1*fdd8201dSApple OSS Distributions<h2>clock_set_attributes</h2> 2*fdd8201dSApple OSS Distributions<hr> 3*fdd8201dSApple OSS Distributions<p> 4*fdd8201dSApple OSS Distributions<strong>Function</strong> - Set a particular clock's attributes. 5*fdd8201dSApple OSS Distributions<h3>SYNOPSIS</h3> 6*fdd8201dSApple OSS Distributions<pre> 7*fdd8201dSApple OSS Distributions<strong>kern_return_t clock_set_attributes</strong> 8*fdd8201dSApple OSS Distributions <strong>(clock_ctrl_t</strong> <var>clock_control</var>, 9*fdd8201dSApple OSS Distributions <strong>clock_flavor_t</strong> <var>flavor</var>, 10*fdd8201dSApple OSS Distributions <strong>clock_attr_t</strong> <var>attribute</var>, 11*fdd8201dSApple OSS Distributions <strong>clock_control</strong> <var>attribute_count</var><strong>);</strong> 12*fdd8201dSApple OSS Distributions</pre> 13*fdd8201dSApple OSS Distributions<h3>PARAMETERS</h3> 14*fdd8201dSApple OSS Distributions<dl> 15*fdd8201dSApple OSS Distributions<p> 16*fdd8201dSApple OSS Distributions<dt> <var>clock_control</var> 17*fdd8201dSApple OSS Distributions<dd> 18*fdd8201dSApple OSS Distributions[in clock-control send right] 19*fdd8201dSApple OSS DistributionsThe control port for the clock. 20*fdd8201dSApple OSS Distributions<p> 21*fdd8201dSApple OSS Distributions<dt> <var>flavor</var> 22*fdd8201dSApple OSS Distributions<dd> 23*fdd8201dSApple OSS Distributions[in scalar] 24*fdd8201dSApple OSS DistributionsType of information to be set. Defined values are: 25*fdd8201dSApple OSS Distributions<dl> 26*fdd8201dSApple OSS Distributions<p> 27*fdd8201dSApple OSS Distributions<dt> <strong>CLOCK_ALARM_CURRES</strong> 28*fdd8201dSApple OSS Distributions<dd> 29*fdd8201dSApple OSS DistributionsThe resolution, in nanoseconds, at which clock alarm and 30*fdd8201dSApple OSS Distributionssleep timers are currently serviced. Increasing the current 31*fdd8201dSApple OSS Distributionsresolution will have no impact on any pending clock alarms (i.e. 32*fdd8201dSApple OSS Distributionsthey will go off as originally scheduled). Decreasing the 33*fdd8201dSApple OSS Distributionscurrent resolution will truncate any pending alarms to the 34*fdd8201dSApple OSS Distributionsgranularity of the new current resolution. This value must be a 35*fdd8201dSApple OSS Distributionsmultiple of the minimum resolution and not greater than the 36*fdd8201dSApple OSS Distributionsmaximum resolution of the clock. 37*fdd8201dSApple OSS Distributions</dl> 38*fdd8201dSApple OSS Distributions<p> 39*fdd8201dSApple OSS Distributions<dt> <var>attribute</var> 40*fdd8201dSApple OSS Distributions<dd> 41*fdd8201dSApple OSS Distributions[pointer to in scalar] 42*fdd8201dSApple OSS DistributionsNew attribute. 43*fdd8201dSApple OSS Distributions<p> 44*fdd8201dSApple OSS Distributions<dt> <var>attribute_count</var> 45*fdd8201dSApple OSS Distributions<dd> 46*fdd8201dSApple OSS Distributions[in scalar] 47*fdd8201dSApple OSS DistributionsThe size of the buffer (in natural-sized units). 48*fdd8201dSApple OSS Distributions</dl> 49*fdd8201dSApple OSS Distributions<h3>DESCRIPTION</h3> 50*fdd8201dSApple OSS Distributions<p> 51*fdd8201dSApple OSS DistributionsThe <strong>clock_set_attributes</strong> function sets attributes of 52*fdd8201dSApple OSS Distributionsa clock's operation. 53*fdd8201dSApple OSS Distributions<h3>NOTES</h3> 54*fdd8201dSApple OSS Distributions<p> 55*fdd8201dSApple OSS DistributionsThe main reason a clock's current resolution would not always equal its 56*fdd8201dSApple OSS Distributionsminimum resolution is because the overhead of sustaining the 57*fdd8201dSApple OSS Distributionsminimum resolution, 58*fdd8201dSApple OSS Distributionswhen it is not needed by any existing alarm service client, may be prohibitive 59*fdd8201dSApple OSS Distributionsfor a given hardware platform and underlying clock device. 60*fdd8201dSApple OSS Distributions<h3>RETURN VALUES</h3> 61*fdd8201dSApple OSS Distributions<p> 62*fdd8201dSApple OSS DistributionsOnly generic errors apply. 63*fdd8201dSApple OSS Distributions<h3>RELATED INFORMATION</h3> 64*fdd8201dSApple OSS Distributions<p> 65*fdd8201dSApple OSS DistributionsFunctions: 66*fdd8201dSApple OSS Distributions<a href="host_get_clock_control.html"><strong>host_get_clock_control</strong></a>, 67*fdd8201dSApple OSS Distributions<a href="clock_set_time.html"><strong>clock_set_time</strong></a>, 68*fdd8201dSApple OSS Distributions<a href="clock_get_attributes.html"><strong>clock_get_attributes</strong></a>. 69