RequestPool: initial implementation with TaskPool

source/net/request_pool.d

@@ -0,0 +1,69 @@
+module net.request_pool;
+
+import core.thread;
+import core.sync.semaphore;
+
+import std.container;
+import std.parallelism;
+
+import requests;
+import slf4d;
+
+struct PRequest {
+  string url;
+  string method = "GET";
+  QueryParam[] params;
+
+  string body = "";
+  string contentType = "text/plain";
+}
+
+class RequestPool {
+  private int m_totalWorkers;
+  private TaskPool m_taskPool;
+  private Logger _l;
+
+  this(int totalWorkers = 4) {
+    this.m_totalWorkers = totalWorkers;
+    this._l = getLogger();
+  }
+
+  void startBackground() {
+    _l.debugF!"Starting RequestPool with %d workers"(this.m_totalWorkers);
+    this.m_taskPool = new TaskPool(this.m_totalWorkers);
+  }
+
+  void request(PRequest request) {
+    auto t = task(&this.m_run, request);
+    this.m_taskPool.put(t);
+  }
+
+  void stop() {
+    this.m_taskPool.finish(true);
+  }
+
+  private void m_run(PRequest request) {
+    Request rq = Request();
+
+    _l.debugF!"Requesting [%s] %s"(request.method, request.url);
+
+    Response rs;
+
+    switch (request.method) {
+    case "GET":
+      rs = rq.get(request.url, request.params);
+      break;
+
+    case "POST":
+      rs = rq.post(request.url, request.body, request.contentType);
+      break;
+
+    default:
+      errorF!"Unknown request method: %s"(request.method);
+      return;
+      break;
+    }
+
+    _l.debugF!"Request %s result code: %d"(request.url, rs.code);
+  }
+}