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Diffstat (limited to 'open_issues/alarm_setitimer.mdwn')
| -rw-r--r-- | open_issues/alarm_setitimer.mdwn | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/open_issues/alarm_setitimer.mdwn b/open_issues/alarm_setitimer.mdwn new file mode 100644 index 00000000..99b2d7b6 --- /dev/null +++ b/open_issues/alarm_setitimer.mdwn @@ -0,0 +1,23 @@ +[[!meta copyright="Copyright © 2012 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +[[!meta title="alarm/setitimer"]] + +[[!tag open_issue_glibc open_issue_hurd]] + +`setitimer()`, called by `alarm()` when setting a new alarm, it is not able +to disable on its own the timer when the alarm is fired the first time. +On the other hand, manually invoking `alarm(0)` can cancel the running timer +for `SIGALRM`. + +See also the attached file: on other OSes (e.g. Linux) it blocks waiting +for a signal, while on GNU/Hurd it gets a new alarm and exits. + +[[alrm.c]] |