On 29 May 2014 12:56 AM, "Wagner Patriota" <wagner.patri...@gmail.com> wrote: > > I can't fsync() a FILE* ... does anybody have any hint on what can be done here?
Try flush() or fflush()? > On Wed, May 28, 2014 at 7:36 PM, Wagner Patriota < wagner.patri...@gmail.com> wrote: >> >> hey Daniel / Ray, I think I found the solution. I didn't try yet, but for sure it is related. >> http://www.pointsoftware.ch/en/4-ext4-vs-ext3-filesystem-and-why-delayed-allocation-is-bad/ >> >> My cURL code is fine. The detail is that I write the file as a .tmp file and then I rename the file. >> This fast rename is responsible for the losing of data. >> >> I need do a fsync() before every rename... have you guys seen this before? >> >> Thanks for attention. >> >> >> On Sat, May 24, 2014 at 1:07 PM, Wagner Patriota < wagner.patri...@gmail.com> wrote: >>> >>> On Sat, May 24, 2014 at 12:23 PM, Daniel Stenberg <dan...@haxx.se> wrote: >>>> >>>> On Fri, 23 May 2014, Wagner Patriota wrote: >>>> >>>>> I noticed I didn't check if the file handle is actually valid. Now I fixed and I will test a little more... [in bold] But I really don't think it's the error, once the file it's supposed to write on is a *completely new path*, almost impossible the file handle not be valid. >>>> >>>> >>>> That wouldn't have been a likely problem anyway. A bad file handle would not suddently cause zeroes to get written after 94KB. >>> >>> >>> Yes, sure. And I confirm this problem is still happening... randomly... another detail is that the number of null bytes is 94208 but each time a new number of null bytes... now I just got 159728. >>> >>>> >>>> >>>> Your example looks pretty much like what curl the command line tool does. Does invoking curl on that URL cause the same problem? >>> >>> >>> I tried... via command line it works. My applications downloads hundreds of pictures by hour. It happens very seldom. But I never saw it happening on Windows or Mac, only on Ubuntu. >>> >>>> >>>> >>>> >>>> -- >>>> >>>> / daniel.haxx.se >>>> ------------------------------------------------------------------- >>>> List admin: http://cool.haxx.se/list/listinfo/curl-library >>>> Etiquette: http://curl.haxx.se/mail/etiquette.html >>> >>> >> > > > ------------------------------------------------------------------- > List admin: http://cool.haxx.se/list/listinfo/curl-library > Etiquette: http://curl.haxx.se/mail/etiquette.html
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