utils

package
v1.8.0 Latest Latest
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 Go to latest Published: Sep 21, 2018 License: Apache-2.0 Imports: 16 Imported by: 0

Documentation

Overview

Copyright 2014 loolgame Author. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Copyright 2014 mqant Author. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Copyright 2014 loolgame Author. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Package queue provides a fast, ring-buffer queue based on the version suggested by Dariusz Górecki. Using this instead of other, simpler, queue implementations (slice+append or linked list) provides substantial memory and time benefits, and fewer GC pauses. The queue implemented here is as fast as it is for an additional reason: it is *not* thread-safe.

Copyright 2014 mqant Author. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Copyright 2014 mqant Author. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Copyright 2014 mqantserver Author. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Copyright 2014 mqant Author. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at 

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Index

Constants

View Source 
const CODE62 = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
View Source 
const CODE_LENTH = 62

Variables

View Source 
var EDOC = map[string]int64{"0": 0, "1": 1, "2": 2, "3": 3, "4": 4, "5": 5, "6": 6, "7": 7, "8": 8, "9": 9, "a": 10, "b": 11, "c": 12, "d": 13, "e": 14, "f": 15, "g": 16, "h": 17, "i": 18, "j": 19, "k": 20, "l": 21, "m": 22, "n": 23, "o": 24, "p": 25, "q": 26, "r": 27, "s": 28, "t": 29, "u": 30, "v": 31, "w": 32, "x": 33, "y": 34, "z": 35, "A": 36, "B": 37, "C": 38, "D": 39, "E": 40, "F": 41, "G": 42, "H": 43, "I": 44, "J": 45, "K": 46, "L": 47, "M": 48, "N": 49, "O": 50, "P": 51, "Q": 52, "R": 53, "S": 54, "T": 55, "U": 56, "V": 57, "W": 58, "X": 59, "Y": 60, "Z": 61}
View Source 
var SHARD_COUNT = 32

Functions

func Base62ToInt 

func Base62ToInt(str string) int64

*

  • 解码字符串为整数

func BoolToBytes 

func BoolToBytes(v bool) []byte

func BytesToBool 

func BytesToBool(buf []byte) bool

func BytesToFloat32 

func BytesToFloat32(bytes []byte) float32

func BytesToFloat64 

func BytesToFloat64(bytes []byte) float64

func BytesToInt32 

func BytesToInt32(buf []byte) int32

func BytesToInt64 

func BytesToInt64(buf []byte) int64

func BytesToMap 

func BytesToMap(bytes []byte) (map[string]interface{}, error)

func BytesToMapString 

func BytesToMapString(bytes []byte) (map[string]string, error)

func Float32ToBytes 

func Float32ToBytes(float float32) []byte

func Float64ToBytes 

func Float64ToBytes(float float64) []byte

func Int32ToBytes 

func Int32ToBytes(i int32) []byte

func Int64ToBytes 

func Int64ToBytes(i int64) []byte

func IntToBase62 

func IntToBase62(number int64) string

*

  • 编码 整数 为 base62 字符串

func MapToBytes 

func MapToBytes(jmap map[string]interface{}) ([]byte, error)

func MapToBytesString 

func MapToBytesString(jmap map[string]string) ([]byte, error)

func RandInt64 

func RandInt64(min, max int64) int64

func Struct2Map 

func Struct2Map(obj interface{}) map[string]interface{}

Types

type BeeMap 

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

BeeMap is a map with lock

func NewBeeMap 

func NewBeeMap() *BeeMap

NewBeeMap return new safemap

func (*BeeMap) Check 

func (m *BeeMap) Check(k interface{}) bool

Check Returns true if k is exist in the map.

func (*BeeMap) Delete 

func (m *BeeMap) Delete(k interface{})

Delete the given key and value.

func (*BeeMap) DeleteAll 

func (m *BeeMap) DeleteAll()

func (*BeeMap) Get 

func (m *BeeMap) Get(k interface{}) interface{}

Get from maps return the k's value

func (*BeeMap) Items 

func (m *BeeMap) Items() map[interface{}]interface{}

Items returns all items in safemap.

func (*BeeMap) Set 

func (m *BeeMap) Set(k interface{}, v interface{}) bool

Set Maps the given key and value. Returns false if the key is already in the map and changes nothing.

