Knight KE / Mbed OS Game_Master

游戏王对战板，目前code还是空的

mbed-os/platform/Stream.cpp@0:9b3d4731edbb, 2018-06-21 (annotated)

Committer:
WFKnight
Date:
Thu Jun 21 13:51:43 2018 +0000
Revision:
0:9b3d4731edbb
UART, RTOS, LED

Who changed what in which revision?

UserRevisionLine numberNew contents of line
WFKnight 0:9b3d4731edbb 1 /* mbed Microcontroller Library
WFKnight 0:9b3d4731edbb 2 * Copyright (c) 2006-2013 ARM Limited
WFKnight 0:9b3d4731edbb 3 *
WFKnight 0:9b3d4731edbb 4 * Licensed under the Apache License, Version 2.0 (the "License");
WFKnight 0:9b3d4731edbb 5 * you may not use this file except in compliance with the License.
WFKnight 0:9b3d4731edbb 6 * You may obtain a copy of the License at
WFKnight 0:9b3d4731edbb 7 *
WFKnight 0:9b3d4731edbb 8 * http://www.apache.org/licenses/LICENSE-2.0
WFKnight 0:9b3d4731edbb 9 *
WFKnight 0:9b3d4731edbb 10 * Unless required by applicable law or agreed to in writing, software
WFKnight 0:9b3d4731edbb 11 * distributed under the License is distributed on an "AS IS" BASIS,
WFKnight 0:9b3d4731edbb 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
WFKnight 0:9b3d4731edbb 13 * See the License for the specific language governing permissions and
WFKnight 0:9b3d4731edbb 14 * limitations under the License.
WFKnight 0:9b3d4731edbb 15 */
WFKnight 0:9b3d4731edbb 16 #include "platform/Stream.h"
WFKnight 0:9b3d4731edbb 17 #include "platform/mbed_error.h"
WFKnight 0:9b3d4731edbb 18 #include <errno.h>
WFKnight 0:9b3d4731edbb 19
WFKnight 0:9b3d4731edbb 20 namespace mbed {
WFKnight 0:9b3d4731edbb 21
WFKnight 0:9b3d4731edbb 22 Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
WFKnight 0:9b3d4731edbb 23 // No lock needed in constructor
WFKnight 0:9b3d4731edbb 24 /* open ourselves */
WFKnight 0:9b3d4731edbb 25 _file = fdopen(this, "w+");
WFKnight 0:9b3d4731edbb 26 // fdopen() will make us buffered because Stream::isatty()
WFKnight 0:9b3d4731edbb 27 // wrongly returns zero which is not being changed for
WFKnight 0:9b3d4731edbb 28 // backward compatibility
WFKnight 0:9b3d4731edbb 29 if (_file) {
WFKnight 0:9b3d4731edbb 30 mbed_set_unbuffered_stream(_file);
WFKnight 0:9b3d4731edbb 31 } else {
WFKnight 0:9b3d4731edbb 32 MBED_ERROR1(MBED_MAKE_ERROR(MBED_MODULE_PLATFORM, MBED_ERROR_CODE_OPEN_FAILED), "Stream obj failure", _file);
WFKnight 0:9b3d4731edbb 33 }
WFKnight 0:9b3d4731edbb 34 }
WFKnight 0:9b3d4731edbb 35
WFKnight 0:9b3d4731edbb 36 Stream::~Stream() {
WFKnight 0:9b3d4731edbb 37 // No lock can be used in destructor
WFKnight 0:9b3d4731edbb 38 fclose(_file);
WFKnight 0:9b3d4731edbb 39 }
WFKnight 0:9b3d4731edbb 40
WFKnight 0:9b3d4731edbb 41 int Stream::putc(int c) {
