<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def asyncWrite(self):
 """ A function to write files asynchronously to the job store such that subsequent jobs are not delayed by a long write operation. """

        try:
            while True:
                try:
                    # Block for up to two seconds waiting for a file
                    args = self.queue.get(timeout=2)
                except Empty:
                    # Check if termination event is signaled
                    # (set in the event of an exception in the worker)
                    if self._terminateEvent.isSet():
                        raise RuntimeError("The termination flag is set, exiting")
                    continue
                # Normal termination condition is getting None from queue
                if args is None:
                    break
                inputFileHandle, jobStoreFileID = args
                cachedFileName = self.encodedFileID(jobStoreFileID)
                # Ensure that the harbinger exists in the cache directory and that the PID
                # matches that of this writing thread.
                # If asyncWrite is ported to subprocesses instead of threads in the future,
                # insert logic here to securely overwrite the harbinger file.
                harbingerFile = self.HarbingerFile(self, cachedFileName=cachedFileName)
                assert harbingerFile.exists()
                assert harbingerFile.read() == int(os.getpid())
                # We pass in a fileHandle, rather than the file-name, in case
                # the file itself is deleted. The fileHandle itself should persist
                # while we maintain the open file handle
                with self.jobStore.updateFileStream(jobStoreFileID) as outputFileHandle:
                    shutil.copyfileobj(inputFileHandle, outputFileHandle)
                inputFileHandle.close()
                # Remove the file from the lock files
                with self._pendingFileWritesLock:
                    self._pendingFileWrites.remove(jobStoreFileID)
                # Remove the harbinger file
                harbingerFile.delete()
        except:
            self._terminateEvent.set()
            raise