init

system/node_modules/ethers/lib.commonjs/providers/subscriber-connection.js

@@ -0,0 +1,56 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BlockConnectionSubscriber = void 0;
+const index_js_1 = require("../utils/index.js");
+/**
+ *  @TODO
+ *
+ *  @_docloc: api/providers/abstract-provider
+ */
+class BlockConnectionSubscriber {
+    #provider;
+    #blockNumber;
+    #running;
+    #filterId;
+    constructor(provider) {
+        this.#provider = provider;
+        this.#blockNumber = -2;
+        this.#running = false;
+        this.#filterId = null;
+    }
+    start() {
+        if (this.#running) {
+            return;
+        }
+        this.#running = true;
+        this.#filterId = this.#provider._subscribe(["newHeads"], (result) => {
+            const blockNumber = (0, index_js_1.getNumber)(result.number);
+            const initial = (this.#blockNumber === -2) ? blockNumber : (this.#blockNumber + 1);
+            for (let b = initial; b <= blockNumber; b++) {
+                this.#provider.emit("block", b);
+            }
+            this.#blockNumber = blockNumber;
+        });
+    }
+    stop() {
+        if (!this.#running) {
+            return;
+        }
+        this.#running = false;
+        if (this.#filterId != null) {
+            this.#provider._unsubscribe(this.#filterId);
+            this.#filterId = null;
+        }
+    }
+    pause(dropWhilePaused) {
+        if (dropWhilePaused) {
+            this.#blockNumber = -2;
+        }
+        this.stop();
+    }
+    resume() {
+        this.start();
+    }
+}
+exports.BlockConnectionSubscriber = BlockConnectionSubscriber;
+//# sourceMappingURL=subscriber-connection.js.map