130 lines
3.6 KiB
C++
130 lines
3.6 KiB
C++
/****************************************************************************
|
|
Copyright (c) 2009, Radon Labs GmbH
|
|
Copyright (c) 2011-2013,WebJet Business Division,CYOU
|
|
|
|
http://www.genesis-3d.com.cn
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
****************************************************************************/
|
|
|
|
#include "stdneb.h"
|
|
#include "util/stringbuffer.h"
|
|
|
|
#include <string.h>
|
|
|
|
namespace Util
|
|
{
|
|
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
*/
|
|
StringBuffer::StringBuffer() :
|
|
chunkSize(0),
|
|
curPointer(0)
|
|
{
|
|
// empty
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
*/
|
|
StringBuffer::~StringBuffer()
|
|
{
|
|
if (this->IsValid())
|
|
{
|
|
this->Discard();
|
|
}
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
NOTE: this method must be called before any threads are spawned.
|
|
*/
|
|
void
|
|
StringBuffer::Setup(SizeT size)
|
|
{
|
|
n_assert(!this->IsValid());
|
|
n_assert(size > 0);
|
|
this->chunkSize = size;
|
|
this->AllocNewChunk();
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
*/
|
|
void
|
|
StringBuffer::Discard()
|
|
{
|
|
n_assert(this->IsValid());
|
|
IndexT i;
|
|
for (i = 0; i < this->chunks.Size(); i++)
|
|
{
|
|
Memory::Free(Memory::StringDataHeap, this->chunks[i]);
|
|
this->chunks[i] = 0;
|
|
}
|
|
this->chunks.Clear();
|
|
this->chunkSize = 0;
|
|
this->curPointer = 0;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
*/
|
|
void
|
|
StringBuffer::AllocNewChunk()
|
|
{
|
|
char* newChunk = (char*) Memory::Alloc(Memory::StringDataHeap, this->chunkSize);
|
|
this->chunks.Append(newChunk);
|
|
this->curPointer = newChunk;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
Copies a string to the end of the string buffer, returns pointer to
|
|
copied string.
|
|
*/
|
|
const char*
|
|
StringBuffer::AddString(const char* str)
|
|
{
|
|
n_assert(0 != str);
|
|
n_assert(this->IsValid());
|
|
|
|
// get string length, must be less then chunk size
|
|
SizeT strLength = strlen(str) + 1;
|
|
n_assert(strLength < this->chunkSize);
|
|
|
|
// check if a new buffer must be allocated
|
|
if ((this->curPointer + strLength) >= (this->chunks.Back() + this->chunkSize))
|
|
{
|
|
#if NEBULA3_ENABLE_GLOBAL_STRINGBUFFER_GROWTH
|
|
this->AllocNewChunk();
|
|
#else
|
|
n_error("String buffer full when adding string '%s' (string buffer growth is disabled)!\n", str);
|
|
#endif
|
|
}
|
|
|
|
// copy string into string buffer
|
|
char* dstPointer = this->curPointer;
|
|
strcpy(dstPointer, str);
|
|
this->curPointer += strLength;
|
|
return dstPointer;
|
|
}
|
|
|
|
} // namespace Util
|