Daiki Kato / mbed-os-lychee

mbed-os for GR-LYCHEE

Dependents:   mbed-os-example-blinky-gr-lychee GR-Boads_Camera_sample GR-Boards_Audio_Recoder GR-Boads_Camera_DisplayApp ... more

drivers/Stream.cpp@0:f782d9c66c49, 2018-02-02 (annotated)

Committer:
dkato
Date:
Fri Feb 02 05:42:23 2018 +0000
Revision:
0:f782d9c66c49
mbed-os for GR-LYCHEE

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dkato 0:f782d9c66c49 1 /* mbed Microcontroller Library
dkato 0:f782d9c66c49 2 * Copyright (c) 2006-2013 ARM Limited
dkato 0:f782d9c66c49 3 *
dkato 0:f782d9c66c49 4 * Licensed under the Apache License, Version 2.0 (the "License");
dkato 0:f782d9c66c49 5 * you may not use this file except in compliance with the License.
dkato 0:f782d9c66c49 6 * You may obtain a copy of the License at
dkato 0:f782d9c66c49 7 *
dkato 0:f782d9c66c49 8 * http://www.apache.org/licenses/LICENSE-2.0
dkato 0:f782d9c66c49 9 *
dkato 0:f782d9c66c49 10 * Unless required by applicable law or agreed to in writing, software
dkato 0:f782d9c66c49 11 * distributed under the License is distributed on an "AS IS" BASIS,
dkato 0:f782d9c66c49 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
dkato 0:f782d9c66c49 13 * See the License for the specific language governing permissions and
dkato 0:f782d9c66c49 14 * limitations under the License.
dkato 0:f782d9c66c49 15 */
dkato 0:f782d9c66c49 16 #include "drivers/Stream.h"
dkato 0:f782d9c66c49 17
dkato 0:f782d9c66c49 18 namespace mbed {
dkato 0:f782d9c66c49 19
dkato 0:f782d9c66c49 20 Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
dkato 0:f782d9c66c49 21 // No lock needed in constructor
dkato 0:f782d9c66c49 22 /* open ourselves */
dkato 0:f782d9c66c49 23 char buf[12]; /* :0x12345678 + null byte */
dkato 0:f782d9c66c49 24 std::sprintf(buf, ":%p", this);
dkato 0:f782d9c66c49 25 _file = std::fopen(buf, "w+");
dkato 0:f782d9c66c49 26 mbed_set_unbuffered_stream(_file);
dkato 0:f782d9c66c49 27 }
dkato 0:f782d9c66c49 28
dkato 0:f782d9c66c49 29 Stream::~Stream() {
dkato 0:f782d9c66c49 30 // No lock can be used in destructor
dkato 0:f782d9c66c49 31 fclose(_file);
dkato 0:f782d9c66c49 32 }
dkato 0:f782d9c66c49 33
dkato 0:f782d9c66c49 34 int Stream::putc(int c) {
dkato 0:f782d9c66c49 35 lock();
dkato 0:f782d9c66c49 36 fflush(_file);
dkato 0:f782d9c66c49 37 int ret = std::fputc(c, _file);
dkato 0:f782d9c66c49 38 unlock();
dkato 0:f782d9c66c49 39 return ret;
dkato 0:f782d9c66c49 40 }
dkato 0:f782d9c66c49 41 int Stream::puts(const char *s) {
dkato 0:f782d9c66c49 42 lock();
dkato 0:f782d9c66c49 43 fflush(_file);
dkato 0:f782d9c66c49 44 int ret = std::fputs(s, _file);
dkato 0:f782d9c66c49 45 unlock();
dkato 0:f782d9c66c49 46 return ret;
dkato 0:f782d9c66c49 47 }
dkato 0:f782d9c66c49 48 int Stream::getc() {
dkato 0:f782d9c66c49 49 lock();
dkato 0:f782d9c66c49 50 fflush(_file);
dkato 0:f782d9c66c49 51 int ret = mbed_getc(_file);
dkato 0:f782d9c66c49 52 unlock();
dkato 0:f782d9c66c49 53 return ret;
dkato 0:f782d9c66c49 54 }
dkato 0:f782d9c66c49 55 char* Stream::gets(char *s, int size) {
dkato 0:f782d9c66c49 56 lock();
dkato 0:f782d9c66c49 57 fflush(_file);
dkato 0:f782d9c66c49 58 char *ret = mbed_gets(s,size,_file);
dkato 0:f782d9c66c49 59 unlock();
dkato 0:f782d9c66c49 60 return ret;
dkato 0:f782d9c66c49 61 }
dkato 0:f782d9c66c49 62
dkato 0:f782d9c66c49 63 int Stream::close() {
dkato 0:f782d9c66c49 64 return 0;
dkato 0:f782d9c66c49 65 }
dkato 0:f782d9c66c49 66
dkato 0:f782d9c66c49 67 ssize_t Stream::write(const void* buffer, size_t length) {
dkato 0:f782d9c66c49 68 const char* ptr = (const char*)buffer;
