1*e13b1fa5SApple OSS Distributions<h2>lock_set_create</h2> 2*e13b1fa5SApple OSS Distributions<hr> 3*e13b1fa5SApple OSS Distributions<p> 4*e13b1fa5SApple OSS Distributions<strong>Function</strong> - Create a new lock set. 5*e13b1fa5SApple OSS Distributions<h3>SYNOPSIS</h3> 6*e13b1fa5SApple OSS Distributions<pre> 7*e13b1fa5SApple OSS Distributions<strong>kern_return_t lock_set_create</strong> 8*e13b1fa5SApple OSS Distributions <strong>(task_t</strong> <var>task</var>, 9*e13b1fa5SApple OSS Distributions <strong>lock_set_t</strong> <var>lock_set</var>, 10*e13b1fa5SApple OSS Distributions <strong>int</strong> <var>locks</var>, 11*e13b1fa5SApple OSS Distributions <strong>int</strong> <var>policy</var><strong>);</strong> 12*e13b1fa5SApple OSS Distributions</pre> 13*e13b1fa5SApple OSS Distributions<h3>PARAMETERS</h3> 14*e13b1fa5SApple OSS Distributions<dl> 15*e13b1fa5SApple OSS Distributions<p> 16*e13b1fa5SApple OSS Distributions<dt> <var>task</var> 17*e13b1fa5SApple OSS Distributions<dd> 18*e13b1fa5SApple OSS DistributionsThe task receiving the send right to the newly created lock set. 19*e13b1fa5SApple OSS Distributions<p> 20*e13b1fa5SApple OSS Distributions<dt> <var>lock_set</var> 21*e13b1fa5SApple OSS Distributions<dd> 22*e13b1fa5SApple OSS Distributions[out send right] The port naming the lock set which represents the lock. 23*e13b1fa5SApple OSS Distributions<p> 24*e13b1fa5SApple OSS Distributions<dt> <var>locks</var> 25*e13b1fa5SApple OSS Distributions<dd> 26*e13b1fa5SApple OSS Distributions[in scalar] The number of locks the lock set will represent (must be a positive value). 27*e13b1fa5SApple OSS Distributions<p> 28*e13b1fa5SApple OSS Distributions<dt> <var>policy</var> 29*e13b1fa5SApple OSS Distributions<dd> 30*e13b1fa5SApple OSS Distributions[in scalar] The blocked thread wakeup policy for the newly created lock set. Valid policies are: 31*e13b1fa5SApple OSS Distributions <dl> 32*e13b1fa5SApple OSS Distributions<p> 33*e13b1fa5SApple OSS Distributions<dt> SYNC_POLICY_FIFO 34*e13b1fa5SApple OSS Distributions<dd> 35*e13b1fa5SApple OSS Distributionsa first-in-first-out policy for scheduling thread wakeup. 36*e13b1fa5SApple OSS Distributions<p> 37*e13b1fa5SApple OSS Distributions<dt> SYNC_POLICY_FIXED_PRIORITY 38*e13b1fa5SApple OSS Distributions<dd> 39*e13b1fa5SApple OSS Distributionsa fixed priority policy for scheduling thread wakeup. 40*e13b1fa5SApple OSS Distributions</dl> 41*e13b1fa5SApple OSS Distributions</dl> 42*e13b1fa5SApple OSS Distributions<h3>DESCRIPTION</h3> 43*e13b1fa5SApple OSS Distributions<p> 44*e13b1fa5SApple OSS DistributionsThe <strong>lock_set_create</strong> function creates a new lock set representing a 45*e13b1fa5SApple OSS Distributionscollection of associated locks. The lock set is associated with the 46*e13b1fa5SApple OSS Distributionsspecified task. A send right naming the lock set is returned to the 47*e13b1fa5SApple OSS Distributionscaller. 48*e13b1fa5SApple OSS Distributions<h3>RETURN VALUES</h3> 49*e13b1fa5SApple OSS Distributions<dl> 50*e13b1fa5SApple OSS Distributions<p> 51*e13b1fa5SApple OSS Distributions<dt> <strong>KERN_SUCCESS</strong> 52*e13b1fa5SApple OSS Distributions<dd> 53*e13b1fa5SApple OSS DistributionsThe lock set was created. 54*e13b1fa5SApple OSS Distributions<p> 55*e13b1fa5SApple OSS Distributions<dt> <strong>KERN_INVALID_ARGUMENT</strong> 56*e13b1fa5SApple OSS Distributions<dd> 57*e13b1fa5SApple OSS DistributionsEither the task or policy argument is invalid, or the locks argument 58*e13b1fa5SApple OSS Distributionshas a value that is less than or equal to zero. 59*e13b1fa5SApple OSS Distributions<p> 60*e13b1fa5SApple OSS Distributions<dt> <strong>KERN_RESOURCE_SHORTAGE</strong> 61*e13b1fa5SApple OSS Distributions<dd> 62*e13b1fa5SApple OSS DistributionsThe kernel could not allocate the lock set. 63*e13b1fa5SApple OSS Distributions</dl> 64*e13b1fa5SApple OSS Distributions<h3>RELATED INFORMATION</h3> 65*e13b1fa5SApple OSS Distributions<p> 66*e13b1fa5SApple OSS DistributionsFunctions: 67*e13b1fa5SApple OSS Distributions<a href="lock_acquire.html"><strong>lock_acquire</strong></a>, 68*e13b1fa5SApple OSS Distributions<a href="lock_make_stable.html"><strong>lock_make_stable</strong></a>, 69*e13b1fa5SApple OSS Distributions<a href="lock_try.html"><strong>lock_try</strong></a>, 70*e13b1fa5SApple OSS Distributions<a href="lock_handoff.html"><strong>lock_handoff</strong></a>, 71*e13b1fa5SApple OSS Distributions<a href="lock_handoff_accept.html"><strong>lock_handoff_accept</strong></a>, 72*e13b1fa5SApple OSS Distributions<a href="lock_try.html"><strong>lock_try</strong></a>, 73*e13b1fa5SApple OSS Distributions<a href="lock_set_destroy.html"><strong>lock_set_destroy</strong></a>. 74