0c34b6e781
- Remove CAS, as it no longer works for us - Remove other checks - Implement 15 minute greet timeout check - Fix chat logos - Ditch thirdparty logger, use stdlib log facility wrapper for logging
60 lines
2.0 KiB
Go
60 lines
2.0 KiB
Go
package elog
|
|
|
|
import (
|
|
"errors"
|
|
"sync"
|
|
"time"
|
|
)
|
|
|
|
const (
|
|
// chatLockIdleTimeout is how long a chat's lock entry may sit unused before it
|
|
// is evicted. Without it the registry grows by one entry per chat ever seen.
|
|
chatLockIdleTimeout = time.Hour
|
|
|
|
// stampLayout is the per-line timestamp. GMT+0 with millisecond precision.
|
|
stampLayout = "15:04:05.000"
|
|
|
|
// logFilePerm is the mode for a newly created chat log file.
|
|
logFilePerm = 0o644
|
|
|
|
// logDirPerm is the mode for the chat, year and month directories.
|
|
//
|
|
// It is deliberately not logFilePerm. A directory needs the execute bit to
|
|
// be traversable, and 0o644 has none, so creating the tree with the file mode
|
|
// makes every subsequent open inside it fail with EACCES rather than ENOENT
|
|
// — a failure reportFailure would swallow, leaving chat logging to silently
|
|
// produce no files at all.
|
|
//
|
|
// The two live in one block on purpose: they are a pair that must never be
|
|
// confused with each other, and keeping them adjacent is what makes confusing
|
|
// them hard. They are here, in globals.go, because that is where every
|
|
// package-level const belongs — the pair argument was weighed against rule 2
|
|
// and rule 2 won, once, on the record.
|
|
logDirPerm = 0o755
|
|
)
|
|
|
|
var (
|
|
// errNotDirectory marks a chat_logs path that exists but is a regular file.
|
|
errNotDirectory = errors.New("chat_logs path is not a directory")
|
|
|
|
// root is the configured chat-logs directory. Empty means chat logging is
|
|
// disabled and every Log* call is a no-op.
|
|
root string
|
|
|
|
// failing records that a write error has been reported and not yet cleared,
|
|
// so a persistent failure (a full disk) logs once instead of once per event.
|
|
failing bool
|
|
|
|
// stateMu guards root and failing.
|
|
stateMu sync.RWMutex
|
|
|
|
// registryMu guards locks. It is never held while a chat lock is acquired,
|
|
// or the whole logger would serialise.
|
|
registryMu sync.Mutex
|
|
|
|
// locks is the per-chat lock registry.
|
|
locks = map[int64]*chatLock{}
|
|
)
|
|
|
|
/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */
|