widgets

package
v0.0.0-...-cca9b4c Latest Latest
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 Go to latest Published: Oct 25, 2015 License: GPL-2.0 Imports: 14 Imported by: 0

Documentation

Index

Constants

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const ConnectionsWidgetType = "connections"
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const LoadWidgetType = "load"
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const MeminfoWidgetType = "meminfo"
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const NetworkWidgetType = "network"
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const UptimeWidgetType = "uptime"

Variables

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var AllWidgets = map[string]WidgetInitiator{
	LoadWidgetType:        func() Widget { return &LoadWidget{} },
	UptimeWidgetType:      func() Widget { return &UptimeWidget{} },
	MeminfoWidgetType:     func() Widget { return &MeminfoWidget{} },
	ConnectionsWidgetType: func() Widget { return &ConnectionsWidget{} },
	NetworkWidgetType:     func() Widget { return &NetworkWidget{} },
}
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var LoadAverageRegexp = regexp.MustCompile("^([^\\s]+)\\s+([^\\s]+)\\s+([^\\s]+)")
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var LoadCoresRegexp = regexp.MustCompile("^processor")
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var MeminfoRegexp = regexp.MustCompile("^([^:]*):\\s+(\\d+)")
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var NetworkDeviceSplitRegexp = regexp.MustCompile("\\s+")
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var TCPInfoRegexp = regexp.MustCompile("^\\s*(\\d+): ([0-9a-fA-F]+):([0-9a-fA-F]+) ([0-9a-fA-F]+):([0-9a-fA-F]+) ([0-9a-fA-F]+)")

Functions

func CombineToSeconds 

func CombineToSeconds(days, hours, minutes, seconds int) int

func GatherCores 

func GatherCores() (int, error)

func GatherLoadAverage 

func GatherLoadAverage() (one, five, fifteen string, err error)

func GatherLocalIPAddresses 

func GatherLocalIPAddresses() ([]net.IP, error)

func GatherTCPConnections 

func GatherTCPConnections() (tcp4, tcp6 int, err error)

func GatherUptime 

func GatherUptime() (days, hours, minutes, seconds int, err error)

func SplitSeconds 

func SplitSeconds(in int) (days, hours, minutes, seconds int)

Types

type BulkElement 

type BulkElement struct {
	Type       string          `json:"type"`
	Identifier string          `json:"identifier"`
	Widget     json.RawMessage `json:"widget"`
}

type ConnectionsWidget 

type ConnectionsWidget struct {
	TCP4 int `json:"tcp4"`
	TCP6 int `json:"tcp6"`
}

func (*ConnectionsWidget) Configuration 

func (widget *ConnectionsWidget) Configuration() interface{}

func (*ConnectionsWidget) Configure 

func (widget *ConnectionsWidget) Configure(json.RawMessage) error

func (*ConnectionsWidget) HasData 

func (widget *ConnectionsWidget) HasData() bool

func (*ConnectionsWidget) Identifier 

func (widget *ConnectionsWidget) Identifier() string

func (*ConnectionsWidget) Name 

func (widget *ConnectionsWidget) Name() string

func (*ConnectionsWidget) Start 

func (widget *ConnectionsWidget) Start() error

func (*ConnectionsWidget) Type 

func (widget *ConnectionsWidget) Type() string

func (*ConnectionsWidget) Update 

func (widget *ConnectionsWidget) Update() error

type LoadWidget 

type LoadWidget struct {
	One     string `json:"one"`
	Five    string `json:"five"`
	Fifteen string `json:"fifteen"`
	Cores   int    `json:"cores"`
}

func (*LoadWidget) Configuration 

func (widget *LoadWidget) Configuration() interface{}

func (*LoadWidget) Configure 

func (widget *LoadWidget) Configure(json.RawMessage) error

func (*LoadWidget) HasData 

func (widget *LoadWidget) HasData() bool

func (*LoadWidget) Identifier 

func (widget *LoadWidget) Identifier() string

func (*LoadWidget) Name 

func (widget *LoadWidget) Name() string

func (*LoadWidget) Start 

func (widget *LoadWidget) Start() error

func (*LoadWidget) Type 

func (widget *LoadWidget) Type() string

func (*LoadWidget) Update 

func (widget *LoadWidget) Update() error

type Meminfo 

type Meminfo struct {
	MainTotalKB   uint64
	MainFreeKB    uint64
	MainBuffersKB uint64
	MainCachedKB  uint64

