On Tue, 23 Oct 2012 20:57:15 +0800 JALINDAR <jalindergat_at_gmail.com> wrote:
> My intention for going for download in one go is for firmware download from
> the server??

http://curl.haxx.se/libcurl/c/getinmemory.html

> On Mon, Oct 22, 2012 at 7:56 PM, Thorben Thuermer <r00t_at_constancy.org>wrote:
>
> > On Mon, 22 Oct 2012 19:12:00 +0800 JALINDAR <jalindergat_at_gmail.com> wrote:
> > > Hi Forum,
> > >
> > > I need to download file with size of 4MB. I have seen the
> > CURLOPT_WRITEFUNCTION
> > > function setting of curl handle. But it can download maximum of 100KB
> > data
> > > at once when
> > > CURLOPT_HEADER<
> > http://curl.haxx.se/libcurl/c/curl_easy_setopt.html#CURLOPTHEADER>is
> > > set to 1.
> > >
> > > How can I download large file in one go?
> > > <http://curl.haxx.se/libcurl/c/curl_easy_setopt.html#CURLOPTHEADER>
> >
> > why would you want to receive the files in one go?
> > the normal approach is to have the writefunction collect the data it
> > receives
> > until the transfer is done.
> > (for example by writing it to a file, or copying it to a memory buffer.)
> >
> > the only way to achieve what you want would be to increase the buffer size,
> > but alas:
> > "CURLOPT_BUFFERSIZE
> > Pass a long specifying your preferred size (in bytes) for the receive
> > buffer
> > in libcurl. The main point of this would be that the write callback gets
> > called
> > more often and with smaller chunks. This is just treated as a request, not
> > an
> > order. You cannot be guaranteed to actually get the given size. (Added in
> > 7.10)
> > This size is by default set as big as possible (CURL_MAX_WRITE_SIZE), so
> > it only
> > makes sense to use this option if you want it smaller."
> >
> > > *Thanks
> > > Jalindar
> >
> > - T.
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Received on 2012-10-23