1<h2>io_done_queue_create</h2> 2<hr> 3<p> 4<strong>Function</strong> - Create an <strong>io_done_queue</strong> kernel object. 5<h3>SYNOPSIS</h3> 6<pre> 7<strong>kern_return_t io_done_queue_create</strong> 8 <strong>(mach_port_t</strong> <var>host</var>, 9 <strong>mach_port_t</strong> <var>queue</var><strong>);</strong> 10</pre> 11<h3>PARAMETERS</h3> 12<dl> 13<p> 14<dt> <var>host</var> 15<dd> 16[in host-name send right] The name (or control) port for the host on 17which the io_done_queue should be created. 18<p> 19<dt> <var>queue</var> 20<dd> 21[out io-done-queue send right] The port referencing the created 22io_done_queue. 23</dl> 24<h3>DESCRIPTION</h3> 25<p> 26The io_done_queue_create function is called to create a new 27instatiation of the kernel object supporting asynchronous read/write 28operations on a device. 29<h3>RETURN VALUES</h3> 30<dl> 31<dt> <strong>KERN_INVALID_ARGUMENT</strong> 32<dd> 33 Invalid <var>host</var> parameter. 34 <p> 35 <dt> <strong>KERN_RESOURCE_SHORTAGE</strong> 36<dd> 37 Insufficient kernel resources to allocate kernel object. 38</dl> 39<h3>RELATED INFORMATION</h3> 40<p> 41Functions: 42<a href="io_done_queue_terminate.html"><strong>io_done_queue_terminate</strong></a>, 43<a href="io_done_queue_wait.html"><strong>io_done_queue_wait</strong></a>, 44<a href="device_read_async.html"><strong>device_read_async</strong></a>, 45<a href="device_read_async_inband.html"><strong>device_read_async_inband</strong></a>, 46<a href="DR_overwrite_async.html"><strong>device_read_overwrite_async</strong></a>, 47<a href="device_write_async.html"><strong>device_write_async</strong></a>, 48<a href="device_write_async_inband.html"><strong>device_write_async_inband</strong></a>. 49