Add bindings for the pinned metrics

flake.nix

@@ -0,0 +1,36 @@
+{
+  description = "Devshell flake";
+
+  inputs = {
+    flake-utils.url = "github:numtide/flake-utils";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    rust-overlay = {
+      inputs = {
+        flake-utils.follows = "flake-utils";
+        nixpkgs.follows = "nixpkgs";
+      };
+      url = "github:oxalica/rust-overlay";
+    };
+  };
+
+  outputs = { self, nixpkgs, flake-utils, rust-overlay } @ inputs:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        overlays = [ (import rust-overlay) ];
+        pkgs = import nixpkgs {
+          inherit overlays system;
+        };
+      in
+      {
+        formatter = pkgs.nixpkgs-fmt;
+
+        devShells.default = pkgs.mkShell {
+          buildInputs = with pkgs; [
+            go
+            gofumpt
+            golangci-lint
+          ];
+        };
+      }
+    );
+}

go.mod

@@ -4,13 +4,14 @@ go 1.21
 
 require (
 	github.com/google/btree v1.0.0
+	github.com/shamaton/msgpack/v2 v2.2.0
 	github.com/stretchr/testify v1.8.1
 	golang.org/x/sys v0.16.0
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/kr/pretty v0.1.0 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect

go.sum

@@ -1,15 +1,20 @@
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/google/btree v1.0.0 h1:0udJVsspx3VBr5FwtLhQQtuAsVc79tTq0ocGIPAU6qo=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
-github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
-github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
-github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
-github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
+github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
+github.com/shamaton/msgpack/v2 v2.2.0 h1:IP1m01pHwCrMa6ZccP9B3bqxEMKMSmMVAVKk54g3L/Y=
+github.com/shamaton/msgpack/v2 v2.2.0/go.mod h1:6khjYnkx73f7VQU7wjcFS9DFjs+59naVWJv1TB7qdOI=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=

internal/api/bindings.h

@@ -441,6 +441,8 @@ struct AnalysisReport analyze_code(struct cache_t *cache,
 
 struct Metrics get_metrics(struct cache_t *cache, struct UnmanagedVector *error_msg);
 
+struct UnmanagedVector get_pinned_metrics(struct cache_t *cache, struct UnmanagedVector *error_msg);
+
 /**
  * frees a cache reference
  *

internal/api/lib.go

@@ -190,6 +190,21 @@ func GetMetrics(cache Cache) (*types.Metrics, error) {
 	}, nil
 }
 
+func GetPinnedMetrics(cache Cache) (*types.PinnedMetrics, error) {
+	errmsg := uninitializedUnmanagedVector()
+	metrics, err := C.get_pinned_metrics(cache.ptr, &errmsg)
+	if err != nil {
+		return nil, errorWithMessage(err, errmsg)
+	}
+
+	var pinnedMetrics types.PinnedMetrics
+	if err := pinnedMetrics.UnmarshalMessagePack(copyAndDestroyUnmanagedVector(metrics)); err != nil {
+		return nil, err
+	}
+
+	return &pinnedMetrics, nil
+}
+
 func Instantiate(
 	cache Cache,
 	checksum []byte,

internal/api/lib_test.go

@@ -1,6 +1,7 @@
 package api
 
 import (
+	"bytes"
 	"crypto/sha256"
 	"encoding/hex"
 	"encoding/json"
@@ -382,6 +383,85 @@ func TestGetMetrics(t *testing.T) {
 	require.InEpsilon(t, 3700000, metrics.SizeMemoryCache, 0.25)
 }
 