type ConcurrentMap 

type ConcurrentMap []*ConcurrentMapShared

A "thread" safe map of type string:Anything. To avoid lock bottlenecks this map is dived to several (SHARD_COUNT) map shards.

func New 

func New() ConcurrentMap

Creates a new concurrent map.

func (ConcurrentMap) Count 

func (m ConcurrentMap) Count() int

Returns the number of elements within the map.

func (ConcurrentMap) Get 

func (m ConcurrentMap) Get(key string) (interface{}, bool)

Retrieves an element from map under given key.

func (ConcurrentMap) GetShard 

func (m ConcurrentMap) GetShard(key string) *ConcurrentMapShared

Returns shard under given key

func (ConcurrentMap) Has 

func (m ConcurrentMap) Has(key string) bool

Looks up an item under specified key

func (ConcurrentMap) IsEmpty 

func (m ConcurrentMap) IsEmpty() bool

Checks if map is empty.

func (ConcurrentMap) Items 

func (m ConcurrentMap) Items() map[string]interface{}

Returns all items as map[string]interface{}

func (ConcurrentMap) Iter deprecated 

func (m ConcurrentMap) Iter() <-chan Tuple

Returns an iterator which could be used in a for range loop.

Deprecated: using IterBuffered() will get a better performence

func (ConcurrentMap) IterBuffered 

func (m ConcurrentMap) IterBuffered() <-chan Tuple

Returns a buffered iterator which could be used in a for range loop.

func (ConcurrentMap) IterCb 

func (m ConcurrentMap) IterCb(fn IterCb)

Callback based iterator, cheapest way to read all elements in a map.

func (ConcurrentMap) Keys 

func (m ConcurrentMap) Keys() []string

Return all keys as []string

func (ConcurrentMap) MSet 

func (m ConcurrentMap) MSet(data map[string]interface{})

func (ConcurrentMap) MarshalJSON 

func (m ConcurrentMap) MarshalJSON() ([]byte, error)

Reviles ConcurrentMap "private" variables to json marshal.

func (ConcurrentMap) Pop 

func (m ConcurrentMap) Pop(key string) (v interface{}, exists bool)

Removes an element from the map and returns it

func (ConcurrentMap) Remove 

func (m ConcurrentMap) Remove(key string)

Removes an element from the map.

func (ConcurrentMap) RemoveCb 

func (m ConcurrentMap) RemoveCb(key string, cb RemoveCb) bool

RemoveCb locks the shard containing the key, retrieves its current value and calls the callback with those params If callback returns true and element exists, it will remove it from the map Returns the value returned by the callback (even if element was not present in the map)

func (ConcurrentMap) Set 

func (m ConcurrentMap) Set(key string, value interface{})

Sets the given value under the specified key.

func (ConcurrentMap) SetIfAbsent 

func (m ConcurrentMap) SetIfAbsent(key string, value interface{}) bool

Sets the given value under the specified key if no value was associated with it.

func (ConcurrentMap) Upsert 

func (m ConcurrentMap) Upsert(key string, value interface{}, cb UpsertCb) (res interface{})

Insert or Update - updates existing element or inserts a new one using UpsertCb

type ConcurrentMapShared 

type ConcurrentMapShared struct {
	sync.RWMutex // Read Write mutex, guards access to internal map.
	// contains filtered or unexported fields
}

A "thread" safe string to anything map.

type ID added in v1.8.0 

type ID uint64

An ID is a unique, uniformly distributed 64-bit ID.

func GenerateID added in v1.8.0 

func GenerateID() ID

generateID returns a randomly-generated 64-bit ID. This function is thread-safe. IDs are produced by consuming an AES-CTR-128 keystream in 64-bit chunks. The AES key is randomly generated on initialization, as is the counter's initial state. On machines with AES-NI support, ID generation takes ~30ns and generates no garbage.

func ParseID added in v1.8.0 

func ParseID(s string) (ID, error)

ParseID parses the given string as a hexadecimal string.

func (ID) MarshalJSON added in v1.8.0 

func (id ID) MarshalJSON() ([]byte, error)

MarshalJSON encodes the ID as a hex string.

func (ID) String added in v1.8.0 

func (id ID) String() string

String returns the ID as a hex string.

