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platform/Stream.h@0:13413ea9a877, 2022-06-12 (annotated)
- Committer:
- ganlikun
- Date:
- Sun Jun 12 14:02:44 2022 +0000
- Revision:
- 0:13413ea9a877
00
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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ganlikun | 0:13413ea9a877 | 1 | /* mbed Microcontroller Library |
ganlikun | 0:13413ea9a877 | 2 | * Copyright (c) 2006-2013 ARM Limited |
ganlikun | 0:13413ea9a877 | 3 | * |
ganlikun | 0:13413ea9a877 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
ganlikun | 0:13413ea9a877 | 5 | * you may not use this file except in compliance with the License. |
ganlikun | 0:13413ea9a877 | 6 | * You may obtain a copy of the License at |
ganlikun | 0:13413ea9a877 | 7 | * |
ganlikun | 0:13413ea9a877 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
ganlikun | 0:13413ea9a877 | 9 | * |
ganlikun | 0:13413ea9a877 | 10 | * Unless required by applicable law or agreed to in writing, software |
ganlikun | 0:13413ea9a877 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
ganlikun | 0:13413ea9a877 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
ganlikun | 0:13413ea9a877 | 13 | * See the License for the specific language governing permissions and |
ganlikun | 0:13413ea9a877 | 14 | * limitations under the License. |
ganlikun | 0:13413ea9a877 | 15 | */ |
ganlikun | 0:13413ea9a877 | 16 | #ifndef MBED_STREAM_H |
ganlikun | 0:13413ea9a877 | 17 | #define MBED_STREAM_H |
ganlikun | 0:13413ea9a877 | 18 | |
ganlikun | 0:13413ea9a877 | 19 | #include "platform/platform.h" |
ganlikun | 0:13413ea9a877 | 20 | #include "platform/FileLike.h" |
ganlikun | 0:13413ea9a877 | 21 | #include "platform/FileHandle.h" |
ganlikun | 0:13413ea9a877 | 22 | #include "platform/NonCopyable.h" |
ganlikun | 0:13413ea9a877 | 23 | #include <cstdio> |
ganlikun | 0:13413ea9a877 | 24 | #include <cstdarg> |
ganlikun | 0:13413ea9a877 | 25 | |
ganlikun | 0:13413ea9a877 | 26 | namespace mbed { |
ganlikun | 0:13413ea9a877 | 27 | /** \addtogroup platform */ |
ganlikun | 0:13413ea9a877 | 28 | /** @{*/ |
ganlikun | 0:13413ea9a877 | 29 | |
ganlikun | 0:13413ea9a877 | 30 | extern void mbed_set_unbuffered_stream(std::FILE *_file); |
ganlikun | 0:13413ea9a877 | 31 | extern int mbed_getc(std::FILE *_file); |
ganlikun | 0:13413ea9a877 | 32 | extern char* mbed_gets(char *s, int size, std::FILE *_file); |
ganlikun | 0:13413ea9a877 | 33 | /** @}*/ |
ganlikun | 0:13413ea9a877 | 34 | |
ganlikun | 0:13413ea9a877 | 35 | /** File stream |
ganlikun | 0:13413ea9a877 | 36 | * |
ganlikun | 0:13413ea9a877 | 37 | * @note Synchronization level: Set by subclass |
ganlikun | 0:13413ea9a877 | 38 | * @ingroup platform |
ganlikun | 0:13413ea9a877 | 39 | */ |
ganlikun | 0:13413ea9a877 | 40 | class Stream : public FileLike, private NonCopyable<Stream> { |
ganlikun | 0:13413ea9a877 | 41 | |
ganlikun | 0:13413ea9a877 | 42 | public: |
ganlikun | 0:13413ea9a877 | 43 | Stream(const char *name=NULL); |
ganlikun | 0:13413ea9a877 | 44 | virtual ~Stream(); |
ganlikun | 0:13413ea9a877 | 45 | |
ganlikun | 0:13413ea9a877 | 46 | int putc(int c); |
ganlikun | 0:13413ea9a877 | 47 | int puts(const char *s); |
ganlikun | 0:13413ea9a877 | 48 | int getc(); |
ganlikun | 0:13413ea9a877 | 49 | char *gets(char *s, int size); |
ganlikun | 0:13413ea9a877 | 50 | int printf(const char* format, ...); |
ganlikun | 0:13413ea9a877 | 51 | int scanf(const char* format, ...); |
ganlikun | 0:13413ea9a877 | 52 | int vprintf(const char* format, std::va_list args); |
ganlikun | 0:13413ea9a877 | 53 | int vscanf(const char* format, std::va_list args); |
ganlikun | 0:13413ea9a877 | 54 | |
ganlikun | 0:13413ea9a877 | 55 | operator std::FILE*() {return _file;} |
ganlikun | 0:13413ea9a877 | 56 | |
ganlikun | 0:13413ea9a877 | 57 | protected: |
ganlikun | 0:13413ea9a877 | 58 | virtual int close(); |
ganlikun | 0:13413ea9a877 | 59 | virtual ssize_t write(const void* buffer, size_t length); |
ganlikun | 0:13413ea9a877 | 60 | virtual ssize_t read(void* buffer, size_t length); |
ganlikun | 0:13413ea9a877 | 61 | virtual off_t seek(off_t offset, int whence); |
ganlikun | 0:13413ea9a877 | 62 | virtual off_t tell(); |
ganlikun | 0:13413ea9a877 | 63 | virtual void rewind(); |
ganlikun | 0:13413ea9a877 | 64 | virtual int isatty(); |
ganlikun | 0:13413ea9a877 | 65 | virtual int sync(); |
ganlikun | 0:13413ea9a877 | 66 | virtual off_t size(); |
ganlikun | 0:13413ea9a877 | 67 | |
ganlikun | 0:13413ea9a877 | 68 | virtual int _putc(int c) = 0; |
ganlikun | 0:13413ea9a877 | 69 | virtual int _getc() = 0; |
ganlikun | 0:13413ea9a877 | 70 | |
ganlikun | 0:13413ea9a877 | 71 | std::FILE *_file; |
ganlikun | 0:13413ea9a877 | 72 | |
ganlikun | 0:13413ea9a877 | 73 | /** Acquire exclusive access to this object. |
ganlikun | 0:13413ea9a877 | 74 | */ |
ganlikun | 0:13413ea9a877 | 75 | virtual void lock() { |
ganlikun | 0:13413ea9a877 | 76 | // Stub |
ganlikun | 0:13413ea9a877 | 77 | } |
ganlikun | 0:13413ea9a877 | 78 | |
ganlikun | 0:13413ea9a877 | 79 | /** Release exclusive access to this object. |
ganlikun | 0:13413ea9a877 | 80 | */ |
ganlikun | 0:13413ea9a877 | 81 | virtual void unlock() { |
ganlikun | 0:13413ea9a877 | 82 | // Stub |
ganlikun | 0:13413ea9a877 | 83 | } |
ganlikun | 0:13413ea9a877 | 84 | }; |
ganlikun | 0:13413ea9a877 | 85 | |
ganlikun | 0:13413ea9a877 | 86 | } // namespace mbed |
ganlikun | 0:13413ea9a877 | 87 | |
ganlikun | 0:13413ea9a877 | 88 | #endif |
ganlikun | 0:13413ea9a877 | 89 | |
ganlikun | 0:13413ea9a877 | 90 |