accounting

package
v1.50.10 Latest Latest
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 Go to latest Published: Feb 26, 2020 License: MIT Imports: 19 Imported by: 0

Documentation

Overview

Package accounting providers an accounting and limiting reader

Index

Constants

This section is empty.

Variables

View Source 
var ErrorMaxTransferLimitReached = fserrors.FatalError(errors.New("Max transfer limit reached as set by --max-transfer"))

ErrorMaxTransferLimitReached is returned from Read when the max transfer limit is reached.

View Source 
var MaxCompletedTransfers = 100

MaxCompletedTransfers specifies maximum number of completed transfers in startedTransfers list

Functions

func SetBwLimit 

func SetBwLimit(bandwidth fs.SizeSuffix)

SetBwLimit sets the current bandwidth limit

func StartTokenBucket 

func StartTokenBucket()

StartTokenBucket starts the token bucket if necessary

func StartTokenTicker 

func StartTokenTicker()

StartTokenTicker creates a ticker to update the bandwidth limiter every minute.

func StatsGroupFromContext added in v1.6.1 

func StatsGroupFromContext(ctx context.Context) (string, bool)

StatsGroupFromContext returns group from the context if it's available. Returns false if group is empty.

func WithStatsGroup added in v1.6.1 

func WithStatsGroup(parent context.Context, group string) context.Context

WithStatsGroup returns copy of the parent context with assigned group.

Types

type Account 

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

Account limits and accounts for one transfer

func (*Account) AccountRead added in v1.6.1 

func (acc *Account) AccountRead(n int) (err error)

AccountRead account having read n bytes

func (*Account) Close 

func (acc *Account) Close() error

Close the object

func (*Account) Done added in v1.6.1 

func (acc *Account) Done()

Done with accounting - must be called to free accounting goroutine

func (*Account) GetAsyncReader 

func (acc *Account) GetAsyncReader() *asyncreader.AsyncReader

GetAsyncReader returns the current AsyncReader or nil if Account is unbuffered

func (*Account) GetReader 

func (acc *Account) GetReader() io.ReadCloser

GetReader returns the underlying io.ReadCloser under any Buffer

func (*Account) OldStream 

func (acc *Account) OldStream() io.Reader

OldStream returns the top io.Reader

func (*Account) Read 

func (acc *Account) Read(p []byte) (n int, err error)

Read bytes from the object - see io.Reader

func (*Account) RemoteStats 

func (acc *Account) RemoteStats() (out rc.Params)

RemoteStats produces stats for this file

func (*Account) ServerSideCopyEnd added in v1.6.1 

func (acc *Account) ServerSideCopyEnd(n int64)

ServerSideCopyEnd accounts for a read of n bytes in a sever side copy

func (*Account) ServerSideCopyStart added in v1.6.1 

func (acc *Account) ServerSideCopyStart()

ServerSideCopyStart should be called at the start of a server side copy

This pretends a transfer has started

func (*Account) SetStream 

func (acc *Account) SetStream(in io.Reader)

SetStream updates the top io.Reader

func (*Account) StopBuffering 

func (acc *Account) StopBuffering()

StopBuffering stops the async buffer doing any more buffering

func (*Account) String 

func (acc *Account) String() string

String produces stats for this file

func (*Account) UpdateReader 

func (acc *Account) UpdateReader(in io.ReadCloser)

UpdateReader updates the underlying io.ReadCloser stopping the async buffer (if any) and re-adding it

func (*Account) WithBuffer 

func (acc *Account) WithBuffer() *Account

WithBuffer - If the file is above a certain size it adds an Async reader

func (*Account) WrapStream 

func (acc *Account) WrapStream(in io.Reader) io.Reader

WrapStream wraps an io Reader so it will be accounted in the same way as account

type Accounter 

type Accounter interface {
	io.Reader
	OldStream() io.Reader
	SetStream(io.Reader)
	WrapStream(io.Reader) io.Reader
}

Accounter accounts a stream allowing the accounting to be removed and re-added

type StatsInfo 

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

StatsInfo accounts all transfers

func GlobalStats added in v1.6.1 

func GlobalStats() *StatsInfo

GlobalStats returns special stats used for global accounting.

