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audiohal: Add diagnostic message to check the number of bytes written

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Temporary change for investigating b/35813113. Need to test
the hypothesis that sometimes either legacy HAL, or the wrapper
reports more bytes written than being asked for.

Bug: 35813113
Change-Id: I6596403e0ddcdcc8b061d1977e329f67670f30db
Test: make
This commit is contained in:
Mikhail Naganov 2017-02-28 09:12:19 -08:00
parent bdef4b98da
commit 8d391c8eed
1 changed files with 4 additions and 0 deletions
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4
audio/2.0/default/StreamOut.cpp
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@ -79,6 +79,10 @@ void WriteThread::doWrite() {
ssize_t writeResult = mStream->write(mStream, &mBuffer[0], availToRead);
if (writeResult >= 0) {
mStatus.reply.written = writeResult;
// Diagnostics of the cause of b/35813113.
ALOGE_IF(writeResult > availToRead,
"legacy hal reports more bytes written than asked for: %lld > %lld",
(long long)writeResult, (long long)availToRead);
} else {
mStatus.retval = Stream::analyzeStatus("write", writeResult);
}