Fix timer panics in the wasm light client (#4561)

* Make WASM browser thing compile

* Fix

* updated exit-future (github repo)

* Switch to broadcast crate

* Migrate client/cli

* Switch exit-future to modernize branch

* Small changes

* Switch to cargo version and fix fg tests

* fix basic-authorship

* Fix crash on grafana macro

* Fix grafana macro

* Switch node python version

* Disable record_metrics_slice in grafana macro on wasm

* Update client/grafana-data-source/src/lib.rs

* Revert "Update client/grafana-data-source/src/lib.rs"

This reverts commit 888009a8e0b7051bd4bfbbfdb0448bcf2e2aae93.

* Add wasm support for state machine

* Switch to my own libp2p version

* Revert "Switch to my own libp2p version"

This reverts commit ce613871b59264b3165b45c37943e6560240daa7.

* Revert "Add wasm support for state machine"

This reverts commit de7eaa0694d9534fc3b164621737968e9a6a7c5f.

* Add sc-browser

* Squash

* remove sc-browser

* Fix keystore on wasm

* stubs for removed functions to make env compatible with old runtimes

* Add test (that doesn't work)

* Fix build scripts

* Revert basic-authorship due to no panics

* Revert cli/informant

* Revert consensus

* revert offchain

* Update utils/browser/Cargo.toml

Co-Authored-By: Benjamin Kampmann <ben@gnunicorn.org>

* export console functions

* Add new chainspec

* Fix ws in chain spec

* revert chainspec

* Fix chainspec

* Use an Option<PathBuf> in keystore instead of cfg flags

* Remove crud

* Only use wasm-timer for instant and systemtime

* Remove telemetry changes

* Assuming this is ok

* Add a KeystoreConfig

* Add stubs back in

* Update libp2p

* Revert "Add stubs back in"

This reverts commit 4690cf1882aa0f99f7f00a58c4080c8aa9b77c36.

* Remove commented js again

* Bump kvdb-web version

* Fix cli

* Switch branch on futures-timer

* Fix tests

* Remove sc-client test build in check-web-wasm because there isn't a good way to build futures-timer with wasm-bindgen support in the build

* Remove more things ^^

* Switch branch on futures-timer back

* Put DB io stats behind a cfg flag

* Fix things

* Don't timeout transports on wasm

* Update branch of futures-timer and fix bad merge

* Spawn informant

* Fix network test

* Fix delay resets

* Changes

* Fix tests

* use wasm_timer for transaction pool

* Fixes

* Switch futures-timer to crates

* Only diagnose futures on native

* Fix sc-network-test tests

* Select log level in js

* Fix syncing ;^)

* Allow disabling colours in the informant

* Use OutputFormat enum for informant

* MallocSizeOf impl on transaction pool broke stuff because wasm_timer::Instant doesnt impl it so just revert the transaction pool to master

* Update futures-diagnose

* Revert "MallocSizeOf impl on transaction pool broke stuff because wasm_timer::Instant doesnt impl it so just revert the transaction pool to master"

This reverts commit baa4ffc94fd968b6660a2c17ba8113e06af15548.

* Pass whole chain spec in start_client

* Get Instant::now to work in transaction pool again

* Informant dep reordering

Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
Co-authored-by: Svyatoslav Nikolsky <svyatonik@gmail.com>
Co-authored-by: Benjamin Kampmann <ben.kampmann@googlemail.com>
Co-authored-by: Demi Obenour <48690212+DemiMarie-parity@users.noreply.github.com>

substrate/client/network-gossip/src/state_machine.rs

@@ -28,6 +28,7 @@ use sp_runtime::traits::{Block as BlockT, Hash, HashFor};
 use sp_runtime::ConsensusEngineId;
 pub use sc_network::message::generic::{Message, ConsensusMessage};
 use sc_network::config::Roles;
+use wasm_timer::Instant;
 
 // FIXME: Add additional spam/DoS attack protection: https://github.com/paritytech/substrate/issues/1115
 const KNOWN_MESSAGES_CACHE_SIZE: usize = 4096;
@@ -165,7 +166,7 @@ pub struct ConsensusGossip<B: BlockT> {
 	messages: Vec<MessageEntry<B>>,
 	known_messages: LruCache<B::Hash, ()>,
 	validators: HashMap<ConsensusEngineId, Arc<dyn Validator<B>>>,
-	next_broadcast: time::Instant,
+	next_broadcast: Instant,
 }
 
 impl<B: BlockT> ConsensusGossip<B> {
@@ -177,7 +178,7 @@ impl<B: BlockT> ConsensusGossip<B> {
 			messages: Default::default(),
 			known_messages: LruCache::new(KNOWN_MESSAGES_CACHE_SIZE),
 			validators: Default::default(),
-			next_broadcast: time::Instant::now() + REBROADCAST_INTERVAL,
+			next_broadcast: Instant::now() + REBROADCAST_INTERVAL,
 		}
 	}
 
@@ -260,9 +261,9 @@ impl<B: BlockT> ConsensusGossip<B> {
 	/// Perform periodic maintenance
 	pub fn tick(&mut self, network: &mut dyn Network<B>) {
 		self.collect_garbage();
-		if time::Instant::now() >= self.next_broadcast {
+		if Instant::now() >= self.next_broadcast {
 			self.rebroadcast(network);
-			self.next_broadcast = time::Instant::now() + REBROADCAST_INTERVAL;
+			self.next_broadcast = Instant::now() + REBROADCAST_INTERVAL;
 		}
 	}