/*
* Only for insertion of new blocks in file
*/
int FileBlocks::insert(void* object, unsigned blockNumber, unsigned insertionSize){
// if (blockNumber == 0) throw InvalidOperationException();
char * buffer =(char*) find(&blockNumber);
if ( buffer != NULL){
//Block Already exists
delete[] buffer;
return 3;
}
delete[] buffer;
size_t result;
reset();
//seeks EOF
result = fseek(pFile, 0, SEEK_END);
if (result != 0) return 0;
if (insertionSize < (blockSize-1)){
buffer = new char[blockSize];
for (unsigned i = 0; i< insertionSize; i++){
buffer[i] = ((char*)object)[i];
}
buffer [insertionSize] ='\0';
for (unsigned i = (insertionSize+1); i< blockSize; i++){
buffer[i] = '#';
}
}
else
buffer = (char*) object;
//writes the buffer from blocks beginning
result = fwrite ( buffer ,1, (blockSize), pFile );
if (result != (blockSize)) return result;
updateSpace(blockNumber, insertionSize);
delete[] buffer;
fflush ( pFile );
//Operation completed with no error
return 1;
}
MStatus SargassoNode::compute( const MPlug& plug, MDataBlock& block )
{
MStatus stat;
if(!m_isInitd) return stat;
if(plug == constraintRotateX ||
plug == constraintRotateY ||
plug == constraintRotateZ ||
plug == constraintTranslateX ||
plug == constraintTranslateY ||
plug == constraintTranslateZ) {
// AHelper::Info<MString>("ov child", plug.name());
// AHelper::Info<unsigned>("ov id", plug.parent().logicalIndex());
unsigned iobject = plug.parent().logicalIndex();
if(iobject > m_numObjects-1) {
MGlobal::displayInfo("n constraint is out of bound");
return MS::kSuccess;
}
if(iobject == 0 && plug == constraintRotateX) {
MDataHandle hm = block.inputValue(atargetMesh);
updateShape(hm.asMesh());
}
if(plug == constraintRotateX)
updateSpace(block, iobject);
MDataHandle hout = block.outputValue(plug, &stat);
if(plug == constraintTranslateX) {
hout.set(m_solvedT.x);
}
else if(plug == constraintTranslateY) {
hout.set(m_solvedT.y);
}
else if(plug == constraintTranslateZ) {
hout.set(m_solvedT.z);
}
else if(plug == constraintRotateX) {
hout.set(m_rot[0]);
}
else if(plug == constraintRotateY) {
hout.set(m_rot[1]);
}
else if(plug == constraintRotateZ) {
hout.set(m_rot[2]);
}
block.setClean( plug );
}
else
return MS::kUnknownParameter;
return MS::kSuccess;
}
int FileBlocks::remove(void* object){
unsigned* blockNumber = (unsigned*)object;
char* buffer = (char*)find(blockNumber);
if ( buffer == NULL )
//Block not found
return 0;
setFree(*blockNumber);
updateSpace(*blockNumber, 0);
delete[] buffer;
return 1;
}
/*
* Updates existing block, no matter if is a free block
* or an ocuppied block.
*/
int FileBlocks::update(void* object, unsigned blockNumber, unsigned updateSize){
// if (blockNumber == 0) throw InvalidOperationException();
char * buffer =(char*) (find(&blockNumber));
if (!buffer)
//Block not found
return 0;
delete[] buffer;
size_t result;
unsigned offset = (blockNumber * (blockSize));
reset();
//Seeks blocks beginning
result = fseek(pFile, offset, SEEK_SET);
if (result != 0)
return 0;
if (updateSize < (blockSize)) {
buffer = new char[blockSize];
for (unsigned i = 0; i < updateSize; i++) {
buffer[i] = ((char*) (object))[i];
}
buffer[updateSize] = '\0';
for (unsigned i = (updateSize + 1); i < blockSize; i++) {
buffer[i] = '#';
}
} else
buffer = (char*) (object);
//writes the buffer from blocks beginning
result = fwrite(buffer, 1, (blockSize), pFile);
if (result != (blockSize))
return 0;
updateSpace(blockNumber, updateSize);
delete[] buffer;
if (result != blockSize) return 0;
return 1;
}
void FileBlocks::deserialize(){
unsigned* buffer = new unsigned[(blockSize / 4)];
fread(buffer, 4, ((blockSize/4)-1), f_space);
unsigned i = 0;
unsigned block = 0;
while (buffer[i] <= blockSize){
updateSpace(block,buffer[i]);
if(buffer[i] == 4095)
setFree(block);
block++;
i++;
}
delete[] buffer;
rewind(f_space);
}
