processes

package
v2.1.0+incompatible Latest Latest
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 Go to latest Published: Feb 20, 2020 License: Apache-2.0 Imports: 24 Imported by: 13

Documentation

Overview

Generated source file. Edit files in 'src' folder

Index

Constants

View Source 
const (
	STDIN_CLOSE      = iota
	STDIN_TO_MANAGER = iota
)
View Source 
const (
	STDOUT_CLOSE      = iota
	STDOUT_TO_LOGGER  = iota
	STDOUT_TO_MANAGER = iota
)
View Source 
const (
	STDERR_CLOSE      = iota
	STDERR_TO_LOGGER  = iota
	STDERR_TO_MANAGER = iota
)
View Source 
const (
	PROCESS_STARTED = 0x1
	PROCESS_READY   = 0x2
	PROCESS_DIED    = 0x4
)
View Source 
const (
	//	JOB_STATUS_UNSET = iota  // zero should be the unset
	NEVER_RAN        = iota
	RUNNING          = iota
	STOPPED          = iota
	WAITING_FOR_DEPS = iota
	STARTING         = iota
	STOPPING         = iota
	RESTARTING       = iota
	FAILED           = iota
)

enum JOB_STATUS

View Source 
const (
	CONTAINERERROR_UNKNOWN   = iota
	CONTAINERERROR_DUPLICATE = iota
)
View Source 
const (
	JOBERROR_UNKNOWN                    = iota
	JOBERROR_NOT_FOUND                  = iota // don't have a job by that name
	JOBERROR_DUPLICATE_JOB              = iota
	JOBERROR_MISSING_DEPENDENCY         = iota
	JOBERROR_DEPENDENCY_FAILURE         = iota
	JOBERROR_MISSING_CONTAINER_TEMPLATE = iota
	JOBERROR_INVALID_CONFIG             = iota // config options don't make sense
	JOBERROR_INTERNAL_ERROR             = iota // catch all for things which should just not happen
)
View Source 
const (
	EPOLLET        = 1 << 31
	MaxEpollEvents = 32
)
View Source 
const (
	EFD_SEMAPHORE = 00000001
	EFD_CLOEXEC   = 02000000
	EFD_NONBLOCK  = 00004000
)

Variables

View Source 
var CWD string
View Source 
var PROCESS_STATES = map[uint32]string{
	0:               "unknown",
	PROCESS_STARTED: "started",
	PROCESS_READY:   "ready",
	PROCESS_DIED:    "died",
}
View Source 
var THIS_DIR string

Functions

func ExecFile 

func ExecFile(path string, args []string, env []string, opts *ExecFileOpts) (pid int, errno int)

func ForEachTrackedProcess 

func ForEachTrackedProcess(cb func(int, *ProcessRecord))

func InitProcessEvents 

func InitProcessEvents(config maestroSpecs.StatsConfig)

called after config file is read

func InitProcessMgmt 

func InitProcessMgmt(config *configs.ProcessesConfig)

func InitProcessSubsystem 

func InitProcessSubsystem(maxevent uint32)

func IsJobActive 

func IsJobActive(jobname string) (status bool, pid int)

Returns true, pid if the job specified by jobname is active

func New_processEventFIFO 

func New_processEventFIFO(maxsize uint32) (ret *processEventFIFO)

func NumberOfTrackedProcesses 

func NumberOfTrackedProcesses() int

func ReapChildren 

func ReapChildren() (ret int, status unix.WaitStatus)

attempts to reap a child, but does not block a valid PID is returned if a reap happened, otherwise 0

func RegisterContainer 

func RegisterContainer(cont maestroSpecs.ContainerTemplate) (err error)

func RegisterJob 

func RegisterJob(job maestroSpecs.JobDefinition) (err error)

func RegisterJobOverwrite 

func RegisterJobOverwrite(job maestroSpecs.JobDefinition) (err error)

func RegisterMutableJob 

func RegisterMutableJob(job maestroSpecs.JobDefinition) (err error)

func RestartJob 

func RestartJob(name string) (errout error)

func StartAllAutoStartJobs 

func StartAllAutoStartJobs()

func StartEventsMonitor 

func StartEventsMonitor()

func StartJob 

func StartJob(name string) (errout error)

func StopEventsMonitor 

func StopEventsMonitor()

func SubmitEvent 

func SubmitEvent(ev Event)

func TrackNewProcessByPid 

func TrackNewProcessByPid(pid int) (ret *ProcessRecord, old *ProcessRecord)

