[−][src]Struct ckb_rocksdb::ReadOptions
Methods
impl ReadOptions
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pub fn set_snapshot<T>(&mut self, snapshot: &T) where
T: ConstHandle<rocksdb_snapshot_t>,
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T: ConstHandle<rocksdb_snapshot_t>,
pub fn set_iterate_upper_bound<K: AsRef<[u8]>>(&mut self, key: K)
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pub fn set_prefix_same_as_start(&mut self, v: bool)
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pub fn set_total_order_seek(&mut self, v: bool)
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pub fn set_readahead_size(&mut self, v: usize)
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If non-zero, an iterator will create a new table reader which performs reads of the given size. Using a large size (> 2MB) can improve the performance of forward iteration on spinning disks. Default: 0
use ckb_rocksdb::{ReadOptions}; let mut opts = ReadOptions::default(); opts.set_readahead_size(4_194_304); // 4mb
pub fn input_or_default(
input: Option<&ReadOptions>,
default_readopts: &mut Option<ReadOptions>
) -> Result<*mut rocksdb_readoptions_t, Error>
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input: Option<&ReadOptions>,
default_readopts: &mut Option<ReadOptions>
) -> Result<*mut rocksdb_readoptions_t, Error>
Trait Implementations
impl Clone for ReadOptions
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fn clone(&self) -> ReadOptions
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fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl Default for ReadOptions
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fn default() -> ReadOptions
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impl Drop for ReadOptions
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impl<T> GetCF<ReadOptions> for T where
T: Handle<rocksdb_t> + Read,
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T: Handle<rocksdb_t> + Read,
fn get_cf_full<K: AsRef<[u8]>>(
&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
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&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
fn get_cf<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
fn get_cf_opt<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
impl GetCF<ReadOptions> for OptimisticTransaction
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fn get_cf_full<K: AsRef<[u8]>>(
&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
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&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
fn get_cf<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
fn get_cf_opt<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
impl<'a> GetCF<ReadOptions> for OptimisticTransactionSnapshot<'a>
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fn get_cf_full<K: AsRef<[u8]>>(
&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
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&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
fn get_cf<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
fn get_cf_opt<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
impl<'a> GetCF<ReadOptions> for Snapshot<'a>
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fn get_cf_full<K: AsRef<[u8]>>(
&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
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&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
fn get_cf<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
fn get_cf_opt<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
impl<'a, T> GetCF<ReadOptions> for Transaction<'a, T> where
Transaction<'a, T>: Handle<rocksdb_transaction_t> + Read,
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Transaction<'a, T>: Handle<rocksdb_transaction_t> + Read,
fn get_cf_full<K: AsRef<[u8]>>(
&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
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&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
fn get_cf<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
fn get_cf_opt<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
impl<'a, T> GetCF<ReadOptions> for TransactionSnapshot<'a, T> where
Transaction<'a, T>: GetCF<ReadOptions>,
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Transaction<'a, T>: GetCF<ReadOptions>,
fn get_cf_full<K: AsRef<[u8]>>(
&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
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&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
fn get_cf<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
fn get_cf_opt<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
impl GetCF<ReadOptions> for TransactionDB
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fn get_cf_full<K: AsRef<[u8]>>(
&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
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&self,
cf: Option<&ColumnFamily>,
key: K,
readopts: Option<&ReadOptions>
) -> Result<Option<DBVector>, Error>
fn get_cf<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K
) -> Result<Option<DBVector>, Error>
fn get_cf_opt<K: AsRef<[u8]>>(
&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
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&self,
cf: &ColumnFamily,
key: K,
readopts: &R
) -> Result<Option<DBVector>, Error>
impl Handle<rocksdb_readoptions_t> for ReadOptions
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fn handle(&self) -> *mut rocksdb_readoptions_t
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Auto Trait Implementations
impl RefUnwindSafe for ReadOptions
impl !Send for ReadOptions
impl !Sync for ReadOptions
impl Unpin for ReadOptions
impl UnwindSafe for ReadOptions
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,