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sndio
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siomix_sun: poll the mixer fd to detect when device is gone. 

This doesn't work yet, as the audio(4) driver doesn't properly
wakeup processes waiting in the poll syscall, see audio_detach()
This commit is contained in:
Alexandre Ratchov 2019-08-30 17:02:54 +02:00
parent aefc78f715
commit aceffe4729
1 changed files with 4 additions and 2 deletions
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6
libsndio/siomix_sun.c
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@ -392,7 +392,7 @@ siomix_sun_setctl(struct siomix_hdl *arg, unsigned int addr, unsigned int val)
static int
siomix_sun_nfds(struct siomix_hdl *addr)
{
return 0;
return 1;
}
static int
@ -401,6 +401,8 @@ siomix_sun_pollfd(struct siomix_hdl *addr, struct pollfd *pfd, int events)
struct siomix_sun_hdl *hdl = (struct siomix_sun_hdl *)addr;
hdl->events = events;
pfd->events = 0;
pfd->fd = hdl->fd;
return 0;
}
@ -409,6 +411,6 @@ siomix_sun_revents(struct siomix_hdl *addr, struct pollfd *pfd)
{
struct siomix_sun_hdl *hdl = (struct siomix_sun_hdl *)addr;
return hdl->events & POLLOUT;
return pfd->revents | (hdl->events & POLLOUT);
}
#endif