1*c54f35caSApple OSS Distributions<h2>thread_info</h2> 2*c54f35caSApple OSS Distributions<hr> 3*c54f35caSApple OSS Distributions<p> 4*c54f35caSApple OSS Distributions<strong>Function</strong> - Return information about a thread. 5*c54f35caSApple OSS Distributions<h3>SYNOPSIS</h3> 6*c54f35caSApple OSS Distributions<pre> 7*c54f35caSApple OSS Distributions<strong>kern_return_t thread_info</strong> 8*c54f35caSApple OSS Distributions <strong>(thread_act_t</strong> <var>target_thread</var>, 9*c54f35caSApple OSS Distributions <strong>thread_flavor_t</strong> <var>flavor</var>, 10*c54f35caSApple OSS Distributions <strong>thread_info_t</strong> <var>thread_info</var>, 11*c54f35caSApple OSS Distributions <strong>mach_msg_type_number_t</strong> <var>thread_info_count</var><strong>);</strong> 12*c54f35caSApple OSS Distributions</pre> 13*c54f35caSApple OSS Distributions<h3>PARAMETERS</h3> 14*c54f35caSApple OSS Distributions<dl> 15*c54f35caSApple OSS Distributions<p> 16*c54f35caSApple OSS Distributions<dt> <var>target_thread</var> 17*c54f35caSApple OSS Distributions<dd> 18*c54f35caSApple OSS Distributions[in thread send right] 19*c54f35caSApple OSS DistributionsThe thread for which the information is to be 20*c54f35caSApple OSS Distributionsreturned. 21*c54f35caSApple OSS Distributions<p> 22*c54f35caSApple OSS Distributions<dt> <var>flavor</var> 23*c54f35caSApple OSS Distributions<dd> 24*c54f35caSApple OSS Distributions[in scalar] 25*c54f35caSApple OSS DistributionsThe type of information to be returned. Valid values are: 26*c54f35caSApple OSS Distributions<dl> 27*c54f35caSApple OSS Distributions<p> 28*c54f35caSApple OSS Distributions<dt> <strong>THREAD_BASIC_INFO</strong> 29*c54f35caSApple OSS Distributions<dd> 30*c54f35caSApple OSS DistributionsReturns basic information about the thread, such as the 31*c54f35caSApple OSS Distributionsthread's run state and suspend count. The returned structure is 32*c54f35caSApple OSS Distributions<strong>thread_basic_info</strong>. 33*c54f35caSApple OSS Distributions<p> 34*c54f35caSApple OSS Distributions<dt> <strong>THREAD_SCHED_FIFO_INFO</strong> 35*c54f35caSApple OSS Distributions<dd> 36*c54f35caSApple OSS DistributionsReturns FIFO scheduling policy information about the thread. 37*c54f35caSApple OSS DistributionsThe returned structure is <strong>policy_fifo_info</strong>. 38*c54f35caSApple OSS Distributions<p> 39*c54f35caSApple OSS Distributions<dt> <strong>THREAD_SCHED_RR_INFO</strong> 40*c54f35caSApple OSS Distributions<dd> 41*c54f35caSApple OSS DistributionsReturns round-robin scheduling policy information about the 42*c54f35caSApple OSS Distributionsthread. The returned structure is <strong>policy_rr_info</strong>. 43*c54f35caSApple OSS Distributions<p> 44*c54f35caSApple OSS Distributions<dt> <strong>THREAD_SCHED_TIMESHARE_INFO</strong> 45*c54f35caSApple OSS Distributions<dd> 46*c54f35caSApple OSS DistributionsReturns timeshare scheduling policy information about the 47*c54f35caSApple OSS Distributionsthread. The returned structure is <strong>policy_timeshare_info</strong>. 48*c54f35caSApple OSS Distributions</dl> 49*c54f35caSApple OSS Distributions<p> 50*c54f35caSApple OSS Distributions<dt> <var>thread_info</var> 51*c54f35caSApple OSS Distributions<dd> 52*c54f35caSApple OSS Distributions[out structure] 53*c54f35caSApple OSS DistributionsInformation about the specified thread. 54*c54f35caSApple OSS Distributions<p> 55*c54f35caSApple OSS Distributions<dt> <var>thread_info_count</var> 56*c54f35caSApple OSS Distributions<dd> 57*c54f35caSApple OSS Distributions[in/out scalar] 58*c54f35caSApple OSS DistributionsOn input, the maximum size of the buffer; on output, the 59*c54f35caSApple OSS Distributionssize returned (in natural-sized units). 60*c54f35caSApple OSS Distributions</dl> 61*c54f35caSApple OSS Distributions<h3>DESCRIPTION</h3> 62*c54f35caSApple OSS Distributions<p> 63*c54f35caSApple OSS DistributionsThe <strong>thread_info</strong> function returns an information structure 64*c54f35caSApple OSS Distributionsof type <var>flavor</var>. 65*c54f35caSApple OSS Distributions<h3>NOTES</h3> 66*c54f35caSApple OSS Distributions<p> 67*c54f35caSApple OSS DistributionsAt any given time, a thread has only one scheduling policy in 68*c54f35caSApple OSS Distributionseffect for it. Thus, 69*c54f35caSApple OSS Distributionsonly one of the scheduling information structures will be valid, 70*c54f35caSApple OSS Distributionsthat so indicated 71*c54f35caSApple OSS Distributionsby the policy value returned by <strong>THREAD_BASIC_INFO</strong>. 72*c54f35caSApple OSS Distributions<h3>RETURN VALUES</h3> 73*c54f35caSApple OSS Distributions<p> 74*c54f35caSApple OSS DistributionsOnly generic errors apply. 75*c54f35caSApple OSS Distributions<h3>RELATED INFORMATION</h3> 76*c54f35caSApple OSS Distributions<p> 77*c54f35caSApple OSS DistributionsFunctions: 78*c54f35caSApple OSS Distributions<a href="task_info.html"><strong>task_info</strong></a>, 79*c54f35caSApple OSS Distributions<a href="task_threads.html"><strong>task_threads</strong></a>, 80*c54f35caSApple OSS Distributions<a href="thread_get_state.html"><strong>thread_get_state</strong></a>, 81*c54f35caSApple OSS Distributions<a href="thread_set_special_port.html"><strong>thread_set_special_port</strong></a>, 82*c54f35caSApple OSS Distributions<a href="thread_set_state.html"><strong>thread_set_state</strong></a>. 83*c54f35caSApple OSS Distributions<p> 84*c54f35caSApple OSS DistributionsData Structures: 85*c54f35caSApple OSS Distributions<a href="thread_basic_info.html"><strong>thread_basic_info</strong></a>, 86*c54f35caSApple OSS Distributions<a href="policy_timeshare_info.html"><strong>policy_timeshare_info</strong></a>, 87*c54f35caSApple OSS Distributions<a href="policy_fifo_info.html"><strong>policy_fifo_info</strong></a>, 88*c54f35caSApple OSS Distributions<a href="policy_rr_info.html"><strong>policy_rr_info</strong></a>. 89