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Merge pull request #2416 from lioncash/wait

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kernel/svc: Clean up wait synchronization related functionality
This commit is contained in:
bunnei
2019-04-24 22:56:08 -04:00
committed by GitHub
parent 94db649205 c268ffd831
commit 78574e7a47
7 changed files with 54 additions and 51 deletions
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40
src/core/hle/kernel/thread.h
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@ -49,8 +49,7 @@ enum class ThreadStatus {
WaitHLEEvent, ///< Waiting for hle event to finish
WaitSleep, ///< Waiting due to a SleepThread SVC
WaitIPC, ///< Waiting for the reply from an IPC request
WaitSynchAny, ///< Waiting due to WaitSynch1 or WaitSynchN with wait_all = false
WaitSynchAll, ///< Waiting due to WaitSynchronizationN with wait_all = true
WaitSynch, ///< Waiting due to WaitSynchronization
WaitMutex, ///< Waiting due to an ArbitrateLock svc
WaitCondVar, ///< Waiting due to an WaitProcessWideKey svc
WaitArb, ///< Waiting due to a SignalToAddress/WaitForAddress svc
@ -169,11 +168,17 @@ public:
return tls_memory;
}
/**
* Resumes a thread from waiting
*/
/// Resumes a thread from waiting
void ResumeFromWait();
/// Cancels a waiting operation that this thread may or may not be within.
///
/// When the thread is within a waiting state, this will set the thread's
/// waiting result to signal a canceled wait. The function will then resume
/// this thread.
///
void CancelWait();
/**
* Schedules an event to wake up the specified thread after the specified delay
* @param nanoseconds The time this thread will be allowed to sleep for
@ -184,24 +189,27 @@ public:
void CancelWakeupTimer();
/**
* Sets the result after the thread awakens (from either WaitSynchronization SVC)
* Sets the result after the thread awakens (from svcWaitSynchronization)
* @param result Value to set to the returned result
*/
void SetWaitSynchronizationResult(ResultCode result);
/**
* Sets the output parameter value after the thread awakens (from WaitSynchronizationN SVC only)
* Sets the output parameter value after the thread awakens (from svcWaitSynchronization)
* @param output Value to set to the output parameter
*/
void SetWaitSynchronizationOutput(s32 output);
/**
* Retrieves the index that this particular object occupies in the list of objects
* that the thread passed to WaitSynchronizationN, starting the search from the last element.
* It is used to set the output value of WaitSynchronizationN when the thread is awakened.
* that the thread passed to WaitSynchronization, starting the search from the last element.
*
* It is used to set the output index of WaitSynchronization when the thread is awakened.
*
* When a thread wakes up due to an object signal, the kernel will use the index of the last
* matching object in the wait objects list in case of having multiple instances of the same
* object in the list.
*
* @param object Object to query the index of.
*/
s32 GetWaitObjectIndex(const WaitObject* object) const;
@ -238,13 +246,9 @@ public:
*/
VAddr GetCommandBufferAddress() const;
/**
* Returns whether this thread is waiting for all the objects in
* its wait list to become ready, as a result of a WaitSynchronizationN call
* with wait_all = true.
*/
bool IsSleepingOnWaitAll() const {
return status == ThreadStatus::WaitSynchAll;
/// Returns whether this thread is waiting on objects from a WaitSynchronization call.
bool IsSleepingOnWait() const {
return status == ThreadStatus::WaitSynch;
}
ThreadContext& GetContext() {
@ -418,7 +422,7 @@ private:
Process* owner_process;
/// Objects that the thread is waiting on, in the same order as they were
/// passed to WaitSynchronization1/N.
/// passed to WaitSynchronization.
ThreadWaitObjects wait_objects;
/// List of threads that are waiting for a mutex that is held by this thread.
@ -441,7 +445,7 @@ private:
Handle callback_handle = 0;
/// 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
/// was waiting via WaitSynchronization then the object will be the last object that became
/// available. In case of a timeout, the object will be nullptr.
WakeupCallback wakeup_callback;