common

Documentation

Index

• Constants
• Variables
• func BytePtrToString(p *uint8) string
• func ByteToString(orig []byte) string
• func CombinedOutputTimeout(c *exec.Cmd, timeout time.Duration) ([]byte, error)
• func CreateQuery() (syscall.Handle, error)
• func GetEnv(key string, dfault string, combineWith ...string) string
• func HostEtc(combineWith ...string) string
• func HostProc(combineWith ...string) string
• func HostSys(combineWith ...string) string
• func IntContains(target []int, src int) bool
• func IntToString(orig []int8) string
• func ListDirectory(path string) ([]string, error)
• func PathExists(filename string) bool
• func PathExistsWithContents(filename string) bool
• func Read(r io.Reader, order ByteOrder, data interface{}) error
• func ReadInts(filename string) ([]int64, error)
• func ReadLines(filename string) ([]string, error)
• func ReadLinesOffsetN(filename string, offset uint, n int) ([]string, error)
• func Size(v interface{}) int
• func StringsContains(target []string, src string) bool
• func StringsHas(target []string, src string) bool
• func UintToString(orig []uint8) string
• func WaitTimeout(c *exec.Cmd, timeout time.Duration) error
• func Write(w io.Writer, order ByteOrder, data interface{}) error
• type ByteOrder
• type CounterInfo
  • func CreateCounter(query syscall.Handle, pname, cname string) (*CounterInfo, error)
• type FILETIME
• type FakeInvoke
  • func (i FakeInvoke) Command(name string, arg ...string) ([]byte, error)
• type Invoke
  • func (i Invoke) Command(name string, arg ...string) ([]byte, error)
• type Invoker
• type PDH_FMT_COUNTERVALUE_DOUBLE
• type PDH_FMT_COUNTERVALUE_LARGE
• type PDH_FMT_COUNTERVALUE_LONG
• type StringSet
  • func NewStringSet(initItems ...string) StringSet
  • func (s StringSet) Add(item string)
  • func (s StringSet) GetAll() []string

Constants

const (
	ERROR_SUCCESS        = 0
	ERROR_FILE_NOT_FOUND = 2
	DRIVE_REMOVABLE      = 2
	DRIVE_FIXED          = 3
	HKEY_LOCAL_MACHINE   = 0x80000002
	RRF_RT_REG_SZ        = 0x00000002
	RRF_RT_REG_DWORD     = 0x00000010
	PDH_FMT_LONG         = 0x00000100
	PDH_FMT_DOUBLE       = 0x00000200
	PDH_FMT_LARGE        = 0x00000400
	PDH_INVALID_DATA     = 0xc0000bc6
	PDH_INVALID_HANDLE   = 0xC0000bbc
	PDH_NO_DATA          = 0x800007d5
)

windows system const

Variables

var (
	Timeout    = 3 * time.Second
	ErrTimeout = errors.New("Command timed out.")
)

var (
	Modkernel32 = syscall.NewLazyDLL("kernel32.dll")
	ModNt       = syscall.NewLazyDLL("ntdll.dll")
	ModPdh      = syscall.NewLazyDLL("pdh.dll")

	ProcGetSystemTimes           = Modkernel32.NewProc("GetSystemTimes")
	ProcNtQuerySystemInformation = ModNt.NewProc("NtQuerySystemInformation")
	PdhOpenQuery                 = ModPdh.NewProc("PdhOpenQuery")
	PdhAddCounter                = ModPdh.NewProc("PdhAddCounterW")
	PdhCollectQueryData          = ModPdh.NewProc("PdhCollectQueryData")
	PdhGetFormattedCounterValue  = ModPdh.NewProc("PdhGetFormattedCounterValue")
	PdhCloseQuery                = ModPdh.NewProc("PdhCloseQuery")
)

var BigEndian bigEndian

BigEndian is the big-endian implementation of ByteOrder.

var ErrNotImplementedError = errors.New("not implemented yet")

var LittleEndian littleEndian

LittleEndian is the little-endian implementation of ByteOrder.

Functions

func BytePtrToString

func BytePtrToString(p *uint8) string

borrowed from net/interface_windows.go

func ByteToString

func ByteToString(orig []byte) string

func CombinedOutputTimeout

func CombinedOutputTimeout(c *exec.Cmd, timeout time.Duration) ([]byte, error)

CombinedOutputTimeout runs the given command with the given timeout and returns the combined output of stdout and stderr. If the command times out, it attempts to kill the process. copied from https://github.com/influxdata/telegraf

func CreateQuery

func CreateQuery() (syscall.Handle, error)

CreateQuery XXX copied from https://github.com/mackerelio/mackerel-agent/

func GetEnv

func GetEnv(key string, dfault string, combineWith ...string) string

GetEnv retrieves the environment variable key. If it does not exist it returns the default.

func HostEtc

func HostEtc(combineWith ...string) string

func HostProc

func HostProc(combineWith ...string) string

func HostSys

func HostSys(combineWith ...string) string

func IntContains

func IntContains(target []int, src int) bool

IntContains checks the src in any int of the target int slice.

