#ifndef MARS_NWE_CORE_SPINLOCK_H
#define MARS_NWE_CORE_SPINLOCK_H

#include <pthread.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
 * Linux userspace backend for NSS runtime spin locks.
 *
 * The imported NSS common-layer headers were written for NetWare/NLM and
 * Linux-kernel style spinlock APIs.  mars-nwe now targets Linux userspace, so
 * keep the primitive in libnwcore and map it directly to POSIX pthread
 * spinlocks instead of carrying a fake NWFS-local shim.
 */
typedef pthread_spinlock_t spinlock_t;

static inline void
spin_lock_init(spinlock_t *lock)
{
    (void)pthread_spin_init(lock, PTHREAD_PROCESS_PRIVATE);
}

static inline void
spin_lock_destroy(spinlock_t *lock)
{
    (void)pthread_spin_destroy(lock);
}

static inline void
spin_lock(spinlock_t *lock)
{
    (void)pthread_spin_lock(lock);
}

static inline void
spin_unlock(spinlock_t *lock)
{
    (void)pthread_spin_unlock(lock);
}

static inline int
spin_trylock(spinlock_t *lock)
{
    return pthread_spin_trylock(lock) == 0;
}

#ifdef __cplusplus
}
#endif

#endif /* MARS_NWE_CORE_SPINLOCK_H */