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1 | <h2>mach_port_get_set_status</h2> |
2 | <hr> | |
3 | <p> | |
4 | <strong>Function</strong> - Return the port right names contained in the target port set. | |
5 | <h3>SYNOPSIS</h3> | |
6 | <pre> | |
7 | <strong>kern_return_t mach_port_get_set_status</strong> | |
8 | <strong>(ipc_space_t</strong> <var>task</var>, | |
9 | <strong>mach_port_name_t</strong> <var>name</var>, | |
10 | <strong>mach_port_name_array_t</strong> <var>*members</var>, | |
11 | <strong>task</strong> <var>count</var><strong>);</strong> | |
12 | </pre> | |
13 | <h3>PARAMETERS</h3> | |
14 | <dl> | |
15 | <p> | |
16 | <dt> <var>task</var> | |
17 | <dd> | |
18 | [in task send right] | |
19 | The task holding the port set. | |
20 | <p> | |
21 | <dt> <var>name</var> | |
22 | <dd> | |
23 | [in scalar] | |
24 | The task's name for the port set. | |
25 | <p> | |
26 | <dt> <var>members</var> | |
27 | <dd> | |
28 | [out pointer to dynamic array of <var>mach_port_name_t</var>] | |
29 | The task's names | |
30 | for the port set's members. | |
31 | <p> | |
32 | <dt> <var>count</var> | |
33 | <dd> | |
34 | [out scalar] | |
35 | The number of member names returned. | |
36 | </dl> | |
37 | <h3>DESCRIPTION</h3> | |
38 | <p> | |
39 | The <strong>mach_port_get_set_status</strong> function returns the individual port | |
40 | right names for all port rights contained in the specified port set. | |
41 | The <var>members</var> parameter is an array that is automatically | |
42 | allocated when the reply message is received. Note that | |
43 | <strong>vm_deallocate</strong> should be used to free the array. | |
44 | <p> | |
45 | Note that this interface, unlike others such as <strong>task_threads</strong>, | |
46 | returns a collection of port right names, NOT a collection of port rights themselves. | |
47 | In other words, this function does not insert port rights into the caller's | |
48 | port right name space; consequently, a call to <strong>mach_port_get_set_status</strong> | |
49 | does not affect the reference count of each port right within the target port set. | |
50 | <h3>NOTES</h3> | |
51 | <p> | |
52 | This interface is machine word length specific because of the port name | |
53 | parameter and the returned port names. | |
54 | <h3>RETURN VALUES</h3> | |
55 | <dl> | |
56 | <p> | |
57 | <dt> <strong>KERN_INVALID_NAME</strong> | |
58 | <dd> | |
59 | <var>name</var> did not denote a right. | |
60 | <p> | |
61 | <dt> <strong>KERN_INVALID_RIGHT</strong> | |
62 | <dd> | |
63 | <var>name</var> denoted a right, but not a port set. | |
64 | </dl> | |
65 | <h3>RELATED INFORMATION</h3> | |
66 | <p> | |
67 | Functions: | |
68 | <a href="mach_port_insert_member.html"><strong>mach_port_insert_member</strong></a>, | |
69 | <a href="mach_port_extract_member.html"><strong>mach_port_extract_member</strong></a>, | |
70 | <a href="mach_port_move_member.html"><strong>mach_port_move_member</strong></a>, | |
71 | <a href="vm_deallocate.html"><strong>vm_deallocate</strong></a>. |