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author | bunnei <bunneidev@gmail.com> | 2015-01-18 19:25:51 +0100 |
---|---|---|
committer | bunnei <bunneidev@gmail.com> | 2015-01-22 02:47:38 +0100 |
commit | e5a9f1c64483e01b7856c581ae5685d0c5ad88dc (patch) | |
tree | 6ab483afc7aa00bdcff51f0d6b7015b9edd5e5bf /src/core/hle/kernel/thread.cpp | |
parent | WaitSynchronizationN: Improved comments (diff) | |
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Diffstat (limited to 'src/core/hle/kernel/thread.cpp')
-rw-r--r-- | src/core/hle/kernel/thread.cpp | 65 |
1 files changed, 19 insertions, 46 deletions
diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp index 62b85f56a..601e0eb20 100644 --- a/src/core/hle/kernel/thread.cpp +++ b/src/core/hle/kernel/thread.cpp @@ -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); } } } |