How would you handle the downloading of large amount of data?

[moster67]

How would you handle the downloading of large amount of data?

When connecting to a POP3-server using telnet and downloading attachments on my device, I get a after a while (after having received 300-400KB) OutOfMemoryExceptions. Nothing strange about that but since Outlook for PocketPC can handle attachments up to 3-4MB, there must be a way to do it!

I think I need to take the content of the buffer and write/save it in a file on storage, then I must empty the buffer and start all over again. Is this the best procedure? Any other ways of doing it? Some pseudo-code showing how to do it would be great.

rgds,
moster67

 

[moster67]

Sorry for not writing clear enough. No - Pocket Outlook works nicely.

The problem is my code. I wanted to try out POP3 (using telnet and socket) and download my e-mails and attachments from my provider's mail-server. I have no problems connecting with my code (on my device) to the POP3-server and downloading relative headers and the text containing the e-mails and the attachments.

As long as I am downloading single e-mails or e-mails with small attachemnts (up to 150KB), I have no particular problems. The problem is when I need to download large amount of data (300KB and more) - then I get OutOfMemoryExceptions.

I guess that Pocket Outlook, when downloading a file of 3-4MB, retrieves the data in chunks in view of the huge amount of data it must handle and the risk of OutOfMemoryExceptions. So if Pocket Outlook can do this, I guess that I can also do it. That's why I asked if anyone could post some pseudocode for retrieving data in chunks using a socket-connection.

Thanks.

Hi,

Quick questions. You say you are using Outlook for PocketPC to download attachments but its not working (Outofmemory error).

 

[Erel]

See this example: http://www.b4x.com/files/FileTransfer.zip