Kev Mann / mbed-dev-OS5_10_4

RTC auf true

platform/Stream.cpp@2:7aab896b1a3b, 2019-03-13 (annotated)

Committer:
kevman
Date:
Wed Mar 13 11:03:24 2019 +0000
Revision:
2:7aab896b1a3b
Parent:
0:38ceb79fef03 
2019-03-13

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kevman 0:38ceb79fef03 1 /* mbed Microcontroller Library
kevman 0:38ceb79fef03 2 * Copyright (c) 2006-2013 ARM Limited
kevman 0:38ceb79fef03 3 *
kevman 0:38ceb79fef03 4 * Licensed under the Apache License, Version 2.0 (the "License");
kevman 0:38ceb79fef03 5 * you may not use this file except in compliance with the License.
kevman 0:38ceb79fef03 6 * You may obtain a copy of the License at
kevman 0:38ceb79fef03 7 *
kevman 0:38ceb79fef03 8 * http://www.apache.org/licenses/LICENSE-2.0
kevman 0:38ceb79fef03 9 *
kevman 0:38ceb79fef03 10 * Unless required by applicable law or agreed to in writing, software
kevman 0:38ceb79fef03 11 * distributed under the License is distributed on an "AS IS" BASIS,
kevman 0:38ceb79fef03 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kevman 0:38ceb79fef03 13 * See the License for the specific language governing permissions and
kevman 0:38ceb79fef03 14 * limitations under the License.
kevman 0:38ceb79fef03 15 */
kevman 0:38ceb79fef03 16 #include "platform/Stream.h"
kevman 0:38ceb79fef03 17 #include "platform/mbed_error.h"
kevman 0:38ceb79fef03 18 #include <errno.h>
kevman 0:38ceb79fef03 19
kevman 0:38ceb79fef03 20 namespace mbed {
kevman 0:38ceb79fef03 21
kevman 0:38ceb79fef03 22 Stream::Stream(const char *name) : FileLike(name), _file(NULL)
kevman 0:38ceb79fef03 23 {
kevman 0:38ceb79fef03 24 // No lock needed in constructor
kevman 0:38ceb79fef03 25 /* open ourselves */
kevman 0:38ceb79fef03 26 _file = fdopen(this, "w+");
kevman 0:38ceb79fef03 27 // fdopen() will make us buffered because Stream::isatty()
kevman 0:38ceb79fef03 28 // wrongly returns zero which is not being changed for
kevman 0:38ceb79fef03 29 // backward compatibility
kevman 0:38ceb79fef03 30 if (_file) {
kevman 0:38ceb79fef03 31 mbed_set_unbuffered_stream(_file);
kevman 0:38ceb79fef03 32 } else {
kevman 0:38ceb79fef03 33 MBED_ERROR1(MBED_MAKE_ERROR(MBED_MODULE_PLATFORM, MBED_ERROR_CODE_OPEN_FAILED), "Stream obj failure", _file);
kevman 0:38ceb79fef03 34 }
kevman 0:38ceb79fef03 35 }
kevman 0:38ceb79fef03 36
kevman 0:38ceb79fef03 37 Stream::~Stream()
kevman 0:38ceb79fef03 38 {
kevman 0:38ceb79fef03 39 // No lock can be used in destructor
kevman 0:38ceb79fef03 40 fclose(_file);
kevman 0:38ceb79fef03 41 }
kevman 0:38ceb79fef03 42
kevman 0:38ceb79fef03 43 int Stream::putc(int c)
kevman 0:38ceb79fef03 44 {
kevman 0:38ceb79fef03 45 lock();
kevman 0:38ceb79fef03 46 fflush(_file);
