Tomo Yamanaka / mbed-dev

mbed library sources. Supersedes mbed-src. GR-PEACH runs on RAM.

Fork of mbed-dev by mbed official

common/Stream.cpp@0:9b334a45a8ff, 2015-10-01 (annotated)

Committer:
bogdanm
Date:
Thu Oct 01 15:25:22 2015 +0300
Revision:
0:9b334a45a8ff
Child:
28:8e1f0b362990
Initial commit on mbed-dev



Replaces mbed-src (now inactive)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 0:9b334a45a8ff 1 /* mbed Microcontroller Library
bogdanm 0:9b334a45a8ff 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 0:9b334a45a8ff 3 *
bogdanm 0:9b334a45a8ff 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 0:9b334a45a8ff 5 * you may not use this file except in compliance with the License.
bogdanm 0:9b334a45a8ff 6 * You may obtain a copy of the License at
bogdanm 0:9b334a45a8ff 7 *
bogdanm 0:9b334a45a8ff 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 0:9b334a45a8ff 9 *
bogdanm 0:9b334a45a8ff 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 0:9b334a45a8ff 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 0:9b334a45a8ff 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 0:9b334a45a8ff 13 * See the License for the specific language governing permissions and
bogdanm 0:9b334a45a8ff 14 * limitations under the License.
bogdanm 0:9b334a45a8ff 15 */
bogdanm 0:9b334a45a8ff 16 #include "Stream.h"
bogdanm 0:9b334a45a8ff 17
bogdanm 0:9b334a45a8ff 18 #include <cstdarg>
bogdanm 0:9b334a45a8ff 19
bogdanm 0:9b334a45a8ff 20 namespace mbed {
bogdanm 0:9b334a45a8ff 21
bogdanm 0:9b334a45a8ff 22 Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
bogdanm 0:9b334a45a8ff 23 /* open ourselves */
bogdanm 0:9b334a45a8ff 24 char buf[12]; /* :0x12345678 + null byte */
bogdanm 0:9b334a45a8ff 25 std::sprintf(buf, ":%p", this);
bogdanm 0:9b334a45a8ff 26 _file = std::fopen(buf, "w+");
bogdanm 0:9b334a45a8ff 27 mbed_set_unbuffered_stream(_file);
bogdanm 0:9b334a45a8ff 28 }
bogdanm 0:9b334a45a8ff 29
bogdanm 0:9b334a45a8ff 30 Stream::~Stream() {
bogdanm 0:9b334a45a8ff 31 fclose(_file);
bogdanm 0:9b334a45a8ff 32 }
bogdanm 0:9b334a45a8ff 33
bogdanm 0:9b334a45a8ff 34 int Stream::putc(int c) {
bogdanm 0:9b334a45a8ff 35 fflush(_file);
bogdanm 0:9b334a45a8ff 36 return std::fputc(c, _file);
bogdanm 0:9b334a45a8ff 37 }
bogdanm 0:9b334a45a8ff 38 int Stream::puts(const char *s) {
bogdanm 0:9b334a45a8ff 39 fflush(_file);
bogdanm 0:9b334a45a8ff 40 return std::fputs(s, _file);
bogdanm 0:9b334a45a8ff 41 }
bogdanm 0:9b334a45a8ff 42 int Stream::getc() {
bogdanm 0:9b334a45a8ff 43 fflush(_file);
bogdanm 0:9b334a45a8ff 44 return mbed_getc(_file);
bogdanm 0:9b334a45a8ff 45 }
bogdanm 0:9b334a45a8ff 46 char* Stream::gets(char *s, int size) {
bogdanm 0:9b334a45a8ff 47 fflush(_file);