func NewStats 

func NewStats() *StatsInfo

NewStats creates an initialised StatsInfo

func NewStatsGroup added in v1.6.1 

func NewStatsGroup(group string) *StatsInfo

NewStatsGroup creates new stats under named group.

func Stats 

func Stats(ctx context.Context) *StatsInfo

Stats gets stats by extracting group from context.

func StatsGroup added in v1.6.1 

func StatsGroup(group string) *StatsInfo

StatsGroup gets stats by group name.

func (*StatsInfo) AddTransfer added in v1.6.1 

func (s *StatsInfo) AddTransfer(transfer *Transfer)

AddTransfer adds reference to the started transfer.

func (*StatsInfo) Bytes 

func (s *StatsInfo) Bytes(bytes int64)

Bytes updates the stats for bytes bytes

func (*StatsInfo) Deletes 

func (s *StatsInfo) Deletes(deletes int64) int64

Deletes updates the stats for deletes

func (*StatsInfo) DoneChecking 

func (s *StatsInfo) DoneChecking(remote string)

DoneChecking removes a check from the stats

func (*StatsInfo) DoneTransferring 

func (s *StatsInfo) DoneTransferring(remote string, ok bool)

DoneTransferring removes a transfer from the stats

if ok is true then it increments the transfers count

func (*StatsInfo) Error 

func (s *StatsInfo) Error(err error) error

Error adds a single error into the stats, assigns lastError and eventually sets fatalError or retryError

func (*StatsInfo) Errored 

func (s *StatsInfo) Errored() bool

Errored returns whether there have been any errors

func (*StatsInfo) Errors 

func (s *StatsInfo) Errors(errors int64)

Errors updates the stats for errors

func (*StatsInfo) FatalError 

func (s *StatsInfo) FatalError()

FatalError sets the fatalError flag

func (*StatsInfo) GetBytes 

func (s *StatsInfo) GetBytes() int64

GetBytes returns the number of bytes transferred so far

func (*StatsInfo) GetChecks 

func (s *StatsInfo) GetChecks() int64

GetChecks returns the number of checks

func (*StatsInfo) GetErrors 

func (s *StatsInfo) GetErrors() int64

GetErrors reads the number of errors

func (*StatsInfo) GetLastError 

func (s *StatsInfo) GetLastError() error

GetLastError returns the lastError

func (*StatsInfo) GetTransfers 

func (s *StatsInfo) GetTransfers() int64

GetTransfers reads the number of transfers

func (*StatsInfo) HadFatalError 

func (s *StatsInfo) HadFatalError() bool

HadFatalError returns whether there has been at least one FatalError

func (*StatsInfo) HadRetryError 

func (s *StatsInfo) HadRetryError() bool

HadRetryError returns whether there has been at least one non-NoRetryError

func (*StatsInfo) Log 

func (s *StatsInfo) Log()

Log outputs the StatsInfo to the log

func (*StatsInfo) NewCheckingTransfer added in v1.6.1 

func (s *StatsInfo) NewCheckingTransfer(obj fs.Object) *Transfer

NewCheckingTransfer adds a checking transfer to the stats, from the object.

func (*StatsInfo) NewTransfer added in v1.6.1 

func (s *StatsInfo) NewTransfer(obj fs.Object) *Transfer

NewTransfer adds a transfer to the stats from the object.

func (*StatsInfo) NewTransferRemoteSize added in v1.6.1 

func (s *StatsInfo) NewTransferRemoteSize(remote string, size int64) *Transfer

NewTransferRemoteSize adds a transfer to the stats based on remote and size.

func (*StatsInfo) PruneTransfers added in v1.6.1 

func (s *StatsInfo) PruneTransfers()

PruneTransfers makes sure there aren't too many old transfers by removing single finished transfer.

func (*StatsInfo) RemoteStats 

func (s *StatsInfo) RemoteStats() (out rc.Params, err error)

RemoteStats returns stats for rc

func (*StatsInfo) RemoveTransfer added in v1.6.1 

func (s *StatsInfo) RemoveTransfer(transfer *Transfer)

