164 lines
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164 lines
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>libctru: threads/thread-basic/source/main.c</title>
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<td id="projectalign" style="padding-left: 0.5em;">
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<div id="projectname">libctru
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 <span id="projectnumber">v2.4.1</span>
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/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
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<div class="header">
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<div class="title">threads/thread-basic/source/main.c</div> </div>
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</div><!--header-->
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<div class="contents">
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<div class="fragment"><div class="line"><span class="preprocessor">#include <string.h></span></div>
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<div class="line"><span class="preprocessor">#include <stdio.h></span></div>
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<div class="line"><span class="preprocessor">#include <<a class="code" href="3ds_8h.html">3ds.h</a>></span></div>
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<div class="line"> </div>
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<div class="line"><span class="preprocessor">#define NUMTHREADS 3</span></div>
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<div class="line"><span class="preprocessor">#define STACKSIZE (4 * 1024)</span></div>
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<div class="line"> </div>
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<div class="line"><span class="keyword">volatile</span> <span class="keywordtype">bool</span> runThreads = <span class="keyword">true</span>;</div>
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<div class="line"> </div>
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<div class="line"><span class="keywordtype">void</span> threadMain(<span class="keywordtype">void</span> *arg)</div>
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<div class="line">{</div>
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<div class="line"> <a class="code" href="types_8h.html#a3f7e2bcbb0b4c338f3c4f6c937cd4234">u64</a> sleepDuration = 1000000ULL * (<a name="a0"></a><a class="code" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a>)arg;</div>
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<div class="line"> <span class="keywordtype">int</span> i = 0;</div>
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<div class="line"> <span class="keywordflow">while</span> (runThreads)</div>
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<div class="line"> {</div>
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<div class="line"> printf(<span class="stringliteral">"thread%d says %d\n"</span>, (<span class="keywordtype">int</span>)arg, i++);</div>
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<div class="line"> <a name="a1"></a><a class="code" href="svc_8h.html#ae1fad9317c81076e1394a376ab27c720">svcSleepThread</a>(sleepDuration);</div>
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<div class="line"> }</div>
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<div class="line">}</div>
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<div class="line"> </div>
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<div class="line"><span class="keywordtype">int</span> main(<span class="keywordtype">int</span> argc, <span class="keywordtype">char</span>** argv)</div>
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<div class="line">{</div>
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<div class="line"> <a name="a2"></a><a class="code" href="gfx_8h.html#a236a005ae029247c8bfe4a4a649206fc">gfxInitDefault</a>();</div>
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<div class="line"> <a name="a3"></a><a class="code" href="console_8h.html#a8e014e84f81ff901ca62d7669a8c8de8">consoleInit</a>(<a name="a4"></a><a class="code" href="gfx_8h.html#a356112d87f5cf6bbba3ea3b6b010e09caf9d44178134d07cf9c5923200e14af09">GFX_TOP</a>, NULL);</div>
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<div class="line"> </div>
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<div class="line"> <a class="code" href="thread_8h.html#a32603732d12a56b392a691e42360b035">Thread</a> threads[NUMTHREADS];</div>
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<div class="line"> <span class="keywordtype">int</span> i;</div>
