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<!DOCTYPE concept
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<concept id="GUID-1D25050A-4CC2-5017-BBE8-7AC380BAC027" xml:lang="en"><title>Category:
FSCLIENT Panic</title><prolog><metadata><keywords/></metadata></prolog><conbody>
<p>Panics with this category are raised on clients requesting services provided
by the file server. Typically, they are caused by passing bad or contradictory
values to class constructors or member functions. </p>
<p>The thread causing the panic is terminated. </p>
<p>To avoid confusion, we need to emphasise that the panic category is the
14 character string <i>FSCLIENT panic</i>, and that the word panic is part
of the panic category. </p>
<table id="GUID-247E0C7D-0DBB-5873-8C05-A25A5EFFE6C7">
<tgroup cols="2"><colspec colname="col0"/><colspec colname="col1"/>
<tbody>
<row>
<entry><p> <codeph>0</codeph>  </p> </entry>
<entry><p>This panic is raised by: </p> <ul>
<li id="GUID-ED8D9E1E-8FAA-543B-9729-FDAC7BE30E2F"><p>the <codeph>TDriveUnit(TInt
aDrive)</codeph> variant of the <xref href="GUID-9BDD476C-04E1-3271-AFD9-8F86D818CE46.dita"><apiname>TDriveUnit</apiname></xref> constructor, </p> </li>
<li id="GUID-EACAAFC7-D828-5054-9B71-737E3968AC40"><p>the <codeph>(TInt aDrive)</codeph> variant
of the <xref href="GUID-9BDD476C-04E1-3271-AFD9-8F86D818CE46.dita"><apiname>TDriveUnit</apiname></xref> assignment operator </p> </li>
</ul> <p>when the specified drive number is greater than or equal to <codeph>KMaxDrives</codeph>,
i.e. 26. </p> </entry>
</row>
<row>
<entry><p> <codeph>1</codeph>  </p> </entry>
<entry><p>This panic is raised by: </p> <ul>
<li id="GUID-77317522-EAF0-59D3-9EF6-FDDF9891B5D4"><p>the <codeph>TDriveUnit(const
TDesC&amp; aDriveText)</codeph> variant of the <xref href="GUID-9BDD476C-04E1-3271-AFD9-8F86D818CE46.dita"><apiname>TDriveUnit</apiname></xref> constructor, </p> </li>
<li id="GUID-91779A42-CBD7-5533-A74E-5335B64B1123"><p>the <codeph>(const TDesC&amp;
aDriveText)</codeph> variant of the <xref href="GUID-9BDD476C-04E1-3271-AFD9-8F86D818CE46.dita"><apiname>TDriveUnit</apiname></xref> assignment
operator </p> </li>
</ul> <p>when the specified drive letter is invalid, i.e. does not correspond
to a drive number. </p> </entry>
</row>
<row>
<entry><p> <codeph>2</codeph>  </p> </entry>
<entry><p>This panic is raised when searching for the next file using <xref href="GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA.dita#GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA/GUID-5CF0E979-3A6F-3CC6-9D1A-56FE50B7A0AC"><apiname>TFindFile::Find()</apiname></xref> or <xref href="GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA.dita#GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA/GUID-095CE56D-FFCB-3756-A2D2-71036360A4A7"><apiname>TFindFile::FindWild()</apiname></xref> before the initial call specifying the search method. </p> <p>Calls to <xref href="GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA.dita#GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA/GUID-5CF0E979-3A6F-3CC6-9D1A-56FE50B7A0AC"><apiname>TFindFile::Find()</apiname></xref> cannot
