63 lines
1.8 KiB
Go
63 lines
1.8 KiB
Go
package core
|
|
|
|
import (
|
|
"fmt"
|
|
"net/netip"
|
|
"strings"
|
|
"time"
|
|
)
|
|
|
|
// Network is what a listener on, or a dialer to, host uses: tcp4 for an IPv4
|
|
// literal or "" (the IPv4 wildcard, as the default 0.0.0.0), tcp6 for an IPv6
|
|
// literal, which Go binds IPv6-only, and tcp for a hostname, which resolves.
|
|
func Network(host string) (string, error) {
|
|
addr, err := netip.ParseAddr(host)
|
|
switch {
|
|
case host == "" || err == nil && addr.Is4():
|
|
return "tcp4", nil
|
|
case err == nil && addr.Is4In6():
|
|
// tcp6 refuses it at bind or dial, long after the config loaded
|
|
return "", fmt.Errorf("%q is an IPv4-mapped address; write it as IPv4", host)
|
|
case err == nil:
|
|
return "tcp6", nil
|
|
case strings.ContainsAny(host, "[]:"):
|
|
return "", fmt.Errorf("%q is neither an address nor a hostname (write an IPv6 address without brackets or port)", host)
|
|
}
|
|
return "tcp", nil
|
|
}
|
|
|
|
const (
|
|
MaxLogEntryBytes = 1024 * 1024
|
|
|
|
// A tapped entry's message, fields and payload are cut to this, and its
|
|
// level, source and node to TapNameBytes, so a viewer's scrollback holds
|
|
// no source's whole line
|
|
TapEntryBytes = 16 * 1024
|
|
TapNameBytes = 256
|
|
|
|
FileWatcherPollInterval = 100 * time.Millisecond
|
|
|
|
SessionDefaultMaxIdleTime = 30 * time.Minute
|
|
|
|
SessionCleanupInterval = 5 * time.Minute
|
|
|
|
// Idle keepalive for a served stream. Well under SessionDefaultMaxIdleTime,
|
|
// so a quiet stream refreshes its session long before the sweep expires it.
|
|
StreamKeepaliveInterval = 15 * time.Second
|
|
|
|
ServiceStatsUpdateInterval = 1 * time.Second
|
|
|
|
// Bounds the flush of a network sink's queues at Stop
|
|
SinkFlushTimeout = 2 * time.Second
|
|
|
|
ConfigReloadTimeout = 30 * time.Second
|
|
|
|
LoggerShutdownTimeout = 2 * time.Second
|
|
|
|
ReloadWatchPollInterval = time.Second
|
|
|
|
ReloadWatchDebounce = 500 * time.Millisecond
|
|
|
|
ReloadWatchTimeout = 30 * time.Second
|
|
)
|