1*0f4c859eSApple OSS Distributions<h2>clock_set_attributes</h2> 2*0f4c859eSApple OSS Distributions<hr> 3*0f4c859eSApple OSS Distributions<p> 4*0f4c859eSApple OSS Distributions<strong>Function</strong> - Set a particular clock's attributes. 5*0f4c859eSApple OSS Distributions<h3>SYNOPSIS</h3> 6*0f4c859eSApple OSS Distributions<pre> 7*0f4c859eSApple OSS Distributions<strong>kern_return_t clock_set_attributes</strong> 8*0f4c859eSApple OSS Distributions <strong>(clock_ctrl_t</strong> <var>clock_control</var>, 9*0f4c859eSApple OSS Distributions <strong>clock_flavor_t</strong> <var>flavor</var>, 10*0f4c859eSApple OSS Distributions <strong>clock_attr_t</strong> <var>attribute</var>, 11*0f4c859eSApple OSS Distributions <strong>clock_control</strong> <var>attribute_count</var><strong>);</strong> 12*0f4c859eSApple OSS Distributions</pre> 13*0f4c859eSApple OSS Distributions<h3>PARAMETERS</h3> 14*0f4c859eSApple OSS Distributions<dl> 15*0f4c859eSApple OSS Distributions<p> 16*0f4c859eSApple OSS Distributions<dt> <var>clock_control</var> 17*0f4c859eSApple OSS Distributions<dd> 18*0f4c859eSApple OSS Distributions[in clock-control send right] 19*0f4c859eSApple OSS DistributionsThe control port for the clock. 20*0f4c859eSApple OSS Distributions<p> 21*0f4c859eSApple OSS Distributions<dt> <var>flavor</var> 22*0f4c859eSApple OSS Distributions<dd> 23*0f4c859eSApple OSS Distributions[in scalar] 24*0f4c859eSApple OSS DistributionsType of information to be set. Defined values are: 25*0f4c859eSApple OSS Distributions<dl> 26*0f4c859eSApple OSS Distributions<p> 27*0f4c859eSApple OSS Distributions<dt> <strong>CLOCK_ALARM_CURRES</strong> 28*0f4c859eSApple OSS Distributions<dd> 29*0f4c859eSApple OSS DistributionsThe resolution, in nanoseconds, at which clock alarm and 30*0f4c859eSApple OSS Distributionssleep timers are currently serviced. Increasing the current 31*0f4c859eSApple OSS Distributionsresolution will have no impact on any pending clock alarms (i.e. 32*0f4c859eSApple OSS Distributionsthey will go off as originally scheduled). Decreasing the 33*0f4c859eSApple OSS Distributionscurrent resolution will truncate any pending alarms to the 34*0f4c859eSApple OSS Distributionsgranularity of the new current resolution. This value must be a 35*0f4c859eSApple OSS Distributionsmultiple of the minimum resolution and not greater than the 36*0f4c859eSApple OSS Distributionsmaximum resolution of the clock. 37*0f4c859eSApple OSS Distributions</dl> 38*0f4c859eSApple OSS Distributions<p> 39*0f4c859eSApple OSS Distributions<dt> <var>attribute</var> 40*0f4c859eSApple OSS Distributions<dd> 41*0f4c859eSApple OSS Distributions[pointer to in scalar] 42*0f4c859eSApple OSS DistributionsNew attribute. 43*0f4c859eSApple OSS Distributions<p> 44*0f4c859eSApple OSS Distributions<dt> <var>attribute_count</var> 45*0f4c859eSApple OSS Distributions<dd> 46*0f4c859eSApple OSS Distributions[in scalar] 47*0f4c859eSApple OSS DistributionsThe size of the buffer (in natural-sized units). 48*0f4c859eSApple OSS Distributions</dl> 49*0f4c859eSApple OSS Distributions<h3>DESCRIPTION</h3> 50*0f4c859eSApple OSS Distributions<p> 51*0f4c859eSApple OSS DistributionsThe <strong>clock_set_attributes</strong> function sets attributes of 52*0f4c859eSApple OSS Distributionsa clock's operation. 53*0f4c859eSApple OSS Distributions<h3>NOTES</h3> 54*0f4c859eSApple OSS Distributions<p> 55*0f4c859eSApple OSS DistributionsThe main reason a clock's current resolution would not always equal its 56*0f4c859eSApple OSS Distributionsminimum resolution is because the overhead of sustaining the 57*0f4c859eSApple OSS Distributionsminimum resolution, 58*0f4c859eSApple OSS Distributionswhen it is not needed by any existing alarm service client, may be prohibitive 59*0f4c859eSApple OSS Distributionsfor a given hardware platform and underlying clock device. 60*0f4c859eSApple OSS Distributions<h3>RETURN VALUES</h3> 61*0f4c859eSApple OSS Distributions<p> 62*0f4c859eSApple OSS DistributionsOnly generic errors apply. 63*0f4c859eSApple OSS Distributions<h3>RELATED INFORMATION</h3> 64*0f4c859eSApple OSS Distributions<p> 65*0f4c859eSApple OSS DistributionsFunctions: 66*0f4c859eSApple OSS Distributions<a href="host_get_clock_control.html"><strong>host_get_clock_control</strong></a>, 67*0f4c859eSApple OSS Distributions<a href="clock_set_time.html"><strong>clock_set_time</strong></a>, 68*0f4c859eSApple OSS Distributions<a href="clock_get_attributes.html"><strong>clock_get_attributes</strong></a>. 69