playerindices

Documentation

Overview

Package playerindices indexes player attributes in Redis for faster filtering of player pools.

Copyright 2018 Google LLC

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Index

• Variables
• func Create(ctx context.Context, rPool *redis.Pool, cfg config.View, ...) error
• func Delete(ctx context.Context, rPool *redis.Pool, cfg config.View, playerID string) error
• func DeleteMeta(ctx context.Context, rPool *redis.Pool, playerID string)
• func Retrieve(cfg config.View) (indices []string, err error)
• func RetrievePrevious(cfg config.View) []string
• func Touch(ctx context.Context, rPool *redis.Pool, playerID string) error

Variables

var (

	// OM Internal metadata indices
	MetaIndices = []string{
		"OM_METADATA.created",
		"OM_METADATA.accessed",
	}
)

Functions

func Create

func Create(ctx context.Context, rPool *redis.Pool, cfg config.View, player om_messages.Player) error

Create indices for given player attributes in Redis. TODO: make this quit and not index the player if the context is cancelled.

func Delete

func Delete(ctx context.Context, rPool *redis.Pool, cfg config.View, playerID string) error

Delete a player's indices without deleting their JSON object representation from state storage. Note: In Open Match, it is best practice to 'lazily' remove indices by running this as a goroutine. TODO: make this quit cleanly if the context is cancelled.

func DeleteMeta

func DeleteMeta(ctx context.Context, rPool *redis.Pool, playerID string)

DeleteMeta removes a player's internal Open Match metadata indices, and should only be used after deleting their JSON object representation from state storage. Note: In Open Match, it is best practice to 'lazily' remove indices by running this as a goroutine. TODO: make this quit cleanly if the context is cancelled.

func Retrieve

func Retrieve(cfg config.View) (indices []string, err error)

Retrieve pulls the player indices from configuration

func RetrievePrevious

func RetrievePrevious(cfg config.View) []string

RetrievePrevious attempts to handle an edge case when the user has removed an index from the list of player indices but players still exist who are indexed using the (now no longer used) index. The user should put the index they are no longer using into this config parameter so that deleting players with previous indexes doesn't result in a Redis memory leak. In a future version, Open Match should track previous indices itself and handle this for the user.

func Touch

func Touch(ctx context.Context, rPool *redis.Pool, playerID string) error

Touch is analogous to the Unix touch command. It updates the accessed time of the player in the OM_METADATA.accessed index to the current epoch timestamp.