gosora/common/counters/forums.go
Azareal 0879f56893 Added per-forum analytics.
Added one week as a time range option.

Moved routeForum to routes.ViewForum
Renamed form_vars to formVars.
Moved the analytics chart JS into it's own file.
Changed the header text on the requests chart from Views to Requests.
Added simple hooks to global.js
Moved some of the in funcname prints to debug mode.
De-duplicated some of the back-end analytics logic.
2018-02-22 02:27:17 +00:00

119 lines
3.2 KiB
Go

package counters
import (
"database/sql"
"sync"
".."
"../../query_gen/lib"
)
var ForumViewCounter *DefaultForumViewCounter
// TODO: Unload forum counters without any views over the past 15 minutes, if the admin has configured the forumstore with a cap and it's been hit?
// Forums can be reloaded from the database at any time, so we want to keep the counters separate from them
type DefaultForumViewCounter struct {
oddMap map[int]*RWMutexCounterBucket // map[fid]struct{counter,sync.RWMutex}
evenMap map[int]*RWMutexCounterBucket
oddLock sync.RWMutex
evenLock sync.RWMutex
insert *sql.Stmt
}
func NewDefaultForumViewCounter() (*DefaultForumViewCounter, error) {
acc := qgen.Builder.Accumulator()
counter := &DefaultForumViewCounter{
oddMap: make(map[int]*RWMutexCounterBucket),
evenMap: make(map[int]*RWMutexCounterBucket),
insert: acc.Insert("viewchunks_forums").Columns("count, createdAt, forum").Fields("?,UTC_TIMESTAMP(),?").Prepare(),
}
common.AddScheduledFifteenMinuteTask(counter.Tick) // There could be a lot of routes, so we don't want to be running this every second
//common.AddScheduledSecondTask(counter.Tick)
common.AddShutdownTask(counter.Tick)
return counter, acc.FirstError()
}
func (counter *DefaultForumViewCounter) Tick() error {
counter.oddLock.RLock()
oddMap := counter.oddMap
counter.oddLock.RUnlock()
for forumID, forum := range oddMap {
var count int
forum.RLock()
count = forum.counter
forum.RUnlock()
// TODO: Only delete the bucket when it's zero to avoid hitting popular forums?
counter.oddLock.Lock()
delete(counter.oddMap, forumID)
counter.oddLock.Unlock()
err := counter.insertChunk(count, forumID)
if err != nil {
return err
}
}
counter.evenLock.RLock()
evenMap := counter.evenMap
counter.evenLock.RUnlock()
for forumID, forum := range evenMap {
var count int
forum.RLock()
count = forum.counter
forum.RUnlock()
// TODO: Only delete the bucket when it's zero to avoid hitting popular forums?
counter.evenLock.Lock()
delete(counter.evenMap, forumID)
counter.evenLock.Unlock()
err := counter.insertChunk(count, forumID)
if err != nil {
return err
}
}
return nil
}
func (counter *DefaultForumViewCounter) insertChunk(count int, forum int) error {
if count == 0 {
return nil
}
common.DebugLogf("Inserting a viewchunk with a count of %d for forum %d", count, forum)
_, err := counter.insert.Exec(count, forum)
return err
}
func (counter *DefaultForumViewCounter) Bump(forumID int) {
// Is the ID even?
if forumID%2 == 0 {
counter.evenLock.RLock()
forum, ok := counter.evenMap[forumID]
counter.evenLock.RUnlock()
if ok {
forum.Lock()
forum.counter++
forum.Unlock()
} else {
counter.evenLock.Lock()
counter.evenMap[forumID] = &RWMutexCounterBucket{counter: 1}
counter.evenLock.Unlock()
}
return
}
counter.oddLock.RLock()
forum, ok := counter.oddMap[forumID]
counter.oddLock.RUnlock()
if ok {
forum.Lock()
forum.counter++
forum.Unlock()
} else {
counter.oddLock.Lock()
counter.oddMap[forumID] = &RWMutexCounterBucket{counter: 1}
counter.oddLock.Unlock()
}
}
// TODO: Add a forum counter backed by two maps which grow as forums are created but never shrinks