tree c8287d527ffb1f72ae2bdb74e6ade800bce58ad9
parent 5b65c9f715a02b08e44d20b88657fbae8d22351f
author Primiano Tucci <primiano@google.com> 1517267444 +0000
committer Primiano Tucci <primiano@google.com> 1517267444 +0000

Send shared memory update IPC synchronously when stalling

This is a workaround to reduce the likeliness of hanging
indefinitely when a producer ends up in a stalling state
because there are no more free pages in the buffer.
In this case, the behavior prior to this CL, would cause
the message loop to just hang in the for(;;) loop of
SharedMemoryArbiterImpl without never sending the IPC
(which is posted in a future task) that tells the service
to drain the shared memory buffer (SMB), hence never
getting out of the SMB-full situation.

Change-Id: Ifdc9725d362d4c1f8ab5d1fcbcc89650a6ca4c34