ddi_get_lbolt(9F) Kernel Functions for Drivers ddi_get_lbolt(9F)NAME
ddi_get_lbolt, ddi_get_lbolt64 - return the number of clock ticks since
boot
SYNOPSIS
#include <sys/types.h>
#include <sys/ddi.h>
#include <sys/sunddi.h>
clock_t ddi_get_lbolt(void);
int64_t ddi_get_lbolt64(void);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI).
DESCRIPTION
The ddi_get_lbolt() function returns a value that represents the number
of clock ticks since the system booted. This value is used as a counter
or timer inside the system kernel. The tick frequency can be determined
by using drv_usectohz(9F), which converts microseconds into clock
ticks.
The ddi_get_lbolt64() behaves essentially the same as ddi_get_lbolt(),
except the value is returned in a longer data type (int64_t) that will
not wrap for 2.9 billion years.
RETURN VALUES
The ddi_get_lbolt() function returns the number of clock ticks since
boot in a clock_t type.
The ddi_get_lbolt64() function returns the number of clock ticks since
boot in a int64_t type.
CONTEXT
These routines can be called from any context.
SEE ALSOddi_get_time(9F), drv_getparm(9F), drv_usectohz(9F)
Writing Device Drivers
STREAMS Programming Guide
SunOS 5.10 4 Sep 2009 ddi_get_lbolt(9F)
