Struct vstd::atomic::PAtomicU16

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pub struct PAtomicU16 { /* private fields */ }

Implementations§

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impl PAtomicU16

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pub spec fn id(&self) -> int

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pub const exec fn new(i: u16) -> res : (PAtomicU16, Tracked<PermissionU16>)

ensures
equal(
    res.1@.view(),
    PermissionDataU16 {
        patomic: res.0.id(),
        value: i,
    },
),
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pub exec fn load(&self, Tracked(perm): Tracked<&PermissionU16>) -> ret : u16

requires
equal(self.id(), perm.view().patomic),
ensures
equal(perm.view().value, ret),
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pub exec fn store(&self, Tracked(perm): Tracked<&mut PermissionU16>, v: u16)

requires
equal(self.id(), old(perm).view().patomic),
ensures
equal(perm.view().value, v) && equal(self.id(), perm.view().patomic),
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pub exec fn compare_exchange( &self, verus_tmp_perm: Tracked<&mut PermissionU16>, current: u16, new: u16 ) -> ret : Result<u16, u16>

requires
equal(self.id(), old(perm).view().patomic),
ensures
equal(self.id(), perm.view().patomic)
    && match ret {
        Result::Ok(r) => {
            current == old(perm).view().value && equal(perm.view().value, new)
                && equal(r, old(perm).view().value)
        }
        Result::Err(r) => {
            current != old(perm).view().value
                && equal(perm.view().value, old(perm).view().value)
                && equal(r, old(perm).view().value)
        }
    },
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pub exec fn compare_exchange_weak( &self, verus_tmp_perm: Tracked<&mut PermissionU16>, current: u16, new: u16 ) -> ret : Result<u16, u16>

requires
equal(self.id(), old(perm).view().patomic),
ensures
equal(self.id(), perm.view().patomic)
    && match ret {
        Result::Ok(r) => {
            current == old(perm).view().value && equal(perm.view().value, new)
                && equal(r, old(perm).view().value)
        }
        Result::Err(r) => {
            equal(perm.view().value, old(perm).view().value)
                && equal(r, old(perm).view().value)
        }
    },
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pub exec fn swap(&self, Tracked(perm): Tracked<&mut PermissionU16>, v: u16) -> ret : u16

requires
equal(self.id(), old(perm).view().patomic),
ensures
equal(perm.view().value, v) && equal(old(perm).view().value, ret)
    && equal(self.id(), perm.view().patomic),
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pub exec fn into_inner(self, Tracked(perm): Tracked<PermissionU16>) -> ret : u16

requires
equal(self.id(), perm.view().patomic),
ensures
equal(perm.view().value, ret),
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pub exec fn fetch_add_wrapping( &self, verus_tmp_perm: Tracked<&mut PermissionU16>, n: u16 ) -> ret : u16

requires
equal(self.id(), old(perm).view().patomic),
ensures
equal(old(perm).view().value, ret),
perm.view().patomic == old(perm).view().patomic,
perm.view().value as int == wrapping_add_u16(old(perm).view().value as int, n as int),
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pub exec fn fetch_sub_wrapping( &self, verus_tmp_perm: Tracked<&mut PermissionU16>, n: u16 ) -> ret : u16

requires
equal(self.id(), old(perm).view().patomic),
ensures
equal(old(perm).view().value, ret),
perm.view().patomic == old(perm).view().patomic,
perm.view().value as int == wrapping_sub_u16(old(perm).view().value as int, n as int),
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pub exec fn fetch_add( &self, verus_tmp_perm: Tracked<&mut PermissionU16>, n: u16 ) -> ret : u16

requires
equal(self.id(), old(perm).view().patomic),
(<u16>::MIN as int) <= old(perm).view().value + n,
old(perm).view().value + n <= (<u16>::MAX as int),
ensures
equal(old(perm).view().value, ret),
perm.view().patomic == old(perm).view().patomic,
perm.view().value == old(perm).view().value + n,
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pub exec fn fetch_sub( &self, verus_tmp_perm: Tracked<&mut PermissionU16>, n: u16 ) -> ret : u16

requires
equal(self.id(), old(perm).view().patomic),
(<u16>::MIN as int) <= old(perm).view().value - n,
old(perm).view().value - n <= <u16>::MAX as int,
ensures
equal(old(perm).view().value, ret),
perm.view().patomic == old(perm).view().patomic,
perm.view().value == old(perm).view().value - n,
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pub exec fn fetch_and( &self, verus_tmp_perm: Tracked<&mut PermissionU16>, n: u16 ) -> ret : u16

requires
equal(self.id(), old(perm).view().patomic),
ensures
equal(old(perm).view().value, ret),
perm.view().patomic == old(perm).view().patomic,
perm.view().value == (old(perm).view().value & n),
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pub exec fn fetch_or( &self, verus_tmp_perm: Tracked<&mut PermissionU16>, n: u16 ) -> ret : u16

requires
equal(self.id(), old(perm).view().patomic),
ensures
equal(old(perm).view().value, ret),
perm.view().patomic == old(perm).view().patomic,
perm.view().value == (old(perm).view().value | n),
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pub exec fn fetch_xor( &self, verus_tmp_perm: Tracked<&mut PermissionU16>, n: u16 ) -> ret : u16

requires
equal(self.id(), old(perm).view().patomic),
ensures
equal(old(perm).view().value, ret),
perm.view().patomic == old(perm).view().patomic,
perm.view().value == (old(perm).view().value ^ n),
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pub exec fn fetch_nand( &self, verus_tmp_perm: Tracked<&mut PermissionU16>, n: u16 ) -> ret : u16

requires
equal(self.id(), old(perm).view().patomic),
ensures
equal(old(perm).view().value, ret),
perm.view().patomic == old(perm).view().patomic,
perm.view().value == !(old(perm).view().value & n),
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pub exec fn fetch_max( &self, verus_tmp_perm: Tracked<&mut PermissionU16>, n: u16 ) -> ret : u16

requires
equal(self.id(), old(perm).view().patomic),
ensures
equal(old(perm).view().value, ret),
perm.view().patomic == old(perm).view().patomic,
perm.view().value
    == (if old(perm).view().value > n { old(perm).view().value } else { n }),
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pub exec fn fetch_min( &self, verus_tmp_perm: Tracked<&mut PermissionU16>, n: u16 ) -> ret : u16

requires
equal(self.id(), old(perm).view().patomic),
ensures
equal(old(perm).view().value, ret),
perm.view().patomic == old(perm).view().patomic,
perm.view().value
    == (if old(perm).view().value < n { old(perm).view().value } else { n }),

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