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Refactor process package and introduce ProcessManager{} with tests (#75)

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* Add a process.Manager singleton with process.GetManager()

* Use process.GetManager everywhere

* Fix godoc comments for process module

* Increment process counter id after locking the mutex
This commit is contained in:
Matthias Loibl 2017-01-17 06:58:58 +01:00 • committed by Lunny Xiao
commit d1006150fb
10 changed files with 161 additions and 113 deletions
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4
models/git_diff.go
View file

@ -483,8 +483,8 @@ func GetDiffRange(repoPath, beforeCommitID, afterCommitID string, maxLines, maxL
return nil, fmt.Errorf("Start: %v", err)
}
pid := process.Add(fmt.Sprintf("GetDiffRange [repo_path: %s]", repoPath), cmd)
defer process.Remove(pid)
pid := process.GetManager().Add(fmt.Sprintf("GetDiffRange [repo_path: %s]", repoPath), cmd)
defer process.GetManager().Remove(pid)
diff, err := ParsePatch(maxLines, maxLineCharacters, maxFiles, stdout)
if err != nil {

18
models/pull.go
View file

@ -281,41 +281,41 @@ func (pr *PullRequest) Merge(doer *User, baseGitRepo *git.Repository) (err error
defer os.RemoveAll(path.Dir(tmpBasePath))
var stderr string
if _, stderr, err = process.ExecTimeout(5*time.Minute,
if _, stderr, err = process.GetManager().ExecTimeout(5*time.Minute,
fmt.Sprintf("PullRequest.Merge (git clone): %s", tmpBasePath),
"git", "clone", baseGitRepo.Path, tmpBasePath); err != nil {
return fmt.Errorf("git clone: %s", stderr)
}
// Check out base branch.
if _, stderr, err = process.ExecDir(-1, tmpBasePath,
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git checkout): %s", tmpBasePath),
"git", "checkout", pr.BaseBranch); err != nil {
return fmt.Errorf("git checkout: %s", stderr)
}
// Add head repo remote.
if _, stderr, err = process.ExecDir(-1, tmpBasePath,
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git remote add): %s", tmpBasePath),
"git", "remote", "add", "head_repo", headRepoPath); err != nil {
return fmt.Errorf("git remote add [%s -> %s]: %s", headRepoPath, tmpBasePath, stderr)
}
// Merge commits.
if _, stderr, err = process.ExecDir(-1, tmpBasePath,
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git fetch): %s", tmpBasePath),
"git", "fetch", "head_repo"); err != nil {
return fmt.Errorf("git fetch [%s -> %s]: %s", headRepoPath, tmpBasePath, stderr)
}
if _, stderr, err = process.ExecDir(-1, tmpBasePath,
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git merge --no-ff --no-commit): %s", tmpBasePath),
"git", "merge", "--no-ff", "--no-commit", "head_repo/"+pr.HeadBranch); err != nil {
return fmt.Errorf("git merge --no-ff --no-commit [%s]: %v - %s", tmpBasePath, err, stderr)
}
sig := doer.NewGitSig()
if _, stderr, err = process.ExecDir(-1, tmpBasePath,
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git merge): %s", tmpBasePath),
"git", "commit", fmt.Sprintf("--author='%s <%s>'", sig.Name, sig.Email),
"-m", fmt.Sprintf("Merge branch '%s' of %s/%s into %s", pr.HeadBranch, pr.HeadUserName, pr.HeadRepo.Name, pr.BaseBranch)); err != nil {
@ -323,7 +323,7 @@ func (pr *PullRequest) Merge(doer *User, baseGitRepo *git.Repository) (err error
}
// Push back to upstream.
if _, stderr, err = process.ExecDir(-1, tmpBasePath,
if _, stderr, err = process.GetManager().ExecDir(-1, tmpBasePath,
fmt.Sprintf("PullRequest.Merge (git push): %s", tmpBasePath),
"git", "push", baseGitRepo.Path, pr.BaseBranch); err != nil {
return fmt.Errorf("git push: %s", stderr)
@ -437,14 +437,14 @@ func (pr *PullRequest) testPatch() (err error) {
defer os.Remove(indexTmpPath)
var stderr string
_, stderr, err = process.ExecDirEnv(-1, "", fmt.Sprintf("testPatch (git read-tree): %d", pr.BaseRepo.ID),
_, stderr, err = process.GetManager().ExecDirEnv(-1, "", fmt.Sprintf("testPatch (git read-tree): %d", pr.BaseRepo.ID),
[]string{"GIT_DIR=" + pr.BaseRepo.RepoPath(), "GIT_INDEX_FILE=" + indexTmpPath},
"git", "read-tree", pr.BaseBranch)
if err != nil {
return fmt.Errorf("git read-tree --index-output=%s %s: %v - %s", indexTmpPath, pr.BaseBranch, err, stderr)
}
_, stderr, err = process.ExecDirEnv(-1, "", fmt.Sprintf("testPatch (git apply --check): %d", pr.BaseRepo.ID),
_, stderr, err = process.GetManager().ExecDirEnv(-1, "", fmt.Sprintf("testPatch (git apply --check): %d", pr.BaseRepo.ID),
[]string{"GIT_INDEX_FILE=" + indexTmpPath, "GIT_DIR=" + pr.BaseRepo.RepoPath()},
"git", "apply", "--check", "--cached", patchPath)
if err != nil {