kevman 0:38ceb79fef03 47 int ret = std::fputc(c, _file);
kevman 0:38ceb79fef03 48 unlock();
kevman 0:38ceb79fef03 49 return ret;
kevman 0:38ceb79fef03 50 }
kevman 0:38ceb79fef03 51 int Stream::puts(const char *s)
kevman 0:38ceb79fef03 52 {
kevman 0:38ceb79fef03 53 lock();
kevman 0:38ceb79fef03 54 fflush(_file);
kevman 0:38ceb79fef03 55 int ret = std::fputs(s, _file);
kevman 0:38ceb79fef03 56 unlock();
kevman 0:38ceb79fef03 57 return ret;
kevman 0:38ceb79fef03 58 }
kevman 0:38ceb79fef03 59 int Stream::getc()
kevman 0:38ceb79fef03 60 {
kevman 0:38ceb79fef03 61 lock();
kevman 0:38ceb79fef03 62 fflush(_file);
kevman 0:38ceb79fef03 63 int ret = mbed_getc(_file);
kevman 0:38ceb79fef03 64 unlock();
kevman 0:38ceb79fef03 65 return ret;
kevman 0:38ceb79fef03 66 }
kevman 0:38ceb79fef03 67 char *Stream::gets(char *s, int size)
kevman 0:38ceb79fef03 68 {
kevman 0:38ceb79fef03 69 lock();
kevman 0:38ceb79fef03 70 fflush(_file);
kevman 0:38ceb79fef03 71 char *ret = mbed_gets(s, size, _file);
kevman 0:38ceb79fef03 72 unlock();
kevman 0:38ceb79fef03 73 return ret;
kevman 0:38ceb79fef03 74 }
kevman 0:38ceb79fef03 75
kevman 0:38ceb79fef03 76 int Stream::close()
kevman 0:38ceb79fef03 77 {
kevman 0:38ceb79fef03 78 return 0;
kevman 0:38ceb79fef03 79 }
kevman 0:38ceb79fef03 80
kevman 0:38ceb79fef03 81 ssize_t Stream::write(const void *buffer, size_t length)
kevman 0:38ceb79fef03 82 {
kevman 0:38ceb79fef03 83 const char *ptr = (const char *)buffer;
kevman 0:38ceb79fef03 84 const char *end = ptr + length;
kevman 0:38ceb79fef03 85
kevman 0:38ceb79fef03 86 lock();
kevman 0:38ceb79fef03 87 while (ptr != end) {
kevman 0:38ceb79fef03 88 if (_putc(*ptr++) == EOF) {
kevman 0:38ceb79fef03 89 break;
kevman 0:38ceb79fef03 90 }
kevman 0:38ceb79fef03 91 }
kevman 0:38ceb79fef03 92 unlock();
kevman 0:38ceb79fef03 93
kevman 0:38ceb79fef03 94 return ptr - (const char *)buffer;
kevman 0:38ceb79fef03 95 }
kevman 0:38ceb79fef03 96
kevman 0:38ceb79fef03 97 ssize_t Stream::read(void *buffer, size_t length)
kevman 0:38ceb79fef03 98 {
kevman 0:38ceb79fef03 99 char *ptr = (char *)buffer;
kevman 0:38ceb79fef03 100 char *end = ptr + length;
kevman 0:38ceb79fef03 101
kevman 0:38ceb79fef03 102 lock();
kevman 0:38ceb79fef03 103 while (ptr != end) {
kevman 0:38ceb79fef03 104 int c = _getc();
kevman 0:38ceb79fef03 105 if (c == EOF) {
kevman 0:38ceb79fef03 106 break;
kevman 0:38ceb79fef03 107 }
kevman 0:38ceb79fef03 108 *ptr++ = c;
kevman 0:38ceb79fef03 109 }
kevman 0:38ceb79fef03 110 unlock();
kevman 0:38ceb79fef03 111
kevman 0:38ceb79fef03 112 return ptr - (const char *)buffer;
kevman 0:38ceb79fef03 113 }
kevman 0:38ceb79fef03 114
kevman 0:38ceb79fef03 115 off_t Stream::seek(off_t offset, int whence)
