Hi Even, Long time no see!
On Fri, Jan 5, 2018 at 12:21 PM, Even Rouault <even.roua...@spatialys.com> wrote: > > 8) In the case discussed in 7), CPL_VSIL_CURL_NON_CACHED will just purge > > > the data from 1 the 3 caches: papsRegions. The vsil_cache and the disk > will > > > still cache the content. > > > > CPL_VSIL_CURL_NON_CACHED avoids the content of a file to be preserved in > the papsRegion cache when a file handle is closed and re-opened. And > VSICachedFile is only valid during the lifetime of the file handle. So I > don't think there's an issue there. Perhaps the naming > CPL_VSIL_CURL_NON_CACHED is a bit misleading: there's always some cache > (otherwise /vsicurl performance would be just too horrible), it is just > that it doesn't survive file closing. > > OK, I understand now the VSICachedFile lifecycle and it makes sense. But then the disk cache should not be used at all for files in the CPL_VSIL_CURL_NON_CACHED variable. I'll try to find some happy hacking time (or client funding, ideally) to improve the disk caching. What is the official GDAL procedure for PRs? I see a few in the github repo, but the doc says the source is located in SVN. Thanks.
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