zutil

Documentation

Overview

Package zutil daily development helper functions

Index

• Variables
• func CheckErr(err error, exit ...bool)
• func GOROOT() string
• func GetAllMethod(s interface{}, fn func(numMethod int, m reflect.Method) error) error
• func GetBuff(ss ...int) *bytes.Buffer
• func GetGid() uint64
• func GetOs() string
• func GetParentProcessName() (string, error)
• func Getenv(name string, def ...string) string
• func IfVal(condition bool, trueVal, falseVal interface{}) interface{}
• func IsDoubleClickStartUp() bool
• func IsLinux() bool
• func IsMac() bool
• func IsWin() bool
• func MaxRlimit() (int, error)
• func Named(name string, arg interface{}) interface{}
• func Once(fn func() interface{}) func() interface{}
• func PutBuff(buffer *bytes.Buffer)
• func ReflectForNumField(v reflect.Value, ...) error
• func ReflectStructField(v reflect.Type, ...) error
• func RunAllMethod(st interface{}, args ...interface{}) (err error)
• func RunAssignMethod(st interface{}, filter func(methodName string) bool, args ...interface{}) (err error)
• func SetValue(vTypeOf reflect.Kind, vValueOf reflect.Value, value interface{}) (err error)
• func Try(fn func(), catch func(e interface{}), finally ...func())
• func TryCatch(fn func() error) (err error)
• func UnescapeHTML(s string) string
• func WithCompileHandler(fn ArgsCompileHandler) func(args *Args)
• func WithOnlyNamed() func(args *Args)
• func WithRunContext(handler func()) (time.Duration, uint64)
• type Args
  • func NewArgs(opt ...ArgsOpt) *Args
  • func (args *Args) Compile(format string, initialValue ...interface{}) (query string, values []interface{})
  • func (args *Args) CompileArg(buf *bytes.Buffer, values []interface{}, arg interface{}) []interface{}
  • func (args *Args) CompileString(format string, initialValue ...interface{}) string
  • func (args *Args) Map(arg interface{}) string
• type ArgsCompileHandler
• type ArgsOpt
• type Bool
  • func NewBool(b bool) *Bool
  • func (b *Bool) CAS(old, new bool) bool
  • func (b *Bool) Load() bool
  • func (b *Bool) Store(val bool) bool
  • func (b *Bool) Toggle() (old bool)
• type Int32
  • func NewInt32(i int32) *Int32
  • func (i32 *Int32) Add(i int32) int32
  • func (i32 *Int32) CAS(old, new int32) bool
  • func (i32 *Int32) Load() int32
  • func (i32 *Int32) Store(i int32)
  • func (i32 *Int32) String() string
  • func (i32 *Int32) Sub(i int32) int32
  • func (i32 *Int32) Swap(i int32) int32
• type Int64
  • func NewInt64(i int64) *Int64
  • func (i64 *Int64) Add(i int64) int64
  • func (i64 *Int64) CAS(old, new int64) bool
  • func (i64 *Int64) Load() int64
  • func (i64 *Int64) Store(i int64)
  • func (i64 *Int64) String() string
  • func (i64 *Int64) Sub(i int64) int64
  • func (i64 *Int64) Swap(i int64) int64
• type Nocmp
• type Stack
  • func Callers(skip ...int) Stack
  • func (s Stack) Format(f func(fn *runtime.Func, file string, line int) bool)

Variables

var (
	BuffSize = bufTypes[3]
)

Functions

func CheckErr

func CheckErr(err error, exit ...bool)

Deprecated: please use zerror.Panic CheckErr Check Err

func GOROOT

func GOROOT() string

func GetAllMethod

func GetAllMethod(s interface{}, fn func(numMethod int, m reflect.Method) error) error

GetAllMethod get all methods of struct

func GetBuff

func GetBuff(ss ...int) *bytes.Buffer

func GetGid

func GetGid() uint64

GetGid Get coroutine id

func GetOs

func GetOs() string

func GetParentProcessName

func GetParentProcessName() (string, error)

func Getenv

func Getenv(name string, def ...string) string

Getenv get ENV value by key name

func IfVal

func IfVal(condition bool, trueVal, falseVal interface{}) interface{}

IfVal Simulate ternary calculations, pay attention to handling no variables or indexing problems

func IsDoubleClickStartUp

func IsDoubleClickStartUp() bool

func IsLinux

func IsLinux() bool

IsLinux system

func IsMac

func IsMac() bool

IsMac system

func IsWin

func IsWin() bool

IsWin system. linux windows darwin

func MaxRlimit

func MaxRlimit() (int, error)

