Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/man/mach_port_set_seqno.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_port_set_seqno.man,v $ 29 .\" Revision 2.3 93/05/10 19:31:50 rvb 30 .\" updated 31 .\" [93/04/21 16:04:05 lli] 32 .\" 33 .\" Revision 2.2 91/12/11 08:43:23 jsb 34 .\" Created. 35 .\" [91/11/25 rpd] 36 .\" 37 .TH mach_port_set_seqno 2 1/13/87 38 .CM 4 39 .SH NAME 40 .nf 41 mach_port_set_seqno \- changes the sequence number of a port 42 .SH SYNOPSIS 43 .nf 44 .ft B 45 #include <mach.h> 46 47 kern_return_t 48 mach_port_set_seqno(task, name, seqno) 49 mach_port_t task; 50 mach_port_t name; 51 mach_port_seqno_t seqno; 52 .fi 53 .ft P 54 .SH ARGUMENTS 55 .TP 12 56 .B 57 task 58 The task owning the receive right. 59 .TP 12 60 .B 61 name 62 \fBtask\fR's name for the receive right. 63 .TP 12 64 .B 65 seqno 66 The sequence number for the next message received from the port. 67 .SH DESCRIPTION 68 \fBmach_port_set_seqno\fR changes a port's sequence number. 69 The specified \fBtask\fR must hold a receive right 70 (named \fBname\fR) for the port. 71 72 All sequence number values are valid. 73 The next message received from the port will be stamped 74 with the specified sequence number. 75 .SH DIAGNOSTICS 76 .TP 25 77 KERN_SUCCESS 78 The call succeeded. 79 .TP 25 80 KERN_INVALID_TASK 81 \fBtask\fR was invalid. 82 .TP 25 83 KERN_INVALID_NAME 84 \fBname\fR did not denote a right. 85 .TP 25 86 KERN_INVALID_RIGHT 87 \fBname\fR denoted a right, but not a receive right. 88 .PP 89 The \fBmach_port_set_seqno\fR call is actually an RPC to \fBtask\fR, 90 normally a send right for a task port, but potentially any send right. 91 In addition to the normal diagnostic 92 return codes from the call's server (normally the kernel), 93 the call may return \fBmach_msg(2)\fR return codes. 94 .SH SEE ALSO 95 mach_port_get_receive_status(2).
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