fileio-win32.cpp@ 1581

Last change on this file since 1581 was 1581, checked in by vboxsync, 18 years ago
r=bird: Too verbose comments that just repeated the code (fixed).
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 22.3 KB

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1	/* $Id: fileio-win32.cpp 1581 2007-03-20 20:21:21Z vboxsync $ */
2	/** @file
3	* InnoTek Portable Runtime - File I/O, native implementation for the Windows host platform.
4	*/
5
6	/*
7	* Copyright (C) 2006 InnoTek Systemberatung GmbH
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License as published by the Free Software Foundation,
13	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14	* distribution. VirtualBox OSE is distributed in the hope that it will
15	* be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* If you received this file as part of a commercial VirtualBox
18	* distribution, then only the terms of your commercial VirtualBox
19	* license agreement apply instead of the previous paragraph.
20	*/
21
22
23	/*******************************************************************************
24	* Header Files *
25	*******************************************************************************/
26	#define LOG_GROUP RTLOGGROUP_DIR
27	#include <Windows.h>
28
29	#include <iprt/file.h>
30	#include <iprt/path.h>
31	#include <iprt/assert.h>
32	#include <iprt/string.h>
33	#include <iprt/err.h>
34	#include <iprt/log.h>
35	#include "internal/file.h"
36	#include "internal/fs.h"
37	#include "internal/path.h"
38
39
40	/*******************************************************************************
41	* Defined Constants And Macros *
42	*******************************************************************************/
43	/** @def RT_DONT_CONVERT_FILENAMES
44	* Define this to pass UTF-8 unconverted to the kernel. */
45	#ifdef __DOXYGEN__
46	# define RT_DONT_CONVERT_FILENAMES 1
47	#endif
48
49
50	/**
51	* This is wrapper around the ugly SetFilePointer api.
52	*
53	* It's equivalent to SetFilePointerEx which we so unfortunately cannot use because of
54	* it not being present in NT4 GA.
55	*
56	* @returns Success indicator. Extended error information obtainable using GetLastError().
57	* @param File Filehandle.
58	* @param offSeek Offset to seek.
59	* @param poffNew Where to store the new file offset. NULL allowed.
60	* @param uMethod Seek method. (The windows one!)
61	*/
62	inline bool MySetFilePointer(RTFILE File, uint64_t offSeek, uint64_t *poffNew, unsigned uMethod)
63	{
64	LARGE_INTEGER off;
65	off.QuadPart = offSeek;
66	#if 1
67	off.LowPart = SetFilePointer((HANDLE)File, off.LowPart, &off.HighPart, uMethod);
68	bool fRc = off.LowPart != INVALID_SET_FILE_POINTER;
69	#else
70	bool fRc = SetFilePointerEx((HANDLE)File, off, &off, uMethod);
71	#endif
72	if (fRc && poffNew)
73	*poffNew = off.QuadPart;
74	return fRc;
75	}
76
77
78	/**
79	* This is a helper to check if an attempt was made to grow a file beyond the
80	* limit of the filesystem.
81	*
82	* @returns true for file size limit exceeded.
83	* @param File Filehandle.
84	* @param offSeek Offset to seek.
85	*/
86	DECLINLINE(bool) IsBeyondLimit(RTFILE File, uint64_t offSeek, unsigned uMethod)
87	{
88	bool fIsBeyondLimit = false;
89
90	/*
91	* Get the current file position and try set the new one.
92	* If it fails with a seek error it's because we hit the file system limit.
93	*/
94	uint64_t offCurrent;
95	if (MySetFilePointer(File, 0, &offCurrent, FILE_CURRENT))
96	{
97	if (!MySetFilePointer(File, offSeek, NULL, uMethod))
98	fIsBeyondLimit = GetLastError() == ERROR_SEEK;
99	else /* Restore file pointer on success. */
100	MySetFilePointer(File, offCurrent, NULL, FILE_BEGIN);
101	}
102
103	return fIsBeyondLimit;
104	}
105
106
107	RTR3DECL(int) RTFileOpen(PRTFILE pFile, const char *pszFilename, unsigned fOpen)
108	{
109	/*
110	* Validate input.
