maksw/nt-lite
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refactor syscall ABI and FAT32 driver to use request structs and string views natively, enforce handle access rights on object lookup, add scheduler statistics tracking, fix KiSchedule to prevent 50% idle throttling on CPU-bound threads, better document x64 initial user stack alignment, fix process teardown to properly signal exit events and manage thread counts, optimize doom file I/O with a custom handle struct to internally track position and size, add SubsystemData to TEB for generic thread-local state, apply PAGE_NX to non-executable PE sections in the loader, update native apps, tests, and shells to match new APIs, update kernel32 directory retrieval.

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maksw committed 2026-05-26 14:46:49 +02:00
1 parent 603fbdfab1
commit e1248f4afe
43 files changed
+2892 -1857
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code/kernel/io_file.h
+16 -15
View File
@@ -7,6 +7,7 @@
#include <ke_status.h>
#include <ob_object.h>
#include <ke_spinlock.h>
#include <sys_string.h>
// ---------------------------------------------------------------------------
// KDIR_ENTRY - one directory entry returned by ReadDir / SYS_READ_DIR
@@ -35,7 +36,7 @@ typedef struct IO_FILESYSTEM {
// Open a file by absolute path (e.g. "apps\\shell.exe").
// Returns an opaque per-file driver cookie in* fileCtx.
KSTATUS (*Open)(struct IO_FILESYSTEM* fs,
const char* path, void **fileCtx);
SYS_STRING_VIEW path, void **fileCtx);
// Read up to 'size' bytes at 'offset' into 'buf'.
// Sets* bytesRead to actual bytes copied.
@@ -58,19 +59,19 @@ typedef struct IO_FILESYSTEM {
void* completeContext);
// Create a new file at 'path'; returns an open fileCtx on success.
KSTATUS (*Create)(struct IO_FILESYSTEM* fs, const char* path,
KSTATUS (*Create)(struct IO_FILESYSTEM* fs, SYS_STRING_VIEW path,
void** fileCtx);
// Delete the file at 'path'.
KSTATUS (*Delete)(struct IO_FILESYSTEM* fs, const char* path);
KSTATUS (*Delete)(struct IO_FILESYSTEM* fs, SYS_STRING_VIEW path);
// Rename or move a file/directory within the same filesystem.
KSTATUS (*Rename)(struct IO_FILESYSTEM* fs,
const char* oldPath, const char* newPath);
SYS_STRING_VIEW oldPath, SYS_STRING_VIEW newPath);
// Create or remove directories.
KSTATUS (*CreateDir)(struct IO_FILESYSTEM* fs, const char* path);
KSTATUS (*RemoveDir)(struct IO_FILESYSTEM* fs, const char* path);
KSTATUS (*CreateDir)(struct IO_FILESYSTEM* fs, SYS_STRING_VIEW path);
KSTATUS (*RemoveDir)(struct IO_FILESYSTEM* fs, SYS_STRING_VIEW path);
// Truncate or extend the file to exactly 'newSize' bytes.
KSTATUS (*Truncate)(struct IO_FILESYSTEM* fs, void* fileCtx,
@@ -92,7 +93,7 @@ typedef struct IO_FILESYSTEM {
// Open a directory iterator for 'dirPath' (relative or drive-prefixed).
// Returns an opaque per-iteration driver cookie in *dirCtx.
KSTATUS (*OpenDir)(struct IO_FILESYSTEM* fs,
const char* dirPath, void** dirCtx);
SYS_STRING_VIEW dirPath, void** dirCtx);
// Advance to the next entry.
// Fills 'out' with name, attributes, and size.
@@ -153,7 +154,7 @@ __declspec(dllexport) KSTATUS IoRegisterFilesystem(uint8_t driveIndex, IO_FILESY
// ---------------------------------------------------------------------------
// Kernel-side API
// ---------------------------------------------------------------------------
__declspec(dllexport) KSTATUS IoOpenFile(const char* path, FILE_OBJECT **out);
__declspec(dllexport) KSTATUS IoOpenFile(SYS_STRING_VIEW path, FILE_OBJECT **out);
__declspec(dllexport) KSTATUS IoReadFile(FILE_OBJECT* file, void* buf,
size_t size, size_t* bytesRead);
__declspec(dllexport) KSTATUS IoReadFileAt(FILE_OBJECT* file, uint64_t offset,
@@ -175,11 +176,11 @@ __declspec(dllexport) OBJECT* IoAsyncFileRequestObject(IO_ASYNC_FILE_REQUEST_OB
__declspec(dllexport) KSTATUS IoCancelAsyncFileRequest(IO_ASYNC_FILE_REQUEST_OBJECT* request);
__declspec(dllexport) KSTATUS IoQueryAsyncFileRequest(IO_ASYNC_FILE_REQUEST_OBJECT* request,
IO_STATUS_BLOCK* iosbOut);
__declspec(dllexport) KSTATUS IoCreateFile (const char* path, FILE_OBJECT** out);
__declspec(dllexport) KSTATUS IoDeleteFile (const char* path);
__declspec(dllexport) KSTATUS IoRenameFile (const char* oldPath, const char* newPath);
__declspec(dllexport) KSTATUS IoCreateDir (const char* path);
__declspec(dllexport) KSTATUS IoRemoveDir (const char* path);
__declspec(dllexport) KSTATUS IoCreateFile (SYS_STRING_VIEW path, FILE_OBJECT** out);
__declspec(dllexport) KSTATUS IoDeleteFile (SYS_STRING_VIEW path);
__declspec(dllexport) KSTATUS IoRenameFile (SYS_STRING_VIEW oldPath, SYS_STRING_VIEW newPath);
__declspec(dllexport) KSTATUS IoCreateDir (SYS_STRING_VIEW path);
__declspec(dllexport) KSTATUS IoRemoveDir (SYS_STRING_VIEW path);
__declspec(dllexport) KSTATUS IoTruncateFile(FILE_OBJECT* file, uint64_t newSize);
__declspec(dllexport) KSTATUS IoSeekFile(FILE_OBJECT* file, uint64_t offset);
__declspec(dllexport) uint64_t IoGetFileSize(FILE_OBJECT* file);
@@ -188,12 +189,12 @@ __declspec(dllexport) void IoCloseFile(FILE_OBJECT* file);
// ---------------------------------------------------------------------------
// Directory enumeration API
// ---------------------------------------------------------------------------
__declspec(dllexport) KSTATUS IoOpenDir (const char* dirPath, DIR_OBJECT** out);
__declspec(dllexport) KSTATUS IoOpenDir (SYS_STRING_VIEW dirPath, DIR_OBJECT** out);
__declspec(dllexport) KSTATUS IoReadDir (DIR_OBJECT* dir, KDIR_ENTRY* entryOut);
__declspec(dllexport) void IoCloseDir(DIR_OBJECT* dir);
// ---------------------------------------------------------------------------
// Current Working Directory
// ---------------------------------------------------------------------------
__declspec(dllexport) KSTATUS IoSetCwd(const char* path);
__declspec(dllexport) KSTATUS IoSetCwd(SYS_STRING_VIEW path);
__declspec(dllexport) KSTATUS IoGetCwd(char* buf, size_t size);