func (*ID) UnmarshalJSON added in v1.8.0 

func (id *ID) UnmarshalJSON(data []byte) error

UnmarshalJSON decodes the given data as either a hexadecimal string or JSON integer.

type IterCb 

type IterCb func(key string, v interface{})

Iterator callback,called for every key,value found in maps. RLock is held for all calls for a given shard therefore callback sess consistent view of a shard, but not across the shards

type Queue added in v1.8.0 

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

Queue represents a single instance of the queue data structure.

func NewQueue added in v1.8.0 

func NewQueue() *Queue

New constructs and returns a new Queue.

func (*Queue) Add added in v1.8.0 

func (q *Queue) Add(elem interface{})

Add puts an element on the end of the queue.

func (*Queue) Get added in v1.8.0 

func (q *Queue) Get(i int) interface{}

Get returns the element at index i in the queue. If the index is invalid, the call will panic. This method accepts both positive and negative index values. Index 0 refers to the first element, and index -1 refers to the last.

func (*Queue) Length added in v1.8.0 

func (q *Queue) Length() int

Length returns the number of elements currently stored in the queue.

func (*Queue) Peek added in v1.8.0 

func (q *Queue) Peek() interface{}

Peek returns the element at the head of the queue. This call panics if the queue is empty.

func (*Queue) Remove added in v1.8.0 

func (q *Queue) Remove() interface{}

Remove removes and returns the element from the front of the queue. If the queue is empty, the call will panic.

type RedisFactory 

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

func GetRedisFactory 

func GetRedisFactory() *RedisFactory

func (RedisFactory) CloseAllPool 

func (this RedisFactory) CloseAllPool()

func (RedisFactory) GetPool 

func (this RedisFactory) GetPool(url string) *redis.Pool

type RemoveCb 

type RemoveCb func(key string, v interface{}, exists bool) bool

RemoveCb is a callback executed in a map.RemoveCb() call, while Lock is held If returns true, the element will be removed from the map

type SyncQueue added in v1.8.0 

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

Synchronous FIFO queue

func NewSyncQueue added in v1.8.0 

func NewSyncQueue() *SyncQueue

Create a new SyncQueue

func (*SyncQueue) Close added in v1.8.0 

func (q *SyncQueue) Close()

Close SyncQueue

After close, Pop will return nil without block, and TryPop will return v=nil, ok=True

func (*SyncQueue) IsClose added in v1.8.0 

func (q *SyncQueue) IsClose() (v bool)

func (*SyncQueue) Len added in v1.8.0 

func (q *SyncQueue) Len() (l int)

Get the length of SyncQueue

func (*SyncQueue) Pop added in v1.8.0 

func (q *SyncQueue) Pop() (v interface{})

Pop an item from SyncQueue, will block if SyncQueue is empty

func (*SyncQueue) Push added in v1.8.0 

func (q *SyncQueue) Push(v interface{})

Push an item to SyncQueue. Always returns immediately without blocking

func (*SyncQueue) TryPop added in v1.8.0 

func (q *SyncQueue) TryPop() (v interface{}, ok bool)

Try to pop an item from SyncQueue, will return immediately with bool=false if SyncQueue is empty

type Tuple 

type Tuple struct {
	Key string
	Val interface{}
}

Used by the Iter & IterBuffered functions to wrap two variables together over a channel,

type UpsertCb 

type UpsertCb func(exist bool, valueInMap interface{}, newValue interface{}) interface{}

Callback to return new element to be inserted into the map It is called while lock is held, therefore it MUST NOT try to access other keys in same map, as it can lead to deadlock since Go sync.RWLock is not reentrant