RemoveTransfer removes a reference to the started transfer.

func (*StatsInfo) ResetCounters 

func (s *StatsInfo) ResetCounters()

ResetCounters sets the counters (bytes, checks, errors, transfers, deletes) to 0 and resets lastError, fatalError and retryError

func (*StatsInfo) ResetErrors 

func (s *StatsInfo) ResetErrors()

ResetErrors sets the errors count to 0 and resets lastError, fatalError and retryError

func (*StatsInfo) RetryAfter 

func (s *StatsInfo) RetryAfter() time.Time

RetryAfter returns the time to retry after if it is set. It will be Zero if it isn't set.

func (*StatsInfo) RetryError 

func (s *StatsInfo) RetryError()

RetryError sets the retryError flag

func (*StatsInfo) SetCheckQueue 

func (s *StatsInfo) SetCheckQueue(n int, size int64)

SetCheckQueue sets the number of queued checks

func (*StatsInfo) SetRenameQueue 

func (s *StatsInfo) SetRenameQueue(n int, size int64)

SetRenameQueue sets the number of queued transfers

func (*StatsInfo) SetTransferQueue 

func (s *StatsInfo) SetTransferQueue(n int, size int64)

SetTransferQueue sets the number of queued transfers

func (*StatsInfo) String 

func (s *StatsInfo) String() string

String convert the StatsInfo to a string for printing

func (*StatsInfo) Transferred added in v1.6.1 

func (s *StatsInfo) Transferred() []TransferSnapshot

Transferred returns list of all completed transfers including checked and failed ones.

type Transfer added in v1.6.1 

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

Transfer keeps track of initiated transfers and provides access to accounting functions. Transfer needs to be closed on completion.

func (*Transfer) Account added in v1.6.1 

func (tr *Transfer) Account(in io.ReadCloser) *Account

Account returns reader that knows how to keep track of transfer progress.

func (*Transfer) Done added in v1.6.1 

func (tr *Transfer) Done(err error)

Done ends the transfer. Must be called after transfer is finished to run proper cleanups.

func (*Transfer) IsDone added in v1.6.1 

func (tr *Transfer) IsDone() bool

IsDone returns true if transfer is completed.

func (*Transfer) Reset added in v1.6.1 

func (tr *Transfer) Reset()

Reset allows to switch the Account to another transfer method.

func (*Transfer) Snapshot added in v1.6.1 

func (tr *Transfer) Snapshot() TransferSnapshot

Snapshot produces stats for this account at point in time.

func (*Transfer) TimeRange added in v1.6.1 

func (tr *Transfer) TimeRange() (time.Time, time.Time)

TimeRange returns the time transfer started and ended at. If not completed it will return zero time for end time.

type TransferSnapshot added in v1.6.1 

type TransferSnapshot struct {
	Name        string    `json:"name"`
	Size        int64     `json:"size"`
	Bytes       int64     `json:"bytes"`
	Checked     bool      `json:"checked"`
	StartedAt   time.Time `json:"started_at"`
	CompletedAt time.Time `json:"completed_at,omitempty"`
	Error       error     `json:"-"`
	Group       string    `json:"group"`
}

TransferSnapshot represents state of an account at point in time.

func (TransferSnapshot) MarshalJSON added in v1.6.1 

func (as TransferSnapshot) MarshalJSON() ([]byte, error)

MarshalJSON implements json.Marshaler interface.

type WrapFn 

type WrapFn func(io.Reader) io.Reader

WrapFn wraps an io.Reader (for accounting purposes usually)

func UnWrap 

func UnWrap(in io.Reader) (unwrapped io.Reader, wrap WrapFn)

UnWrap unwraps a reader returning unwrapped and wrap, a function to wrap it back up again. If `in` is an Accounter then this function will take the accounting unwrapped and wrap will put it back on again the new Reader passed in.

This allows functions which wrap io.Readers to move the accounting to the end of the wrapped chain of readers. This is very important if buffering is being introduced and if the Reader might be wrapped again.

Source Files

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