pSOSystem System Calls - Read

ioctl pNA+ System Calls
struct mbstat {
long mb_classes; /* Number of buffer classes */
long mb_mblks; /* Number of mblks configured */
long mb_free; /* Number of free mblks */
long mb_wait; /* Number of times task waited for mblk */
long mb_drops; /* Number of times mblks unavailable */
};
SIOCGDBSTAT Gets the statistics for buffers configured in the system. A
pointer to the dbreq structure is passed as the arg parameter.
The dbs element must point to a buffer that can
hold at least size number of bytes. The buffer on return
contains a sequence of dbstat structures each of which is
filled in the statistics of the particular buffer size. It is recommended
that the size of the dbs buffer be large enough
to contain all the buffer types configured in the system.
size is an input/output element that contains the size of
a buffer on input. On output the pNA+ network manager
returns the size of buffer used by the call. These structures
are defined as follows in :
struct dbreq {
long size; /* Size of the buffer */
struct dbstat *dbs; /* Pointer to the buffer*/
};
struct dbstat {
long db_size; /* Size of buffer */
long db_nbuffers; /* Number of buffers configured*/
long db_free; /* Number of free buffers */
long db_wait; /* No. of times tasks waited for buffer */
long db_drops; /* No. of times buffer was unavailable */
};
ARP-Related Operations
The following operations are available for accessing and modifying the ARP table:
Operation Description
SIOCSARP Sets an ARP entry.
SIOCGARP Gets an ARP entry.
SIOCDARP Deletes an ARP entry.
For all ARP-related operations, arg must point to the following structure:
4-26 pSOSystem System Calls