20
models/release.go
View file

@ -10,14 +10,11 @@ import (
"strings"
"time"
"github.com/go-xorm/xorm"
"code.gitea.io/git"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/sdk/gitea"
"github.com/go-xorm/xorm"
)
// Release represents a release of repository.
@ -159,7 +156,7 @@ func createTag(gitRepo *git.Repository, rel *Release) error {
func addReleaseAttachments(releaseID int64, attachmentUUIDs []string) (err error) {
// Check attachments
var attachments = make([]*Attachment,0)
var attachments = make([]*Attachment, 0)
for _, uuid := range attachmentUUIDs {
attach, err := getAttachmentByUUID(x, uuid)
if err != nil {
@ -257,9 +254,10 @@ func GetReleasesByRepoIDAndNames(repoID int64, tagNames []string) (rels []*Relea
}
type releaseMetaSearch struct {
ID [] int64
Rel [] *Release
ID []int64
Rel []*Release
}
func (s releaseMetaSearch) Len() int {
return len(s.ID)
}
@ -272,18 +270,18 @@ func (s releaseMetaSearch) Less(i, j int) bool {
}
// GetReleaseAttachments retrieves the attachments for releases
func GetReleaseAttachments(rels ... *Release) (err error){
func GetReleaseAttachments(rels ...*Release) (err error) {
if len(rels) == 0 {
return
}
// To keep this efficient as possible sort all releases by id,
// To keep this efficient as possible sort all releases by id,
// select attachments by release id,
// then merge join them
// Sort
var sortedRels = releaseMetaSearch{ID: make([]int64, len(rels)), Rel: make([]*Release, len(rels))}
var attachments [] *Attachment
var attachments []*Attachment
for index, element := range rels {
element.Attachments = []*Attachment{}
sortedRels.ID[index] = element.ID
@ -375,7 +373,7 @@ func DeleteReleaseByID(id int64, u *User, delTag bool) error {
}
if delTag {
_, stderr, err := process.ExecDir(-1, repo.RepoPath(),
_, stderr, err := process.GetManager().ExecDir(-1, repo.RepoPath(),
fmt.Sprintf("DeleteReleaseByID (git tag -d): %d", rel.ID),
"git", "tag", "-d", rel.TagName)
if err != nil && !strings.Contains(stderr, "not found") {

