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                    </dd>
                </dl>
            </dd>
            <dd><h5 class="H2TOC"><a href="c-basic4.html">2.4
                Intertask Communications</a></h5>
                <dl class="margin">
                    <dd><h5 class="H3TOC"><a
                        href="c-basic4.html#84918">2.4.1 Shared
                        Data Structures</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-basic4.html#84958">2.4.2 Mutual
                        Exclusion</a></h5>
                        <dl class="margin">
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#84960">Interrupt
                                Locks and Latency</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#84974">Preemptive
                                Locks and Latency</a></h5>
                            </dd>
                        </dl>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-basic4.html#84992">2.4.3
                        Semaphores</a></h5>
                        <dl class="margin">
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#85015">Semaphore
                                Control</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#85078">Binary
                                Semaphores</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#85252">Mutual-Exclusion
                                Semaphores</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#85413">Counting
                                Semaphores</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#85489">Special
                                Semaphore Options</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#85561">POSIX
                                Semaphores</a></h5>
                            </dd>
                        </dl>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-basic4.html#85816">2.4.4 Message
                        Queues</a></h5>
                        <dl class="margin">
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#85864">Wind
                                Message Queues</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#85958">POSIX
                                Message Queues</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#86192">Comparison
                                of POSIX and Wind Message Queues</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#86255">Displaying
                                Message Queue Attributes</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#86275">Servers
                                and Clients with Message Queues</a></h5>
                            </dd>
                        </dl>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-basic4.html#86337">2.4.5 Pipes</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-basic4.html#88476">2.4.6 Network
                        Intertask Communication</a></h5>
                        <dl class="margin">
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#86356">Sockets</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#86370">Remote
                                Procedure Calls (RPC)</a></h5>
                            </dd>
                        </dl>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-basic4.html#86380">2.4.7 Signals</a></h5>
                        <dl class="margin">
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#86388">Basic
                                Signal Routines</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#86502">POSIX
                                Queued Signals</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-basic4.html#86545">Signal
                                Configuration</a></h5>
                            </dd>
                        </dl>
                    </dd>
                </dl>
            </dd>
            <dd><h5 class="H2TOC"><a href="c-basic5.html">2.5
                Interrupt Service Code</a></h5>
                <dl class="margin">
                    <dd><h5 class="H3TOC"><a
                        href="c-basic5.html#86643">2.5.1
                        Connecting Application Code to Interrupts</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-basic5.html#86685">2.5.2
                        Interrupt Stack</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-basic5.html#86692">2.5.3 Special
                        Limitations of ISRs</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-basic5.html#86813">2.5.4
                        Exceptions at Interrupt Level</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-basic5.html#86817">2.5.5
                        Reserving High Interrupt Levels</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-basic5.html#86822">2.5.6
                        Additional Restrictions for ISRs at High
                        Interrupt Levels</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-basic5.html#86828">2.5.7
                        Interrupt-to-Task Communication</a></h5>
                    </dd>
                </dl>
            </dd>
            <dd><h5 class="H2TOC"><a href="c-basic6.html">2.6
                Watchdog Timers</a></h5>
            </dd>
            <dd><h5 class="H2TOC"><a href="c-basic7.html">2.7
                POSIX Clocks and Timers</a></h5>
            </dd>
            <dd><h5 class="H2TOC"><a href="c-basic8.html">2.8
                POSIX Memory-Locking Interface</a></h5>
            </dd>
        </dl>
    </dd>
    <dd><h5 class="H1chapTOC"><a href="c-iosys.html">3 <b>I/O
        System </b></a></h5>
        <dl class="margin">
            <dd><h5 class="H2TOC"><a href="c-iosys1.html">3.1
                Introduction</a></h5>
            </dd>
            <dd><h5 class="H2TOC"><a href="c-iosys2.html">3.2
                Files, Devices, and Drivers</a></h5>
                <dl class="margin">
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys2.html#83640">3.2.1 File
                        Names and the Default Device</a></h5>
                    </dd>
                </dl>
            </dd>
            <dd><h5 class="H2TOC"><a href="c-iosys3.html">3.3
                Basic I/O</a></h5>
                <dl class="margin">
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys3.html#83716">3.3.1 File
                        Descriptors</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys3.html#83720">3.3.2 Standard
                        Input, Standard Output, and Standard
                        Error</a></h5>
                        <dl class="margin">
                            <dd><h5 class="H4TOC"><a
                                href="c-iosys3.html#83727">Global
                                Redirection</a></h5>
                            </dd>
                            <dd><h5 class="H4TOC"><a
                                href="c-iosys3.html#83735">Task-Specific
                                Redirection</a></h5>
                            </dd>
                        </dl>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys3.html#83741">3.3.3 Open and
                        Close</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys3.html#83817">3.3.4 Create
                        and Remove</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys3.html#83828">3.3.5 Read and
                        Write</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys3.html#83840">3.3.6 File
                        Truncation</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys3.html#83847">3.3.7 I/O
                        Control</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys3.html#83860">3.3.8 Pending
                        on Multiple File Descriptors: The Select
                        Facility</a></h5>
                    </dd>
                </dl>
            </dd>
            <dd><h5 class="H2TOC"><a href="c-iosys4.html">3.4
                Buffered I/O: Stdio</a></h5>
                <dl class="margin">
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys4.html#84004">3.4.1 Using
                        Stdio</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys4.html#96589">3.4.2 Standard
                        Input, Standard Output, and Standard
                        Error</a></h5>
                    </dd>
                </dl>
            </dd>
            <dd><h5 class="H2TOC"><a href="c-iosys5.html">3.5
                Other Formatted I/O</a></h5>
                <dl class="margin">
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys5.html#84033">3.5.1 Special
                        Cases: printf(&nbsp;), sprintf(&nbsp;),
                        and sscanf(&nbsp;)</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys5.html#84043">3.5.2
                        Additional Routines: printErr(&nbsp;) and
                        fdprintf(&nbsp;)</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys5.html#84049">3.5.3 Message
                        Logging</a></h5>
                    </dd>
                </dl>
            </dd>
            <dd><h5 class="H2TOC"><a href="c-iosys6.html">3.6
                Asynchronous Input/Output</a></h5>
                <dl class="margin">
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys6.html#84061">3.6.1 The
                        POSIX AIO Routines</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys6.html#84241">3.6.2 AIO
                        Control Block</a></h5>
                    </dd>
                    <dd><h5 class="H3TOC"><a
                        href="c-iosys6.html#84259">3.6.3 Using
                        AIO</a></h5>
                        <dl class="margin">