update ceph source to reef 18.1.2

[ceph.git] / ceph / src / rocksdb / utilities / merge_operators / string_append / stringappend.cc

diff --git a/ceph/src/rocksdb/utilities/merge_operators/string_append/stringappend.cc b/ceph/src/rocksdb/utilities/merge_operators/string_append/stringappend.cc
index 534f7a5661355f13a317c525f9a8f96eb19a59b6..5092cabcb45defd5239fdef8c424da3a9cd8401d 100644 (file)
--- a/ceph/src/rocksdb/utilities/merge_operators/string_append/stringappend.cc
+++ b/ceph/src/rocksdb/utilities/merge_operators/string_append/stringappend.cc
@@ -6,18 +6,35 @@
 
 #include "stringappend.h"
 
-#include <memory>
 #include <assert.h>
 
-#include "rocksdb/slice.h"
+#include <memory>
+
 #include "rocksdb/merge_operator.h"
+#include "rocksdb/slice.h"
+#include "rocksdb/utilities/options_type.h"
 #include "utilities/merge_operators.h"
 
 namespace ROCKSDB_NAMESPACE {
-
+namespace {
+static std::unordered_map<std::string, OptionTypeInfo>
+    stringappend_merge_type_info = {
+#ifndef ROCKSDB_LITE
+        {"delimiter",
+         {0, OptionType::kString, OptionVerificationType::kNormal,
+          OptionTypeFlags::kNone}},
+#endif  // ROCKSDB_LITE
+};
+}  // namespace
 // Constructor: also specify the delimiter character.
 StringAppendOperator::StringAppendOperator(char delim_char)
-    : delim_(delim_char) {
+    : delim_(1, delim_char) {
+  RegisterOptions("Delimiter", &delim_, &stringappend_merge_type_info);
+}
+
+StringAppendOperator::StringAppendOperator(const std::string& delim)
+    : delim_(delim) {
+  RegisterOptions("Delimiter", &delim_, &stringappend_merge_type_info);
 }
 
 // Implementation for the merge operation (concatenates two strings)
@@ -31,29 +48,31 @@ bool StringAppendOperator::Merge(const Slice& /*key*/,
 
   if (!existing_value) {
     // No existing_value. Set *new_value = value
-    new_value->assign(value.data(),value.size());
+    new_value->assign(value.data(), value.size());
   } else {
     // Generic append (existing_value != null).
     // Reserve *new_value to correct size, and apply concatenation.
-    new_value->reserve(existing_value->size() + 1 + value.size());
-    new_value->assign(existing_value->data(),existing_value->size());
-    new_value->append(1,delim_);
+    new_value->reserve(existing_value->size() + delim_.size() + value.size());
+    new_value->assign(existing_value->data(), existing_value->size());
+    new_value->append(delim_);
     new_value->append(value.data(), value.size());
   }
 
   return true;
 }
 
-const char* StringAppendOperator::Name() const  {
-  return "StringAppendOperator";
-}
-
 std::shared_ptr<MergeOperator> MergeOperators::CreateStringAppendOperator() {
   return std::make_shared<StringAppendOperator>(',');
 }
 
-std::shared_ptr<MergeOperator> MergeOperators::CreateStringAppendOperator(char delim_char) {
+std::shared_ptr<MergeOperator> MergeOperators::CreateStringAppendOperator(
+    char delim_char) {
   return std::make_shared<StringAppendOperator>(delim_char);
 }
 
+std::shared_ptr<MergeOperator> MergeOperators::CreateStringAppendOperator(
+    const std::string& delim) {
+  return std::make_shared<StringAppendOperator>(delim);
+}
+
 }  // namespace ROCKSDB_NAMESPACE