Does nerr_log_error free the NEO_ERR *

caox <[email protected]> Wed, 21 Dec 2011 14:28:31 +0800
Newsgroups gmane.text.clearsilver.general
Message-ID <[email protected]>
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Hi

	Sorry to bother. According to the description and code example, the API  n=
err_log_error should free the err chain. But I didn't find the respective c=
ode to release the err chain inside the implementation:

void nerr_log_error (NEOERR *err)
{
  NEOERR *more;
  char buf[1024];
  char *err_name;

  if (err =3D=3D STATUS_OK)
    return;

  if (err =3D=3D INTERNAL_ERR)
  {
    ne_warn ("Internal error");
    return;
  }

  more =3D err;
  fprintf (stderr, "Traceback (innermost last):\n");
  while (more && more !=3D INTERNAL_ERR)
  {
    err =3D more;
    more =3D err->next;
    if (err->error !=3D NERR_PASS)
    {
      NEOERR *r;
      if (err->error =3D=3D 0)
      {
	err_name =3D buf;
	snprintf (buf, sizeof (buf), "Unknown Error");
      }
      else
      {
	r =3D uListGet (Errors, err->error - 1, (void *)&err_name);
	if (r !=3D STATUS_OK)
	{
	  err_name =3D buf;
	  snprintf (buf, sizeof (buf), "Error %d", err->error);
	}
      }

      fprintf (stderr, "  File \"%s\", line %d, in %s()\n%s: %s\n", err->fi=
le,=20
	  err->lineno, err->func, err_name, err->desc);
    }
    else
    {
      fprintf (stderr, "  File \"%s\", line %d, in %s()\n", err->file,=20
	  err->lineno, err->func);
      if (err->desc[0])
      {
	fprintf (stderr, "    %s\n", err->desc);
      }
    }
  }
}

So, is the err chain freed in other place or I have missed something inside=
 the function? Does nerr_log_error free the err chain, as for nerr_err_stri=
ng and nerr_err_traceback?

Thanks.

