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ZealOS/docs/Kernel/BlkDev/DiskDirContext.CC.html
TomAwezome a0f20b1dba Implement AHCIAtapiModeWriteSet.
2021-08-09 02:04:03 -04:00

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<a name="l1"></a><span class=cF1>U0</span><span class=cF0> </span><span class=cF5>DirContextDel</span><span class=cF0>(</span><span class=cF9>CDirContext</span><span class=cF0> *dirc, </span><span class=cF1>Bool</span><span class=cF0> restore=</span><span class=cF3>TRUE</span><span class=cF0>)
<a name="l2"></a>{</span><span class=cF2>//Change back to old cur_dir and drv.</span><span class=cF0>
<a name="l3"></a> </span><span class=cF9>CBlkDev</span><span class=cF0> *bd;
<a name="l4"></a>
<a name="l5"></a> </span><span class=cF1>if</span><span class=cF0> (!dirc)
<a name="l6"></a> </span><span class=cF1>return</span><span class=cF0>;
<a name="l7"></a> </span><span class=cF1>if</span><span class=cF0> (restore)
<a name="l8"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l9"></a> bd = dirc-&gt;old_dv-&gt;bd;
<a name="l10"></a> </span><span class=cF1>if</span><span class=cF0> (!</span><span class=cF7>(</span><span class=cF0>bd-&gt;flags &amp; </span><span class=cF3>BDF_INIT_IN_PROGRESS</span><span class=cF7>)</span><span class=cF0>)
<a name="l11"></a> {
<a name="l12"></a> </span><span class=cF1>if</span><span class=cF0> (dirc-&gt;old_dir)
<a name="l13"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l14"></a> </span><span class=cF5>Drive</span><span class=cF0>(</span><span class=cF5>Drive2Letter</span><span class=cF7>(</span><span class=cF0>dirc-&gt;old_dv</span><span class=cF7>)</span><span class=cF0>);
<a name="l15"></a> </span><span class=cF5>Cd</span><span class=cF0>(dirc-&gt;old_dir);
<a name="l16"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l17"></a> }
<a name="l18"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l19"></a> {
<a name="l20"></a> </span><span class=cF5>Fs</span><span class=cF0>-&gt;cur_dv = dirc-&gt;old_dv;
<a name="l21"></a> </span><span class=cF5>Free</span><span class=cF0>(</span><span class=cF5>Fs</span><span class=cF0>-&gt;cur_dir);
<a name="l22"></a> </span><span class=cF5>Fs</span><span class=cF0>-&gt;cur_dir = </span><span class=cF5>StrNew</span><span class=cF0>(</span><span class=cF6>&quot;/&quot;</span><span class=cF0>);
<a name="l23"></a> }
<a name="l24"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l25"></a> </span><span class=cF5>Free</span><span class=cF0>(dirc-&gt;old_dir);
<a name="l26"></a> </span><span class=cF5>Free</span><span class=cF0>(dirc-&gt;mask);
<a name="l27"></a> </span><span class=cF5>Free</span><span class=cF0>(dirc);
<a name="l28"></a>}
<a name="l29"></a>
<a name="l30"></a></span><span class=cF9>CDirContext</span><span class=cF0> *</span><span class=cF5>DirContextNew</span><span class=cF0>(</span><span class=cF1>U8</span><span class=cF0> *_mask, </span><span class=cF1>Bool</span><span class=cF0> make_mask=</span><span class=cF3>FALSE</span><span class=cF0>, </span><span class=cF1>Bool</span><span class=cF0> make_dirs=</span><span class=cF3>FALSE</span><span class=cF0>, </span><span class=cF1>Bool</span><span class=cF0> no_mask=</span><span class=cF3>FALSE</span><span class=cF0>)
<a name="l31"></a>{</span><span class=cF2>//Save cur_dir and drv. Change to new dir.</span><span class=cF0>
<a name="l32"></a> </span><span class=cF1>Bool</span><span class=cF0> valid = </span><span class=cF3>TRUE</span><span class=cF0>, old_silent;
<a name="l33"></a> </span><span class=cF9>I64</span><span class=cF0> mask_len = </span><span class=cF5>StrLen</span><span class=cF0>(_mask);
<a name="l34"></a> </span><span class=cF1>U8</span><span class=cF0> *buf, *mask, *tmp_mask, *semicolon_mask;