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<div class="line"> <a class="code" href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a> prio = 0;</div>
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<div class="line"> <a name="a5"></a><a class="code" href="svc_8h.html#a609c04e1cde0d5bd6a71acbed3ad7e54">svcGetThreadPriority</a>(&prio, <a name="a6"></a><a class="code" href="svc_8h.html#a848b6094dcf31bfb0fa5cc999348c2d4">CUR_THREAD_HANDLE</a>);</div>
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<div class="line"> printf(<span class="stringliteral">"Main thread prio: 0x%lx\n"</span>, prio);</div>
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<div class="line"> </div>
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<div class="line"> <span class="keywordflow">for</span> (i = 0; i < NUMTHREADS; i ++)</div>
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<div class="line"> {</div>
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<div class="line"> <span class="comment">// The priority of these child threads must be higher (aka the value is lower) than that</span></div>
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<div class="line"> <span class="comment">// of the main thread, otherwise there is thread starvation due to stdio being locked.</span></div>
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<div class="line"> threads[i] = <a name="a7"></a><a class="code" href="thread_8h.html#a38c873d8cb02de7f5eca848fe68183ee">threadCreate</a>(threadMain, (<span class="keywordtype">void</span>*)((i+1)*250), STACKSIZE, prio-1, -2, <span class="keyword">false</span>);</div>
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<div class="line"> printf(<span class="stringliteral">"created thread %d: %p\n"</span>, i, threads[i]);</div>
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<div class="line"> }</div>
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<div class="line"> </div>
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<div class="line"> <span class="comment">// Main loop</span></div>
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<div class="line"> <span class="keywordflow">while</span> (<a name="a8"></a><a class="code" href="apt_8h.html#a84808c36d9a8c389896ecf241c7f89cb">aptMainLoop</a>())</div>
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<div class="line"> {</div>
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<div class="line"> <a name="a9"></a><a class="code" href="gspgpu_8h.html#abf0a992835649b5fe90e95d8a58b8c45">gspWaitForVBlank</a>();</div>
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<div class="line"> <a name="a10"></a><a class="code" href="hid_8h.html#abbbf0e1f3a79a75e459e19f85a66bee6">hidScanInput</a>();</div>
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<div class="line"> </div>
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<div class="line"> <a class="code" href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a> kDown = <a name="a11"></a><a class="code" href="hid_8h.html#aa2cababf764bf0b4297dc2e2fffe2a76">hidKeysDown</a>();</div>
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<div class="line"> <span class="keywordflow">if</span> (kDown & <a name="a12"></a><a class="code" href="hid_8h.html#a531c35e38ede3ea4e5ba5afb24b29493a616a1f5c4ed36080ca954453084aea3b">KEY_START</a>)</div>
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<div class="line"> <span class="keywordflow">break</span>; <span class="comment">// break in order to return to hbmenu</span></div>
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<div class="line"> </div>
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<div class="line"> <span class="comment">// Flush and swap framebuffers</span></div>
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<div class="line"> <a name="a13"></a><a class="code" href="gfx_8h.html#aea1808bd74fe0c00f9794e455fc8499b">gfxFlushBuffers</a>();</div>
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<div class="line"> <a name="a14"></a><a class="code" href="gfx_8h.html#a0f338920111994110975dc0d1360bb1f">gfxSwapBuffers</a>();</div>
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<div class="line"> }</div>
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<div class="line"> </div>
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<div class="line"> <span class="comment">// tell threads to exit & wait for them to exit</span></div>
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<div class="line"> runThreads = <span class="keyword">false</span>;</div>
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<div class="line"> <span class="keywordflow">for</span> (i = 0; i < NUMTHREADS; i ++)</div>
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<div class="line"> {</div>
