Initial release — gstack v0.0.1

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

browse/src/buffers.ts

@@ -0,0 +1,44 @@
+/**
+ * Shared buffers and types — extracted to break circular dependency
+ * between server.ts and browser-manager.ts
+ */
+
+export interface LogEntry {
+  timestamp: number;
+  level: string;
+  text: string;
+}
+
+export interface NetworkEntry {
+  timestamp: number;
+  method: string;
+  url: string;
+  status?: number;
+  duration?: number;
+  size?: number;
+}
+
+export const consoleBuffer: LogEntry[] = [];
+export const networkBuffer: NetworkEntry[] = [];
+const HIGH_WATER_MARK = 50_000;
+
+// Total entries ever added — used by server.ts flush logic as a cursor
+// that keeps advancing even after the ring buffer wraps.
+export let consoleTotalAdded = 0;
+export let networkTotalAdded = 0;
+
+export function addConsoleEntry(entry: LogEntry) {
+  if (consoleBuffer.length >= HIGH_WATER_MARK) {
+    consoleBuffer.shift();
+  }
+  consoleBuffer.push(entry);
+  consoleTotalAdded++;
+}
+
+export function addNetworkEntry(entry: NetworkEntry) {
+  if (networkBuffer.length >= HIGH_WATER_MARK) {
+    networkBuffer.shift();
+  }
+  networkBuffer.push(entry);
+  networkTotalAdded++;
+}