[Pkg-javascript-commits] [node-leveldown] 09/23: add liveBackup bindings

[Andrew Kelley]

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andrewrk-guest pushed a commit to tag hyper-0.10.2
in repository node-leveldown.

commit 408df328afd12cb3e65235aebe7cee6cce911534
Author: Max Ogden <max at maxogden.com>
Date:   Thu Aug 29 16:58:59 2013 -0700

    add liveBackup bindings
---
 src/database.cc | 37 ++++++++++++++++++++++++++++++++++++-
 src/database.h  |  2 ++
 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/src/database.cc b/src/database.cc
index 63952ee..d3df8c4 100644
--- a/src/database.cc
+++ b/src/database.cc
@@ -89,6 +89,13 @@ void Database::GetPropertyFromDatabase (
   db->GetProperty(property, value);
 }
 
+void Database::LiveBackup (
+      const leveldb::Slice& name
+    ) {
+
+  db->LiveBackup(name);
+}
+
 leveldb::Iterator* Database::NewIterator (leveldb::ReadOptions* options) {
   return db->NewIterator(*options);
 }
@@ -151,6 +158,7 @@ void Database::Init () {
   NODE_SET_PROTOTYPE_METHOD(tpl, "batch", Database::Batch);
   NODE_SET_PROTOTYPE_METHOD(tpl, "approximateSize", Database::ApproximateSize);
   NODE_SET_PROTOTYPE_METHOD(tpl, "getProperty", Database::GetProperty);
+  NODE_SET_PROTOTYPE_METHOD(tpl, "liveBackup", Database::LiveBackup);
   NODE_SET_PROTOTYPE_METHOD(tpl, "iterator", Database::Iterator);
 }
 
@@ -543,6 +551,33 @@ NAN_METHOD(Database::GetProperty) {
   NanReturnValue(returnValue);
 }
 
+NAN_METHOD(Database::LiveBackup) {
+  NanScope();
+
+  v8::Local<v8::Value> nameV = args[0];
+  v8::Local<v8::Function> callback; // for LD_CB_ERR_IF_NULL_OR_UNDEFINED
+
+  if (!nameV->IsString()) {
+    LD_THROW_RETURN(liveBackup() requires a valid `name` argument)
+  }
+
+  LD_CB_ERR_IF_NULL_OR_UNDEFINED(nameV, name)
+
+  LD_STRING_OR_BUFFER_TO_SLICE(name, nameV, name)
+
+  leveldown::Database* database =
+      node::ObjectWrap::Unwrap<leveldown::Database>(args.This());
+
+  std::string* value = new std::string();
+  database->LiveBackup(name);
+  v8::Local<v8::String> returnValue
+      = v8::String::New(value->c_str(), value->length());
+  delete value;
+  delete[] name.data();
+
+  return returnValue;
+}
+
 NAN_METHOD(Database::Iterator) {
   NanScope();
 
@@ -584,5 +619,5 @@ NAN_METHOD(Database::Iterator) {
   NanReturnValue(iteratorHandle);
 }
 
-
 } // namespace leveldown
+
diff --git a/src/database.h b/src/database.h
index 65b884e..a55631e 100644
--- a/src/database.h
+++ b/src/database.h
@@ -70,6 +70,7 @@ public:
   );
   uint64_t ApproximateSizeFromDatabase (const leveldb::Range* range);
   void GetPropertyFromDatabase (const leveldb::Slice& property, std::string* value);
+  void LiveBackup (const leveldb::Slice& name);
   leveldb::Iterator* NewIterator (leveldb::ReadOptions* options);
   const leveldb::Snapshot* NewSnapshot ();
   void ReleaseSnapshot (const leveldb::Snapshot* snapshot);
@@ -104,6 +105,7 @@ private:
   static NAN_METHOD(Iterator);
   static NAN_METHOD(ApproximateSize);
   static NAN_METHOD(GetProperty);
+  static NAN_METHOD(LiveBackup);
 };
 
 } // namespace leveldown

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