creates a new ProcessRecord, stores it in the tracking map, and returns this new one the old one - if for some rare reason a process with the same PID was already there

func ValidateJobs 

func ValidateJobs() error

Types

type ContainerError 

type ContainerError struct {
	ContainerName string
	Code          int
	Aux           string
}

func (*ContainerError) Error 

func (this *ContainerError) Error() string

type Event 

type Event interface {
	MarshalJSON() ([]byte, error)
	UnmarshalJSON(b []byte) error
}

func GetLastLocalEvents 

func GetLastLocalEvents(max uint32) (ret []*Event)

func GetLastUpstreamEvents 

func GetLastUpstreamEvents(max uint32) (ret []*Event)

type EventList 

type EventList struct {
	Events []*Event `json:"events"`
}

type ExecFileOpts 

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

func NewExecFileOpts 

func NewExecFileOpts(jobname string, compid string) (opts *ExecFileOpts)

func (*ExecFileOpts) GetOriginLabelId 

func (opts *ExecFileOpts) GetOriginLabelId() uint32

func (*ExecFileOpts) GetStderrFd 

func (opts *ExecFileOpts) GetStderrFd() (ret int)

func (*ExecFileOpts) GetStdoutFd 

func (opts *ExecFileOpts) GetStdoutFd() (ret int)

func (*ExecFileOpts) SetJobName 

func (opts *ExecFileOpts) SetJobName(name string)

func (*ExecFileOpts) SetMessageString 

func (opts *ExecFileOpts) SetMessageString(msg string)

func (*ExecFileOpts) SetNewPgid 

func (opts *ExecFileOpts) SetNewPgid()

func (*ExecFileOpts) SetNewSid 

func (opts *ExecFileOpts) SetNewSid()

func (*ExecFileOpts) SetOkString 

func (opts *ExecFileOpts) SetOkString(ok bool)

func (*ExecFileOpts) SetUsePgid 

func (opts *ExecFileOpts) SetUsePgid(pid int)

type JobError 

type JobError struct {
	JobName string
	Code    int
	Aux     string
}

func (*JobError) Error 

func (this *JobError) Error() string

type JobStatusData 

type JobStatusData interface {
	MarshalJSON() ([]byte, error)
}

func GetJobStatus 

func GetJobStatus() (data JobStatusData, err error)

type MemStatEvent 

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

func NewVirtualMemEvent 

func NewVirtualMemEvent(stats *mem.VirtualMemoryStat) (ret *MemStatEvent)

func (MemStatEvent) MarshalJSON 

func (this MemStatEvent) MarshalJSON() ([]byte, error)

func (MemStatEvent) UnmarshalJSON 

func (this MemStatEvent) UnmarshalJSON(b []byte) error

type ProcessEvent 

type ProcessEvent struct {
	Pid int `json:"pid"`

	// The PID may change on restart, but the job name remains the same
	Job     string `json:"job"`
	ExitVal int    `json:"exitVal"` // 0 if the process is not exited
	// contains filtered or unexported fields
}

func (ProcessEvent) MarshalJSON 

func (this ProcessEvent) MarshalJSON() ([]byte, error)

func (ProcessEvent) UnmarshalJSON 

func (this ProcessEvent) UnmarshalJSON(b []byte) error

type ProcessRecord 

type ProcessRecord struct {
	Pid int
	// the Path to start the process executable
	Path string
	// serves as a generic identifier for a particular job
	// jobs maybe restarted, etc. A Job should be a unique name to the
	// instance of maestro on this gateway
	Job       string
	CompId    string
	Started   time.Time
	Stopped   time.Time
	State     uint32 // see PROCESS_STATES
	ExitValue int
}

a record of start and/or stop operation. basically a single life of a process (not a Job)

func GetTrackedProcessByPid 

func GetTrackedProcessByPid(pid int) (ret *ProcessRecord, ok bool)

returns a ProcessRecord by its PID (process ID)

func RemoveTrackedProcessByPid 

func RemoveTrackedProcessByPid(pid int) (ret *ProcessRecord)

type ProcessStatsConfig 

type ProcessStatsConfig interface {
	GetInterval() uint32
	GetConfig_CheckMem() (uint32, bool)
}

type WakeupFd 

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

func NewWakeupFd 

func NewWakeupFd() (ret *WakeupFd, errno error)

Linux version:

func (*WakeupFd) ReadWakeup 

func (this *WakeupFd) ReadWakeup() (ret uint64, errno error)

func (*WakeupFd) Wakeup 

func (this *WakeupFd) Wakeup(val uint64) (errno error)

Source Files

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