bfs_tools/lib/Disk.cpp

80 	void *buffer = malloc(length);
81 	if (buffer == NULL)
84 	ssize_t read = fDisk->ReadAt(fDisk->ToOffset(run),buffer,length);
86 		free(buffer);
90 	return new CacheableBlockRun(run,(uint8 *)buffer);
227 	char buffer[BlockSize()];
228 	ssize_t bytes = ReadAt(0, buffer, BlockSize());
232 	file.Write(buffer, BlockSize());
234 	// initialize buffer
235 	memset(buffer, 0, BlockSize());
236 	memcpy(buffer + 512, &fSuperBlock, sizeof(disk_super_block));
238 	// write buffer to disk
239 	WriteAt(0, buffer, BlockSize());
255 	char buffer[blockSize + 1024];
274 		ssize_t bytes = fBufferedFile->ReadAt(offset, buffer, blockSize + 1024);
283 			disk_super_block *super = (disk_super_block *)&buffer[i];
438 		char buffer[1024];
439 		GetNextSpecialInode(buffer,&offset,offset + 32LL * 65536 * BlockSize(),true);
500 	char buffer[1024];
501 	bfs_inode *inode = (bfs_inode *)buffer;
508 		if (fBufferedFile->ReadAt(offset, buffer, sizeof(buffer)) < B_OK) {
510 				", size = %ld)!\n", offset, sizeof(buffer));
557 Disk::GetNextSpecialInode(char *buffer, off_t *_offset, off_t end,
564 	bfs_inode *inode = (bfs_inode *)buffer;
567 		if (fBufferedFile->ReadAt(offset, buffer, 1024) < B_OK) {
640 	char buffer[1024];
641 	bfs_inode *inode = (bfs_inode *)buffer;
651 	if (GetNextSpecialInode(buffer,&offset,offset + 65536LL * BlockSize()) == B_OK)
666 		if (GetNextSpecialInode(buffer, &commonOffset, commonOffset) == B_OK) {
678 		if (GetNextSpecialInode(buffer,&logOffset,logOffset + LogSize() * BlockSize()) == B_OK)
684 			//fBufferedFile->ReadAt(logOffset + BlockSize(),buffer,1024);
685 			//if (*(uint32 *)buffer == BPLUSTREE_MAGIC)
707 			if (GetNextSpecialInode(buffer,&offset,65536LL * 16 * BlockSize()) == B_OK)
722 Disk::Read(void *buffer, size_t size)
724 	return fBufferedFile->Read(buffer, size);
729 Disk::Write(const void *buffer, size_t size)
731 	return fBufferedFile->Write(buffer, size);
736 Disk::ReadAt(off_t pos, void *buffer, size_t size)
738 	return fBufferedFile->ReadAt(pos + fRawDiskOffset, buffer, size);
743 Disk::WriteAt(off_t pos, const void *buffer, size_t size)
745 	return fBufferedFile->WriteAt(pos + fRawDiskOffset, buffer, size);