111	*/
112	if (!pFile)
113	{
114	AssertMsgFailed(("Invalid pFile\n"));
115	return VERR_INVALID_PARAMETER;
116	}
117	*pFile = NIL_RTFILE;
118	if (!pszFilename)
119	{
120	AssertMsgFailed(("Invalid pszFilename\n"));
121	return VERR_INVALID_PARAMETER;
122	}
123
124	/*
125	* Merge forced open flags and validate them.
126	*/
127	int rc = rtFileRecalcAndValidateFlags(&fOpen);
128	if (RT_FAILURE(rc))
129	return rc;
130
131	/*
132	* Determine disposition, access, share mode, creation flags, and security attributes
133	* for the CreateFile API call.
134	*/
135	DWORD dwCreationDisposition;
136	switch (fOpen & RTFILE_O_ACTION_MASK)
137	{
138	case RTFILE_O_OPEN:
139	dwCreationDisposition = fOpen & RTFILE_O_TRUNCATE ? TRUNCATE_EXISTING : OPEN_EXISTING;
140	break;
141	case RTFILE_O_OPEN_CREATE:
142	dwCreationDisposition = OPEN_ALWAYS;
143	break;
144	case RTFILE_O_CREATE:
145	dwCreationDisposition = CREATE_NEW;
146	break;
147	case RTFILE_O_CREATE_REPLACE:
148	dwCreationDisposition = CREATE_ALWAYS;
149	break;
150	default:
151	AssertMsgFailed(("Impossible fOpen=%#x\n", fOpen));
152	return VERR_INVALID_PARAMETER;
153	}
154
155	DWORD dwDesiredAccess;
156	switch (fOpen & RTFILE_O_ACCESS_MASK)
157	{
158	case RTFILE_O_READ: dwDesiredAccess = GENERIC_READ; break;
159	case RTFILE_O_WRITE: dwDesiredAccess = GENERIC_WRITE; break;
160	case RTFILE_O_READWRITE: dwDesiredAccess = GENERIC_READ \| GENERIC_WRITE; break;
161	default:
162	AssertMsgFailed(("Impossible fOpen=%#x\n", fOpen));
163	return VERR_INVALID_PARAMETER;
164	}
165
166	DWORD dwShareMode;
167	Assert(RTFILE_O_DENY_READWRITE == RTFILE_O_DENY_ALL && !RTFILE_O_DENY_NONE);
168	switch (fOpen & RTFILE_O_DENY_MASK)
169	{
170	case RTFILE_O_DENY_NONE: dwShareMode = FILE_SHARE_READ \| FILE_SHARE_WRITE; break;
171	case RTFILE_O_DENY_READ: dwShareMode = FILE_SHARE_WRITE; break;
172	case RTFILE_O_DENY_WRITE: dwShareMode = FILE_SHARE_READ; break;
173	case RTFILE_O_DENY_READWRITE: dwShareMode = 0; break;
174
175	case RTFILE_O_DENY_NOT_DELETE \| RTFILE_O_DENY_NONE: dwShareMode = FILE_SHARE_DELETE \| FILE_SHARE_READ \| FILE_SHARE_WRITE; break;
176	case RTFILE_O_DENY_NOT_DELETE \| RTFILE_O_DENY_READ: dwShareMode = FILE_SHARE_DELETE \| FILE_SHARE_WRITE; break;
177	case RTFILE_O_DENY_NOT_DELETE \| RTFILE_O_DENY_WRITE: dwShareMode = FILE_SHARE_DELETE \| FILE_SHARE_READ; break;
178	case RTFILE_O_DENY_NOT_DELETE \| RTFILE_O_DENY_READWRITE:dwShareMode = FILE_SHARE_DELETE; break;
179	default:
180	AssertMsgFailed(("Impossible fOpen=%#x\n", fOpen));
181	return VERR_INVALID_PARAMETER;
182	}
183
184	SECURITY_ATTRIBUTES SecurityAttributes;
185	PSECURITY_ATTRIBUTES pSecurityAttributes = NULL;
186	if (fOpen & RTFILE_O_INHERIT)
187	{
188	SecurityAttributes.nLength = sizeof(SecurityAttributes);
189	SecurityAttributes.lpSecurityDescriptor = NULL;
190	SecurityAttributes.bInheritHandle = TRUE;
191	pSecurityAttributes = &SecurityAttributes;
192	}
193
194	DWORD dwFlagsAndAttributes;
195	dwFlagsAndAttributes = FILE_ATTRIBUTE_NORMAL;
196	if (fOpen & RTFILE_O_WRITE_THROUGH)
197	dwFlagsAndAttributes \|= FILE_FLAG_WRITE_THROUGH;
198
199	/*
200	* Open/Create the file.
