Thor Hall / mbed-dev_mbed_lib_v125

This fork captures the mbed lib v125 for ease of integration into older projects.

Fork of mbed-dev by mbed official

common/Stream.cpp@187:92cbb9eec47b, 2018-07-20 (annotated)

Committer:
apluscw
Date:
Fri Jul 20 21:24:42 2018 +0000
Revision:
187:92cbb9eec47b
Mbed library with source code from mbed lib v125. Posted to ease integration with some older projects.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
apluscw 187:92cbb9eec47b 1 /* mbed Microcontroller Library
apluscw 187:92cbb9eec47b 2 * Copyright (c) 2006-2013 ARM Limited
apluscw 187:92cbb9eec47b 3 *
apluscw 187:92cbb9eec47b 4 * Licensed under the Apache License, Version 2.0 (the "License");
apluscw 187:92cbb9eec47b 5 * you may not use this file except in compliance with the License.
apluscw 187:92cbb9eec47b 6 * You may obtain a copy of the License at
apluscw 187:92cbb9eec47b 7 *
apluscw 187:92cbb9eec47b 8 * http://www.apache.org/licenses/LICENSE-2.0
apluscw 187:92cbb9eec47b 9 *
apluscw 187:92cbb9eec47b 10 * Unless required by applicable law or agreed to in writing, software
apluscw 187:92cbb9eec47b 11 * distributed under the License is distributed on an "AS IS" BASIS,
apluscw 187:92cbb9eec47b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
apluscw 187:92cbb9eec47b 13 * See the License for the specific language governing permissions and
apluscw 187:92cbb9eec47b 14 * limitations under the License.
apluscw 187:92cbb9eec47b 15 */
apluscw 187:92cbb9eec47b 16 #include "Stream.h"
apluscw 187:92cbb9eec47b 17
apluscw 187:92cbb9eec47b 18 namespace mbed {
apluscw 187:92cbb9eec47b 19
apluscw 187:92cbb9eec47b 20 Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
apluscw 187:92cbb9eec47b 21 // No lock needed in constructor
apluscw 187:92cbb9eec47b 22 /* open ourselves */
apluscw 187:92cbb9eec47b 23 char buf[12]; /* :0x12345678 + null byte */
apluscw 187:92cbb9eec47b 24 std::sprintf(buf, ":%p", this);
apluscw 187:92cbb9eec47b 25 _file = std::fopen(buf, "w+");
apluscw 187:92cbb9eec47b 26 mbed_set_unbuffered_stream(_file);
apluscw 187:92cbb9eec47b 27 }
apluscw 187:92cbb9eec47b 28
apluscw 187:92cbb9eec47b 29 Stream::~Stream() {
apluscw 187:92cbb9eec47b 30 // No lock can be used in destructor
apluscw 187:92cbb9eec47b 31 fclose(_file);
apluscw 187:92cbb9eec47b 32 }
apluscw 187:92cbb9eec47b 33
apluscw 187:92cbb9eec47b 34 int Stream::putc(int c) {
apluscw 187:92cbb9eec47b 35 lock();
apluscw 187:92cbb9eec47b 36 fflush(_file);
apluscw 187:92cbb9eec47b 37 int ret = std::fputc(c, _file);
apluscw 187:92cbb9eec47b 38 unlock();
apluscw 187:92cbb9eec47b 39 return ret;
apluscw 187:92cbb9eec47b 40 }
apluscw 187:92cbb9eec47b 41 int Stream::puts(const char *s) {
apluscw 187:92cbb9eec47b 42 lock();
apluscw 187:92cbb9eec47b 43 fflush(_file);
apluscw 187:92cbb9eec47b 44 int ret = std::fputs(s, _file);
apluscw 187:92cbb9eec47b 45 unlock();
apluscw 187:92cbb9eec47b 46 return ret;
apluscw 187:92cbb9eec47b 47 }
apluscw 187:92cbb9eec47b 48 int Stream::getc() {
apluscw 187:92cbb9eec47b 49 lock();
apluscw 187:92cbb9eec47b 50 fflush(_file);
apluscw 187:92cbb9eec47b 51 int ret = mbed_getc(_file);
apluscw 187:92cbb9eec47b 52 unlock();
apluscw 187:92cbb9eec47b 53 return ret;
apluscw 187:92cbb9eec47b 54 }
apluscw 187:92cbb9eec47b 55 char* Stream::gets(char *s, int size) {
apluscw 187:92cbb9eec47b 56 lock();
apluscw 187:92cbb9eec47b 57 fflush(_file);
apluscw 187:92cbb9eec47b 58 char *ret = mbed_gets(s,size,_file);
apluscw 187:92cbb9eec47b 59 unlock();
apluscw 187:92cbb9eec47b 60 return ret;
apluscw 187:92cbb9eec47b 61 }
apluscw 187:92cbb9eec47b 62
apluscw 187:92cbb9eec47b 63 int Stream::close() {
apluscw 187:92cbb9eec47b 64 return 0;
apluscw 187:92cbb9eec47b 65 }
apluscw 187:92cbb9eec47b 66
