Work on pm restructure

profile/active.go

@@ -0,0 +1,66 @@
+package profile
+
+import "sync"
+
+var (
+	activeProfileSets     = make(map[string]*Set)
+	activeProfileSetsLock sync.RWMutex
+)
+
+func activateProfileSet(set *Set) {
+	set.Lock()
+	defer set.Unlock()
+	activeProfileSetsLock.Lock()
+	defer activeProfileSetsLock.Unlock()
+	activeProfileSets[set.profiles[0].ID] = set
+}
+
+// DeactivateProfileSet marks a profile set as not active.
+func DeactivateProfileSet(set *Set) {
+	set.Lock()
+	defer set.Unlock()
+	activeProfileSetsLock.Lock()
+	defer activeProfileSetsLock.Unlock()
+	delete(activeProfileSets, set.profiles[0].ID)
+}
+
+func updateActiveUserProfile(profile *Profile) {
+	activeProfileSetsLock.RLock()
+	defer activeProfileSetsLock.RUnlock()
+	activeSet, ok := activeProfileSets[profile.ID]
+	if ok {
+		activeSet.Lock()
+		defer activeSet.Unlock()
+		activeSet.profiles[0] = profile
+	}
+}
+
+func updateActiveGlobalProfile(profile *Profile) {
+	updateActiveProfile(1, profile)
+}
+
+func updateActiveStampProfile(profile *Profile) {
+	updateActiveProfile(2, profile)
+}
+
+func updateActiveFallbackProfile(profile *Profile) {
+	updateActiveProfile(3, profile)
+}
+
+func updateActiveProfile(setID int, profile *Profile) {
+	activeProfileSetsLock.RLock()
+	defer activeProfileSetsLock.RUnlock()
+
+	for _, activeSet := range activeProfileSets {
+		activeSet.Lock()
+		activeProfile := activeSet.profiles[setID]
+		if activeProfile != nil {
+			activeProfile.Lock()
+			if activeProfile.ID == profile.ID {
+				activeSet.profiles[setID] = profile
+			}
+			activeProfile.Unlock()
+		}
+		activeSet.Unlock()
+	}
+}