The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/man/mach_thread_self.man

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    1 .\" 
    2 .\" Mach Operating System
    3 .\" Copyright (c) 1991,1990 Carnegie Mellon University
    4 .\" All Rights Reserved.
    5 .\" 
    6 .\" Permission to use, copy, modify and distribute this software and its
    7 .\" documentation is hereby granted, provided that both the copyright
    8 .\" notice and this permission notice appear in all copies of the
    9 .\" software, derivative works or modified versions, and any portions
   10 .\" thereof, and that both notices appear in supporting documentation.
   11 .\" 
   12 .\" CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
   13 .\" CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
   14 .\" ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   15 .\" 
   16 .\" Carnegie Mellon requests users of this software to return to
   17 .\" 
   18 .\"  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   19 .\"  School of Computer Science
   20 .\"  Carnegie Mellon University
   21 .\"  Pittsburgh PA 15213-3890
   22 .\" 
   23 .\" any improvements or extensions that they make and grant Carnegie Mellon
   24 .\" the rights to redistribute these changes.
   25 .\" 
   26 .\" 
   27 .\" HISTORY
   28 .\" $Log:       mach_thread_self.man,v $
   29 .\" Revision 2.4  91/05/14  17:08:21  mrt
   30 .\"     Correcting copyright
   31 .\" 
   32 .\" Revision 2.3  91/02/14  14:12:25  mrt
   33 .\"     Changed to new Mach copyright
   34 .\"     [91/02/12  18:12:46  mrt]
   35 .\" 
   36 .\" Revision 2.2  90/08/07  18:39:09  rpd
   37 .\"     Created.
   38 .\" 
   39 .TH mach_thread_self 2 9/19/86
   40 .CM 4
   41 .SH NAME
   42 .nf
   43 mach_thread_self \- return calling thread's thread port
   44 .SH SYNOPSIS
   45 .nf
   46 .ft B
   47 #include <mach/mach_traps.h>
   48 
   49 mach_port_t mach_thread_self();
   50 .fi
   51 .ft P
   52 .SH DESCRIPTION
   53 The \fBmach_thread_self\fR system call returns
   54 the calling thread's thread port.
   55 
   56 \fBmach_thread_self\fR has an effect equivalent to receiving
   57 a send right for the thread port.  \fBmach_thread_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 .TP 25
   66 MACH_PORT_NULL
   67 The thread port is currently null.
   68 .TP 25
   69 MACH_PORT_DEAD
   70 The thread port is currently dead.
   71 .SH SEE ALSO
   72 mach_task_self(2), thread_special_ports(2).

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