Get the runtime status of a PCM channel (plugin aware)
#include <sys/asoundlib.h> int snd_pcm_plugin_status( snd_pcm_t *handle, snd_pcm_channel_status_t *status );
Fill in the status structure's channel member to specify the direction. All other members are read-only.
The snd_pcm_plugin_status() function fills the status structure with runtime status information about the PCM channel selected by handle.
EOK on success, a negative errno upon failure. The errno values are available in the errno.h file.
QNX Neutrino
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | Yes |
Thread | Read the Caveats |
This function is not thread safe if handle (snd_pcm_t) is used across multiple threads.
This function is the plugin-aware version of snd_pcm_channel_status() . It functions exactly the same way. However, make sure that you don't mix and match plugin- and nonplugin-aware functions in your application, or you may get undefined behavior and misleading results.