201	*/
202	#ifdef RT_DONT_CONVERT_FILENAMES
203	HANDLE hFile = CreateFile(pszFilename,
204	dwDesiredAccess,
205	dwShareMode,
206	pSecurityAttributes,
207	dwCreationDisposition,
208	dwFlagsAndAttributes,
209	NULL);
210	if (hFile == INVALID_HANDLE_VALUE)
211	return RTErrConvertFromWin32(GetLastError());
212
213	#else
214	PRTUCS2 pwszFilename;
215	rc = RTStrToUtf16(pszFilename, &pwszFilename);
216	if (RT_FAILURE(rc))
217	return rc;
218
219	HANDLE hFile = CreateFileW(pwszFilename,
220	dwDesiredAccess,
221	dwShareMode,
222	pSecurityAttributes,
223	dwCreationDisposition,
224	dwFlagsAndAttributes,
225	NULL);
226	if (hFile == INVALID_HANDLE_VALUE)
227	{
228	rc = RTErrConvertFromWin32(GetLastError()); /* get error first! */
229	RTUtf16Free(pwszFilename);
230	return rc;
231	}
232	RTUtf16Free(pwszFilename);
233	#endif
234
235	/*
236	* Do we need to truncate the file?
237	*/
238	if ( (fOpen & (RTFILE_O_TRUNCATE \| RTFILE_O_ACTION_MASK))
239	== (RTFILE_O_TRUNCATE \| RTFILE_O_OPEN_CREATE))
240	{
241	if (!SetEndOfFile(hFile))
242	{
243	rc = RTErrConvertFromWin32(GetLastError()); /* get error first! */
244	CloseHandle(hFile);
245	return rc;
246	}
247	}
248
249	*pFile = (RTFILE)hFile;
250	Assert((HANDLE)*pFile == hFile);
251	return VINF_SUCCESS;
252	}
253
254
255	RTR3DECL(int) RTFileClose(RTFILE File)
256	{
257	if (CloseHandle((HANDLE)File))
258	return VINF_SUCCESS;
259	return RTErrConvertFromWin32(GetLastError());
260	}
261
262
263	RTR3DECL(int) RTFileSeek(RTFILE File, int64_t offSeek, unsigned uMethod, uint64_t *poffActual)
264	{
265	static ULONG aulSeekRecode[] =
266	{
267	FILE_BEGIN,
268	FILE_CURRENT,
269	FILE_END,
270	};
271
272	/*
273	* Validate input.
274	*/
275	if (uMethod > RTFILE_SEEK_END)
276	{
277	AssertMsgFailed(("Invalid uMethod=%d\n", uMethod));
278	return VERR_INVALID_PARAMETER;
279	}
280
281	/*
282	* Execute the seek.
