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Basic hacky SetAffinity.

This commit is contained in:
Ben Vanik 2014-10-28 22:10:40 -07:00
parent 3daf362dfe
commit 1566b4c890
2 changed files with 18 additions and 2 deletions
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2
src/poly/threading.h
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@ -23,6 +23,8 @@ namespace threading {
// Gets the current high-performance tick count. // Gets the current high-performance tick count.
uint64_t ticks(); uint64_t ticks();
// TODO(benvanik): processor info API.
// Gets a stable thread-specific ID, but may not be. Use for informative // Gets a stable thread-specific ID, but may not be. Use for informative
// purposes only. // purposes only.
uint32_t current_thread_id(); uint32_t current_thread_id();

18
src/xenia/kernel/objects/xthread.cc
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@ -478,8 +478,22 @@ void XThread::SetPriority(int32_t increment) {
} }
void XThread::SetAffinity(uint32_t affinity) { void XThread::SetAffinity(uint32_t affinity) {
// TODO(benvanik): implement. // Affinity mask, as in SetThreadAffinityMask.
XELOGW("KeSetAffinityThread not implemented"); // Xbox thread IDs:
// 0 - core 0, thread 0 - user
// 1 - core 0, thread 1 - user
// 2 - core 1, thread 0 - sometimes xcontent
// 3 - core 1, thread 1 - user
// 4 - core 2, thread 0 - xaudio
// 5 - core 2, thread 1 - user
// TODO(benvanik): implement better thread distribution.
// NOTE: these are logical processors, not physical processors or cores.
SYSTEM_INFO system_info;
GetSystemInfo(&system_info);
if (system_info.dwNumberOfProcessors < 6) {
XELOGW("Too few processors - scheduling will be wonky");
}
SetThreadAffinityMask(::GetCurrentThread(), affinity);
} }
X_STATUS XThread::Resume(uint32_t* out_suspend_count) { X_STATUS XThread::Resume(uint32_t* out_suspend_count) {