futriix/src/fastlock.cpp

#include "fastlock.h"

extern "C" void fastlock_init(struct fastlock *lock)
{
    lock->lock = 0;
}

extern "C" void fastlock_lock(struct fastlock *lock)
{
    while (!__sync_bool_compare_and_swap(&lock->lock, 0, 1));
}

extern "C" void fastlock_unlock(struct fastlock *lock)
{
    lock->lock = 0;
}
extern "C" void fastlock_free(struct fastlock *lock)
{
    // NOP
    (void)lock;
}