1. OSFile #2
Interface & API

2. Classes
OSF_Directory
Templates
OSF_Exception
OSF_DiskList
OSF_File
OSF_FileSystem
Interfaces
OSF_PlainAPI
OSF_DirectoryInterface
OSF_TestUnit
OSF_FileInterface
OSF_Types
OSF_VHDDInterface
OSF_VHDD
OSF_DiskListInterface
OSF_FileSystemInterface

3. OSF_PlainAPI

4. Easy to use
You can use OSF_PlainAPI to easy non-object
oriented access.

5. OSF_PlainAPI
OSF_FileHandle* OSF_Open(string path);
void OSF_Close(OSF_FileHandle* fileHandle);
OSF_PlainAPIInt OSF_Read(OSF_FileHandle* fileHandle, void* buf, OSF_PlainAPIInt count);
OSF_PlainAPIInt OSF_Write(OSF_FileHandle* fileHandle, void* buf, OSF_PlainAPIInt count);
void OSF_Ls(string path, void (*callback)(OSF_DirRecord*));
OSF_OWNER OSF_chownFile(string path);
void OSF_chownFile(OSF_OWNER owner, string path);
OSF_PERMISSION OSF_chmodFile(string path);
void OSF_chmodFile(OSF_PERMISSION permission, string path);
void OSF_remove(string dir, string filename);

6. Console example #1
if (command == "write") {
string filename;
cin >> filename;
cin >> buffer;
OSF_FileHandle* handle = OSF_Open(path + "/" + filename, true);
OSF_Write(handle, buffer, sizeof (buffer));
OSF_Close(handle);
}

7. Console example #2
if (command == "ls") {
OSF_Ls(path, &ls_print);
cout << endl;
}

8. Console example #3
if (command == "setowner") {
string filename;
cin >> filename;
OSF_OWNER owner;
cin >> owner;
OSF_chownFile(owner, path + "/" + filename);
}

9. OOP
Object Oriented Programing

10. Interfaces
OSF_Types - contain type and preprocessor macros
OSF_VHDDInterface
- represent your virtual hard disk
OSF_FileSystemInterface - represent file system on the virtual hard disk
OSF_DirectoryInterface
- represent a directory
OSF_FileInterface
- represent a file
OSF_DiskListInterface
- provide data organization interface

11. example #create
//Create new virtual hard disk
vHDD = new OSF_VHDD(filePath 128, 80, true);
//create new file system of the disk
OSF_FileSystemHeader header;
OSF_scpy(header.diskName, "testDisk");
fileSystem = new OSF_FileSystem(vHDD, &header, 2);

12. example #create direcotry
OSF_DirectoryInterface* rootDir = plainAPIData->fs->getRootDir();
OSF_DirectoryInterface* d1 = rootDir->createDir("d1");
OSF_DirectoryInterface* d2_1 = d1->createDir("d2_1");
OSF_DirectoryInterface* d2_2 = d2_1->createDir("d2_2");
OSF_DirectoryInterface* d3 = d2_1->createDir("d3");
//…. OR
rootDir->mkdir(“d1/d2/d3/d4/…”);

13. example #file
//create
OSF_FileInterface* file = directory->createFile("f1");
//write to file
int bufSize = clusterSize * clusterCount;
char* buf = testUnit->createBuffer(bufSize); //random data
f1->write(buf, 0, 2);

14. OSF_Directory & OSF_File

15. Tests

16. Test classes
System contain OSF_TestUnit. The class provide interface for c++ testing.
Make possible integrate OSF tests with NetBeans IDE and other graphic
interfaces.

17. Tests

18. https://github.com/SebastianPozoga/OSFile

19. Biblografia
“Jądro systemu UNIX” - Vahalia - Nowe
horyzonty
“Anatomia PC. Wydanie X”, Piotr Metzger Helion