commit d51329eca85112973867a6bf0d210e82d6d1c411
author Eric Laurent <elaurent@google.com> Fri Jun 30 16:06:16 2017 -0700
committer Eric Laurent <elaurent@google.com> Sun Jul 02 00:32:10 2017 +0000
tree f29ad645223b5ea22b709f4d3362f27aa14d6a9a
parent 4501b3510f9b2af2ff63a0471de24e3feea1d0a8

aaudio: enable exclusive MMAP mode support

Allow exclusive MMAP mode only if the HAL indicates
that the FD returned for shared memory buffer can be shared
with any application.

NOTE: the way the HAL indicates this is temporary until the audio
HAL is modified in next HIDL release.

Bug: 37167970
Test: check playback and capture in mmap exclusive and shared mode
Change-Id: I09c1461b2f99532ded2ef9d36d483b82096fda68

services/oboeservice/AAudioService.cpp

diff --git a/services/oboeservice/AAudioService.cpp b/services/oboeservice/AAudioService.cpp
index cfcfb11..8f89051 100644
--- a/services/oboeservice/AAudioService.cpp
+++ b/services/oboeservice/AAudioService.cpp
@@ -107,7 +107,7 @@
     }
 
     if (sharingMode == AAUDIO_SHARING_MODE_EXCLUSIVE) {
-        serviceStream = new AAudioServiceStreamMMAP();
+        serviceStream = new AAudioServiceStreamMMAP(mCachedUserId);
         result = serviceStream->open(request, configurationOutput);
         if (result != AAUDIO_OK) {
             // fall back to using a shared stream