rewrite init to restart failed processes, add file renaming, directory creation, directory renaming, directory removal, add process killing, unify shells, readme changes.

code/kernel/io_file.c

@@ -289,6 +289,48 @@ __declspec(dllexport) KSTATUS IoDeleteFile(const char* path) {
     return fs->Delete(fs, relPath);
 }
 
+__declspec(dllexport) KSTATUS IoRenameFile(const char* oldPath, const char* newPath) {
+    if (!oldPath || !newPath) return STATUS_INVALID_PARAMETER;
+
+    char oldRel[CWD_MAX];
+    char newRel[CWD_MAX];
+    uint8_t oldDrive = ResolvePath(oldPath, oldRel, sizeof(oldRel));
+    uint8_t newDrive = ResolvePath(newPath, newRel, sizeof(newRel));
+    if (oldDrive != newDrive) return STATUS_NOT_SUPPORTED;
+
+    IO_FILESYSTEM* fs = gVolumes[oldDrive].Fs;
+    if (!fs)          return STATUS_NOT_FOUND;
+    if (!fs->Rename)  return STATUS_NOT_SUPPORTED;
+
+    return fs->Rename(fs, oldRel, newRel);
+}
+
+__declspec(dllexport) KSTATUS IoCreateDir(const char* path) {
+    if (!path) return STATUS_INVALID_PARAMETER;
+
+    char relPath[CWD_MAX];
+    uint8_t drive = ResolvePath(path, relPath, sizeof(relPath));
+
+    IO_FILESYSTEM* fs = gVolumes[drive].Fs;
+    if (!fs)           return STATUS_NOT_FOUND;
+    if (!fs->CreateDir) return STATUS_NOT_SUPPORTED;
+
+    return fs->CreateDir(fs, relPath);
+}
+
+__declspec(dllexport) KSTATUS IoRemoveDir(const char* path) {
+    if (!path) return STATUS_INVALID_PARAMETER;
+
+    char relPath[CWD_MAX];
+    uint8_t drive = ResolvePath(path, relPath, sizeof(relPath));
+
+    IO_FILESYSTEM* fs = gVolumes[drive].Fs;
+    if (!fs)           return STATUS_NOT_FOUND;
+    if (!fs->RemoveDir) return STATUS_NOT_SUPPORTED;
+
+    return fs->RemoveDir(fs, relPath);
+}
+
 // ---------------------------------------------------------------------------
 // IoTruncateFile - resize the file; updates the cached Size on success
 // ---------------------------------------------------------------------------