26
models/repo.go
View file

@ -147,10 +147,10 @@ func NewRepoContext() {
// Git requires setting user.name and user.email in order to commit changes.
for configKey, defaultValue := range map[string]string{"user.name": "Gitea", "user.email": "gitea@fake.local"} {
if stdout, stderr, err := process.Exec("NewRepoContext(get setting)", "git", "config", "--get", configKey); err != nil || strings.TrimSpace(stdout) == "" {
if stdout, stderr, err := process.GetManager().Exec("NewRepoContext(get setting)", "git", "config", "--get", configKey); err != nil || strings.TrimSpace(stdout) == "" {
// ExitError indicates this config is not set
if _, ok := err.(*exec.ExitError); ok || strings.TrimSpace(stdout) == "" {
if _, stderr, gerr := process.Exec("NewRepoContext(set "+configKey+")", "git", "config", "--global", configKey, defaultValue); gerr != nil {
if _, stderr, gerr := process.GetManager().Exec("NewRepoContext(set "+configKey+")", "git", "config", "--global", configKey, defaultValue); gerr != nil {
log.Fatal(4, "Fail to set git %s(%s): %s", configKey, gerr, stderr)
}
log.Info("Git config %s set to %s", configKey, defaultValue)
@ -161,7 +161,7 @@ func NewRepoContext() {
}
// Set git some configurations.
if _, stderr, err := process.Exec("NewRepoContext(git config --global core.quotepath false)",
if _, stderr, err := process.GetManager().Exec("NewRepoContext(git config --global core.quotepath false)",
"git", "config", "--global", "core.quotepath", "false"); err != nil {
log.Fatal(4, "Fail to execute 'git config --global core.quotepath false': %s", stderr)
}
@ -797,20 +797,20 @@ func CleanUpMigrateInfo(repo *Repository) (*Repository, error) {
// initRepoCommit temporarily changes with work directory.
func initRepoCommit(tmpPath string, sig *git.Signature) (err error) {
var stderr string
if _, stderr, err = process.ExecDir(-1,
if _, stderr, err = process.GetManager().ExecDir(-1,
tmpPath, fmt.Sprintf("initRepoCommit (git add): %s", tmpPath),
"git", "add", "--all"); err != nil {
return fmt.Errorf("git add: %s", stderr)
}
if _, stderr, err = process.ExecDir(-1,
if _, stderr, err = process.GetManager().ExecDir(-1,
tmpPath, fmt.Sprintf("initRepoCommit (git commit): %s", tmpPath),
"git", "commit", fmt.Sprintf("--author='%s <%s>'", sig.Name, sig.Email),
"-m", "Initial commit"); err != nil {
return fmt.Errorf("git commit: %s", stderr)
}
if _, stderr, err = process.ExecDir(-1,
if _, stderr, err = process.GetManager().ExecDir(-1,
tmpPath, fmt.Sprintf("initRepoCommit (git push): %s", tmpPath),
"git", "push", "origin", "master"); err != nil {
return fmt.Errorf("git push: %s", stderr)
@ -856,8 +856,10 @@ func getRepoInitFile(tp, name string) ([]byte, error) {
func prepareRepoCommit(repo *Repository, tmpDir, repoPath string, opts CreateRepoOptions) error {
// Clone to temporary path and do the init commit.
_, stderr, err := process.Exec(
fmt.Sprintf("initRepository(git clone): %s", repoPath), "git", "clone", repoPath, tmpDir)
_, stderr, err := process.GetManager().Exec(
fmt.Sprintf("initRepository(git clone): %s", repoPath),
"git", "clone", repoPath, tmpDir,
)
if err != nil {
return fmt.Errorf("git clone: %v - %s", err, stderr)
}
@ -1066,7 +1068,7 @@ func CreateRepository(u *User, opts CreateRepoOptions) (_ *Repository, err error
return nil, fmt.Errorf("initRepository: %v", err)
}
_, stderr, err := process.ExecDir(-1,
_, stderr, err := process.GetManager().ExecDir(-1,
repoPath, fmt.Sprintf("CreateRepository(git update-server-info): %s", repoPath),
"git", "update-server-info")
if err != nil {
@ -1839,7 +1841,7 @@ func GitGcRepos() error {
if err := repo.GetOwner(); err != nil {
return err
}
_, stderr, err := process.ExecDir(
_, stderr, err := process.GetManager().ExecDir(
time.Duration(setting.Git.Timeout.GC)*time.Second,
RepoPath(repo.Owner.Name, repo.Name), "Repository garbage collection",
"git", args...)
@ -2192,14 +2194,14 @@ func ForkRepository(u *User, oldRepo *Repository, name, desc string) (_ *Reposit
}
repoPath := RepoPath(u.Name, repo.Name)
_, stderr, err := process.ExecTimeout(10*time.Minute,
_, stderr, err := process.GetManager().ExecTimeout(10*time.Minute,
fmt.Sprintf("ForkRepository(git clone): %s/%s", u.Name, repo.Name),
"git", "clone", "--bare", oldRepo.RepoPath(), repoPath)
if err != nil {
return nil, fmt.Errorf("git clone: %v", stderr)
}
_, stderr, err = process.ExecDir(-1,
_, stderr, err = process.GetManager().ExecDir(-1,
repoPath, fmt.Sprintf("ForkRepository(git update-server-info): %s", repoPath),
"git", "update-server-info")
if err != nil {

