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Kernel: Get rid of WaitTypes and simplify lots of code, removing hacks.

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This commit is contained in:
bunnei 2015-01-18 13:25:51 -05:00
parent 6deb1a0119
commit e5a9f1c644
9 changed files with 63 additions and 122 deletions
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65
src/core/hle/kernel/thread.cpp
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@ -22,14 +22,8 @@
namespace Kernel {
ResultVal<bool> Thread::Wait(bool wait_thread) {
const bool wait = status != THREADSTATUS_DORMANT;
if (wait && wait_thread) {
AddWaitingThread(GetCurrentThread());
WaitCurrentThread_WaitSynchronization(WAITTYPE_THREADEND, this);
}
return MakeResult<bool>(wait);
ResultVal<bool> Thread::Wait() {
return MakeResult<bool>(status != THREADSTATUS_DORMANT);
}
ResultVal<bool> Thread::Acquire() {
@ -68,7 +62,7 @@ static void ResetThread(Thread* t, u32 arg, s32 lowest_priority) {
if (t->current_priority < lowest_priority) {
t->current_priority = t->initial_priority;
}
t->wait_type = WAITTYPE_NONE;
t->wait_objects.clear();
t->wait_address = 0;
}
@ -89,23 +83,18 @@ static void ChangeReadyState(Thread* t, bool ready) {
}
}
/// Check if a thread is blocking on a specified wait type
static bool CheckWaitType(const Thread* thread, WaitType type) {
return (type == thread->wait_type) && (thread->IsWaiting());
}
/// Check if a thread is blocking on a specified wait type with a specified handle
static bool CheckWaitType(const Thread* thread, WaitType type, Object* wait_object) {
/// Check if a thread is blocking on a the specified object
static bool CheckWaitType(const Thread* thread, Object* wait_object) {
for (auto itr = thread->wait_objects.begin(); itr != thread->wait_objects.end(); ++itr) {
if (*itr == wait_object)
return CheckWaitType(thread, type);
return (thread->IsWaiting());
}
return false;
}
/// Check if a thread is blocking on a specified wait type with a specified handle and address
static bool CheckWaitType(const Thread* thread, WaitType type, Object* wait_object, VAddr wait_address) {
return CheckWaitType(thread, type, wait_object) && (wait_address == thread->wait_address);
/// Check if a thread is blocking on a the specified object and an address
static bool CheckWaitType(const Thread* thread, Object* wait_object, VAddr wait_address) {
return CheckWaitType(thread, wait_object) && (wait_address == thread->wait_address);
}
/// Stops the current thread
@ -118,7 +107,6 @@ void Thread::Stop(const char* reason) {
ReleaseAllWaitingThreads();
// Stopped threads are never waiting.
wait_type = WAITTYPE_NONE;
wait_objects.clear();
wait_address = 0;
}
@ -130,12 +118,6 @@ static void ChangeThreadState(Thread* t, ThreadStatus new_status) {
}
ChangeReadyState(t, (new_status & THREADSTATUS_READY) != 0);
t->status = new_status;
if (new_status == THREADSTATUS_WAIT) {
if (t->wait_type == WAITTYPE_NONE) {
LOG_ERROR(Kernel, "Waittype none not allowed");
}
}
}
/// Arbitrate the highest priority thread that is waiting
@ -145,7 +127,7 @@ Thread* ArbitrateHighestPriorityThread(WaitObject* arbiter, u32 address) {
// Iterate through threads, find highest priority thread that is waiting to be arbitrated...
for (auto& thread : thread_list) {
if (!CheckWaitType(thread.get(), WAITTYPE_ARB, arbiter, address))
if (!CheckWaitType(thread.get(), arbiter, address))
continue;
if (thread == nullptr)
@ -170,7 +152,7 @@ void ArbitrateAllThreads(WaitObject* arbiter, u32 address) {
// Iterate through threads, find highest priority thread that is waiting to be arbitrated...
