1*19c3b8c2SApple OSS Distributions<h2>etap_trace_thread</h2> 2*19c3b8c2SApple OSS Distributions<hr> 3*19c3b8c2SApple OSS Distributions<p> 4*19c3b8c2SApple OSS Distributions<strong>Function</strong> - Set a thread's ETAP trace status. 5*19c3b8c2SApple OSS Distributions<h3>SYNOPSIS</h3> 6*19c3b8c2SApple OSS Distributions<pre> 7*19c3b8c2SApple OSS Distributions<strong>#include<mach/etap.h></strong> 8*19c3b8c2SApple OSS Distributions 9*19c3b8c2SApple OSS Distributions<strong>kern_return_t etap_trace_thread</strong> 10*19c3b8c2SApple OSS Distributions <strong>(thread_act_t</strong> <var>target_thread</var>, 11*19c3b8c2SApple OSS Distributions <strong>boolean_t</strong> <var>active</var><strong>);</strong> 12*19c3b8c2SApple OSS Distributions</pre> 13*19c3b8c2SApple OSS Distributions<h3>PARAMETERS</h3> 14*19c3b8c2SApple OSS Distributions<dl> 15*19c3b8c2SApple OSS Distributions<p> 16*19c3b8c2SApple OSS Distributions<dt> <var>target_thread</var> 17*19c3b8c2SApple OSS Distributions<dd> 18*19c3b8c2SApple OSS DistributionsThe port of the thread who's ETAP trace status will be toggled. 19*19c3b8c2SApple OSS Distributions<p> 20*19c3b8c2SApple OSS Distributions<dt> <var>active</var> 21*19c3b8c2SApple OSS Distributions<dd> 22*19c3b8c2SApple OSS DistributionsThe boolean value (either TRUE or FALSE) stating whether the thread's 23*19c3b8c2SApple OSS DistributionsETAP trace status will be activated or not. Passing TRUE will enable 24*19c3b8c2SApple OSS Distributionsthe thread's trace status and FALSE will deactivate it. 25*19c3b8c2SApple OSS Distributions</dl> 26*19c3b8c2SApple OSS Distributions<h3>DESCRIPTION</h3> 27*19c3b8c2SApple OSS Distributions<p> 28*19c3b8c2SApple OSS DistributionsThe <strong>etap_trace_thread</strong> system call is used to 29*19c3b8c2SApple OSS Distributionstoggle the ETAP trace status of a thread. 30*19c3b8c2SApple OSS Distributions<h3>RETURN VALUES</h3> 31*19c3b8c2SApple OSS Distributions<dl> 32*19c3b8c2SApple OSS Distributions <dt> <strong>KERN_SUCCESS</strong> 33*19c3b8c2SApple OSS Distributions <dd> 34*19c3b8c2SApple OSS Distributions The call was performed successfully. 35*19c3b8c2SApple OSS Distributions<p> 36*19c3b8c2SApple OSS Distributions <dt> <strong>KERN_INVALID_ARGUMENT</strong> 37*19c3b8c2SApple OSS Distributions <dd> 38*19c3b8c2SApple OSS Distributions The value of <var>target_thread</var> does not name a valid thread. 39*19c3b8c2SApple OSS Distributions<p> 40*19c3b8c2SApple OSS Distributions <dt> <strong>KERN_FAILURE</strong> 41*19c3b8c2SApple OSS Distributions <dd> 42*19c3b8c2SApple OSS Distributions ETAP is not configured in the kernel. 43*19c3b8c2SApple OSS Distributions</dl> 44*19c3b8c2SApple OSS Distributions<h3>RELATED INFORMATION</h3> 45*19c3b8c2SApple OSS Distributions<p> 46*19c3b8c2SApple OSS DistributionsFunctions: 47*19c3b8c2SApple OSS Distributions<a href="etap_probe.html"><strong>etap_probe</strong></a>, 48*19c3b8c2SApple OSS Distributions<a href="etap_trace_event.html"><strong>etap_trace_event</strong></a>, 49*19c3b8c2SApple OSS Distributions<a href="etap_get_info.html"><strong>etap_get_info</strong></a>. 50