Impressum nsLocalFile.h Sprache: C

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */

#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);

// XPCOMInit 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 "nsIFile.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 aErr) {
  switch (aErr) {
    case 0:
      return NS_OK;
#ifdef EDQUOT
    case EDQUOT:        /* Quota exceeded */
      [[fallthrough]];  // to NS_ERROR_FILE_NO_DEVICE_SPACE
#endif
    case ENOSPC:
      return NS_ERROR_FILE_NO_DEVICE_SPACE;
#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_NOT_FOUND;
    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
    case ENOTEMPTY:
      return NS_ERROR_FILE_DIR_NOT_EMPTY;
    /* Note that nsIFile.createUnique() returns
       NS_ERROR_FILE_TOO_BIG when it cannot create a temporary
       file with a unique filename.
       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;

#ifdef ENOATTR
    case ENOATTR:
      return NS_ERROR_NOT_AVAILABLE;
#endif  // ENOATTR

    default:
      return NS_ERROR_FAILURE;
  }
}

#define NSRESULT_FOR_ERRNO() nsresultForErrno(errno)

#endif

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