tree 90b289d03a4aded4f7da35dfaee40c09a1dc27f8
parent 169ab531ca6bb2f43ed18fe2b03f66c808f12b81
author Jeff Sharkey <jsharkey@android.com> 1351124312 -0700
committer Jeff Sharkey <jsharkey@android.com> 1351125186 -0700

Better sanity checking for finished downloads.

Downloads in the RUNNING state are considered ready to start so that
downloads are correctly resumed when the process crashes. However,
this causes a race condition while UpdateThread is processing a
Cursor when a DownloadThread finishes.

With this change, DownloadThread now skips requests for downloads
already marked as finished. Apps listening for the DOWNLOAD_COMPLETE
broadcast will no longer see data mutated by the second thread, and
will not see the broadcast duplicated.

Bug: 6948938, 6970458, 6818900
Change-Id: I35deac3cedbfe7f50091fab5818d85594dba558c