diff options
Diffstat (limited to 'pkg/sentry/kernel/sessions.go')
| -rw-r--r-- | pkg/sentry/kernel/sessions.go | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/pkg/sentry/kernel/sessions.go b/pkg/sentry/kernel/sessions.go index 81fcd8258..e5f297478 100644 --- a/pkg/sentry/kernel/sessions.go +++ b/pkg/sentry/kernel/sessions.go @@ -47,6 +47,11 @@ type Session struct { // The id is immutable. id SessionID + // foreground is the foreground process group. + // + // This is protected by TaskSet.mu. + foreground *ProcessGroup + // ProcessGroups is a list of process groups in this Session. This is // protected by TaskSet.mu. processGroups processGroupList @@ -260,12 +265,14 @@ func (pg *ProcessGroup) SendSignal(info *arch.SignalInfo) error { func (tg *ThreadGroup) CreateSession() error { tg.pidns.owner.mu.Lock() defer tg.pidns.owner.mu.Unlock() + tg.signalHandlers.mu.Lock() + defer tg.signalHandlers.mu.Unlock() return tg.createSession() } // createSession creates a new session for a threadgroup. // -// Precondition: callers must hold TaskSet.mu for writing. +// Precondition: callers must hold TaskSet.mu and the signal mutex for writing. func (tg *ThreadGroup) createSession() error { // Get the ID for this thread in the current namespace. id := tg.pidns.tgids[tg] @@ -346,6 +353,9 @@ func (tg *ThreadGroup) createSession() error { ns.processGroups[ProcessGroupID(local)] = pg } + // Disconnect from the controlling terminal. + tg.tty = nil + return nil } |