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82 lines
3 KiB
Go
82 lines
3 KiB
Go
// Copyright 2018 Drone.IO Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package model
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import "fmt"
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// ProcStore persists process information to storage.
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type ProcStore interface {
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ProcLoad(int64) (*Proc, error)
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ProcFind(*Build, int) (*Proc, error)
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ProcChild(*Build, int, string) (*Proc, error)
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ProcList(*Build) ([]*Proc, error)
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ProcCreate([]*Proc) error
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ProcUpdate(*Proc) error
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ProcClear(*Build) error
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}
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// Proc represents a process in the build pipeline.
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// swagger:model proc
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type Proc struct {
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ID int64 `json:"id" meddler:"proc_id,pk"`
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BuildID int64 `json:"build_id" meddler:"proc_build_id"`
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PID int `json:"pid" meddler:"proc_pid"`
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PPID int `json:"ppid" meddler:"proc_ppid"`
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PGID int `json:"pgid" meddler:"proc_pgid"`
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Name string `json:"name" meddler:"proc_name"`
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State string `json:"state" meddler:"proc_state"`
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Error string `json:"error,omitempty" meddler:"proc_error"`
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ExitCode int `json:"exit_code" meddler:"proc_exit_code"`
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Started int64 `json:"start_time,omitempty" meddler:"proc_started"`
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Stopped int64 `json:"end_time,omitempty" meddler:"proc_stopped"`
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Machine string `json:"machine,omitempty" meddler:"proc_machine"`
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Platform string `json:"platform,omitempty" meddler:"proc_platform"`
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Environ map[string]string `json:"environ,omitempty" meddler:"proc_environ,json"`
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Children []*Proc `json:"children,omitempty" meddler:"-"`
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}
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// Running returns true if the process state is pending or running.
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func (p *Proc) Running() bool {
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return p.State == StatusPending || p.State == StatusRunning
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}
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// Failing returns true if the process state is failed, killed or error.
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func (p *Proc) Failing() bool {
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return p.State == StatusError || p.State == StatusKilled || p.State == StatusFailure
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}
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// Tree creates a process tree from a flat process list.
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func Tree(procs []*Proc) []*Proc {
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var nodes []*Proc
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for _, proc := range procs {
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if proc.PPID == 0 {
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nodes = append(nodes, proc)
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} else {
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parent, _ := findNode(nodes, proc.PPID)
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parent.Children = append(parent.Children, proc)
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}
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}
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return nodes
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}
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func findNode(nodes []*Proc, pid int) (*Proc, error) {
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for _, node := range nodes {
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if node.PID == pid {
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return node, nil
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}
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}
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return nil, fmt.Errorf("Corrupt proc structure")
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}
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