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Fix tests; remove memory implementation entirely

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This commit is contained in:
Philipp Heckel 2022-02-27 14:05:13 -05:00
parent 7d93b0596b
commit 6dc4e441e4
2 changed files with 3 additions and 191 deletions
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189
server/cache_mem.go
View file

@ -1,189 +0,0 @@
package server
import (
"sort"
"sync"
"time"
)
type memCache struct {
messages map[string][]*message
scheduled map[string]*message // Message ID -> message
nop bool
mu sync.Mutex
}
var _ cache = (*memCache)(nil)
func (c *memCache) AddMessage(m *message) error {
c.mu.Lock()
defer c.mu.Unlock()
if c.nop {
return nil
}
if m.Event != messageEvent {
return errUnexpectedMessageType
}
if _, ok := c.messages[m.Topic]; !ok {
c.messages[m.Topic] = make([]*message, 0)
}
delayed := m.Time > time.Now().Unix()
if delayed {
c.scheduled[m.ID] = m
}
c.messages[m.Topic] = append(c.messages[m.Topic], m)
return nil
}
func (c *memCache) Messages(topic string, since sinceMarker, scheduled bool) ([]*message, error) {
c.mu.Lock()
defer c.mu.Unlock()
if _, ok := c.messages[topic]; !ok || since.IsNone() {
return make([]*message, 0), nil
}
var messages []*message
if since.IsID() {
messages = c.messagesSinceID(topic, since, scheduled)
} else {
messages = c.messagesSinceTime(topic, since, scheduled)
}
sort.Slice(messages, func(i, j int) bool {
return messages[i].Time < messages[j].Time
})
return messages, nil
}
func (c *memCache) messagesSinceTime(topic string, since sinceMarker, scheduled bool) []*message {
messages := make([]*message, 0)
for _, m := range c.messages[topic] {
_, messageScheduled := c.scheduled[m.ID]
include := m.Time >= since.Time().Unix() && (!messageScheduled || scheduled)
if include {
messages = append(messages, m)
}
}
return messages
}
func (c *memCache) messagesSinceID(topic string, since sinceMarker, scheduled bool) []*message {
messages := make([]*message, 0)
foundID := false
for _, m := range c.messages[topic] {
_, messageScheduled := c.scheduled[m.ID]
if foundID {
if !messageScheduled || scheduled {
messages = append(messages, m)
}
} else if m.ID == since.ID() {
foundID = true
}
}
// Return all messages if no message was found
if !foundID {
for _, m := range c.messages[topic] {
_, messageScheduled := c.scheduled[m.ID]
if !messageScheduled || scheduled {
messages = append(messages, m)
}
}
}
return messages
}
func (c *memCache) maybeAppendMessage(messages []*message, m *message, since sinceMarker, scheduled bool) {
_, messageScheduled := c.scheduled[m.ID]
include := m.Time >= since.Time().Unix() && (!messageScheduled || scheduled)
if include {
messages = append(messages, m)
}
}
func (c *memCache) MessagesDue() ([]*message, error) {
c.mu.Lock()
defer c.mu.Unlock()
messages := make([]*message, 0)
for _, m := range c.scheduled {
due := time.Now().Unix() >= m.Time
if due {
messages = append(messages, m)
}
}
sort.Slice(messages, func(i, j int) bool {
return messages[i].Time < messages[j].Time
})
return messages, nil
}
func (c *memCache) MarkPublished(m *message) error {
c.mu.Lock()
delete(c.scheduled, m.ID)
c.mu.Unlock()
return nil
}
func (c *memCache) MessageCount(topic string) (int, error) {
c.mu.Lock()
defer c.mu.Unlock()
if _, ok := c.messages[topic]; !ok {
return 0, nil
}
return len(c.messages[topic]), nil
}
func (c *memCache) Topics() (map[string]*topic, error) {
c.mu.Lock()
defer c.mu.Unlock()
topics := make(map[string]*topic)
for topic := range c.messages {
topics[topic] = newTopic(topic)
}
return topics, nil
}
func (c *memCache) Prune(olderThan time.Time) error {
c.mu.Lock()
defer c.mu.Unlock()
for topic := range c.messages {
c.pruneTopic(topic, olderThan)
}
return nil
}
func (c *memCache) AttachmentsSize(owner string) (int64, error) {
c.mu.Lock()
defer c.mu.Unlock()
var size int64
for topic := range c.messages {
for _, m := range c.messages[topic] {
counted := m.Attachment != nil && m.Attachment.Owner == owner && m.Attachment.Expires > time.Now().Unix()
if counted {
size += m.Attachment.Size
}
}
}
return size, nil
}
func (c *memCache) AttachmentsExpired() ([]string, error) {
c.mu.Lock()
defer c.mu.Unlock()
ids := make([]string, 0)
for topic := range c.messages {
for _, m := range c.messages[topic] {
if m.Attachment != nil && m.Attachment.Expires > 0 && m.Attachment.Expires < time.Now().Unix() {
ids = append(ids, m.ID)
}
}
}
return ids, nil
}
func (c *memCache) pruneTopic(topic string, olderThan time.Time) {
messages := make([]*message, 0)
for _, m := range c.messages[topic] {
if m.Time >= olderThan.Unix() {
messages = append(messages, m)
}
}
c.messages[topic] = messages
}

5
server/cache_sqlite.go
View file

@ -65,7 +65,7 @@ const (
selectMessagesSinceIDIncludeScheduledQuery = `
SELECT mid, time, topic, message, title, priority, tags, click, attachment_name, attachment_type, attachment_size, attachment_expires, attachment_url, attachment_owner, encoding
FROM messages
WHERE topic = ? AND id > ?
WHERE topic = ? AND (id > ? OR published = 0)
ORDER BY time, id
`
selectMessagesDueQuery = `
@ -196,7 +196,7 @@ func newNopCache() (*sqliteCache, error) {
return newSqliteCache(createMemoryFilename(), true)
}
// createMemoryFilename creates a unique filename to use for the SQLite backend.
// createMemoryFilename creates a unique memory filename to use for the SQLite backend.
// From mattn/go-sqlite3: "Each connection to ":memory:" opens a brand new in-memory
// sql database, so if the stdlib's sql engine happens to open another connection and
// you've only specified ":memory:", that connection will see a brand new database.
@ -283,6 +283,7 @@ func (c *sqliteCache) messagesSinceID(topic string, since sinceMarker, scheduled
if err := idrows.Scan(&rowID); err != nil {
return nil, err
}
idrows.Close()
var rows *sql.Rows
if scheduled {
rows, err = c.db.Query(selectMessagesSinceIDIncludeScheduledQuery, topic, rowID)