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pcm: return immediately when the state is SETUP in snd_pcm_drain()

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We are already in the target state. Do not call the plugin callback.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2020-06-03 18:42:29 +02:00
parent 1b9104b5ff
commit 0b7f1441bb
1 changed files with 21 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

37
src/pcm/pcm.c
View file

@ -680,7 +680,8 @@ static int pcm_state_to_error(snd_pcm_state_t state)
P_STATE(DRAINING))
/* check whether the PCM is in the unexpected state */
static int bad_pcm_state(snd_pcm_t *pcm, unsigned int supported_states)
static int bad_pcm_state(snd_pcm_t *pcm, unsigned int supported_states,
unsigned int noop_states)
{
snd_pcm_state_t state;
int err;
@ -688,6 +689,8 @@ static int bad_pcm_state(snd_pcm_t *pcm, unsigned int supported_states)
if (pcm->own_state_check)
return 0; /* don't care, the plugin checks by itself */
state = snd_pcm_state(pcm);
if (noop_states & (1U << state))
return 1; /* OK, return immediately */
if (supported_states & (1U << state))
return 0; /* OK */
err = pcm_state_to_error(state);
@ -1206,7 +1209,7 @@ int snd_pcm_prepare(snd_pcm_t *pcm)
SNDMSG("PCM not set up");
return -EIO;
}
err = bad_pcm_state(pcm, ~P_STATE(DISCONNECTED));
err = bad_pcm_state(pcm, ~P_STATE(DISCONNECTED), 0);
if (err < 0)
return err;
snd_pcm_lock(pcm->fast_op_arg);
@ -1261,7 +1264,7 @@ int snd_pcm_start(snd_pcm_t *pcm)
SNDMSG("PCM not set up");
return -EIO;
}
err = bad_pcm_state(pcm, P_STATE(PREPARED));
err = bad_pcm_state(pcm, P_STATE(PREPARED), 0);
if (err < 0)
return err;
snd_pcm_lock(pcm->fast_op_arg);
@ -1293,7 +1296,7 @@ int snd_pcm_drop(snd_pcm_t *pcm)
return -EIO;
}
err = bad_pcm_state(pcm, P_STATE_RUNNABLE | P_STATE(SETUP) |
P_STATE(SUSPENDED));
P_STATE(SUSPENDED), 0);
if (err < 0)
return err;
snd_pcm_lock(pcm->fast_op_arg);
@ -1329,9 +1332,11 @@ int snd_pcm_drain(snd_pcm_t *pcm)
SNDMSG("PCM not set up");
return -EIO;
}
err = bad_pcm_state(pcm, P_STATE_RUNNABLE | P_STATE(SETUP));
err = bad_pcm_state(pcm, P_STATE_RUNNABLE | P_STATE(SETUP), P_STATE(SETUP));
if (err < 0)
return err;
if (err == 1)
return 0;
/* lock handled in the callback */
if (pcm->fast_ops->drain)
err = pcm->fast_ops->drain(pcm->fast_op_arg);
@ -1361,7 +1366,7 @@ int snd_pcm_pause(snd_pcm_t *pcm, int enable)
SNDMSG("PCM not set up");
return -EIO;
}
err = bad_pcm_state(pcm, P_STATE_RUNNABLE);
err = bad_pcm_state(pcm, P_STATE_RUNNABLE, 0);
if (err < 0)
return err;
snd_pcm_lock(pcm->fast_op_arg);
@ -1394,7 +1399,7 @@ snd_pcm_sframes_t snd_pcm_rewindable(snd_pcm_t *pcm)
SNDMSG("PCM not set up");
return -EIO;
}
err = bad_pcm_state(pcm, P_STATE_RUNNABLE);
err = bad_pcm_state(pcm, P_STATE_RUNNABLE, 0);
