1*0f4c859eSApple OSS Distributions<h2>lock_set_create</h2> 2*0f4c859eSApple OSS Distributions<hr> 3*0f4c859eSApple OSS Distributions<p> 4*0f4c859eSApple OSS Distributions<strong>Function</strong> - Create a new lock set. 5*0f4c859eSApple OSS Distributions<h3>SYNOPSIS</h3> 6*0f4c859eSApple OSS Distributions<pre> 7*0f4c859eSApple OSS Distributions<strong>kern_return_t lock_set_create</strong> 8*0f4c859eSApple OSS Distributions <strong>(task_t</strong> <var>task</var>, 9*0f4c859eSApple OSS Distributions <strong>lock_set_t</strong> <var>lock_set</var>, 10*0f4c859eSApple OSS Distributions <strong>int</strong> <var>locks</var>, 11*0f4c859eSApple OSS Distributions <strong>int</strong> <var>policy</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>task</var> 17*0f4c859eSApple OSS Distributions<dd> 18*0f4c859eSApple OSS DistributionsThe task receiving the send right to the newly created lock set. 19*0f4c859eSApple OSS Distributions<p> 20*0f4c859eSApple OSS Distributions<dt> <var>lock_set</var> 21*0f4c859eSApple OSS Distributions<dd> 22*0f4c859eSApple OSS Distributions[out send right] The port naming the lock set which represents the lock. 23*0f4c859eSApple OSS Distributions<p> 24*0f4c859eSApple OSS Distributions<dt> <var>locks</var> 25*0f4c859eSApple OSS Distributions<dd> 26*0f4c859eSApple OSS Distributions[in scalar] The number of locks the lock set will represent (must be a positive value). 27*0f4c859eSApple OSS Distributions<p> 28*0f4c859eSApple OSS Distributions<dt> <var>policy</var> 29*0f4c859eSApple OSS Distributions<dd> 30*0f4c859eSApple OSS Distributions[in scalar] The blocked thread wakeup policy for the newly created lock set. Valid policies are: 31*0f4c859eSApple OSS Distributions <dl> 32*0f4c859eSApple OSS Distributions<p> 33*0f4c859eSApple OSS Distributions<dt> SYNC_POLICY_FIFO 34*0f4c859eSApple OSS Distributions<dd> 35*0f4c859eSApple OSS Distributionsa first-in-first-out policy for scheduling thread wakeup. 36*0f4c859eSApple OSS Distributions<p> 37*0f4c859eSApple OSS Distributions<dt> SYNC_POLICY_FIXED_PRIORITY 38*0f4c859eSApple OSS Distributions<dd> 39*0f4c859eSApple OSS Distributionsa fixed priority policy for scheduling thread wakeup. 40*0f4c859eSApple OSS Distributions</dl> 41*0f4c859eSApple OSS Distributions</dl> 42*0f4c859eSApple OSS Distributions<h3>DESCRIPTION</h3> 43*0f4c859eSApple OSS Distributions<p> 44*0f4c859eSApple OSS DistributionsThe <strong>lock_set_create</strong> function creates a new lock set representing a 45*0f4c859eSApple OSS Distributionscollection of associated locks. The lock set is associated with the 46*0f4c859eSApple OSS Distributionsspecified task. A send right naming the lock set is returned to the 47*0f4c859eSApple OSS Distributionscaller. 48*0f4c859eSApple OSS Distributions<h3>RETURN VALUES</h3> 49*0f4c859eSApple OSS Distributions<dl> 50*0f4c859eSApple OSS Distributions<p> 51*0f4c859eSApple OSS Distributions<dt> <strong>KERN_SUCCESS</strong> 52*0f4c859eSApple OSS Distributions<dd> 53*0f4c859eSApple OSS DistributionsThe lock set was created. 54*0f4c859eSApple OSS Distributions<p> 55*0f4c859eSApple OSS Distributions<dt> <strong>KERN_INVALID_ARGUMENT</strong> 56*0f4c859eSApple OSS Distributions<dd> 57*0f4c859eSApple OSS DistributionsEither the task or policy argument is invalid, or the locks argument 58*0f4c859eSApple OSS Distributionshas a value that is less than or equal to zero. 59*0f4c859eSApple OSS Distributions<p> 60*0f4c859eSApple OSS Distributions<dt> <strong>KERN_RESOURCE_SHORTAGE</strong> 61*0f4c859eSApple OSS Distributions<dd> 62*0f4c859eSApple OSS DistributionsThe kernel could not allocate the lock set. 63*0f4c859eSApple OSS Distributions</dl> 64*0f4c859eSApple OSS Distributions<h3>RELATED INFORMATION</h3> 65*0f4c859eSApple OSS Distributions<p> 66*0f4c859eSApple OSS DistributionsFunctions: 67*0f4c859eSApple OSS Distributions<a href="lock_acquire.html"><strong>lock_acquire</strong></a>, 68*0f4c859eSApple OSS Distributions<a href="lock_make_stable.html"><strong>lock_make_stable</strong></a>, 69*0f4c859eSApple OSS Distributions<a href="lock_try.html"><strong>lock_try</strong></a>, 70*0f4c859eSApple OSS Distributions<a href="lock_handoff.html"><strong>lock_handoff</strong></a>, 71*0f4c859eSApple OSS Distributions<a href="lock_handoff_accept.html"><strong>lock_handoff_accept</strong></a>, 72*0f4c859eSApple OSS Distributions<a href="lock_try.html"><strong>lock_try</strong></a>, 73*0f4c859eSApple OSS Distributions<a href="lock_set_destroy.html"><strong>lock_set_destroy</strong></a>. 74