Tracing for wasm with bridging to native (#6916)

* implement events handling, implement parent_id for spans & events

* add events to sp_io::storage

* update test

* add tests

* adjust limit

* let tracing crate handle parent_ids

* re-enable current-id tracking

* add test for threads with CurrentSpan

* fix log level

* remove redundant check for non wasm traces

* remove duplicate definition in test

* Adding conditional events API

* prefer explicit parent_id over current,

enhance test

* limit changes to client::tracing event implementation

* remove From impl due to fallback required on parent_id

* make tracing codecable

* replace with global tracing

* new tracing interface

* impl TracingSubscriber in client

* implement access to global TracingSubscriber from primitives

* span for wasm

* increment towards Wasm Tracing Subscriber implementation

* increment, remove sp-tracing from runtime-interface

* increment, it compiles

* attained original functionality with new mechanism

* implement remaining TracingSubscriber functions

* remove spans from decl_module

* add handling for encoded values

* Revert "replace with global tracing"

This reverts commit 8824a60deea54d9b437407a21c8ceaf6a1902ee5.

* Wasm Side Tracing

* tracing on wasm

* enable tracing wasm on node-runtime

* export all the macros in std

* tracing subscriber on wasm-side only

* pass spans and events over and record them

* reactivate previous code and  cleanup

* further cleaning up

* extend the span macros, activate through executive

* tracking the actual extrinsic, too

* style

* fixing tests

* spaces -> tabs

* attempting to reactivate params

* activate our tests in CI

* some passing

* tests passing

* with core lazy

* global tracer for wasm side with pass over

* fixing metadata referencing

* remove const_fn feature requirement

* reenable dispatch traces

* reset client tracing

* further cleaning up

* fixing runtime-test

* move tracing-build setup into runtime-test

* Merge DebugWriter from tracing and frame-support, move to sp-std

* remove dangling fixme

* Docs for tracing primitives

* cleaning up a bit more

* Wasm interface docs

* optimise docs.rs setup

* adding tracing flags to uncomment

* remove brace

* fixing imports

* fixing broken syntax

* add required modules

* nicer formatting

* better target management

* adding low level storage tracing events into frame

* add custom Debug impl for WasmMetadata

* cloning profiler

* adding info about cloning profiler

* using in-scope for within calls

* proper time tracing, cleaning up println

* allow to disable tracing on runtime_interface-macro

* disable tracing for wasm-tracing-interface

* simplify wasm-tracing-api

* update client to new interface

* fixing docs and tests for sp-tracing

* update integration tests

* re-activating enter_span

* dropping FIXME, it's documented

* fix formatting

* fix formatting

* fix imports

* more debug info

* inform wasm about it being disabled by returning 1

* only one tracer, but enabled multi-all support

* make trait pub again for tests

* Apply suggestions from code review

Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com>

* fixing wasm doc tests for proper usage

* remove unnecessary import

* fixing formatting

* minor style fixes

* downgrading wabt

* update error message for UI

* Fix interface test

* next attempt to fix macros

* geee

* revert tracing on hashed for future PR

* remove local macros, use originals

* we are able to convert to static items

* implement more WasmValue types

* adding support to convert str, debug and encoded values

* more minor fixes

* revert unsafe 'static making

* fix indentation

* remove commented lines

* bump all them tracing versions

* cleaning up docs and info

* document new flag

* the new layered system handles span cloning better

* Apply suggestions from code review

Co-authored-by: David <dvdplm@gmail.com>

Co-authored-by: Matt Rutherford <mattrutherford@users.noreply.github.com>
Co-authored-by: Niklas Adolfsson <niklasadolfsson1@gmail.com>
Co-authored-by: David <dvdplm@gmail.com>

substrate/primitives/runtime-interface/test/src/lib.rs

@@ -18,8 +18,6 @@
 //! Integration tests for runtime interface primitives
 #![cfg(test)]
 
-#![cfg(test)]
-
 use sp_runtime_interface::*;
 
 use sp_runtime_interface_test_wasm::{wasm_binary_unwrap, test_api::HostFunctions};
@@ -157,14 +155,26 @@ fn test_versionining_with_new_host_works() {
 
 #[test]
 fn test_tracing() {
-	use tracing::span::Id as SpanId;
+	use std::fmt;
+	use tracing::{span::Id as SpanId};
+	use tracing_core::field::{Field, Visit};
 
 	#[derive(Clone)]
 	struct TracingSubscriber(Arc<Mutex<Inner>>);
 
+	struct FieldConsumer(&'static str, Option<String>);
+	impl Visit for FieldConsumer {
+
+		fn record_debug(&mut self, field: &Field, value: &dyn fmt::Debug) {
+			if  field.name() == self.0 {
+				self.1 = Some(format!("{:?}", value))
+			}
+		}
+	}
+
 	#[derive(Default)]
 	struct Inner {
-		spans: HashSet<&'static str>,
+		spans: HashSet<String>,
 	}
 
 	impl tracing::subscriber::Subscriber for TracingSubscriber {
@@ -173,7 +183,9 @@ fn test_tracing() {
 		fn new_span(&self, span: &tracing::span::Attributes) -> tracing::Id {
 			let mut inner = self.0.lock().unwrap();
 			let id = SpanId::from_u64((inner.spans.len() + 1) as _);
-			inner.spans.insert(span.metadata().name());
+			let mut f = FieldConsumer("name", None);
+			span.record(&mut f);
+			inner.spans.insert(f.1.unwrap_or_else(||span.metadata().name().to_owned()));
 			id
 		}
 
@@ -196,5 +208,4 @@ fn test_tracing() {
 
 	let inner = subscriber.0.lock().unwrap();
 	assert!(inner.spans.contains("return_input_version_1"));
-	assert!(inner.spans.contains("ext_test_api_return_input_version_1"));
-}
+}