README
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Tapr
Documentation: tapr.space
About
Tapr is an experimental high performance tape management system.
Status
Tapr is not ready for production use.
Documentation
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Overview ¶
Package tapr includes the main Tapr types and interfaces.
This package MUST NOT import any other Tapr packages.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Client ¶
type Client interface {
// Pull arranges for the client to pull data from Tapr to an
// io.Writer.
Pull(name PathName, w io.Writer) error
// PullFile is the generalized Pull call. It will pull the named file from
// the server, starting at offset and writing to w.
PullFile(name PathName, w io.Writer, offset int64) error
// Push arranges for the client to push data to Tapr from an
// io.Reader.
Push(name PathName, r io.Reader) error
// PushFile is the generalized Push call. It will push the named file to the
// server at offset. If append is true, the offset will be ignored.
PushFile(name PathName, r io.Reader, append bool) error
// Append appends data from an io.Reader to the named file.
Append(name PathName, r io.Reader) error
// Stat retrieves basic file info.
Stat(name PathName) (*FileInfo, error)
}
Client is the high-level user API towards Tapr. It is very simplified. The client is oblivious to where data is stored, but may give hints.
type Config ¶
type Config interface {
// Target returns the target of i/o operations.
Target() string
// Value returns the value for the given configuration key.
Value(key string) string
}
Config contains client information
type File ¶
type File interface {
// Close closes an open file.
Close() error
// Name returns the full path name of the File.
Name() string
// Read, ReadAt, Write, WriteAt and Seek implement
// the standard Go interfaces io.Reader, etc.
Read(b []byte) (n int, err error)
Write(b []byte) (n int, err error)
// Seek sets the offset for the next Read or Write to offset,
// interpreted according to whence: io.SeekStart means relative
// to the start of the file, io.SeekCurrent means relative to
// the current offset, and io.SeekEnd means relative to the end.
// Seek returns the new offset relative to the start of the file
// and an error, if any.
//
// Seeking to an offset before the start of the file is an error.
// Seeking to any positive offset is legal, but the behavior of
// subsequent I/O operations on the underlying object is
// implementation-dependent.
Seek(offset int64, whence int) (int64, error)
}
The File interface has semantics and an API that parallels a subset of Go's os.File.
type NetAddr ¶
type NetAddr string
A NetAddr is the network address of service. It is interpreted by Dialer's Dial method to connect to the service.
Source Files
Directories
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| Path | Synopsis |
|---|---|
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Package bitmask implements simple functions for handling bitmasks/flags.
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Package bitmask implements simple functions for handling bitmasks/flags. |
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Package client implements a tapr.Client.
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Package client implements a tapr.Client. |
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cmd
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Package errors defines the error handling used by corpus.
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Package errors defines the error handling used by corpus. |
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Package flags defines command-line flags to make them consistent between binaries.
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Package flags defines command-line flags to make them consistent between binaries. |
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Package format defines the interfaces that implement storage formats.
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Package format defines the interfaces that implement storage formats. |
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ltfs
Package ltfs provides simple functions to work with LTFS volumes through the reference LTFS implementation tools.
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Package ltfs provides simple functions to work with LTFS volumes through the reference LTFS implementation tools. |
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Package log exports logging primitives that log to stderr.
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Package log exports logging primitives that log to stderr. |
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Package metric implements routines for generating and saving metrics associated with servers and clients.
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Package metric implements routines for generating and saving metrics associated with servers and clients. |
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Package proto is a generated protocol buffer package.
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Package proto is a generated protocol buffer package. |
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Package shutdown provides a mechanism for registering handlers to be called on process shutdown.
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Package shutdown provides a mechanism for registering handlers to be called on process shutdown. |
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fsdir
Package fsdir implements a storage backend that writes to some mounted file system.
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Package fsdir implements a storage backend that writes to some mounted file system. |
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Package store defines the interfaces that implements the basic 'store' abstraction.
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Package store defines the interfaces that implements the basic 'store' abstraction. |
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fs/service
Package service implements a simple store.Store using an existing file system.
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Package service implements a simple store.Store using an existing file system. |
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tape/changer/fake
Package fake provides a fake tape.Changer.
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Package fake provides a fake tape.Changer. |
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tape/changer/mtx
Package mtx provides a changer.Changer that uses the mtx command to control a SCSI media changer.
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Package mtx provides a changer.Changer that uses the mtx command to control a SCSI media changer. |
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tape/inv/postgres
Package postgres implements a PostgreSQL backed inv.Inventory.
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Package postgres implements a PostgreSQL backed inv.Inventory. |
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tape/proto
Package proto is a generated protocol buffer package.
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Package proto is a generated protocol buffer package. |
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