Important changes to repositories hosted on mbed.com
Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.
To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.
It is also possible to export all your personal repositories from the account settings page.
TestFile.h
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2018 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 #ifndef MBED_TESTFILEHANDLE_H 00017 #define MBED_TESTFILEHANDLE_H 00018 00019 #include "platform/FileHandle.h" 00020 00021 00022 #define POS_IS_VALID(pos) (pos >= 0 && pos < _end) 00023 #define NEW_POS_IS_VALID(pos) (pos >= 0 && pos < (int32_t)FILE_SIZE) 00024 #define SEEK_POS_IS_VALID(pos) (pos >= 0 && pos <= _end) 00025 #define INVALID_POS (-1) 00026 00027 template<uint32_t FILE_SIZE> 00028 class TestFile : public FileHandle { 00029 public: 00030 TestFile(): _pos(0), _end(0) {} 00031 ~TestFile() {} 00032 00033 enum FunctionName { 00034 fnNone, fnRead, fnWrite, fnSeek, fnClose, fnIsatty 00035 }; 00036 00037 virtual ssize_t read(void *buffer, size_t size) 00038 { 00039 ssize_t read; 00040 _fnCalled = fnRead; 00041 00042 for(read = 0; (size_t)read < size; read++) 00043 { 00044 if(POS_IS_VALID(_pos)) { 00045 ((uint8_t*)buffer)[read] = _data[_pos++]; 00046 } else { 00047 break; 00048 } 00049 } // for 00050 return read; 00051 } 00052 00053 virtual ssize_t write(const void *buffer, size_t size) 00054 { 00055 ssize_t written; 00056 _fnCalled = fnWrite; 00057 00058 for(written = 0; (size_t)written < size; written++) 00059 { 00060 if(NEW_POS_IS_VALID(_pos)) { 00061 _data[_pos++] = ((uint8_t*)buffer)[written]; 00062 } else { 00063 if(0 == written) { 00064 return -ENOSPC; 00065 } 00066 break; 00067 } 00068 if(_end < _pos) { 00069 _end++; 00070 } 00071 } // for 00072 return written; 00073 } 00074 00075 virtual off_t seek(off_t offset, int whence) 00076 { 00077 _fnCalled = fnSeek; 00078 int32_t new_pos = INVALID_POS; 00079 00080 switch(whence) 00081 { 00082 case SEEK_SET: 00083 new_pos = offset; 00084 break; 00085 00086 case SEEK_CUR: 00087 new_pos = _pos + offset; 00088 break; 00089 00090 case SEEK_END: 00091 new_pos = _end - offset; 00092 break; 00093 00094 default: 00095 // nothing todo 00096 break; 00097 } 00098 00099 if(SEEK_POS_IS_VALID(new_pos)) { 00100 _pos = new_pos; 00101 } else { 00102 return -EINVAL; 00103 } 00104 00105 return _pos; 00106 } 00107 00108 virtual int close() 00109 { 00110 _fnCalled = fnClose; 00111 return 0; 00112 } 00113 00114 00115 static void resetFunctionCallHistory() 00116 { 00117 _fnCalled = fnNone; 00118 } 00119 00120 static bool functionCalled(FunctionName name) 00121 { 00122 return (name == _fnCalled); 00123 } 00124 00125 static FunctionName getFunctionCalled() 00126 { 00127 return _fnCalled; 00128 } 00129 00130 private: 00131 00132 // stores last function call name 00133 static FunctionName _fnCalled; 00134 00135 // file storage 00136 uint8_t _data[FILE_SIZE]; 00137 00138 int32_t _pos, _end; 00139 }; 00140 00141 template<uint32_t FILE_SIZE> 00142 typename TestFile<FILE_SIZE>::FunctionName TestFile<FILE_SIZE>::_fnCalled; 00143 00144 00145 #endif // MBED_TESTFILEHANDLE_H
Generated on Tue Jul 12 2022 13:31:35 by
