Eric Baldeschwieler wrote:
Instead, I think we need the following two functions:
tOffset getBlockSize(dfsFs fs);
char** geHosts(dfsFs fs, char* file, tOffset pos);
** Think your suggestion is good. An addition... I'd rather not assume
that block size is global. Why not require a file name in the
getBlockSize call? This may prove more future proof.
Good idea. To be fully future-proof, this could even become:
tOffset* getBlockStarts(dfsFs fs, char* file);
That would permit variable sized-blocks, which could happen, e.g., if we
someday support appending to files. Is that overkill?
** Why not wait on the dfsCopy/Move type commands? These can be
implemented via a systems call to a commandline tool already, right?
Sure, but applications frequently call these too, so it's nice to make
them easily available to C applications. At some point they'll get
written in C: better to have them in one place than in every
application. But, you're right, they're not essential.
Doug
