fix: fix some modules loaded failed#833
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fly602 merged 2 commits intolinuxdeepin:masterfrom Jul 15, 2025
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dde-session-daemon part2 load after org.deepin.dde.SessionManager1 running Log: pms: BUG-323803
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Hey @fly602 - I've reviewed your changes - here's some feedback:
- You’re ignoring the error from dbus.SessionBus()—make sure to handle or log it before using sessionBus to avoid nil-pointer issues.
- The signal loop started via sessionSigLoop.Start() is never stopped—add proper cleanup (e.g. sessionSigLoop.Stop()) after removing the handler to prevent resource leaks.
- Dropping the DDE_SESSION_PROCESS_COOKIE_ID check in StartPart2 may introduce unexpected states—verify that removing this validation is safe for all launch scenarios.
Prompt for AI Agents
Please address the comments from this code review:
## Overall Comments
- You’re ignoring the error from dbus.SessionBus()—make sure to handle or log it before using sessionBus to avoid nil-pointer issues.
- The signal loop started via sessionSigLoop.Start() is never stopped—add proper cleanup (e.g. sessionSigLoop.Stop()) after removing the handler to prevent resource leaks.
- Dropping the DDE_SESSION_PROCESS_COOKIE_ID check in StartPart2 may introduce unexpected states—verify that removing this validation is safe for all launch scenarios.
## Individual Comments
### Comment 1
<location> `bin/dde-session-daemon/daemon.go:255` </location>
<code_context>
- } else {
- err = loader.EnableModules(s.getAllDefaultEnabledModules(),
- s.getAllDefaultDisabledModules(), getEnableFlag(s.flags))
+ err = loader.EnableModules(s.part1EnabledModules, s.part1DisabledModules, 0)
+ if err != nil {
+ logger.Warning("Failed to enable part1 modules:", err)
</code_context>
<issue_to_address>
Consider extracting the DBus and signal loop logic from execDefaultAction into a dedicated helper to keep the function focused and readable.
```suggestion
The new DBus/signal‐loop logic in `execDefaultAction` is adding a lot of noise. You can pull it into a small helper (e.g. `sessionWatcher`) and keep `execDefaultAction` focused:
--- session_watcher.go ---
```go
package main
import (
"sync"
"github.com/godbus/dbus/v5"
dbusmgr "github.com/linuxdeepin/go-dbus-factory/system/org.freedesktop.dbus"
"github.com/linuxdeepin/go-lib/dbusutil"
)
type sessionWatcher struct {
once sync.Once
mgr *dbusmgr.DBus
loop *dbusutil.SignalLoop
}
func newSessionWatcher(conn *dbus.Conn) *sessionWatcher {
loop := dbusutil.NewSignalLoop(conn, 10)
loop.Start()
mgr := dbusmgr.NewDBus(conn)
mgr.InitSignalExt(loop, true)
return &sessionWatcher{mgr: mgr, loop: loop}
}
// Start invokes `onStarted` once when the name appears (or already exists).
func (w *sessionWatcher) Start(onStarted func()) error {
handler, err := w.mgr.ConnectNameOwnerChanged(func(name, _, newOwner string) {
if name == "org.deepin.dde.SessionManager1" && newOwner != "" {
w.once.Do(func() {
onStarted()
w.mgr.RemoveHandler(handler)
})
}
})
if err != nil {
return err
}
ok, err := w.mgr.NameHasOwner(0, "org.deepin.dde.SessionManager1")
if err != nil {
return err
}
if ok {
w.once.Do(func() {
onStarted()
w.mgr.RemoveHandler(handler)
})
}
return nil
}
```
Then simplify `execDefaultAction`:
```go
func (s *SessionDaemon) execDefaultAction() {
if err := loader.EnableModules(s.part1EnabledModules, s.part1DisabledModules, 0); err != nil {
logger.Warning("Failed to enable part1 modules:", err)
os.Exit(3)
}
conn, _ := dbus.SessionBus()
watcher := newSessionWatcher(conn)
if err := watcher.Start(s.StartPart2); err != nil {
logger.Warning("session watcher setup failed:", err)
os.Exit(3)
}
}
```
This keeps all functionality, reduces nesting in `execDefaultAction`, and moves DBus details into a focused helper.
