lux/citra
1
0
Fork 0
mirror of https://git.h3cjp.net/H3cJP/citra.git synced 2024-12-29 06:36:41 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #3173 from yuzu-emu/bunnei-spscqueue

Browse source 
common: SPSCQueue: Notify after incrementing queue size.
This commit is contained in:
bunnei 2019-12-17 14:11:20 -05:00 committed by GitHub
parent 65b1b05e05 67b8ecc73e
commit 8825b88a45
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 9 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
src/common/threadsafe_queue.h
View file

@ -46,9 +46,16 @@ public:
ElementPtr* new_ptr = new ElementPtr();
write_ptr->next.store(new_ptr, std::memory_order_release);
write_ptr = new_ptr;
cv.notify_one();
++size;
const size_t previous_size{size++};
// Acquire the mutex and then immediately release it as a fence.
// TODO(bunnei): This can be replaced with C++20 waitable atomics when properly supported.
// See discussion on https://github.com/yuzu-emu/yuzu/pull/3173 for details.
if (previous_size == 0) {
std::lock_guard lock{cv_mutex};
}
cv.notify_one();
}
void Pop() {