kevman 0:38ceb79fef03 116 {
kevman 0:38ceb79fef03 117 return 0;
kevman 0:38ceb79fef03 118 }
kevman 0:38ceb79fef03 119
kevman 0:38ceb79fef03 120 off_t Stream::tell()
kevman 0:38ceb79fef03 121 {
kevman 0:38ceb79fef03 122 return 0;
kevman 0:38ceb79fef03 123 }
kevman 0:38ceb79fef03 124
kevman 0:38ceb79fef03 125 void Stream::rewind()
kevman 0:38ceb79fef03 126 {
kevman 0:38ceb79fef03 127 }
kevman 0:38ceb79fef03 128
kevman 0:38ceb79fef03 129 int Stream::isatty()
kevman 0:38ceb79fef03 130 {
kevman 0:38ceb79fef03 131 return 0;
kevman 0:38ceb79fef03 132 }
kevman 0:38ceb79fef03 133
kevman 0:38ceb79fef03 134 int Stream::sync()
kevman 0:38ceb79fef03 135 {
kevman 0:38ceb79fef03 136 return 0;
kevman 0:38ceb79fef03 137 }
kevman 0:38ceb79fef03 138
kevman 0:38ceb79fef03 139 off_t Stream::size()
kevman 0:38ceb79fef03 140 {
kevman 0:38ceb79fef03 141 return 0;
kevman 0:38ceb79fef03 142 }
kevman 0:38ceb79fef03 143
kevman 0:38ceb79fef03 144 int Stream::printf(const char *format, ...)
kevman 0:38ceb79fef03 145 {
kevman 0:38ceb79fef03 146 lock();
kevman 0:38ceb79fef03 147 std::va_list arg;
kevman 0:38ceb79fef03 148 va_start(arg, format);
kevman 0:38ceb79fef03 149 fflush(_file);
kevman 0:38ceb79fef03 150 int r = vfprintf(_file, format, arg);
kevman 0:38ceb79fef03 151 va_end(arg);
kevman 0:38ceb79fef03 152 unlock();
kevman 0:38ceb79fef03 153 return r;
kevman 0:38ceb79fef03 154 }
kevman 0:38ceb79fef03 155
kevman 0:38ceb79fef03 156 int Stream::scanf(const char *format, ...)
kevman 0:38ceb79fef03 157 {
kevman 0:38ceb79fef03 158 lock();
kevman 0:38ceb79fef03 159 std::va_list arg;
kevman 0:38ceb79fef03 160 va_start(arg, format);
kevman 0:38ceb79fef03 161 fflush(_file);
kevman 0:38ceb79fef03 162 int r = vfscanf(_file, format, arg);
kevman 0:38ceb79fef03 163 va_end(arg);
kevman 0:38ceb79fef03 164 unlock();
kevman 0:38ceb79fef03 165 return r;
kevman 0:38ceb79fef03 166 }
kevman 0:38ceb79fef03 167
kevman 0:38ceb79fef03 168 int Stream::vprintf(const char *format, std::va_list args)
kevman 0:38ceb79fef03 169 {
kevman 0:38ceb79fef03 170 lock();
kevman 0:38ceb79fef03 171 fflush(_file);
kevman 0:38ceb79fef03 172 int r = vfprintf(_file, format, args);
kevman 0:38ceb79fef03 173 unlock();
kevman 0:38ceb79fef03 174 return r;
kevman 0:38ceb79fef03 175 }
kevman 0:38ceb79fef03 176
kevman 0:38ceb79fef03 177 int Stream::vscanf(const char *format, std::va_list args)
kevman 0:38ceb79fef03 178 {
kevman 0:38ceb79fef03 179 lock();
kevman 0:38ceb79fef03 180 fflush(_file);
kevman 0:38ceb79fef03 181 int r = vfscanf(_file, format, args);
kevman 0:38ceb79fef03 182 unlock();
kevman 0:38ceb79fef03 183 return r;
kevman 0:38ceb79fef03 184 }
kevman 0:38ceb79fef03 185
kevman 0:38ceb79fef03 186 } // namespace mbed