</issue_to_address>Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
| } else { | ||
| err = loader.EnableModules(s.getAllDefaultEnabledModules(), | ||
| s.getAllDefaultDisabledModules(), getEnableFlag(s.flags)) | ||
| err = loader.EnableModules(s.part1EnabledModules, s.part1DisabledModules, 0) |
There was a problem hiding this comment.
issue (complexity): Consider extracting the DBus and signal loop logic from execDefaultAction into a dedicated helper to keep the function focused and readable.
Suggested change
| err = loader.EnableModules(s.part1EnabledModules, s.part1DisabledModules, 0) | |
| The new DBus/signal‐loop logic in `execDefaultAction` is adding a lot of noise. You can pull it into a small helper (e.g. `sessionWatcher`) and keep `execDefaultAction` focused: | |
| --- session_watcher.go --- | |
| ```go | |
| package main | |
| import ( | |
| "sync" | |
| "github.com/godbus/dbus/v5" | |
| dbusmgr "github.com/linuxdeepin/go-dbus-factory/system/org.freedesktop.dbus" | |
| "github.com/linuxdeepin/go-lib/dbusutil" | |
| ) | |
| type sessionWatcher struct { | |
| once sync.Once | |
| mgr *dbusmgr.DBus | |
| loop *dbusutil.SignalLoop | |
| } | |
| func newSessionWatcher(conn *dbus.Conn) *sessionWatcher { | |
| loop := dbusutil.NewSignalLoop(conn, 10) | |
| loop.Start() | |
| mgr := dbusmgr.NewDBus(conn) | |
| mgr.InitSignalExt(loop, true) | |
| return &sessionWatcher{mgr: mgr, loop: loop} | |
| } | |
| // Start invokes `onStarted` once when the name appears (or already exists). | |
| func (w *sessionWatcher) Start(onStarted func()) error { | |
| handler, err := w.mgr.ConnectNameOwnerChanged(func(name, _, newOwner string) { | |
| if name == "org.deepin.dde.SessionManager1" && newOwner != "" { | |
| w.once.Do(func() { | |
| onStarted() | |
| w.mgr.RemoveHandler(handler) | |
| }) | |
| } | |
| }) | |
| if err != nil { | |
| return err | |
| } | |
| ok, err := w.mgr.NameHasOwner(0, "org.deepin.dde.SessionManager1") | |
| if err != nil { | |
| return err | |
| } | |
| if ok { | |
| w.once.Do(func() { | |
| onStarted() | |
| w.mgr.RemoveHandler(handler) | |
| }) | |
| } | |
| return nil | |
| } |
Then simplify execDefaultAction:
func (s *SessionDaemon) execDefaultAction() {
if err := loader.EnableModules(s.part1EnabledModules, s.part1DisabledModules, 0); err != nil {
logger.Warning("Failed to enable part1 modules:", err)
os.Exit(3)
}
conn, _ := dbus.SessionBus()
watcher := newSessionWatcher(conn)
if err := watcher.Start(s.StartPart2); err != nil {
logger.Warning("session watcher setup failed:", err)
os.Exit(3)
}
}This keeps all functionality, reduces nesting in execDefaultAction, and moves DBus details into a focused helper.
Reviewer's GuideUnify the session daemon startup by removing the cookie-based gating, always enabling part1 modules with robust error handling, and implementing a DBus-based signal listener (with immediate owner check) to trigger part2 when the SessionManager is available. File-Level Changes
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TAG Bot New tag: 6.1.43 |
deepin pr auto review关键摘要:
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robertkill
approved these changes
Jul 15, 2025
|
[APPROVALNOTIFIER] This PR is NOT APPROVED This pull-request has been approved by: fly602, robertkill The full list of commands accepted by this bot can be found here. DetailsNeeds approval from an approver in each of these files:Approvers can indicate their approval by writing |
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dde-session-daemon part2 load after org.deepin.dde.SessionManager1 running
Log:
pms: BUG-323803
Summary by Sourcery
Defer part2 module initialization until the DDE SessionManager1 D-Bus service is available, remove the outdated cookie check, and add robust error handling for part1 module loading.
Bug Fixes:
Enhancements: