ciabatta/include/linux/futex.h

78 lines
2.9 KiB
C

#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 */