1*33de042dSApple OSS Distributions<h2>lock_set_create</h2> 2*33de042dSApple OSS Distributions<hr> 3*33de042dSApple OSS Distributions<p> 4*33de042dSApple OSS Distributions<strong>Function</strong> - Create a new lock set. 5*33de042dSApple OSS Distributions<h3>SYNOPSIS</h3> 6*33de042dSApple OSS Distributions<pre> 7*33de042dSApple OSS Distributions<strong>kern_return_t lock_set_create</strong> 8*33de042dSApple OSS Distributions <strong>(task_t</strong> <var>task</var>, 9*33de042dSApple OSS Distributions <strong>lock_set_t</strong> <var>lock_set</var>, 10*33de042dSApple OSS Distributions <strong>int</strong> <var>locks</var>, 11*33de042dSApple OSS Distributions <strong>int</strong> <var>policy</var><strong>);</strong> 12*33de042dSApple OSS Distributions</pre> 13*33de042dSApple OSS Distributions<h3>PARAMETERS</h3> 14*33de042dSApple OSS Distributions<dl> 15*33de042dSApple OSS Distributions<p> 16*33de042dSApple OSS Distributions<dt> <var>task</var> 17*33de042dSApple OSS Distributions<dd> 18*33de042dSApple OSS DistributionsThe task receiving the send right to the newly created lock set. 19*33de042dSApple OSS Distributions<p> 20*33de042dSApple OSS Distributions<dt> <var>lock_set</var> 21*33de042dSApple OSS Distributions<dd> 22*33de042dSApple OSS Distributions[out send right] The port naming the lock set which represents the lock. 23*33de042dSApple OSS Distributions<p> 24*33de042dSApple OSS Distributions<dt> <var>locks</var> 25*33de042dSApple OSS Distributions<dd> 26*33de042dSApple OSS Distributions[in scalar] The number of locks the lock set will represent (must be a positive value). 27*33de042dSApple OSS Distributions<p> 28*33de042dSApple OSS Distributions<dt> <var>policy</var> 29*33de042dSApple OSS Distributions<dd> 30*33de042dSApple OSS Distributions[in scalar] The blocked thread wakeup policy for the newly created lock set. Valid policies are: 31*33de042dSApple OSS Distributions <dl> 32*33de042dSApple OSS Distributions<p> 33*33de042dSApple OSS Distributions<dt> SYNC_POLICY_FIFO 34*33de042dSApple OSS Distributions<dd> 35*33de042dSApple OSS Distributionsa first-in-first-out policy for scheduling thread wakeup. 36*33de042dSApple OSS Distributions<p> 37*33de042dSApple OSS Distributions<dt> SYNC_POLICY_FIXED_PRIORITY 38*33de042dSApple OSS Distributions<dd> 39*33de042dSApple OSS Distributionsa fixed priority policy for scheduling thread wakeup. 40*33de042dSApple OSS Distributions</dl> 41*33de042dSApple OSS Distributions</dl> 42*33de042dSApple OSS Distributions<h3>DESCRIPTION</h3> 43*33de042dSApple OSS Distributions<p> 44*33de042dSApple OSS DistributionsThe <strong>lock_set_create</strong> function creates a new lock set representing a 45*33de042dSApple OSS Distributionscollection of associated locks. The lock set is associated with the 46*33de042dSApple OSS Distributionsspecified task. A send right naming the lock set is returned to the 47*33de042dSApple OSS Distributionscaller. 48*33de042dSApple OSS Distributions<h3>RETURN VALUES</h3> 49*33de042dSApple OSS Distributions<dl> 50*33de042dSApple OSS Distributions<p> 51*33de042dSApple OSS Distributions<dt> <strong>KERN_SUCCESS</strong> 52*33de042dSApple OSS Distributions<dd> 53*33de042dSApple OSS DistributionsThe lock set was created. 54*33de042dSApple OSS Distributions<p> 55*33de042dSApple OSS Distributions<dt> <strong>KERN_INVALID_ARGUMENT</strong> 56*33de042dSApple OSS Distributions<dd> 57*33de042dSApple OSS DistributionsEither the task or policy argument is invalid, or the locks argument 58*33de042dSApple OSS Distributionshas a value that is less than or equal to zero. 59*33de042dSApple OSS Distributions<p> 60*33de042dSApple OSS Distributions<dt> <strong>KERN_RESOURCE_SHORTAGE</strong> 61*33de042dSApple OSS Distributions<dd> 62*33de042dSApple OSS DistributionsThe kernel could not allocate the lock set. 63*33de042dSApple OSS Distributions</dl> 64*33de042dSApple OSS Distributions<h3>RELATED INFORMATION</h3> 65*33de042dSApple OSS Distributions<p> 66*33de042dSApple OSS DistributionsFunctions: 67*33de042dSApple OSS Distributions<a href="lock_acquire.html"><strong>lock_acquire</strong></a>, 68*33de042dSApple OSS Distributions<a href="lock_make_stable.html"><strong>lock_make_stable</strong></a>, 69*33de042dSApple OSS Distributions<a href="lock_try.html"><strong>lock_try</strong></a>, 70*33de042dSApple OSS Distributions<a href="lock_handoff.html"><strong>lock_handoff</strong></a>, 71*33de042dSApple OSS Distributions<a href="lock_handoff_accept.html"><strong>lock_handoff_accept</strong></a>, 72*33de042dSApple OSS Distributions<a href="lock_try.html"><strong>lock_try</strong></a>, 73*33de042dSApple OSS Distributions<a href="lock_set_destroy.html"><strong>lock_set_destroy</strong></a>. 74