Source Files

View all Source files

Directories

Path Synopsis
fatih
structs
Package structs contains various utilities functions to work with structs.
 Package structs contains various utilities functions to work with structs.
codes
x
crypto/acme
Package acme provides an implementation of the Automatic Certificate Management Environment (ACME) spec.
 Package acme provides an implementation of the Automatic Certificate Management Environment (ACME) spec.
crypto/acme/autocert
Package autocert provides automatic access to certificates from Let's Encrypt and any other ACME-based CA.
 Package autocert provides automatic access to certificates from Let's Encrypt and any other ACME-based CA.
crypto/bcrypt
Package bcrypt implements Provos and Mazières's bcrypt adaptive hashing algorithm.
 Package bcrypt implements Provos and Mazières's bcrypt adaptive hashing algorithm.
crypto/blake2b
Package blake2b implements the BLAKE2b hash algorithm as defined in RFC 7693.
 Package blake2b implements the BLAKE2b hash algorithm as defined in RFC 7693.
crypto/blake2s
Package blake2s implements the BLAKE2s hash algorithm as defined in RFC 7693.
 Package blake2s implements the BLAKE2s hash algorithm as defined in RFC 7693.
crypto/blowfish
Package blowfish implements Bruce Schneier's Blowfish encryption algorithm.
 Package blowfish implements Bruce Schneier's Blowfish encryption algorithm.
crypto/bn256
Package bn256 implements a particular bilinear group at the 128-bit security level.
 Package bn256 implements a particular bilinear group at the 128-bit security level.
crypto/cast5
Package cast5 implements CAST5, as defined in RFC 2144.
 Package cast5 implements CAST5, as defined in RFC 2144.
crypto/chacha20poly1305
Package chacha20poly1305 implements the ChaCha20-Poly1305 AEAD as specified in RFC 7539.
 Package chacha20poly1305 implements the ChaCha20-Poly1305 AEAD as specified in RFC 7539.
crypto/chacha20poly1305/internal/chacha20
Package ChaCha20 implements the core ChaCha20 function as specified in https://tools.ietf.org/html/rfc7539#section-2.3.
 Package ChaCha20 implements the core ChaCha20 function as specified in https://tools.ietf.org/html/rfc7539#section-2.3.
crypto/curve25519
Package curve25519 provides an implementation of scalar multiplication on the elliptic curve known as curve25519.
 Package curve25519 provides an implementation of scalar multiplication on the elliptic curve known as curve25519.
crypto/ed25519
Package ed25519 implements the Ed25519 signature algorithm.
 Package ed25519 implements the Ed25519 signature algorithm.
crypto/ed25519/internal/edwards25519
crypto/hkdf
Package hkdf implements the HMAC-based Extract-and-Expand Key Derivation Function (HKDF) as defined in RFC 5869.
 Package hkdf implements the HMAC-based Extract-and-Expand Key Derivation Function (HKDF) as defined in RFC 5869.
crypto/md4
Package md4 implements the MD4 hash algorithm as defined in RFC 1320.
 Package md4 implements the MD4 hash algorithm as defined in RFC 1320.
crypto/nacl/box
Package box authenticates and encrypts messages using public-key cryptography.
 Package box authenticates and encrypts messages using public-key cryptography.
crypto/nacl/secretbox
Package secretbox encrypts and authenticates small messages.
 Package secretbox encrypts and authenticates small messages.
crypto/ocsp
Package ocsp parses OCSP responses as specified in RFC 2560.
 Package ocsp parses OCSP responses as specified in RFC 2560.
crypto/openpgp
Package openpgp implements high level operations on OpenPGP messages.
 Package openpgp implements high level operations on OpenPGP messages.
crypto/openpgp/armor
Package armor implements OpenPGP ASCII Armor, see RFC 4880.
 Package armor implements OpenPGP ASCII Armor, see RFC 4880.
crypto/openpgp/clearsign
Package clearsign generates and processes OpenPGP, clear-signed data.
 Package clearsign generates and processes OpenPGP, clear-signed data.
crypto/openpgp/elgamal
Package elgamal implements ElGamal encryption, suitable for OpenPGP, as specified in "A Public-Key Cryptosystem and a Signature Scheme Based on Discrete Logarithms," IEEE Transactions on Information Theory, v.
 Package elgamal implements ElGamal encryption, suitable for OpenPGP, as specified in "A Public-Key Cryptosystem and a Signature Scheme Based on Discrete Logarithms," IEEE Transactions on Information Theory, v.
crypto/openpgp/errors
