github.com/koko1123/flow-go-1@v0.29.6/module/mempool/transactions.go (about)

     1  // (c) 2019 Dapper Labs - ALL RIGHTS RESERVED
     2  
     3  package mempool
     4  
     5  import (
     6  	"github.com/koko1123/flow-go-1/model/flow"
     7  )
     8  
     9  // Transactions represents a concurrency-safe memory pool for transactions.
    10  type Transactions interface {
    11  
    12  	// Has checks whether the transaction with the given hash is currently in
    13  	// the memory pool.
    14  	Has(txID flow.Identifier) bool
    15  
    16  	// Add will add the given transaction body to the memory pool. It will
    17  	// return false if it was already in the mempool.
    18  	Add(tx *flow.TransactionBody) bool
    19  
    20  	// Remove will remove the given transaction from the memory pool; it will
    21  	// will return true if the transaction was known and removed.
    22  	Remove(txID flow.Identifier) bool
    23  
    24  	// ByID retrieve the transaction with the given ID from the memory
    25  	// pool. It will return false if it was not found in the mempool.
    26  	ByID(txID flow.Identifier) (*flow.TransactionBody, bool)
    27  
    28  	// Size will return the current size of the memory pool.
    29  	Size() uint
    30  
    31  	// All will retrieve all transactions that are currently in the memory pool
    32  	// as a slice.
    33  	All() []*flow.TransactionBody
    34  
    35  	// Clear removes all transactions from the mempool.
    36  	Clear()
    37  }