PHung Tung / SRC_STM32F7

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Dependents:   WAV

common/Stream.cpp@0:e87aa4c49e95, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 21:51:46 2019 +0000
Revision:
0:e87aa4c49e95
libray

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phungductung 0:e87aa4c49e95 1 /* mbed Microcontroller Library
phungductung 0:e87aa4c49e95 2 * Copyright (c) 2006-2013 ARM Limited
phungductung 0:e87aa4c49e95 3 *
phungductung 0:e87aa4c49e95 4 * Licensed under the Apache License, Version 2.0 (the "License");
phungductung 0:e87aa4c49e95 5 * you may not use this file except in compliance with the License.
phungductung 0:e87aa4c49e95 6 * You may obtain a copy of the License at
phungductung 0:e87aa4c49e95 7 *
phungductung 0:e87aa4c49e95 8 * http://www.apache.org/licenses/LICENSE-2.0
phungductung 0:e87aa4c49e95 9 *
phungductung 0:e87aa4c49e95 10 * Unless required by applicable law or agreed to in writing, software
phungductung 0:e87aa4c49e95 11 * distributed under the License is distributed on an "AS IS" BASIS,
phungductung 0:e87aa4c49e95 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
phungductung 0:e87aa4c49e95 13 * See the License for the specific language governing permissions and
phungductung 0:e87aa4c49e95 14 * limitations under the License.
phungductung 0:e87aa4c49e95 15 */
phungductung 0:e87aa4c49e95 16 #include "Stream.h"
phungductung 0:e87aa4c49e95 17
phungductung 0:e87aa4c49e95 18 namespace mbed {
phungductung 0:e87aa4c49e95 19
phungductung 0:e87aa4c49e95 20 Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
phungductung 0:e87aa4c49e95 21 /* open ourselves */
phungductung 0:e87aa4c49e95 22 char buf[12]; /* :0x12345678 + null byte */
phungductung 0:e87aa4c49e95 23 std::sprintf(buf, ":%p", this);
phungductung 0:e87aa4c49e95 24 _file = std::fopen(buf, "w+");
phungductung 0:e87aa4c49e95 25 mbed_set_unbuffered_stream(_file);
phungductung 0:e87aa4c49e95 26 }
phungductung 0:e87aa4c49e95 27
phungductung 0:e87aa4c49e95 28 Stream::~Stream() {
phungductung 0:e87aa4c49e95 29 fclose(_file);
phungductung 0:e87aa4c49e95 30 }
phungductung 0:e87aa4c49e95 31
phungductung 0:e87aa4c49e95 32 int Stream::putc(int c) {
phungductung 0:e87aa4c49e95 33 fflush(_file);
phungductung 0:e87aa4c49e95 34 return std::fputc(c, _file);
phungductung 0:e87aa4c49e95 35 }
phungductung 0:e87aa4c49e95 36 int Stream::puts(const char *s) {
phungductung 0:e87aa4c49e95 37 fflush(_file);
phungductung 0:e87aa4c49e95 38 return std::fputs(s, _file);
phungductung 0:e87aa4c49e95 39 }
phungductung 0:e87aa4c49e95 40 int Stream::getc() {
phungductung 0:e87aa4c49e95 41 fflush(_file);
phungductung 0:e87aa4c49e95 42 return mbed_getc(_file);
phungductung 0:e87aa4c49e95 43 }
phungductung 0:e87aa4c49e95 44 char* Stream::gets(char *s, int size) {
phungductung 0:e87aa4c49e95 45 fflush(_file);
phungductung 0:e87aa4c49e95 46 return mbed_gets(s,size,_file);
phungductung 0:e87aa4c49e95 47 }
phungductung 0:e87aa4c49e95 48
phungductung 0:e87aa4c49e95 49 int Stream::close() {
phungductung 0:e87aa4c49e95 50 return 0;
phungductung 0:e87aa4c49e95 51 }
phungductung 0:e87aa4c49e95 52
phungductung 0:e87aa4c49e95 53 ssize_t Stream::write(const void* buffer, size_t length) {
