#pragma once

#include <cia/def.h>

#define FUTEX_WAIT            0
#define FUTEX_WAKE            1
#define FUTEX_FD              2
#define FUTEX_REQUEUE         3
#define FUTEX_CMP_REQUEUE     4
#define FUTEX_WAKE_OP         5
#define FUTEX_LOCK_PI         6
#define FUTEX_UNLOCK_PI       7
#define FUTEX_TRYLOCK_PI      8
#define FUTEX_WAIT_BITSET     9
#define FUTEX_WAKE_BITSET     10
#define FUTEX_WAIT_REQUEUE_PI 11
#define FUTEX_CMP_REQUEUE_PI  12
#define FUTEX_LOCK_PI2        13

#define FUTEX_PRIVATE_FLAG    128
#define FUTEX_CLOCK_REALTIME  256
#define FUTEX_CMD_MASK        ~(FUTEX_PRIVATE_FLAG | FUTEX_CLOCK_REALTIME)

#define FUTEX_WAIT_PRIVATE            (FUTEX_PRIVATE_FLAG | FUTEX_WAIT)
#define FUTEX_WAKE_PRIVATE            (FUTEX_PRIVATE_FLAG | FUTEX_WAKE)
#define FUTEX_REQUEUE_PRIVATE         (FUTEX_PRIVATE_FLAG | FUTEX_REQUEUE)
#define FUTEX_CMP_REQUEUE_PRIVATE     (FUTEX_PRIVATE_FLAG | FUTEX_CMP_REQUEUE)
#define FUTEX_WAKE_OP_PRIVATE         (FUTEX_PRIVATE_FLAG | FUTEX_WAKE_OP)
#define FUTEX_LOCK_PI_PRIVATE         (FUTEX_PRIVATE_FLAG | FUTEX_LOCK_PI)
#define FUTEX_LOCK_PI2_PRIVATE        (FUTEX_PRIVATE_FLAG | FUTEX_LOCK_PI2)
#define FUTEX_UNLOCK_PI_PRIVATE       (FUTEX_PRIVATE_FLAG | FUTEX_UNLOCK_PI)
#define FUTEX_TRYLOCK_PI_PRIVATE      (FUTEX_PRIVATE_FLAG | FUTEX_TRYLOCK_PI)
#define FUTEX_WAIT_BITSET_PRIVATE     (FUTEX_PRIVATE_FLAG | FUTEX_WAIT_BITSET)
#define FUTEX_WAKE_BITSET_PRIVATE     (FUTEX_PRIVATE_FLAG | FUTEX_WAKE_BITSET)
#define FUTEX_WAIT_REQUEUE_PI_PRIVATE (FUTEX_PRIVATE_FLAG | FUTEX_WAIT_REQUEUE_PI)
#define FUTEX_CMP_REQUEUE_PI_PRIVATE  (FUTEX_PRIVATE_FLAG | FUTEX_CMP_REQUEUE_PI)

#define FUTEX_32        2
#define FUTEX_WAITV_MAX 128

struct futex_waitv {
    u64 val;
    u64 uaddr;
    u32 flags;
    u32 __reserved;
};

struct robust_list {
    struct robust_list *next;
};

struct robust_list_head {
    struct robust_list list;
    long futex_offset;
    struct robust_list *list_op_pending;
};

#define FUTEX_WAITERS       0x80000000
#define FUTEX_OWNER_DIED    0x40000000
#define FUTEX_TID_MASK      0x3fffffff
#define ROBUST_LIST_LIMIT   2048
#define FUTEX_BITSET_MATCH_ANY  0xffffffff

#define FUTEX_OP_SET         0   /* *(int *)UADDR2 = OPARG; */
#define FUTEX_OP_ADD         1   /* *(int *)UADDR2 += OPARG; */
#define FUTEX_OP_OR          2   /* *(int *)UADDR2 |= OPARG; */
#define FUTEX_OP_ANDN        3   /* *(int *)UADDR2 &= ~OPARG; */
#define FUTEX_OP_XOR         4   /* *(int *)UADDR2 ^= OPARG; */
#define FUTEX_OP_OPARG_SHIFT 8   /* Use (1 << OPARG) instead of OPARG.  */
#define FUTEX_OP_CMP_EQ      0   /* if (oldval == CMPARG) wake */
#define FUTEX_OP_CMP_NE      1   /* if (oldval != CMPARG) wake */
#define FUTEX_OP_CMP_LT      2   /* if (oldval < CMPARG) wake */
#define FUTEX_OP_CMP_LE      3   /* if (oldval <= CMPARG) wake */
#define FUTEX_OP_CMP_GT      4   /* if (oldval > CMPARG) wake */
#define FUTEX_OP_CMP_GE      5   /* if (oldval >= CMPARG) wake */