portstat - show status of open audio ports
portstat is a very simple program which dumps the status of all the
currently open audio ports on a system.
For each open port, it prints, in order: "port," the name of the port as
passed to ALopenport; "pid," the ID of the process that opened the port;
"rbid," the internal ID of the sample queue; "AL v," the version of the
Audio Library which was used to open the port; "type," the type of the
port (input or output); "nchans," the number of channels in the port's
sample queue; "filled," the number of samples currently in the queue;
"nlocs," the total number of locations in the queue (possibly including
an extra location); and "errcnt," a count of the number of overflows or
underflows which have occurred on the port since it was opened.
Note that portstat does not work on Indigo and Indigo R4K systems.
PPPPaaaaggggeeee 1111 [ Back ]