| 262 | } |
| 263 | |
| 264 | auto FatFsFileSystem::OpenFil(vfs::Inode* inode, vfs::OpenFlags open_flags) |
| 265 | -> Expected<void> { |
| 266 | auto* fi = static_cast<FatInode*>(inode->fs_private); |
| 267 | if (fi->fil != nullptr) { |
| 268 | // 已打开 |
| 269 | return {}; |
| 270 | } |
| 271 | FIL* fil = AllocateFil(); |
| 272 | if (fil == nullptr) { |
| 273 | return std::unexpected(Error{ErrorCode::kFsFdTableFull}); |
| 274 | } |
| 275 | BYTE fa_mode = 0; |
| 276 | // kOReadOnly == 0，需单独检查 |
| 277 | if (open_flags == vfs::OpenFlags::kOReadOnly) { |
| 278 | fa_mode = FA_READ; |
| 279 | } |
| 280 | if ((open_flags & vfs::OpenFlags::kOWriteOnly) != 0U) { |
| 281 | fa_mode = FA_WRITE; |
| 282 | } |
| 283 | if ((open_flags & vfs::OpenFlags::kOReadWrite) != 0U) { |
| 284 | fa_mode = FA_READ | FA_WRITE; |
| 285 | } |
| 286 | if ((open_flags & vfs::OpenFlags::kOCreate) != 0U) { |
| 287 | fa_mode |= FA_OPEN_ALWAYS; |
| 288 | } |
| 289 | if ((open_flags & vfs::OpenFlags::kOTruncate) != 0U) { |
| 290 | fa_mode |= FA_CREATE_ALWAYS; |
| 291 | } |
| 292 | FRESULT fr = f_open(fil, fi->path.data(), fa_mode); |
| 293 | if (fr != FR_OK) { |
| 294 | FreeFil(fil); |
| 295 | return std::unexpected(Error{FresultToErrorCode(fr)}); |
| 296 | } |
| 297 | fi->fil = fil; |
| 298 | return {}; |
| 299 | } |
| 300 | |
| 301 | auto FatFsFileSystem::FatFsInodeOps::Lookup(vfs::Inode* dir, const char* name) |
| 302 | -> Expected<vfs::Inode*> { |
no test coverage detected