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authorBrent Baude <bbaude@redhat.com>2020-04-16 12:25:26 -0500
committerBrent Baude <bbaude@redhat.com>2020-04-16 15:53:58 -0500
commit241326a9a8c20ad7f2bcf651416b836e7778e090 (patch)
tree4001e8e47a022bb1b9bfbf2332c42e1aeb802f9e /cmd/podman/shared/workers.go
parent88c6fd06cd54fb9a8826306dfdf1a77e400de5de (diff)
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Podman V2 birth
remote podman v1 and replace with podman v2. Signed-off-by: Brent Baude <bbaude@redhat.com>
Diffstat (limited to 'cmd/podman/shared/workers.go')
-rw-r--r--cmd/podman/shared/workers.go138
1 files changed, 0 insertions, 138 deletions
diff --git a/cmd/podman/shared/workers.go b/cmd/podman/shared/workers.go
deleted file mode 100644
index a9d6bb77e..000000000
--- a/cmd/podman/shared/workers.go
+++ /dev/null
@@ -1,138 +0,0 @@
-package shared
-
-import (
- "reflect"
- "runtime"
- "strings"
- "sync"
-
- "github.com/sirupsen/logrus"
-)
-
-// JobFunc provides the function signature for the pool'ed functions
-type JobFunc func() error
-
-// Job defines the function to run
-type Job struct {
- ID string
- Fn JobFunc
-}
-
-// JobResult defines the results from the function ran
-type JobResult struct {
- Job Job
- Err error
-}
-
-// Pool defines the worker pool and queues
-type Pool struct {
- id string
- wg *sync.WaitGroup
- jobs chan Job
- results chan JobResult
- size int
- capacity int
-}
-
-// NewPool creates and initializes a new Pool
-func NewPool(id string, size int, capacity int) *Pool {
- var wg sync.WaitGroup
-
- // min for int...
- s := size
- if s > capacity {
- s = capacity
- }
-
- return &Pool{
- id,
- &wg,
- make(chan Job, capacity),
- make(chan JobResult, capacity),
- s,
- capacity,
- }
-}
-
-// Add Job to pool for parallel processing
-func (p *Pool) Add(job Job) {
- p.wg.Add(1)
- p.jobs <- job
-}
-
-// Run the Job's in the pool, gather and return results
-func (p *Pool) Run() ([]string, map[string]error, error) {
- var (
- ok = []string{}
- failures = map[string]error{}
- )
-
- for w := 0; w < p.size; w++ {
- w := w
- go p.newWorker(w)
- }
- close(p.jobs)
- p.wg.Wait()
-
- close(p.results)
- for r := range p.results {
- if r.Err == nil {
- ok = append(ok, r.Job.ID)
- } else {
- failures[r.Job.ID] = r.Err
- }
- }
-
- if logrus.GetLevel() == logrus.DebugLevel {
- for i, f := range failures {
- logrus.Debugf("Pool[%s, %s: %s]", p.id, i, f.Error())
- }
- }
-
- return ok, failures, nil
-}
-
-// newWorker creates new parallel workers to monitor jobs channel from Pool
-func (p *Pool) newWorker(slot int) {
- for job := range p.jobs {
- err := job.Fn()
- p.results <- JobResult{job, err}
- if logrus.GetLevel() == logrus.DebugLevel {
- n := strings.Split(runtime.FuncForPC(reflect.ValueOf(job.Fn).Pointer()).Name(), ".")
- logrus.Debugf("Worker#%d finished job %s/%s (%v)", slot, n[2:], job.ID, err)
- }
- p.wg.Done()
- }
-}
-
-// DefaultPoolSize provides the maximum number of parallel workers (int) as calculated by a basic
-// heuristic. This can be overridden by the --max-workers primary switch to podman.
-func DefaultPoolSize(name string) int {
- numCpus := runtime.NumCPU()
- switch name {
- case "init":
- fallthrough
- case "kill":
- fallthrough
- case "pause":
- fallthrough
- case "rm":
- fallthrough
- case "unpause":
- if numCpus <= 3 {
- return numCpus * 3
- }
- return numCpus * 4
- case "ps":
- return 8
- case "restart":
- return numCpus * 2
- case "stop":
- if numCpus <= 2 {
- return 4
- } else {
- return numCpus * 3
- }
- }
- return 3
-}