1*2c2f96dcSApple OSS Distributions<h2>thread_info</h2> 2*2c2f96dcSApple OSS Distributions<hr> 3*2c2f96dcSApple OSS Distributions<p> 4*2c2f96dcSApple OSS Distributions<strong>Function</strong> - Return information about a thread. 5*2c2f96dcSApple OSS Distributions<h3>SYNOPSIS</h3> 6*2c2f96dcSApple OSS Distributions<pre> 7*2c2f96dcSApple OSS Distributions<strong>kern_return_t thread_info</strong> 8*2c2f96dcSApple OSS Distributions <strong>(thread_act_t</strong> <var>target_thread</var>, 9*2c2f96dcSApple OSS Distributions <strong>thread_flavor_t</strong> <var>flavor</var>, 10*2c2f96dcSApple OSS Distributions <strong>thread_info_t</strong> <var>thread_info</var>, 11*2c2f96dcSApple OSS Distributions <strong>mach_msg_type_number_t</strong> <var>thread_info_count</var><strong>);</strong> 12*2c2f96dcSApple OSS Distributions</pre> 13*2c2f96dcSApple OSS Distributions<h3>PARAMETERS</h3> 14*2c2f96dcSApple OSS Distributions<dl> 15*2c2f96dcSApple OSS Distributions<p> 16*2c2f96dcSApple OSS Distributions<dt> <var>target_thread</var> 17*2c2f96dcSApple OSS Distributions<dd> 18*2c2f96dcSApple OSS Distributions[in thread send right] 19*2c2f96dcSApple OSS DistributionsThe thread for which the information is to be 20*2c2f96dcSApple OSS Distributionsreturned. 21*2c2f96dcSApple OSS Distributions<p> 22*2c2f96dcSApple OSS Distributions<dt> <var>flavor</var> 23*2c2f96dcSApple OSS Distributions<dd> 24*2c2f96dcSApple OSS Distributions[in scalar] 25*2c2f96dcSApple OSS DistributionsThe type of information to be returned. Valid values are: 26*2c2f96dcSApple OSS Distributions<dl> 27*2c2f96dcSApple OSS Distributions<p> 28*2c2f96dcSApple OSS Distributions<dt> <strong>THREAD_BASIC_INFO</strong> 29*2c2f96dcSApple OSS Distributions<dd> 30*2c2f96dcSApple OSS DistributionsReturns basic information about the thread, such as the 31*2c2f96dcSApple OSS Distributionsthread's run state and suspend count. The returned structure is 32*2c2f96dcSApple OSS Distributions<strong>thread_basic_info</strong>. 33*2c2f96dcSApple OSS Distributions<p> 34*2c2f96dcSApple OSS Distributions<dt> <strong>THREAD_SCHED_FIFO_INFO</strong> 35*2c2f96dcSApple OSS Distributions<dd> 36*2c2f96dcSApple OSS DistributionsReturns FIFO scheduling policy information about the thread. 37*2c2f96dcSApple OSS DistributionsThe returned structure is <strong>policy_fifo_info</strong>. 38*2c2f96dcSApple OSS Distributions<p> 39*2c2f96dcSApple OSS Distributions<dt> <strong>THREAD_SCHED_RR_INFO</strong> 40*2c2f96dcSApple OSS Distributions<dd> 41*2c2f96dcSApple OSS DistributionsReturns round-robin scheduling policy information about the 42*2c2f96dcSApple OSS Distributionsthread. The returned structure is <strong>policy_rr_info</strong>. 43*2c2f96dcSApple OSS Distributions<p> 44*2c2f96dcSApple OSS Distributions<dt> <strong>THREAD_SCHED_TIMESHARE_INFO</strong> 45*2c2f96dcSApple OSS Distributions<dd> 46*2c2f96dcSApple OSS DistributionsReturns timeshare scheduling policy information about the 47*2c2f96dcSApple OSS Distributionsthread. The returned structure is <strong>policy_timeshare_info</strong>. 48*2c2f96dcSApple OSS Distributions</dl> 49*2c2f96dcSApple OSS Distributions<p> 50*2c2f96dcSApple OSS Distributions<dt> <var>thread_info</var> 51*2c2f96dcSApple OSS Distributions<dd> 52*2c2f96dcSApple OSS Distributions[out structure] 53*2c2f96dcSApple OSS DistributionsInformation about the specified thread. 54*2c2f96dcSApple OSS Distributions<p> 55*2c2f96dcSApple OSS Distributions<dt> <var>thread_info_count</var> 56*2c2f96dcSApple OSS Distributions<dd> 57*2c2f96dcSApple OSS Distributions[in/out scalar] 58*2c2f96dcSApple OSS DistributionsOn input, the maximum size of the buffer; on output, the 59*2c2f96dcSApple OSS Distributionssize returned (in natural-sized units). 60*2c2f96dcSApple OSS Distributions</dl> 61*2c2f96dcSApple OSS Distributions<h3>DESCRIPTION</h3> 62*2c2f96dcSApple OSS Distributions<p> 63*2c2f96dcSApple OSS DistributionsThe <strong>thread_info</strong> function returns an information structure 64*2c2f96dcSApple OSS Distributionsof type <var>flavor</var>. 65*2c2f96dcSApple OSS Distributions<h3>NOTES</h3> 66*2c2f96dcSApple OSS Distributions<p> 67*2c2f96dcSApple OSS DistributionsAt any given time, a thread has only one scheduling policy in 68*2c2f96dcSApple OSS Distributionseffect for it. Thus, 69*2c2f96dcSApple OSS Distributionsonly one of the scheduling information structures will be valid, 70*2c2f96dcSApple OSS Distributionsthat so indicated 71*2c2f96dcSApple OSS Distributionsby the policy value returned by <strong>THREAD_BASIC_INFO</strong>. 72*2c2f96dcSApple OSS Distributions<h3>RETURN VALUES</h3> 73*2c2f96dcSApple OSS Distributions<p> 74*2c2f96dcSApple OSS DistributionsOnly generic errors apply. 75*2c2f96dcSApple OSS Distributions<h3>RELATED INFORMATION</h3> 76*2c2f96dcSApple OSS Distributions<p> 77*2c2f96dcSApple OSS DistributionsFunctions: 78*2c2f96dcSApple OSS Distributions<a href="task_info.html"><strong>task_info</strong></a>, 79*2c2f96dcSApple OSS Distributions<a href="task_threads.html"><strong>task_threads</strong></a>, 80*2c2f96dcSApple OSS Distributions<a href="thread_get_state.html"><strong>thread_get_state</strong></a>, 81*2c2f96dcSApple OSS Distributions<a href="thread_set_special_port.html"><strong>thread_set_special_port</strong></a>, 82*2c2f96dcSApple OSS Distributions<a href="thread_set_state.html"><strong>thread_set_state</strong></a>. 83*2c2f96dcSApple OSS Distributions<p> 84*2c2f96dcSApple OSS DistributionsData Structures: 85*2c2f96dcSApple OSS Distributions<a href="thread_basic_info.html"><strong>thread_basic_info</strong></a>, 86*2c2f96dcSApple OSS Distributions<a href="policy_timeshare_info.html"><strong>policy_timeshare_info</strong></a>, 87*2c2f96dcSApple OSS Distributions<a href="policy_fifo_info.html"><strong>policy_fifo_info</strong></a>, 88*2c2f96dcSApple OSS Distributions<a href="policy_rr_info.html"><strong>policy_rr_info</strong></a>. 89