dkato 0:f782d9c66c49 69 const char* end = ptr + length;
dkato 0:f782d9c66c49 70
dkato 0:f782d9c66c49 71 lock();
dkato 0:f782d9c66c49 72 while (ptr != end) {
dkato 0:f782d9c66c49 73 if (_putc(*ptr++) == EOF) {
dkato 0:f782d9c66c49 74 break;
dkato 0:f782d9c66c49 75 }
dkato 0:f782d9c66c49 76 }
dkato 0:f782d9c66c49 77 unlock();
dkato 0:f782d9c66c49 78
dkato 0:f782d9c66c49 79 return ptr - (const char*)buffer;
dkato 0:f782d9c66c49 80 }
dkato 0:f782d9c66c49 81
dkato 0:f782d9c66c49 82 ssize_t Stream::read(void* buffer, size_t length) {
dkato 0:f782d9c66c49 83 char* ptr = (char*)buffer;
dkato 0:f782d9c66c49 84 char* end = ptr + length;
dkato 0:f782d9c66c49 85
dkato 0:f782d9c66c49 86 lock();
dkato 0:f782d9c66c49 87 while (ptr != end) {
dkato 0:f782d9c66c49 88 int c = _getc();
dkato 0:f782d9c66c49 89 if (c==EOF) break;
dkato 0:f782d9c66c49 90 *ptr++ = c;
dkato 0:f782d9c66c49 91 }
dkato 0:f782d9c66c49 92 unlock();
dkato 0:f782d9c66c49 93
dkato 0:f782d9c66c49 94 return ptr - (const char*)buffer;
dkato 0:f782d9c66c49 95 }
dkato 0:f782d9c66c49 96
dkato 0:f782d9c66c49 97 off_t Stream::seek(off_t offset, int whence) {
dkato 0:f782d9c66c49 98 return 0;
dkato 0:f782d9c66c49 99 }
dkato 0:f782d9c66c49 100
dkato 0:f782d9c66c49 101 off_t Stream::tell() {
dkato 0:f782d9c66c49 102 return 0;
dkato 0:f782d9c66c49 103 }
dkato 0:f782d9c66c49 104
dkato 0:f782d9c66c49 105 void Stream::rewind() {
dkato 0:f782d9c66c49 106 }
dkato 0:f782d9c66c49 107
dkato 0:f782d9c66c49 108 int Stream::isatty() {
dkato 0:f782d9c66c49 109 return 0;
dkato 0:f782d9c66c49 110 }
dkato 0:f782d9c66c49 111
dkato 0:f782d9c66c49 112 int Stream::sync() {
dkato 0:f782d9c66c49 113 return 0;
dkato 0:f782d9c66c49 114 }
dkato 0:f782d9c66c49 115
dkato 0:f782d9c66c49 116 size_t Stream::size() {
dkato 0:f782d9c66c49 117 return 0;
dkato 0:f782d9c66c49 118 }
dkato 0:f782d9c66c49 119
dkato 0:f782d9c66c49 120 int Stream::printf(const char* format, ...) {
dkato 0:f782d9c66c49 121 lock();
dkato 0:f782d9c66c49 122 std::va_list arg;
dkato 0:f782d9c66c49 123 va_start(arg, format);
dkato 0:f782d9c66c49 124 fflush(_file);
dkato 0:f782d9c66c49 125 int r = vfprintf(_file, format, arg);
dkato 0:f782d9c66c49 126 va_end(arg);
dkato 0:f782d9c66c49 127 unlock();
dkato 0:f782d9c66c49 128 return r;
dkato 0:f782d9c66c49 129 }
dkato 0:f782d9c66c49 130
dkato 0:f782d9c66c49 131 int Stream::scanf(const char* format, ...) {
dkato 0:f782d9c66c49 132 lock();
dkato 0:f782d9c66c49 133 std::va_list arg;
dkato 0:f782d9c66c49 134 va_start(arg, format);
dkato 0:f782d9c66c49 135 fflush(_file);
dkato 0:f782d9c66c49 136 int r = vfscanf(_file, format, arg);
dkato 0:f782d9c66c49 137 va_end(arg);
dkato 0:f782d9c66c49 138 unlock();
dkato 0:f782d9c66c49 139 return r;
dkato 0:f782d9c66c49 140 }
dkato 0:f782d9c66c49 141
dkato 0:f782d9c66c49 142 int Stream::vprintf(const char* format, std::va_list args) {
dkato 0:f782d9c66c49 143 lock();
dkato 0:f782d9c66c49 144 fflush(_file);
dkato 0:f782d9c66c49 145 int r = vfprintf(_file, format, args);
dkato 0:f782d9c66c49 146 unlock();
dkato 0:f782d9c66c49 147 return r;
dkato 0:f782d9c66c49 148 }
dkato 0:f782d9c66c49 149
dkato 0:f782d9c66c49 150 int Stream::vscanf(const char* format, std::va_list args) {
dkato 0:f782d9c66c49 151 lock();
dkato 0:f782d9c66c49 152 fflush(_file);
dkato 0:f782d9c66c49 153 int r = vfscanf(_file, format, args);
dkato 0:f782d9c66c49 154 unlock();
dkato 0:f782d9c66c49 155 return r;
dkato 0:f782d9c66c49 156 }
dkato 0:f782d9c66c49 157
dkato 0:f782d9c66c49 158 } // namespace mbed