4
models/repo_editor.go
View file

@ -212,8 +212,8 @@ func (repo *Repository) GetDiffPreview(branch, treePath, content string) (diff *
return nil, fmt.Errorf("Start: %v", err)
}
pid := process.Add(fmt.Sprintf("GetDiffPreview [repo_path: %s]", repo.RepoPath()), cmd)
defer process.Remove(pid)
pid := process.GetManager().Add(fmt.Sprintf("GetDiffPreview [repo_path: %s]", repo.RepoPath()), cmd)
defer process.GetManager().Remove(pid)
diff, err = ParsePatch(setting.Git.MaxGitDiffLines, setting.Git.MaxGitDiffLineCharacters, setting.Git.MaxGitDiffFiles, stdout)
if err != nil {

4
models/repo_mirror.go
View file

@ -137,7 +137,7 @@ func (m *Mirror) runSync() bool {
gitArgs = append(gitArgs, "--prune")
}
if _, stderr, err := process.ExecDir(
if _, stderr, err := process.GetManager().ExecDir(
timeout, repoPath, fmt.Sprintf("Mirror.runSync: %s", repoPath),
"git", gitArgs...); err != nil {
desc := fmt.Sprintf("Fail to update mirror repository '%s': %s", repoPath, stderr)
@ -148,7 +148,7 @@ func (m *Mirror) runSync() bool {
return false
}
if m.Repo.HasWiki() {
if _, stderr, err := process.ExecDir(
if _, stderr, err := process.GetManager().ExecDir(
timeout, wikiPath, fmt.Sprintf("Mirror.runSync: %s", wikiPath),
"git", "remote", "update", "--prune"); err != nil {
desc := fmt.Sprintf("Fail to update mirror wiki repository '%s': %s", wikiPath, stderr)

4
models/ssh_key.go
View file

@ -197,7 +197,7 @@ func SSHKeyGenParsePublicKey(key string) (string, int, error) {
}
defer os.Remove(tmpName)
stdout, stderr, err := process.Exec("SSHKeyGenParsePublicKey", setting.SSH.KeygenPath, "-lf", tmpName)
stdout, stderr, err := process.GetManager().Exec("SSHKeyGenParsePublicKey", setting.SSH.KeygenPath, "-lf", tmpName)
if err != nil {
return "", 0, fmt.Errorf("fail to parse public key: %s - %s", err, stderr)
}
@ -382,7 +382,7 @@ func addKey(e Engine, key *PublicKey) (err error) {
if err = ioutil.WriteFile(tmpPath, []byte(key.Content), 0644); err != nil {
return err
}
stdout, stderr, err := process.Exec("AddPublicKey", "ssh-keygen", "-lf", tmpPath)
stdout, stderr, err := process.GetManager().Exec("AddPublicKey", "ssh-keygen", "-lf", tmpPath)
if err != nil {
return fmt.Errorf("'ssh-keygen -lf %s' failed with error '%s': %s", tmpPath, err, stderr)
} else if len(stdout) < 2 {

