nim-dagger/codex/utils/trackedfutures.nim
Eric de88fd2c53
feat: create logging proxy (#663)
* implement a logging proxy

The logging proxy:
- prevents the need to import chronicles (as well as export except toJson),
- prevents the need to override `writeValue` or use or import nim-json-seralization elsewhere in the codebase, allowing for sole use of utils/json for de/serialization,
- and handles json formatting correctly in chronicles json sinks

* Rename logging -> logutils to avoid ambiguity with common names

* clean up

* add setProperty for JsonRecord, remove nim-json-serialization conflict

* Allow specifying textlines and json format separately

Not specifying a LogFormat will apply the formatting to both textlines and json sinks.

Specifying a LogFormat will apply the formatting to only that sink.

* remove unneeded usages of std/json

We only need to import utils/json instead of std/json

* move serialization from rest/json to utils/json so it can be shared

* fix NoColors ambiguity

Was causing unit tests to fail on Windows.

* Remove nre usage to fix Windows error

Windows was erroring with `could not load: pcre64.dll`. Instead of fixing that error, remove the pcre usage :)

* Add logutils module doc

* Shorten logutils.formatIt for `NBytes`

Both json and textlines formatIt were not needed, and could be combined into one formatIt

* remove debug integration test config

debug output and logformat of json for integration test logs

* Use ## module doc to support docgen

* bump nim-poseidon2 to export fromBytes

Before the changes in this branch, fromBytes was likely being resolved by nim-stew, or other dependency. With the changes in this branch, that dependency was removed and fromBytes could no longer be resolved. By exporting fromBytes from nim-poseidon, the correct resolution is now happening.

* fixes to get compiling after rebasing master

* Add support for Result types being logged using formatIt
2024-01-22 23:35:03 -08:00

53 lines
1.3 KiB
Nim

import std/sugar
import std/tables
import pkg/chronos
import ../logutils
import ../utils/then
type
TrackedFutures* = ref object
futures: Table[uint, FutureBase]
cancelling: bool
logScope:
topics = "trackable futures"
proc len*(self: TrackedFutures): int = self.futures.len
proc removeFuture(self: TrackedFutures, future: FutureBase) =
if not self.cancelling and not future.isNil:
self.futures.del(future.id)
proc track*[T](self: TrackedFutures, fut: Future[T]): Future[T] =
if self.cancelling:
return fut
self.futures[fut.id] = FutureBase(fut)
fut
.then((val: T) => self.removeFuture(fut))
.cancelled(() => self.removeFuture(fut))
.catch((e: ref CatchableError) => self.removeFuture(fut))
return fut
proc track*[T, U](future: Future[T], self: U): Future[T] =
## Convenience method that allows chaining future, eg:
## `await someFut().track(sales)`, where `sales` has declared a
## `trackedFutures` property.
self.trackedFutures.track(future)
proc cancelTracked*(self: TrackedFutures) {.async.} =
self.cancelling = true
trace "cancelling tracked futures"
for future in self.futures.values:
if not future.isNil and not future.finished:
trace "cancelling tracked future", id = future.id
await future.cancelAndWait()
self.futures.clear()
self.cancelling = false