<a name="l35"></a> </span><span class=cF9>CDirContext</span><span class=cF0> *dirc = </span><span class=cF5>CAlloc</span><span class=cF0>(</span><span class=cF1>sizeof</span><span class=cF7>(</span><span class=cF9>CDirContext</span><span class=cF7>)</span><span class=cF0>);
<a name="l36"></a>
<a name="l37"></a> dirc-&gt;old_dir = </span><span class=cF5>StrNew</span><span class=cF0>(</span><span class=cF5>Fs</span><span class=cF0>-&gt;cur_dir);
<a name="l38"></a> dirc-&gt;old_dv = </span><span class=cF5>Fs</span><span class=cF0>-&gt;cur_dv;
<a name="l39"></a> mask = </span><span class=cF5>MStrUtil</span><span class=cF0>(_mask, </span><span class=cF3>SUF_REM_LEADING</span><span class=cF0> | </span><span class=cF3>SUF_REM_TRAILING</span><span class=cF0> | </span><span class=cF3>SUF_REM_CTRL_CHARS</span><span class=cF0>);
<a name="l40"></a> tmp_mask = mask;
<a name="l41"></a> </span><span class=cF1>if</span><span class=cF0> (*mask &amp;&amp; mask[</span><span class=cFE>1</span><span class=cF0>] == </span><span class=cF6>':'</span><span class=cF0>)
<a name="l42"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l43"></a> </span><span class=cF1>if</span><span class=cF0> (</span><span class=cF5>Fs</span><span class=cF0>-&gt;cur_dv != </span><span class=cF5>Letter2Drive</span><span class=cF7>(</span><span class=cF0>*mask</span><span class=cF7>)</span><span class=cF0> &amp;&amp; !</span><span class=cF5>Drive</span><span class=cF7>(</span><span class=cF0>*mask</span><span class=cF7>)</span><span class=cF0>)
<a name="l44"></a> valid = </span><span class=cF3>FALSE</span><span class=cF0>;
<a name="l45"></a> mask += </span><span class=cFE>2</span><span class=cF0>;
<a name="l46"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l47"></a> </span><span class=cF1>if</span><span class=cF0> (*mask == </span><span class=cF6>'~'</span><span class=cF0> &amp;&amp; </span><span class=cF5>Fs</span><span class=cF0>-&gt;cur_dv != </span><span class=cF5>Letter2Drive</span><span class=cF7>(</span><span class=cF6>'~'</span><span class=cF7>)</span><span class=cF0> &amp;&amp; !</span><span class=cF5>Drive</span><span class=cF7>(</span><span class=cF6>'~'</span><span class=cF7>)</span><span class=cF0>)
<a name="l48"></a> valid = </span><span class=cF3>FALSE</span><span class=cF0>;
<a name="l49"></a> dirc-&gt;drive = </span><span class=cF5>Fs</span><span class=cF0>-&gt;cur_dv;
<a name="l50"></a> </span><span class=cF5>DriveCheck</span><span class=cF0>(dirc-&gt;drive);
<a name="l51"></a> buf = </span><span class=cF5>MAlloc</span><span class=cF0>(mask_len + </span><span class=cFE>2</span><span class=cF0>);
<a name="l52"></a> </span><span class=cF5>StrCopy</span><span class=cF0>(buf, mask);
<a name="l53"></a>
<a name="l54"></a> dirc-&gt;mask = </span><span class=cF5>MAlloc</span><span class=cF0>(mask_len + </span><span class=cFE>2</span><span class=cF0>);
<a name="l55"></a> </span><span class=cF1>if</span><span class=cF0> (no_mask)
<a name="l56"></a> *dirc-&gt;mask = </span><span class=cFE>0</span><span class=cF0>;
<a name="l57"></a> </span><span class=cF1>else</span><span class=cF0> </span><span class=cF1>if</span><span class=cF0> (</span><span class=cF5>StrOcc</span><span class=cF7>(</span><span class=cF0>buf, </span><span class=cF6>';'</span><span class=cF7>)</span><span class=cF0>)
<a name="l58"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l59"></a> semicolon_mask = </span><span class=cF5>MAlloc</span><span class=cF0>(mask_len + </span><span class=cFE>2</span><span class=cF0>);
<a name="l60"></a> </span><span class=cF5>StrCopy</span><span class=cF0>(semicolon_mask, mask);
<a name="l61"></a> </span><span class=cF5>StrFirstRemove</span><span class=cF0>(semicolon_mask, </span><span class=cF6>&quot;;&quot;</span><span class=cF0>, buf);
<a name="l62"></a> </span><span class=cF5>StrLastRemove</span><span class=cF0>(buf, </span><span class=cF6>&quot;/&quot;</span><span class=cF0>, dirc-&gt;mask);
