1*19c3b8c2SApple OSS Distributions<h2>default_pager_object_create</h2> 2*19c3b8c2SApple OSS Distributions<hr> 3*19c3b8c2SApple OSS Distributions<p> 4*19c3b8c2SApple OSS Distributions<strong>Server Interface</strong> - Initialize a non-persistent memory object suitable for sharing between tasks. 5*19c3b8c2SApple OSS Distributions<h3>SYNOPSIS</h3> 6*19c3b8c2SApple OSS Distributions<pre> 7*19c3b8c2SApple OSS Distributions<strong>kern_return_t default_pager_object_create</strong> 8*19c3b8c2SApple OSS Distributions <strong>(mach_port_t</strong> <var>pager</var>, 9*19c3b8c2SApple OSS Distributions <strong>memory_object_t</strong> <var>*memory_object</var>, 10*19c3b8c2SApple OSS Distributions <strong>vm_size_t</strong> <var>object_size</var><strong>);</strong> 11*19c3b8c2SApple OSS Distributions 12*19c3b8c2SApple OSS Distributions 13*19c3b8c2SApple OSS Distributions<strong>kern_return_t seqnos_default_pager_object_create</strong> 14*19c3b8c2SApple OSS Distributions <strong>(mach_port_t</strong> <var>pager</var>, 15*19c3b8c2SApple OSS Distributions <strong>mach_port_seqno_t</strong> <var>seqno</var>, 16*19c3b8c2SApple OSS Distributions <strong>memory_object_t</strong> <var>*memory_object</var>, 17*19c3b8c2SApple OSS Distributions <strong>vm_size_t</strong> <var>object_size</var><strong>);</strong> 18*19c3b8c2SApple OSS Distributions</pre> 19*19c3b8c2SApple OSS Distributions<h3>PARAMETERS</h3> 20*19c3b8c2SApple OSS Distributions<dl> 21*19c3b8c2SApple OSS Distributions<p> 22*19c3b8c2SApple OSS Distributions<dt> <var>pager</var> 23*19c3b8c2SApple OSS Distributions<dd> 24*19c3b8c2SApple OSS Distributions[in default-pager (receive) right] 25*19c3b8c2SApple OSS DistributionsThe default memory manager service 26*19c3b8c2SApple OSS Distributionsport. 27*19c3b8c2SApple OSS Distributions<p> 28*19c3b8c2SApple OSS Distributions<dt> <var>seqno</var> 29*19c3b8c2SApple OSS Distributions<dd> 30*19c3b8c2SApple OSS Distributions[in scalar] 31*19c3b8c2SApple OSS DistributionsThe sequence number of this message relative to the <var>pager</var> 32*19c3b8c2SApple OSS Distributionsport. 33*19c3b8c2SApple OSS Distributions<p> 34*19c3b8c2SApple OSS Distributions<dt> <var>memory_object</var> 35*19c3b8c2SApple OSS Distributions<dd> 36*19c3b8c2SApple OSS Distributions[out memory-object send right] 37*19c3b8c2SApple OSS DistributionsA memory object port (with full access) for the memory object. 38*19c3b8c2SApple OSS Distributions<p> 39*19c3b8c2SApple OSS Distributions<dt> <var>object_size</var> 40*19c3b8c2SApple OSS Distributions<dd> 41*19c3b8c2SApple OSS Distributions[in scalar] 42*19c3b8c2SApple OSS DistributionsThe maximum size for the memory object. 43*19c3b8c2SApple OSS Distributions</dl> 44*19c3b8c2SApple OSS Distributions<h3>DESCRIPTION</h3> 45*19c3b8c2SApple OSS Distributions<p> 46*19c3b8c2SApple OSS DistributionsA <strong>default_pager_object_create</strong> function is called as 47*19c3b8c2SApple OSS Distributionsthe result of a message 48*19c3b8c2SApple OSS Distributionsrequesting that the default memory manager create and return a (shared) memory 49*19c3b8c2SApple OSS Distributionsobject which is suitable for use with <strong>vm_map</strong>. This memory object has 50*19c3b8c2SApple OSS Distributionsthe same properties as does a memory object provided by 51*19c3b8c2SApple OSS Distributions<strong>vm_allocate</strong>: its initial 52*19c3b8c2SApple OSS Distributionscontents are zero and the backing contents are temporary in that they do not 53*19c3b8c2SApple OSS Distributionspersist after the memory object is destroyed. The memory object 54*19c3b8c2SApple OSS Distributionsis suitable for use 55*19c3b8c2SApple OSS Distributionsas non-permanent shared memory. The kernel does not make this call itself 56*19c3b8c2SApple OSS Distributions(which is why it can be a synchronous call); this request is only issued by 57*19c3b8c2SApple OSS Distributions(privileged) tasks holding the default memory manager port. 58*19c3b8c2SApple OSS DistributionsThis call should be 59*19c3b8c2SApple OSS Distributionscontrasted with the kernel's <strong>memory_object_create</strong> message, in which 60*19c3b8c2SApple OSS Distributionsthe memory cache object is already created and the identity of the abstract 61*19c3b8c2SApple OSS Distributionsmemory object is made known to the default manager. 62*19c3b8c2SApple OSS Distributions<h3>RETURN VALUES</h3> 63*19c3b8c2SApple OSS Distributions<p> 64*19c3b8c2SApple OSS DistributionsOnly generic errors apply. 65*19c3b8c2SApple OSS Distributions<h3>RELATED INFORMATION</h3> 66*19c3b8c2SApple OSS Distributions<p> 67*19c3b8c2SApple OSS DistributionsFunctions: 68*19c3b8c2SApple OSS Distributions<a href="vm_map.html"><strong>vm_map</strong></a>, 69*19c3b8c2SApple OSS Distributions<a href="HD_memory_manager.html"><strong>host_default_memory_manager</strong></a>, 70*19c3b8c2SApple OSS Distributions<a href="memory_object_create.html"><strong>memory_object_create</strong></a>, 71*19c3b8c2SApple OSS Distributions<a href="MO_default_server.html"><strong>memory_object_default_server</strong></a>, 72*19c3b8c2SApple OSS Distributions<a href="SMO_default_server.html"><strong>seqnos_memory_object_default_server</strong></a>. 73