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utils.go
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utils.go
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package soltxm
import (
"errors"
"fmt"
"sort"
"sync"
"github.com/gagliardetto/solana-go"
"github.com/gagliardetto/solana-go/rpc"
)
// tx not found
// < tx processed
// < tx confirmed/finalized + revert
// < tx confirmed/finalized + success
const (
NotFound = iota
Processed
ConfirmedRevert
ConfirmedSuccess
)
type statuses struct {
sigs []solana.Signature
res []*rpc.SignatureStatusesResult
}
func (s statuses) Len() int {
return len(s.res)
}
func (s statuses) Swap(i, j int) {
s.sigs[i], s.sigs[j] = s.sigs[j], s.sigs[i]
s.res[i], s.res[j] = s.res[j], s.res[i]
}
func (s statuses) Less(i, j int) bool {
return convertStatus(s.res[i]) > convertStatus(s.res[j]) // returns list with highest first
}
func SortSignaturesAndResults(sigs []solana.Signature, res []*rpc.SignatureStatusesResult) ([]solana.Signature, []*rpc.SignatureStatusesResult, error) {
if len(sigs) != len(res) {
return []solana.Signature{}, []*rpc.SignatureStatusesResult{}, fmt.Errorf("signatures and results lengths do not match")
}
s := statuses{
sigs: sigs,
res: res,
}
sort.Sort(s)
return s.sigs, s.res, nil
}
func convertStatus(res *rpc.SignatureStatusesResult) uint {
if res == nil {
return NotFound
}
if res.ConfirmationStatus == rpc.ConfirmationStatusProcessed {
return Processed
}
if res.ConfirmationStatus == rpc.ConfirmationStatusConfirmed ||
res.ConfirmationStatus == rpc.ConfirmationStatusFinalized {
if res.Err != nil {
return ConfirmedRevert
}
return ConfirmedSuccess
}
return NotFound
}
type signatureList struct {
sigs []solana.Signature
lock sync.RWMutex
wg []*sync.WaitGroup
}
// internal function that should be called using the proper lock
func (s *signatureList) get(index int) (sig solana.Signature, err error) {
if index >= len(s.sigs) {
return sig, errors.New("invalid index")
}
return s.sigs[index], nil
}
func (s *signatureList) Get(index int) (sig solana.Signature, err error) {
s.lock.RLock()
defer s.lock.RUnlock()
return s.get(index)
}
func (s *signatureList) List() []solana.Signature {
s.lock.RLock()
defer s.lock.RUnlock()
return s.sigs
}
func (s *signatureList) Length() int {
s.lock.RLock()
defer s.lock.RUnlock()
return len(s.sigs)
}
func (s *signatureList) Allocate() (index int) {
s.lock.Lock()
defer s.lock.Unlock()
var wg sync.WaitGroup
wg.Add(1)
s.sigs = append(s.sigs, solana.Signature{})
s.wg = append(s.wg, &wg)
return len(s.sigs) - 1
}
func (s *signatureList) Set(index int, sig solana.Signature) error {
s.lock.Lock()
defer s.lock.Unlock()
v, err := s.get(index)
if err != nil {
return err
}
if !v.IsZero() {
return fmt.Errorf("trying to set signature when already set - index: %d, existing: %s, new: %s", index, v, sig)
}
s.sigs[index] = sig
s.wg[index].Done()
return nil
}
func (s *signatureList) Wait(index int) {
wg := &sync.WaitGroup{}
s.lock.RLock()
if index < len(s.wg) {
wg = s.wg[index]
}
s.lock.RUnlock()
wg.Wait()
}