Storage system overhaul: VFS, FAT32, ISO9660, AHCI/IDE refactor, GUI apps & boot drive mounting #49

Merged
admin merged 11 commits from feature/storage-system into develop 2026-03-07 19:53:17 +00:00
11 Commits
Author SHA1 Message Date
Aaron acb4a15e41 Fix file headers
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2026-03-07 19:40:18 +00:00
Aaron d3581eea2e update header
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2026-03-07 19:37:26 +00:00
Aaron 1fc00e3e7c chore: ignore lessons_learnt.md
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2026-03-07 19:33:57 +00:00
Aaron 2f837ace6e chore: remove lessons_learnt.md from tracking
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2026-03-07 19:33:40 +00:00
Aaron f8182b24b3 removed another bad file
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2026-03-07 19:24:59 +00:00
Aaron f0531ff861 Removed bad files
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2026-03-07 19:22:40 +00:00
Aaron 3d9c4cb49a feat: add processmanager.create to diskutil and notepad
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- diskutil: add proc_pid global, diskutil_entry idle proc, create process
  on launch with setWindowOwner, kill on close, zero proc_pid in init
- notepad: add pid field to TNotepadState, notepad_entry idle proc, create
  process on launch with setWindowOwner, kill pid in doCloseWindow
- both apps now appear in PS and are manageable via KILL/TERMINATE
2026-03-07 19:18:55 +00:00
Aaron 3a733b1559 feat: auto-mount boot drive to /boot; fix FAT32 deleted entry triple fault
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- Decode multiboot boot_device byte in storagemanager to identify boot device
- Add isBootDevice to TStorage_Device; propagate isBootDrive to volumes
- Create /boot VFS directory at init; mount boot volume there in auto_mount_volumes
- Fix getDirEntries skipping \-marked (deleted) FAT32 entries to prevent
  triple fault when navigating into a deleted directory via file picker
2026-03-07 18:58:32 +00:00
Aaron deb513c925 storage: fix VFS corruption, ISO9660 hang, OOM; add notepad, file picker, fdtable, GPT, async I/O
VFS fixes:
- GetDirectoryListing(otVDIRECTORY) now returns a heap-allocated snapshot
  instead of a raw live-tree pointer; FreeDirectoryListing no longer
  corrupts the VFS tree (fixes page fault on repeated navigation)
- volumeGetDirectories: guard LL_Size > 0 before loop to prevent uint32
  underflow (0-1 = 0xFFFFFFFF) causing 4B kalloc iterations -> OOM
- Free entry^.fileName and dirList in all branches (memory leak fix)

iso9660:
- equalsIgnoreCase: guard la=0 before loop (same uint32 underflow bug)
- readDirectoryEntries/resolvePath: add 65536/256-iter safety caps

storagemanager:
- Strip debug syslog calls that were allocating 6+ strings per I/O
  (hundreds of I/Os x 6 allocs exhausted the heap)

Process manager:
- Per-process FDTable and Cwd initialised on create, freed on reap
- proc_await: use pointer-indirection spin per lesson #6 (FPC caches
  non-volatile reads; raw while flag=0 returns immediately)
- graphicsrefresh: move LVGL handler from timer ISR (IF=0) to a
  dedicated process so LVGL callbacks can call blocking I/O

New units:
- fdtable.pas: per-process file descriptor table (fd_alloc/get/close)
- iorequest.pas: heap allocation helpers for TIORequest
- gpt.pas: GPT header/entry read + CRC validation
- filepicker.pas: reusable OS-level open/save file picker dialog
- notepad.pas: GUI text editor with selection, indent, save-as

Shell commands (diskcmd, partcmd, volcmd, diskutil):
- Route output to stdout_buf instead of syslog (lesson #4)
- diskutil: async add/remove/format partition; cache-based device display

Add Apache 2.0 license headers to storagemanager.pas, iso9660.pas,
fat32.pas, storagetest.pas

Lessons learnt: #9 VFS listing must return snapshot (not live pointer)
2026-03-07 18:58:32 +00:00
Aaron 789fb7971a getting ready 2026-03-07 18:57:38 +00:00
Aaron 4e3acd6af7 Storage system: AHCI, IDE rework, VFS, volume manager, flatfs, async IO, IOAPIC 2026-03-07 18:45:25 +00:00