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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
#[derive(Clone, Copy, Debug)]
pub struct KvConfig {
pub max_write_key_size_bytes: usize,
pub max_read_key_size_bytes: usize,
pub max_value_size_bytes: usize,
pub max_read_ranges: usize,
pub max_read_entries: usize,
pub max_checks: usize,
pub max_mutations: usize,
pub max_watched_keys: usize,
pub max_total_mutation_size_bytes: usize,
pub max_total_key_size_bytes: usize,
}
impl KvConfig {
pub fn builder() -> KvConfigBuilder {
KvConfigBuilder::default()
}
}
#[derive(Default)]
pub struct KvConfigBuilder {
max_write_key_size_bytes: Option<usize>,
max_value_size_bytes: Option<usize>,
max_read_ranges: Option<usize>,
max_read_entries: Option<usize>,
max_checks: Option<usize>,
max_mutations: Option<usize>,
max_watched_keys: Option<usize>,
max_total_mutation_size_bytes: Option<usize>,
max_total_key_size_bytes: Option<usize>,
}
impl KvConfigBuilder {
pub fn new() -> Self {
Self::default()
}
pub fn max_write_key_size_bytes(
&mut self,
max_write_key_size_bytes: usize,
) -> &mut Self {
self.max_write_key_size_bytes = Some(max_write_key_size_bytes);
self
}
pub fn max_value_size_bytes(
&mut self,
max_value_size_bytes: usize,
) -> &mut Self {
self.max_value_size_bytes = Some(max_value_size_bytes);
self
}
pub fn max_read_ranges(&mut self, max_read_ranges: usize) -> &mut Self {
self.max_read_ranges = Some(max_read_ranges);
self
}
pub fn max_read_entries(&mut self, max_read_entries: usize) -> &mut Self {
self.max_read_entries = Some(max_read_entries);
self
}
pub fn max_checks(&mut self, max_checks: usize) -> &mut Self {
self.max_checks = Some(max_checks);
self
}
pub fn max_mutations(&mut self, max_mutations: usize) -> &mut Self {
self.max_mutations = Some(max_mutations);
self
}
pub fn max_watched_keys(&mut self, max_watched_keys: usize) -> &mut Self {
self.max_watched_keys = Some(max_watched_keys);
self
}
pub fn max_total_mutation_size_bytes(
&mut self,
max_total_mutation_size_bytes: usize,
) -> &mut Self {
self.max_total_mutation_size_bytes = Some(max_total_mutation_size_bytes);
self
}
pub fn max_total_key_size_bytes(
&mut self,
max_total_key_size_bytes: usize,
) -> &mut Self {
self.max_total_key_size_bytes = Some(max_total_key_size_bytes);
self
}
pub fn build(&self) -> KvConfig {
const MAX_WRITE_KEY_SIZE_BYTES: usize = 2048;
// range selectors can contain 0x00 or 0xff suffixes
const MAX_READ_KEY_SIZE_BYTES: usize = MAX_WRITE_KEY_SIZE_BYTES + 1;
const MAX_VALUE_SIZE_BYTES: usize = 65536;
const MAX_READ_RANGES: usize = 10;
const MAX_READ_ENTRIES: usize = 1000;
const MAX_CHECKS: usize = 100;
const MAX_MUTATIONS: usize = 1000;
const MAX_WATCHED_KEYS: usize = 10;
const MAX_TOTAL_MUTATION_SIZE_BYTES: usize = 800 * 1024;
const MAX_TOTAL_KEY_SIZE_BYTES: usize = 80 * 1024;
KvConfig {
max_write_key_size_bytes: self
.max_write_key_size_bytes
.unwrap_or(MAX_WRITE_KEY_SIZE_BYTES),
max_read_key_size_bytes: self
.max_write_key_size_bytes
.map(|x|
// range selectors can contain 0x00 or 0xff suffixes
x + 1)
.unwrap_or(MAX_READ_KEY_SIZE_BYTES),
max_value_size_bytes: self
.max_value_size_bytes
.unwrap_or(MAX_VALUE_SIZE_BYTES),
max_read_ranges: self.max_read_ranges.unwrap_or(MAX_READ_RANGES),
max_read_entries: self.max_read_entries.unwrap_or(MAX_READ_ENTRIES),
max_checks: self.max_checks.unwrap_or(MAX_CHECKS),
max_mutations: self.max_mutations.unwrap_or(MAX_MUTATIONS),
max_watched_keys: self.max_watched_keys.unwrap_or(MAX_WATCHED_KEYS),
max_total_mutation_size_bytes: self
.max_total_mutation_size_bytes
.unwrap_or(MAX_TOTAL_MUTATION_SIZE_BYTES),
max_total_key_size_bytes: self
.max_total_key_size_bytes
.unwrap_or(MAX_TOTAL_KEY_SIZE_BYTES),
}
}
}
|