+func TestGetPinnedMetrics(t *testing.T) {
+	cache, cleanup := withCache(t)
+	defer cleanup()
+
+	// GetMetrics 1
+	metrics, err := GetPinnedMetrics(cache)
+	require.NoError(t, err)
+	assert.Equal(t, &types.PinnedMetrics{PerModule: make([]types.PerModuleEntry, 0)}, metrics)
+
+	// Store contract 1
+	wasm, err := os.ReadFile("../../testdata/hackatom.wasm")
+	require.NoError(t, err)
+	checksum, err := StoreCode(cache, wasm)
+	require.NoError(t, err)
+
+	err = Pin(cache, checksum)
+	require.NoError(t, err)
+
+	// Store contract 2
+	cyberpunkWasm, err := os.ReadFile("../../testdata/cyberpunk.wasm")
+	require.NoError(t, err)
+	cyberpunkChecksum, err := StoreCode(cache, cyberpunkWasm)
+	require.NoError(t, err)
+
+	err = Pin(cache, cyberpunkChecksum)
+	require.NoError(t, err)
+
+	findMetrics := func(list []types.PerModuleEntry, checksum types.Checksum) *types.PerModuleMetrics {
+		found := (*types.PerModuleMetrics)(nil)
+
+		for _, structure := range list {
+			if bytes.Equal(structure.Checksum, checksum) {
+				found = &structure.Metrics
+				break
+			}
+		}
+
+		return found
+	}
+
+	// GetMetrics 2
+	metrics, err = GetPinnedMetrics(cache)
+	require.NoError(t, err)
+	assert.Equal(t, 2, len(metrics.PerModule))
+
+	hackatomMetrics := findMetrics(metrics.PerModule, checksum)
+	cyberpunkMetrics := findMetrics(metrics.PerModule, cyberpunkChecksum)
+
+	assert.Equal(t, uint32(0), hackatomMetrics.Hits)
+	assert.NotEqual(t, uint32(0), hackatomMetrics.Size)
+	assert.Equal(t, uint32(0), cyberpunkMetrics.Hits)
+	assert.NotEqual(t, uint32(0), cyberpunkMetrics.Size)
+
+	// Instantiate 1
+	gasMeter := NewMockGasMeter(TESTING_GAS_LIMIT)
+	igasMeter := types.GasMeter(gasMeter)
+	store := NewLookup(gasMeter)
+	api := NewMockAPI()
+	querier := DefaultQuerier(MOCK_CONTRACT_ADDR, types.Array[types.Coin]{types.NewCoin(100, "ATOM")})
+	env := MockEnvBin(t)
+	info := MockInfoBin(t, "creator")
+	msg1 := []byte(`{"verifier": "fred", "beneficiary": "bob"}`)
+	_, _, err = Instantiate(cache, checksum, env, info, msg1, &igasMeter, store, api, &querier, TESTING_GAS_LIMIT, TESTING_PRINT_DEBUG)
+	require.NoError(t, err)
+
+	// GetMetrics 3
+	metrics, err = GetPinnedMetrics(cache)
+	require.NoError(t, err)
+	assert.Equal(t, 2, len(metrics.PerModule))
+
+	hackatomMetrics = findMetrics(metrics.PerModule, checksum)
+	cyberpunkMetrics = findMetrics(metrics.PerModule, cyberpunkChecksum)
+
+	assert.Equal(t, uint32(1), hackatomMetrics.Hits)
+	assert.NotEqual(t, uint32(0), hackatomMetrics.Size)
+	assert.Equal(t, uint32(0), cyberpunkMetrics.Hits)
+	assert.NotEqual(t, uint32(0), cyberpunkMetrics.Size)
+}
+
 func TestInstantiate(t *testing.T) {
 	cache, cleanup := withCache(t)
 	defer cleanup()

libwasmvm/Cargo.toml

@@ -29,6 +29,8 @@ backtraces = []
 cosmwasm-std = { git = "https://github.com/CosmWasm/cosmwasm.git", rev = "v2.1.0-rc.1", features = ["staking", "stargate", "iterator"] }
 cosmwasm-vm = { git = "https://github.com/CosmWasm/cosmwasm.git", rev = "v2.1.0-rc.1", features = ["staking", "stargate", "iterator"] }
 errno = "0.3.8"
+rmp-serde = "1.1.2"
+serde = { version = "1.0.103", features = ["derive"] }
 serde_json = "1.0.91"
 thiserror = "1.0.38"
 hex = "0.4.3"

libwasmvm/bindings.h

@@ -441,6 +441,8 @@ struct AnalysisReport analyze_code(struct cache_t *cache,
 
 struct Metrics get_metrics(struct cache_t *cache, struct UnmanagedVector *error_msg);
 
+struct UnmanagedVector get_pinned_metrics(struct cache_t *cache, struct UnmanagedVector *error_msg);
+
 /**
  * frees a cache reference
  *