159
modules/process/manager.go
View file

@ -9,71 +9,108 @@ import (
"errors"
"fmt"
"os/exec"
"sync"
"time"
"code.gitea.io/gitea/modules/log"
)
// TODO: This packages still uses a singleton for the Manager.
// Once there's a decent web framework and dependencies are passed around like they should,
// then we delete the singleton.
var (
// ErrExecTimeout represent a timeout error
ErrExecTimeout = errors.New("Process execution timeout")
// DefaultTimeout is the timeout used by Exec* family
// of function when timeout parameter is omitted or
// passed as -1
// NOTE: could be custom in config file for default.
DefaultTimeout = 60 * time.Second
manager *Manager
)
// Process represents a working process inherit from Gogs.
type Process struct {
Pid int64 // Process ID, not system one.
PID int64 // Process ID, not system one.
Description string
Start time.Time
Cmd *exec.Cmd
}
// List of existing processes.
var (
curPid int64 = 1
Processes []*Process
)
// Manager knows about all processes and counts PIDs.
type Manager struct {
mutex sync.Mutex
// Add adds a existing process and returns its PID.
func Add(desc string, cmd *exec.Cmd) int64 {
pid := curPid
Processes = append(Processes, &Process{
Pid: pid,
Description: desc,
counter int64
Processes map[int64]*Process
}
// GetManager returns a Manager and initializes one as singleton if there's none yet
func GetManager() *Manager {
if manager == nil {
manager = &Manager{
Processes: make(map[int64]*Process),
}
}
return manager
}
// Add a process to the ProcessManager and returns its PID.
func (pm *Manager) Add(description string, cmd *exec.Cmd) int64 {
pm.mutex.Lock()
pid := pm.counter + 1
pm.Processes[pid] = &Process{
PID: pid,
Description: description,
Start: time.Now(),
Cmd: cmd,
})
curPid++
}
pm.counter = pid
pm.mutex.Unlock()
return pid
}
// Remove a process from the ProcessManager.
func (pm *Manager) Remove(pid int64) {
pm.mutex.Lock()
delete(pm.Processes, pid)
pm.mutex.Unlock()
}
// Exec a command and use the default timeout.
func (pm *Manager) Exec(desc, cmdName string, args ...string) (string, string, error) {
return pm.ExecDir(-1, "", desc, cmdName, args...)
}
// ExecTimeout a command and use a specific timeout duration.
func (pm *Manager) ExecTimeout(timeout time.Duration, desc, cmdName string, args ...string) (string, string, error) {
return pm.ExecDir(timeout, "", desc, cmdName, args...)
}
// ExecDir a command and use the default timeout.
func (pm *Manager) ExecDir(timeout time.Duration, dir, desc, cmdName string, args ...string) (string, string, error) {
return pm.ExecDirEnv(timeout, dir, desc, nil, cmdName, args...)
}
// ExecDirEnv runs a command in given path and environment variables, and waits for its completion
// up to the given timeout (or DefaultTimeout if -1 is given).
// Returns its complete stdout and stderr
// outputs and an error, if any (including timeout)
func ExecDirEnv(timeout time.Duration, dir, desc string, env []string, cmdName string, args ...string) (string, string, error) {
func (pm *Manager) ExecDirEnv(timeout time.Duration, dir, desc string, env []string, cmdName string, args ...string) (string, string, error) {
if timeout == -1 {
timeout = DefaultTimeout
timeout = 60 * time.Second
}
bufOut := new(bytes.Buffer)
bufErr := new(bytes.Buffer)
stdOut := new(bytes.Buffer)
stdErr := new(bytes.Buffer)
cmd := exec.Command(cmdName, args...)
cmd.Dir = dir
cmd.Env = env
cmd.Stdout = bufOut
cmd.Stderr = bufErr
cmd.Stdout = stdOut
cmd.Stderr = stdErr
if err := cmd.Start(); err != nil {
return "", err.Error(), err
return "", "", err
}
pid := Add(desc, cmd)
pid := pm.Add(desc, cmd)
done := make(chan error)
go func() {
done <- cmd.Wait()
@ -82,61 +119,39 @@ func ExecDirEnv(timeout time.Duration, dir, desc string, env []string, cmdName s
var err error
select {
case <-time.After(timeout):
if errKill := Kill(pid); errKill != nil {
log.Error(4, "Exec(%d:%s): %v", pid, desc, errKill)
if errKill := pm.Kill(pid); errKill != nil {
log.Error(4, "exec(%d:%s) failed to kill: %v", pid, desc, errKill)
}
<-done
return "", ErrExecTimeout.Error(), ErrExecTimeout
return "", "", ErrExecTimeout
case err = <-done:
}
Remove(pid)
return bufOut.String(), bufErr.String(), err
}
pm.Remove(pid)
// ExecDir works exactly like ExecDirEnv except no environment variable is provided.
func ExecDir(timeout time.Duration, dir, desc, cmdName string, args ...string) (string, string, error) {
return ExecDirEnv(timeout, dir, desc, nil, cmdName, args...)
}
// ExecTimeout runs a command and waits for its completion
// up to the given timeout (or DefaultTimeout if -1 is given).
// Returns its complete stdout and stderr
// outputs and an error, if any (including timeout)
func ExecTimeout(timeout time.Duration, desc, cmdName string, args ...string) (string, string, error) {
return ExecDir(timeout, "", desc, cmdName, args...)
}
// Exec runs a command and waits for its completion
// up to DefaultTimeout. Returns its complete stdout and stderr
// outputs and an error, if any (including timeout)
func Exec(desc, cmdName string, args ...string) (string, string, error) {
return ExecDir(-1, "", desc, cmdName, args...)
}
// Remove removes a process from list.
func Remove(pid int64) {
for i, proc := range Processes {
if proc.Pid == pid {
Processes = append(Processes[:i], Processes[i+1:]...)
return
}
if err != nil {
out := fmt.Errorf("exec(%d:%s) failed: %v stdout: %v stderr: %v", pid, desc, err, stdOut, stdErr)
return stdOut.String(), stdErr.String(), out
}
return stdOut.String(), stdErr.String(), nil
}
// Kill kills and removes a process from list.
func Kill(pid int64) error {
for i, proc := range Processes {
if proc.Pid == pid {
if proc.Cmd != nil && proc.Cmd.Process != nil &&
proc.Cmd.ProcessState != nil && !proc.Cmd.ProcessState.Exited() {
if err := proc.Cmd.Process.Kill(); err != nil {
return fmt.Errorf("fail to kill process(%d/%s): %v", proc.Pid, proc.Description, err)
}
// Kill and remove a process from list.
func (pm *Manager) Kill(pid int64) error {
if proc, exists := pm.Processes[pid]; exists {
pm.mutex.Lock()
if proc.Cmd != nil &&
proc.Cmd.Process != nil &&
proc.Cmd.ProcessState != nil &&
!proc.Cmd.ProcessState.Exited() {
if err := proc.Cmd.Process.Kill(); err != nil {
return fmt.Errorf("failed to kill process(%d/%s): %v", pid, proc.Description, err)
}
Processes = append(Processes[:i], Processes[i+1:]...)
return nil
}
delete(pm.Processes, pid)
pm.mutex.Unlock()
}
return nil
}