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<div class="line"> <a name="a15"></a><a class="code" href="thread_8h.html#a5d7a5a77d24710c19f866d02594553db">threadJoin</a>(threads[i], <a name="a16"></a><a class="code" href="types_8h.html#aaf73a88ad00da5c878558d6dc80b2f5c">U64_MAX</a>);</div>
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<div class="line"> <a name="a17"></a><a class="code" href="thread_8h.html#aed4c2f06cf2ae66583325bd96588fa27">threadFree</a>(threads[i]);</div>
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<div class="line"> }</div>
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<div class="line"> </div>
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<div class="line"> <a name="a18"></a><a class="code" href="gfx_8h.html#aa446ccfdfdd4c575e648956ae96f2a3b">gfxExit</a>();</div>
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<div class="line"> <span class="keywordflow">return</span> 0;</div>
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<div class="line">}</div>
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<div class="ttc" id="a3ds_8h_html"><div class="ttname"><a href="3ds_8h.html">3ds.h</a></div><div class="ttdoc">Central 3DS header.</div></div>
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<div class="ttc" id="aapt_8h_html_a84808c36d9a8c389896ecf241c7f89cb"><div class="ttname"><a href="apt_8h.html#a84808c36d9a8c389896ecf241c7f89cb">aptMainLoop</a></div><div class="ttdeci">bool aptMainLoop(void)</div><div class="ttdoc">Main function which handles sleep mode and HOME/power buttons - call this at the beginning of every f...</div></div>
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<div class="ttc" id="aconsole_8h_html_a8e014e84f81ff901ca62d7669a8c8de8"><div class="ttname"><a href="console_8h.html#a8e014e84f81ff901ca62d7669a8c8de8">consoleInit</a></div><div class="ttdeci">PrintConsole * consoleInit(gfxScreen_t screen, PrintConsole *console)</div><div class="ttdoc">Initialise the console.</div></div>
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<div class="ttc" id="agfx_8h_html_a0f338920111994110975dc0d1360bb1f"><div class="ttname"><a href="gfx_8h.html#a0f338920111994110975dc0d1360bb1f">gfxSwapBuffers</a></div><div class="ttdeci">void gfxSwapBuffers(void)</div><div class="ttdoc">Updates the configuration of both screens.</div></div>
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<div class="ttc" id="agfx_8h_html_a236a005ae029247c8bfe4a4a649206fc"><div class="ttname"><a href="gfx_8h.html#a236a005ae029247c8bfe4a4a649206fc">gfxInitDefault</a></div><div class="ttdeci">void gfxInitDefault(void)</div><div class="ttdoc">Initializes the LCD framebuffers with default parameters This is equivalent to calling:</div></div>
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<div class="ttc" id="agfx_8h_html_a356112d87f5cf6bbba3ea3b6b010e09caf9d44178134d07cf9c5923200e14af09"><div class="ttname"><a href="gfx_8h.html#a356112d87f5cf6bbba3ea3b6b010e09caf9d44178134d07cf9c5923200e14af09">GFX_TOP</a></div><div class="ttdeci">@ GFX_TOP</div><div class="ttdoc">Top screen.</div><div class="ttdef"><b>Definition:</b> gfx.h:26</div></div>
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<div class="ttc" id="agfx_8h_html_aa446ccfdfdd4c575e648956ae96f2a3b"><div class="ttname"><a href="gfx_8h.html#aa446ccfdfdd4c575e648956ae96f2a3b">gfxExit</a></div><div class="ttdeci">void gfxExit(void)</div><div class="ttdoc">Deinitializes and frees the LCD framebuffers.</div></div>
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<div class="ttc" id="agfx_8h_html_aea1808bd74fe0c00f9794e455fc8499b"><div class="ttname"><a href="gfx_8h.html#aea1808bd74fe0c00f9794e455fc8499b">gfxFlushBuffers</a></div><div class="ttdeci">void gfxFlushBuffers(void)</div><div class="ttdoc">Flushes the data cache for the current framebuffers.</div></div>
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<div class="ttc" id="agspgpu_8h_html_abf0a992835649b5fe90e95d8a58b8c45"><div class="ttname"><a href="gspgpu_8h.html#abf0a992835649b5fe90e95d8a58b8c45">gspWaitForVBlank</a></div><div class="ttdeci">#define gspWaitForVBlank()</div><div class="ttdoc">Waits for VBlank.</div><div class="ttdef"><b>Definition:</b> gspgpu.h:151</div></div>
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<div class="ttc" id="ahid_8h_html_a531c35e38ede3ea4e5ba5afb24b29493a616a1f5c4ed36080ca954453084aea3b"><div class="ttname"><a href="hid_8h.html#a531c35e38ede3ea4e5ba5afb24b29493a616a1f5c4ed36080ca954453084aea3b">KEY_START</a></div><div class="ttdeci">@ KEY_START</div><div class="ttdoc">Start.</div><div class="ttdef"><b>Definition:</b> hid.h:15</div></div>
