59 lines
1008 B
C
59 lines
1008 B
C
#pragma once
|
|
#include <inttypes.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Begin C API */
|
|
struct fastlock;
|
|
void fastlock_init(struct fastlock *lock);
|
|
void fastlock_lock(struct fastlock *lock);
|
|
int fastlock_trylock(struct fastlock *lock);
|
|
void fastlock_unlock(struct fastlock *lock);
|
|
void fastlock_free(struct fastlock *lock);
|
|
|
|
uint64_t fastlock_getlongwaitcount(); // this is a global value
|
|
|
|
/* End C API */
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
struct ticket
|
|
{
|
|
uint16_t m_active;
|
|
uint16_t m_avail;
|
|
};
|
|
struct fastlock
|
|
{
|
|
volatile struct ticket m_ticket;
|
|
|
|
volatile int m_pidOwner;
|
|
volatile int m_depth;
|
|
|
|
#ifdef __cplusplus
|
|
fastlock()
|
|
{
|
|
fastlock_init(this);
|
|
}
|
|
|
|
void lock()
|
|
{
|
|
fastlock_lock(this);
|
|
}
|
|
|
|
bool try_lock()
|
|
{
|
|
return !!fastlock_trylock(this);
|
|
}
|
|
|
|
void unlock()
|
|
{
|
|
fastlock_unlock(this);
|
|
}
|
|
|
|
bool fOwnLock(); // true if this thread owns the lock, NOTE: not 100% reliable, use for debugging only
|
|
#endif
|
|
};
|