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System: port to std::atomic 

v2: use an explicit int type for clang
// multiple conversions from switch condition type
// 'std::atomic<ExecutionMode>' to an integral or enumeration type

v3/v4: use .load to read variable (clang 3.7)
v5: add back 'std::atomic<ExecutionMode>' now that .load is used everywhere
This commit is contained in:
Gregory Hainaut 2016-02-22 20:32:41 +01:00
parent 34826c9506
commit 92078b1c58
2 changed files with 12 additions and 12 deletions
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6
pcsx2/System/SysThreadBase.cpp
View File

@ -91,7 +91,7 @@ void SysThreadBase::Suspend( bool isBlocking )
{
ScopedLock locker( m_ExecModeMutex );
switch( m_ExecMode )
switch( m_ExecMode.load() )
{
// Invalid thread state, nothing to suspend
case ExecMode_NoThreadYet:
@ -196,7 +196,7 @@ void SysThreadBase::Resume()
// sanity checks against m_ExecMode/m_Running status, and if something doesn't feel
// right, we should abort; the user may have canceled the action before it even finished.
switch( m_ExecMode )
switch( m_ExecMode.load() )
{
case ExecMode_Opened: return;
@ -267,7 +267,7 @@ void SysThreadBase::OnResumeInThread( bool isSuspended ) {}
// continued execution unimpeded.
bool SysThreadBase::StateCheckInThread()
{
switch( m_ExecMode )
switch( m_ExecMode.load() )
{
#ifdef PCSX2_DEVBUILD // optimize out handlers for these cases in release builds.

6
pcsx2/System/SysThreads.h
View File

@ -63,7 +63,7 @@ public:
};
protected:
volatile ExecutionMode m_ExecMode;
std::atomic<ExecutionMode> m_ExecMode;
// This lock is used to avoid simultaneous requests to Suspend/Resume/Pause from
// contending threads.
@ -107,7 +107,7 @@ public:
return m_ExecMode >= ExecMode_Closing;
}
ExecutionMode GetExecutionMode() const { return m_ExecMode; }
ExecutionMode GetExecutionMode() const { return m_ExecMode.load(); }
Mutex& ExecutionModeMutex() { return m_ExecModeMutex; }
virtual void Suspend( bool isBlocking = true );
@ -172,7 +172,7 @@ protected:
// true anytime between plugins being initialized and plugins being shutdown. Gets
// set false when plugins are shutdown, the corethread is canceled, or when an error
// occurs while trying to upload a new state into the VM.
volatile bool m_hasActiveMachine;
std::atomic<bool> m_hasActiveMachine;
wxString m_elf_override;