cache

Documentation

Index

• type EDUCache
  • func New() *EDUCache
  • func (t *EDUCache) AddTypingUser(userID, roomID string, expire *time.Time) int64
  • func (t *EDUCache) GetLatestSyncPosition() int64
  • func (t *EDUCache) GetTypingUsers(roomID string) []string
  • func (t *EDUCache) GetTypingUsersIfUpdatedAfter(roomID string, position int64) (users []string, updated bool)
  • func (t *EDUCache) RemoveUser(userID, roomID string) int64
  • func (t *EDUCache) SetTimeoutCallback(fn TimeoutCallbackFn)
• type TimeoutCallbackFn

Types

type EDUCache

type EDUCache struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

EDUCache maintains a list of users typing in each room.

func New

func New() *EDUCache

New returns a new EDUCache initialised for use.

func (*EDUCache) AddTypingUser

func (t *EDUCache) AddTypingUser(
	userID, roomID string, expire *time.Time,
) int64

AddTypingUser sets an user as typing in a room. expire is the time when the user typing should time out. if expire is nil, defaultTypingTimeout is assumed. Returns the latest sync position for typing after update.

func (*EDUCache) GetLatestSyncPosition

func (t *EDUCache) GetLatestSyncPosition() int64

func (*EDUCache) GetTypingUsers

func (t *EDUCache) GetTypingUsers(roomID string) []string

GetTypingUsers returns the list of users typing in a room.

func (*EDUCache) GetTypingUsersIfUpdatedAfter

func (t *EDUCache) GetTypingUsersIfUpdatedAfter(
	roomID string, position int64,
) (users []string, updated bool)

GetTypingUsersIfUpdatedAfter returns all users typing in this room with updated == true if the typing sync position of the room is after the given position. Otherwise, returns an empty slice with updated == false.

func (*EDUCache) RemoveUser

func (t *EDUCache) RemoveUser(userID, roomID string) int64

RemoveUser with mutex lock & stop the timer. Returns the latest sync position for typing after update.

func (*EDUCache) SetTimeoutCallback

func (t *EDUCache) SetTimeoutCallback(fn TimeoutCallbackFn)

SetTimeoutCallback sets a callback function that is called right after a user is removed from the typing user list due to timeout.

type TimeoutCallbackFn

type TimeoutCallbackFn func(userID, roomID string, latestSyncPosition int64)

TimeoutCallbackFn is a function called right after the removal of a user from the typing user list due to timeout. latestSyncPosition is the typing sync position after the removal.