From 19fcec84d8d7d21e796c7624e521b60d28ee21ed Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 20:45:59 +0200
Subject: Adding upstream version 16.2.11+ds.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/cls/queue/cls_queue.cc | 145 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 src/cls/queue/cls_queue.cc

(limited to 'src/cls/queue/cls_queue.cc')

diff --git a/src/cls/queue/cls_queue.cc b/src/cls/queue/cls_queue.cc
new file mode 100644
index 000000000..cf4daaac8
--- /dev/null
+++ b/src/cls/queue/cls_queue.cc
@@ -0,0 +1,145 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "include/types.h"
+
+#include <errno.h>
+
+#include "objclass/objclass.h"
+#include "cls/queue/cls_queue_types.h"
+#include "cls/queue/cls_queue_ops.h"
+#include "cls/queue/cls_queue_const.h"
+#include "cls/queue/cls_queue_src.h"
+
+using ceph::bufferlist;
+using ceph::decode;
+using ceph::encode;
+
+CLS_VER(1,0)
+CLS_NAME(queue)
+
+static int cls_queue_init(cls_method_context_t hctx, bufferlist *in, bufferlist *out)
+{
+  auto in_iter = in->cbegin();
+  cls_queue_init_op op;
+  try {
+    decode(op, in_iter);
+  } catch (ceph::buffer::error& err) {
+    CLS_LOG(1, "ERROR: cls_queue_init_op(): failed to decode entry\n");
+    return -EINVAL;
+  }
+
+  return queue_init(hctx, op);
+}
+
+static int cls_queue_get_capacity(cls_method_context_t hctx, bufferlist *in, bufferlist *out)
+{
+  cls_queue_get_capacity_ret op_ret;
+  auto ret = queue_get_capacity(hctx, op_ret);
+  if (ret < 0) {
+    return ret;
+  }
+
+  encode(op_ret, *out);
+  return 0;
+}
+
+static int cls_queue_enqueue(cls_method_context_t hctx, bufferlist *in, bufferlist *out)
+{
+  auto iter = in->cbegin();
+  cls_queue_enqueue_op op;
+  try {
+    decode(op, iter);
+  } catch (ceph::buffer::error& err) {
+    CLS_LOG(1, "ERROR: cls_queue_enqueue: failed to decode input data \n");
+    return -EINVAL;
+  }
+
+  cls_queue_head head;
+  auto ret = queue_read_head(hctx, head);
+  if (ret < 0) {
+    return ret;
+  }
+
+  ret = queue_enqueue(hctx, op, head);
+  if (ret < 0) {
+    return ret;
+  }
+
+  //Write back head
+  return queue_write_head(hctx, head);
+}
+
+static int cls_queue_list_entries(cls_method_context_t hctx, bufferlist *in, bufferlist *out)
+{
+  auto in_iter = in->cbegin();
+  cls_queue_list_op op;
+  try {
+    decode(op, in_iter);
+  } catch (ceph::buffer::error& err) {
+    CLS_LOG(5, "ERROR: cls_queue_list_entries(): failed to decode input data\n");
+    return -EINVAL;
+  }
+
+  cls_queue_head head;
+  auto ret = queue_read_head(hctx, head);
+  if (ret < 0) {
+    return ret;
+  }
+
+  cls_queue_list_ret op_ret;
+  ret = queue_list_entries(hctx, op, op_ret, head);
+  if (ret < 0) {
+    return ret;
+  }
+
+  encode(op_ret, *out);
+  return 0;
+}
+
+static int cls_queue_remove_entries(cls_method_context_t hctx, bufferlist *in, bufferlist *out)
+{
+  auto in_iter = in->cbegin();
+  cls_queue_remove_op op;
+  try {
+    decode(op, in_iter);
+  } catch (ceph::buffer::error& err) {
+    CLS_LOG(5, "ERROR: cls_queue_remove_entries: failed to decode input data\n");
+    return -EINVAL;
+  }
+
+  cls_queue_head head;
+  auto ret = queue_read_head(hctx, head);
+  if (ret < 0) {
+    return ret;
+  }
+  ret = queue_remove_entries(hctx, op, head);
+  if (ret < 0) {
+    return ret;
+  }
+  return queue_write_head(hctx, head);
+}
+
+CLS_INIT(queue)
+{
+  CLS_LOG(1, "Loaded queue class!");
+
+  cls_handle_t h_class;
+  cls_method_handle_t h_queue_init;
+  cls_method_handle_t h_queue_get_capacity;
+  cls_method_handle_t h_queue_enqueue;
+  cls_method_handle_t h_queue_list_entries;
+  cls_method_handle_t h_queue_remove_entries;
+ 
+  cls_register(QUEUE_CLASS, &h_class);
+
+  /* queue*/
+  cls_register_cxx_method(h_class, QUEUE_INIT, CLS_METHOD_RD | CLS_METHOD_WR, cls_queue_init, &h_queue_init);
+  cls_register_cxx_method(h_class, QUEUE_GET_CAPACITY, CLS_METHOD_RD, cls_queue_get_capacity, &h_queue_get_capacity);
+  cls_register_cxx_method(h_class, QUEUE_ENQUEUE, CLS_METHOD_RD | CLS_METHOD_WR, cls_queue_enqueue, &h_queue_enqueue);
+  cls_register_cxx_method(h_class, QUEUE_LIST_ENTRIES, CLS_METHOD_RD, cls_queue_list_entries, &h_queue_list_entries);
+  cls_register_cxx_method(h_class, QUEUE_REMOVE_ENTRIES, CLS_METHOD_RD | CLS_METHOD_WR, cls_queue_remove_entries, &h_queue_remove_entries);
+
+  return;
+}
+
-- 
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