1*a1e26a70SApple OSS Distributions<h2>processor_set_max_priority</h2> 2*a1e26a70SApple OSS Distributions<hr> 3*a1e26a70SApple OSS Distributions<p> 4*a1e26a70SApple OSS Distributions<strong>Function</strong> - Sets the maximum scheduling priority for a processor set. 5*a1e26a70SApple OSS Distributions<h3>SYNOPSIS</h3> 6*a1e26a70SApple OSS Distributions<pre> 7*a1e26a70SApple OSS Distributions<strong>#include< mach/mach_host.h></strong> 8*a1e26a70SApple OSS Distributions 9*a1e26a70SApple OSS Distributions<strong>kern_return_t processor_set_max_priority</strong> 10*a1e26a70SApple OSS Distributions <strong>(processor_set_t</strong> <var>processor_set</var>, 11*a1e26a70SApple OSS Distributions <strong>int</strong> <var>priority</var>, 12*a1e26a70SApple OSS Distributions <strong>boolean_t</strong> <var>change_threads</var><strong>);</strong> 13*a1e26a70SApple OSS Distributions</pre> 14*a1e26a70SApple OSS Distributions<h3>PARAMETERS</h3> 15*a1e26a70SApple OSS Distributions<dl> 16*a1e26a70SApple OSS Distributions<dt> <var>processor_set</var> 17*a1e26a70SApple OSS Distributions<dd> 18*a1e26a70SApple OSS Distributions[in processor-set-control port] The control port for the processor set whose maximum scheduling priority is to be set. 19*a1e26a70SApple OSS Distributions<dt> <var>priority</var> 20*a1e26a70SApple OSS Distributions<dd> 21*a1e26a70SApple OSS Distributions[in scalar] The new priority for the processor set. 22*a1e26a70SApple OSS Distributions<dt> <var>change_threads</var> 23*a1e26a70SApple OSS Distributions<dd> 24*a1e26a70SApple OSS Distributions[in scalar] True if the maximum priority of existing threads assigned to this processor set should also be changed. 25*a1e26a70SApple OSS Distributions</dl> 26*a1e26a70SApple OSS Distributions<h3>DESCRIPTION</h3> 27*a1e26a70SApple OSS Distributions<p> 28*a1e26a70SApple OSS DistributionsThe <strong>processor_set_max_priority</strong> 29*a1e26a70SApple OSS Distributionsfunction sets the maximum scheduling <var>priority</var> for 30*a1e26a70SApple OSS Distributions<var>processor_set</var>. The maximum <var>priority</var> of a 31*a1e26a70SApple OSS Distributionsprocessor set is used only when creating new threads. A new thread's 32*a1e26a70SApple OSS Distributionsmaximum <var>priority</var> is set to that of its assigned processor 33*a1e26a70SApple OSS Distributionsset. When assigned to a processor set, a thread's maximum 34*a1e26a70SApple OSS Distributions<var>priority</var> is reduced, if necessary, to that of its new 35*a1e26a70SApple OSS Distributionsprocessor set; its current <var>priority</var> is also reduced, as 36*a1e26a70SApple OSS Distributionsneeded. Changing the maximum <var>priority</var> of a processor set 37*a1e26a70SApple OSS Distributionsdoes not affect the <var>priority</var> of the currently assigned 38*a1e26a70SApple OSS Distributionsthreads unless <var>change_threads</var> is TRUE. If this 39*a1e26a70SApple OSS Distributions<var>priority</var> change violates the maximum <var>priority</var> of 40*a1e26a70SApple OSS Distributionssome threads, their maximum priorities will be reduced to match. 41*a1e26a70SApple OSS Distributions<h3>RETURN VALUES</h3> 42*a1e26a70SApple OSS Distributions<p> 43*a1e26a70SApple OSS DistributionsOnly generic errors apply. 44*a1e26a70SApple OSS Distributions<h3>RELATED INFORMATION</h3> 45*a1e26a70SApple OSS Distributions<p> 46*a1e26a70SApple OSS DistributionsFunctions: 47*a1e26a70SApple OSS Distributions<a href="thread_assign.html">thread_assign</a>. 48