283	*/
284	if (MySetFilePointer(File, offSeek, poffActual, aulSeekRecode[uMethod]))
285	return VINF_SUCCESS;
286	return RTErrConvertFromWin32(GetLastError());
287	}
288
289
290	RTR3DECL(int) RTFileRead(RTFILE File, void pvBuf, unsigned cbToRead, unsigned pcbRead)
291	{
292	if (cbToRead <= 0)
293	return VINF_SUCCESS;
294
295	ULONG cbRead = 0;
296	if (ReadFile((HANDLE)File, pvBuf, cbToRead, &cbRead, NULL))
297	{
298	if (pcbRead)
299	/* Caller can handle partial reads. */
300	*pcbRead = cbRead;
301	else
302	{
303	/* Caller expects everything to be read. */
304	while (cbToRead > cbRead)
305	{
306	ULONG cbReadPart = 0;
307	if (!ReadFile((HANDLE)File, (char*)pvBuf + cbRead, cbToRead - cbRead, &cbReadPart, NULL))
308	return RTErrConvertFromWin32(GetLastError());
309	if (cbReadPart == 0)
310	return VERR_EOF;
311	cbRead += cbReadPart;
312	}
313	}
314	return VINF_SUCCESS;
315	}
316	return RTErrConvertFromWin32(GetLastError());
317	}
318
319
320	RTR3DECL(int) RTFileWrite(RTFILE File, const void pvBuf, unsigned cbToWrite, unsigned pcbWritten)
321	{
322	if (cbToWrite <= 0)
323	return VINF_SUCCESS;
324
325	ULONG cbWritten = 0;
326	if (WriteFile((HANDLE)File, pvBuf, cbToWrite, &cbWritten, NULL))
327	{
328	if (pcbWritten)
329	/* Caller can handle partial writes. */
330	*pcbWritten = cbWritten;
331	else
332	{
333	/* Caller expects everything to be written. */
334	while (cbToWrite > cbWritten)
335	{
336	ULONG cbWrittenPart = 0;
337	if (!WriteFile((HANDLE)File, (char*)pvBuf + cbWritten, cbToWrite - cbWritten, &cbWrittenPart, NULL))
338	{
339	int rc = RTErrConvertFromWin32(GetLastError());
340	if ( rc == VERR_DISK_FULL
341	&& IsBeyondLimit(File, cbToWrite - cbWritten, FILE_CURRENT)
342	)
343	rc = VERR_FILE_TOO_BIG;
344	return rc;
345	}
346	if (cbWrittenPart == 0)
347	return VERR_WRITE_ERROR;
348	cbWritten += cbWrittenPart;
349	}
350	}
351	return VINF_SUCCESS;
352	}
353	int rc = RTErrConvertFromWin32(GetLastError());
354	if ( rc == VERR_DISK_FULL
355	&& IsBeyondLimit(File, cbToWrite - cbWritten, FILE_CURRENT)
356	)
357	rc = VERR_FILE_TOO_BIG;
358	return rc;
359	}
360
361
362	RTR3DECL(int) RTFileFlush(RTFILE File)
363	{
364	int rc;
365
366	if (FlushFileBuffers((HANDLE)File) == FALSE)
367	{
368	rc = GetLastError();
369	Log(("FlushFileBuffers failed with %d\n", rc));
370	return RTErrConvertFromWin32(rc);
371	}
372	return VINF_SUCCESS;
373	}
374
375
376	RTR3DECL(int) RTFileSetSize(RTFILE File, uint64_t cbSize)
377	{
378	/*
379	* Get current file pointer.
380	*/
381	int rc;
382	uint64_t offCurrent;
383	if (MySetFilePointer(File, 0, &offCurrent, FILE_CURRENT))
384	{
385	/*
386	* Set new file pointer.
387	*/
388	if (MySetFilePointer(File, cbSize, NULL, FILE_BEGIN))
389	{
390	/* file pointer setted */
391	if (SetEndOfFile((HANDLE)File))
392	{
393	/*
394	* Restore file pointer and return.
395	* If the old pointer was beyond the new file end, ignore failure.
396	*/
397	if ( MySetFilePointer(File, offCurrent, NULL, FILE_BEGIN)
398	\|\| offCurrent > cbSize)
399	return VINF_SUCCESS;
400	}
401
402	/*
403	* Failed, try restore file pointer.
