wasmhost

package
v0.4.0-alpha.2 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Dec 23, 2022 License: Apache-2.0, BSD-2-Clause Imports: 21 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	FuncAbort        = "abort"
	FuncFdWrite      = "fd_write"
	FuncHostStateGet = "hostStateGet"
	FuncHostStateSet = "hostStateSet"
	ModuleEnv        = "env"
	ModuleWasi1      = "wasi_unstable"
	ModuleWasi2      = "wasi_snapshot_preview1"
	ModuleWasmLib    = "WasmLib"
)
View Source 
const (
	FuncDefault = "_default"
)

Variables

View Source 
var (
	// DisableWasmTimeout can be used to disable the annoying timeout during debugging
	DisableWasmTimeout = true

	// HostTracing turns on debug tracing for ScHost calls
	HostTracing = false

	// WasmTimeout set this to non-zero for a one-time override of the defaultTimeout
	WasmTimeout = 0 * time.Second
)
View Source 
var EventSubscribers []func(msg string)
View Source 
var GoWasmVM func() WasmVM

Functions

func Connect 

func Connect(h wasmlib.ScHost) wasmlib.ScHost

provide implementation for Wasm-only function

func GetProcessor 

func GetProcessor(wasmBytes []byte, log *logger.Logger) (isc.VMProcessor, error)

GetProcessor creates a new Wasm VM processor.

Types

type ISandbox 

type ISandbox interface {
	Call(funcNr int32, params []byte) []byte
	Tracef(format string, args ...interface{})
}

type ScOnloadFunc 

type ScOnloadFunc func(index int32)

type WasmContext 

type WasmContext struct {
	// contains filtered or unexported fields
}

func NewWasmContext 

func NewWasmContext(proc *WasmProcessor, function string) *WasmContext

func NewWasmContextForSoloContext 

func NewWasmContextForSoloContext(function string, sandbox ISandbox) *WasmContext

func (*WasmContext) Call 

func (wc *WasmContext) Call(ctx interface{}) dict.Dict

func (*WasmContext) ExportName 

func (wc *WasmContext) ExportName(index int32, name string)

func (*WasmContext) FunctionFromCode 

func (wc *WasmContext) FunctionFromCode(code uint32) string

func (*WasmContext) GasBudget added in v0.3.0 

func (wc *WasmContext) GasBudget() uint64

GasBudget is a callback from the VM that asks for the remaining gas budget of the Wasp sandbox. The VM will update the gas budget for the Wasm code with this value just before returning to the Wasm code.

func (*WasmContext) GasBurned added in v0.3.0 

func (wc *WasmContext) GasBurned(burned uint64)

GasBurned is a callback from the VM that sets the remaining gas budget. It will update the gas budget for the Wasp sandbox with the amount of gas burned by the Wasm code thus far just before calling sandbox.

func (*WasmContext) GasDisable added in v0.3.0 

func (wc *WasmContext) GasDisable(disable bool)

func (*WasmContext) IsView 

func (wc *WasmContext) IsView() bool

func (*WasmContext) RunScFunction added in v0.3.0 

func (wc *WasmContext) RunScFunction(functionName string) (err error)

func (*WasmContext) Sandbox 

func (wc *WasmContext) Sandbox(funcNr int32, params []byte) []byte

func (*WasmContext) StateDelete 

func (wc *WasmContext) StateDelete(key []byte)

func (*WasmContext) StateExists 

func (wc *WasmContext) StateExists(key []byte) bool

func (*WasmContext) StateGet 

func (wc *WasmContext) StateGet(key []byte) []byte

func (*WasmContext) StateSet 

func (wc *WasmContext) StateSet(key, value []byte)

type WasmContextSandbox 

type WasmContextSandbox struct {
	// contains filtered or unexported fields
}

WasmContextSandbox is the host side of the WasmLib Sandbox interface It acts as a change-resistant layer to wrap changes to the ISC sandbox, to limit bothering users of WasmLib as little as possible with those changes.

func NewWasmContextSandbox 

func NewWasmContextSandbox(wc *WasmContext, ctx interface{}) *WasmContextSandbox

func (*WasmContextSandbox) Call 

func (s *WasmContextSandbox) Call(funcNr int32, params []byte) []byte

func (*WasmContextSandbox) Panicf 

func (s *WasmContextSandbox) Panicf(format string, args ...interface{})

func (*WasmContextSandbox) Tracef 

func (s *WasmContextSandbox) Tracef(format string, args ...interface{})

type WasmConvertor 

type WasmConvertor struct{}

WasmConvertor converts ISC data types to WasmLib data types

func (WasmConvertor) IscAddress added in v0.3.0 

func (cvt WasmConvertor) IscAddress(scAddress *wasmtypes.ScAddress) iotago.Address

