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223025fc27
* cache transports in controller by privkey-generated pubkey, add retry logic to transport requests Signed-off-by: kim <grufwub@gmail.com> * update code comments, defer mutex unlocks Signed-off-by: kim <grufwub@gmail.com> * add count to 'performing request' log message Signed-off-by: kim <grufwub@gmail.com> * reduce repeated conversions of same url.URL object Signed-off-by: kim <grufwub@gmail.com> * move worker.Worker to concurrency subpackage, add WorkQueue type, limit transport http client use by WorkQueue Signed-off-by: kim <grufwub@gmail.com> * fix security advisories regarding max outgoing conns, max rsp body size - implemented by a new httpclient.Client{} that wraps an underlying client with a queue to limit connections, and limit reader wrapping a response body with a configured maximum size - update pub.HttpClient args passed around to be this new httpclient.Client{} Signed-off-by: kim <grufwub@gmail.com> * add httpclient tests, move ip validation to separate package + change mechanism Signed-off-by: kim <grufwub@gmail.com> * fix merge conflicts Signed-off-by: kim <grufwub@gmail.com> * use singular mutex in transport rather than separate signer mus Signed-off-by: kim <grufwub@gmail.com> * improved useragent string Signed-off-by: kim <grufwub@gmail.com> * add note regarding missing test Signed-off-by: kim <grufwub@gmail.com> * remove useragent field from transport (instead store in controller) Signed-off-by: kim <grufwub@gmail.com> * shutup linter Signed-off-by: kim <grufwub@gmail.com> * reset other signing headers on each loop iteration Signed-off-by: kim <grufwub@gmail.com> * respect request ctx during retry-backoff sleep period Signed-off-by: kim <grufwub@gmail.com> * use external pkg with docs explaining performance "hack" Signed-off-by: kim <grufwub@gmail.com> * use http package constants instead of string method literals Signed-off-by: kim <grufwub@gmail.com> * add license file headers Signed-off-by: kim <grufwub@gmail.com> * update code comment to match new func names Signed-off-by: kim <grufwub@gmail.com> * updates to user-agent string Signed-off-by: kim <grufwub@gmail.com> * update signed testrig models to fit with new transport logic (instead uses separate signer now) Signed-off-by: kim <grufwub@gmail.com> * fuck you linter Signed-off-by: kim <grufwub@gmail.com>
68 lines
2.4 KiB
Go
68 lines
2.4 KiB
Go
package cache
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import "time"
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// Cache represents a TTL cache with customizable callbacks, it
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// exists here to abstract away the "unsafe" methods in the case that
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// you do not want your own implementation atop TTLCache{}.
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type Cache[Key comparable, Value any] interface {
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// Start will start the cache background eviction routine with given sweep frequency.
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// If already running or a freq <= 0 provided, this is a no-op. This will block until
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// the eviction routine has started
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Start(freq time.Duration) bool
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// Stop will stop cache background eviction routine. If not running this is a no-op. This
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// will block until the eviction routine has stopped
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Stop() bool
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// SetEvictionCallback sets the eviction callback to the provided hook
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SetEvictionCallback(hook Hook[Key, Value])
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// SetInvalidateCallback sets the invalidate callback to the provided hook
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SetInvalidateCallback(hook Hook[Key, Value])
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// SetTTL sets the cache item TTL. Update can be specified to force updates of existing items in
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// the cache, this will simply add the change in TTL to their current expiry time
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SetTTL(ttl time.Duration, update bool)
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// Get fetches the value with key from the cache, extending its TTL
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Get(key Key) (value Value, ok bool)
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// Put attempts to place the value at key in the cache, doing nothing if
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// a value with this key already exists. Returned bool is success state
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Put(key Key, value Value) bool
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// Set places the value at key in the cache. This will overwrite any
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// existing value, and call the update callback so. Existing values
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// will have their TTL extended upon update
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Set(key Key, value Value)
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// CAS will attempt to perform a CAS operation on 'key', using provided
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// comparison and swap values. Returned bool is success.
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CAS(key Key, cmp, swp Value) bool
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// Swap will attempt to perform a swap on 'key', replacing the value there
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// and returning the existing value. If no value exists for key, this will
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// set the value and return the zero value for V.
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Swap(key Key, swp Value) Value
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// Has checks the cache for a value with key, this will not update TTL
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Has(key Key) bool
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// Invalidate deletes a value from the cache, calling the invalidate callback
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Invalidate(key Key) bool
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// Clear empties the cache, calling the invalidate callback
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Clear()
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// Size returns the current size of the cache
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Size() int
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}
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// New returns a new initialized Cache.
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func New[K comparable, V any]() Cache[K, V] {
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c := TTLCache[K, V]{}
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c.Init()
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return &c
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}
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