This commit closes file descriptor outside of container module so
that maintenance of lifetime for the descriptor is delegated to container
user.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Internal container module operates file descriptor to media file. For
this purpose, the structure has fd member and any file operation is done
internally. However, the case to use special file descriptor such as
memfd requires to maintain file descriptor externally.
This commit opens file descriptor outside of container module. The
internal APIs to initialize container get an argument for the file
descriptor instead of file path.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit unifies duplicated code to allocate for container structure.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit arranges assignment to fd member after checking file
descriptor.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Current implementation sets stdio member in a condition branch, however
it's convenient to set it always regardless of any condition.
This commit arranges assignment to the member.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
In internal container module, any file descriptor is expected as
non-blocking mode. Current implementation distinguish the case of
standard input and output from the case to open actual file since
O_NONBLOCK is used for the latter case. However, in both cases,
fcntl(2) is available to set non-blocking mode to the file descriptor.
This commit arranges to use fcntl(2) for both cases.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Take the card iterator idea from the monitor code and
use it for all card loops. It reduces the code duplications
and makes things easy to review.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Also remove extra snd_config_update_free_global() call for dump-state.
There's a global call in the main() function.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Add missing channel params to the amixer man page. Also call out that
the channel param must come before the value to take effect.
signed-off-by: Matthew Campbell <mcampbell@izotope.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
It is handy to remove all card controls created by applications.
This change allows to remove those controls for all cards, selected
card or selected card with a control id filter list like:
alsactl clean 0 "name='PCM'" "name='Mic Phantom'"
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
We added the check of asound.state file presence some time ago to
assure that alsactl gets called only if the state file is already
present. Since then, the situation has changed significantly:
e.g. now alsactl does initialize if the state file isn't present, and
the same alsa-restore.service is used to save the state. This means
that we should start this service no matter the state file exists at
the boot time or not. So, revert the old change again.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A race at creating a lock file in state_lock() was discovered
recently: namely, between the first open(O_RDWR) and the second
open(O_RDWR|O_CREAT|O_EXCL) calls, another alsactl invocation may
already create a lock file, then the second open() will return EEXIST,
which isn't handled properly and treated as a fatal error.
In this patch, we check EEXIST case and try again open() with O_RDWR.
This must succeed usually, and if it fails, handle finally as the
fatal error.
BugLink: https://bugzilla.opensuse.org/show_bug.cgi?id=1179904
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The state_lock() has a loop to wait for the lock file creation, and
the timeout value gets decremented twice mistakenly, which leads to a
half timeout (5 seconds) than expected 10 seconds. Fix it.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
We need more detailed information for USB-audio devices, at least the
lsusb -v output and the contents of stream* proc files.
Let's add them to alsa-info.sh output.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Use the standard poll mechanism to ensure that there's
something in the input to avoid busy loop on the file
descriptor with the non-block mode set.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
