NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | FILES | SEE ALSO
cc [ flag ... ] file ... -lkstat [ library ... ] #include <kstat.h>kid_t kstat_read(kstat_ctl_t *kc, kstat_t *ksp, void *buf);
kstat_read() gets data from the kernel for the kstat pointed to by ksp . ksp->ks_data is automatically allocated (or reallocated) to be large enough to hold all of the data. ksp->ks_ndata is set to the number of data fields, ksp->ks_data_size is set to the total size of the data, and ksp->ks_snaptime is set to the high-resolution time at which the data snapshot was taken. If buf is non-NULL , the data is copied from ksp->ks_data into buf .
kstat_write() writes data from buf , or from ksp->ks_data if buf is NULL, to the corresponding kstat in the kernel. Only the superuser can use kstat_write() .
On success, kstat_read() and kstat_write() return the current kstat chain ID (KCID). On failure, they return -1 .
kstat(3KSTAT) , kstat_chain_update(3KSTAT) , kstat_close(3KSTAT) , kstat_data_lookup(3KSTAT) , kstat_lookup(3KSTAT) , kstat_open(3KSTAT)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | FILES | SEE ALSO