compute

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Published: Apr 1, 2020 License: AGPL-3.0 Imports: 14 Imported by: 0

README

Wasm Module

This should be a brief overview of the functionality

Configuration

You can add the following section to config/app.toml. Below is shown with defaults:

[wasm]
# This is the maximum sdk gas (wasm and storage) that we allow for any x/compute "smart" queries
query_gas_limit = 300000
# This is the number of wasm vm instances we keep cached in memory for speed-up
# Warning: this is currently unstable and may lead to crashes, best to keep for 0 unless testing locally
lru_size = 0

Events

A number of events are returned to allow good indexing of the transactions from smart contracts.

Every call to Instantiate or Execute will be tagged with the info on the contract that was executed and who executed it. It should look something like this (with different addresses). The module is always wasm, and code_id is only present when Instantiating a contract, so you can subscribe to new instances, it is omitted on Execute. There is also an action tag which is auto-added by the Cosmos SDK and has a value of either store-code, instantiate or execute depending on which message was sent:

{
  "Type": "message",
  "Attr": [
    {
      "key": "module",
      "value": "wasm"
    },
    {
      "key": "action",
      "value": "instantiate"
    },
    {
      "key": "signer",
      "value": "cosmos1vx8knpllrj7n963p9ttd80w47kpacrhuts497x"
    },
    {
      "key": "code_id",
      "value": "1"
    },
    {
      "key": "contract_address",
      "value": "cosmos18vd8fpwxzck93qlwghaj6arh4p7c5n89uzcee5"
    }
  ]
}

If any funds were transferred to the contract as part of the message, or if the contract released funds as part of it's executions, it will receive the typical events associated with sending tokens from bank. In this case, we instantiate the contract and provide a initial balance in the same MsgInstantiateContract. We see the following events in addition to the above one:

[
  {
    "Type": "transfer",
    "Attr": [
      {
        "key": "recipient",
        "value": "cosmos18vd8fpwxzck93qlwghaj6arh4p7c5n89uzcee5"
      },
      {
        "key": "sender",
        "value": "cosmos1ffnqn02ft2psvyv4dyr56nnv6plllf9pm2kpmv"
      },
      {
        "key": "amount",
        "value": "100000denom"
      }
    ]
  }
]

Finally, the contract itself can emit a "custom event" on Execute only (not on Init). There is one event per contract, so if one contract calls a second contract, you may receive one event for the original contract and one for the re-invoked contract. All attributes from the contract are passed through verbatim, and we add a contract_address attribute that contains the actual contract that emitted that event. Here is an example from the escrow contract successfully releasing funds to the destination address:

{
  "Type": "wasm",
  "Attr": [
    {
      "key": "contract_address",
      "value": "cosmos18vd8fpwxzck93qlwghaj6arh4p7c5n89uzcee5"
    },
    {
      "key": "action",
      "value": "release"
    },
    {
      "key": "destination",
      "value": "cosmos14k7v7ms4jxkk2etmg9gljxjm4ru3qjdugfsflq"
    }
  ]
}
Pulling this all together

We will invoke an escrow contract to release to the designated beneficiary. The escrow was previously loaded with 100000denom (from the above example). In this transaction, we send 5000denom along with the MsgExecuteContract and the contract releases the entire funds (105000denom) to the beneficiary.

We will see all the following events, where you should be able to reconstruct the actions (remember there are two events for each transfer). We see (1) the initial transfer of funds to the contract, (2) the contract custom event that it released funds (3) the transfer of funds from the contract to the beneficiary and (4) the generic x/compute event stating that the contract was executed (which always appears, while 2 is optional and has information as reliable as the contract):

