pub const PthreadRwLock = struct {
    rwlock: std.c.pthread_rwlock_t = .{},

    pub fn tryLock(rwl: *PthreadRwLock) bool {
        return std.c.pthread_rwlock_trywrlock(&rwl.rwlock) == .SUCCESS;
    }

    pub fn lock(rwl: *PthreadRwLock) void {
        const rc = std.c.pthread_rwlock_wrlock(&rwl.rwlock);
        assert(rc == .SUCCESS);
    }

    pub fn unlock(rwl: *PthreadRwLock) void {
        const rc = std.c.pthread_rwlock_unlock(&rwl.rwlock);
        assert(rc == .SUCCESS);
    }

    pub fn tryLockShared(rwl: *PthreadRwLock) bool {
        return std.c.pthread_rwlock_tryrdlock(&rwl.rwlock) == .SUCCESS;
    }

    pub fn lockShared(rwl: *PthreadRwLock) void {
        const rc = std.c.pthread_rwlock_rdlock(&rwl.rwlock);
        assert(rc == .SUCCESS);
    }

    pub fn unlockShared(rwl: *PthreadRwLock) void {
        const rc = std.c.pthread_rwlock_unlock(&rwl.rwlock);
        assert(rc == .SUCCESS);
    }
}