d443d10a1a95b3020cba24b0940b3e1ea3e8ce7d |
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01-Dec-2016 |
Neil Fuller <nfuller@google.com> |
Boundary checks / synchronization / tests for MemoryMappedFile Hardening MemoryMappedFile against boundary conditions and edge cases. Many tests added. Thread safety has been dropped entirely as part of this change: expected usage is single threaded. It was previously possible to unmap the file, but the BufferIterator would carry on attempting to read from the address space. Motivation: The ZoneInfoDB code will soon be modified to expect exceptions if reads / writes are out of bounds and it's more appropriate to make the exceptions part of the MemoryMappedFile contract. Bug: 31008728 Test: CtsLibcoreTestCases Change-Id: I58cba7498c5fcd074054b13dbd6b313d6c1bfbe6
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