Struct tor_circmgr::hspool::pool::Pool
source · pub(super) struct Pool {
circuits: Vec<HsCircStub>,
stub_target: usize,
ext_stub_target: usize,
have_been_exhausted: bool,
have_been_under_highwater: bool,
last_changed_target: Option<Instant>,
mode: VanguardMode,
}
hs-common
only.Expand description
A collection of circuits used to fulfil onion-service-related requests.
Fields§
§circuits: Vec<HsCircStub>
The collection of circuits themselves, in no particular order.
stub_target: usize
The number of SHORT elements that we would like to have in our pool.
ext_stub_target: usize
The number of EXTENDED elements that we would like to have in our pool.
have_been_exhausted: bool
True if we have exhausted our pool since the last time we decided whether to change our target level.
have_been_under_highwater: bool
True if we have been under 4/5 of our target since the last time we decided whether to change it.
last_changed_target: Option<Instant>
Last time when we changed our target size.
mode: VanguardMode
The kind of vanguards that are in use.
All the circuits from circuits
use the type of vanguards specified here.
Implementations§
source§impl Pool
impl Pool
sourcepub(super) fn insert(&mut self, circ: HsCircStub)
pub(super) fn insert(&mut self, circ: HsCircStub)
Add circ
to this pool
sourcepub(super) fn retain<F>(&mut self, f: F)
pub(super) fn retain<F>(&mut self, f: F)
Remove every circuit from this pool for which f
returns false.
sourcepub(super) fn very_low(&self) -> bool
pub(super) fn very_low(&self) -> bool
Return true if we are very low on circuits and should build more immediately.
sourcepub(super) fn circs_to_launch(&self) -> CircsToLaunch
pub(super) fn circs_to_launch(&self) -> CircsToLaunch
Return a CircsToLaunch
describing the circuits we would currently like to launch.
sourcefn stubs_to_launch(&self) -> usize
fn stubs_to_launch(&self) -> usize
Return the number of SHORT circuits we would currently like to launch.
sourcefn ext_stubs_to_launch(&self) -> usize
fn ext_stubs_to_launch(&self) -> usize
Return the number of EXTENDED circuits we would currently like to launch.
sourcefn target(&self) -> usize
fn target(&self) -> usize
Return the total number of circuits we would like to launch.
We do not discard when we are above this threshold, but we do try to build when we are low.
sourcepub(super) fn take_one_where<R, F>(
&mut self,
rng: &mut R,
f: F,
prefs: &HsCircPrefs
) -> Option<HsCircStub>
pub(super) fn take_one_where<R, F>( &mut self, rng: &mut R, f: F, prefs: &HsCircPrefs ) -> Option<HsCircStub>
If there is any circuit in this pool for which f
returns true and that satisfies
all of the specified HsCircPrefs
, return one such circuit at random, and remove
it from the pool.
If none of the circuits satisfy prefs
, return a randomly selected circuit for which f
returns true, and remove it from the pool.
sourcepub(super) fn update_target_size(&mut self, now: Instant)
pub(super) fn update_target_size(&mut self, now: Instant)
Update the target sizes for our pool.
This updates our target numbers of SHORT and EXTENDED circuits.
sourcepub(super) fn reconfigure_vanguards(
&mut self,
config: &VanguardConfig
) -> Result<(), ReconfigureError>
Available on crate feature vanguards
only.
pub(super) fn reconfigure_vanguards( &mut self, config: &VanguardConfig ) -> Result<(), ReconfigureError>
vanguards
only.Handle vanguard configuration changes.
If new config has a different [VanguardMode
] enabled,
this empties the circuit pool.
sourcepub(super) fn vanguards_enabled(&self) -> bool
pub(super) fn vanguards_enabled(&self) -> bool
Returns true
if vanguards are enabled.
Trait Implementations§
Auto Trait Implementations§
impl Freeze for Pool
impl !RefUnwindSafe for Pool
impl Send for Pool
impl Sync for Pool
impl Unpin for Pool
impl !UnwindSafe for Pool
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