From: Clemens Ladisch <clemens@ladisch.de>
To: "Aaron J. Grier" <agrier@poofygoof.com>
Cc: alsa-devel@alsa-project.org
Subject: Re: snd_pcm_sw_params_set_xfer_align replacement?
Date: Tue, 22 Jul 2008 09:01:54 +0200 [thread overview]
Message-ID: <488585E2.7090104@ladisch.de> (raw)
In-Reply-To: <20080721183135.GX835@arwen.poofy.goof.com>
Aaron J. Grier wrote:
> On Mon, Jul 21, 2008 at 10:37:09AM +0200, Clemens Ladisch wrote:
> > You get partial reads/writes only when you ask for it (by using non-
> > blocking mode) or when an error occurs.
>
> I want non-blocking behavior (return immediately if there is no data
> available), but I don't want to have to deal with partial reads. I
> figured out a workaround using snd_pcm_avail_update(), but I'm wondering
> if there isn't a better way.
You could write your own read function that calls snd_pcm_read*()
repeatedly until you have as much data as you want, but this is probably
more complex than just checking for data before doing a blocking read.
Regards,
Clemens
next prev parent reply other threads:[~2008-07-22 7:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-18 19:23 snd_pcm_sw_params_set_xfer_align replacement? Aaron J. Grier
2008-07-21 8:37 ` Clemens Ladisch
2008-07-21 18:31 ` Aaron J. Grier
2008-07-22 7:01 ` Clemens Ladisch [this message]
2008-07-27 8:00 ` Takashi Iwai
2008-07-31 23:09 ` [PATCH - snd_pcm_sw_params_set_xfer_align doc update 1add notes regarding snd_pcm_sw_params_set_xfer_align's deprecation and Aaron J. Grier
2008-07-31 23:09 ` [PATCH - snd_pcm_sw_params_set_xfer_align doc update 2fix grammatical error Aaron J. Grier
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