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Diffstat (limited to 'pkg/sentry/kernel/task_signals.go')
-rw-r--r--pkg/sentry/kernel/task_signals.go12
1 files changed, 7 insertions, 5 deletions
diff --git a/pkg/sentry/kernel/task_signals.go b/pkg/sentry/kernel/task_signals.go
index d6a2040bc..feaa38596 100644
--- a/pkg/sentry/kernel/task_signals.go
+++ b/pkg/sentry/kernel/task_signals.go
@@ -319,8 +319,9 @@ func (t *Task) SignalReturn(rt bool) (*SyscallControl, error) {
// Sigtimedwait implements the semantics of sigtimedwait(2).
//
-// Preconditions: The caller must be running on the task goroutine. t.exitState
-// < TaskExitZombie.
+// Preconditions:
+// * The caller must be running on the task goroutine.
+// * t.exitState < TaskExitZombie.
func (t *Task) Sigtimedwait(set linux.SignalSet, timeout time.Duration) (*arch.SignalInfo, error) {
// set is the set of signals we're interested in; invert it to get the set
// of signals to block.
@@ -584,8 +585,9 @@ func (t *Task) SignalMask() linux.SignalSet {
// SetSignalMask sets t's signal mask.
//
-// Preconditions: SetSignalMask can only be called by the task goroutine.
-// t.exitState < TaskExitZombie.
+// Preconditions:
+// * The caller must be running on the task goroutine.
+// * t.exitState < TaskExitZombie.
func (t *Task) SetSignalMask(mask linux.SignalSet) {
// By precondition, t prevents t.tg from completing an execve and mutating
// t.tg.signalHandlers, so we can skip the TaskSet mutex.
@@ -631,7 +633,7 @@ func (t *Task) setSignalMaskLocked(mask linux.SignalSet) {
// SetSavedSignalMask sets the saved signal mask (see Task.savedSignalMask's
// comment).
//
-// Preconditions: SetSavedSignalMask can only be called by the task goroutine.
+// Preconditions: The caller must be running on the task goroutine.
func (t *Task) SetSavedSignalMask(mask linux.SignalSet) {
t.savedSignalMask = mask
t.haveSavedSignalMask = true