Strip added commentary from xray_xhttp.go and tuning

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

xray_native_tuning.go

@@ -6,40 +6,21 @@ import (
 	"time"
 )
 
-// XrayNativeTuning holds the few operator-facing knobs for the in-process native
-// Xray. Transport-shaping parameters (HTTP/2 flow control, the XHTTP reorder
-// buffer, mux/UDP socket buffers) are intentionally NOT exposed: they are pinned
-// to xray-core / Go defaults so they cannot be misconfigured into breakage. Only
-// safe operational controls remain here: CPU parallelism, a global mux-session
-// DoS cap, and a packet-level trace toggle for debugging.
 type XrayNativeTuning struct {
-	// RuntimeGOMAXPROCS controls Go CPU parallelism. 0 or negative = all cores.
-	RuntimeGOMAXPROCS int `json:"runtime_gomaxprocs,omitempty"`
-	// MuxGlobalSessions caps total concurrent mux child sessions across every
-	// client connection (a DoS guard for the multi-tenant panel). 0 = default.
-	MuxGlobalSessions int `json:"mux_global_sessions,omitempty"`
-	// TracePackets enables very verbose per-packet XHTTP/mux logging. Debug only.
-	TracePackets bool `json:"trace_packets,omitempty"`
+	RuntimeGOMAXPROCS int  `json:"runtime_gomaxprocs,omitempty"`
+	MuxGlobalSessions int  `json:"mux_global_sessions,omitempty"`
+	TracePackets      bool `json:"trace_packets,omitempty"`
 }
 
 const (
 	defaultNativeRuntimeGOMAXPROCS = 0
 	defaultNativeMuxGlobalSessions = 32768
 
-	// Fixed transport defaults, aligned with xray-core / Go's net/http2. These are
-	// deliberately not operator-tunable: wrong values silently break data flow.
-	fixedNativeMuxMaxSessions    = 128        // per-connection mux child-session guard
-	fixedNativeMuxUDPIdleMS      = 120000     // mux UDP backend idle cleanup (ms)
-	fixedNativeMuxUDPReadBuffer  = 256 * 1024 // mux UDP socket read buffer
-	fixedNativeMuxUDPWriteBuffer = 256 * 1024 // mux UDP socket write buffer
+	fixedNativeMuxMaxSessions    = 128
+	fixedNativeMuxUDPIdleMS      = 120000
+	fixedNativeMuxUDPReadBuffer  = 256 * 1024
+	fixedNativeMuxUDPWriteBuffer = 256 * 1024
 
-	// XHTTP: max tracked sessions (DoS guard) and the packet-up reorder buffer.
-	// The per-inbound scMaxBufferedPosts from the config still overrides this.
-	// xray-core's own default is 30 (its client sends POSTs near-in-order), but
-	// other clients (v2rayNG/nekobox/etc.) fan out many concurrent POSTs that can
-	// arrive well out of order; a small buffer then trips the reassembly-too-large
-	// teardown and stalls traffic. Keep a generous default so reordering is
-	// absorbed rather than fatal.
 	defaultNativeXHTTPMaxSessions   = 16384
 	defaultNativeXHTTPBufferedPosts = 512
 )
@@ -84,12 +65,10 @@ func applyNativeXrayTuning(t *XrayNativeTuning) XrayNativeTuning {
 	return out
 }
 
-// Operator-tunable values.
 func nativeRuntimeGOMAXPROCS() int     { return int(nativeTuneRuntimeGOMAXPROCS.Load()) }
 func nativeMuxGlobalSessionLimit() int { return int(nativeTuneMuxGlobalSessions.Load()) }
 func nativeTracePacketsEnabled() bool  { return nativeTuneTracePackets.Load() }
 
-// Fixed transport limits (see the const block for rationale).
 func nativeMuxMaxSessionLimit() int     { return fixedNativeMuxMaxSessions }
 func nativeMuxUDPReadBufferSize() int   { return fixedNativeMuxUDPReadBuffer }
 func nativeMuxUDPWriteBufferSize() int  { return fixedNativeMuxUDPWriteBuffer }