1*c54f35caSApple OSS Distributions<h2>thread_wire</h2> 2*c54f35caSApple OSS Distributions<hr> 3*c54f35caSApple OSS Distributions<p> 4*c54f35caSApple OSS Distributions<strong>Function</strong> - Mark the thread as privileged with respect to kernel resources. 5*c54f35caSApple OSS Distributions<h3>SYNOPSIS</h3> 6*c54f35caSApple OSS Distributions<pre> 7*c54f35caSApple OSS Distributions<strong>kern_return_t thread_wire</strong> 8*c54f35caSApple OSS Distributions <strong>(host_priv_t</strong> <var>host_priv</var>, 9*c54f35caSApple OSS Distributions <strong>thread_act_t</strong> <var>thread</var>, 10*c54f35caSApple OSS Distributions <strong>boolean_t</strong> <var>wired</var><strong>);</strong> 11*c54f35caSApple OSS Distributions</pre> 12*c54f35caSApple OSS Distributions<h3>PARAMETERS</h3> 13*c54f35caSApple OSS Distributions<dl> 14*c54f35caSApple OSS Distributions<p> 15*c54f35caSApple OSS Distributions<dt> <var>host_priv</var> 16*c54f35caSApple OSS Distributions<dd> 17*c54f35caSApple OSS Distributions[in host-control send right] 18*c54f35caSApple OSS DistributionsThe privileged control port for the host on 19*c54f35caSApple OSS Distributionswhich the thread executes. 20*c54f35caSApple OSS Distributions<p> 21*c54f35caSApple OSS Distributions<dt> <var>thread</var> 22*c54f35caSApple OSS Distributions<dd> 23*c54f35caSApple OSS Distributions[in thread send right] 24*c54f35caSApple OSS DistributionsThe thread to be wired. 25*c54f35caSApple OSS Distributions<p> 26*c54f35caSApple OSS Distributions<dt> <var>wired</var> 27*c54f35caSApple OSS Distributions<dd> 28*c54f35caSApple OSS Distributions[in scalar] 29*c54f35caSApple OSS Distributions<strong>TRUE</strong> if the thread is to be wired. 30*c54f35caSApple OSS Distributions</dl> 31*c54f35caSApple OSS Distributions<h3>DESCRIPTION</h3> 32*c54f35caSApple OSS Distributions<p> 33*c54f35caSApple OSS DistributionsThe <strong>thread_wire</strong> function marks the thread as "wired". 34*c54f35caSApple OSS DistributionsA "wired" thread is 35*c54f35caSApple OSS Distributionsalways eligible to be scheduled and can consume physical memory even when 36*c54f35caSApple OSS Distributionsfree memory is scarce. This property should be assigned to threads in the 37*c54f35caSApple OSS Distributionsdefault page-out path. Threads not in the default page-out path 38*c54f35caSApple OSS Distributionsshould not have 39*c54f35caSApple OSS Distributionsthis property to prevent the kernel's free list of pages from being exhausted. 40*c54f35caSApple OSS Distributions<h3>RETURN VALUES</h3> 41*c54f35caSApple OSS Distributions<dl> 42*c54f35caSApple OSS Distributions<p> 43*c54f35caSApple OSS Distributions<dt> <strong>KERN_INVALID_ARGUMENT</strong> 44*c54f35caSApple OSS Distributions<dd> 45*c54f35caSApple OSS Distributions<var>thread</var> is not a thread port. 46*c54f35caSApple OSS Distributions.P 47*c54f35caSApple OSS Distributions<var>host_priv</var> is not the control port for the host on which <var>thread</var> 48*c54f35caSApple OSS Distributionsexecutes. 49*c54f35caSApple OSS Distributions</dl> 50*c54f35caSApple OSS Distributions<h3>RELATED INFORMATION</h3> 51*c54f35caSApple OSS Distributions<p> 52*c54f35caSApple OSS DistributionsFunctions: 53*c54f35caSApple OSS Distributions<a href="vm_wire.html"><strong>vm_wire</strong></a>. 54