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Scheduler refactor Pt. 1

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* Simplifies scheduling logic, specifically regarding thread status. It should be much clearer which statuses are valid
for a thread at any given point in the system.
* Removes dead code from thread.cpp.
* Moves the implementation of resetting a ThreadContext to the corresponding core's implementation.

Other changes:
* Fixed comments in arm interfaces.
* Updated comments in thread.cpp
* Removed confusing, useless, functions like MakeReady() and ChangeStatus() from thread.cpp.
* Removed stack_size from Thread. In the CTR kernel, the thread's stack would be allocated before thread creation.
This commit is contained in:
Kevin Hartman 2015-01-25 22:56:17 -08:00
parent 848795f383
commit 5fcbfc06eb
7 changed files with 289 additions and 286 deletions
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14
src/core/hle/svc.cpp
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@ -150,7 +150,7 @@ static ResultCode WaitSynchronization1(Handle handle, s64 nano_seconds) {
if (object->ShouldWait()) {
object->AddWaitingThread(Kernel::GetCurrentThread());
Kernel::WaitCurrentThread_WaitSynchronization(object, false, false);
Kernel::WaitCurrentThread_WaitSynchronization({ object }, false, false);
// Create an event to wake the thread up after the specified nanosecond delay has passed
Kernel::GetCurrentThread()->WakeAfterDelay(nano_seconds);
@ -212,7 +212,6 @@ static ResultCode WaitSynchronizationN(s32* out, Handle* handles, s32 handle_cou
// NOTE: This should deadlock the current thread if no timeout was specified
if (!wait_all) {
wait_thread = true;
Kernel::WaitCurrentThread_WaitSynchronization(nullptr, true, wait_all);
}
}
@ -222,12 +221,17 @@ static ResultCode WaitSynchronizationN(s32* out, Handle* handles, s32 handle_cou
if (wait_thread) {
// Actually wait the current thread on each object if we decided to wait...
std::vector<SharedPtr<Kernel::WaitObject>> wait_objects;
wait_objects.reserve(handle_count);
for (int i = 0; i < handle_count; ++i) {
auto object = Kernel::g_handle_table.GetWaitObject(handles[i]);
object->AddWaitingThread(Kernel::GetCurrentThread());
Kernel::WaitCurrentThread_WaitSynchronization(object, true, wait_all);
wait_objects.push_back(object);
}
Kernel::WaitCurrentThread_WaitSynchronization(std::move(wait_objects), true, wait_all);
// Create an event to wake the thread up after the specified nanosecond delay has passed
Kernel::GetCurrentThread()->WakeAfterDelay(nano_seconds);
@ -319,7 +323,7 @@ static ResultCode CreateThread(u32* out_handle, u32 priority, u32 entry_point, u
}
CASCADE_RESULT(SharedPtr<Thread> thread, Kernel::Thread::Create(
name, entry_point, priority, arg, processor_id, stack_top, Kernel::DEFAULT_STACK_SIZE));
name, entry_point, priority, arg, processor_id, stack_top));
CASCADE_RESULT(*out_handle, Kernel::g_handle_table.Create(std::move(thread)));
LOG_TRACE(Kernel_SVC, "called entrypoint=0x%08X (%s), arg=0x%08X, stacktop=0x%08X, "
@ -338,7 +342,7 @@ static ResultCode CreateThread(u32* out_handle, u32 priority, u32 entry_point, u
static void ExitThread() {
LOG_TRACE(Kernel_SVC, "called, pc=0x%08X", Core::g_app_core->GetPC());
Kernel::GetCurrentThread()->Stop(__func__);
Kernel::GetCurrentThread()->Stop();
HLE::Reschedule(__func__);
}