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am 80c96c29: am d2cc4273: Merge change 24825 into eclair

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Merge commit '80c96c29ff4f681be5a199936dfff5aa2eabee8b'

* commit '80c96c29ff4f681be5a199936dfff5aa2eabee8b':
  fix [2111536] [FAST BLOCKER] Device is soft rebooted after ending the call through voice dialer
This commit is contained in:
Mathias Agopian
2009-09-15 13:21:26 -07:00
committed by Android Git Automerger
parent 3da2e85305 80c96c29ff
commit 5d888b3db6
1 changed files with 22 additions and 3 deletions
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25
libs/ui/SharedBufferStack.cpp
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@@ -246,10 +246,30 @@ SharedBufferClient::SharedBufferClient(SharedClient* sharedClient,
int surface, int num)
: SharedBufferBase(sharedClient, surface, num), tail(0)
{
SharedBufferStack& stack( *mSharedStack );
int32_t avail;
int32_t head;
// we need to make sure we read available and head coherently,
// w.r.t RetireUpdate.
do {
avail = stack.available;
head = stack.head;
} while (stack.available != avail);
tail = head - avail + 1;
if (tail < 0) {
tail += num;
}
}
ssize_t SharedBufferClient::dequeue()
{
SharedBufferStack& stack( *mSharedStack );
if (stack.head == tail && stack.available == 2) {
LOGW("dequeue: tail=%d, head=%d, avail=%d, queued=%d",
tail, stack.head, stack.available, stack.queued);
}
//LOGD("[%d] about to dequeue a buffer",
// mSharedStack->identity);
DequeueCondition condition(this);
@@ -257,8 +277,6 @@ ssize_t SharedBufferClient::dequeue()
if (err != NO_ERROR)
return ssize_t(err);
SharedBufferStack& stack( *mSharedStack );
// NOTE: 'stack.available' is part of the conditions, however
// decrementing it, never changes any conditions, so we don't need
// to do this as part of an update.
@@ -270,6 +288,7 @@ ssize_t SharedBufferClient::dequeue()
tail = ((tail+1 >= mNumBuffers) ? 0 : tail+1);
LOGD_IF(DEBUG_ATOMICS, "dequeued=%d, tail=%d, %s",
dequeued, tail, dump("").string());
return dequeued;
}
@@ -326,7 +345,7 @@ ssize_t SharedBufferServer::retireAndLock()
{
RetireUpdate update(this, mNumBuffers);
ssize_t buf = updateCondition( update );
LOGD_IF(DEBUG_ATOMICS, "retire=%d, %s", int(buf), dump("").string());
LOGD_IF(DEBUG_ATOMICS && buf>=0, "retire=%d, %s", int(buf), dump("").string());
return buf;
}