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<div class="ttc" id="ahid_8h_html_aa2cababf764bf0b4297dc2e2fffe2a76"><div class="ttname"><a href="hid_8h.html#aa2cababf764bf0b4297dc2e2fffe2a76">hidKeysDown</a></div><div class="ttdeci">u32 hidKeysDown(void)</div><div class="ttdoc">Returns a bitmask of newly pressed buttons, this frame.</div></div>
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<div class="ttc" id="ahid_8h_html_abbbf0e1f3a79a75e459e19f85a66bee6"><div class="ttname"><a href="hid_8h.html#abbbf0e1f3a79a75e459e19f85a66bee6">hidScanInput</a></div><div class="ttdeci">void hidScanInput(void)</div><div class="ttdoc">Scans HID for input data.</div></div>
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<div class="ttc" id="asvc_8h_html_a609c04e1cde0d5bd6a71acbed3ad7e54"><div class="ttname"><a href="svc_8h.html#a609c04e1cde0d5bd6a71acbed3ad7e54">svcGetThreadPriority</a></div><div class="ttdeci">Result svcGetThreadPriority(s32 *out, Handle handle)</div><div class="ttdoc">Retrieves the priority of a thread.</div></div>
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<div class="ttc" id="asvc_8h_html_a848b6094dcf31bfb0fa5cc999348c2d4"><div class="ttname"><a href="svc_8h.html#a848b6094dcf31bfb0fa5cc999348c2d4">CUR_THREAD_HANDLE</a></div><div class="ttdeci">#define CUR_THREAD_HANDLE</div><div class="ttdoc">Pseudo handle for the current thread.</div><div class="ttdef"><b>Definition:</b> svc.h:133</div></div>
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<div class="ttc" id="asvc_8h_html_ae1fad9317c81076e1394a376ab27c720"><div class="ttname"><a href="svc_8h.html#ae1fad9317c81076e1394a376ab27c720">svcSleepThread</a></div><div class="ttdeci">void svcSleepThread(s64 ns)</div><div class="ttdoc">Puts the current thread to sleep.</div></div>
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<div class="ttc" id="athread_8h_html_a32603732d12a56b392a691e42360b035"><div class="ttname"><a href="thread_8h.html#a32603732d12a56b392a691e42360b035">Thread</a></div><div class="ttdeci">struct Thread_tag * Thread</div><div class="ttdoc">libctru thread handle type</div><div class="ttdef"><b>Definition:</b> thread.h:22</div></div>
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<div class="ttc" id="athread_8h_html_a38c873d8cb02de7f5eca848fe68183ee"><div class="ttname"><a href="thread_8h.html#a38c873d8cb02de7f5eca848fe68183ee">threadCreate</a></div><div class="ttdeci">Thread threadCreate(ThreadFunc entrypoint, void *arg, size_t stack_size, int prio, int core_id, bool detached)</div><div class="ttdoc">Creates a new libctru thread.</div></div>
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<div class="ttc" id="athread_8h_html_a5d7a5a77d24710c19f866d02594553db"><div class="ttname"><a href="thread_8h.html#a5d7a5a77d24710c19f866d02594553db">threadJoin</a></div><div class="ttdeci">Result threadJoin(Thread thread, u64 timeout_ns)</div><div class="ttdoc">Waits for a libctru thread to finish (or returns immediately if it is already finished).</div></div>
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<div class="ttc" id="athread_8h_html_aed4c2f06cf2ae66583325bd96588fa27"><div class="ttname"><a href="thread_8h.html#aed4c2f06cf2ae66583325bd96588fa27">threadFree</a></div><div class="ttdeci">void threadFree(Thread thread)</div><div class="ttdoc">Frees a finished libctru thread.</div></div>
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<div class="ttc" id="atypes_8h_html_a3f7e2bcbb0b4c338f3c4f6c937cd4234"><div class="ttname"><a href="types_8h.html#a3f7e2bcbb0b4c338f3c4f6c937cd4234">u64</a></div><div class="ttdeci">uint64_t u64</div><div class="ttdoc">64-bit unsigned integer</div><div class="ttdef"><b>Definition:</b> types.h:24</div></div>
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<div class="ttc" id="atypes_8h_html_aaf73a88ad00da5c878558d6dc80b2f5c"><div class="ttname"><a href="types_8h.html#aaf73a88ad00da5c878558d6dc80b2f5c">U64_MAX</a></div><div class="ttdeci">#define U64_MAX</div><div class="ttdoc">The maximum value of a u64.</div><div class="ttdef"><b>Definition:</b> types.h:12</div></div>
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<div class="ttc" id="atypes_8h_html_ae9b1af5c037e57a98884758875d3a7c4"><div class="ttname"><a href="types_8h.html#ae9b1af5c037e57a98884758875d3a7c4">s32</a></div><div class="ttdeci">int32_t s32</div><div class="ttdoc">32-bit signed integer</div><div class="ttdef"><b>Definition:</b> types.h:28</div></div>
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<div class="ttc" id="atypes_8h_html_afaa62991928fb9fb18ff0db62a040aba"><div class="ttname"><a href="types_8h.html#afaa62991928fb9fb18ff0db62a040aba">u32</a></div><div class="ttdeci">uint32_t u32</div><div class="ttdoc">32-bit unsigned integer</div><div class="ttdef"><b>Definition:</b> types.h:23</div></div>
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