gecko-dev/xpcom/io/nsLocalFile.h

124 строки
4.3 KiB
C

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This Original Code has been modified by IBM Corporation. Modifications made by IBM
* described herein are Copyright (c) International Business Machines Corporation, 2000.
* Modifications to Mozilla code or documentation identified per MPL Section 3.3
*
* Date Modified by Description of modification
* 04/20/2000 IBM Corp. OS/2 build.
*/
#ifndef _NS_LOCAL_FILE_H_
#define _NS_LOCAL_FILE_H_
#include "nscore.h"
#define NS_LOCAL_FILE_CID {0x2e23e220, 0x60be, 0x11d3, {0x8c, 0x4a, 0x00, 0x00, 0x64, 0x65, 0x73, 0x74}}
#define NS_DECL_NSLOCALFILE_UNICODE_METHODS \
nsresult AppendUnicode(const char16_t *aNode); \
nsresult GetUnicodeLeafName(char16_t **aLeafName); \
nsresult SetUnicodeLeafName(const char16_t *aLeafName); \
nsresult CopyToUnicode(nsIFile *aNewParentDir, const char16_t *aNewLeafName); \
nsresult CopyToFollowingLinksUnicode(nsIFile *aNewParentDir, const char16_t *aNewLeafName); \
nsresult MoveToUnicode(nsIFile *aNewParentDir, const char16_t *aNewLeafName); \
nsresult GetUnicodeTarget(char16_t **aTarget); \
nsresult GetUnicodePath(char16_t **aPath); \
nsresult InitWithUnicodePath(const char16_t *aPath); \
nsresult AppendRelativeUnicodePath(const char16_t *aRelativePath);
// nsXPComInit needs to know about how we are implemented,
// so here we will export it. Other users should not depend
// on this.
#include <errno.h>
#include "nsILocalFile.h"
#ifdef XP_WIN
#include "nsLocalFileWin.h"
#elif defined(XP_UNIX)
#include "nsLocalFileUnix.h"
#else
#error NOT_IMPLEMENTED
#endif
#define NSRESULT_FOR_RETURN(ret) (((ret) < 0) ? NSRESULT_FOR_ERRNO() : NS_OK)
inline nsresult
nsresultForErrno(int err)
{
switch (err) {
case 0:
return NS_OK;
#ifdef EDQUOT
case EDQUOT: /* Quota exceeded */
// FALLTHROUGH to return NS_ERROR_FILE_DISK_FULL
#endif
case ENOSPC:
return NS_ERROR_FILE_DISK_FULL;
#ifdef EISDIR
case EISDIR: /* Is a directory. */
return NS_ERROR_FILE_IS_DIRECTORY;
#endif
case ENAMETOOLONG:
return NS_ERROR_FILE_NAME_TOO_LONG;
case ENOEXEC: /* Executable file format error. */
return NS_ERROR_FILE_EXECUTION_FAILED;
case ENOENT:
return NS_ERROR_FILE_TARGET_DOES_NOT_EXIST;
case ENOTDIR:
return NS_ERROR_FILE_DESTINATION_NOT_DIR;
#ifdef ELOOP
case ELOOP:
return NS_ERROR_FILE_UNRESOLVABLE_SYMLINK;
#endif /* ELOOP */
#ifdef ENOLINK
case ENOLINK:
return NS_ERROR_FILE_UNRESOLVABLE_SYMLINK;
#endif /* ENOLINK */
case EEXIST:
return NS_ERROR_FILE_ALREADY_EXISTS;
#ifdef EPERM
case EPERM:
#endif /* EPERM */
case EACCES:
return NS_ERROR_FILE_ACCESS_DENIED;
#ifdef EROFS
case EROFS: /* Read-only file system. */
return NS_ERROR_FILE_READ_ONLY;
#endif
/*
* On AIX 4.3, ENOTEMPTY is defined as EEXIST,
* so there can't be cases for both without
* preprocessing.
*/
#if ENOTEMPTY != EEXIST
case ENOTEMPTY:
return NS_ERROR_FILE_DIR_NOT_EMPTY;
#endif /* ENOTEMPTY != EEXIST */
/* Note that nsIFile.createUnique() returns
NS_ERROR_FILE_TOO_BIG when it cannot create a temporary
file with a unique filename.
See https://developer.mozilla.org/en-US/docs/Table_Of_Errors
Other usages of NS_ERROR_FILE_TOO_BIG in the source tree
are in line with the POSIX semantics of EFBIG.
So this is a reasonably good approximation.
*/
case EFBIG: /* File too large. */
return NS_ERROR_FILE_TOO_BIG;
default:
return NS_ERROR_FAILURE;
}
}
#define NSRESULT_FOR_ERRNO() nsresultForErrno(errno)
void NS_StartupLocalFile();
void NS_ShutdownLocalFile();
#endif