be made until an initial call has been made to either of: </p> <ul>
<li id="GUID-6628C775-90D5-5DFE-8676-1F6B884B976A"><p> <xref href="GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA.dita#GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA/GUID-8C931E8E-7C5F-3EA5-9B87-8073E21CDDA6"><apiname>TFindFile::FindByDir()</apiname></xref>  </p> </li>
<li id="GUID-FBA409DA-C9D0-5F09-A2EE-F8ADD902969D"><p> <xref href="GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA.dita#GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA/GUID-6FF65FD0-86E6-3785-BEE8-23DB483DE130"><apiname>TFindFile::FindByPath()</apiname></xref>  </p> </li>
</ul> <p>Calls to <xref href="GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA.dita#GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA/GUID-095CE56D-FFCB-3756-A2D2-71036360A4A7"><apiname>TFindFile::FindWild()</apiname></xref> cannot be made
until an initial call has been made to either of: </p> <ul>
<li id="GUID-107C27C2-2DB0-5590-A896-D942CFE5497B"><p> <xref href="GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA.dita#GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA/GUID-15BA9901-0159-33F0-B2F0-EEBD72EA2E17"><apiname>TFindFile::FindWildByDir()</apiname></xref>  </p> </li>
<li id="GUID-AC2B1F94-EB71-525B-8680-CFAF01C87853"><p> <xref href="GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA.dita#GUID-98CC1E75-D2DE-3700-928C-7D530237ECBA/GUID-EFCA111B-808A-3AF8-903F-2E4CA5F7375B"><apiname>TFindFile::FindWildByPath()</apiname></xref>  </p> </li>
</ul> </entry>
</row>
<row>
<entry><p> <codeph>3</codeph>  </p> </entry>
<entry><p> <i>Not used.</i>  </p> </entry>
</row>
<row>
<entry><p> <codeph>4</codeph>  </p> </entry>
<entry><p> <i>Not used.</i>  </p> </entry>
</row>
<row>
<entry><p> <codeph>5</codeph>  </p> </entry>
<entry><p>This panic is raised by a call to <xref href="GUID-95310602-EA12-3AEE-BDBD-F750FC17CAC4.dita#GUID-95310602-EA12-3AEE-BDBD-F750FC17CAC4/GUID-EBEDA043-5E46-3082-B473-62885DAC591C"><apiname>TFileText::Seek()</apiname></xref> when
the seek mode passed to the function is neither <xref href="GUID-CA98DC2A-4B7D-336D-A251-C29120DDD444.dita#GUID-CA98DC2A-4B7D-336D-A251-C29120DDD444/GUID-002917A4-A1E6-3FBB-B133-A0734AB5C4DA"><apiname>TSeek::ESeekStart()</apiname></xref> nor <xref href="GUID-CA98DC2A-4B7D-336D-A251-C29120DDD444.dita#GUID-CA98DC2A-4B7D-336D-A251-C29120DDD444/GUID-5B88CF12-C882-33C8-833B-B4B9978431E7"><apiname>TSeek::ESeekEnd()</apiname></xref>. </p> </entry>
</row>
<row>
<entry><p> <codeph>6</codeph>  </p> </entry>
<entry><p> <i>Not used.</i>  </p> </entry>
</row>
<row>
<entry><p> <codeph>7</codeph>  </p> </entry>
<entry><p> <i>Not used.</i>  </p> </entry>
</row>
<row>
<entry><p> <codeph>8</codeph>  </p> </entry>
<entry><p> <i>Not used.</i>  </p> </entry>
</row>
<row>