WFKnight 0:9b3d4731edbb 42 lock();
WFKnight 0:9b3d4731edbb 43 fflush(_file);
WFKnight 0:9b3d4731edbb 44 int ret = std::fputc(c, _file);
WFKnight 0:9b3d4731edbb 45 unlock();
WFKnight 0:9b3d4731edbb 46 return ret;
WFKnight 0:9b3d4731edbb 47 }
WFKnight 0:9b3d4731edbb 48 int Stream::puts(const char *s) {
WFKnight 0:9b3d4731edbb 49 lock();
WFKnight 0:9b3d4731edbb 50 fflush(_file);
WFKnight 0:9b3d4731edbb 51 int ret = std::fputs(s, _file);
WFKnight 0:9b3d4731edbb 52 unlock();
WFKnight 0:9b3d4731edbb 53 return ret;
WFKnight 0:9b3d4731edbb 54 }
WFKnight 0:9b3d4731edbb 55 int Stream::getc() {
WFKnight 0:9b3d4731edbb 56 lock();
WFKnight 0:9b3d4731edbb 57 fflush(_file);
WFKnight 0:9b3d4731edbb 58 int ret = mbed_getc(_file);
WFKnight 0:9b3d4731edbb 59 unlock();
WFKnight 0:9b3d4731edbb 60 return ret;
WFKnight 0:9b3d4731edbb 61 }
WFKnight 0:9b3d4731edbb 62 char* Stream::gets(char *s, int size) {
WFKnight 0:9b3d4731edbb 63 lock();
WFKnight 0:9b3d4731edbb 64 fflush(_file);
WFKnight 0:9b3d4731edbb 65 char *ret = mbed_gets(s,size,_file);
WFKnight 0:9b3d4731edbb 66 unlock();
WFKnight 0:9b3d4731edbb 67 return ret;
WFKnight 0:9b3d4731edbb 68 }
WFKnight 0:9b3d4731edbb 69
WFKnight 0:9b3d4731edbb 70 int Stream::close() {
WFKnight 0:9b3d4731edbb 71 return 0;
WFKnight 0:9b3d4731edbb 72 }
WFKnight 0:9b3d4731edbb 73
WFKnight 0:9b3d4731edbb 74 ssize_t Stream::write(const void* buffer, size_t length) {
WFKnight 0:9b3d4731edbb 75 const char* ptr = (const char*)buffer;
WFKnight 0:9b3d4731edbb 76 const char* end = ptr + length;
WFKnight 0:9b3d4731edbb 77
WFKnight 0:9b3d4731edbb 78 lock();
WFKnight 0:9b3d4731edbb 79 while (ptr != end) {
WFKnight 0:9b3d4731edbb 80 if (_putc(*ptr++) == EOF) {
WFKnight 0:9b3d4731edbb 81 break;
WFKnight 0:9b3d4731edbb 82 }
WFKnight 0:9b3d4731edbb 83 }
WFKnight 0:9b3d4731edbb 84 unlock();
WFKnight 0:9b3d4731edbb 85
WFKnight 0:9b3d4731edbb 86 return ptr - (const char*)buffer;
WFKnight 0:9b3d4731edbb 87 }
WFKnight 0:9b3d4731edbb 88
WFKnight 0:9b3d4731edbb 89 ssize_t Stream::read(void* buffer, size_t length) {
WFKnight 0:9b3d4731edbb 90 char* ptr = (char*)buffer;
WFKnight 0:9b3d4731edbb 91 char* end = ptr + length;
WFKnight 0:9b3d4731edbb 92
WFKnight 0:9b3d4731edbb 93 lock();
WFKnight 0:9b3d4731edbb 94 while (ptr != end) {
WFKnight 0:9b3d4731edbb 95 int c = _getc();
WFKnight 0:9b3d4731edbb 96 if (c==EOF) break;
WFKnight 0:9b3d4731edbb 97 *ptr++ = c;
WFKnight 0:9b3d4731edbb 98 }
WFKnight 0:9b3d4731edbb 99 unlock();
WFKnight 0:9b3d4731edbb 100
WFKnight 0:9b3d4731edbb 101 return ptr - (const char*)buffer;
WFKnight 0:9b3d4731edbb 102 }
WFKnight 0:9b3d4731edbb 103
