SERVER-42726 enable logging via logv2

1 files changed, 88 insertions, 0 deletions

diff --git a/src/mongo/logv2/log_detail.h b/src/mongo/logv2/log_detail.h
new file mode 100644
index 00000000000..b1a1948b08e
--- /dev/null
+++ b/src/mongo/logv2/log_detail.h
@@ -0,0 +1,88 @@
+/**
+ *    Copyright (C) 2018-present MongoDB, Inc.
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the Server Side Public License, version 1,
+ *    as published by MongoDB, Inc.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    Server Side Public License for more details.
+ *
+ *    You should have received a copy of the Server Side Public License
+ *    along with this program. If not, see
+ *    <http://www.mongodb.com/licensing/server-side-public-license>.
+ *
+ *    As a special exception, the copyright holders give permission to link the
+ *    code of portions of this program with the OpenSSL library under certain
+ *    conditions as described in each individual source file and distribute
+ *    linked combinations including the program with the OpenSSL library. You
+ *    must comply with the Server Side Public License in all respects for
+ *    all of the code used other than as permitted herein. If you modify file(s)
+ *    with this exception, you may extend this exception to your version of the
+ *    file(s), but you are not obligated to do so. If you do not wish to do so,
+ *    delete this exception statement from your version. If you delete this
+ *    exception statement from all source files in the program, then also delete
+ *    it in the license file.
+ */
+
+#include "mongo/base/status.h"
+#include "mongo/bson/util/builder.h"
+#include "mongo/logv2/attribute_argument_set.h"
+#include "mongo/logv2/log_component.h"
+#include "mongo/logv2/log_domain.h"
+#include "mongo/logv2/log_options.h"
+#include "mongo/logv2/log_severity.h"
+#include "mongo/util/errno_util.h"
+
+namespace mongo {
+namespace logv2 {
+namespace detail {
+void doLogImpl(LogSeverity const& severity,
+               LogOptions const& options,
+               StringData stable_id,
+               StringData message,
+               AttributeArgumentSet const& attrs);
+
+void doLogRecordImpl(LogRecord&& debugRecord,
+                     LogDomain& domain,
+                     StringData message,
+                     AttributeArgumentSet const& attrs);
+
+template <typename S, typename... Args>
+void doLog(LogSeverity const& severity,
+           LogOptions const& options,
+           StringData stable_id,
+           S const& message,
+           fmt::internal::named_arg<Args, char>&&... args) {
+    AttributeArgumentSet attr_set;
+    auto arg_store = fmt::internal::make_args_checked(message, (args.value)...);
+    attr_set._values = arg_store;
+    (attr_set._names.push_back(::mongo::StringData(args.name.data(), args.name.size())), ...);
+    auto msg = static_cast<fmt::string_view>(message);
+    doLogImpl(severity, options, stable_id, ::mongo::StringData(msg.data(), msg.size()), attr_set);
+}
+
+template <typename S, typename... Args>
+void doLogRecord(LogRecord&& record,
+                 LogDomain& domain,
+                 S const& message,
+                 fmt::internal::named_arg<Args, char>&&... args) {
+    AttributeArgumentSet attr_set;
+    auto arg_store = fmt::internal::make_args_checked(message, (args.value)...);
+    attr_set._values = arg_store;
+    (attr_set._names.push_back(::mongo::StringData(args.name.data(), args.name.size())), ...);
+    auto msg = static_cast<fmt::string_view>(message);
+    doLogRecordImpl(
+        std::move(record), domain, ::mongo::StringData(msg.data(), msg.size()), attr_set);
+}
+
+}  // namespace detail
+}  // namespace logv2
+
+inline fmt::internal::udl_arg<char> operator"" _attr(const char* s, std::size_t) {
+    return {s};
+}
+
+}  // namespace mongo