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<div class="title">tasking.h File Reference</div> </div>
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<div class="textblock"><code>#include &lt;stdint.h&gt;</code><br />
<code>#include &lt;sys/types.h&gt;</code><br />
<code>#include &quot;<a class="el" href="rpc_8h_source.html">rpc.h</a>&quot;</code><br />
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structProcess.html">Process</a></td></tr>
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<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structThread.html">Thread</a></td></tr>
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Enumerations</h2></td></tr>
<tr class="memitem:a4b1b32c1fc744438f665f0f1932dd207"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#a4b1b32c1fc744438f665f0f1932dd207">thread_state</a> { <br />
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&#160;&#160;<a class="el" href="tasking_8h.html#a4b1b32c1fc744438f665f0f1932dd207acd01ee7d9777106ac78018c1a4c9d0c5">THREAD_WAITING_FOR_RPC</a>,
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Functions</h2></td></tr>
<tr class="memitem:ac90817d992a64d95d80e4505343ed13c"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#ac90817d992a64d95d80e4505343ed13c">tasking_create_task</a> (void *eip, void *address_space, char kmode, void *param1, void *param2, char isThread)</td></tr>
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<tr class="memitem:a47f424f3474f4298f1d6b65eeee5d0f6"><td class="memItemLeft" align="right" valign="top">char&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#a47f424f3474f4298f1d6b65eeee5d0f6">tasking_is_privleged</a> ()</td></tr>
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<tr class="memitem:a9555a59dc2340ce36ae1a84c984b3af0"><td class="memItemLeft" align="right" valign="top">pid_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#a9555a59dc2340ce36ae1a84c984b3af0">tasking_get_PID</a> ()</td></tr>
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<tr class="memitem:a347fac6db01ff796e5dc6d1fc44c2eef"><td class="memItemLeft" align="right" valign="top">int *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#a347fac6db01ff796e5dc6d1fc44c2eef">tasking_get_errno_address</a> ()</td></tr>
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<tr class="memitem:a8a911d2c94f4a15da6dbbf9fdccdda7e"><td class="memItemLeft" align="right" valign="top">pid_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#a8a911d2c94f4a15da6dbbf9fdccdda7e">tasking_new_thread</a> (void *start, pid_t pid, void *param)</td></tr>
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<tr class="memitem:acf62dd83316df4b63f4a93587c9b791e"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#acf62dd83316df4b63f4a93587c9b791e">tasking_exit</a> (int code)</td></tr>
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<tr class="memitem:a021c821360fc28b1a509b585f8d21769"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#a021c821360fc28b1a509b585f8d21769">tasking_block</a> (<a class="el" href="tasking_8h.html#a4b1b32c1fc744438f665f0f1932dd207">thread_state</a> newstate)</td></tr>
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<tr class="memitem:a8daf634972bbe78df522aade52c180bf"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#a8daf634972bbe78df522aade52c180bf">tasking_unblock</a> (pid_t pid, pid_t tid)</td></tr>
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<tr class="memitem:a78aa02f7e342d1a6f76fb2c692086f50"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#a78aa02f7e342d1a6f76fb2c692086f50">tasking_yield</a> ()</td></tr>
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<tr class="memitem:a85f3e86dc7ddee108196d0557e307f9a"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#a85f3e86dc7ddee108196d0557e307f9a">tasking_get_address_space</a> (pid_t pid)</td></tr>
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<tr class="memitem:a25a4a19651c904d1611592f57d255c13"><td class="memItemLeft" align="right" valign="top">pid_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#a25a4a19651c904d1611592f57d255c13">tasking_get_rpc_calling_thread</a> (pid_t *tid)</td></tr>
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<tr class="memitem:adb458c9afaae981717f509dd3fe27123"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#adb458c9afaae981717f509dd3fe27123">tasking_set_rpc_ret_buf</a> (void *buf)</td></tr>
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<tr class="memitem:a475df75594db94effc24fcbe1e726f3e"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#a475df75594db94effc24fcbe1e726f3e">tasking_get_rpc_ret_buf</a> ()</td></tr>
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<tr class="memitem:ad6ae5d8a6f880c32173f67ce8164f8f5"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#ad6ae5d8a6f880c32173f67ce8164f8f5">tasking_thread_exit</a> ()</td></tr>
