129 lines
2 KiB
Text
129 lines
2 KiB
Text
#define MEMBUF_THRASH_SIZE 25
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/**
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* Releases all resources(Memory USed) is locally allocated
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*/
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inline void MemBuffer::
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ClearBuffer(void) {
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if (_BufferLocal == true) {
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if (_Buffer != nullptr) {
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delete[] _Buffer;
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}
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_Buffer = nullptr;
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}
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}
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/**
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* Locally allocate a new buffer
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*/
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inline void MemBuffer::
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AllocBuffer(size_t len) {
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_Buffer = new char[len];
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_BufferLocal = true;
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_BufferLen = len;
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}
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/**
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* default constructor
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*/
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inline MemBuffer::
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MemBuffer(void) {
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_Buffer = nullptr;
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_BufferLocal = false;
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_BufferLen = 0;
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}
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/**
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* Constructure to locall allocate a buffer
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*/
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inline MemBuffer::
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MemBuffer(size_t len) {
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AllocBuffer(len);
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}
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/**
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* Constructure to use an external buffer
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*/
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inline MemBuffer::
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MemBuffer(char *data, size_t len) {
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_BufferLocal = false;
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_BufferLen = len;
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_Buffer = data;
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}
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/**
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* CLean UP a mess on Deletion
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*/
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inline MemBuffer::
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~MemBuffer() {
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ClearBuffer();
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}
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/**
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* Assigns a buffer
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*/
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inline void MemBuffer::
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SetBuffer(char * data, size_t len) {
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if (_BufferLocal == true) {
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ClearBuffer();
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}
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_BufferLocal = false;
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_BufferLen = len;
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_Buffer = data;
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}
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/**
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* Grow a buffer is needed to get to a sertion size No care is made here to
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* preserve convtent unlike a vector of chars
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*
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*/
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inline void MemBuffer::
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GrowBuffer(size_t new_len) {
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if (new_len >= _BufferLen) {
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size_t len = new_len + MEMBUF_THRASH_SIZE;
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len = len +len;
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char *tmp = new char[len];
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if (_Buffer != nullptr) {
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memcpy(tmp,_Buffer,_BufferLen);
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}
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ClearBuffer();
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_Buffer = tmp;
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_BufferLocal = true;
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_BufferLen = len;
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}
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}
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/**
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* Access to the BUffer Size Information
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*/
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inline size_t MemBuffer::
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GetBufferSize(void) const {
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return _BufferLen;
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}
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/**
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* Access to the actual BUffer
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*/
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inline char *MemBuffer::
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GetBuffer(void) {
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return _Buffer;
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}
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inline const char *MemBuffer::
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GetBuffer(void) const {
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return _Buffer;
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}
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/**
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*
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*/
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inline bool MemBuffer::
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InBufferRange(char *inpos) {
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return (inpos >= _Buffer && inpos <= (_Buffer + _BufferLen));
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}
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