404	*/
405	rc = GetLastError();
406	MySetFilePointer(File, offCurrent, NULL, FILE_BEGIN);
407	}
408	else
409	rc = GetLastError();
410	}
411	else
412	rc = GetLastError();
413
414	return RTErrConvertFromWin32(rc);
415	}
416
417
418	RTR3DECL(int) RTFileGetSize(RTFILE File, uint64_t *pcbSize)
419	{
420	ULARGE_INTEGER Size;
421	Size.LowPart = GetFileSize((HANDLE)File, &Size.HighPart);
422	if (Size.LowPart != INVALID_FILE_SIZE)
423	{
424	*pcbSize = Size.QuadPart;
425	return VINF_SUCCESS;
426	}
427
428	/* error exit */
429	return RTErrConvertFromWin32(GetLastError());
430	}
431
432
433	RTR3DECL(bool) RTFileIsValid(RTFILE File)
434	{
435	if (File != NIL_RTFILE)
436	{
437	DWORD dwType = GetFileType((HANDLE)File);
438	switch (dwType)
439	{
440	case FILE_TYPE_CHAR:
441	case FILE_TYPE_DISK:
442	case FILE_TYPE_PIPE:
443	case FILE_TYPE_REMOTE:
444	return true;
445
446	case FILE_TYPE_UNKNOWN:
447	if (GetLastError() == NO_ERROR)
448	return true;
449	break;
450	}
451	}
452	return false;
453	}
454
455
456	#define LOW_DWORD(u64) ((DWORD)u64)
457	#define HIGH_DWORD(u64) (((DWORD *)&u64)[1])
458
459	RTR3DECL(int) RTFileLock(RTFILE File, unsigned fLock, int64_t offLock, uint64_t cbLock)
460	{
461	Assert(offLock >= 0);
462
463	/* Check arguments. */
464	if (fLock & ~RTFILE_LOCK_MASK)
465	{
466	AssertMsgFailed(("Invalid fLock=%08X\n", fLock));
467	return VERR_INVALID_PARAMETER;
468	}
469
470	/* Prepare flags. */
471	Assert(RTFILE_LOCK_WRITE);
472	DWORD dwFlags = (fLock & RTFILE_LOCK_WRITE) ? LOCKFILE_EXCLUSIVE_LOCK : 0;
473	Assert(RTFILE_LOCK_WAIT);
474	if (!(fLock & RTFILE_LOCK_WAIT))
475	dwFlags \|= LOCKFILE_FAIL_IMMEDIATELY;
476
477	/* Windows structure. */
478	OVERLAPPED Overlapped;
479	memset(&Overlapped, 0, sizeof(Overlapped));
480	Overlapped.Offset = LOW_DWORD(offLock);
481	Overlapped.OffsetHigh = HIGH_DWORD(offLock);
482
483	/* Note: according to Microsoft, LockFileEx API call is available starting from NT 3.5 */
484	if (LockFileEx((HANDLE)File, dwFlags, 0, LOW_DWORD(cbLock), HIGH_DWORD(cbLock), &Overlapped))
485	return VINF_SUCCESS;
486
487	return RTErrConvertFromWin32(GetLastError());
488	}
489
490
491	RTR3DECL(int) RTFileChangeLock(RTFILE File, unsigned fLock, int64_t offLock, uint64_t cbLock)
492	{
493	Assert(offLock >= 0);
494
495	/* Check arguments. */
496	if (fLock & ~RTFILE_LOCK_MASK)
497	{
498	AssertMsgFailed(("Invalid fLock=%08X\n", fLock));
499	return VERR_INVALID_PARAMETER;
500	}
501
502	/* Remove old lock. */
503	int rc = RTFileUnlock(File, offLock, cbLock);
504	if (RT_FAILURE(rc))
505	return rc;
506
507	/* Set new lock. */
508	rc = RTFileLock(File, fLock, offLock, cbLock);
509	if (RT_SUCCESS(rc))
510	return rc;
511
512	/* Try to restore old lock. */
513	unsigned fLockOld = (fLock & RTFILE_LOCK_WRITE) ? fLock & ~RTFILE_LOCK_WRITE : fLock \| RTFILE_LOCK_WRITE;
514	rc = RTFileLock(File, fLockOld, offLock, cbLock);
515	if (RT_SUCCESS(rc))
516	return VERR_FILE_LOCK_VIOLATION;
517	else
518	return VERR_FILE_LOCK_LOST;
519	}
520
521
522	RTR3DECL(int) RTFileUnlock(RTFILE File, int64_t offLock, uint64_t cbLock)
523	{
524	Assert(offLock >= 0);
525
526	if (UnlockFile((HANDLE)File, LOW_DWORD(offLock), HIGH_DWORD(offLock), LOW_DWORD(cbLock), HIGH_DWORD(cbLock)))
527	return VINF_SUCCESS;
528
529	return RTErrConvertFromWin32(GetLastError());
530	}
531
532
533
534	RTR3DECL(int) RTFileQueryInfo(RTFILE File, PRTFSOBJINFO pObjInfo, RTFSOBJATTRADD enmAdditionalAttribs)
535	{
536	/*
537	* Validate input.