<tr class="separator:ad6ae5d8a6f880c32173f67ce8164f8f5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:afc5aaab63d5bde8a7e35e57605ab4e1d"><td class="memItemLeft" align="right" valign="top">char&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#afc5aaab63d5bde8a7e35e57605ab4e1d">tasking_check_proc_exists</a> (pid_t pid)</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="var-members"></a>
Variables</h2></td></tr>
<tr class="memitem:aac59f73081d1aff0293b54c543b552ca"><td class="memItemLeft" align="right" valign="top"><a id="aac59f73081d1aff0293b54c543b552ca"></a>
<a class="el" href="structThread.html">Thread</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tasking_8h.html#aac59f73081d1aff0293b54c543b552ca">current_thread</a></td></tr>
<tr class="memdesc:aac59f73081d1aff0293b54c543b552ca"><td class="mdescLeft">&#160;</td><td class="mdescRight">Currently running thread. <br /></td></tr>
<tr class="separator:aac59f73081d1aff0293b54c543b552ca"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<h2 class="groupheader">Enumeration Type Documentation</h2>
<a id="a4b1b32c1fc744438f665f0f1932dd207"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4b1b32c1fc744438f665f0f1932dd207">&#9670;&nbsp;</a></span>thread_state</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">enum <a class="el" href="tasking_8h.html#a4b1b32c1fc744438f665f0f1932dd207">thread_state</a></td>
</tr>
</table>
</div><div class="memdoc">
<p>Represents the state of a thread </p>
<table class="fieldtable">
<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="a4b1b32c1fc744438f665f0f1932dd207aa5639ff4eff3f959406116db9e020c44"></a>THREAD_RUNNING&#160;</td><td class="fielddoc"><p>The state of a running thread. </p>
</td></tr>
<tr><td class="fieldname"><a id="a4b1b32c1fc744438f665f0f1932dd207adc6a307a71277ce8d642b5b916e05042"></a>THREAD_READY&#160;</td><td class="fielddoc"><p>The state of a ready to run thread. </p>
</td></tr>
<tr><td class="fieldname"><a id="a4b1b32c1fc744438f665f0f1932dd207ac9087b7375864c084808109e1e1af5bb"></a>THREAD_EXITED&#160;</td><td class="fielddoc"><p>The state of an exited thread. </p>
</td></tr>
<tr><td class="fieldname"><a id="a4b1b32c1fc744438f665f0f1932dd207a4aeda0a1e7e9882ce8b0310833fee46e"></a>THREAD_BLOCKED&#160;</td><td class="fielddoc"><p>The state of a generically blocked thread. </p>
</td></tr>
<tr><td class="fieldname"><a id="a4b1b32c1fc744438f665f0f1932dd207acd01ee7d9777106ac78018c1a4c9d0c5"></a>THREAD_WAITING_FOR_RPC&#160;</td><td class="fielddoc"><p>The state of a thread waiting for an RPC call to return. </p>
</td></tr>
<tr><td class="fieldname"><a id="a4b1b32c1fc744438f665f0f1932dd207aacdc779922a036c6e1bf65ddeea471b8"></a>THREAD_WAITING_FOR_RPC_INIT&#160;</td><td class="fielddoc"><p>The state of a thread waiting for a process to fully initilaize it's RPC functions. </p>
</td></tr>
</table>
</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a id="a021c821360fc28b1a509b585f8d21769"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a021c821360fc28b1a509b585f8d21769">&#9670;&nbsp;</a></span>tasking_block()</h2>
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<td class="memname">void tasking_block </td>
<td>(</td>
<td class="paramtype"><a class="el" href="tasking_8h.html#a4b1b32c1fc744438f665f0f1932dd207">thread_state</a>&#160;</td>
<td class="paramname"><em>newstate</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Block the current thread &amp; yield </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">newstate</td><td>The state to block it in </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="afc5aaab63d5bde8a7e35e57605ab4e1d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#afc5aaab63d5bde8a7e35e57605ab4e1d">&#9670;&nbsp;</a></span>tasking_check_proc_exists()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">char tasking_check_proc_exists </td>
<td>(</td>
<td class="paramtype">pid_t&#160;</td>
<td class="paramname"><em>pid</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Check if a process exists </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pid</td><td>The param of the process to check </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Whether the process exists </dd></dl>
</div>
</div>
<a id="ac90817d992a64d95d80e4505343ed13c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac90817d992a64d95d80e4505343ed13c">&#9670;&nbsp;</a></span>tasking_create_task()</h2>
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<tr>
<td class="memname">void tasking_create_task </td>
<td>(</td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>eip</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>address_space</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char&#160;</td>
<td class="paramname"><em>kmode</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>param1</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>param2</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char&#160;</td>
<td class="paramname"><em>isThread</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Create a task </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">eip</td><td>The start address of the task </td></tr>
