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author | Subv <subv2112@gmail.com> | 2018-01-08 17:35:03 +0100 |
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committer | bunnei <bunneidev@gmail.com> | 2018-01-09 03:12:49 +0100 |
commit | 2a3f8e8484fca54767c9874cc21f5985d2be1463 (patch) | |
tree | 0976e02e0b495f07b11a51811618199d791d4c4e /src/core/hle | |
parent | cmake: Use LIBUNICORN_* on Windows. (diff) | |
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Diffstat (limited to 'src/core/hle')
-rw-r--r-- | src/core/hle/kernel/svc.cpp | 56 | ||||
-rw-r--r-- | src/core/hle/kernel/thread.cpp | 25 | ||||
-rw-r--r-- | src/core/hle/kernel/thread.h | 10 | ||||
-rw-r--r-- | src/core/hle/kernel/wait_object.cpp | 17 |
4 files changed, 78 insertions, 30 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index 74643f598..73793955a 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -120,17 +120,19 @@ static ResultCode GetProcessId(u32* process_id, Handle process_handle) { } /// Default thread wakeup callback for WaitSynchronization -static void DefaultThreadWakeupCallback(ThreadWakeupReason reason, SharedPtr<Thread> thread, - SharedPtr<WaitObject> object) { +static bool DefaultThreadWakeupCallback(ThreadWakeupReason reason, SharedPtr<Thread> thread, + SharedPtr<WaitObject> object, size_t index) { ASSERT(thread->status == THREADSTATUS_WAIT_SYNCH_ANY); if (reason == ThreadWakeupReason::Timeout) { thread->SetWaitSynchronizationResult(RESULT_TIMEOUT); - return; + return true; } ASSERT(reason == ThreadWakeupReason::Signal); thread->SetWaitSynchronizationResult(RESULT_SUCCESS); + + return true; }; /// Wait for a kernel object to synchronize, timeout after the specified nanoseconds @@ -499,20 +501,44 @@ static ResultCode WaitProcessWideKeyAtomic(VAddr mutex_addr, VAddr semaphore_add ASSERT(semaphore->available_count == 0); ASSERT(semaphore->mutex_addr == mutex_addr); - CASCADE_CODE(WaitSynchronization1( - semaphore, thread.get(), nano_seconds, - [mutex](ThreadWakeupReason reason, SharedPtr<Thread> thread, SharedPtr<WaitObject> object) { - ASSERT(thread->status == THREADSTATUS_WAIT_SYNCH_ANY); + auto wakeup_callback = [mutex, nano_seconds](ThreadWakeupReason reason, + SharedPtr<Thread> thread, + SharedPtr<WaitObject> object, size_t index) { + ASSERT(thread->status == THREADSTATUS_WAIT_SYNCH_ANY); + + if (reason == ThreadWakeupReason::Timeout) { + thread->SetWaitSynchronizationResult(RESULT_TIMEOUT); + return true; + } + + ASSERT(reason == ThreadWakeupReason::Signal); + + // Now try to acquire the mutex and don't resume if it's not available. + if (!mutex->ShouldWait(thread.get())) { + mutex->Acquire(thread.get()); + thread->SetWaitSynchronizationResult(RESULT_SUCCESS); + return true; + } - if (reason == ThreadWakeupReason::Timeout) { - thread->SetWaitSynchronizationResult(RESULT_TIMEOUT); - return; - } + if (nano_seconds == 0) { + thread->SetWaitSynchronizationResult(RESULT_TIMEOUT); + return true; + } + + thread->wait_objects = {mutex}; + mutex->AddWaitingThread(thread); + thread->status = THREADSTATUS_WAIT_SYNCH_ANY; + + // Create an event to wake the thread up after the + // specified nanosecond delay has passed + thread->WakeAfterDelay(nano_seconds); + thread->wakeup_callback = DefaultThreadWakeupCallback; + + Core::System::GetInstance().PrepareReschedule(); - ASSERT(reason == ThreadWakeupReason::Signal); - thread->SetWaitSynchronizationResult(WaitSynchronization1(mutex, thread.get())); - thread->SetWaitSynchronizationOutput(thread->GetWaitObjectIndex(object.get())); - })); + return false; + }; + CASCADE_CODE(WaitSynchronization1(semaphore, thread.get(), nano_seconds, wakeup_callback)); mutex->Release(thread.get()); diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp index f9d821a80..111c496b9 100644 --- a/src/core/hle/kernel/thread.cpp +++ b/src/core/hle/kernel/thread.cpp @@ -244,20 +244,23 @@ static void ThreadWakeupCallback(u64 thread_handle, int cycles_late) { return; } + bool resume = true; + if (thread->status == THREADSTATUS_WAIT_SYNCH_ANY || thread->status == THREADSTATUS_WAIT_SYNCH_ALL || thread->status == THREADSTATUS_WAIT_ARB) { - // Invoke the wakeup callback before clearing the wait objects - if (thread->wakeup_callback) - thread->wakeup_callback(ThreadWakeupReason::Timeout, thread, nullptr); - // Remove the thread from each of its waiting objects' waitlists for (auto& object : thread->wait_objects) object->RemoveWaitingThread(thread.get()); thread->wait_objects.clear(); + + // Invoke the wakeup callback before clearing the wait objects + if (thread->wakeup_callback) + resume = thread->wakeup_callback(ThreadWakeupReason::Timeout, thread, nullptr, 0); } - thread->ResumeFromWait(); + if (resume) + thread->ResumeFromWait(); } void Thread::WakeAfterDelay(s64 nanoseconds) { @@ -268,6 +271,10 @@ void Thread::WakeAfterDelay(s64 nanoseconds) { CoreTiming::ScheduleEvent(nsToCycles(nanoseconds), ThreadWakeupEventType, callback_handle); } +void Thread::CancelWakeupTimer() { + CoreTiming::UnscheduleEvent(ThreadWakeupEventType, callback_handle); +} + void Thread::ResumeFromWait() { ASSERT_MSG(wait_objects.empty(), "Thread is waking up while waiting for objects"); @@ -444,7 +451,8 @@ ResultVal<SharedPtr<Thread>> Thread::Create(std::string name, VAddr entry_point, // Map the page to the current process' address space. // TODO(Subv): Find the correct MemoryState for this region. vm_manager.MapMemoryBlock(Memory::TLS_AREA_VADDR + available_page * Memory::PAGE_SIZE, - linheap_memory, offset, Memory::PAGE_SIZE, MemoryState::ThreadLocalStorage); + linheap_memory, offset, Memory::PAGE_SIZE, + MemoryState::ThreadLocalStorage); } // Mark the slot as used @@ -501,7 +509,8 @@ SharedPtr<Thread> SetupMainThread(VAddr entry_point, u32 priority, SharedPtr<Thread> thread = std::move(thread_res).Unwrap(); // Register 1 must be a handle to the main thread - thread->guest_handle = Kernel::g_handle_table.Create(thread).Unwrap();; + thread->guest_handle = Kernel::g_handle_table.Create(thread).Unwrap(); + thread->context.cpu_registers[1] = thread->guest_handle; // Threads by default are dormant, wake up the main thread so it runs when the scheduler fires @@ -572,4 +581,4 @@ const std::vector<SharedPtr<Thread>>& GetThreadList() { return thread_list; } -} // namespace +} // namespace Kernel diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h index ed44ee933..19ba6e0af 100644 --- a/src/core/hle/kernel/thread.h +++ b/src/core/hle/kernel/thread.h @@ -128,6 +128,9 @@ public: */ void WakeAfterDelay(s64 nanoseconds); + /// Cancel any outstanding wakeup events for this thread + void CancelWakeupTimer(); + /** * Sets the result after the thread awakens (from either WaitSynchronization SVC) * @param result Value to set to the returned result @@ -218,8 +221,8 @@ public: /// Handle used as userdata to reference this object when inserting into the CoreTiming queue. Handle callback_handle; - using WakeupCallback = void(ThreadWakeupReason reason, SharedPtr<Thread> thread, - SharedPtr<WaitObject> object); + using WakeupCallback = bool(ThreadWakeupReason reason, SharedPtr<Thread> thread, + SharedPtr<WaitObject> object, size_t index); // Callback that will be invoked when the thread is resumed from a waiting state. If the thread // was waiting via WaitSynchronizationN then the object will be the last object that became // available. In case of a timeout, the object will be nullptr. @@ -237,7 +240,8 @@ private: * @param owner_process The parent process for the main thread * @return A shared pointer to the main thread */ -SharedPtr<Thread> SetupMainThread(VAddr entry_point, u32 priority, SharedPtr<Process> owner_process); +SharedPtr<Thread> SetupMainThread(VAddr entry_point, u32 priority, + SharedPtr<Process> owner_process); /** * Returns whether there are any threads that are ready to run. diff --git a/src/core/hle/kernel/wait_object.cpp b/src/core/hle/kernel/wait_object.cpp index c942a40fa..ec147b84c 100644 --- a/src/core/hle/kernel/wait_object.cpp +++ b/src/core/hle/kernel/wait_object.cpp @@ -68,6 +68,8 @@ SharedPtr<Thread> WaitObject::GetHighestPriorityReadyThread() { } void WaitObject::WakeupWaitingThread(SharedPtr<Thread> thread) { + ASSERT(!ShouldWait(thread.get())); + if (!thread) return; @@ -75,19 +77,26 @@ void WaitObject::WakeupWaitingThread(SharedPtr<Thread> thread) { Acquire(thread.get()); } else { for (auto& object : thread->wait_objects) { + ASSERT(!object->ShouldWait(thread.get())); object->Acquire(thread.get()); } } - // Invoke the wakeup callback before clearing the wait objects - if (thread->wakeup_callback) - thread->wakeup_callback(ThreadWakeupReason::Signal, thread, this); + size_t index = thread->GetWaitObjectIndex(this); for (auto& object : thread->wait_objects) object->RemoveWaitingThread(thread.get()); thread->wait_objects.clear(); - thread->ResumeFromWait(); + thread->CancelWakeupTimer(); + + bool resume = true; + + if (thread->wakeup_callback) + resume = thread->wakeup_callback(ThreadWakeupReason::Signal, thread, this, index); + + if (resume) + thread->ResumeFromWait(); } void WaitObject::WakeupAllWaitingThreads() { |