4.115
Last change
on this file since e630235 was
9c103a5,
checked in by Joel Sherrill <joel.sherrill@…>, on 09/19/03 at 18:04:14
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2003-09-19 Joel Sherrill <joel@…>
- ch07.t, posix1003_1.texi, preface.texi: Merge from branch.
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1 | @c |
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2 | @c COPYRIGHT (c) 1988-2002. |
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3 | @c On-Line Applications Research Corporation (OAR). |
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4 | @c All rights reserved. |
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5 | @c |
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6 | @c $Id$ |
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7 | @c |
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8 | |
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9 | @ifnottex |
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10 | @node Preface, General, Top, Top |
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11 | @end ifnottex |
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12 | |
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13 | @unnumbered Preface |
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14 | |
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15 | This document lists the functions, constant, macros, feature flags, |
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16 | and types defined in the POSIX 1003.1 standard. Each section in |
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17 | this document corresponds to a section in the 1003.1 standard |
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18 | and the implementation status of the items required by the standard |
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19 | are listed. |
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20 | |
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21 | RTEMS supports a number of POSIX process, user, and group oriented |
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22 | routines in what is referred to as a "SUSP" (Single-User, Single |
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23 | Process) manner. RTEMS supports a single process, multithreaded |
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24 | POSIX 1003.1b environment. In a pure world, there would be |
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25 | no reason to even include routines like @code{getpid()} when there |
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26 | can only be one process. But providing routines like @code{getpid()} |
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27 | and making them work in a sensible fashion for an embedded environment |
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28 | while not returning ENOSYS (for not implemented) makes it significantly |
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29 | easier to port code from a UNIX environment without modifying it. |
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