Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 91 insertions, 0 deletions

diff --git a/src/rgw/rgw_worker.h b/src/rgw/rgw_worker.h
new file mode 100644
index 000000000..eb2e55243
--- /dev/null
+++ b/src/rgw/rgw_worker.h
@@ -0,0 +1,91 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab ft=cpp
+
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2019 Red Hat, Inc.
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation. See file COPYING.
+ *
+ */
+
+
+#pragma once
+
+#include <atomic>
+
+#include "common/Thread.h"
+#include "common/ceph_mutex.h"
+#include "include/common_fwd.h"
+
+class RGWRados;
+
+class RGWRadosThread {
+  class Worker : public Thread, public DoutPrefixProvider {
+    CephContext *cct;
+    RGWRadosThread *processor;
+    ceph::mutex lock = ceph::make_mutex("RGWRadosThread::Worker");
+    ceph::condition_variable cond;
+
+    void wait() {
+      std::unique_lock l{lock};
+      cond.wait(l);
+    };
+
+    void wait_interval(const ceph::real_clock::duration& wait_time) {
+      std::unique_lock l{lock};
+      cond.wait_for(l, wait_time);
+    }
+
+  public:
+    Worker(CephContext *_cct, RGWRadosThread *_p) : cct(_cct), processor(_p) {}
+    void *entry() override;
+    void signal() {
+      std::lock_guard l{lock};
+      cond.notify_all();
+    }
+
+  CephContext *get_cct() const { return cct; }
+  unsigned get_subsys() const { return ceph_subsys_rgw; }
+  std::ostream& gen_prefix(std::ostream& out) const { return out << "rgw rados thread: "; }
+
+  };
+
+  Worker *worker;
+
+protected:
+  CephContext *cct;
+  RGWRados *store;
+
+  std::atomic<bool> down_flag = { false };
+
+  std::string thread_name;
+
+  virtual uint64_t interval_msec() = 0;
+  virtual void stop_process() {}
+public:
+  RGWRadosThread(RGWRados *_store, const std::string& thread_name = "radosgw")
+    : worker(NULL), cct(_store->ctx()), store(_store), thread_name(thread_name) {}
+  virtual ~RGWRadosThread() {
+    stop();
+  }
+
+  virtual int init(const DoutPrefixProvider *dpp) { return 0; }
+  virtual int process(const DoutPrefixProvider *dpp) = 0;
+
+  bool going_down() { return down_flag; }
+
+  void start();
+  void stop();
+
+  void signal() {
+    if (worker) {
+      worker->signal();
+    }
+  }
+};
+