bogdanm 0:9b334a45a8ff 48 return mbed_gets(s,size,_file);
bogdanm 0:9b334a45a8ff 49 }
bogdanm 0:9b334a45a8ff 50
bogdanm 0:9b334a45a8ff 51 int Stream::close() {
bogdanm 0:9b334a45a8ff 52 return 0;
bogdanm 0:9b334a45a8ff 53 }
bogdanm 0:9b334a45a8ff 54
bogdanm 0:9b334a45a8ff 55 ssize_t Stream::write(const void* buffer, size_t length) {
bogdanm 0:9b334a45a8ff 56 const char* ptr = (const char*)buffer;
bogdanm 0:9b334a45a8ff 57 const char* end = ptr + length;
bogdanm 0:9b334a45a8ff 58 while (ptr != end) {
bogdanm 0:9b334a45a8ff 59 if (_putc(*ptr++) == EOF) {
bogdanm 0:9b334a45a8ff 60 break;
bogdanm 0:9b334a45a8ff 61 }
bogdanm 0:9b334a45a8ff 62 }
bogdanm 0:9b334a45a8ff 63 return ptr - (const char*)buffer;
bogdanm 0:9b334a45a8ff 64 }
bogdanm 0:9b334a45a8ff 65
bogdanm 0:9b334a45a8ff 66 ssize_t Stream::read(void* buffer, size_t length) {
bogdanm 0:9b334a45a8ff 67 char* ptr = (char*)buffer;
bogdanm 0:9b334a45a8ff 68 char* end = ptr + length;
bogdanm 0:9b334a45a8ff 69 while (ptr != end) {
bogdanm 0:9b334a45a8ff 70 int c = _getc();
bogdanm 0:9b334a45a8ff 71 if (c==EOF) break;
bogdanm 0:9b334a45a8ff 72 *ptr++ = c;
bogdanm 0:9b334a45a8ff 73 }
bogdanm 0:9b334a45a8ff 74 return ptr - (const char*)buffer;
bogdanm 0:9b334a45a8ff 75 }
bogdanm 0:9b334a45a8ff 76
bogdanm 0:9b334a45a8ff 77 off_t Stream::lseek(off_t offset, int whence) {
bogdanm 0:9b334a45a8ff 78 return 0;
bogdanm 0:9b334a45a8ff 79 }
bogdanm 0:9b334a45a8ff 80
bogdanm 0:9b334a45a8ff 81 int Stream::isatty() {
bogdanm 0:9b334a45a8ff 82 return 0;
bogdanm 0:9b334a45a8ff 83 }
bogdanm 0:9b334a45a8ff 84
bogdanm 0:9b334a45a8ff 85 int Stream::fsync() {
bogdanm 0:9b334a45a8ff 86 return 0;
bogdanm 0:9b334a45a8ff 87 }
bogdanm 0:9b334a45a8ff 88
bogdanm 0:9b334a45a8ff 89 off_t Stream::flen() {
bogdanm 0:9b334a45a8ff 90 return 0;
bogdanm 0:9b334a45a8ff 91 }
bogdanm 0:9b334a45a8ff 92
bogdanm 0:9b334a45a8ff 93 int Stream::printf(const char* format, ...) {
bogdanm 0:9b334a45a8ff 94 std::va_list arg;
bogdanm 0:9b334a45a8ff 95 va_start(arg, format);
bogdanm 0:9b334a45a8ff 96 fflush(_file);
bogdanm 0:9b334a45a8ff 97 int r = vfprintf(_file, format, arg);
bogdanm 0:9b334a45a8ff 98 va_end(arg);
bogdanm 0:9b334a45a8ff 99 return r;
bogdanm 0:9b334a45a8ff 100 }
bogdanm 0:9b334a45a8ff 101
bogdanm 0:9b334a45a8ff 102 int Stream::scanf(const char* format, ...) {
bogdanm 0:9b334a45a8ff 103 std::va_list arg;
bogdanm 0:9b334a45a8ff 104 va_start(arg, format);
bogdanm 0:9b334a45a8ff 105 fflush(_file);
bogdanm 0:9b334a45a8ff 106 int r = vfscanf(_file, format, arg);
bogdanm 0:9b334a45a8ff 107 va_end(arg);
bogdanm 0:9b334a45a8ff 108 return r;
bogdanm 0:9b334a45a8ff 109 }
bogdanm 0:9b334a45a8ff 110
bogdanm 0:9b334a45a8ff 111 } // namespace mbed