Shuqian Ying created CB-10164:
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Summary: Allow seeking beyond current data end of a file
Key: CB-10164
URL: https://issues.apache.org/jira/browse/CB-10164
Project: Apache Cordova
Issue Type: Improvement
Components: Plugin File
Reporter: Shuqian Ying
The plugin does not allow seeking beyond the current length of a file using the
following code the enforce it:
if (offset > this.length) {
this.position = this.length;
}
in the FileWriter.js file.
We found this to cause a lot of issues in random access concurrent write
application scenarios since it modifies the semantics of seek silently that may
cause file corruption without informing the client what went wrong. Our
application behaves correctly after removing such a restriction.
We belief that such a restriction should be removed since file systems in most
underlying OSs allow seeking beyond the current data end of a file (like
Windows and *nix family of OSs), it's a POSIX.1 standard, adding a restriction
on top of them does not make sense. If such a restriction is required, it maybe
is better to throw an exception instead of "decide what to do for the client".
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