<a name="l63"></a> </span><span class=cF5>CatPrint</span><span class=cF0>(dirc-&gt;mask, </span><span class=cF6>&quot;;%s&quot;</span><span class=cF0>, semicolon_mask);
<a name="l64"></a> </span><span class=cF5>Free</span><span class=cF0>(semicolon_mask);
<a name="l65"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l66"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l67"></a> </span><span class=cF5>StrLastRemove</span><span class=cF0>(buf, </span><span class=cF6>&quot;/&quot;</span><span class=cF0>, dirc-&gt;mask);
<a name="l68"></a>
<a name="l69"></a> </span><span class=cF1>if</span><span class=cF0> (*mask == </span><span class=cF6>'/'</span><span class=cF0> &amp;&amp; !*buf)
<a name="l70"></a> </span><span class=cF5>StrCopy</span><span class=cF0>(buf, </span><span class=cF6>&quot;/&quot;</span><span class=cF0>);
<a name="l71"></a></span><span class=cF2>//If began with Dir, change to Dir.</span><span class=cF0>
<a name="l72"></a> </span><span class=cF1>if</span><span class=cF0> (*buf &amp;&amp; !</span><span class=cF5>Cd</span><span class=cF7>(</span><span class=cF0>buf, make_dirs</span><span class=cF7>)</span><span class=cF0>)
<a name="l73"></a> valid = </span><span class=cF3>FALSE</span><span class=cF0>;
<a name="l74"></a> </span><span class=cF1>if</span><span class=cF0> (valid &amp;&amp; make_mask)
<a name="l75"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l76"></a> </span><span class=cF1>if</span><span class=cF0> (!*dirc-&gt;mask)
<a name="l77"></a> {
<a name="l78"></a> </span><span class=cF5>Free</span><span class=cF0>(dirc-&gt;mask);
<a name="l79"></a> dirc-&gt;mask = </span><span class=cF5>StrNew</span><span class=cF0>(</span><span class=cF6>&quot;*&quot;</span><span class=cF0>);
<a name="l80"></a> }
<a name="l81"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l82"></a> {
<a name="l83"></a> </span><span class=cF1>if</span><span class=cF0> (!make_dirs || </span><span class=cF5>FileNameCheck</span><span class=cF7>(</span><span class=cF0>dirc-&gt;mask</span><span class=cF7>)</span><span class=cF0>)
<a name="l84"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l85"></a> old_silent = </span><span class=cF5>Silent</span><span class=cF0>;
<a name="l86"></a></span><span class=cF2>//Try mask to see if Dir. If Dir, change to dir and set to &quot;*&quot;.</span><span class=cF0>
<a name="l87"></a> </span><span class=cF1>if</span><span class=cF0> (</span><span class=cF5>Cd</span><span class=cF7>(</span><span class=cF0>dirc-&gt;mask, make_dirs</span><span class=cF7>)</span><span class=cF0>)
<a name="l88"></a> {
<a name="l89"></a> </span><span class=cF5>Free</span><span class=cF0>(dirc-&gt;mask);
<a name="l90"></a> dirc-&gt;mask = </span><span class=cF5>StrNew</span><span class=cF0>(</span><span class=cF6>&quot;*&quot;</span><span class=cF0>);
<a name="l91"></a> }
<a name="l92"></a> </span><span class=cF5>Silent</span><span class=cF0>(old_silent);
<a name="l93"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l94"></a> }
<a name="l95"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l96"></a> </span><span class=cF5>Free</span><span class=cF0>(buf);
<a name="l97"></a> </span><span class=cF5>Free</span><span class=cF0>(tmp_mask);
<a name="l98"></a> </span><span class=cF1>if</span><span class=cF0> (!valid)
<a name="l99"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l100"></a> </span><span class=cF5>DirContextDel</span><span class=cF0>(dirc);
<a name="l101"></a> dirc = </span><span class=cF3>NULL</span><span class=cF0>;
<a name="l102"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l103"></a> </span><span class=cF1>return</span><span class=cF0> dirc;
<a name="l104"></a>}
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