From: Rich Felker <dalias@aerifal.cx>
To: musl@lists.openwall.com
Subject: Re: cluts daily reports 8/12 - continuing pthread_eintr, still stuck with alloc
Date: Thu, 11 Aug 2011 22:47:25 -0400 [thread overview]
Message-ID: <20110812024725.GG132@brightrain.aerifal.cx> (raw)
In-Reply-To: <4E4493E6.6050809@gmail.com>
On Fri, Aug 12, 2011 at 04:45:58AM +0200, Luka Marčetić wrote:
> static void
> child_wait_vp(void* foo)
> {
> child_wait();
> ++foo; // -Wunused-parameter
> return;
> }
This is invalid C. You cannot do arithmetic on void pointers. I would
really recommend -Wno-unused-parameter, as unused parameters are NOT a
sign of bad code, but a fundamental part of using function pointers.
> /**
> ** Executes a function whose pointer was passed to it, before exitting
> ** \param fun a void pointer to the function to execute, or NULL for none
> **/
> static void* thread(void *fun)
> {
> if(fun != NULL) {
> pthread_cleanup_push(child_wait_vp, NULL);
> }
> return NULL;
> }
pthread_cleanup_push and pthread_cleanup_pop must come in pairs that
would be valid if they were replaced by { and }. You can't use one
alone.
Rich
next prev parent reply other threads:[~2011-08-12 2:47 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-12 2:45 Luka Marčetić
2011-08-12 2:41 ` Rich Felker
2011-08-12 15:40 ` Luka Marčetić
2011-08-12 15:39 ` Rich Felker
2011-08-13 18:49 ` Luka Marčetić
2011-08-13 18:43 ` Rich Felker
2011-08-13 19:03 ` Luka Marčetić
2011-08-12 2:47 ` Rich Felker [this message]
2011-08-12 3:13 ` Solar Designer
2011-08-12 15:48 ` Luka Marčetić
2011-08-12 3:12 ` Rich Felker
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