func IntToString

func IntToString(orig []int8) string

func ListDirectory

func ListDirectory(path string) ([]string, error)

Reads the contents of a directory

func PathExists

func PathExists(filename string) bool

func PathExistsWithContents

func PathExistsWithContents(filename string) bool

func Read

func Read(r io.Reader, order ByteOrder, data interface{}) error

Read reads structured binary data from r into data. Data must be a pointer to a fixed-size value or a slice of fixed-size values. Bytes read from r are decoded using the specified byte order and written to successive fields of the data. When reading into structs, the field data for fields with blank (_) field names is skipped; i.e., blank field names may be used for padding. When reading into a struct, all non-blank fields must be exported.

func ReadInts

func ReadInts(filename string) ([]int64, error)

ReadInts reads contents from single line file and returns them as []int32.

func ReadLines

func ReadLines(filename string) ([]string, error)

ReadLines reads contents from a file and splits them by new lines. A convenience wrapper to ReadLinesOffsetN(filename, 0, -1).

func ReadLinesOffsetN

func ReadLinesOffsetN(filename string, offset uint, n int) ([]string, error)

ReadLines reads contents from file and splits them by new line. The offset tells at which line number to start. The count determines the number of lines to read (starting from offset):

n >= 0: at most n lines
n < 0: whole file

func Size

func Size(v interface{}) int

Size returns how many bytes Write would generate to encode the value v, which must be a fixed-size value or a slice of fixed-size values, or a pointer to such data. If v is neither of these, Size returns -1.

func StringsContains

func StringsContains(target []string, src string) bool

StringsContains checks the src in any string of the target string slice

func StringsHas

func StringsHas(target []string, src string) bool

StringsHas checks the target string slice contains src or not

func UintToString

func UintToString(orig []uint8) string

func WaitTimeout

func WaitTimeout(c *exec.Cmd, timeout time.Duration) error

WaitTimeout waits for the given command to finish with a timeout. It assumes the command has already been started. If the command times out, it attempts to kill the process. copied from https://github.com/influxdata/telegraf

func Write

func Write(w io.Writer, order ByteOrder, data interface{}) error

Write writes the binary representation of data into w. Data must be a fixed-size value or a slice of fixed-size values, or a pointer to such data. Bytes written to w are encoded using the specified byte order and read from successive fields of the data. When writing structs, zero values are written for fields with blank (_) field names.

Types

type ByteOrder

type ByteOrder interface {
	Uint16([]byte) uint16
	Uint32([]byte) uint32
	Uint64([]byte) uint64
	PutUint16([]byte, uint16)
	PutUint32([]byte, uint32)
	PutUint64([]byte, uint64)
	String() string
}

A ByteOrder specifies how to convert byte sequences into 16-, 32-, or 64-bit unsigned integers.

type CounterInfo

type CounterInfo struct {
	PostName    string
	CounterName string
	Counter     syscall.Handle
}

CounterInfo copied from https://github.com/mackerelio/mackerel-agent/

func CreateCounter

func CreateCounter(query syscall.Handle, pname, cname string) (*CounterInfo, error)

CreateCounter XXX

type FILETIME

type FILETIME struct {
	DwLowDateTime  uint32
	DwHighDateTime uint32
}

type FakeInvoke

type FakeInvoke struct {
	CommandExpectedDir string // CommandExpectedDir specifies dir which includes expected outputs.
	Suffix             string // Suffix species expected file name suffix such as "fail"
	Error              error  // If Error specfied, return the error.
}

func (FakeInvoke) Command

func (i FakeInvoke) Command(name string, arg ...string) ([]byte, error)

Command in FakeInvoke returns from expected file if exists.

type Invoke

type Invoke struct{}

func (Invoke) Command

func (i Invoke) Command(name string, arg ...string) ([]byte, error)

type Invoker

type Invoker interface {
	Command(string, ...string) ([]byte, error)
}

type PDH_FMT_COUNTERVALUE_DOUBLE

type PDH_FMT_COUNTERVALUE_DOUBLE struct {
	CStatus     uint32
	DoubleValue float64
}

for double values

type PDH_FMT_COUNTERVALUE_LARGE

type PDH_FMT_COUNTERVALUE_LARGE struct {
	CStatus    uint32
	LargeValue int64
}

for 64 bit integer values

type PDH_FMT_COUNTERVALUE_LONG

type PDH_FMT_COUNTERVALUE_LONG struct {
	CStatus   uint32
	LongValue int32
	// contains filtered or unexported fields
}

for long values

type StringSet

type StringSet map[string]struct{}

StringSet represents a list of uniq strings

func NewStringSet

func NewStringSet(initItems ...string) StringSet

NewStringSet returns as new StringSet initialized with initItems

func (StringSet) Add

func (s StringSet) Add(item string)

Add adds a item to the set

func (StringSet) GetAll

func (s StringSet) GetAll() []string

GetAll returns all the strings from the set