tv_nsec = 1e9 * (d - time_to_sleep.tv_sec);
signal(SIGINFO, report_request);
/*
* Note: [EINTR] is supposed to happen only when a signal was handled
* but the kernel also returns it when a ptrace-based debugger
* attaches. This is a bug but it is hard to fix.
*/
while (nanosleep(&time_to_sleep, &time_to_sleep) != 0) {
if (report_requested) {
/* Reporting does not bother with nanoseconds. */