for (auto& thread : thread_list) {
if (CheckWaitType(thread.get(), WAITTYPE_ARB, arbiter, address))
if (CheckWaitType(thread.get(), arbiter, address))
thread->ReleaseFromWait(arbiter);
}
}
@ -178,9 +160,6 @@ void ArbitrateAllThreads(WaitObject* arbiter, u32 address) {
/// Calls a thread by marking it as "ready" (note: will not actually execute until current thread yields)
static void CallThread(Thread* t) {
// Stop waiting
if (t->wait_type != WAITTYPE_NONE) {
t->wait_type = WAITTYPE_NONE;
}
ChangeThreadState(t, THREADSTATUS_READY);
}
@ -201,7 +180,6 @@ static void SwitchContext(Thread* t) {
current_thread = t;
ChangeReadyState(t, false);
t->status = (t->status | THREADSTATUS_RUNNING) & ~THREADSTATUS_READY;
t->wait_type = WAITTYPE_NONE;
Core::g_app_core->LoadContext(t->context);
} else {
current_thread = nullptr;
@ -224,23 +202,20 @@ static Thread* NextThread() {
return next;
}
void WaitCurrentThread(WaitType wait_type) {
void WaitCurrentThread() {
Thread* thread = GetCurrentThread();
thread->wait_type = wait_type;
ChangeThreadState(thread, ThreadStatus(THREADSTATUS_WAIT | (thread->status & THREADSTATUS_SUSPEND)));
}
void WaitCurrentThread_WaitSynchronization(WaitType wait_type, WaitObject* wait_object, unsigned index) {
void WaitCurrentThread_WaitSynchronization(WaitObject* wait_object, bool wait_all) {
Thread* thread = GetCurrentThread();
thread->wait_type = wait_type;
thread->wait_all = wait_all;
thread->wait_objects.push_back(wait_object);
ChangeThreadState(thread, ThreadStatus(THREADSTATUS_WAIT | (thread->status & THREADSTATUS_SUSPEND)));
}
void WaitCurrentThread_ArbitrateAddress(WaitObject* wait_object, VAddr wait_address) {
WaitCurrentThread_WaitSynchronization(WaitType::WAITTYPE_ARB, wait_object, 0);
WaitCurrentThread_WaitSynchronization(wait_object);
GetCurrentThread()->wait_address = wait_address;
}
@ -287,7 +262,7 @@ void Thread::ReleaseFromWait(WaitObject* wait_object) {
// Iterate through all waiting objects to check availability...
for (auto itr = wait_objects.begin(); itr != wait_objects.end(); ++itr) {
auto res = (*itr)->Wait(false);
auto res = (*itr)->Wait();
if (*res && res.Succeeded())
wait_all_failed = true;
@ -322,9 +297,8 @@ void Thread::ResumeFromWait() {
wait_object->RemoveWaitingThread(this);
wait_objects.clear();
wait_type = WAITTYPE_NONE;
wait_all = false;
if (!(status & (THREADSTATUS_WAITSUSPEND | THREADSTATUS_DORMANT | THREADSTATUS_DEAD))) {
ChangeReadyState(this, true);
}
@ -390,7 +364,6 @@ ResultVal<SharedPtr<Thread>> Thread::Create(std::string name, VAddr entry_point,
thread->stack_size = stack_size;
thread->initial_priority = thread->current_priority = priority;
thread->processor_id = processor_id;
thread->wait_type = WAITTYPE_NONE;
thread->wait_all = false;
thread->wait_objects.clear();
thread->wait_address = 0;
@ -476,8 +449,8 @@ void Reschedule() {
LOG_TRACE(Kernel, "cannot context switch from 0x%08X, no higher priority thread!", prev->GetHandle());
for (auto& thread : thread_list) {
LOG_TRACE(Kernel, "\thandle=0x%08X prio=0x%02X, status=0x%08X wait_type=0x%08X",
thread->GetHandle(), thread->current_priority, thread->status, thread->wait_type);
LOG_TRACE(Kernel, "\thandle=0x%08X prio=0x%02X, status=0x%08X", thread->GetHandle(),
thread->current_priority, thread->status);
}
}
}