File indexing completed on 2024-04-21 11:25:02

 /*
     This file is part of the KDE Baloo project.
     SPDX-FileCopyrightText: 2015 Vishesh Handa <vhanda@kde.org>
     SPDX-FileCopyrightText: 2011 The LevelDB Authors. All rights reserved.
 
     SPDX-License-Identifier: LGPL-2.1-or-later AND BSD-3-Clause
 */
 
 #ifndef BALOO_STORAGE_LEVELDB_UTIL_CODING_H
 #define BALOO_STORAGE_LEVELDB_UTIL_CODING_H
 
 #include <QByteArray>
 #include <QVector>
 
 namespace Baloo {
 
 /*
  * This is a stripped down version of various encode/decode functions for
  * 32/64 bit fixed/variable data types. If you need other functions than the
  * ones available here you can take a look in the git baloo history
  */
 
 inline void putFixed64(QByteArray* dst, quint64 value)
 {
     dst->append(reinterpret_cast<const char*>(&value), sizeof(value));
 }
 
 /*
  * temporaryStorage is used to avoid an internal allocation of a temporary
  * buffer which is needed for serialization. Since this function is normally
  * called inside a loop, the temporary buffer must not be reallocated on every
  * call.
  */
 void putDifferentialVarInt32(QByteArray &temporaryStorage, QByteArray* dst, const QVector<quint32>& values);
 char* getDifferentialVarInt32(char* input, char* limit, QVector<quint32>* values);
 extern const char* getVarint32Ptr(const char* p, const char* limit, quint32* v);
 
 inline quint64 decodeFixed64(const char* ptr)
 {
     // Load the raw bytes
     quint64 result;
     memcpy(&result, ptr, sizeof(result));  // gcc optimizes this to a plain load
     return result;
 }
 
 // Internal routine for use by fallback path of GetVarint32Ptr
 extern char* getVarint32PtrFallback(char* p, char* limit, quint32* value);
 inline char* getVarint32Ptr(char* p, char* limit, quint32* value)
 {
     if (p >= limit) {
         return nullptr;
     }
 
     quint32 result = *(reinterpret_cast<const unsigned char*>(p));
     if ((result & 128) == 0) {
         *value = result;
         return p + 1;
     }
 
     return getVarint32PtrFallback(p, limit, value);
 }
 
 }
 
 #endif