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https://issues.apache.org/jira/browse/CB-5790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13876048#comment-13876048
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Nicolas Leclerc commented on CB-5790:
-------------------------------------
I've finally written a possible fix for this:
https://github.com/nleclerc/cordova-plugin-file-transfer/tree/uploadmemoryfix
I'm quite confident with the logic but no so about the memory management (i'm
more of a java/js guy).
Actually i did manage to upload a 260MB file in debug mode from xcode but got a
crash when doing the same starting the app from my ipad.
I'm gonna need a crash course in ios memory management...
> iOS file-transfer plugin fails to upload large files (> 200MB)
> --------------------------------------------------------------
>
> Key: CB-5790
> URL: https://issues.apache.org/jira/browse/CB-5790
> Project: Apache Cordova
> Issue Type: Bug
> Components: iOS, Plugin File Transfer
> Affects Versions: 3.3.0
> Environment: iOS 7.0.4 on an non retina iPad mini and an iPad 3.
> Plugin v0.4.0
> Reporter: Nicolas Leclerc
>
> While trying to upload large video files (> 200MB) using the file-transfer
> plugin upload function, i get a FILE_NOT_FOUND_ERR error.
> Turns out the real error is as follows:
> {quote}
> Error opening file
> /var/mobile/Applications/1F3C6CCF-D37B-45C0-B6D2-839FA5F7C163/Documents/20140112214958-rally-vendome-aaa.session/vendome_aaa_mime_1.MOV:
> Error Domain=NSCocoaErrorDomain Code=256 "The operation couldn’t be
> completed. (Cocoa error 256.)" UserInfo=0x176ce440
> {NSFilePath=/var/mobile/Applications/1F3C6CCF-D37B-45C0-B6D2-839FA5F7C163/Documents/20140112214958-rally-vendome-aaa.session/vendome_aaa_mime_1.MOV,
> NSUnderlyingError=0x176cbac0 "The operation couldn’t be completed. *Cannot
> allocate memory*"}
> {quote}
> Smaller files work fine so it would seem that the whole content of the file
> is read into memory before uploading despite using the
> {{NSDataReadingMappedIfSafe}} option of NSData.
> I did find some reference to the fact that ios is indeed buffering the whole
> file into memory:
> * http://www.cimgf.com/2012/02/17/extending-nsdata-and-not-overriding-dealloc/
> *
> http://stackoverflow.com/questions/16787899/ios-load-large-file-use-memory-mapping-failed
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