func (WasmConvertor) IscAgentID added in v0.3.0 

func (cvt WasmConvertor) IscAgentID(scAgentID *wasmtypes.ScAgentID) isc.AgentID

func (WasmConvertor) IscAllowance added in v0.3.0 

func (cvt WasmConvertor) IscAllowance(assets *wasmlib.ScAssets) *isc.Allowance

func (WasmConvertor) IscBigInt added in v0.3.0 

func (cvt WasmConvertor) IscBigInt(amount wasmtypes.ScBigInt) *big.Int

func (WasmConvertor) IscChainID added in v0.3.0 

func (cvt WasmConvertor) IscChainID(chainID *wasmtypes.ScChainID) isc.ChainID

func (WasmConvertor) IscHash added in v0.3.0 

func (cvt WasmConvertor) IscHash(hash *wasmtypes.ScHash) *hashing.HashValue

func (WasmConvertor) IscHname added in v0.3.0 

func (cvt WasmConvertor) IscHname(hname wasmtypes.ScHname) isc.Hname

func (WasmConvertor) IscNFTID added in v0.3.0 

func (cvt WasmConvertor) IscNFTID(nftID *wasmtypes.ScNftID) *iotago.NFTID

func (WasmConvertor) IscRequestID added in v0.3.0 

func (cvt WasmConvertor) IscRequestID(requestID *wasmtypes.ScRequestID) *isc.RequestID

func (WasmConvertor) IscTokenID added in v0.3.0 

func (cvt WasmConvertor) IscTokenID(tokenID *wasmtypes.ScTokenID) *iotago.NativeTokenID

func (WasmConvertor) ScAddress 

func (cvt WasmConvertor) ScAddress(address iotago.Address) wasmtypes.ScAddress

func (WasmConvertor) ScAgentID 

func (cvt WasmConvertor) ScAgentID(agentID isc.AgentID) wasmtypes.ScAgentID

func (WasmConvertor) ScBalances added in v0.3.0 

func (cvt WasmConvertor) ScBalances(allowance *isc.Allowance) *wasmlib.ScBalances

func (WasmConvertor) ScBigInt added in v0.3.0 

func (cvt WasmConvertor) ScBigInt(bigInt *big.Int) wasmtypes.ScBigInt

func (WasmConvertor) ScChainID 

func (cvt WasmConvertor) ScChainID(chainID isc.ChainID) wasmtypes.ScChainID

func (WasmConvertor) ScHash 

func (cvt WasmConvertor) ScHash(hash hashing.HashValue) wasmtypes.ScHash

func (WasmConvertor) ScHname 

func (cvt WasmConvertor) ScHname(hname isc.Hname) wasmtypes.ScHname

func (WasmConvertor) ScNftID added in v0.3.0 

func (cvt WasmConvertor) ScNftID(nftID *iotago.NFTID) wasmtypes.ScNftID

func (WasmConvertor) ScRequestID 

func (cvt WasmConvertor) ScRequestID(requestID isc.RequestID) wasmtypes.ScRequestID

func (WasmConvertor) ScTokenID added in v0.3.0 

func (cvt WasmConvertor) ScTokenID(tokenID *iotago.NativeTokenID) wasmtypes.ScTokenID

func (WasmConvertor) ToBigInt added in v0.3.0 

func (cvt WasmConvertor) ToBigInt(amount interface{}) *big.Int

type WasmFuncTable 

type WasmFuncTable struct {
	// contains filtered or unexported fields
}

func NewWasmFuncTable 

func NewWasmFuncTable() *WasmFuncTable

func (*WasmFuncTable) FunctionFromCode 

func (t *WasmFuncTable) FunctionFromCode(code uint32) string

func (*WasmFuncTable) SetExport 

func (t *WasmFuncTable) SetExport(index int32, functionName string)

type WasmGoVM 

type WasmGoVM struct {
	WasmVMBase
	// contains filtered or unexported fields
}

func (*WasmGoVM) Interrupt 

func (vm *WasmGoVM) Interrupt()

func (*WasmGoVM) LoadWasm 

func (vm *WasmGoVM) LoadWasm(wasmData []byte) error

func (*WasmGoVM) NewInstance 

func (vm *WasmGoVM) NewInstance(wc *WasmContext) WasmVM

func (*WasmGoVM) RunFunction 

func (vm *WasmGoVM) RunFunction(functionName string, args ...interface{}) error

func (*WasmGoVM) RunScFunction 

func (vm *WasmGoVM) RunScFunction(index int32) (err error)