538	*/
539	if (File == NIL_RTFILE)
540	{
541	AssertMsgFailed(("Invalid File=%RTfile\n", File));
542	return VERR_INVALID_PARAMETER;
543	}
544	if (!pObjInfo)
545	{
546	AssertMsgFailed(("Invalid pObjInfo=%p\n", pObjInfo));
547	return VERR_INVALID_PARAMETER;
548	}
549	if ( enmAdditionalAttribs < RTFSOBJATTRADD_NOTHING
550	\|\| enmAdditionalAttribs > RTFSOBJATTRADD_LAST)
551	{
552	AssertMsgFailed(("Invalid enmAdditionalAttribs=%p\n", enmAdditionalAttribs));
553	return VERR_INVALID_PARAMETER;
554	}
555
556	/*
557	* Query file info.
558	*/
559	BY_HANDLE_FILE_INFORMATION Data;
560	if (!GetFileInformationByHandle((HANDLE)File, &Data))
561	return RTErrConvertFromWin32(GetLastError());
562
563	/*
564	* Setup the returned data.
565	*/
566	pObjInfo->cbObject = ((uint64_t)Data.nFileSizeHigh << 32)
567	\| (uint64_t)Data.nFileSizeLow;
568	pObjInfo->cbAllocated = pObjInfo->cbObject;
569
570	Assert(sizeof(uint64_t) == sizeof(Data.ftCreationTime));
571	RTTimeSpecSetNtTime(&pObjInfo->BirthTime, (uint64_t )&Data.ftCreationTime);
572	RTTimeSpecSetNtTime(&pObjInfo->AccessTime, (uint64_t )&Data.ftLastAccessTime);
573	RTTimeSpecSetNtTime(&pObjInfo->ModificationTime, (uint64_t )&Data.ftLastWriteTime);
574	pObjInfo->ChangeTime = pObjInfo->ModificationTime;
575
576	pObjInfo->Attr.fMode = rtFsModeFromDos((Data.dwFileAttributes << RTFS_DOS_SHIFT) & RTFS_DOS_MASK_NT, "", 0);
577
578	/*
579	* Requested attributes (we cannot provide anything actually).
580	*/
581	switch (enmAdditionalAttribs)
582	{
583	case RTFSOBJATTRADD_EASIZE:
584	pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_EASIZE;
585	pObjInfo->Attr.u.EASize.cb = 0;
586	break;
587
588	case RTFSOBJATTRADD_UNIX:
589	pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_UNIX;
590	pObjInfo->Attr.u.Unix.uid = ~0U;
591	pObjInfo->Attr.u.Unix.gid = ~0U;
592	pObjInfo->Attr.u.Unix.cHardlinks = Data.nNumberOfLinks ? Data.nNumberOfLinks : 1;
593	pObjInfo->Attr.u.Unix.INodeIdDevice = 0;
594	pObjInfo->Attr.u.Unix.INodeId = 0;
595	pObjInfo->Attr.u.Unix.fFlags = 0;
596	pObjInfo->Attr.u.Unix.GenerationId = 0;
597	pObjInfo->Attr.u.Unix.Device = 0;
598	break;
599
600	case RTFSOBJATTRADD_NOTHING:
601	pObjInfo->Attr.enmAdditional = RTFSOBJATTRADD_NOTHING;
602	break;
603
604	default:
605	AssertMsgFailed(("Impossible!\n"));
606	return VERR_INTERNAL_ERROR;
607	}
608
609	return VINF_SUCCESS;
610	}
611
612
613	RTR3DECL(int) RTFileSetTimes(RTFILE File, PCRTTIMESPEC pAccessTime, PCRTTIMESPEC pModificationTime,
614	PCRTTIMESPEC pChangeTime, PCRTTIMESPEC pBirthTime)
615	{
616	if (!pAccessTime && !pModificationTime && !pBirthTime)
617	return VINF_SUCCESS; /* NOP */
618
619	FILETIME CreationTimeFT;
620	PFILETIME pCreationTimeFT = NULL;
621	if (pBirthTime)
622	pCreationTimeFT = RTTimeSpecGetNtFileTime(pBirthTime, &CreationTimeFT);
623
624	FILETIME LastAccessTimeFT;
625	PFILETIME pLastAccessTimeFT = NULL;
626	if (pAccessTime)
627	pLastAccessTimeFT = RTTimeSpecGetNtFileTime(pAccessTime, &LastAccessTimeFT);
628
629	FILETIME LastWriteTimeFT;
630	PFILETIME pLastWriteTimeFT = NULL;