<entry><p> <codeph>9</codeph>  </p> </entry>
<entry><p> <i>Not used.</i>  </p> </entry>
</row>
<row>
<entry><p> <codeph>10</codeph>  </p> </entry>
<entry><p>This panic is raised by the <xref href="GUID-82CEC14F-1479-3922-846A-9FCDB6465EF7.dita"><apiname>CFileMan</apiname></xref> implementation
when the operation to be run is undefined. </p> </entry>
</row>
<row>
<entry><p> <codeph>11</codeph>  </p> </entry>
<entry><p>This panic is raised by <xref href="GUID-C1C0C7F9-2665-3475-B70F-61C41291BB4D.dita#GUID-C1C0C7F9-2665-3475-B70F-61C41291BB4D/GUID-9EC41897-DE6E-31EB-A092-4EFD608D6E0D"><apiname>CFileBase::CurrentEntry()</apiname></xref> if
there is no current entry. </p> </entry>
</row>
<row>
<entry><p> <codeph>12</codeph>  </p> </entry>
<entry><p>The value returned by the file management observer functions: </p> <ul>
<li id="GUID-8CC343EF-A37D-51FA-B7FB-F3FDAA8AC16F"><p> <xref href="GUID-E608485F-B3E3-3310-A80E-169D8B9D2234.dita#GUID-E608485F-B3E3-3310-A80E-169D8B9D2234/GUID-54D77B42-2AD9-3F82-89A7-3E651FAC2670"><apiname>MFileManObserver::NotifyFileManStarted()</apiname></xref>  </p> </li>
<li id="GUID-A6D0E7B3-8776-50F0-8FA4-454B5235CF65"><p> <xref href="GUID-E608485F-B3E3-3310-A80E-169D8B9D2234.dita#GUID-E608485F-B3E3-3310-A80E-169D8B9D2234/GUID-A73812AF-0877-3322-90C9-8A8F43708C8E"><apiname>MFileManObserver::NotifyFileManEnded()</apiname></xref>  </p> </li>
<li id="GUID-64372697-7364-558D-B216-35D721DBB655"><p> <xref href="GUID-E608485F-B3E3-3310-A80E-169D8B9D2234.dita#GUID-E608485F-B3E3-3310-A80E-169D8B9D2234/GUID-8D17D294-DE4A-3382-A832-9D318F522DE6"><apiname>MFileManObserver::NotifyFileManOperation()</apiname></xref> </p> </li>
</ul> <p>is not a valid <xref href="GUID-E608485F-B3E3-3310-A80E-169D8B9D2234.dita#GUID-E608485F-B3E3-3310-A80E-169D8B9D2234/GUID-3147D2FB-F840-3780-8697-5053CA7EEF6D"><apiname>MFileManObserver::TControl()</apiname></xref> enum
value. </p> </entry>
</row>
<row>
<entry><p> <codeph>13</codeph>  </p> </entry>
<entry><p> <i>Not used.</i>  </p> </entry>
</row>
<row>
<entry><p> <codeph>14</codeph>  </p> </entry>
<entry><p> <i>Not used.</i>  </p> </entry>
</row>
<row>
<entry><p> <codeph>15</codeph>  </p> </entry>
<entry><p> <i>This panic is raised in debug builds only.</i>  </p> <p>This
panic is raised in a call to <xref href="GUID-C657AF2D-1183-3CD2-ACAF-3B0B00FC91BB.dita#GUID-C657AF2D-1183-3CD2-ACAF-3B0B00FC91BB/GUID-904B65E6-61DE-3A5D-A5E1-E7577D0FD2BB"><apiname>CDirScan::SetScanDataL()</apiname></xref> when
the path does not contain at least one '\' character. </p> </entry>
</row>
<row>
<entry><p> <codeph>16</codeph>  </p> </entry>
<entry><p> <i>Not used.</i>  </p> </entry>
</row>
<row>
<entry><p> <codeph>17</codeph>  </p> </entry>
<entry><p>This panic is raised by <xref href="GUID-BE0804F6-4375-3C8A-8C83-968F510466E0.dita#GUID-BE0804F6-4375-3C8A-8C83-968F510466E0/GUID-4B12909C-0BC6-3FFE-8825-FA98312F74C2"><apiname>RFile::Lock()</apiname></xref> when the
