diff options
Diffstat (limited to 'vendor/github.com/etcd-io/bbolt/bolt_unix_solaris.go')
-rw-r--r-- | vendor/github.com/etcd-io/bbolt/bolt_unix_solaris.go | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/vendor/github.com/etcd-io/bbolt/bolt_unix_solaris.go b/vendor/github.com/etcd-io/bbolt/bolt_unix_solaris.go deleted file mode 100644 index babad6578..000000000 --- a/vendor/github.com/etcd-io/bbolt/bolt_unix_solaris.go +++ /dev/null @@ -1,88 +0,0 @@ -package bbolt - -import ( - "fmt" - "syscall" - "time" - "unsafe" - - "golang.org/x/sys/unix" -) - -// flock acquires an advisory lock on a file descriptor. -func flock(db *DB, exclusive bool, timeout time.Duration) error { - var t time.Time - if timeout != 0 { - t = time.Now() - } - fd := db.file.Fd() - var lockType int16 - if exclusive { - lockType = syscall.F_WRLCK - } else { - lockType = syscall.F_RDLCK - } - for { - // Attempt to obtain an exclusive lock. - lock := syscall.Flock_t{Type: lockType} - err := syscall.FcntlFlock(fd, syscall.F_SETLK, &lock) - if err == nil { - return nil - } else if err != syscall.EAGAIN { - return err - } - - // If we timed out then return an error. - if timeout != 0 && time.Since(t) > timeout-flockRetryTimeout { - return ErrTimeout - } - - // Wait for a bit and try again. - time.Sleep(flockRetryTimeout) - } -} - -// funlock releases an advisory lock on a file descriptor. -func funlock(db *DB) error { - var lock syscall.Flock_t - lock.Start = 0 - lock.Len = 0 - lock.Type = syscall.F_UNLCK - lock.Whence = 0 - return syscall.FcntlFlock(uintptr(db.file.Fd()), syscall.F_SETLK, &lock) -} - -// mmap memory maps a DB's data file. -func mmap(db *DB, sz int) error { - // Map the data file to memory. - b, err := unix.Mmap(int(db.file.Fd()), 0, sz, syscall.PROT_READ, syscall.MAP_SHARED|db.MmapFlags) - if err != nil { - return err - } - - // Advise the kernel that the mmap is accessed randomly. - if err := unix.Madvise(b, syscall.MADV_RANDOM); err != nil { - return fmt.Errorf("madvise: %s", err) - } - - // Save the original byte slice and convert to a byte array pointer. - db.dataref = b - db.data = (*[maxMapSize]byte)(unsafe.Pointer(&b[0])) - db.datasz = sz - return nil -} - -// munmap unmaps a DB's data file from memory. -func munmap(db *DB) error { - // Ignore the unmap if we have no mapped data. - if db.dataref == nil { - return nil - } - - // Unmap using the original byte slice. - err := unix.Munmap(db.dataref) - db.dataref = nil - db.data = nil - db.datasz = 0 - return err -} |