1*a1e26a70SApple OSS Distributions<h2>etap_trace_thread</h2> 2*a1e26a70SApple OSS Distributions<hr> 3*a1e26a70SApple OSS Distributions<p> 4*a1e26a70SApple OSS Distributions<strong>Function</strong> - Set a thread's ETAP trace status. 5*a1e26a70SApple OSS Distributions<h3>SYNOPSIS</h3> 6*a1e26a70SApple OSS Distributions<pre> 7*a1e26a70SApple OSS Distributions<strong>#include<mach/etap.h></strong> 8*a1e26a70SApple OSS Distributions 9*a1e26a70SApple OSS Distributions<strong>kern_return_t etap_trace_thread</strong> 10*a1e26a70SApple OSS Distributions <strong>(thread_act_t</strong> <var>target_thread</var>, 11*a1e26a70SApple OSS Distributions <strong>boolean_t</strong> <var>active</var><strong>);</strong> 12*a1e26a70SApple OSS Distributions</pre> 13*a1e26a70SApple OSS Distributions<h3>PARAMETERS</h3> 14*a1e26a70SApple OSS Distributions<dl> 15*a1e26a70SApple OSS Distributions<p> 16*a1e26a70SApple OSS Distributions<dt> <var>target_thread</var> 17*a1e26a70SApple OSS Distributions<dd> 18*a1e26a70SApple OSS DistributionsThe port of the thread who's ETAP trace status will be toggled. 19*a1e26a70SApple OSS Distributions<p> 20*a1e26a70SApple OSS Distributions<dt> <var>active</var> 21*a1e26a70SApple OSS Distributions<dd> 22*a1e26a70SApple OSS DistributionsThe boolean value (either TRUE or FALSE) stating whether the thread's 23*a1e26a70SApple OSS DistributionsETAP trace status will be activated or not. Passing TRUE will enable 24*a1e26a70SApple OSS Distributionsthe thread's trace status and FALSE will deactivate it. 25*a1e26a70SApple OSS Distributions</dl> 26*a1e26a70SApple OSS Distributions<h3>DESCRIPTION</h3> 27*a1e26a70SApple OSS Distributions<p> 28*a1e26a70SApple OSS DistributionsThe <strong>etap_trace_thread</strong> system call is used to 29*a1e26a70SApple OSS Distributionstoggle the ETAP trace status of a thread. 30*a1e26a70SApple OSS Distributions<h3>RETURN VALUES</h3> 31*a1e26a70SApple OSS Distributions<dl> 32*a1e26a70SApple OSS Distributions <dt> <strong>KERN_SUCCESS</strong> 33*a1e26a70SApple OSS Distributions <dd> 34*a1e26a70SApple OSS Distributions The call was performed successfully. 35*a1e26a70SApple OSS Distributions<p> 36*a1e26a70SApple OSS Distributions <dt> <strong>KERN_INVALID_ARGUMENT</strong> 37*a1e26a70SApple OSS Distributions <dd> 38*a1e26a70SApple OSS Distributions The value of <var>target_thread</var> does not name a valid thread. 39*a1e26a70SApple OSS Distributions<p> 40*a1e26a70SApple OSS Distributions <dt> <strong>KERN_FAILURE</strong> 41*a1e26a70SApple OSS Distributions <dd> 42*a1e26a70SApple OSS Distributions ETAP is not configured in the kernel. 43*a1e26a70SApple OSS Distributions</dl> 44*a1e26a70SApple OSS Distributions<h3>RELATED INFORMATION</h3> 45*a1e26a70SApple OSS Distributions<p> 46*a1e26a70SApple OSS DistributionsFunctions: 47*a1e26a70SApple OSS Distributions<a href="etap_probe.html"><strong>etap_probe</strong></a>, 48*a1e26a70SApple OSS Distributions<a href="etap_trace_event.html"><strong>etap_trace_event</strong></a>, 49*a1e26a70SApple OSS Distributions<a href="etap_get_info.html"><strong>etap_get_info</strong></a>. 50