ErrorCode writeInodeData(FileSystem* fs, Inode* inode, BYTE* buf, size_type off, size_type size, size_type* writebyte){
assert(off < MAX_FILE_SIZE);
/* size_type i = 0;
for(i=0; i<size; i++){
printf("%c", *(buf+i));
}
*/
size_type byteswritten = 0;
size_type start = off;
while(byteswritten < size){
size_type b_id;
size_type b_offset;
size_type len;
ErrorCode err = Potato_bmap(fs, inode, &start, &b_id, &b_offset);
if(err == Success && b_id > 0){
len = size - byteswritten < BLOCK_SIZE-b_offset? size-byteswritten:BLOCK_SIZE-b_offset;
printf("[writeInodeData] write block %ld, offset %ld, len %ld\n", b_id, b_offset, len);
err = writeDataBlock(fs, b_id, buf, b_offset, len);
if(err != Success){
return err;
}
}else{
ErrorCode err = Potato_balloc(fs, inode, start/BLOCK_SIZE, &b_id);
printf("[writeInodeData] cur b_id: %ld\n", b_id);
if(err != Success)
return err;
b_offset = start%BLOCK_SIZE;
len = size - byteswritten < BLOCK_SIZE-b_offset? size-byteswritten:BLOCK_SIZE-b_offset;
err = writeDataBlock(fs, b_id, buf, b_offset, len);
if(err != Success)
return err;
}
byteswritten += len;
start+= len;
buf+=len;
}
*writebyte = byteswritten;
inode->fileSize = off+size>inode->fileSize? off+size: inode->fileSize;
return Success;
}
void writeBlock(CacheData *cacheData) {
if (cacheData!=NULL) {
writeDataBlock(cacheData);
}
}