MaxRlimit tries to set the resource limit RLIMIT_NOFILE to the max (hard limit)

func Named

func Named(name string, arg interface{}) interface{}

Named creates a named argument

func Once

func Once(fn func() interface{}) func() interface{}

Once initialize the singleton

func PutBuff

func PutBuff(buffer *bytes.Buffer)

func ReflectForNumField

func ReflectForNumField(v reflect.Value, fn func(fieldName, fieldTag string,
	kind reflect.Kind, field reflect.Value) error, tag ...string) error

func ReflectStructField

func ReflectStructField(v reflect.Type, fn func(
	numField int, fieldTag string, field reflect.StructField) error, tag ...string) error

func RunAllMethod

func RunAllMethod(st interface{}, args ...interface{}) (err error)

RunAllMethod run all methods of struct

func RunAssignMethod

func RunAssignMethod(st interface{}, filter func(methodName string) bool, args ...interface{}) (err error)

RunAssignMethod run assign methods of struct

func SetValue

func SetValue(vTypeOf reflect.Kind, vValueOf reflect.Value, value interface{}) (err error)

func Try

func Try(fn func(), catch func(e interface{}), finally ...func())

Deprecated: please use zerror.TryCatch Try exception capture

func TryCatch

func TryCatch(fn func() error) (err error)

TryCatch exception capture

func UnescapeHTML

func UnescapeHTML(s string) string

func WithCompileHandler

func WithCompileHandler(fn ArgsCompileHandler) func(args *Args)

func WithOnlyNamed

func WithOnlyNamed() func(args *Args)

func WithRunContext

func WithRunContext(handler func()) (time.Duration, uint64)

WithRunContext function execution time and memory

Types

type Args

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

Args stores arguments associated

func NewArgs

func NewArgs(opt ...ArgsOpt) *Args

NewArgs returns a new Args

func (*Args) Compile

func (args *Args) Compile(format string, initialValue ...interface{}) (query string, values []interface{})

Compile compiles builder's format to standard sql and returns associated args

func (*Args) CompileArg

func (args *Args) CompileArg(buf *bytes.Buffer, values []interface{}, arg interface{}) []interface{}

func (*Args) CompileString

func (args *Args) CompileString(format string, initialValue ...interface{}) string

CompileString returns a string representation of Args

func (*Args) Map

func (args *Args) Map(arg interface{}) string

Map adds an arg to Args and returns a placeholder

type ArgsCompileHandler

type ArgsCompileHandler func(buf *bytes.Buffer, values []interface{}, arg interface{}) ([]interface{}, bool)

type ArgsOpt

type ArgsOpt func(*Args)

type Bool

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

func NewBool

func NewBool(b bool) *Bool

func (*Bool) CAS

func (b *Bool) CAS(old, new bool) bool

func (*Bool) Load

func (b *Bool) Load() bool

func (*Bool) Store

func (b *Bool) Store(val bool) bool

func (*Bool) Toggle

func (b *Bool) Toggle() (old bool)

type Int32

type Int32 struct {
	// contains filtered or unexported fields
}

func NewInt32

func NewInt32(i int32) *Int32

func (*Int32) Add

func (i32 *Int32) Add(i int32) int32

func (*Int32) CAS

func (i32 *Int32) CAS(old, new int32) bool

func (*Int32) Load

func (i32 *Int32) Load() int32

func (*Int32) Store

func (i32 *Int32) Store(i int32)

func (*Int32) String

func (i32 *Int32) String() string

func (*Int32) Sub

func (i32 *Int32) Sub(i int32) int32

func (*Int32) Swap

func (i32 *Int32) Swap(i int32) int32

type Int64

type Int64 struct {
	// contains filtered or unexported fields
}

func NewInt64

func NewInt64(i int64) *Int64

func (*Int64) Add

func (i64 *Int64) Add(i int64) int64

func (*Int64) CAS

func (i64 *Int64) CAS(old, new int64) bool

func (*Int64) Load

func (i64 *Int64) Load() int64

func (*Int64) Store

func (i64 *Int64) Store(i int64)

func (*Int64) String

func (i64 *Int64) String() string

func (*Int64) Sub

func (i64 *Int64) Sub(i int64) int64

func (*Int64) Swap

func (i64 *Int64) Swap(i int64) int64

type Nocmp

type Nocmp [0]func()

Nocmp is an uncomparable struct

type Stack

type Stack []uintptr

Stack uintptr array

func Callers

func Callers(skip ...int) Stack

func (Stack) Format

func (s Stack) Format(f func(fn *runtime.Func, file string, line int) bool)