From e6918187568dbd01842d8d1d2c808ce16a894239 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 21 Apr 2024 13:54:28 +0200
Subject: Adding upstream version 18.2.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/rgw/driver/rados/rgw_datalog_notify.cc | 76 ++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 src/rgw/driver/rados/rgw_datalog_notify.cc

(limited to 'src/rgw/driver/rados/rgw_datalog_notify.cc')

diff --git a/src/rgw/driver/rados/rgw_datalog_notify.cc b/src/rgw/driver/rados/rgw_datalog_notify.cc
new file mode 100644
index 000000000..12cdc532f
--- /dev/null
+++ b/src/rgw/driver/rados/rgw_datalog_notify.cc
@@ -0,0 +1,76 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab ft=cpp
+
+#include "rgw_datalog_notify.h"
+#include "rgw_datalog.h"
+
+// custom encoding for v1 notify API
+struct EntryEncoderV1 {
+  const rgw_data_notify_entry& entry;
+};
+struct SetEncoderV1 {
+  const bc::flat_set<rgw_data_notify_entry>& entries;
+};
+
+// encode rgw_data_notify_entry as string
+void encode_json(const char *name, const EntryEncoderV1& e, Formatter *f)
+{
+  f->dump_string(name, e.entry.key); // encode the key only
+}
+// encode set<rgw_data_notify_entry> as set<string>
+void encode_json(const char *name, const SetEncoderV1& e, Formatter *f)
+{
+  f->open_array_section(name);
+  for (auto& entry : e.entries) {
+    encode_json("obj", EntryEncoderV1{entry}, f);
+  }
+  f->close_section();
+}
+// encode map<int, set<rgw_data_notify_entry>> as map<int, set<string>>
+void encode_json(const char *name, const rgw_data_notify_v1_encoder& e, Formatter *f)
+{
+  f->open_array_section(name);
+  for (auto& [key, val] : e.shards) {
+    f->open_object_section("entry");
+    encode_json("key", key, f);
+    encode_json("val", SetEncoderV1{val}, f);
+    f->close_section();
+  }
+  f->close_section();
+}
+
+struct EntryDecoderV1 {
+  rgw_data_notify_entry& entry;
+};
+struct SetDecoderV1 {
+  bc::flat_set<rgw_data_notify_entry>& entries;
+};
+
+// decode string into rgw_data_notify_entry
+void decode_json_obj(EntryDecoderV1& d, JSONObj *obj)
+{
+  decode_json_obj(d.entry.key, obj);
+  d.entry.gen = 0;
+}
+// decode set<string> into set<rgw_data_notify_entry>
+void decode_json_obj(SetDecoderV1& d, JSONObj *obj)
+{
+  for (JSONObjIter o = obj->find_first(); !o.end(); ++o) {
+    rgw_data_notify_entry val;
+    auto decoder = EntryDecoderV1{val};
+    decode_json_obj(decoder, *o);
+    d.entries.insert(std::move(val));
+  }
+}
+// decode map<int, set<string>> into map<int, set<rgw_data_notify_entry>>
+void decode_json_obj(rgw_data_notify_v1_decoder& d, JSONObj *obj)
+{
+  for (JSONObjIter o = obj->find_first(); !o.end(); ++o) {
+    int shard_id = 0;
+    JSONDecoder::decode_json("key", shard_id, *o);
+    bc::flat_set<rgw_data_notify_entry> val;
+    SetDecoderV1 decoder{val};
+    JSONDecoder::decode_json("val", decoder, *o);
+    d.shards[shard_id] = std::move(val);
+  }
+}
-- 
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