1*0f4c859eSApple OSS Distributions<h2>thread_info</h2> 2*0f4c859eSApple OSS Distributions<hr> 3*0f4c859eSApple OSS Distributions<p> 4*0f4c859eSApple OSS Distributions<strong>Function</strong> - Return information about a thread. 5*0f4c859eSApple OSS Distributions<h3>SYNOPSIS</h3> 6*0f4c859eSApple OSS Distributions<pre> 7*0f4c859eSApple OSS Distributions<strong>kern_return_t thread_info</strong> 8*0f4c859eSApple OSS Distributions <strong>(thread_act_t</strong> <var>target_thread</var>, 9*0f4c859eSApple OSS Distributions <strong>thread_flavor_t</strong> <var>flavor</var>, 10*0f4c859eSApple OSS Distributions <strong>thread_info_t</strong> <var>thread_info</var>, 11*0f4c859eSApple OSS Distributions <strong>mach_msg_type_number_t</strong> <var>thread_info_count</var><strong>);</strong> 12*0f4c859eSApple OSS Distributions</pre> 13*0f4c859eSApple OSS Distributions<h3>PARAMETERS</h3> 14*0f4c859eSApple OSS Distributions<dl> 15*0f4c859eSApple OSS Distributions<p> 16*0f4c859eSApple OSS Distributions<dt> <var>target_thread</var> 17*0f4c859eSApple OSS Distributions<dd> 18*0f4c859eSApple OSS Distributions[in thread send right] 19*0f4c859eSApple OSS DistributionsThe thread for which the information is to be 20*0f4c859eSApple OSS Distributionsreturned. 21*0f4c859eSApple OSS Distributions<p> 22*0f4c859eSApple OSS Distributions<dt> <var>flavor</var> 23*0f4c859eSApple OSS Distributions<dd> 24*0f4c859eSApple OSS Distributions[in scalar] 25*0f4c859eSApple OSS DistributionsThe type of information to be returned. Valid values are: 26*0f4c859eSApple OSS Distributions<dl> 27*0f4c859eSApple OSS Distributions<p> 28*0f4c859eSApple OSS Distributions<dt> <strong>THREAD_BASIC_INFO</strong> 29*0f4c859eSApple OSS Distributions<dd> 30*0f4c859eSApple OSS DistributionsReturns basic information about the thread, such as the 31*0f4c859eSApple OSS Distributionsthread's run state and suspend count. The returned structure is 32*0f4c859eSApple OSS Distributions<strong>thread_basic_info</strong>. 33*0f4c859eSApple OSS Distributions<p> 34*0f4c859eSApple OSS Distributions<dt> <strong>THREAD_SCHED_FIFO_INFO</strong> 35*0f4c859eSApple OSS Distributions<dd> 36*0f4c859eSApple OSS DistributionsReturns FIFO scheduling policy information about the thread. 37*0f4c859eSApple OSS DistributionsThe returned structure is <strong>policy_fifo_info</strong>. 38*0f4c859eSApple OSS Distributions<p> 39*0f4c859eSApple OSS Distributions<dt> <strong>THREAD_SCHED_RR_INFO</strong> 40*0f4c859eSApple OSS Distributions<dd> 41*0f4c859eSApple OSS DistributionsReturns round-robin scheduling policy information about the 42*0f4c859eSApple OSS Distributionsthread. The returned structure is <strong>policy_rr_info</strong>. 43*0f4c859eSApple OSS Distributions<p> 44*0f4c859eSApple OSS Distributions<dt> <strong>THREAD_SCHED_TIMESHARE_INFO</strong> 45*0f4c859eSApple OSS Distributions<dd> 46*0f4c859eSApple OSS DistributionsReturns timeshare scheduling policy information about the 47*0f4c859eSApple OSS Distributionsthread. The returned structure is <strong>policy_timeshare_info</strong>. 48*0f4c859eSApple OSS Distributions</dl> 49*0f4c859eSApple OSS Distributions<p> 50*0f4c859eSApple OSS Distributions<dt> <var>thread_info</var> 51*0f4c859eSApple OSS Distributions<dd> 52*0f4c859eSApple OSS Distributions[out structure] 53*0f4c859eSApple OSS DistributionsInformation about the specified thread. 54*0f4c859eSApple OSS Distributions<p> 55*0f4c859eSApple OSS Distributions<dt> <var>thread_info_count</var> 56*0f4c859eSApple OSS Distributions<dd> 57*0f4c859eSApple OSS Distributions[in/out scalar] 58*0f4c859eSApple OSS DistributionsOn input, the maximum size of the buffer; on output, the 59*0f4c859eSApple OSS Distributionssize returned (in natural-sized units). 60*0f4c859eSApple OSS Distributions</dl> 61*0f4c859eSApple OSS Distributions<h3>DESCRIPTION</h3> 62*0f4c859eSApple OSS Distributions<p> 63*0f4c859eSApple OSS DistributionsThe <strong>thread_info</strong> function returns an information structure 64*0f4c859eSApple OSS Distributionsof type <var>flavor</var>. 65*0f4c859eSApple OSS Distributions<h3>NOTES</h3> 66*0f4c859eSApple OSS Distributions<p> 67*0f4c859eSApple OSS DistributionsAt any given time, a thread has only one scheduling policy in 68*0f4c859eSApple OSS Distributionseffect for it. Thus, 69*0f4c859eSApple OSS Distributionsonly one of the scheduling information structures will be valid, 70*0f4c859eSApple OSS Distributionsthat so indicated 71*0f4c859eSApple OSS Distributionsby the policy value returned by <strong>THREAD_BASIC_INFO</strong>. 72*0f4c859eSApple OSS Distributions<h3>RETURN VALUES</h3> 73*0f4c859eSApple OSS Distributions<p> 74*0f4c859eSApple OSS DistributionsOnly generic errors apply. 75*0f4c859eSApple OSS Distributions<h3>RELATED INFORMATION</h3> 76*0f4c859eSApple OSS Distributions<p> 77*0f4c859eSApple OSS DistributionsFunctions: 78*0f4c859eSApple OSS Distributions<a href="task_info.html"><strong>task_info</strong></a>, 79*0f4c859eSApple OSS Distributions<a href="task_threads.html"><strong>task_threads</strong></a>, 80*0f4c859eSApple OSS Distributions<a href="thread_get_state.html"><strong>thread_get_state</strong></a>, 81*0f4c859eSApple OSS Distributions<a href="thread_set_special_port.html"><strong>thread_set_special_port</strong></a>, 82*0f4c859eSApple OSS Distributions<a href="thread_set_state.html"><strong>thread_set_state</strong></a>. 83*0f4c859eSApple OSS Distributions<p> 84*0f4c859eSApple OSS DistributionsData Structures: 85*0f4c859eSApple OSS Distributions<a href="thread_basic_info.html"><strong>thread_basic_info</strong></a>, 86*0f4c859eSApple OSS Distributions<a href="policy_timeshare_info.html"><strong>policy_timeshare_info</strong></a>, 87*0f4c859eSApple OSS Distributions<a href="policy_fifo_info.html"><strong>policy_fifo_info</strong></a>, 88*0f4c859eSApple OSS Distributions<a href="policy_rr_info.html"><strong>policy_rr_info</strong></a>. 89