1*1031c584SApple OSS Distributions<h2>thread_info</h2> 2*1031c584SApple OSS Distributions<hr> 3*1031c584SApple OSS Distributions<p> 4*1031c584SApple OSS Distributions<strong>Function</strong> - Return information about a thread. 5*1031c584SApple OSS Distributions<h3>SYNOPSIS</h3> 6*1031c584SApple OSS Distributions<pre> 7*1031c584SApple OSS Distributions<strong>kern_return_t thread_info</strong> 8*1031c584SApple OSS Distributions <strong>(thread_act_t</strong> <var>target_thread</var>, 9*1031c584SApple OSS Distributions <strong>thread_flavor_t</strong> <var>flavor</var>, 10*1031c584SApple OSS Distributions <strong>thread_info_t</strong> <var>thread_info</var>, 11*1031c584SApple OSS Distributions <strong>mach_msg_type_number_t</strong> <var>thread_info_count</var><strong>);</strong> 12*1031c584SApple OSS Distributions</pre> 13*1031c584SApple OSS Distributions<h3>PARAMETERS</h3> 14*1031c584SApple OSS Distributions<dl> 15*1031c584SApple OSS Distributions<p> 16*1031c584SApple OSS Distributions<dt> <var>target_thread</var> 17*1031c584SApple OSS Distributions<dd> 18*1031c584SApple OSS Distributions[in thread send right] 19*1031c584SApple OSS DistributionsThe thread for which the information is to be 20*1031c584SApple OSS Distributionsreturned. 21*1031c584SApple OSS Distributions<p> 22*1031c584SApple OSS Distributions<dt> <var>flavor</var> 23*1031c584SApple OSS Distributions<dd> 24*1031c584SApple OSS Distributions[in scalar] 25*1031c584SApple OSS DistributionsThe type of information to be returned. Valid values are: 26*1031c584SApple OSS Distributions<dl> 27*1031c584SApple OSS Distributions<p> 28*1031c584SApple OSS Distributions<dt> <strong>THREAD_BASIC_INFO</strong> 29*1031c584SApple OSS Distributions<dd> 30*1031c584SApple OSS DistributionsReturns basic information about the thread, such as the 31*1031c584SApple OSS Distributionsthread's run state and suspend count. The returned structure is 32*1031c584SApple OSS Distributions<strong>thread_basic_info</strong>. 33*1031c584SApple OSS Distributions<p> 34*1031c584SApple OSS Distributions<dt> <strong>THREAD_SCHED_FIFO_INFO</strong> 35*1031c584SApple OSS Distributions<dd> 36*1031c584SApple OSS DistributionsReturns FIFO scheduling policy information about the thread. 37*1031c584SApple OSS DistributionsThe returned structure is <strong>policy_fifo_info</strong>. 38*1031c584SApple OSS Distributions<p> 39*1031c584SApple OSS Distributions<dt> <strong>THREAD_SCHED_RR_INFO</strong> 40*1031c584SApple OSS Distributions<dd> 41*1031c584SApple OSS DistributionsReturns round-robin scheduling policy information about the 42*1031c584SApple OSS Distributionsthread. The returned structure is <strong>policy_rr_info</strong>. 43*1031c584SApple OSS Distributions<p> 44*1031c584SApple OSS Distributions<dt> <strong>THREAD_SCHED_TIMESHARE_INFO</strong> 45*1031c584SApple OSS Distributions<dd> 46*1031c584SApple OSS DistributionsReturns timeshare scheduling policy information about the 47*1031c584SApple OSS Distributionsthread. The returned structure is <strong>policy_timeshare_info</strong>. 48*1031c584SApple OSS Distributions</dl> 49*1031c584SApple OSS Distributions<p> 50*1031c584SApple OSS Distributions<dt> <var>thread_info</var> 51*1031c584SApple OSS Distributions<dd> 52*1031c584SApple OSS Distributions[out structure] 53*1031c584SApple OSS DistributionsInformation about the specified thread. 54*1031c584SApple OSS Distributions<p> 55*1031c584SApple OSS Distributions<dt> <var>thread_info_count</var> 56*1031c584SApple OSS Distributions<dd> 57*1031c584SApple OSS Distributions[in/out scalar] 58*1031c584SApple OSS DistributionsOn input, the maximum size of the buffer; on output, the 59*1031c584SApple OSS Distributionssize returned (in natural-sized units). 60*1031c584SApple OSS Distributions</dl> 61*1031c584SApple OSS Distributions<h3>DESCRIPTION</h3> 62*1031c584SApple OSS Distributions<p> 63*1031c584SApple OSS DistributionsThe <strong>thread_info</strong> function returns an information structure 64*1031c584SApple OSS Distributionsof type <var>flavor</var>. 65*1031c584SApple OSS Distributions<h3>NOTES</h3> 66*1031c584SApple OSS Distributions<p> 67*1031c584SApple OSS DistributionsAt any given time, a thread has only one scheduling policy in 68*1031c584SApple OSS Distributionseffect for it. Thus, 69*1031c584SApple OSS Distributionsonly one of the scheduling information structures will be valid, 70*1031c584SApple OSS Distributionsthat so indicated 71*1031c584SApple OSS Distributionsby the policy value returned by <strong>THREAD_BASIC_INFO</strong>. 72*1031c584SApple OSS Distributions<h3>RETURN VALUES</h3> 73*1031c584SApple OSS Distributions<p> 74*1031c584SApple OSS DistributionsOnly generic errors apply. 75*1031c584SApple OSS Distributions<h3>RELATED INFORMATION</h3> 76*1031c584SApple OSS Distributions<p> 77*1031c584SApple OSS DistributionsFunctions: 78*1031c584SApple OSS Distributions<a href="task_info.html"><strong>task_info</strong></a>, 79*1031c584SApple OSS Distributions<a href="task_threads.html"><strong>task_threads</strong></a>, 80*1031c584SApple OSS Distributions<a href="thread_get_state.html"><strong>thread_get_state</strong></a>, 81*1031c584SApple OSS Distributions<a href="thread_set_special_port.html"><strong>thread_set_special_port</strong></a>, 82*1031c584SApple OSS Distributions<a href="thread_set_state.html"><strong>thread_set_state</strong></a>. 83*1031c584SApple OSS Distributions<p> 84*1031c584SApple OSS DistributionsData Structures: 85*1031c584SApple OSS Distributions<a href="thread_basic_info.html"><strong>thread_basic_info</strong></a>, 86*1031c584SApple OSS Distributions<a href="policy_timeshare_info.html"><strong>policy_timeshare_info</strong></a>, 87*1031c584SApple OSS Distributions<a href="policy_fifo_info.html"><strong>policy_fifo_info</strong></a>, 88*1031c584SApple OSS Distributions<a href="policy_rr_info.html"><strong>policy_rr_info</strong></a>. 89