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package fuse
// Go 1.9 introduces polling for file I/O. The implementation causes
// the runtime's epoll to take up the last GOMAXPROCS slot, and if
// that happens, we won't have any threads left to service FUSE's
// _OP_POLL request. Prevent this by forcing _OP_POLL to happen, so we
// can say ENOSYS and prevent further _OP_POLL requests.
const pollHackName = ".go-fuse-epoll-hack"
const pollHackInode = ^uint64(0)
func doPollHackLookup(ms *Server, req *request) {
switch req.inHeader.Opcode {
case _OP_CREATE:
out := (*CreateOut)(req.outData())
out.EntryOut = EntryOut{
NodeId: pollHackInode,
Attr: Attr{
Ino: pollHackInode,
Mode: S_IFREG | 0644,
Nlink: 1,
},
}
out.OpenOut = OpenOut{
Fh: pollHackInode,
}
req.status = OK
case _OP_LOOKUP:
out := (*EntryOut)(req.outData())
*out = EntryOut{}
req.status = ENOENT
default:
req.status = EIO
}
}
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