PHung Tung / WAV2

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Dependencies:   F746_GUI SD_PlayerSkeleton F746_SAI_IO

mbed_src_STM32F7/common/Stream.cpp@0:aa3fc5ad02f7, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 09:08:29 2019 +0000
Revision:
0:aa3fc5ad02f7
SPKT

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phungductung 0:aa3fc5ad02f7 1 /* mbed Microcontroller Library
phungductung 0:aa3fc5ad02f7 2 * Copyright (c) 2006-2013 ARM Limited
phungductung 0:aa3fc5ad02f7 3 *
phungductung 0:aa3fc5ad02f7 4 * Licensed under the Apache License, Version 2.0 (the "License");
phungductung 0:aa3fc5ad02f7 5 * you may not use this file except in compliance with the License.
phungductung 0:aa3fc5ad02f7 6 * You may obtain a copy of the License at
phungductung 0:aa3fc5ad02f7 7 *
phungductung 0:aa3fc5ad02f7 8 * http://www.apache.org/licenses/LICENSE-2.0
phungductung 0:aa3fc5ad02f7 9 *
phungductung 0:aa3fc5ad02f7 10 * Unless required by applicable law or agreed to in writing, software
phungductung 0:aa3fc5ad02f7 11 * distributed under the License is distributed on an "AS IS" BASIS,
phungductung 0:aa3fc5ad02f7 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
phungductung 0:aa3fc5ad02f7 13 * See the License for the specific language governing permissions and
phungductung 0:aa3fc5ad02f7 14 * limitations under the License.
phungductung 0:aa3fc5ad02f7 15 */
phungductung 0:aa3fc5ad02f7 16 #include "Stream.h"
phungductung 0:aa3fc5ad02f7 17
phungductung 0:aa3fc5ad02f7 18 namespace mbed {
phungductung 0:aa3fc5ad02f7 19
phungductung 0:aa3fc5ad02f7 20 Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
phungductung 0:aa3fc5ad02f7 21 /* open ourselves */
phungductung 0:aa3fc5ad02f7 22 char buf[12]; /* :0x12345678 + null byte */
phungductung 0:aa3fc5ad02f7 23 std::sprintf(buf, ":%p", this);
phungductung 0:aa3fc5ad02f7 24 _file = std::fopen(buf, "w+");
phungductung 0:aa3fc5ad02f7 25 mbed_set_unbuffered_stream(_file);
phungductung 0:aa3fc5ad02f7 26 }
phungductung 0:aa3fc5ad02f7 27
phungductung 0:aa3fc5ad02f7 28 Stream::~Stream() {
phungductung 0:aa3fc5ad02f7 29 fclose(_file);
phungductung 0:aa3fc5ad02f7 30 }
phungductung 0:aa3fc5ad02f7 31
phungductung 0:aa3fc5ad02f7 32 int Stream::putc(int c) {
phungductung 0:aa3fc5ad02f7 33 fflush(_file);
phungductung 0:aa3fc5ad02f7 34 return std::fputc(c, _file);
phungductung 0:aa3fc5ad02f7 35 }
phungductung 0:aa3fc5ad02f7 36 int Stream::puts(const char *s) {
phungductung 0:aa3fc5ad02f7 37 fflush(_file);
phungductung 0:aa3fc5ad02f7 38 return std::fputs(s, _file);
phungductung 0:aa3fc5ad02f7 39 }
phungductung 0:aa3fc5ad02f7 40 int Stream::getc() {
phungductung 0:aa3fc5ad02f7 41 fflush(_file);
phungductung 0:aa3fc5ad02f7 42 return mbed_getc(_file);
phungductung 0:aa3fc5ad02f7 43 }
phungductung 0:aa3fc5ad02f7 44 char* Stream::gets(char *s, int size) {
phungductung 0:aa3fc5ad02f7 45 fflush(_file);
phungductung 0:aa3fc5ad02f7 46 return mbed_gets(s,size,_file);
phungductung 0:aa3fc5ad02f7 47 }
phungductung 0:aa3fc5ad02f7 48
phungductung 0:aa3fc5ad02f7 49 int Stream::close() {
phungductung 0:aa3fc5ad02f7 50 return 0;
phungductung 0:aa3fc5ad02f7 51 }
phungductung 0:aa3fc5ad02f7 52
phungductung 0:aa3fc5ad02f7 53 ssize_t Stream::write(const void* buffer, size_t length) {
