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2 .\" Mach Operating System
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27 .\" HISTORY
28 .\" $Log: mach_host_self.man,v $
29 .\" Revision 2.4 91/05/14 17:05:24 mrt
30 .\" Correcting copyright
31 .\"
32 .\" Revision 2.3 91/02/14 14:10:38 mrt
33 .\" Changed to new Mach copyright
34 .\" [91/02/12 18:10:45 mrt]
35 .\"
36 .\" Revision 2.2 90/08/07 18:35:29 rpd
37 .\" Created.
38 .\"
39 .TH mach_host_self 2 9/19/86
40 .CM 4
41 .SH NAME
42 .nf
43 mach_host_self \- return calling thread's host port
44 .SH SYNOPSIS
45 .nf
46 .ft B
47 #include <mach/mach_traps.h>
48
49 mach_port_t mach_host_self();
50 .fi
51 .ft P
52 .SH DESCRIPTION
53 The \fBmach_host_self\fR system call returns
54 the calling thread's host port.
55
56 \fBmach_host_self\fR has an effect equivalent to receiving
57 a send right for the host port. \fBmach_host_self\fR
58 returns the name of the send right. In particular,
59 successive calls will increase the calling task's
60 user-reference count for the send right.
61 .SH DIAGNOSTICS
62 .TP 25
63 MACH_PORT_NULL
64 A resource shortage prevented the reception of the send right.
65 .SH SEE ALSO
66 mach_task_self(2), mach_thread_self(2).
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