id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	launchpad_bug
637	"support ""keep this much disk space free"" on Windows as well as other platforms"	zooko	zooko	"This patch [changeset:2e45619844cb7c36] makes it so that if we don't know how to find out the free disk space on a platform, we fall back gracefully by display something like ""I dunno"" instead of the free disk space.  We also already have code (before that patch) which falls back gracefully in the sense of emitting a warning at startup if the {{{reserved_space}}} feature has been configured (see [src:doc/configuration.txt]) and the current platform can't figure out how much free disk space it has.

However, rather than having such fallbacks, I would really rather just ensure that Tahoe figures out how much free disk space it has on all supported platforms.  For Windows (the only platform which currently does not work using {{{statvfs}}}), the way to do that is to require {{{pywin32}}}, {{{import win32api}}}, and call {{{win32api.GetDiskFreeSpaceEx()}}}

http://docs.activestate.com/activepython/2.5/pywin32/win32api__GetDiskFreeSpaceEx_meth.html
http://msdn.microsoft.com/en-us/library/aa364937(VS.85).aspx

Careful, don't call {{{win32api.GetDiskFreeSpace()}}} -- that's an old function that predates disks with more than 2^32^ bytes:
http://msdn.microsoft.com/en-us/library/aa364935.aspx"	defect	closed	major	1.6.0	code-storage	1.3.0	fixed	win32 easy reviewed news-done	tahoe-dev@… kevan@…