this would never work

datastore/threads/foreignbuffer.nim

@@ -1,76 +0,0 @@
-
-import std/locks
-
-type
-  ## Pass foreign buffers between threads.
-  ##
-  ## This is meant to be used as temporary holder
-  ## pointer to a foreign buffer that is being passed
-  ## between threads.
-  ##
-  ## The receiving thread should copy the contained buffer
-  ## to it's local GC as soon as possible. Should only be
-  ## used with refgc.
-  ##
-  ForeignBuff*[T] = object
-    lock: Lock
-    buf: ptr UncheckedArray[T]
-    len: int
-    cell: ForeignCell
-
-proc `=sink`[T](self: var ForeignBuff[T], b: ForeignBuff[T]) =
-  withLock(self.lock):
-    `=destroy`(self)
-    wasMoved(self)
-    self.len = b.len
-    self.buf = b.buf
-    self.cell = b.cell
-
-proc `=copy`[T](self: var ForeignBuff[T], b: ForeignBuff[T]) {.error.}
-
-proc `=destroy`[T](self: var ForeignBuff[T]) =
-  withLock(self.lock):
-    if self.cell.data != nil:
-      echo "DESTROYING CELL"
-      dispose self.cell
-
-proc len*[T](self: ForeignBuff[T]): int =
-  return self.len
-
-proc get*[T](self: ForeignBuff[T]): ptr UncheckedArray[T] =
-  self.buf
-
-proc attach*[T](
-  self: var ForeignBuff[T],
-  buf: openArray[T]) =
-  ## Attach self foreign pointer to this buffer
-  ##
-  withLock(self.lock):
-    self.buf = makeUncheckedArray[T](baseAddr buf)
-    self.len = buf.len
-    self.cell = protect(self.buf)
-
-func attached*[T]() =
-  ## Check if self foreign pointer is attached to this buffer
-  ##
-  withLock(self.lock):
-    return self.but != nil and self.cell.data != nil
-
-## NOTE: Converters might return copies of the buffer,
-## this should be overall safe since we want to copy
-## the buffer local GC anyway.
-converter toSeq*[T](self: ForeignBuff[T]): seq[T] | lent seq[T] =
-  @(self.buf.toOpenArray(0, self.len - 1))
-
-converter toString*[T](self: ForeignBuff[T]): string | lent string =
-  $(self.buf.toOpenArray(0, self.len - 1))
-
-converter getVal*[T](self: ForeignBuff[T]): ptr UncheckedArray[T] =
-  self.buf
-
-func init*[T](_: type ForeignBuff[T]): ForeignBuff[T] =
-  var
-    lock = Lock()
-
-  lock.initLock()
-  ForeignBuff[T](lock: lock)