diff options
Diffstat (limited to 'src/common/spinlock.h')
-rw-r--r-- | src/common/spinlock.h | 89 |
1 files changed, 45 insertions, 44 deletions
diff --git a/src/common/spinlock.h b/src/common/spinlock.h index 4d9c4c668..c04416285 100644 --- a/src/common/spinlock.h +++ b/src/common/spinlock.h @@ -2,7 +2,7 @@ * This file is part of Hercules. * http://herc.ws - http://github.com/HerculesWS/Hercules * - * Copyright (C) 2012-2015 Hercules Dev Team + * Copyright (C) 2012-2016 Hercules Dev Team * Copyright (C) rAthena Project (www.rathena.org) * * Hercules is free software: you can redistribute it and/or modify @@ -37,74 +37,75 @@ #endif #ifdef WIN32 - -typedef struct __declspec( align(64) ) SPIN_LOCK{ +struct __declspec(align(64)) spin_lock { volatile LONG lock; volatile LONG nest; volatile LONG sync_lock; -} SPIN_LOCK; +}; #else -typedef struct SPIN_LOCK{ - volatile int32 lock; - volatile int32 nest; // nesting level. - - volatile int32 sync_lock; -} __attribute__((aligned(64))) SPIN_LOCK; +struct spin_lock { + volatile int32 lock; + volatile int32 nest; // nesting level. + volatile int32 sync_lock; +} __attribute__((aligned(64))); #endif - #ifdef HERCULES_CORE -static forceinline void InitializeSpinLock(SPIN_LOCK *lck){ - lck->lock = 0; - lck->nest = 0; - lck->sync_lock = 0; +static forceinline void InitializeSpinLock(struct spin_lock *lck) +{ + lck->lock = 0; + lck->nest = 0; + lck->sync_lock = 0; } -static forceinline void FinalizeSpinLock(SPIN_LOCK *lck){ +static forceinline void FinalizeSpinLock(struct spin_lock *lck) +{ return; } -#define getsynclock(l) do { if(InterlockedCompareExchange((l), 1, 0) == 0) break; rathread_yield(); } while(/*always*/1) +#define getsynclock(l) do { if(InterlockedCompareExchange((l), 1, 0) == 0) break; thread->yield(); } while(/*always*/1) #define dropsynclock(l) do { InterlockedExchange((l), 0); } while(0) -static forceinline void EnterSpinLock(SPIN_LOCK *lck){ - int tid = rathread_get_tid(); +static forceinline void EnterSpinLock(struct spin_lock *lck) +{ + int tid = thread->get_tid(); - // Get Sync Lock && Check if the requester thread already owns the lock. - // if it owns, increase nesting level - getsynclock(&lck->sync_lock); - if(InterlockedCompareExchange(&lck->lock, tid, tid) == tid){ - InterlockedIncrement(&lck->nest); - dropsynclock(&lck->sync_lock); - return; // Got Lock - } - // drop sync lock + // Get Sync Lock && Check if the requester thread already owns the lock. + // if it owns, increase nesting level + getsynclock(&lck->sync_lock); + if (InterlockedCompareExchange(&lck->lock, tid, tid) == tid) { + InterlockedIncrement(&lck->nest); dropsynclock(&lck->sync_lock); - - // Spin until we've got it ! - while(1){ - if(InterlockedCompareExchange(&lck->lock, tid, 0) == 0){ - InterlockedIncrement(&lck->nest); - return; // Got Lock - } - rathread_yield(); // Force ctxswitch to another thread. + return; // Got Lock + } + // drop sync lock + dropsynclock(&lck->sync_lock); + + // Spin until we've got it ! + while (true) { + if (InterlockedCompareExchange(&lck->lock, tid, 0) == 0) { + InterlockedIncrement(&lck->nest); + return; // Got Lock } + thread->yield(); // Force ctxswitch to another thread. + } } -static forceinline void LeaveSpinLock(SPIN_LOCK *lck){ - int tid = rathread_get_tid(); +static forceinline void LeaveSpinLock(struct spin_lock *lck) +{ + int tid = thread->get_tid(); - getsynclock(&lck->sync_lock); + getsynclock(&lck->sync_lock); - if(InterlockedCompareExchange(&lck->lock, tid, tid) == tid){ // this thread owns the lock. - if(InterlockedDecrement(&lck->nest) == 0) - InterlockedExchange(&lck->lock, 0); // Unlock! - } + if (InterlockedCompareExchange(&lck->lock, tid, tid) == tid) { // this thread owns the lock. + if (InterlockedDecrement(&lck->nest) == 0) + InterlockedExchange(&lck->lock, 0); // Unlock! + } - dropsynclock(&lck->sync_lock); + dropsynclock(&lck->sync_lock); } #endif // HERCULES_CORE |