1*c54f35caSApple OSS Distributions<h2>clock_set_attributes</h2> 2*c54f35caSApple OSS Distributions<hr> 3*c54f35caSApple OSS Distributions<p> 4*c54f35caSApple OSS Distributions<strong>Function</strong> - Set a particular clock's attributes. 5*c54f35caSApple OSS Distributions<h3>SYNOPSIS</h3> 6*c54f35caSApple OSS Distributions<pre> 7*c54f35caSApple OSS Distributions<strong>kern_return_t clock_set_attributes</strong> 8*c54f35caSApple OSS Distributions <strong>(clock_ctrl_t</strong> <var>clock_control</var>, 9*c54f35caSApple OSS Distributions <strong>clock_flavor_t</strong> <var>flavor</var>, 10*c54f35caSApple OSS Distributions <strong>clock_attr_t</strong> <var>attribute</var>, 11*c54f35caSApple OSS Distributions <strong>clock_control</strong> <var>attribute_count</var><strong>);</strong> 12*c54f35caSApple OSS Distributions</pre> 13*c54f35caSApple OSS Distributions<h3>PARAMETERS</h3> 14*c54f35caSApple OSS Distributions<dl> 15*c54f35caSApple OSS Distributions<p> 16*c54f35caSApple OSS Distributions<dt> <var>clock_control</var> 17*c54f35caSApple OSS Distributions<dd> 18*c54f35caSApple OSS Distributions[in clock-control send right] 19*c54f35caSApple OSS DistributionsThe control port for the clock. 20*c54f35caSApple OSS Distributions<p> 21*c54f35caSApple OSS Distributions<dt> <var>flavor</var> 22*c54f35caSApple OSS Distributions<dd> 23*c54f35caSApple OSS Distributions[in scalar] 24*c54f35caSApple OSS DistributionsType of information to be set. Defined values are: 25*c54f35caSApple OSS Distributions<dl> 26*c54f35caSApple OSS Distributions<p> 27*c54f35caSApple OSS Distributions<dt> <strong>CLOCK_ALARM_CURRES</strong> 28*c54f35caSApple OSS Distributions<dd> 29*c54f35caSApple OSS DistributionsThe resolution, in nanoseconds, at which clock alarm and 30*c54f35caSApple OSS Distributionssleep timers are currently serviced. Increasing the current 31*c54f35caSApple OSS Distributionsresolution will have no impact on any pending clock alarms (i.e. 32*c54f35caSApple OSS Distributionsthey will go off as originally scheduled). Decreasing the 33*c54f35caSApple OSS Distributionscurrent resolution will truncate any pending alarms to the 34*c54f35caSApple OSS Distributionsgranularity of the new current resolution. This value must be a 35*c54f35caSApple OSS Distributionsmultiple of the minimum resolution and not greater than the 36*c54f35caSApple OSS Distributionsmaximum resolution of the clock. 37*c54f35caSApple OSS Distributions</dl> 38*c54f35caSApple OSS Distributions<p> 39*c54f35caSApple OSS Distributions<dt> <var>attribute</var> 40*c54f35caSApple OSS Distributions<dd> 41*c54f35caSApple OSS Distributions[pointer to in scalar] 42*c54f35caSApple OSS DistributionsNew attribute. 43*c54f35caSApple OSS Distributions<p> 44*c54f35caSApple OSS Distributions<dt> <var>attribute_count</var> 45*c54f35caSApple OSS Distributions<dd> 46*c54f35caSApple OSS Distributions[in scalar] 47*c54f35caSApple OSS DistributionsThe size of the buffer (in natural-sized units). 48*c54f35caSApple OSS Distributions</dl> 49*c54f35caSApple OSS Distributions<h3>DESCRIPTION</h3> 50*c54f35caSApple OSS Distributions<p> 51*c54f35caSApple OSS DistributionsThe <strong>clock_set_attributes</strong> function sets attributes of 52*c54f35caSApple OSS Distributionsa clock's operation. 53*c54f35caSApple OSS Distributions<h3>NOTES</h3> 54*c54f35caSApple OSS Distributions<p> 55*c54f35caSApple OSS DistributionsThe main reason a clock's current resolution would not always equal its 56*c54f35caSApple OSS Distributionsminimum resolution is because the overhead of sustaining the 57*c54f35caSApple OSS Distributionsminimum resolution, 58*c54f35caSApple OSS Distributionswhen it is not needed by any existing alarm service client, may be prohibitive 59*c54f35caSApple OSS Distributionsfor a given hardware platform and underlying clock device. 60*c54f35caSApple OSS Distributions<h3>RETURN VALUES</h3> 61*c54f35caSApple OSS Distributions<p> 62*c54f35caSApple OSS DistributionsOnly generic errors apply. 63*c54f35caSApple OSS Distributions<h3>RELATED INFORMATION</h3> 64*c54f35caSApple OSS Distributions<p> 65*c54f35caSApple OSS DistributionsFunctions: 66*c54f35caSApple OSS Distributions<a href="host_get_clock_control.html"><strong>host_get_clock_control</strong></a>, 67*c54f35caSApple OSS Distributions<a href="clock_set_time.html"><strong>clock_set_time</strong></a>, 68*c54f35caSApple OSS Distributions<a href="clock_get_attributes.html"><strong>clock_get_attributes</strong></a>. 69