1*5e3eaea3SApple OSS Distributions<h2>processor_set_policy_disable</h2> 2*5e3eaea3SApple OSS Distributions<hr> 3*5e3eaea3SApple OSS Distributions<p> 4*5e3eaea3SApple OSS Distributions<strong>Function</strong> - Disables a scheduling policy for a processor set. 5*5e3eaea3SApple OSS Distributions<h3>SYNOPSIS</h3> 6*5e3eaea3SApple OSS Distributions<pre> 7*5e3eaea3SApple OSS Distributions<strong>#include< mach/mach_host.h></strong> 8*5e3eaea3SApple OSS Distributions 9*5e3eaea3SApple OSS Distributions<strong>kern_return_t processor_set_policy_disable</strong> 10*5e3eaea3SApple OSS Distributions <strong>(processor_set_t</strong> <var>processor_set</var>, 11*5e3eaea3SApple OSS Distributions <strong>int</strong> <var>policy</var>, 12*5e3eaea3SApple OSS Distributions <strong>boolean_t</strong> <var>change_threads</var><strong>);</strong> 13*5e3eaea3SApple OSS Distributions</pre> 14*5e3eaea3SApple OSS Distributions<h3>PARAMETERS</h3> 15*5e3eaea3SApple OSS Distributions<dl> 16*5e3eaea3SApple OSS Distributions<dt> <var>processor_set</var> 17*5e3eaea3SApple OSS Distributions<dd> 18*5e3eaea3SApple OSS Distributions[in processor-set-control port] The control port for the processor set for which a scheduling policy is to be disabled. 19*5e3eaea3SApple OSS Distributions<dt> <var>policy</var> 20*5e3eaea3SApple OSS Distributions<dd> 21*5e3eaea3SApple OSS Distributions[in scalar] Policy to be disabled. The values currently defined are POLICY_TIMESHARE and POLICY_FIXEDPRI. 22*5e3eaea3SApple OSS Distributions<dt> <var>change_threads</var> 23*5e3eaea3SApple OSS Distributions<dd> 24*5e3eaea3SApple OSS Distributions[in scalar] If true, causes the scheduling policy for all threads currently running with policy to POLICY_TIMESHARE. 25*5e3eaea3SApple OSS Distributions</dl> 26*5e3eaea3SApple OSS Distributions<h3>DESCRIPTION</h3> 27*5e3eaea3SApple OSS Distributions<p> 28*5e3eaea3SApple OSS DistributionsThe <strong>processor_set_policy_disable</strong> 29*5e3eaea3SApple OSS Distributionsfunction restricts the set of scheduling policies allowed for 30*5e3eaea3SApple OSS Distributions<var>processor_set</var>. The set of scheduling policies allowed for a 31*5e3eaea3SApple OSS Distributionsprocessor set is the set of policies allowed to be set for threads 32*5e3eaea3SApple OSS Distributionsassigned to that processor set. The current set of permitted policies 33*5e3eaea3SApple OSS Distributionscan be obtained from <strong>processor_set_info</strong>. Timesharing may 34*5e3eaea3SApple OSS Distributionsnot be forbidden for any processor set. This is a compromise to reduce 35*5e3eaea3SApple OSS Distributionsthe complexity of the assign operation; any thread whose 36*5e3eaea3SApple OSS Distributions<var>policy</var> is forbidden by its target processor set has its 37*5e3eaea3SApple OSS Distributions<var>policy</var> reset to timesharing. Disabling a scheduling 38*5e3eaea3SApple OSS Distributions<var>policy</var> for a processor set has no effect on threads 39*5e3eaea3SApple OSS Distributionscurrently assigned to that processor set unless 40*5e3eaea3SApple OSS Distributions<var>change_threads</var> is TRUE, in which case their policies will 41*5e3eaea3SApple OSS Distributionsbe reset to timesharing. 42*5e3eaea3SApple OSS Distributions<h3>RETURN VALUES</h3> 43*5e3eaea3SApple OSS Distributions<p> 44*5e3eaea3SApple OSS DistributionsOnly generic errors apply. 45*5e3eaea3SApple OSS Distributions<h3>RELATED INFORMATION</h3> 46*5e3eaea3SApple OSS Distributions<p> 47*5e3eaea3SApple OSS DistributionsFunctions: 48*5e3eaea3SApple OSS Distributions<a href="P_set_policy_enable.html">processor_set_policy_enable</a>, 49*5e3eaea3SApple OSS Distributions<a href="processor_set_info.html">processor_set_info</a>, 50*5e3eaea3SApple OSS Distributions<a href="thread_policy.html">thread_policy</a>. 51