a simple url shortener in Go (check it out at qurl.org)
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package bbolt
import ( "syscall" "unsafe" )
const ( msAsync = 1 << iota // perform asynchronous writes
msSync // perform synchronous writes
msInvalidate // invalidate cached data
)
func msync(db *DB) error { _, _, errno := syscall.Syscall(syscall.SYS_MSYNC, uintptr(unsafe.Pointer(db.data)), uintptr(db.datasz), msInvalidate) if errno != 0 { return errno } return nil }
func fdatasync(db *DB) error { if db.data != nil { return msync(db) } return db.file.Sync() }
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