snd_pcm_close()
Close a PCM handle and free its resources
Synopsis:
#include <sys/asoundlib.h>
int snd_pcm_close( snd_pcm_t *handle );
Arguments:
- handle
- The handle for the PCM device, which you must have opened by calling snd_pcm_open_name(), snd_pcm_open(), or snd_pcm_open_preferred().
Library:
libasound.so
Use the -l asound option with qcc to link against this library.
Description:
The snd_pcm_close() function frees all resources allocated with the audio handle and closes the connection to the PCM interface.
Returns:
EOK on success, a negative errno upon failure. The errno values are available in the errno.h file.
Errors:
- -EINTR
- The close() call was interrupted by a signal.
- -EINVAL
- The state of handle is invalid or an invalid state change occurred. You can call snd_pcm_channel_status() to check if the state change was invalid.
- -EIO
- An I/O error occurred while updating the directory information.
- -ENOSPC
- A previous buffered write call has failed.
Classification:
QNX Neutrino
| Safety: | |
|---|---|
| Cancellation point | No |
| Interrupt handler | No |
| Signal handler | Yes |
| Thread | Read the Caveats |
Caveats:
This function is not thread safe if handle (snd_pcm_t) is used across multiple threads.
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