phungductung 0:aa3fc5ad02f7 54 const char* ptr = (const char*)buffer;
phungductung 0:aa3fc5ad02f7 55 const char* end = ptr + length;
phungductung 0:aa3fc5ad02f7 56 while (ptr != end) {
phungductung 0:aa3fc5ad02f7 57 if (_putc(*ptr++) == EOF) {
phungductung 0:aa3fc5ad02f7 58 break;
phungductung 0:aa3fc5ad02f7 59 }
phungductung 0:aa3fc5ad02f7 60 }
phungductung 0:aa3fc5ad02f7 61 return ptr - (const char*)buffer;
phungductung 0:aa3fc5ad02f7 62 }
phungductung 0:aa3fc5ad02f7 63
phungductung 0:aa3fc5ad02f7 64 ssize_t Stream::read(void* buffer, size_t length) {
phungductung 0:aa3fc5ad02f7 65 char* ptr = (char*)buffer;
phungductung 0:aa3fc5ad02f7 66 char* end = ptr + length;
phungductung 0:aa3fc5ad02f7 67 while (ptr != end) {
phungductung 0:aa3fc5ad02f7 68 int c = _getc();
phungductung 0:aa3fc5ad02f7 69 if (c==EOF) break;
phungductung 0:aa3fc5ad02f7 70 *ptr++ = c;
phungductung 0:aa3fc5ad02f7 71 }
phungductung 0:aa3fc5ad02f7 72 return ptr - (const char*)buffer;
phungductung 0:aa3fc5ad02f7 73 }
phungductung 0:aa3fc5ad02f7 74
phungductung 0:aa3fc5ad02f7 75 off_t Stream::lseek(off_t offset, int whence) {
phungductung 0:aa3fc5ad02f7 76 return 0;
phungductung 0:aa3fc5ad02f7 77 }
phungductung 0:aa3fc5ad02f7 78
phungductung 0:aa3fc5ad02f7 79 int Stream::isatty() {
phungductung 0:aa3fc5ad02f7 80 return 0;
phungductung 0:aa3fc5ad02f7 81 }
phungductung 0:aa3fc5ad02f7 82
phungductung 0:aa3fc5ad02f7 83 int Stream::fsync() {
phungductung 0:aa3fc5ad02f7 84 return 0;
phungductung 0:aa3fc5ad02f7 85 }
phungductung 0:aa3fc5ad02f7 86
phungductung 0:aa3fc5ad02f7 87 off_t Stream::flen() {
phungductung 0:aa3fc5ad02f7 88 return 0;
phungductung 0:aa3fc5ad02f7 89 }
phungductung 0:aa3fc5ad02f7 90
phungductung 0:aa3fc5ad02f7 91 int Stream::printf(const char* format, ...) {
phungductung 0:aa3fc5ad02f7 92 std::va_list arg;
phungductung 0:aa3fc5ad02f7 93 va_start(arg, format);
phungductung 0:aa3fc5ad02f7 94 fflush(_file);
phungductung 0:aa3fc5ad02f7 95 int r = vfprintf(_file, format, arg);
phungductung 0:aa3fc5ad02f7 96 va_end(arg);
phungductung 0:aa3fc5ad02f7 97 return r;
phungductung 0:aa3fc5ad02f7 98 }
phungductung 0:aa3fc5ad02f7 99
phungductung 0:aa3fc5ad02f7 100 int Stream::scanf(const char* format, ...) {
phungductung 0:aa3fc5ad02f7 101 std::va_list arg;
phungductung 0:aa3fc5ad02f7 102 va_start(arg, format);
phungductung 0:aa3fc5ad02f7 103 fflush(_file);
phungductung 0:aa3fc5ad02f7 104 int r = vfscanf(_file, format, arg);
phungductung 0:aa3fc5ad02f7 105 va_end(arg);
phungductung 0:aa3fc5ad02f7 106 return r;
phungductung 0:aa3fc5ad02f7 107 }
phungductung 0:aa3fc5ad02f7 108
phungductung 0:aa3fc5ad02f7 109 int Stream::vprintf(const char* format, std::va_list args) {
phungductung 0:aa3fc5ad02f7 110 fflush(_file);
phungductung 0:aa3fc5ad02f7 111 int r = vfprintf(_file, format, args);
phungductung 0:aa3fc5ad02f7 112 return r;
phungductung 0:aa3fc5ad02f7 113 }
phungductung 0:aa3fc5ad02f7 114
phungductung 0:aa3fc5ad02f7 115 int Stream::vscanf(const char* format, std::va_list args) {
phungductung 0:aa3fc5ad02f7 116 fflush(_file);
phungductung 0:aa3fc5ad02f7 117 int r = vfscanf(_file, format, args);
phungductung 0:aa3fc5ad02f7 118 return r;
phungductung 0:aa3fc5ad02f7 119 }
phungductung 0:aa3fc5ad02f7 120
phungductung 0:aa3fc5ad02f7 121 } // namespace mbed