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pcm: add SND_CTL_EINTR open mode

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Add possibility to return -EINTR instead waiting for the event. The
applications may want to handle -EINTR condition themselves.

BugLink: https://github.com/alsa-project/alsa-lib/issues/228
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2023-05-03 11:48:35 +02:00
parent d6d5982d3a
commit 507d906abb
8 changed files with 13 additions and 8 deletions
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3
src/control/control.c
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@ -265,13 +265,14 @@ int snd_ctl_nonblock(snd_ctl_t *ctl, int nonblock)
}
#ifndef DOC_HIDDEN
int snd_ctl_new(snd_ctl_t **ctlp, snd_ctl_type_t type, const char *name)
int snd_ctl_new(snd_ctl_t **ctlp, snd_ctl_type_t type, const char *name, int mode)
{
snd_ctl_t *ctl;
ctl = calloc(1, sizeof(*ctl));
if (!ctl)
return -ENOMEM;
ctl->type = type;
ctl->mode = mode;
if (name)
ctl->name = strdup(name);
INIT_LIST_HEAD(&ctl->async_handlers);