B.R.
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      <p>Hi<div><br></div><div><span class="Apple-tab-span" style="white-space:pre;">	</span>Sorry to bother. According to the description and code example, the API &nbsp;nerr_log_error should free the err chain. But I didn't find the respective code to release the err chain inside the implementation:</div><div><br></div><div><div><span style="color: #a00069;">void</span> nerr_log_error (<span style="color: #006640;">NEOERR</span> *err)</div><div>{</div><div>&nbsp; <span style="color: #006640;">NEOERR</span> *more;</div><div>&nbsp; <span style="color: #a00069;">char</span> buf[1024];</div><div>&nbsp; <span style="color: #a00069;">char</span> *err_name;</div><div><br></div><div>&nbsp; <span style="color: #a00069;">if</span> (err == STATUS_OK)</div><div style="color: rgb(160, 0, 105);"><span
  style="color: #000000;">&nbsp; &nbsp; </span>return<span style="color: #000000;">;</span></div><div><br></div><div>&nbsp; <span style="color: #a00069;">if</span> (err == INTERNAL_ERR)</div><div>&nbsp; {</div><div style="color: rgb(92, 0, 255);"><span style="color: #000000;">&nbsp; &nbsp; ne_warn (</span>"Internal error"<span style="color: #000000;">);</span></div><div style="color: rgb(160, 0, 105);"><span style="color: #000000;">&nbsp; &nbsp; </span>return<span style="color: #000000;">;</span></div><div>&nbsp; }</div><div><br></div><div>&nbsp; more = err;</div><div style="color: rgb(92, 0, 255);"><span style="color: #000000;">&nbsp; </span><span style="color: #842496;">fprintf</span><span style="color: #000000;"> (stderr, </span>"Traceback (innermost last):\n"<span style="color: #00000
 0;">);</span></div><div>&nbsp; <span style="color: #a00069;">while</span> (more &amp;&amp; more != INTERNAL_ERR)</div><div>&nbsp; {</div><div>&nbsp; &nbsp; err = more;</div><div>&nbsp; &nbsp; more = err-&gt;<span style="color: #3600d1;">next</span>;</div><div>&nbsp; &nbsp; <span style="color: #a00069;">if</span> (err-&gt;<span style="color: #3600d1;">error</span> != NERR_PASS)</div><div>&nbsp; &nbsp; {</div><div>&nbsp; &nbsp; &nbsp; <span style="color: #006640;">NEOERR</span> *r;</div><div>&nbsp; &nbsp; &nbsp; <span style="color: #a00069;">if</span> (err-&gt;<span style="color: #3600d1;">error</span> == 0)</div><div>&nbsp; &nbsp; &nbsp; {</div><div><span class="Apple-tab-span" style="white-space:pre;">	</span>err_name = buf;</div><div><span class="Apple-tab-span" style="white-space:pre;"
 >	</span>snprintf (buf, <span style="color: #a00069;">sizeof</span> (buf), <span style="color: #5c00ff;">"Unknown Error"</span>);</div><div>&nbsp; &nbsp; &nbsp; }</div><div>&nbsp; &nbsp; &nbsp; <span style="color: #a00069;">else</span></div><div>&nbsp; &nbsp; &nbsp; {</div><div><span class="Apple-tab-span" style="white-space:pre;">	</span>r = uListGet (Errors, err-&gt;<span style="color: #3600d1;">error</span> - 1, (<span style="color: #a00069;">void</span> *)&amp;err_name);</div><div><span class="Apple-tab-span" style="white-space:pre;">	</span><span style="color: #a00069;">if</span> (r != STATUS_OK)</div><div><span class="Apple-tab-span" style="white-space:pre;">	</span>{</div><div><span class="Apple-tab-span" style="white-space:pre;">	</span>&nbsp; err_name = buf;</div><div><span clas
 s="Apple-tab-span" style="white-space:pre;">	</span>&nbsp; snprintf (buf, <span style="color: #a00069;">sizeof</span> (buf), <span style="color: #5c00ff;">"Error %d"</span>, err-&gt;<span style="color: #3600d1;">error</span>);</div><div><span class="Apple-tab-span" style="white-space:pre;">	</span>}</div><div>&nbsp; &nbsp; &nbsp; }</div><div><br></div><div style="color: rgb(92, 0, 255);"><span style="color: #000000;">&nbsp; &nbsp; &nbsp; </span><span style="color: #842496;">fprintf</span><span style="color: #000000;"> (stderr, </span>"&nbsp; File \"%s\", line %d, in %s()\n%s: %s\n"<span style="color: #000000;">, err-&gt;</span><span style="color: #3600d1;">file</span><span style="color: #000000;">,&nbsp;</span></div><div><span class="Apple-tab-span" style="white-space:pre;">	</span>&nbsp
 ; err-&gt;<span style="color: #3600d1;">lineno</span>, err-&gt;<span style="color: #3600d1;">func</span>, err_name, err-&gt;<span style="color: #3600d1;">desc</span>);</div><div>&nbsp; &nbsp; }</div><div>&nbsp; &nbsp; <span style="color: #a00069;">else</span></div><div>&nbsp; &nbsp; {</div><div style="color: rgb(92, 0, 255);"><span style="color: #000000;">&nbsp; &nbsp; &nbsp; </span><span style="color: #842496;">fprintf</span><span style="color: #000000;"> (stderr, </span>"&nbsp; File \"%s\", line %d, in %s()\n"<span style="color: #000000;">, err-&gt;</span><span style="color: #3600d1;">file</span><span style="color: #000000;">,&nbsp;</span></div><div><span class="Apple-tab-span" style="white-space:pre;">	</span>&nbsp; err-&gt;<span style="color: #3600d1;">lineno</span>, err-&gt;<span st
 yle="color: #3600d1;">func</span>);</div><div>&nbsp; &nbsp; &nbsp; <span style="color: #a00069;">if</span> (err-&gt;<span style="color: #3600d1;">desc</span>[0])</div><div>&nbsp; &nbsp; &nbsp; {</div><div><span class="Apple-tab-span" style="white-space:pre;">	</span><span style="color: #842496;">fprintf</span> (stderr, <span style="color: #5c00ff;">"&nbsp; &nbsp; %s\n"</span>, err-&gt;<span style="color: #3600d1;">desc</span>);</div><div>&nbsp; &nbsp; &nbsp; }</div><div>&nbsp; &nbsp; }</div><div>&nbsp; }</div><div>}</div></div><div><br></div><div><span class="Apple-style-span" style="font-family: 'Heiti SC';font-size: medium;">So, is the err chain freed in other place or I have missed something inside the function? Does&nbsp;nerr_log_error free the err chain, as for nerr_err_string and n
 err_err_traceback?</span></div><div><span class="Apple-style-span" style="font-family: 'Heiti SC';font-size: medium;"><br></span></div><div><font class="Apple-style-span" face="'Heiti SC'" size="3">Thanks.</font></div><div><font class="Apple-style-span" face="'Heiti SC'" size="3"><br></font></div><div><font class="Apple-style-span" face="'Heiti SC'" size="3">B.R.</font></div></p>

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