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address_arbiter: Return by value from GetThreadsWaitingOnAddress()

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In all cases the vector being supplied is empty, so we can just return
by value in these instances.
This commit is contained in:
Lioncash 2018-08-05 16:24:43 -04:00
parent e06953626c
commit 7a77d0a71e
1 changed files with 15 additions and 15 deletions
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30
src/core/hle/kernel/address_arbiter.cpp
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@ -32,9 +32,8 @@ static ResultCode WaitForAddress(VAddr address, s64 timeout) {
}
// Gets the threads waiting on an address.
static void GetThreadsWaitingOnAddress(std::vector<SharedPtr<Thread>>& waiting_threads,
VAddr address) {
auto RetrieveWaitingThreads =
static std::vector<SharedPtr<Thread>> GetThreadsWaitingOnAddress(VAddr address) {
const auto RetrieveWaitingThreads =
[](size_t core_index, std::vector<SharedPtr<Thread>>& waiting_threads, VAddr arb_addr) {
const auto& scheduler = Core::System::GetInstance().Scheduler(core_index);
auto& thread_list = scheduler->GetThreadList();
@ -45,16 +44,20 @@ static void GetThreadsWaitingOnAddress(std::vector<SharedPtr<Thread>>& waiting_t
}
};
// Retrieve a list of all threads that are waiting for this address.
RetrieveWaitingThreads(0, waiting_threads, address);
RetrieveWaitingThreads(1, waiting_threads, address);
RetrieveWaitingThreads(2, waiting_threads, address);
RetrieveWaitingThreads(3, waiting_threads, address);
// Retrieve all threads that are waiting for this address.
std::vector<SharedPtr<Thread>> threads;
RetrieveWaitingThreads(0, threads, address);
RetrieveWaitingThreads(1, threads, address);
RetrieveWaitingThreads(2, threads, address);
RetrieveWaitingThreads(3, threads, address);
// Sort them by priority, such that the highest priority ones come first.
std::sort(waiting_threads.begin(), waiting_threads.end(),
std::sort(threads.begin(), threads.end(),
[](const SharedPtr<Thread>& lhs, const SharedPtr<Thread>& rhs) {
return lhs->current_priority < rhs->current_priority;
});
return threads;
}
// Wake up num_to_wake (or all) threads in a vector.
@ -76,9 +79,7 @@ static void WakeThreads(std::vector<SharedPtr<Thread>>& waiting_threads, s32 num
// Signals an address being waited on.
ResultCode SignalToAddress(VAddr address, s32 num_to_wake) {
// Get threads waiting on the address.
std::vector<SharedPtr<Thread>> waiting_threads;
GetThreadsWaitingOnAddress(waiting_threads, address);
std::vector<SharedPtr<Thread>> waiting_threads = GetThreadsWaitingOnAddress(address);
WakeThreads(waiting_threads, num_to_wake);
return RESULT_SUCCESS;
@ -110,12 +111,11 @@ ResultCode ModifyByWaitingCountAndSignalToAddressIfEqual(VAddr address, s32 valu
}
// Get threads waiting on the address.
std::vector<SharedPtr<Thread>> waiting_threads;
GetThreadsWaitingOnAddress(waiting_threads, address);
std::vector<SharedPtr<Thread>> waiting_threads = GetThreadsWaitingOnAddress(address);
// Determine the modified value depending on the waiting count.
s32 updated_value;
if (waiting_threads.size() == 0) {
if (waiting_threads.empty()) {
updated_value = value - 1;
} else if (num_to_wake <= 0 || waiting_threads.size() <= static_cast<u32>(num_to_wake)) {
updated_value = value + 1;