fix windows compile error for directio pkg #275
Merged
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Signed-off-by: YangKeao yangkeao@chunibyo.icu
The directio pkg uses
unix.EINVAL
, which doesn't exit in windows. To support windows, I'd add a compilation flag and use the original directio directly.I also find that the errors returned in the darwin and openbsd is different with Linux. In Linux, it returns the return the EINVAL (directly by the system call). For darwin, it's a software defined "Failed to set F_NOCACHE: %s". The windows seems to be more complicated. As I don't have a Mac OS / Windows device, I left it here to return the result directly.
Actually, I'm not sure whether there are file systems like tmpfs which don't support direct io in Mac OS and other systems.