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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CB-7109) exec() call to plugin blocked the main thread
Date Tue, 17 Mar 2015 17:06:39 GMT

    [ https://issues.apache.org/jira/browse/CB-7109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14365538#comment-14365538
] 

ASF subversion and git services commented on CB-7109:
-----------------------------------------------------

Commit 7a849795e139c2af770986f5672b7a291ce84752 in cordova-plugin-file's branch refs/heads/master
from [~iclelland]
[ https://git-wip-us.apache.org/repos/asf?p=cordova-plugin-file.git;h=7a84979 ]

CB-7109 android: Parse arguments off of the main thread (close #97)


> exec() call to plugin blocked the main thread
> ---------------------------------------------
>
>                 Key: CB-7109
>                 URL: https://issues.apache.org/jira/browse/CB-7109
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: Android, Plugin File
>    Affects Versions: 3.5.0
>            Reporter: Rajesh Kumar
>            Priority: Minor
>
> In the file plugin of v3.5.0, I constantly see a warning in logcat in eclipse when I
try to write to a file. The warning is:
> THREAD WARNING: exec() call to File.write blocked the main thread for 117ms. Plugin should
use CordovaInterface.getThreadPool().
> Similar issue is when I try to exit app. I guess this issue is present for all the plugins.
I checked the part of File plugin code:
> final String fname=args.getString(0);
>             final String data=args.getString(1);
>             final int offset=args.getInt(2);
>             final Boolean isBinary=args.getBoolean(3);
>             threadhelper( new FileOp( ){
>                 public void run() throws FileNotFoundException, IOException, NoModificationAllowedException
{
>                     long fileSize = write(fname, data, offset, isBinary);
>                     callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK,
fileSize));
>                 }
>             }, callbackContext);
> And, threadhelper uses: 
> cordova.getThreadPool().execute(new Runnable() {
>     public void run() {}
> });
> This means, the plugin is using a thread to do some async task, but logcat throws the
block warning. We need to fix this.



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