mailing list of musl libc
 help / color / mirror / code / Atom feed
From: zuotina <zuotingyang@126.com>
To: musl@lists.openwall.com
Subject: [musl] [timer] timer_delete function async problem
Date: Sat, 15 Feb 2020 18:54:23 +0800 (CST)	[thread overview]
Message-ID: <19e6adf5.abdf.170487c3154.Coremail.zuotingyang@126.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 675 bytes --]

Hi everrone


Problem:
When I created SIGEV_THREAD timer, then start it by timer_settime. like this
the notify callback in the helper thread 'start' will be run when timer expiration.
But when I delete the timer, the notify callback will be run all the same.
This is not what i want. In actual use,  I encountered a problem.


I found that the 'timer_delete' function returns immediately after called.
The timer may not perform the delete action.


In addition, the SIGEV_SIGNAL timer can be deleted after called the function. 
So i think the function has different semantics for different types.


Is there a way to implement synchronously ?


Looking forward to your reply.

[-- Attachment #2: Type: text/html, Size: 1025 bytes --]

             reply	other threads:[~2020-02-15 10:54 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-15 10:54 zuotina [this message]
2020-02-15 12:46 ` Szabolcs Nagy
2020-02-15 17:27 ` Rich Felker
2020-02-17  7:12   ` [musl] " zuotina
2020-02-17 15:15     ` Rich Felker

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=19e6adf5.abdf.170487c3154.Coremail.zuotingyang@126.com \
    --to=zuotingyang@126.com \
    --cc=musl@lists.openwall.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
Code repositories for project(s) associated with this public inbox

	https://git.vuxu.org/mirror/musl/

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).