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XII Release 0.1.0
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A file writer that caches all written data and only opens and writes to the output file when everything is finished. Useful to ensure that only complete files are written, or nothing at all, in case of a crash. More...
#include <DeferredFileWriter.h>
Public Member Functions | |
~xiiDeferredFileWriter () | |
Upon destruction the file is closed and thus written, unless Discard was called before. | |
void | SetOutput (xiiStringView sFileToWriteTo, bool bOnlyWriteIfDifferent=false) |
This must be configured before anything is written to the file. | |
virtual xiiResult | WriteBytes (const void *pWriteBuffer, xiiUInt64 uiBytesToWrite) override |
Writes a raw number of bytes from the buffer, this is the only method which has to be implemented to fully implement the interface. | |
xiiResult | Close (bool *out_pWasWrittenTo=nullptr) |
Upon calling this the content is written to the file specified with SetOutput(). The return value is XII_FAILURE if the file could not be opened or not completely written. | |
void | Discard () |
Calling this abandons the content and a later Close or destruction of the instance will no longer write anything to file. | |
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xiiStreamWriter () | |
Constructor. | |
virtual | ~xiiStreamWriter () |
Virtual destructor to ensure correct cleanup. | |
virtual xiiResult | Flush () |
Flushes the stream, may be implemented (not necessary to implement the interface correctly) so that user code can ensure that content is written. | |
template<typename T> | |
xiiResult | WriteWordValue (const T *pWordValue) |
Helper method to write a word value correctly (copes with potentially different endianess). | |
template<typename T> | |
xiiResult | WriteDWordValue (const T *pDWordValue) |
Helper method to write a dword value correctly (copes with potentially different endianess). | |
template<typename T> | |
xiiResult | WriteQWordValue (const T *pQWordValue) |
Helper method to write a qword value correctly (copes with potentially different endianess). | |
XII_ALWAYS_INLINE void | WriteVersion (xiiTypeVersion version) |
Writes a type version to the stream. | |
template<typename ArrayType, typename ValueType> | |
xiiResult | WriteArray (const xiiArrayBase< ValueType, ArrayType > &array) |
Writes an array of elements to the stream. | |
template<typename ValueType, xiiUInt16 uiSize> | |
xiiResult | WriteArray (const xiiSmallArrayBase< ValueType, uiSize > &array) |
Writes a small array of elements to the stream. | |
template<typename ValueType, xiiUInt32 uiSize> | |
xiiResult | WriteArray (const ValueType(&array)[uiSize]) |
Writes a C style fixed array. | |
template<typename KeyType, typename Comparer> | |
xiiResult | WriteSet (const xiiSetBase< KeyType, Comparer > &set) |
Writes a set. | |
template<typename KeyType, typename ValueType, typename Comparer> | |
xiiResult | WriteMap (const xiiMapBase< KeyType, ValueType, Comparer > &map) |
Writes a map. | |
template<typename KeyType, typename ValueType, typename Hasher> | |
xiiResult | WriteHashTable (const xiiHashTableBase< KeyType, ValueType, Hasher > &hashTable) |
Writes a hash table (note that the entry order might change on read) | |
xiiResult | WriteString (const xiiStringView sStringView) |
Writes a string. | |
A file writer that caches all written data and only opens and writes to the output file when everything is finished. Useful to ensure that only complete files are written, or nothing at all, in case of a crash.
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overridevirtual |
Writes a raw number of bytes from the buffer, this is the only method which has to be implemented to fully implement the interface.
Implements xiiStreamWriter.