1*2c2f96dcSApple OSS Distributions<h2>lock_set_create</h2> 2*2c2f96dcSApple OSS Distributions<hr> 3*2c2f96dcSApple OSS Distributions<p> 4*2c2f96dcSApple OSS Distributions<strong>Function</strong> - Create a new lock set. 5*2c2f96dcSApple OSS Distributions<h3>SYNOPSIS</h3> 6*2c2f96dcSApple OSS Distributions<pre> 7*2c2f96dcSApple OSS Distributions<strong>kern_return_t lock_set_create</strong> 8*2c2f96dcSApple OSS Distributions <strong>(task_t</strong> <var>task</var>, 9*2c2f96dcSApple OSS Distributions <strong>lock_set_t</strong> <var>lock_set</var>, 10*2c2f96dcSApple OSS Distributions <strong>int</strong> <var>locks</var>, 11*2c2f96dcSApple OSS Distributions <strong>int</strong> <var>policy</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>task</var> 17*2c2f96dcSApple OSS Distributions<dd> 18*2c2f96dcSApple OSS DistributionsThe task receiving the send right to the newly created lock set. 19*2c2f96dcSApple OSS Distributions<p> 20*2c2f96dcSApple OSS Distributions<dt> <var>lock_set</var> 21*2c2f96dcSApple OSS Distributions<dd> 22*2c2f96dcSApple OSS Distributions[out send right] The port naming the lock set which represents the lock. 23*2c2f96dcSApple OSS Distributions<p> 24*2c2f96dcSApple OSS Distributions<dt> <var>locks</var> 25*2c2f96dcSApple OSS Distributions<dd> 26*2c2f96dcSApple OSS Distributions[in scalar] The number of locks the lock set will represent (must be a positive value). 27*2c2f96dcSApple OSS Distributions<p> 28*2c2f96dcSApple OSS Distributions<dt> <var>policy</var> 29*2c2f96dcSApple OSS Distributions<dd> 30*2c2f96dcSApple OSS Distributions[in scalar] The blocked thread wakeup policy for the newly created lock set. Valid policies are: 31*2c2f96dcSApple OSS Distributions <dl> 32*2c2f96dcSApple OSS Distributions<p> 33*2c2f96dcSApple OSS Distributions<dt> SYNC_POLICY_FIFO 34*2c2f96dcSApple OSS Distributions<dd> 35*2c2f96dcSApple OSS Distributionsa first-in-first-out policy for scheduling thread wakeup. 36*2c2f96dcSApple OSS Distributions<p> 37*2c2f96dcSApple OSS Distributions<dt> SYNC_POLICY_FIXED_PRIORITY 38*2c2f96dcSApple OSS Distributions<dd> 39*2c2f96dcSApple OSS Distributionsa fixed priority policy for scheduling thread wakeup. 40*2c2f96dcSApple OSS Distributions</dl> 41*2c2f96dcSApple OSS Distributions</dl> 42*2c2f96dcSApple OSS Distributions<h3>DESCRIPTION</h3> 43*2c2f96dcSApple OSS Distributions<p> 44*2c2f96dcSApple OSS DistributionsThe <strong>lock_set_create</strong> function creates a new lock set representing a 45*2c2f96dcSApple OSS Distributionscollection of associated locks. The lock set is associated with the 46*2c2f96dcSApple OSS Distributionsspecified task. A send right naming the lock set is returned to the 47*2c2f96dcSApple OSS Distributionscaller. 48*2c2f96dcSApple OSS Distributions<h3>RETURN VALUES</h3> 49*2c2f96dcSApple OSS Distributions<dl> 50*2c2f96dcSApple OSS Distributions<p> 51*2c2f96dcSApple OSS Distributions<dt> <strong>KERN_SUCCESS</strong> 52*2c2f96dcSApple OSS Distributions<dd> 53*2c2f96dcSApple OSS DistributionsThe lock set was created. 54*2c2f96dcSApple OSS Distributions<p> 55*2c2f96dcSApple OSS Distributions<dt> <strong>KERN_INVALID_ARGUMENT</strong> 56*2c2f96dcSApple OSS Distributions<dd> 57*2c2f96dcSApple OSS DistributionsEither the task or policy argument is invalid, or the locks argument 58*2c2f96dcSApple OSS Distributionshas a value that is less than or equal to zero. 59*2c2f96dcSApple OSS Distributions<p> 60*2c2f96dcSApple OSS Distributions<dt> <strong>KERN_RESOURCE_SHORTAGE</strong> 61*2c2f96dcSApple OSS Distributions<dd> 62*2c2f96dcSApple OSS DistributionsThe kernel could not allocate the lock set. 63*2c2f96dcSApple OSS Distributions</dl> 64*2c2f96dcSApple OSS Distributions<h3>RELATED INFORMATION</h3> 65*2c2f96dcSApple OSS Distributions<p> 66*2c2f96dcSApple OSS DistributionsFunctions: 67*2c2f96dcSApple OSS Distributions<a href="lock_acquire.html"><strong>lock_acquire</strong></a>, 68*2c2f96dcSApple OSS Distributions<a href="lock_make_stable.html"><strong>lock_make_stable</strong></a>, 69*2c2f96dcSApple OSS Distributions<a href="lock_try.html"><strong>lock_try</strong></a>, 70*2c2f96dcSApple OSS Distributions<a href="lock_handoff.html"><strong>lock_handoff</strong></a>, 71*2c2f96dcSApple OSS Distributions<a href="lock_handoff_accept.html"><strong>lock_handoff_accept</strong></a>, 72*2c2f96dcSApple OSS Distributions<a href="lock_try.html"><strong>lock_try</strong></a>, 73*2c2f96dcSApple OSS Distributions<a href="lock_set_destroy.html"><strong>lock_set_destroy</strong></a>. 74