Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-11-25 22:01:30 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Bug 1396982 Make imageCacheQueue use nsTArray instead of std::vector. r=tnikkel

Browse Source
This commit is contained in:
Ben Kelly 2017-09-05 16:20:18 -07:00
parent 437049b633
commit 35a2dafbcf
2 changed files with 17 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
image/imgLoader.cpp
View File

@ -975,31 +975,31 @@ using namespace std;
void
imgCacheQueue::Remove(imgCacheEntry* entry)
{
auto it = find(mQueue.begin(), mQueue.end(), entry);
if (it == mQueue.end()) {
uint64_t index = mQueue.IndexOf(entry);
if (index == queueContainer::NoIndex) {
return;
}
mSize -= (*it)->GetDataSize();
mSize -= mQueue[index]->GetDataSize();
// If the queue is clean and this is the first entry,
// then we can efficiently remove the entry without
// dirtying the sort order.
if (!IsDirty() && it == mQueue.begin()) {
if (!IsDirty() && index == 0) {
std::pop_heap(mQueue.begin(), mQueue.end(),
imgLoader::CompareCacheEntries);
mQueue.pop_back();
mQueue.RemoveElementAt(mQueue.Length() - 1);
return;
}
// Remove from the middle of the list. This potentially
// breaks the binary heap sort order.
mQueue.erase(it);
mQueue.RemoveElementAt(index);
// If we only have one entry or the queue is empty, though,
// then the sort order is still effectively good. Simply
// refresh the list to clear the dirty flag.
if (mQueue.size() <= 1) {
if (mQueue.Length() <= 1) {
Refresh();
return;
}
@ -1015,7 +1015,7 @@ imgCacheQueue::Push(imgCacheEntry* entry)
mSize += entry->GetDataSize();
RefPtr<imgCacheEntry> refptr(entry);
mQueue.push_back(refptr);
mQueue.AppendElement(Move(refptr));
// If we're not dirty already, then we can efficiently add this to the
// binary heap immediately. This is only O(log n).
if (!IsDirty()) {
@ -1026,16 +1026,16 @@ imgCacheQueue::Push(imgCacheEntry* entry)
already_AddRefed<imgCacheEntry>
imgCacheQueue::Pop()
{
if (mQueue.empty()) {
if (mQueue.IsEmpty()) {
return nullptr;
}
if (IsDirty()) {
Refresh();
}
RefPtr<imgCacheEntry> entry = mQueue[0];
std::pop_heap(mQueue.begin(), mQueue.end(), imgLoader::CompareCacheEntries);
mQueue.pop_back();
RefPtr<imgCacheEntry> entry = Move(mQueue.LastElement());
mQueue.RemoveElementAt(mQueue.Length() - 1);
mSize -= entry->GetDataSize();
return entry.forget();
@ -1065,7 +1065,7 @@ imgCacheQueue::IsDirty()
uint32_t
imgCacheQueue::GetNumElements() const
{
return mQueue.size();
return mQueue.Length();
}
imgCacheQueue::iterator
@ -2046,13 +2046,13 @@ imgLoader::EvictEntries(imgCacheQueue& aQueueToClear)
// We have to make a temporary, since RemoveFromCache removes the element
// from the queue, invalidating iterators.
nsTArray<RefPtr<imgCacheEntry> > entries(aQueueToClear.GetNumElements());
for (imgCacheQueue::const_iterator i = aQueueToClear.begin();
i != aQueueToClear.end(); ++i) {
for (auto i = aQueueToClear.begin(); i != aQueueToClear.end(); ++i) {
entries.AppendElement(*i);
}
for (uint32_t i = 0; i < entries.Length(); ++i) {
if (!RemoveFromCache(entries[i])) {
// Iterate in reverse order to minimize array copying.
for (auto& entry : entries) {
if (!RemoveFromCache(entry)) {
return NS_ERROR_FAILURE;
}
}

2
image/imgLoader.h
View File

@ -201,7 +201,7 @@ public:
uint32_t GetSize() const;
void UpdateSize(int32_t diff);
uint32_t GetNumElements() const;
typedef std::vector<RefPtr<imgCacheEntry> > queueContainer;
typedef nsTArray<RefPtr<imgCacheEntry> > queueContainer;
typedef queueContainer::iterator iterator;
typedef queueContainer::const_iterator const_iterator;