WFKnight 0:9b3d4731edbb 104 off_t Stream::seek(off_t offset, int whence) {
WFKnight 0:9b3d4731edbb 105 return 0;
WFKnight 0:9b3d4731edbb 106 }
WFKnight 0:9b3d4731edbb 107
WFKnight 0:9b3d4731edbb 108 off_t Stream::tell() {
WFKnight 0:9b3d4731edbb 109 return 0;
WFKnight 0:9b3d4731edbb 110 }
WFKnight 0:9b3d4731edbb 111
WFKnight 0:9b3d4731edbb 112 void Stream::rewind() {
WFKnight 0:9b3d4731edbb 113 }
WFKnight 0:9b3d4731edbb 114
WFKnight 0:9b3d4731edbb 115 int Stream::isatty() {
WFKnight 0:9b3d4731edbb 116 return 0;
WFKnight 0:9b3d4731edbb 117 }
WFKnight 0:9b3d4731edbb 118
WFKnight 0:9b3d4731edbb 119 int Stream::sync() {
WFKnight 0:9b3d4731edbb 120 return 0;
WFKnight 0:9b3d4731edbb 121 }
WFKnight 0:9b3d4731edbb 122
WFKnight 0:9b3d4731edbb 123 off_t Stream::size() {
WFKnight 0:9b3d4731edbb 124 return 0;
WFKnight 0:9b3d4731edbb 125 }
WFKnight 0:9b3d4731edbb 126
WFKnight 0:9b3d4731edbb 127 int Stream::printf(const char* format, ...) {
WFKnight 0:9b3d4731edbb 128 lock();
WFKnight 0:9b3d4731edbb 129 std::va_list arg;
WFKnight 0:9b3d4731edbb 130 va_start(arg, format);
WFKnight 0:9b3d4731edbb 131 fflush(_file);
WFKnight 0:9b3d4731edbb 132 int r = vfprintf(_file, format, arg);
WFKnight 0:9b3d4731edbb 133 va_end(arg);
WFKnight 0:9b3d4731edbb 134 unlock();
WFKnight 0:9b3d4731edbb 135 return r;
WFKnight 0:9b3d4731edbb 136 }
WFKnight 0:9b3d4731edbb 137
WFKnight 0:9b3d4731edbb 138 int Stream::scanf(const char* format, ...) {
WFKnight 0:9b3d4731edbb 139 lock();
WFKnight 0:9b3d4731edbb 140 std::va_list arg;
WFKnight 0:9b3d4731edbb 141 va_start(arg, format);
WFKnight 0:9b3d4731edbb 142 fflush(_file);
WFKnight 0:9b3d4731edbb 143 int r = vfscanf(_file, format, arg);
WFKnight 0:9b3d4731edbb 144 va_end(arg);
WFKnight 0:9b3d4731edbb 145 unlock();
WFKnight 0:9b3d4731edbb 146 return r;
WFKnight 0:9b3d4731edbb 147 }
WFKnight 0:9b3d4731edbb 148
WFKnight 0:9b3d4731edbb 149 int Stream::vprintf(const char* format, std::va_list args) {
WFKnight 0:9b3d4731edbb 150 lock();
WFKnight 0:9b3d4731edbb 151 fflush(_file);
WFKnight 0:9b3d4731edbb 152 int r = vfprintf(_file, format, args);
WFKnight 0:9b3d4731edbb 153 unlock();
WFKnight 0:9b3d4731edbb 154 return r;
WFKnight 0:9b3d4731edbb 155 }
WFKnight 0:9b3d4731edbb 156
WFKnight 0:9b3d4731edbb 157 int Stream::vscanf(const char* format, std::va_list args) {
WFKnight 0:9b3d4731edbb 158 lock();
WFKnight 0:9b3d4731edbb 159 fflush(_file);
WFKnight 0:9b3d4731edbb 160 int r = vfscanf(_file, format, args);
WFKnight 0:9b3d4731edbb 161 unlock();
WFKnight 0:9b3d4731edbb 162 return r;
WFKnight 0:9b3d4731edbb 163 }
WFKnight 0:9b3d4731edbb 164
WFKnight 0:9b3d4731edbb 165 } // namespace mbed