string& string::operator= (string&& str)
{
if (this != &str)
{
moveData(str);
}
return *this;
}
// inserts data into file
//
// args: offset in this file to start inserting data at
// size of data to insert into this file
// file descriptor of file to insert data from
// returns: size of data inserted from input file
// ERROR_RETURN if error
u32 GenericFile::insertData(u32 insertOffset, u32 insertSize, FILE* in_fd)
{
// make sure file is open
if(!isOpen())
return ERROR_RETURN;
// move existing data to create a space for adding new data into
if(!moveData(insertOffset, insertSize))
return ERROR_RETURN;
// insert data at insert offset
if(readInData(insertOffset, insertSize, in_fd) != insertSize)
return ERROR_RETURN;
return insertSize;
}
bool IOBuffer::ensureSize(rx_uint32 expectedSize) {
// 1. we have enough space
if(published + expectedSize <= size) {
return true;
}
// 2. not enough space, try to move it.
moveData();
// 3. check if we have enough space after moving..
if(published + expectedSize <= size) {
return true;
}
// 4. not enough space.
// first allocate at least 1/3 of what we have and no less then min_chunk_size
if( (published + expectedSize - size) < (size / 3)) {
expectedSize = size + size / 3 - published;
}
if(expectedSize < min_chunk_size) {
expectedSize = min_chunk_size;
}
// 5. create a new buffer.
rx_uint8* tmp_buffer = new rx_uint8[published + expectedSize];
// 6. copy exising data to tmp buffer
if(buffer != NULL) {
memcpy(tmp_buffer, buffer, published);
delete[] buffer;
}
buffer = tmp_buffer;
// 7. update our size.
size = published + expectedSize;
return true;
}
// remove data from file
// (updates section headers to point to correct offsets)
//
// args: offset in this file to start removing data from
// size of data to remove from this file
// returns: size of data removed from input file
// ERROR_RETURN if error
u32 GenericFile::removeData(u32 removeOffset, u32 removeSize)
{
// make sure file is open
if(!isOpen())
return ERROR_RETURN;
// move existing data to 'cover up' the old info
if(!moveData(removeOffset, -(s32)removeSize))
return ERROR_RETURN;
// set new end of file marker
fseek(fd, 0, SEEK_END);
u32 eofOffset = ftell(fd) - removeSize;
char filename[256];
strcpy(filename, getFilename());
close();
if(!SetNewEndOfFile(filename, eofOffset))
return ERROR_RETURN;
if(!open(filename))
return ERROR_RETURN;
return removeSize;
}
Answer& Answer::operator=(Answer &&rhs) {
moveData(static_cast<Answer&&>(rhs));
return *this;
}
Answer::Answer(Answer&& rhs) {
moveData(static_cast<Answer&&>(rhs));
}
string::string(string&& str){
moveData(str);
}
