xnu-7195.101.1.tar.gz

[apple/xnu.git] / osfmk / man / thread_create.html

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-<h2>thread_create</h2>\r<hr>\r<p>\r<strong>Function</strong> - Create a thread within a task.\r<h3>SYNOPSIS</h3>\r<pre>\r<strong>kern_return_t   thread_create</strong>\r                <strong>(task_t</strong>                             <var>parent_task</var>,\r                 <strong>thread_act_t</strong>                      <var>child_thread</var><strong>);</strong>\r</pre>\r<h3>PARAMETERS</h3>\r<dl>\r<p>\r<dt> <var>parent_task</var> \r<dd>\r[in task send right]\rThe port for the task that is to contain the new \rthread.\r<p>\r<dt> <var>child_thread</var> \r<dd>\r[out thread send right]\rThe kernel-assigned name for the new thread.\r</dl>\r<h3>DESCRIPTION</h3>\r<p>\rThe <strong>thread_create</strong> function creates a new thread within\r<var>parent_task</var>.  The new thread has a suspend count of one and \rno processor state.\r<p>\rThe new thread holds a send right for its thread kernel port.\rA send right for the \rthread's kernel port is also returned to the calling task or\rthread in <var>child_thread</var>. \rThe new thread's exception ports are set to <strong>MACH_PORT_NULL</strong>.\r<h3>NOTES</h3>\r<p>\rTo get a new thread running, first use <strong>thread_set_state</strong>\rto set a processor state \rfor the thread.  Then, use <strong>thread_resume</strong> to schedule\rthe thread for execution. \rAlternately, use <strong>thread_create_running</strong>.\r<h3>RETURN VALUES</h3>\r<p>\rOnly generic errors apply.\r<h3>RELATED INFORMATION</h3>\r<p>\rFunctions:\r<a href="task_create.html"><strong>task_create</strong></a>,\r<a href="task_threads.html"><strong>task_threads</strong></a>,\r<a href="thread_get_special_port.html"><strong>thread_get_special_port</strong></a>,\r<a href="thread_get_state.html"><strong>thread_get_state</strong></a>,\r<a href="thread_resume.html"><strong>thread_resume</strong></a>,\r<a href="thread_set_special_port.html"><strong>thread_set_special_port</strong></a>,\r<a href="thread_set_state.html"><strong>thread_set_state</strong></a>,\r<a href="thread_suspend.html"><strong>thread_suspend</strong></a>,\r<a href="thread_terminate.html"><strong>thread_terminate</strong></a>,\r<a href="thread_create_running.html"><strong>thread_create_running</strong></a>.\r
\ No newline at end of file
+<h2>thread_create</h2>
+<hr>
+<p>
+<strong>Function</strong> - Create a thread within a task.
+<h3>SYNOPSIS</h3>
+<pre>
+<strong>kern_return_t   thread_create</strong>
+                <strong>(task_t</strong>                             <var>parent_task</var>,
+                 <strong>thread_act_t</strong>                      <var>child_thread</var><strong>);</strong>
+</pre>
+<h3>PARAMETERS</h3>
+<dl>
+<p>
+<dt> <var>parent_task</var> 
+<dd>
+[in task send right]
+The port for the task that is to contain the new 
+thread.
+<p>
+<dt> <var>child_thread</var> 
+<dd>
+[out thread send right]
+The kernel-assigned name for the new thread.
+</dl>
+<h3>DESCRIPTION</h3>
+<p>
+The <strong>thread_create</strong> function creates a new thread within
+<var>parent_task</var>.  The new thread has a suspend count of one and 
+no processor state.
+<p>
+The new thread holds a send right for its thread kernel port.
+A send right for the 
+thread's kernel port is also returned to the calling task or
+thread in <var>child_thread</var>. 
+The new thread's exception ports are set to <strong>MACH_PORT_NULL</strong>.
+<h3>NOTES</h3>
+<p>
+To get a new thread running, first use <strong>thread_set_state</strong>
+to set a processor state 
+for the thread.  Then, use <strong>thread_resume</strong> to schedule
+the thread for execution. 
+Alternately, use <strong>thread_create_running</strong>.
+<h3>RETURN VALUES</h3>
+<p>
+Only generic errors apply.
+<h3>RELATED INFORMATION</h3>
+<p>
+Functions:
+<a href="task_create.html"><strong>task_create</strong></a>,
+<a href="task_threads.html"><strong>task_threads</strong></a>,
+<a href="thread_get_special_port.html"><strong>thread_get_special_port</strong></a>,
+<a href="thread_get_state.html"><strong>thread_get_state</strong></a>,
+<a href="thread_resume.html"><strong>thread_resume</strong></a>,
+<a href="thread_set_special_port.html"><strong>thread_set_special_port</strong></a>,
+<a href="thread_set_state.html"><strong>thread_set_state</strong></a>,
+<a href="thread_suspend.html"><strong>thread_suspend</strong></a>,
+<a href="thread_terminate.html"><strong>thread_terminate</strong></a>,
+<a href="thread_create_running.html"><strong>thread_create_running</strong></a>.