phungductung 0:e87aa4c49e95 54 const char* ptr = (const char*)buffer;
phungductung 0:e87aa4c49e95 55 const char* end = ptr + length;
phungductung 0:e87aa4c49e95 56 while (ptr != end) {
phungductung 0:e87aa4c49e95 57 if (_putc(*ptr++) == EOF) {
phungductung 0:e87aa4c49e95 58 break;
phungductung 0:e87aa4c49e95 59 }
phungductung 0:e87aa4c49e95 60 }
phungductung 0:e87aa4c49e95 61 return ptr - (const char*)buffer;
phungductung 0:e87aa4c49e95 62 }
phungductung 0:e87aa4c49e95 63
phungductung 0:e87aa4c49e95 64 ssize_t Stream::read(void* buffer, size_t length) {
phungductung 0:e87aa4c49e95 65 char* ptr = (char*)buffer;
phungductung 0:e87aa4c49e95 66 char* end = ptr + length;
phungductung 0:e87aa4c49e95 67 while (ptr != end) {
phungductung 0:e87aa4c49e95 68 int c = _getc();
phungductung 0:e87aa4c49e95 69 if (c==EOF) break;
phungductung 0:e87aa4c49e95 70 *ptr++ = c;
phungductung 0:e87aa4c49e95 71 }
phungductung 0:e87aa4c49e95 72 return ptr - (const char*)buffer;
phungductung 0:e87aa4c49e95 73 }
phungductung 0:e87aa4c49e95 74
phungductung 0:e87aa4c49e95 75 off_t Stream::lseek(off_t offset, int whence) {
phungductung 0:e87aa4c49e95 76 return 0;
phungductung 0:e87aa4c49e95 77 }
phungductung 0:e87aa4c49e95 78
phungductung 0:e87aa4c49e95 79 int Stream::isatty() {
phungductung 0:e87aa4c49e95 80 return 0;
phungductung 0:e87aa4c49e95 81 }
phungductung 0:e87aa4c49e95 82
phungductung 0:e87aa4c49e95 83 int Stream::fsync() {
phungductung 0:e87aa4c49e95 84 return 0;
phungductung 0:e87aa4c49e95 85 }
phungductung 0:e87aa4c49e95 86
phungductung 0:e87aa4c49e95 87 off_t Stream::flen() {
phungductung 0:e87aa4c49e95 88 return 0;
phungductung 0:e87aa4c49e95 89 }
phungductung 0:e87aa4c49e95 90
phungductung 0:e87aa4c49e95 91 int Stream::printf(const char* format, ...) {
phungductung 0:e87aa4c49e95 92 std::va_list arg;
phungductung 0:e87aa4c49e95 93 va_start(arg, format);
phungductung 0:e87aa4c49e95 94 fflush(_file);
phungductung 0:e87aa4c49e95 95 int r = vfprintf(_file, format, arg);
phungductung 0:e87aa4c49e95 96 va_end(arg);
phungductung 0:e87aa4c49e95 97 return r;
phungductung 0:e87aa4c49e95 98 }
phungductung 0:e87aa4c49e95 99
phungductung 0:e87aa4c49e95 100 int Stream::scanf(const char* format, ...) {
phungductung 0:e87aa4c49e95 101 std::va_list arg;
phungductung 0:e87aa4c49e95 102 va_start(arg, format);
phungductung 0:e87aa4c49e95 103 fflush(_file);
phungductung 0:e87aa4c49e95 104 int r = vfscanf(_file, format, arg);
phungductung 0:e87aa4c49e95 105 va_end(arg);
phungductung 0:e87aa4c49e95 106 return r;
phungductung 0:e87aa4c49e95 107 }
phungductung 0:e87aa4c49e95 108
phungductung 0:e87aa4c49e95 109 int Stream::vprintf(const char* format, std::va_list args) {
phungductung 0:e87aa4c49e95 110 fflush(_file);
phungductung 0:e87aa4c49e95 111 int r = vfprintf(_file, format, args);
phungductung 0:e87aa4c49e95 112 return r;
phungductung 0:e87aa4c49e95 113 }
phungductung 0:e87aa4c49e95 114
phungductung 0:e87aa4c49e95 115 int Stream::vscanf(const char* format, std::va_list args) {
phungductung 0:e87aa4c49e95 116 fflush(_file);
phungductung 0:e87aa4c49e95 117 int r = vfscanf(_file, format, args);
phungductung 0:e87aa4c49e95 118 return r;
phungductung 0:e87aa4c49e95 119 }
phungductung 0:e87aa4c49e95 120
phungductung 0:e87aa4c49e95 121 } // namespace mbed