templeos-info/public/Wb/Kernel/Mem/HeapCtrl.HC.HTML

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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)
<a name="l2"></a>{</span><span class=cF2>//See </span><a href="/Wb/Adam/Opt/Utils/HeapLog.HC.HTML#l73"><span class=cF4>HeapLog</span></a><span class=cF2>() for an example.</span><span class=cF0>
<a name="l3"></a></span><span class=cF2>//Duplicated for </span><a href="/Wb/Kernel/KStart64.HC.HTML#l19"><span class=cF4>Adam Task</span></a><span class=cF2>.</span><span class=cF0>
<a name="l4"></a> </span><span class=cF1>if</span><span class=cF0> (!hc)
<a name="l5"></a> hc=</span><span class=cF5>ACAlloc</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>);
<a name="l6"></a> hc-&gt;hc_signature=</span><span class=cF3>HEAP_CTRL_SIGNATURE_VAL</span><span class=cF0>;
<a name="l7"></a> hc-&gt;mem_task=task;
<a name="l8"></a> hc-&gt;bp=bp;
<a name="l9"></a> </span><span class=cF5>QueInit</span><span class=cF0>(&amp;hc-&gt;next_mem_blk);
<a name="l10"></a> hc-&gt;last_mergable=</span><span class=cF3>NULL</span><span class=cF0>;
<a name="l11"></a> hc-&gt;next_um=hc-&gt;last_um=(&amp;hc-&gt;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);
<a name="l12"></a> </span><span class=cF1>return</span><span class=cF0> hc;
<a name="l13"></a>}
<a name="l14"></a>
<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)
<a name="l16"></a>{</span><span class=cF2>//Free all blks alloced to a HeapCtrl.</span><span class=cF0>
<a name="l17"></a> </span><span class=cF9>CMemBlk</span><span class=cF0> *m,*m1;
<a name="l18"></a> </span><span class=cF1>if</span><span class=cF0> (hc) </span><span class=cF7>{</span><span class=cF0>
<a name="l19"></a> </span><span class=cF1>PUSHFD</span><span class=cF0>
<a name="l20"></a> </span><span class=cF1>CLI</span><span class=cF0>
<a name="l21"></a> </span><span class=cF1>while</span><span class=cF0> (</span><span class=cF5>LBts</span><span class=cF7>(</span><span class=cF0>&amp;hc-&gt;locked_flags,</span><span class=cF3>HClf_LOCKED</span><span class=cF7>)</span><span class=cF0>)
<a name="l22"></a> </span><span class=cF1>PAUSE</span><span class=cF0>
<a name="l23"></a> m=hc-&gt;next_mem_blk;
<a name="l24"></a> </span><span class=cF1>while</span><span class=cF0> (m!=&amp;hc-&gt;next_mem_blk) {
<a name="l25"></a> m1=m-&gt;next;
<a name="l26"></a> </span><span class=cFD>MemPagTaskFree</span><span class=cF0>(m,hc);
<a name="l27"></a> m=m1;
<a name="l28"></a> }
<a name="l29"></a> </span><span class=cF5>LBtr</span><span class=cF0>(&amp;hc-&gt;locked_flags,</span><span class=cF3>HClf_LOCKED</span><span class=cF0>);
<a name="l30"></a> </span><span class=cF1>POPFD</span><span class=cF0>
<a name="l31"></a> </span><span class=cF5>Free</span><span class=cF0>(hc);
<a name="l32"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l33"></a>}
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