Full go

cmd/demo/main.go

@@ -2,55 +2,47 @@ package main
 
 import (
 	"fmt"
-	"math"
 	"os"
 
 	wasmvm "github.com/CosmWasm/wasmvm/v2"
+	"github.com/CosmWasm/wasmvm/v2/types"
 )
 
-const (
-	PRINT_DEBUG  = true
-	MEMORY_LIMIT = 32  // MiB
-	CACHE_SIZE   = 100 // MiB
-)
-
-var SUPPORTED_CAPABILITIES = []string{"staking"}
-
-// This is just a demo to ensure we can compile a static go binary
 func main() {
-	file := os.Args[1]
-
-	if file == "version" {
-		libwasmvmVersion, err := wasmvm.LibwasmvmVersion()
-		if err != nil {
-			panic(err)
-		}
-		fmt.Printf("libwasmvm: %s\n", libwasmvmVersion)
-		return
+	if len(os.Args) != 2 {
+		fmt.Fprintf(os.Stderr, "Usage: %s <wasmFile>\n", os.Args[0])
+		os.Exit(1)
 	}
-
-	fmt.Printf("Running %s...\n", file)
-	bz, err := os.ReadFile(file)
-	if err != nil {
-		panic(err)
+	wasmFile := os.Args[1]
+
+	config := types.VMConfig{
+		WasmLimits: types.WasmLimits{},
+		Cache: types.CacheOptions{
+			BaseDir:                  os.TempDir(),
+			AvailableCapabilities:    []string{"staking", "stargate", "iterator"},
+			MemoryCacheSizeBytes:     types.NewSizeKibi(100 * 1024), // 100 MiB
+			InstanceMemoryLimitBytes: types.NewSizeKibi(32 * 1024),  // 32 MiB
+		},
 	}
-	fmt.Println("Loaded!")
 
-	err = os.MkdirAll("tmp", 0o755)
+	vm, err := wasmvm.NewVM(config)
 	if err != nil {
-		panic(err)
+		fmt.Fprintf(os.Stderr, "Failed to create VM: %v\n", err)
+		os.Exit(1)
 	}
-	vm, err := wasmvm.NewVM("tmp", SUPPORTED_CAPABILITIES, MEMORY_LIMIT, PRINT_DEBUG, CACHE_SIZE)
+	defer vm.Cleanup()
+
+	code, err := os.ReadFile(wasmFile)
 	if err != nil {
-		panic(err)
+		fmt.Fprintf(os.Stderr, "Failed to read Wasm file: %v\n", err)
+		os.Exit(1)
 	}
 
-	checksum, _, err := vm.StoreCode(bz, math.MaxUint64)
+	checksum, _, err := vm.StoreCode(code, 500_000_000_000)
 	if err != nil {
-		panic(err)
+		fmt.Fprintf(os.Stderr, "Failed to store code: %v\n", err)
+		os.Exit(1)
 	}
-	fmt.Printf("Stored code with checksum: %X\n", checksum)
 
-	vm.Cleanup()
-	fmt.Println("finished")
+	fmt.Printf("Code stored with checksum: %X\n", checksum)
 }

go.mod

@@ -1,12 +1,12 @@
 module github.com/CosmWasm/wasmvm/v2
 
-go 1.21
+go 1.23
 
 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
+	github.com/tetratelabs/wazero v1.8.2
 )
 
 require (

go.sum

@@ -22,8 +22,8 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
-golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+github.com/tetratelabs/wazero v1.8.2 h1:yIgLR/b2bN31bjxwXHD8a3d+BogigR952csSDdLYEv4=
+github.com/tetratelabs/wazero v1.8.2/go.mod h1:yAI0XTsMBhREkM/YDAK/zNou3GoiAce1P6+rp/wQhjs=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

ibc_test.go

@@ -1,5 +1,3 @@
-//go:build cgo && !nolink_libwasmvm
-
 package cosmwasm
 
 import (