[
  {
    "Type": "transfer",
    "Attr": [
      {
        "key": "recipient",
        "value": "cosmos18vd8fpwxzck93qlwghaj6arh4p7c5n89uzcee5"
      },
      {
        "key": "sender",
        "value": "cosmos1zm074khx32hqy20hlshlsd423n07pwlu9cpt37"
      },
      {
        "key": "amount",
        "value": "5000denom"
      }
    ]
  },
  {
    "Type": "wasm",
    "Attr": [
      {
        "key": "contract_address",
        "value": "cosmos18vd8fpwxzck93qlwghaj6arh4p7c5n89uzcee5"
      },
      {
        "key": "action",
        "value": "release"
      },
      {
        "key": "destination",
        "value": "cosmos14k7v7ms4jxkk2etmg9gljxjm4ru3qjdugfsflq"
      }
    ]
  },
  {
    "Type": "transfer",
    "Attr": [
      {
        "key": "recipient",
        "value": "cosmos14k7v7ms4jxkk2etmg9gljxjm4ru3qjdugfsflq"
      },
      {
        "key": "sender",
        "value": "cosmos18vd8fpwxzck93qlwghaj6arh4p7c5n89uzcee5"
      },
      {
        "key": "amount",
        "value": "105000denom"
      }
    ]
  },
  {
    "Type": "message",
    "Attr": [
      {
        "key": "module",
        "value": "wasm"
      },
      {
        "key": "action",
        "value": "execute"
      },
      {
        "key": "signer",
        "value": "cosmos1zm074khx32hqy20hlshlsd423n07pwlu9cpt37"
      },
      {
        "key": "contract_address",
        "value": "cosmos18vd8fpwxzck93qlwghaj6arh4p7c5n89uzcee5"
      }
    ]
  }
]

A note on this format. This is what we return from our module. However, it seems to me that many events with the same Type get merged together somewhere along the stack, so in this case, you may end up with one "transfer" event with the info for both transfers. Double check when evaluating the event logs, I will document better with more experience, especially when I find out the entire path for the events.

Messages

TODO

CLI

TODO - working, but not the nicest interface (json + bash = bleh). Use to upload, but I suggest to focus on frontend / js tooling

Rest

TODO - main supported interface, under rapid change

Documentation

Overview

nolint autogenerated code using github.com/rigelrozanski/multitool aliases generated for the following subdirectories: ALIASGEN: github.com/enigmampc/EnigmaBlockchain/x/compute/internal/types ALIASGEN: github.com/enigmampc/EnigmaBlockchain/x/compute/internal/keeper

Index

Constants

View Source
const (
	ModuleName                    = types.ModuleName
	StoreKey                      = types.StoreKey
	TStoreKey                     = types.TStoreKey
	QuerierRoute                  = types.QuerierRoute
	RouterKey                     = types.RouterKey
	MaxWasmSize                   = types.MaxWasmSize
	GasMultiplier                 = keeper.GasMultiplier
	MaxGas                        = keeper.MaxGas
	QueryGetContract              = keeper.QueryGetContract
	QueryGetContractState         = keeper.QueryGetContractState
	QueryGetCode                  = keeper.QueryGetCode
	QueryListCode                 = keeper.QueryListCode
	QueryListContractByCode       = keeper.QueryListContractByCode
	QueryMethodContractStateSmart = keeper.QueryMethodContractStateSmart
	QueryMethodContractStateAll   = keeper.QueryMethodContractStateAll
	QueryMethodContractStateRaw   = keeper.QueryMethodContractStateRaw
)
View Source
const (
	AttributeKeyContract = "contract_address"
	AttributeKeyCodeID   = "code_id"
	AttributeSigner      = "signer"
)

Variables

View Source
var (
	// functions aliases
	RegisterCodec             = types.RegisterCodec
	ValidateGenesis           = types.ValidateGenesis
	GetCodeKey                = types.GetCodeKey
	GetContractAddressKey     = types.GetContractAddressKey
	GetContractStorePrefixKey = types.GetContractStorePrefixKey
	NewCodeInfo               = types.NewCodeInfo
	NewParams                 = types.NewParams
	NewWasmCoins              = types.NewWasmCoins
	NewContractInfo           = types.NewContractInfo
	CosmosResult              = types.CosmosResult
	DefaultWasmConfig         = types.DefaultWasmConfig
	InitGenesis               = keeper.InitGenesis
	ExportGenesis             = keeper.ExportGenesis
	NewKeeper                 = keeper.NewKeeper
	NewQuerier                = keeper.NewQuerier
	MakeTestCodec             = keeper.MakeTestCodec
	CreateTestInput           = keeper.CreateTestInput

	// variable aliases
	ModuleCdc            = types.ModuleCdc
	DefaultCodespace     = types.DefaultCodespace
	ErrCreateFailed      = types.ErrCreateFailed
	ErrAccountExists     = types.ErrAccountExists
	ErrInstantiateFailed = types.ErrInstantiateFailed
	ErrExecuteFailed     = types.ErrExecuteFailed
	ErrGasLimit          = types.ErrGasLimit
	ErrInvalidGenesis    = types.ErrInvalidGenesis
	ErrNotFound          = types.ErrNotFound
	ErrQueryFailed       = types.ErrQueryFailed
	KeyLastCodeID        = types.KeyLastCodeID
	KeyLastInstanceID    = types.KeyLastInstanceID
	CodeKeyPrefix        = types.CodeKeyPrefix
	ContractKeyPrefix    = types.ContractKeyPrefix
	ContractStorePrefix  = types.ContractStorePrefix
)

Functions

func NewHandler

func NewHandler(k Keeper) sdk.Handler

NewHandler returns a handler for "bank" type messages.

