168 lines
3 KiB
C++
168 lines
3 KiB
C++
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#include "ulib.hxx"
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#include "fileio.hxx"
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#include "diskedit.h"
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extern "C" {
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#include <stdio.h>
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}
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STATIC TCHAR FilePath[MAX_PATH];
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BOOLEAN
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FILE_IO::Setup(
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IN PMEM Mem,
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IN PLOG_IO_DP_DRIVE Drive,
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IN HANDLE Application,
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IN HWND WindowHandle,
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OUT PBOOLEAN Error
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)
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{
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FARPROC proc;
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proc = MakeProcInstance((FARPROC) ReadTheFile, Application);
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if (!DialogBox((HINSTANCE)Application, TEXT("ReadFileBox"),
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WindowHandle, (DLGPROC) proc)) {
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*Error = FALSE;
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return FALSE;
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}
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FreeProcInstance(proc);
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*Error = TRUE;
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_file_handle = CreateFile(FilePath, GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ, NULL, OPEN_ALWAYS,
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FILE_ATTRIBUTE_NORMAL, NULL);
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if (_file_handle == INVALID_HANDLE_VALUE) {
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return FALSE;
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}
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if (!_buffer_size) {
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_buffer_size = GetFileSize(_file_handle, NULL);
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}
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if (_buffer_size == (ULONG) -1) {
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return FALSE;
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}
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_buffer = Mem->Acquire(_buffer_size, Drive->QueryAlignmentMask());
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if (!_buffer) {
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return FALSE;
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}
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swprintf(_header_text, TEXT("%s"), FilePath);
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return TRUE;
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}
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BOOLEAN
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FILE_IO::Read(
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OUT PULONG pError
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)
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{
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DWORD bytes_read;
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*pError = 0;
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if (_file_handle == INVALID_HANDLE_VALUE) {
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return FALSE;
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}
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if (SetFilePointer(_file_handle, 0, NULL, FILE_BEGIN) == (DWORD) -1) {
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return FALSE;
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}
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if (!ReadFile(_file_handle, _buffer, _buffer_size, &bytes_read, NULL) ||
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bytes_read != _buffer_size) {
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return FALSE;
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}
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return TRUE;
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}
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BOOLEAN
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FILE_IO::Write(
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)
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{
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DWORD bytes_written;
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if (_file_handle == INVALID_HANDLE_VALUE) {
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return FALSE;
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}
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if (SetFilePointer(_file_handle, 0, NULL, FILE_BEGIN) == (DWORD) -1) {
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return FALSE;
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}
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if (!WriteFile(_file_handle, _buffer, _buffer_size, &bytes_written, NULL) ||
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bytes_written != _buffer_size) {
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return FALSE;
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}
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if (!SetEndOfFile(_file_handle)) {
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return FALSE;
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}
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return TRUE;
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}
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PVOID
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FILE_IO::GetBuf(
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OUT PULONG Size
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)
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{
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if (Size) {
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*Size = _buffer_size;
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}
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return _buffer;
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}
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PTCHAR
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FILE_IO::GetHeaderText(
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)
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{
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return _header_text;
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}
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BOOL
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ReadTheFile(
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IN HWND hDlg,
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IN UINT message,
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IN UINT wParam,
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IN LONG lParam
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)
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{
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switch (message) {
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case WM_INITDIALOG:
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return TRUE;
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case WM_COMMAND:
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if (LOWORD(wParam) == IDCANCEL) {
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EndDialog(hDlg, FALSE);
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return TRUE;
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}
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if (LOWORD(wParam) == IDOK) {
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INT n;
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n = GetDlgItemText(hDlg, IDTEXT, FilePath, sizeof(FilePath)/sizeof(TCHAR));
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FilePath[n] = 0;
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EndDialog(hDlg, TRUE);
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return TRUE;
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}
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break;
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}
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return FALSE;
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}
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