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30c3e139d7
* proc.Tree() func do not depend on sorted procs list * Add test case Signed-off-by: 6543 <6543@obermui.de>
105 lines
3.5 KiB
Go
105 lines
3.5 KiB
Go
// Copyright 2021 Woodpecker Authors
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// 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" xorm:"pk autoincr 'proc_id'"`
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BuildID int64 `json:"build_id" xorm:"UNIQUE(s) INDEX 'proc_build_id'"`
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PID int `json:"pid" xorm:"UNIQUE(s) 'proc_pid'"`
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PPID int `json:"ppid" xorm:"proc_ppid"`
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PGID int `json:"pgid" xorm:"proc_pgid"`
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Name string `json:"name" xorm:"proc_name"`
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State StatusValue `json:"state" xorm:"proc_state"`
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Error string `json:"error,omitempty" xorm:"VARCHAR(500) proc_error"`
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ExitCode int `json:"exit_code" xorm:"proc_exit_code"`
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Started int64 `json:"start_time,omitempty" xorm:"proc_started"`
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Stopped int64 `json:"end_time,omitempty" xorm:"proc_stopped"`
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Machine string `json:"machine,omitempty" xorm:"proc_machine"`
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Platform string `json:"platform,omitempty" xorm:"proc_platform"`
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Environ map[string]string `json:"environ,omitempty" xorm:"json 'proc_environ'"`
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Children []*Proc `json:"children,omitempty" xorm:"-"`
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}
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// TableName return database table name for xorm
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func (Proc) TableName() string {
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return "procs"
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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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// IsParent returns true if the process is a parent process.
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func (p *Proc) IsParent() bool {
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return p.PPID == 0
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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, error) {
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var nodes []*Proc
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// init parent nodes
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for i := range procs {
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if procs[i].IsParent() {
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nodes = append(nodes, procs[i])
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}
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}
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// assign children to parrents
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for i := range procs {
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if !procs[i].IsParent() {
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parent, err := findNode(nodes, procs[i].PPID)
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if err != nil {
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return nil, err
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}
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parent.Children = append(parent.Children, procs[i])
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}
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}
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return nodes, nil
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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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