dyld3/ClosureFileSystemNull.cpp

   1 /*
   2  * Copyright (c) 2017 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #include "ClosureFileSystemNull.h"
  25
  26 using dyld3::closure::FileSystemNull;
  27
  28 bool FileSystemNull::getRealPath(const char possiblePath[MAXPATHLEN], char realPath[MAXPATHLEN]) const {
  29     return false;
  30 }
  31
  32 bool FileSystemNull::loadFile(const char* path, LoadedFileInfo& info, char realerPath[MAXPATHLEN], void (^error)(const char* format, ...)) const {
  33     return false;
  34 }
  35
  36 void FileSystemNull::unloadFile(const LoadedFileInfo& info) const {
  37     if (info.unload)
  38         info.unload(info);
  39 }
  40
  41 void FileSystemNull::unloadPartialFile(LoadedFileInfo& info, uint64_t keepStartOffset, uint64_t keepLength) const {
  42     // Note we don't actually unload the data here, but we do want to update the offsets for other data structures to track where we are
  43     info.fileContent = (const void*)((char*)info.fileContent + keepStartOffset);
  44     info.fileContentLen = keepLength;
  45 }
  46
  47 bool FileSystemNull::fileExists(const char* path, uint64_t* inode, uint64_t* mtime,
  48                                 bool* issetuid, bool* inodesMatchRuntime) const {
  49     return false;
  50 }