	MainUsedKB uint64
}

func GatherMeminfo 

func GatherMeminfo() (*Meminfo, error)

type MeminfoWidget 

type MeminfoWidget struct {
	Total int `json:"total"`
	Used  int `json:"used"`
}

func (*MeminfoWidget) Configuration 

func (widget *MeminfoWidget) Configuration() interface{}

func (*MeminfoWidget) Configure 

func (widget *MeminfoWidget) Configure(json.RawMessage) error

func (*MeminfoWidget) HasData 

func (widget *MeminfoWidget) HasData() bool

func (*MeminfoWidget) Identifier 

func (widget *MeminfoWidget) Identifier() string

func (*MeminfoWidget) Name 

func (widget *MeminfoWidget) Name() string

func (*MeminfoWidget) Start 

func (widget *MeminfoWidget) Start() error

func (*MeminfoWidget) Type 

func (widget *MeminfoWidget) Type() string

func (*MeminfoWidget) Update 

func (widget *MeminfoWidget) Update() error

type NetworkDevice 

type NetworkDevice struct {
	Interface        string
	ReceivedBytes    uint64
	TransmittedBytes uint64
}

func GatherNetDevInfo 

func GatherNetDevInfo() ([]NetworkDevice, error)

func NewNetworkDevice 

func NewNetworkDevice(line string) *NetworkDevice

type NetworkWidget 

type NetworkWidget struct {
	Interface   string  `json:"interface"`
	Interval    float64 `json:"interval"`
	Received    int     `json:"received"`
	Transmitted int     `json:"transmitted"`
	// contains filtered or unexported fields
}

func (*NetworkWidget) Configuration 

func (widget *NetworkWidget) Configuration() interface{}

func (*NetworkWidget) Configure 

func (widget *NetworkWidget) Configure(c json.RawMessage) error

func (*NetworkWidget) HasData 

func (widget *NetworkWidget) HasData() bool

func (*NetworkWidget) Identifier 

func (widget *NetworkWidget) Identifier() string

func (*NetworkWidget) Name 

func (widget *NetworkWidget) Name() string

func (*NetworkWidget) Start 

func (widget *NetworkWidget) Start() error

func (*NetworkWidget) Type 

func (widget *NetworkWidget) Type() string

func (*NetworkWidget) Update 

func (widget *NetworkWidget) Update() error

type TCPInfo 

type TCPInfo struct {
	Entry      uint     // sl
	LocalIP    net.IP   // local_address
	LocalPort  uint16   // local_address
	RemoteIP   net.IP   // remote_address
	RemotePort uint16   // remote_address
	State      TCPState // st
}

func GatherTCP4Infos 

func GatherTCP4Infos() ([]TCPInfo, error)

func GatherTCP6Infos 

func GatherTCP6Infos() ([]TCPInfo, error)

func GatherTCPInfos 

func GatherTCPInfos(filename string) ([]TCPInfo, error)

func NewTCPInfo 

func NewTCPInfo(line string) (*TCPInfo, error)

type TCPState 

type TCPState int
const (
	TCPEstablished TCPState = 1
	TCPSynSent     TCPState = 2
	TCPSynRecv     TCPState = 3
	TCPFinWait1    TCPState = 4
	TCPFinWait2    TCPState = 5
	TCPTimeWait    TCPState = 6
	TCPClose       TCPState = 7
	TCPCloseWait   TCPState = 8
	TCPLastAck     TCPState = 9
	TCPListen      TCPState = 10
	TCPClosing     TCPState = 11
)

type UptimeWidget 

type UptimeWidget struct {
	LastUpdated time.Time
	Days        int
	Hours       int
	Minutes     int
	Seconds     int
}

func (*UptimeWidget) Configuration 

func (widget *UptimeWidget) Configuration() interface{}

func (*UptimeWidget) Configure 

func (widget *UptimeWidget) Configure(json.RawMessage) error

func (*UptimeWidget) HasData 

func (widget *UptimeWidget) HasData() bool

func (*UptimeWidget) Identifier 

func (widget *UptimeWidget) Identifier() string

func (*UptimeWidget) MarshalJSON 

func (widget *UptimeWidget) MarshalJSON() ([]byte, error)

func (*UptimeWidget) Name 

func (widget *UptimeWidget) Name() string

func (*UptimeWidget) Start 

func (widget *UptimeWidget) Start() error

func (*UptimeWidget) Type 

func (widget *UptimeWidget) Type() string

func (*UptimeWidget) UnmarshalJSON 

func (widget *UptimeWidget) UnmarshalJSON(data []byte) error

func (*UptimeWidget) Update 

func (widget *UptimeWidget) Update() error

type Widget 

type Widget interface {
	// Name should return a human-readable name for this widget describing what
	// it does.
	Name() string

	// Type should return the type of the widget.
	// unique among other widgets.
	Type() string

	// Identifier should return an unique identifier for the widget. It should
	// be based on its type and configuration.
	Identifier() string

	// HasData should return whether the widget has data to display. This should
	// default to false and become true when the widget gets information from
	// the client for the first time.
	HasData() bool

	// Update should update widget with the most recent information
	Update() error

	// Configure should configure a widget using data from the configuration
	// file.
	Configure(data json.RawMessage) error

	// Configuration should return the widget configuration
	Configuration() interface{}

	// Start should start any background processes needed to e.g. gather data,
	// if necessary.
	Start() error
}

Widget defines the interface for a general widget.

type WidgetInitiator 

type WidgetInitiator func() Widget

Source Files

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