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Overlapped I/O support (fixes ProDG compilers)

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This commit is contained in:
Luke Street
2025-09-29 23:32:17 -06:00
parent cb154f3118
commit 62d8daccac
15 changed files with 767 additions and 124 deletions
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69
dll/ntdll.cpp
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@@ -1,8 +1,11 @@
#include "common.h"
#include "errors.h"
#include "files.h"
#include <sys/mman.h>
#include <optional>
#define PIO_APC_ROUTINE void *
typedef struct _IO_STATUS_BLOCK {
@@ -13,6 +16,11 @@ typedef struct _IO_STATUS_BLOCK {
ULONG_PTR Information;
} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;
namespace kernel32 {
BOOL WIN_FUNC SetEvent(HANDLE hEvent);
BOOL WIN_FUNC ResetEvent(HANDLE hEvent);
} // namespace kernel32
namespace ntdll {
NTSTATUS WIN_FUNC NtReadFile(HANDLE FileHandle, HANDLE Event, PIO_APC_ROUTINE ApcRoutine, PVOID ApcContext,
@@ -20,34 +28,55 @@ NTSTATUS WIN_FUNC NtReadFile(HANDLE FileHandle, HANDLE Event, PIO_APC_ROUTINE Ap
PULONG Key) {
DEBUG_LOG("NtReadFile(%p, %p, %p, %p, %p, %p, %u, %p, %p) ", FileHandle, Event, ApcRoutine, ApcContext,
IoStatusBlock, Buffer, Length, ByteOffset, Key);
assert(Event == nullptr);
assert(ApcRoutine == nullptr);
assert(ApcContext == nullptr);
assert(ByteOffset == nullptr);
assert(Key == nullptr);
(void)ApcRoutine;
(void)ApcContext;
(void)Key;
wibo::lastError = 0;
FILE *fp = files::fpFromHandle(FileHandle);
if (!fp) {
if (!IoStatusBlock) {
wibo::lastError = ERROR_INVALID_PARAMETER;
return STATUS_INVALID_PARAMETER;
}
auto file = files::fileHandleFromHandle(FileHandle);
if (!file || !file->fp) {
wibo::lastError = ERROR_INVALID_HANDLE;
IoStatusBlock->Status = STATUS_INVALID_HANDLE;
IoStatusBlock->Information = 0;
return STATUS_INVALID_HANDLE;
}
size_t read = fread(Buffer, 1, Length, fp);
bool handleOverlapped = (file->flags & FILE_FLAG_OVERLAPPED) != 0;
std::optional<uint64_t> offset;
bool updateFilePointer = !handleOverlapped;
if (ByteOffset) {
offset = static_cast<uint64_t>(*ByteOffset);
} else if (handleOverlapped) {
updateFilePointer = false;
}
if (Event) {
kernel32::ResetEvent(Event);
}
auto io = files::read(file, Buffer, Length, offset, updateFilePointer);
DWORD winError = ERROR_SUCCESS;
NTSTATUS status = STATUS_SUCCESS;
if (read < Length) {
if (feof(fp)) {
wibo::lastError = ERROR_HANDLE_EOF;
status = STATUS_END_OF_FILE;
} else {
wibo::lastError = ERROR_READ_FAULT; // ?
status = STATUS_UNEXPECTED_IO_ERROR;
}
if (io.unixError != 0) {
winError = wibo::winErrorFromErrno(io.unixError);
status = wibo::statusFromWinError(winError);
} else if (io.reachedEnd && io.bytesTransferred == 0) {
winError = ERROR_HANDLE_EOF;
status = STATUS_END_OF_FILE;
}
if (IoStatusBlock) {
IoStatusBlock->Status = status;
IoStatusBlock->Information = read;
IoStatusBlock->Status = status;
IoStatusBlock->Information = static_cast<ULONG_PTR>(io.bytesTransferred);
wibo::lastError = winError;
if (Event) {
kernel32::SetEvent(Event);
}
DEBUG_LOG("-> 0x%x\n", status);
return status;
}