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ddi_get_lbolt(9f)

ddi_get_lbolt(9F)              Kernel Functions              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 ALSO
       ddi_get_time(9F), drv_getparm(9F), drv_usectohz(9F)


       Writing Device Drivers in Oracle Solaris 11.4


       STREAMS Programming Guide



Oracle Solaris 11.4               4 Sep 2009                 ddi_get_lbolt(9F)
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