aboutsummaryrefslogtreecommitdiffstats
path: root/accounts/abi/bind/backend.go
diff options
context:
space:
mode:
authorJanos Guljas <janos@resenje.org>2018-02-09 19:23:30 +0800
committerJanos Guljas <janos@resenje.org>2018-02-22 21:23:17 +0800
commita3a07350dcef0ba39829a20d8ddba4bd3463d293 (patch)
tree100f2515cadd92105537a12e6981fab2193435ee /accounts/abi/bind/backend.go
parent820cf09c98706f71d4b02b6c25e62db15830f3fb (diff)
parent1a4e68721a901e86322631fed1191025a6d14c52 (diff)
downloaddexon-a3a07350dcef0ba39829a20d8ddba4bd3463d293.tar.gz
dexon-a3a07350dcef0ba39829a20d8ddba4bd3463d293.tar.zst
dexon-a3a07350dcef0ba39829a20d8ddba4bd3463d293.zip
swarm, cmd/swarm: Merge branch 'master' into multiple-ens-endpoints
Diffstat (limited to 'accounts/abi/bind/backend.go')
-rw-r--r--accounts/abi/bind/backend.go29
1 files changed, 22 insertions, 7 deletions
diff --git a/accounts/abi/bind/backend.go b/accounts/abi/bind/backend.go
index 25b61928e..ca60cc1b4 100644
--- a/accounts/abi/bind/backend.go
+++ b/accounts/abi/bind/backend.go
@@ -52,12 +52,6 @@ type ContractCaller interface {
CallContract(ctx context.Context, call ethereum.CallMsg, blockNumber *big.Int) ([]byte, error)
}
-// DeployBackend wraps the operations needed by WaitMined and WaitDeployed.
-type DeployBackend interface {
- TransactionReceipt(ctx context.Context, txHash common.Hash) (*types.Receipt, error)
- CodeAt(ctx context.Context, account common.Address, blockNumber *big.Int) ([]byte, error)
-}
-
// PendingContractCaller defines methods to perform contract calls on the pending state.
// Call will try to discover this interface when access to the pending state is requested.
// If the backend does not support the pending state, Call returns ErrNoPendingState.
@@ -85,13 +79,34 @@ type ContractTransactor interface {
// There is no guarantee that this is the true gas limit requirement as other
// transactions may be added or removed by miners, but it should provide a basis
// for setting a reasonable default.
- EstimateGas(ctx context.Context, call ethereum.CallMsg) (usedGas *big.Int, err error)
+ EstimateGas(ctx context.Context, call ethereum.CallMsg) (gas uint64, err error)
// SendTransaction injects the transaction into the pending pool for execution.
SendTransaction(ctx context.Context, tx *types.Transaction) error
}
+// ContractFilterer defines the methods needed to access log events using one-off
+// queries or continuous event subscriptions.
+type ContractFilterer interface {
+ // FilterLogs executes a log filter operation, blocking during execution and
+ // returning all the results in one batch.
+ //
+ // TODO(karalabe): Deprecate when the subscription one can return past data too.
+ FilterLogs(ctx context.Context, query ethereum.FilterQuery) ([]types.Log, error)
+
+ // SubscribeFilterLogs creates a background log filtering operation, returning
+ // a subscription immediately, which can be used to stream the found events.
+ SubscribeFilterLogs(ctx context.Context, query ethereum.FilterQuery, ch chan<- types.Log) (ethereum.Subscription, error)
+}
+
+// DeployBackend wraps the operations needed by WaitMined and WaitDeployed.
+type DeployBackend interface {
+ TransactionReceipt(ctx context.Context, txHash common.Hash) (*types.Receipt, error)
+ CodeAt(ctx context.Context, account common.Address, blockNumber *big.Int) ([]byte, error)
+}
+
// ContractBackend defines the methods needed to work with contracts on a read-write basis.
type ContractBackend interface {
ContractCaller
ContractTransactor
+ ContractFilterer
}