diff options
Diffstat (limited to 'src/dbwrapper.h')
| -rw-r--r-- | src/dbwrapper.h | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/src/dbwrapper.h b/src/dbwrapper.h index 47bdb31b5b..4a79bbd17d 100644 --- a/src/dbwrapper.h +++ b/src/dbwrapper.h @@ -17,6 +17,9 @@ #include <leveldb/db.h> #include <leveldb/write_batch.h> +static const size_t DBWRAPPER_PREALLOC_KEY_SIZE = 64; +static const size_t DBWRAPPER_PREALLOC_VALUE_SIZE = 1024; + class dbwrapper_error : public std::runtime_error { public: @@ -60,12 +63,12 @@ public: void Write(const K& key, const V& value) { CDataStream ssKey(SER_DISK, CLIENT_VERSION); - ssKey.reserve(ssKey.GetSerializeSize(key)); + ssKey.reserve(DBWRAPPER_PREALLOC_KEY_SIZE); ssKey << key; leveldb::Slice slKey(&ssKey[0], ssKey.size()); CDataStream ssValue(SER_DISK, CLIENT_VERSION); - ssValue.reserve(ssValue.GetSerializeSize(value)); + ssValue.reserve(DBWRAPPER_PREALLOC_VALUE_SIZE); ssValue << value; ssValue.Xor(dbwrapper_private::GetObfuscateKey(parent)); leveldb::Slice slValue(&ssValue[0], ssValue.size()); @@ -77,7 +80,7 @@ public: void Erase(const K& key) { CDataStream ssKey(SER_DISK, CLIENT_VERSION); - ssKey.reserve(ssKey.GetSerializeSize(key)); + ssKey.reserve(DBWRAPPER_PREALLOC_KEY_SIZE); ssKey << key; leveldb::Slice slKey(&ssKey[0], ssKey.size()); @@ -107,7 +110,7 @@ public: template<typename K> void Seek(const K& key) { CDataStream ssKey(SER_DISK, CLIENT_VERSION); - ssKey.reserve(ssKey.GetSerializeSize(key)); + ssKey.reserve(DBWRAPPER_PREALLOC_KEY_SIZE); ssKey << key; leveldb::Slice slKey(&ssKey[0], ssKey.size()); piter->Seek(slKey); @@ -200,7 +203,7 @@ public: bool Read(const K& key, V& value) const { CDataStream ssKey(SER_DISK, CLIENT_VERSION); - ssKey.reserve(ssKey.GetSerializeSize(key)); + ssKey.reserve(DBWRAPPER_PREALLOC_KEY_SIZE); ssKey << key; leveldb::Slice slKey(&ssKey[0], ssKey.size()); @@ -234,7 +237,7 @@ public: bool Exists(const K& key) const { CDataStream ssKey(SER_DISK, CLIENT_VERSION); - ssKey.reserve(ssKey.GetSerializeSize(key)); + ssKey.reserve(DBWRAPPER_PREALLOC_KEY_SIZE); ssKey << key; leveldb::Slice slKey(&ssKey[0], ssKey.size()); |