On 8 Apr., 15:52, "Red_Serra...@hotmail.de"
wrote:
> Hello,
> I'm reading the body of an email asynchronously, which works fine for
> smaller emails. I'm using the solution from here:http://groups.google.com/group/mozil...rowse_thread/t...
> to get the finaldata. However with emails with big attachments it
> didn't read out everything. The finaldata is missing the last part
> then. Here how it is:
> {
> * * * *...
> * * * *if (msg_stream._finaldata){
> * * * * * * * *export_email(msg_stream._finaldata, msg_stream._email,
> msg_stream._session);
> * * * *}else{
> * * * * * * * *msg_stream._callback = export_email;
> * * * *}
>
> }
>
> //msg_stream is of type async_stream
> async_stream = function(){
> * * * var listener = {
> * * * * * * * * * * * * _first: true,
> * * * * * * * * * * * * _data: null,
> * * * * * * * * * * * * _callback: null,
> * * * * * * * * * * * * _finaldata: null,
> * * * * * * * * * * * * _email: null,
> * * * * * * * * * * * * _session: null,
>
> * * * * * * QueryInterface : function(iid){
> * * * * * * * * ...
> * * * * * * },
>
> * * * * * * onStartRequest : function(aRequest, aContext){
> * * * * * * * * ...
> * * * * * * },
>
> * * * * * * onStopRequest : function(aRequest, aContext, aStatusCode)
> {
> * * * * * * * * * * * * this._finaldata = this._data;
> * * * * * * * * * * * *log(this._finaldata);
> * * * * * * * * * * * * if (this._callback){
> * * * * * * * * * * * * * * * * this._callback
> (this._finaldata,this._email,this._session);
> * * * * * * * * * * * * }
> * * * * * * },
>
> * * * * * * onDataAvailable : function (aRequest, aContext,
> aInputStream, aOffset, aCount){
> * * * * * * * * * * * * * * * * var bin_input_stream = Components.classes["@mozilla.org/
> binaryinputstream;1"].createInstance
> (Components.interfaces.nsIBinaryInputStream);
> * * * * * * * * * * * * * * * * bin_input_stream.setInputStream(aInputStream);
> * * * * * * * * * * * * * * * * if(this._first){
> * * * * * * * * * * * * * * * * * * * * this._data = bin_input_stream.readBytes(bin_input_stream.availa ble
> ());
> * * * * * * * * * * * * * * * * * * * * this._first = false;
> * * * * * * * * * * * * * * * * }else{
> * * * * * * * * * * * * * * * * * * * * this._data += bin_input_stream.readBytes
> (bin_input_stream.available());
> * * * * * * * * * * * * * * * * * * * * bin_input_stream.close();
> * * * * * * * * * * * * * * * * }
> * * * * * * * * * * * * },
> * * * * * * * * };
> * * * * * * * * return listener;
>
> }
>
> I looked on how long the finaldata is, when it's in onStopRequest and
> it is exactly 131072 long. I tried it with 3 different mails and it
> was always the same length. Why does it stop at 131072?? Or is that
> just accidental?
>
> Athttp://groups.google.com/group/mozilla.dev.tech.network/browse_thread....
> someone said "That function is called once all the data from the
> connection has been sent to the listener." Does that mean that, if
> onDataAvailable is finished and not called again, then onStopRequest
> is called? That's how I thought the listener works so far, but now I'm
> not so sure anymore...
>
> Any links/explanations/suggestions are greatly appreciated.
>
> Greetings,
> Serratia

BTW: reason for stopping (aka aStatusCode in OnStopRequest) was always
0, regardless whether all was read or end was missing.

Also in one email which had 5 pdfs as attachments, after the whole
process of reading/etc. the attachments have disappeared. Since if the
reading is done synchronously this emails works fine, it has to do
something with the asynchronous reading. Not sure what though...