number of bytes defining the region to be locked is either zero or negative. </p> </entry>
</row>
<row>
<entry><p> <codeph>18</codeph>  </p> </entry>
<entry><p>This panic is raised by <xref href="GUID-BE0804F6-4375-3C8A-8C83-968F510466E0.dita#GUID-BE0804F6-4375-3C8A-8C83-968F510466E0/GUID-9083CCAD-F9ED-36FB-9C80-79D2F1B46B77"><apiname>RFile::UnLock()</apiname></xref> when
the number of bytes defining the region to be unlocked is either zero or negative. </p> </entry>
</row>
<row>
<entry><p> <codeph>19</codeph>  </p> </entry>
<entry><p>All variants of the <xref href="GUID-BE0804F6-4375-3C8A-8C83-968F510466E0.dita#GUID-BE0804F6-4375-3C8A-8C83-968F510466E0/GUID-94CCC141-8E26-3FA3-A222-D9A658AEA8A9"><apiname>RFile::Read()</apiname></xref> and <xref href="GUID-BE0804F6-4375-3C8A-8C83-968F510466E0.dita#GUID-BE0804F6-4375-3C8A-8C83-968F510466E0/GUID-325997F1-3252-358E-B278-44D3A5418FAC"><apiname>RFile::Write()</apiname></xref> functions
take an argument denoting an offset value, in bytes, from the start of a file;
the panic is raised by these functions when the offset value is negative. </p> </entry>
</row>
<row>
<entry><p> <codeph>20</codeph>  </p> </entry>
<entry><p>This panic is raised by <xref href="GUID-BE0804F6-4375-3C8A-8C83-968F510466E0.dita#GUID-BE0804F6-4375-3C8A-8C83-968F510466E0/GUID-8592B60E-70E7-37D6-AFD2-4D2A1A87C886"><apiname>RFile::SetSize()</apiname></xref> when
the argument denoting the size of the new file is negative. </p> </entry>
</row>
<row>
<entry><p> <codeph>21</codeph>  </p> </entry>
<entry><p>This panic is raised by <xref href="GUID-BE0804F6-4375-3C8A-8C83-968F510466E0.dita#GUID-BE0804F6-4375-3C8A-8C83-968F510466E0/GUID-5CF35AAD-5D0E-356D-8E07-2948C191226E"><apiname>RFile::SetAtt()</apiname></xref> and <xref href="GUID-BE0804F6-4375-3C8A-8C83-968F510466E0.dita#GUID-BE0804F6-4375-3C8A-8C83-968F510466E0/GUID-07929B06-ADEF-3BDF-97E8-9ACD7E105EFA"><apiname>RFile::Set()</apiname></xref> when
the same attribute bit is set in both the bitmask that indicates the file
attributes to be set and the bitmask that indicates the attributes to be cleared. </p> </entry>
</row>
<row>
<entry><p> <codeph>22</codeph>  </p> </entry>
<entry><p>The panic is raised by the <codeph>[]</codeph> operator of <xref href="GUID-0355B083-6DD8-30F0-BEDF-B6BE745E2AB6.dita"><apiname>TEntryArray</apiname></xref>,
when the index value passed to the operator is greater than or equal to the
number of elements in the array. </p> </entry>
</row>
<row>
<entry><p> <codeph>23</codeph>  </p> </entry>
<entry><p>This panic is raised by <xref href="GUID-15AEDE72-80FF-3689-A771-E00F1CF3EB88.dita#GUID-15AEDE72-80FF-3689-A771-E00F1CF3EB88/GUID-58902A06-4882-3BDD-AB36-82F9002C958E"><apiname>CDir::Sort()</apiname></xref> when the
method of sorting, as defined by the single function argument, is none of
the entries: </p> <ul>
<li id="GUID-B154F18B-0F13-59FA-A03C-C1965BB18EC5"><p> <xref href="GUID-3110DC70-6DE1-3F80-82C0-74CD37782F2E.dita#GUID-3110DC70-6DE1-3F80-82C0-74CD37782F2E/GUID-FB1EE9D2-4AE7-3B56-9E62-5047680FB645"><apiname>TEntryKey::ESortNone()</apiname></xref>  </p> </li>
