EL4121 Embedded System / mbed-os

mbed-os

Dependents:   cobaLCDJoyMotor_Thread odometry_omni_3roda_v3 odometry_omni_3roda_v1 odometry_omni_3roda_v2 ... more

platform/FilePath.cpp@0:b74591d5ab33, 2017-12-11 (annotated)

Committer:
be_bryan
Date:
Mon Dec 11 17:54:04 2017 +0000
Revision:
0:b74591d5ab33
motor ++

Who changed what in which revision?

UserRevisionLine numberNew contents of line
be_bryan 0:b74591d5ab33 1 /* mbed Microcontroller Library
be_bryan 0:b74591d5ab33 2 * Copyright (c) 2006-2013 ARM Limited
be_bryan 0:b74591d5ab33 3 *
be_bryan 0:b74591d5ab33 4 * Licensed under the Apache License, Version 2.0 (the "License");
be_bryan 0:b74591d5ab33 5 * you may not use this file except in compliance with the License.
be_bryan 0:b74591d5ab33 6 * You may obtain a copy of the License at
be_bryan 0:b74591d5ab33 7 *
be_bryan 0:b74591d5ab33 8 * http://www.apache.org/licenses/LICENSE-2.0
be_bryan 0:b74591d5ab33 9 *
be_bryan 0:b74591d5ab33 10 * Unless required by applicable law or agreed to in writing, software
be_bryan 0:b74591d5ab33 11 * distributed under the License is distributed on an "AS IS" BASIS,
be_bryan 0:b74591d5ab33 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
be_bryan 0:b74591d5ab33 13 * See the License for the specific language governing permissions and
be_bryan 0:b74591d5ab33 14 * limitations under the License.
be_bryan 0:b74591d5ab33 15 */
be_bryan 0:b74591d5ab33 16 #include "platform/FilePath.h"
be_bryan 0:b74591d5ab33 17
be_bryan 0:b74591d5ab33 18 namespace mbed {
be_bryan 0:b74591d5ab33 19
be_bryan 0:b74591d5ab33 20 FilePath::FilePath(const char* file_path) : file_name(NULL), fb(NULL) {
be_bryan 0:b74591d5ab33 21 if ((file_path[0] != '/') || (file_path[1] == 0)) return;
be_bryan 0:b74591d5ab33 22
be_bryan 0:b74591d5ab33 23 const char* file_system = &file_path[1];
be_bryan 0:b74591d5ab33 24 file_name = file_system;
be_bryan 0:b74591d5ab33 25 int len = 0;
be_bryan 0:b74591d5ab33 26 while (true) {
be_bryan 0:b74591d5ab33 27 char c = *file_name;
be_bryan 0:b74591d5ab33 28 if (c == '/') { // end of object name
be_bryan 0:b74591d5ab33 29 file_name++; // point to one char after the '/'
be_bryan 0:b74591d5ab33 30 break;
be_bryan 0:b74591d5ab33 31 }
be_bryan 0:b74591d5ab33 32 if (c == 0) { // end of object name, with no filename
be_bryan 0:b74591d5ab33 33 break;
be_bryan 0:b74591d5ab33 34 }
be_bryan 0:b74591d5ab33 35 len++;
be_bryan 0:b74591d5ab33 36 file_name++;
be_bryan 0:b74591d5ab33 37 }
be_bryan 0:b74591d5ab33 38
be_bryan 0:b74591d5ab33 39 fb = FileBase::lookup(file_system, len);
be_bryan 0:b74591d5ab33 40 }
be_bryan 0:b74591d5ab33 41
be_bryan 0:b74591d5ab33 42 const char* FilePath::fileName(void) {
be_bryan 0:b74591d5ab33 43 return file_name;
be_bryan 0:b74591d5ab33 44 }
be_bryan 0:b74591d5ab33 45
be_bryan 0:b74591d5ab33 46 bool FilePath::isFileSystem(void) {
be_bryan 0:b74591d5ab33 47 if (NULL == fb)
be_bryan 0:b74591d5ab33 48 return false;
be_bryan 0:b74591d5ab33 49 return (fb->getPathType() == FileSystemPathType);
be_bryan 0:b74591d5ab33 50 }
be_bryan 0:b74591d5ab33 51
be_bryan 0:b74591d5ab33 52 FileSystemLike* FilePath::fileSystem(void) {
be_bryan 0:b74591d5ab33 53 if (isFileSystem()) {
be_bryan 0:b74591d5ab33 54 return static_cast<FileSystemLike*>(fb);
be_bryan 0:b74591d5ab33 55 }
be_bryan 0:b74591d5ab33 56 return NULL;
be_bryan 0:b74591d5ab33 57 }
be_bryan 0:b74591d5ab33 58
be_bryan 0:b74591d5ab33 59 bool FilePath::isFile(void) {
be_bryan 0:b74591d5ab33 60 if (NULL == fb)
be_bryan 0:b74591d5ab33 61 return false;
be_bryan 0:b74591d5ab33 62 return (fb->getPathType() == FilePathType);
be_bryan 0:b74591d5ab33 63 }
be_bryan 0:b74591d5ab33 64
be_bryan 0:b74591d5ab33 65 FileLike* FilePath::file(void) {
be_bryan 0:b74591d5ab33 66 if (isFile()) {
be_bryan 0:b74591d5ab33 67 return (FileLike*)fb;
be_bryan 0:b74591d5ab33 68 }
be_bryan 0:b74591d5ab33 69 return NULL;
be_bryan 0:b74591d5ab33 70 }
be_bryan 0:b74591d5ab33 71
be_bryan 0:b74591d5ab33 72 bool FilePath::exists(void) {
be_bryan 0:b74591d5ab33 73 return fb != NULL;
be_bryan 0:b74591d5ab33 74 }
be_bryan 0:b74591d5ab33 75
be_bryan 0:b74591d5ab33 76 } // namespace mbed