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https://github.com/Zeal-Operating-System/ZealOS.git
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66 lines
4.7 KiB
HTML
Executable file
66 lines
4.7 KiB
HTML
Executable file
<!DOCTYPE HTML>
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<html>
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<meta http-equiv="Content-Type" content="text/html;charset=US-ASCII">
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<meta name="generator" content="ZealOS V0.05">
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<style type="text/css">
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body {background-color:#000000;}
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.cF0{color:#ffffff;background-color:#000000;}
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</style>
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</head>
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<body>
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<pre style="font-family:courier;font-size:10pt">
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<a name="l1"></a><span class=cF9>CHeapCtrl</span><span class=cF0> *</span><span class=cF5>HeapCtrlInit</span><span class=cF0>(</span><span class=cF9>CHeapCtrl</span><span class=cF0> *hc=</span><span class=cF3>NULL</span><span class=cF0>, </span><span class=cF9>CTask</span><span class=cF0> *task=</span><span class=cF3>NULL</span><span class=cF0>, </span><span class=cF9>CBlkPool</span><span class=cF0> *bp)
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<a name="l2"></a>{</span><span class=cF2>//See </span><a href="https://tomawezome.github.io/ZealOS/System/Utils/HeapLog.html#l83"><span class=cF4>HeapLog</span></a><span class=cF2>() for an example.</span><span class=cF0>
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<a name="l3"></a></span><span class=cF2>//Duplicated for </span><a href="https://tomawezome.github.io/ZealOS/Kernel/KStart64.html#l29"><span class=cF4>System Task</span></a><span class=cF2>.</span><span class=cF0>
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<a name="l4"></a> </span><span class=cF1>if</span><span class=cF0> (!hc)
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<a name="l5"></a> hc = </span><span class=cF5>ZCAlloc</span><span class=cF0>(</span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF9>CHeapCtrl</span><span class=cF7>)</span><span class=cF0>);
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<a name="l6"></a> hc->hc_signature = </span><span class=cF3>HEAP_CTRL_SIGNATURE_VAL</span><span class=cF0>;
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<a name="l7"></a> hc->mem_task = task;
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<a name="l8"></a> hc->bp = bp;
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<a name="l9"></a> </span><span class=cF5>QueueInit</span><span class=cF0>(&hc->next_mem_blk);
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<a name="l10"></a> hc->last_mergable = </span><span class=cF3>NULL</span><span class=cF0>;
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<a name="l11"></a> hc->next_um = hc->last_um = (&hc->next_um)(</span><span class=cF1>U8</span><span class=cF0> *) - </span><span class=cF1>offset</span><span class=cF0>(</span><span class=cF9>CMemUsed</span><span class=cF0>.next);
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<a name="l12"></a> </span><span class=cF1>return</span><span class=cF0> hc;
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<a name="l13"></a>}
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<a name="l14"></a>
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<a name="l15"></a></span><span class=cF1>U0</span><span class=cF0> </span><span class=cF5>HeapCtrlDel</span><span class=cF0>(</span><span class=cF9>CHeapCtrl</span><span class=cF0> *hc)
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<a name="l16"></a>{</span><span class=cF2>//Free all blks alloced to a HeapCtrl.</span><span class=cF0>
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<a name="l17"></a> </span><span class=cF9>CMemBlk</span><span class=cF0> *m, *m1;
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<a name="l18"></a>
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<a name="l19"></a> </span><span class=cF1>if</span><span class=cF0> (hc)
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<a name="l20"></a> </span><span class=cF7>{</span><span class=cF0>
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<a name="l21"></a> </span><span class=cF1>PUSHFD</span><span class=cF0>
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<a name="l22"></a> </span><span class=cF1>CLI</span><span class=cF0>
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<a name="l23"></a> </span><span class=cF1>while</span><span class=cF0> (</span><span class=cF5>LBts</span><span class=cF7>(</span><span class=cF0>&hc->locked_flags, </span><span class=cF3>HClf_LOCKED</span><span class=cF7>)</span><span class=cF0>)
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<a name="l24"></a> </span><span class=cF1>PAUSE</span><span class=cF0>
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<a name="l25"></a> m = hc->next_mem_blk;
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<a name="l26"></a> </span><span class=cF1>while</span><span class=cF0> (m != &hc->next_mem_blk)
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<a name="l27"></a> {
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<a name="l28"></a> m1 = m->next;
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<a name="l29"></a> </span><span class=cFD>MemPagTaskFree</span><span class=cF0>(m, hc);
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<a name="l30"></a> m = m1;
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<a name="l31"></a> }
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<a name="l32"></a> </span><span class=cF5>LBtr</span><span class=cF0>(&hc->locked_flags, </span><span class=cF3>HClf_LOCKED</span><span class=cF0>);
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<a name="l33"></a> </span><span class=cF1>POPFD</span><span class=cF0>
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<a name="l34"></a>
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<a name="l35"></a> </span><span class=cF5>Free</span><span class=cF0>(hc);
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<a name="l36"></a> </span><span class=cF7>}</span><span class=cF0>
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<a name="l37"></a>}
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</span></pre></body>
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</html>
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