33
modules/process/manager_test.go Normal file
View file

@ -0,0 +1,33 @@
package process
import (
"os/exec"
"testing"
"github.com/stretchr/testify/assert"
)
func TestManager_Add(t *testing.T) {
pm := Manager{Processes: make(map[int64]*Process)}
pid := pm.Add("foo", exec.Command("foo"))
assert.Equal(t, int64(1), pid, "expected to get pid 1 got %d", pid)
pid = pm.Add("bar", exec.Command("bar"))
assert.Equal(t, int64(2), pid, "expected to get pid 2 got %d", pid)
}
func TestManager_Remove(t *testing.T) {
pm := Manager{Processes: make(map[int64]*Process)}
pid1 := pm.Add("foo", exec.Command("foo"))
assert.Equal(t, int64(1), pid1, "expected to get pid 1 got %d", pid1)
pid2 := pm.Add("bar", exec.Command("bar"))
assert.Equal(t, int64(2), pid2, "expected to get pid 2 got %d", pid2)
pm.Remove(pid2)
_, exists := pm.Processes[pid2]
assert.False(t, exists, "PID %d is in the list but shouldn't", pid2)
}

2
routers/admin/admin.go
View file

@ -246,7 +246,7 @@ func Monitor(ctx *context.Context) {
ctx.Data["Title"] = ctx.Tr("admin.monitor")
ctx.Data["PageIsAdmin"] = true
ctx.Data["PageIsAdminMonitor"] = true
ctx.Data["Processes"] = process.Processes
ctx.Data["Processes"] = process.GetManager().Processes
ctx.Data["Entries"] = cron.ListTasks()
ctx.HTML(200, tplMonitor)
}