631	if (pModificationTime)
632	pLastWriteTimeFT = RTTimeSpecGetNtFileTime(pModificationTime, &LastWriteTimeFT);
633
634	int rc = VINF_SUCCESS;
635	if (!SetFileTime((HANDLE)File, pCreationTimeFT, pLastAccessTimeFT, pLastWriteTimeFT))
636	{
637	DWORD Err = GetLastError();
638	rc = RTErrConvertFromWin32(Err);
639	Log(("RTFileSetTimes(%RTfile, %p, %p, %p, %p): SetFileTime failed with lasterr %d (%Vrc)\n",
640	File, pAccessTime, pModificationTime, pChangeTime, pBirthTime, Err, rc));
641	}
642	return rc;
643	}
644
645
646	RTR3DECL(int) RTFileSetMode(RTFILE File, RTFMODE fMode)
647	{
648	/** @todo darn. this needs a full path; probably must be done if the file is closed
649	* It's quite possible that there is an NT API for this. NtSetInformationFile() for instance. */
650	return VINF_SUCCESS;
651	}
652
653
654	RTR3DECL(int) RTFileDelete(const char *pszFilename)
655	{
656	#ifdef RT_DONT_CONVERT_FILENAMES
657	if (DeleteFile(pszFilename))
658	return VINF_SUCCESS;
659	return RTErrConvertFromWin32(GetLastError());
660
661	#else
662	PRTUTF16 pwszFilename;
663	int rc = RTStrToUtf16(pszFilename, &pwszFilename);
664	if (RT_SUCCESS(rc))
665	{
666	if (!DeleteFileW(pwszFilename))
667	rc = RTErrConvertFromWin32(GetLastError());
668	RTUtf16Free(pwszFilename);
669	}
670
671	return rc;
672	#endif
673	}
674
675
676	RTDECL(int) RTFileRename(const char pszSrc, const char pszDst, unsigned fRename)
677	{
678	/*
679	* Validate input.
680	*/
681	AssertMsgReturn(VALID_PTR(pszSrc), ("%p\n", pszSrc), VERR_INVALID_POINTER);
682	AssertMsgReturn(VALID_PTR(pszDst), ("%p\n", pszDst), VERR_INVALID_POINTER);
683	AssertMsgReturn(!(fRename & ~RTPATHRENAME_FLAGS_REPLACE), ("%#x\n", fRename), VERR_INVALID_PARAMETER);
684
685	/*
686	* Hand it on to the worker.
687	*/
688	int rc = rtPathWin32MoveRename(pszSrc, pszDst,
689	fRename & RTPATHRENAME_FLAGS_REPLACE ? MOVEFILE_REPLACE_EXISTING : 0,
690	RTFS_TYPE_FILE);
691
692	LogFlow(("RTFileMove(%p:{%s}, %p:{%s}, %#x): returns %Rrc\n",
693	pszSrc, pszSrc, pszDst, pszDst, fRename, rc));
694	return rc;
695
696	}
697
698
699	RTDECL(int) RTFileMove(const char pszSrc, const char pszDst, unsigned fMove)
700	{
701	/*
702	* Validate input.
703	*/
704	AssertMsgReturn(VALID_PTR(pszSrc), ("%p\n", pszSrc), VERR_INVALID_POINTER);
705	AssertMsgReturn(VALID_PTR(pszDst), ("%p\n", pszDst), VERR_INVALID_POINTER);
706	AssertMsgReturn(!(fMove & ~RTFILEMOVE_FLAGS_REPLACE), ("%#x\n", fMove), VERR_INVALID_PARAMETER);
707
708	/*
709	* Hand it on to the worker.
710	*/
711	int rc = rtPathWin32MoveRename(pszSrc, pszDst,
712	fMove & RTFILEMOVE_FLAGS_REPLACE
713	? MOVEFILE_COPY_ALLOWED \| MOVEFILE_REPLACE_EXISTING
714	: MOVEFILE_COPY_ALLOWED,
715	RTFS_TYPE_FILE);
716
717	LogFlow(("RTFileMove(%p:{%s}, %p:{%s}, %#x): returns %Rrc\n",
718	pszSrc, pszSrc, pszDst, pszDst, fMove, rc));
719	return rc;
720	}
721

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source: vbox/trunk/src/VBox/Runtime/r3/win32/fileio-win32.cpp@ 1581

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