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| author | Dave Sparks <davidsparks@android.com> | 2009-11-10 17:08:08 -0800 |
|---|---|---|
| committer | Dave Sparks <davidsparks@android.com> | 2009-11-10 17:08:08 -0800 |
| commit | ff0f38e6fe2402b1320bc5faeea3f7bec27a3a94 (patch) | |
| tree | a9acd18ab5526d297928f96c094ca22eaa33e593 /opengl/tests/gl_basic/gl_basic.cpp | |
| parent | 3bde289d23935c1138a73874999278d822b36b3c (diff) | |
Fix potential deadlock in stopPreview/stopRecord.
Some camera HALs spin up a preview thread and need to wait for
the thread to exit. This can create a potential deadlock. In
stopPreview, we take the main lock. If a preview callback occurs
while the lock is held, the preview thread will block. If the
camera HAL is waiting for the preview thread to exit, this will
cause a deadlock.
This patch breaks out the preview buffer heap into a separate
mutex. This mutex is never held when the main lock is held, thus
preventing the deadlock from occuring.
Diffstat (limited to 'opengl/tests/gl_basic/gl_basic.cpp')
0 files changed, 0 insertions, 0 deletions