apluscw 187:92cbb9eec47b 67 ssize_t Stream::write(const void* buffer, size_t length) {
apluscw 187:92cbb9eec47b 68 const char* ptr = (const char*)buffer;
apluscw 187:92cbb9eec47b 69 const char* end = ptr + length;
apluscw 187:92cbb9eec47b 70
apluscw 187:92cbb9eec47b 71 lock();
apluscw 187:92cbb9eec47b 72 while (ptr != end) {
apluscw 187:92cbb9eec47b 73 if (_putc(*ptr++) == EOF) {
apluscw 187:92cbb9eec47b 74 break;
apluscw 187:92cbb9eec47b 75 }
apluscw 187:92cbb9eec47b 76 }
apluscw 187:92cbb9eec47b 77 unlock();
apluscw 187:92cbb9eec47b 78
apluscw 187:92cbb9eec47b 79 return ptr - (const char*)buffer;
apluscw 187:92cbb9eec47b 80 }
apluscw 187:92cbb9eec47b 81
apluscw 187:92cbb9eec47b 82 ssize_t Stream::read(void* buffer, size_t length) {
apluscw 187:92cbb9eec47b 83 char* ptr = (char*)buffer;
apluscw 187:92cbb9eec47b 84 char* end = ptr + length;
apluscw 187:92cbb9eec47b 85
apluscw 187:92cbb9eec47b 86 lock();
apluscw 187:92cbb9eec47b 87 while (ptr != end) {
apluscw 187:92cbb9eec47b 88 int c = _getc();
apluscw 187:92cbb9eec47b 89 if (c==EOF) break;
apluscw 187:92cbb9eec47b 90 *ptr++ = c;
apluscw 187:92cbb9eec47b 91 }
apluscw 187:92cbb9eec47b 92 unlock();
apluscw 187:92cbb9eec47b 93
apluscw 187:92cbb9eec47b 94 return ptr - (const char*)buffer;
apluscw 187:92cbb9eec47b 95 }
apluscw 187:92cbb9eec47b 96
apluscw 187:92cbb9eec47b 97 off_t Stream::lseek(off_t offset, int whence) {
apluscw 187:92cbb9eec47b 98 return 0;
apluscw 187:92cbb9eec47b 99 }
apluscw 187:92cbb9eec47b 100
apluscw 187:92cbb9eec47b 101 int Stream::isatty() {
apluscw 187:92cbb9eec47b 102 return 0;
apluscw 187:92cbb9eec47b 103 }
apluscw 187:92cbb9eec47b 104
apluscw 187:92cbb9eec47b 105 int Stream::fsync() {
apluscw 187:92cbb9eec47b 106 return 0;
apluscw 187:92cbb9eec47b 107 }
apluscw 187:92cbb9eec47b 108
apluscw 187:92cbb9eec47b 109 off_t Stream::flen() {
apluscw 187:92cbb9eec47b 110 return 0;
apluscw 187:92cbb9eec47b 111 }
apluscw 187:92cbb9eec47b 112
apluscw 187:92cbb9eec47b 113 int Stream::printf(const char* format, ...) {
apluscw 187:92cbb9eec47b 114 lock();
apluscw 187:92cbb9eec47b 115 std::va_list arg;
apluscw 187:92cbb9eec47b 116 va_start(arg, format);
apluscw 187:92cbb9eec47b 117 fflush(_file);
apluscw 187:92cbb9eec47b 118 int r = vfprintf(_file, format, arg);
apluscw 187:92cbb9eec47b 119 va_end(arg);
apluscw 187:92cbb9eec47b 120 unlock();
apluscw 187:92cbb9eec47b 121 return r;
apluscw 187:92cbb9eec47b 122 }
apluscw 187:92cbb9eec47b 123
apluscw 187:92cbb9eec47b 124 int Stream::scanf(const char* format, ...) {
apluscw 187:92cbb9eec47b 125 lock();
apluscw 187:92cbb9eec47b 126 std::va_list arg;
apluscw 187:92cbb9eec47b 127 va_start(arg, format);
apluscw 187:92cbb9eec47b 128 fflush(_file);
apluscw 187:92cbb9eec47b 129 int r = vfscanf(_file, format, arg);
apluscw 187:92cbb9eec47b 130 va_end(arg);
apluscw 187:92cbb9eec47b 131 unlock();
apluscw 187:92cbb9eec47b 132 return r;
apluscw 187:92cbb9eec47b 133 }
apluscw 187:92cbb9eec47b 134
apluscw 187:92cbb9eec47b 135 int Stream::vprintf(const char* format, std::va_list args) {
apluscw 187:92cbb9eec47b 136 lock();
apluscw 187:92cbb9eec47b 137 fflush(_file);
apluscw 187:92cbb9eec47b 138 int r = vfprintf(_file, format, args);
apluscw 187:92cbb9eec47b 139 unlock();
apluscw 187:92cbb9eec47b 140 return r;
apluscw 187:92cbb9eec47b 141 }
apluscw 187:92cbb9eec47b 142
apluscw 187:92cbb9eec47b 143 int Stream::vscanf(const char* format, std::va_list args) {
apluscw 187:92cbb9eec47b 144 lock();
apluscw 187:92cbb9eec47b 145 fflush(_file);
apluscw 187:92cbb9eec47b 146 int r = vfscanf(_file, format, args);
apluscw 187:92cbb9eec47b 147 unlock();
apluscw 187:92cbb9eec47b 148 return r;
apluscw 187:92cbb9eec47b 149 }
apluscw 187:92cbb9eec47b 150
apluscw 187:92cbb9eec47b 151 } // namespace mbed