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Add notes to KtxStorage::maybeOpenFile

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Ryan Huffman 2017-05-19 11:11:00 -07:00
parent eb9acad42e
commit c36b85bb05
1 changed files with 5 additions and 0 deletions
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5
libraries/gpu/src/gpu/Texture_ktx.cpp
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@ -184,6 +184,11 @@ KtxStorage::KtxStorage(const std::string& filename) : _filename(filename) {
} }
std::shared_ptr<storage::FileStorage> KtxStorage::maybeOpenFile() const { std::shared_ptr<storage::FileStorage> KtxStorage::maybeOpenFile() const {
// 1. Try to get the shared ptr
// 2. If it doesn't exist, grab the mutex around its creation
// 3. If it was created before we got the mutex, return it
// 4. Otherwise, create it
std::shared_ptr<storage::FileStorage> file = _cacheFile.lock(); std::shared_ptr<storage::FileStorage> file = _cacheFile.lock();
if (file) { if (file) {
return file; return file;