func (*WasmGoVM) UnsafeMemory 

func (vm *WasmGoVM) UnsafeMemory() []byte

type WasmProcessor 

type WasmProcessor struct {
	// contains filtered or unexported fields
}

func (*WasmProcessor) GetCurrentContext added in v0.3.0 

func (proc *WasmProcessor) GetCurrentContext() *WasmContext

func (*WasmProcessor) GetDefaultEntryPoint 

func (proc *WasmProcessor) GetDefaultEntryPoint() isc.VMProcessorEntryPoint

func (*WasmProcessor) GetDescription 

func (proc *WasmProcessor) GetDescription() string

func (*WasmProcessor) GetEntryPoint 

func (proc *WasmProcessor) GetEntryPoint(code isc.Hname) (isc.VMProcessorEntryPoint, bool)

func (*WasmProcessor) IsView 

func (proc *WasmProcessor) IsView(function string) bool

func (*WasmProcessor) RegisterContext added in v0.3.0 

func (proc *WasmProcessor) RegisterContext(wc *WasmContext)

func (*WasmProcessor) UnregisterContext added in v0.3.0 

func (proc *WasmProcessor) UnregisterContext(wc *WasmContext)

type WasmTimeVM 

type WasmTimeVM struct {
	WasmVMBase
	// contains filtered or unexported fields
}

func (*WasmTimeVM) GasBudget 

func (vm *WasmTimeVM) GasBudget(budget uint64)

GasBudget sets the gas budget for the VM.

func (*WasmTimeVM) GasBurned 

func (vm *WasmTimeVM) GasBurned() uint64

GasBurned will return the gas burned since the last time GasBudget() was called

func (*WasmTimeVM) Interrupt 

func (vm *WasmTimeVM) Interrupt()

func (*WasmTimeVM) LinkHost 

func (vm *WasmTimeVM) LinkHost() (err error)

func (*WasmTimeVM) LoadWasm 

func (vm *WasmTimeVM) LoadWasm(wasmData []byte) (err error)

func (*WasmTimeVM) NewInstance 

func (vm *WasmTimeVM) NewInstance(wc *WasmContext) WasmVM

func (*WasmTimeVM) RunFunction 

func (vm *WasmTimeVM) RunFunction(functionName string, args ...interface{}) error

func (*WasmTimeVM) RunScFunction 

func (vm *WasmTimeVM) RunScFunction(index int32) error

func (*WasmTimeVM) UnsafeMemory 

func (vm *WasmTimeVM) UnsafeMemory() []byte

type WasmVM 

type WasmVM interface {
	GasBudget(budget uint64)
	GasBurned() uint64
	Interrupt()
	LinkHost() error
	LoadWasm(wasmData []byte) error
	NewInstance(wc *WasmContext) WasmVM
	RunFunction(functionName string, args ...interface{}) error
	RunScFunction(index int32) error
	UnsafeMemory() []byte
	VMGetBytes(offset int32, size int32) []byte
	VMGetSize() int32
	VMSetBytes(offset int32, size int32, bytes []byte) int32
}

func NewWasmGoVM 

func NewWasmGoVM(scName string, onLoad ScOnloadFunc) WasmVM

func NewWasmTimeVM 

func NewWasmTimeVM() WasmVM

type WasmVMBase 

type WasmVMBase struct {
	// contains filtered or unexported fields
}

func (*WasmVMBase) GasBudget 

func (vm *WasmVMBase) GasBudget(budget uint64)

func (*WasmVMBase) GasBurned 

func (vm *WasmVMBase) GasBurned() uint64

func (*WasmVMBase) HostAbort 

func (vm *WasmVMBase) HostAbort(errMsg, fileName, line, col int32)

func (*WasmVMBase) HostFdWrite 

func (vm *WasmVMBase) HostFdWrite(fd, iovs, size, written int32) int32

func (*WasmVMBase) HostStateGet 

func (vm *WasmVMBase) HostStateGet(keyRef, keyLen, valRef, valLen int32) int32

func (*WasmVMBase) HostStateSet 

func (vm *WasmVMBase) HostStateSet(keyRef, keyLen, valRef, valLen int32)

func (*WasmVMBase) Instantiate 

func (vm *WasmVMBase) Instantiate(proc *WasmProcessor) error

func (*WasmVMBase) LinkHost 

func (vm *WasmVMBase) LinkHost() error

func (*WasmVMBase) Run 

func (vm *WasmVMBase) Run(runner func() error) (err error)

func (*WasmVMBase) VMGetBytes 

func (vm *WasmVMBase) VMGetBytes(offset, size int32) []byte

func (*WasmVMBase) VMGetSize 

func (vm *WasmVMBase) VMGetSize() int32

func (*WasmVMBase) VMSetBytes 

func (vm *WasmVMBase) VMSetBytes(offset, size int32, bytes []byte) int32

Source Files

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