<tr><td class="paramname">address_space</td><td>The address space of the task </td></tr>
<tr><td class="paramname">kmode</td><td>Whether the task is a kernel mode task </td></tr>
<tr><td class="paramname">param1</td><td>The thread's start function first parameter </td></tr>
<tr><td class="paramname">param2</td><td>The thread's start function second parameter </td></tr>
<tr><td class="paramname">isThread</td><td>Whether we are creating a new process or a thread in a process. If we are creating a theead, param2_arg becomes the PID for the newly created thread. </td></tr>
</table>
</dd>
</dl>
</div>
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<h2 class="memtitle"><span class="permalink"><a href="#acf62dd83316df4b63f4a93587c9b791e">&#9670;&nbsp;</a></span>tasking_exit()</h2>
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<td class="memname">void tasking_exit </td>
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<td class="paramtype">int&#160;</td>
<td class="paramname"><em>code</em></td><td>)</td>
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<p>Terminate the current thread If the main thread terminates, the whole process terminates. </p><dl class="section note"><dt>Note</dt><dd>Currently, calling tasking_exit from any thread terminates the whole process. </dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">code</td><td>The exit code of the thread </td></tr>
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</dd>
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<h2 class="memtitle"><span class="permalink"><a href="#a85f3e86dc7ddee108196d0557e307f9a">&#9670;&nbsp;</a></span>tasking_get_address_space()</h2>
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<td class="memname">void* tasking_get_address_space </td>
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<td class="paramtype">pid_t&#160;</td>
<td class="paramname"><em>pid</em></td><td>)</td>
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<p>Get the address_space of a process </p><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">pid</td><td>the PID of the process </td></tr>
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</dd>
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<dl class="section return"><dt>Returns</dt><dd>the address_space of the process </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a347fac6db01ff796e5dc6d1fc44c2eef">&#9670;&nbsp;</a></span>tasking_get_errno_address()</h2>
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<td class="memname">int* tasking_get_errno_address </td>
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<p>Get the adddress of errno for the current thread </p><dl class="section return"><dt>Returns</dt><dd>The address of errno </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a9555a59dc2340ce36ae1a84c984b3af0">&#9670;&nbsp;</a></span>tasking_get_PID()</h2>
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<td class="memname">pid_t tasking_get_PID </td>
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<p>Get the PID of the current thread. </p><dl class="section return"><dt>Returns</dt><dd>The current thread's PID </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a25a4a19651c904d1611592f57d255c13">&#9670;&nbsp;</a></span>tasking_get_rpc_calling_thread()</h2>
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<td class="memname">pid_t tasking_get_rpc_calling_thread </td>
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<td class="paramtype">pid_t *&#160;</td>
<td class="paramname"><em>tid</em></td><td>)</td>
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<p>Get the RPC calling thread for the current thread </p><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">tid</td><td>A pointer to a pid_t to store the return TID </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the return PID </dd></dl>
<dl class="section note"><dt>Note</dt><dd>This is only applicable for an RPC handler thread </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a475df75594db94effc24fcbe1e726f3e">&#9670;&nbsp;</a></span>tasking_get_rpc_ret_buf()</h2>
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<td class="memname">void* tasking_get_rpc_ret_buf </td>
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<p>Get the RPC return buffer for the current thread </p><dl class="section return"><dt>Returns</dt><dd>the return buffer </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a579bdf6585f7b466257320a1ad51429a">&#9670;&nbsp;</a></span>tasking_get_TID()</h2>
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<td class="memname">pid_t tasking_get_TID </td>
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<td class="paramname"></td><td>)</td>
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<p>Get the TID of the current thread. </p><dl class="section return"><dt>Returns</dt><dd>The current thread's TID </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a45f6d4112f15e33ba7a0e356f821d056">&#9670;&nbsp;</a></span>tasking_init()</h2>