Package errors contains common error types for the OpenPGP packages.
 Package errors contains common error types for the OpenPGP packages.
crypto/openpgp/packet
Package packet implements parsing and serialization of OpenPGP packets, as specified in RFC 4880.
 Package packet implements parsing and serialization of OpenPGP packets, as specified in RFC 4880.
crypto/openpgp/s2k
Package s2k implements the various OpenPGP string-to-key transforms as specified in RFC 4800 section 3.7.1.
 Package s2k implements the various OpenPGP string-to-key transforms as specified in RFC 4800 section 3.7.1.
crypto/otr
Package otr implements the Off The Record protocol as specified in http://www.cypherpunks.ca/otr/Protocol-v2-3.1.0.html
 Package otr implements the Off The Record protocol as specified in http://www.cypherpunks.ca/otr/Protocol-v2-3.1.0.html
crypto/pbkdf2
Package pbkdf2 implements the key derivation function PBKDF2 as defined in RFC 2898 / PKCS #5 v2.0.
 Package pbkdf2 implements the key derivation function PBKDF2 as defined in RFC 2898 / PKCS #5 v2.0.
crypto/pkcs12
Package pkcs12 implements some of PKCS#12.
 Package pkcs12 implements some of PKCS#12.
crypto/pkcs12/internal/rc2
Package rc2 implements the RC2 cipher https://www.ietf.org/rfc/rfc2268.txt http://people.csail.mit.edu/rivest/pubs/KRRR98.pdf This code is licensed under the MIT license.
 Package rc2 implements the RC2 cipher https://www.ietf.org/rfc/rfc2268.txt http://people.csail.mit.edu/rivest/pubs/KRRR98.pdf This code is licensed under the MIT license.
crypto/poly1305
Package poly1305 implements Poly1305 one-time message authentication code as specified in http://cr.yp.to/mac/poly1305-20050329.pdf.
 Package poly1305 implements Poly1305 one-time message authentication code as specified in http://cr.yp.to/mac/poly1305-20050329.pdf.
crypto/ripemd160
Package ripemd160 implements the RIPEMD-160 hash algorithm.
 Package ripemd160 implements the RIPEMD-160 hash algorithm.
crypto/salsa20
Package salsa20 implements the Salsa20 stream cipher as specified in http://cr.yp.to/snuffle/spec.pdf.
 Package salsa20 implements the Salsa20 stream cipher as specified in http://cr.yp.to/snuffle/spec.pdf.
crypto/salsa20/salsa
Package salsa provides low-level access to functions in the Salsa family.
 Package salsa provides low-level access to functions in the Salsa family.
crypto/scrypt
Package scrypt implements the scrypt key derivation function as defined in Colin Percival's paper "Stronger Key Derivation via Sequential Memory-Hard Functions" (http://www.tarsnap.com/scrypt/scrypt.pdf).
 Package scrypt implements the scrypt key derivation function as defined in Colin Percival's paper "Stronger Key Derivation via Sequential Memory-Hard Functions" (http://www.tarsnap.com/scrypt/scrypt.pdf).
crypto/sha3
Package sha3 implements the SHA-3 fixed-output-length hash functions and the SHAKE variable-output-length hash functions defined by FIPS-202.
 Package sha3 implements the SHA-3 fixed-output-length hash functions and the SHAKE variable-output-length hash functions defined by FIPS-202.
crypto/ssh
Package ssh implements an SSH client and server.
 Package ssh implements an SSH client and server.
crypto/ssh/agent
Package agent implements the ssh-agent protocol, and provides both a client and a server.
 Package agent implements the ssh-agent protocol, and provides both a client and a server.
crypto/ssh/terminal
Package terminal provides support functions for dealing with terminals, as commonly found on UNIX systems.
 Package terminal provides support functions for dealing with terminals, as commonly found on UNIX systems.
crypto/ssh/test
This package contains integration tests for the
 This package contains integration tests for the
crypto/tea
crypto/twofish
Package twofish implements Bruce Schneier's Twofish encryption algorithm.
 Package twofish implements Bruce Schneier's Twofish encryption algorithm.
crypto/xtea
Package xtea implements XTEA encryption, as defined in Needham and Wheeler's 1997 technical report, "Tea extensions."
 Package xtea implements XTEA encryption, as defined in Needham and Wheeler's 1997 technical report, "Tea extensions."
crypto/xts
Package xts implements the XTS cipher mode as specified in IEEE P1619/D16.
 Package xts implements the XTS cipher mode as specified in IEEE P1619/D16.

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