diff mbox series

iothread: fix epollfd leak in the process of delIOThread

Message ID 1526385643-69675-1-git-send-email-wangjie88@huawei.com
State New
Headers show
Series iothread: fix epollfd leak in the process of delIOThread | expand

Commit Message

wangjie (P) May 15, 2018, noon UTC
When we call addIOThread, the epollfd created in aio_context_setup,
but not close it in the process of delIOThread, so the epollfd will leak.

Signed-off-by: Jie Wang <wangjie88@huawei.com>
---
 iothread.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Fam Zheng May 16, 2018, 1:38 a.m. UTC | #1
On Tue, 05/15 20:00, Jie Wang wrote:
> When we call addIOThread, the epollfd created in aio_context_setup,
> but not close it in the process of delIOThread, so the epollfd will leak.
> 
> Signed-off-by: Jie Wang <wangjie88@huawei.com>
> ---
>  iothread.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/iothread.c b/iothread.c
> index aff1281..23ac0a8 100644
> --- a/iothread.c
> +++ b/iothread.c
> @@ -128,6 +128,7 @@ static void iothread_instance_finalize(Object *obj)
>       * GSources first before destroying any GMainContext.
>       */
>      if (iothread->ctx) {
> +        close(iothread->ctx->epollfd);
>          aio_context_unref(iothread->ctx);
>          iothread->ctx = NULL;
>      }
> -- 
> 1.8.3.1
> 

Please add an aio_context_destroy() function in aio-posix.c and call it from
aio_context_finalize(). IOThread code should not touch AioContext internals.
Also please remember to wrap the close() code in CONFIG_EPOLL_CREATE1.  An empty
function may need to be added to aio-win32.c, too.

Fam
Peter Xu May 16, 2018, 3:11 a.m. UTC | #2
On Wed, May 16, 2018 at 09:38:31AM +0800, Fam Zheng wrote:
> On Tue, 05/15 20:00, Jie Wang wrote:
> > When we call addIOThread, the epollfd created in aio_context_setup,
> > but not close it in the process of delIOThread, so the epollfd will leak.
> > 
> > Signed-off-by: Jie Wang <wangjie88@huawei.com>
> > ---
> >  iothread.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/iothread.c b/iothread.c
> > index aff1281..23ac0a8 100644
> > --- a/iothread.c
> > +++ b/iothread.c
> > @@ -128,6 +128,7 @@ static void iothread_instance_finalize(Object *obj)
> >       * GSources first before destroying any GMainContext.
> >       */
> >      if (iothread->ctx) {
> > +        close(iothread->ctx->epollfd);
> >          aio_context_unref(iothread->ctx);
> >          iothread->ctx = NULL;
> >      }
> > -- 
> > 1.8.3.1
> > 
> 
> Please add an aio_context_destroy() function in aio-posix.c and call it from
> aio_context_finalize(). IOThread code should not touch AioContext internals.

I believe Fam means aio_ctx_finalize().

> Also please remember to wrap the close() code in CONFIG_EPOLL_CREATE1.  An empty
> function may need to be added to aio-win32.c, too.

Agreed.
diff mbox series

Patch

diff --git a/iothread.c b/iothread.c
index aff1281..23ac0a8 100644
--- a/iothread.c
+++ b/iothread.c
@@ -128,6 +128,7 @@  static void iothread_instance_finalize(Object *obj)
      * GSources first before destroying any GMainContext.
      */
     if (iothread->ctx) {
+        close(iothread->ctx->epollfd);
         aio_context_unref(iothread->ctx);
         iothread->ctx = NULL;
     }