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<td class="memname">void tasking_init </td>
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<p>Initialize tasking </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a47f424f3474f4298f1d6b65eeee5d0f6">&#9670;&nbsp;</a></span>tasking_is_privleged()</h2>
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<td class="memname">char tasking_is_privleged </td>
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<p>Check whether the current process is privleged </p><dl class="section return"><dt>Returns</dt><dd>whether the current process is privleged </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a8a911d2c94f4a15da6dbbf9fdccdda7e">&#9670;&nbsp;</a></span>tasking_new_thread()</h2>
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<td class="memname">pid_t tasking_new_thread </td>
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<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>start</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">pid_t&#160;</td>
<td class="paramname"><em>pid</em>, </td>
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<td class="paramtype">void *&#160;</td>
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<p>Create a new thread </p><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">start</td><td>The start address of the task </td></tr>
<tr><td class="paramname">pid</td><td>The PID that gets the new thread </td></tr>
<tr><td class="paramname">param</td><td>The thread's start function parameter </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the TID of the thread </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ad04e43c483d045987f614582a4203082">&#9670;&nbsp;</a></span>tasking_set_rpc_calling_thread()</h2>
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<td class="memname">void tasking_set_rpc_calling_thread </td>
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<td class="paramtype">pid_t&#160;</td>
<td class="paramname"><em>pid</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">pid_t&#160;</td>
<td class="paramname"><em>tid</em>&#160;</td>
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<td></td>
<td>)</td>
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<p>Set the RPC calling thread for an RPC handler thread to the current threasd </p><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">pid</td><td>The PID of the handler thread </td></tr>
<tr><td class="paramname">tid</td><td>The TID of the handler thread </td></tr>
</table>
</dd>
</dl>
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<h2 class="memtitle"><span class="permalink"><a href="#adb458c9afaae981717f509dd3fe27123">&#9670;&nbsp;</a></span>tasking_set_rpc_ret_buf()</h2>
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<td class="memname">void tasking_set_rpc_ret_buf </td>
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<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>buf</em></td><td>)</td>
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<p>Set the RPC return buffer for the calling thread </p><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">buf</td><td>The return buffer </td></tr>
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</dd>
</dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ad6ae5d8a6f880c32173f67ce8164f8f5">&#9670;&nbsp;</a></span>tasking_thread_exit()</h2>
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<td class="memname">void tasking_thread_exit </td>
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<p>Terminate the current thread </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a8daf634972bbe78df522aade52c180bf">&#9670;&nbsp;</a></span>tasking_unblock()</h2>
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<td class="memname">void tasking_unblock </td>
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<td class="paramtype">pid_t&#160;</td>
<td class="paramname"><em>pid</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">pid_t&#160;</td>
<td class="paramname"><em>tid</em>&#160;</td>
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<td></td>
<td>)</td>
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<p>Unblock a thread </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">pid</td><td>The PID that contains the thread to unblock </td></tr>
<tr><td class="paramname">tid</td><td>The TID in the process to unblock. </td></tr>
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</dd>
</dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a78aa02f7e342d1a6f76fb2c692086f50">&#9670;&nbsp;</a></span>tasking_yield()</h2>
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<td class="memname">void tasking_yield </td>
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<p>Yield to the next ready thread in any process </p>
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