if (err < 0)
return err;
snd_pcm_lock(pcm->fast_op_arg);
@ -1427,7 +1432,7 @@ snd_pcm_sframes_t snd_pcm_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t frames)
}
if (frames == 0)
return 0;
err = bad_pcm_state(pcm, P_STATE_RUNNABLE);
err = bad_pcm_state(pcm, P_STATE_RUNNABLE, 0);
if (err < 0)
return err;
snd_pcm_lock(pcm->fast_op_arg);
@ -1460,7 +1465,7 @@ snd_pcm_sframes_t snd_pcm_forwardable(snd_pcm_t *pcm)
SNDMSG("PCM not set up");
return -EIO;
}
err = bad_pcm_state(pcm, P_STATE_RUNNABLE);
err = bad_pcm_state(pcm, P_STATE_RUNNABLE, 0);
if (err < 0)
return err;
snd_pcm_lock(pcm->fast_op_arg);
@ -1497,7 +1502,7 @@ snd_pcm_sframes_t snd_pcm_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames)
}
if (frames == 0)
return 0;
err = bad_pcm_state(pcm, P_STATE_RUNNABLE);
err = bad_pcm_state(pcm, P_STATE_RUNNABLE, 0);
if (err < 0)
return err;
snd_pcm_lock(pcm->fast_op_arg);
@ -1543,7 +1548,7 @@ snd_pcm_sframes_t snd_pcm_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_ufr
SNDMSG("invalid access type %s", snd_pcm_access_name(pcm->access));
return -EINVAL;
}
err = bad_pcm_state(pcm, P_STATE_RUNNABLE);
err = bad_pcm_state(pcm, P_STATE_RUNNABLE, 0);
if (err < 0)
return err;
return _snd_pcm_writei(pcm, buffer, size);
@ -1582,7 +1587,7 @@ snd_pcm_sframes_t snd_pcm_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t
SNDMSG("invalid access type %s", snd_pcm_access_name(pcm->access));
return -EINVAL;
}
err = bad_pcm_state(pcm, P_STATE_RUNNABLE);
err = bad_pcm_state(pcm, P_STATE_RUNNABLE, 0);
if (err < 0)
return err;
return _snd_pcm_writen(pcm, bufs, size);
@ -1621,7 +1626,7 @@ snd_pcm_sframes_t snd_pcm_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t
SNDMSG("invalid access type %s", snd_pcm_access_name(pcm->access));
return -EINVAL;
}
err = bad_pcm_state(pcm, P_STATE_RUNNABLE);
err = bad_pcm_state(pcm, P_STATE_RUNNABLE, 0);
if (err < 0)
return err;
return _snd_pcm_readi(pcm, buffer, size);
@ -1660,7 +1665,7 @@ snd_pcm_sframes_t snd_pcm_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t s
SNDMSG("invalid access type %s", snd_pcm_access_name(pcm->access));
return -EINVAL;
}
err = bad_pcm_state(pcm, P_STATE_RUNNABLE);
err = bad_pcm_state(pcm, P_STATE_RUNNABLE, 0);
if (err < 0)
return err;
return _snd_pcm_readn(pcm, bufs, size);
@ -7189,7 +7194,7 @@ int snd_pcm_mmap_begin(snd_pcm_t *pcm,
{
int err;
err = bad_pcm_state(pcm, P_STATE_RUNNABLE);
err = bad_pcm_state(pcm, P_STATE_RUNNABLE, 0);
if (err < 0)
return err;
snd_pcm_lock(pcm->fast_op_arg);
@ -7294,7 +7299,7 @@ snd_pcm_sframes_t snd_pcm_mmap_commit(snd_pcm_t *pcm,
snd_pcm_sframes_t result;
int err;
err = bad_pcm_state(pcm, P_STATE_RUNNABLE);
err = bad_pcm_state(pcm, P_STATE_RUNNABLE, 0);
if (err < 0)
return err;
snd_pcm_lock(pcm->fast_op_arg);