<li id="GUID-0E3B05EC-FD57-5573-B91F-F9B28AF601D4"><p> <xref href="GUID-3110DC70-6DE1-3F80-82C0-74CD37782F2E.dita#GUID-3110DC70-6DE1-3F80-82C0-74CD37782F2E/GUID-566D8D24-4413-3A4B-9DDE-724803331462"><apiname>TEntryKey::ESortByDate()</apiname></xref>  </p> </li>
<li id="GUID-BB51F6FB-55FD-596C-953C-E7B68E7C1B40"><p> <xref href="GUID-3110DC70-6DE1-3F80-82C0-74CD37782F2E.dita#GUID-3110DC70-6DE1-3F80-82C0-74CD37782F2E/GUID-4A4AB0DC-F743-3F5F-B53D-289955F333B9"><apiname>TEntryKey::ESortBySize()</apiname></xref>  </p> </li>
<li id="GUID-25B1E042-5C5E-59E1-AF3D-D694FE91496A"><p> <xref href="GUID-3110DC70-6DE1-3F80-82C0-74CD37782F2E.dita#GUID-3110DC70-6DE1-3F80-82C0-74CD37782F2E/GUID-3427F521-49DE-30B3-BFE1-C5D193475EC9"><apiname>TEntryKey::ESortByExt()</apiname></xref>  </p> </li>
<li id="GUID-79D81DEF-1098-58DA-ADB9-FCC6B9790BC6"><p> <xref href="GUID-3110DC70-6DE1-3F80-82C0-74CD37782F2E.dita#GUID-3110DC70-6DE1-3F80-82C0-74CD37782F2E/GUID-141E1837-D913-39BE-9257-6CCEB40CE194"><apiname>TEntryKey::ESortByUid()</apiname></xref>  </p> </li>
<li id="GUID-A3D55FFF-A2D6-5644-8880-27A05A2F09E8"><p> <xref href="GUID-3110DC70-6DE1-3F80-82C0-74CD37782F2E.dita#GUID-3110DC70-6DE1-3F80-82C0-74CD37782F2E/GUID-0626B5FC-7CCC-3870-8594-30A1F5D20FD4"><apiname>TEntryKey::ESortByName()</apiname></xref>  </p> </li>
</ul> </entry>
</row>
<row>
<entry><p> <codeph>24</codeph>  </p> </entry>
<entry><p>This panic is raised by the <xref href="GUID-A6268E58-68EC-3041-93FD-5368CD230947.dita"><apiname>TParsePtr</apiname></xref> constructor
that takes a reference to a filename, when the name cannot be parsed. </p> </entry>
</row>
<row>
<entry><p> <codeph>25</codeph>  </p> </entry>
<entry><p>This panic is raised by the <xref href="GUID-C65BCDAB-0476-3EAC-9BFC-37243AE43FE9.dita"><apiname>TParsePtrC</apiname></xref> constructor
that takes a const reference to a filename, when the name cannot be parsed. </p> </entry>
</row>
<row>
<entry><p> <codeph>26</codeph>  </p> </entry>
<entry><p>This panic is raised by <xref href="GUID-E263C747-946F-35AA-9F1D-41833BD350FC.dita#GUID-E263C747-946F-35AA-9F1D-41833BD350FC/GUID-765B2E18-8062-3FF4-8E82-BBD54DC28EC9"><apiname>RFs::ReadFileSection()</apiname></xref> when
the specified number of bytes to be read from the file is greater than the
maximum length of the target descriptor. </p> </entry>
</row>
<row>
<entry><p> <codeph>27</codeph>  </p> </entry>
<entry><p> <i>This panic is raised in debug builds only.</i>  </p> <p>This
panic is raised by the <xref href="GUID-BE0804F6-4375-3C8A-8C83-968F510466E0.dita#GUID-BE0804F6-4375-3C8A-8C83-968F510466E0/GUID-DBEDBF4B-C944-3F9F-9F94-E5408745FD84"><apiname>RFile::Write(const                 TDesC8&amp;,TInt)</apiname></xref> variant
when the specified length is greater than the length of the source descriptor. </p> </entry>
</row>
</tbody>
</tgroup>
</table></conbody></concept>