Types

type AppModule

type AppModule struct {
	AppModuleBasic
	// contains filtered or unexported fields
}

AppModule implements an application module for the compute module.

func NewAppModule

func NewAppModule(keeper Keeper) AppModule

NewAppModule creates a new AppModule object

func (AppModule) BeginBlock

func (am AppModule) BeginBlock(_ sdk.Context, _ abci.RequestBeginBlock)

BeginBlock returns the begin blocker for the compute module.

func (AppModule) EndBlock

EndBlock returns the end blocker for the compute module. It returns no validator updates.

func (AppModule) ExportGenesis

func (am AppModule) ExportGenesis(ctx sdk.Context) json.RawMessage

ExportGenesis returns the exported genesis state as raw bytes for the compute module.

func (AppModule) InitGenesis

func (am AppModule) InitGenesis(ctx sdk.Context, data json.RawMessage) []abci.ValidatorUpdate

InitGenesis performs genesis initialization for the compute module. It returns no validator updates.

func (AppModule) Name

func (AppModule) Name() string

Name returns the compute module's name.

func (AppModule) NewHandler

func (am AppModule) NewHandler() sdk.Handler

NewHandler returns an sdk.Handler for the compute module.

func (AppModule) NewQuerierHandler

func (am AppModule) NewQuerierHandler() sdk.Querier

NewQuerierHandler returns the compute module sdk.Querier.

func (AppModule) QuerierRoute

func (AppModule) QuerierRoute() string

QuerierRoute returns the compute module's querier route name.

func (AppModule) RegisterInvariants

func (am AppModule) RegisterInvariants(ir sdk.InvariantRegistry)

RegisterInvariants registers the compute module invariants.

func (AppModule) Route

func (AppModule) Route() string

Route returns the message routing key for the compute module.

type AppModuleBasic

type AppModuleBasic struct{}

AppModuleBasic defines the basic application module used by the compute module.

func (AppModuleBasic) DefaultGenesis

func (AppModuleBasic) DefaultGenesis() json.RawMessage

DefaultGenesis returns default genesis state as raw bytes for the compute module.

func (AppModuleBasic) GetQueryCmd

func (AppModuleBasic) GetQueryCmd(cdc *codec.Codec) *cobra.Command

GetQueryCmd returns no root query command for the compute module.

func (AppModuleBasic) GetTxCmd

func (AppModuleBasic) GetTxCmd(cdc *codec.Codec) *cobra.Command

GetTxCmd returns the root tx command for the compute module.

func (AppModuleBasic) Name

func (AppModuleBasic) Name() string

Name returns the compute module's name.

func (AppModuleBasic) RegisterCodec

func (AppModuleBasic) RegisterCodec(cdc *codec.Codec)

RegisterCodec registers the compute module's types for the given codec.

func (AppModuleBasic) RegisterRESTRoutes

func (AppModuleBasic) RegisterRESTRoutes(ctx context.CLIContext, rtr *mux.Router)

RegisterRESTRoutes registers the REST routes for the compute module.

func (AppModuleBasic) ValidateGenesis

func (AppModuleBasic) ValidateGenesis(bz json.RawMessage) error

ValidateGenesis performs genesis state validation for the compute module.

type Code

type Code = types.Code

type CodeInfo

type CodeInfo = types.CodeInfo

type Contract

type Contract = types.Contract

type ContractInfo

type ContractInfo = types.ContractInfo

type ContractInfoWithAddress

type ContractInfoWithAddress = keeper.ContractInfoWithAddress

type GenesisState

type GenesisState = types.GenesisState

type GetCodeResponse

type GetCodeResponse = keeper.GetCodeResponse

type Keeper

type Keeper = keeper.Keeper

type ListCodeResponse

type ListCodeResponse = keeper.ListCodeResponse

type Model

type Model = types.Model

type MsgExecuteContract

type MsgExecuteContract = types.MsgExecuteContract

type MsgInstantiateContract

type MsgInstantiateContract = types.MsgInstantiateContract

type MsgStoreCode

type MsgStoreCode = types.MsgStoreCode

type WasmConfig

type WasmConfig = types.WasmConfig

Directories

Path Synopsis
client
cli
internal

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