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Cleaned the mmap_commit implementations in plugins.

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Added undo callbacks for snd_pcm_plugin based plugins.
  - helpers when mmap_commit proceed only a partial transfer
Fixes to avail_update implementation in pcm_hw.c.
This commit is contained in:
Jaroslav Kysela 2002-02-21 15:01:34 +00:00
parent 9b0eebbcb7
commit e128bf856e
22 changed files with 260 additions and 120 deletions
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9
src/pcm/pcm_null.c
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@ -230,17 +230,16 @@ static snd_pcm_sframes_t snd_pcm_null_readn(snd_pcm_t *pcm, void **bufs ATTRIBUT
return snd_pcm_read_areas(pcm, NULL, 0, size, snd_pcm_null_xfer_areas);
}
static int snd_pcm_null_mmap_commit(snd_pcm_t *pcm,
snd_pcm_uframes_t offset ATTRIBUTE_UNUSED,
snd_pcm_uframes_t size)
static snd_pcm_sframes_t snd_pcm_null_mmap_commit(snd_pcm_t *pcm,
snd_pcm_uframes_t offset ATTRIBUTE_UNUSED,
snd_pcm_uframes_t size)
{
snd_pcm_sframes_t res;
res = snd_pcm_null_fwd(pcm, size);
if (res < 0)
return res;
assert((snd_pcm_uframes_t)res == size);
return 0;
return res;
}
static snd_pcm_sframes_t snd_pcm_null_avail_update(snd_pcm_t *pcm)