Mateusz Kowalik / Application_danix

,,

Fork of Application by Daniel Sygut

mbed-dev/drivers/Stream.cpp@10:41552d038a69, 2017-01-10 (annotated)

Committer:
Zaitsev
Date:
Tue Jan 10 20:42:26 2017 +0000
Revision:
10:41552d038a69
USB Serial bi-directional bridge

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Zaitsev 10:41552d038a69 1 /* mbed Microcontroller Library
Zaitsev 10:41552d038a69 2 * Copyright (c) 2006-2013 ARM Limited
Zaitsev 10:41552d038a69 3 *
Zaitsev 10:41552d038a69 4 * Licensed under the Apache License, Version 2.0 (the "License");
Zaitsev 10:41552d038a69 5 * you may not use this file except in compliance with the License.
Zaitsev 10:41552d038a69 6 * You may obtain a copy of the License at
Zaitsev 10:41552d038a69 7 *
Zaitsev 10:41552d038a69 8 * http://www.apache.org/licenses/LICENSE-2.0
Zaitsev 10:41552d038a69 9 *
Zaitsev 10:41552d038a69 10 * Unless required by applicable law or agreed to in writing, software
Zaitsev 10:41552d038a69 11 * distributed under the License is distributed on an "AS IS" BASIS,
Zaitsev 10:41552d038a69 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Zaitsev 10:41552d038a69 13 * See the License for the specific language governing permissions and
Zaitsev 10:41552d038a69 14 * limitations under the License.
Zaitsev 10:41552d038a69 15 */
Zaitsev 10:41552d038a69 16 #include "drivers/Stream.h"
Zaitsev 10:41552d038a69 17
Zaitsev 10:41552d038a69 18 namespace mbed {
Zaitsev 10:41552d038a69 19
Zaitsev 10:41552d038a69 20 Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
Zaitsev 10:41552d038a69 21 // No lock needed in constructor
Zaitsev 10:41552d038a69 22 /* open ourselves */
Zaitsev 10:41552d038a69 23 char buf[12]; /* :0x12345678 + null byte */
Zaitsev 10:41552d038a69 24 std::sprintf(buf, ":%p", this);
Zaitsev 10:41552d038a69 25 _file = std::fopen(buf, "w+");
Zaitsev 10:41552d038a69 26 mbed_set_unbuffered_stream(_file);
Zaitsev 10:41552d038a69 27 }
Zaitsev 10:41552d038a69 28
Zaitsev 10:41552d038a69 29 Stream::~Stream() {
Zaitsev 10:41552d038a69 30 // No lock can be used in destructor
Zaitsev 10:41552d038a69 31 fclose(_file);
Zaitsev 10:41552d038a69 32 }
Zaitsev 10:41552d038a69 33
Zaitsev 10:41552d038a69 34 int Stream::putc(int c) {
Zaitsev 10:41552d038a69 35 lock();
Zaitsev 10:41552d038a69 36 fflush(_file);
Zaitsev 10:41552d038a69 37 int ret = std::fputc(c, _file);
Zaitsev 10:41552d038a69 38 unlock();
Zaitsev 10:41552d038a69 39 return ret;
Zaitsev 10:41552d038a69 40 }
Zaitsev 10:41552d038a69 41 int Stream::puts(const char *s) {
Zaitsev 10:41552d038a69 42 lock();
Zaitsev 10:41552d038a69 43 fflush(_file);
Zaitsev 10:41552d038a69 44 int ret = std::fputs(s, _file);
Zaitsev 10:41552d038a69 45 unlock();
Zaitsev 10:41552d038a69 46 return ret;
Zaitsev 10:41552d038a69 47 }
Zaitsev 10:41552d038a69 48 int Stream::getc() {
Zaitsev 10:41552d038a69 49 lock();
Zaitsev 10:41552d038a69 50 fflush(_file);
Zaitsev 10:41552d038a69 51 int ret = mbed_getc(_file);
Zaitsev 10:41552d038a69 52 unlock();
Zaitsev 10:41552d038a69 53 return ret;
Zaitsev 10:41552d038a69 54 }
Zaitsev 10:41552d038a69 55 char* Stream::gets(char *s, int size) {
Zaitsev 10:41552d038a69 56 lock();
Zaitsev 10:41552d038a69 57 fflush(_file);
Zaitsev 10:41552d038a69 58 char *ret = mbed_gets(s,size,_file);
Zaitsev 10:41552d038a69 59 unlock();
Zaitsev 10:41552d038a69 60 return ret;
Zaitsev 10:41552d038a69 61 }
Zaitsev 10:41552d038a69 62
Zaitsev 10:41552d038a69 63 int Stream::close() {
Zaitsev 10:41552d038a69 64 return 0;
Zaitsev 10:41552d038a69 65 }
Zaitsev 10:41552d038a69 66
Zaitsev 10:41552d038a69 67 ssize_t Stream::write(const void* buffer, size_t length) {
Zaitsev 10:41552d038a69 68 const char* ptr = (const char*)buffer;
Zaitsev 10:41552d038a69 69 const char* end = ptr + length;
Zaitsev 10:41552d038a69 70
Zaitsev 10:41552d038a69 71 lock();
Zaitsev 10:41552d038a69 72 while (ptr != end) {
Zaitsev 10:41552d038a69 73 if (_putc(*ptr++) == EOF) {
Zaitsev 10:41552d038a69 74 break;
Zaitsev 10:41552d038a69 75 }
Zaitsev 10:41552d038a69 76 }
Zaitsev 10:41552d038a69 77 unlock();
Zaitsev 10:41552d038a69 78
Zaitsev 10:41552d038a69 79 return ptr - (const char*)buffer;
Zaitsev 10:41552d038a69 80 }
Zaitsev 10:41552d038a69 81
Zaitsev 10:41552d038a69 82 ssize_t Stream::read(void* buffer, size_t length) {
Zaitsev 10:41552d038a69 83 char* ptr = (char*)buffer;
Zaitsev 10:41552d038a69 84 char* end = ptr + length;
Zaitsev 10:41552d038a69 85
Zaitsev 10:41552d038a69 86 lock();
Zaitsev 10:41552d038a69 87 while (ptr != end) {
Zaitsev 10:41552d038a69 88 int c = _getc();
Zaitsev 10:41552d038a69 89 if (c==EOF) break;
Zaitsev 10:41552d038a69 90 *ptr++ = c;
Zaitsev 10:41552d038a69 91 }
Zaitsev 10:41552d038a69 92 unlock();
Zaitsev 10:41552d038a69 93
Zaitsev 10:41552d038a69 94 return ptr - (const char*)buffer;
Zaitsev 10:41552d038a69 95 }
Zaitsev 10:41552d038a69 96
Zaitsev 10:41552d038a69 97 off_t Stream::lseek(off_t offset, int whence) {
Zaitsev 10:41552d038a69 98 return 0;
Zaitsev 10:41552d038a69 99 }
Zaitsev 10:41552d038a69 100
Zaitsev 10:41552d038a69 101 int Stream::isatty() {
Zaitsev 10:41552d038a69 102 return 0;
Zaitsev 10:41552d038a69 103 }
Zaitsev 10:41552d038a69 104
Zaitsev 10:41552d038a69 105 int Stream::fsync() {
Zaitsev 10:41552d038a69 106 return 0;
Zaitsev 10:41552d038a69 107 }
Zaitsev 10:41552d038a69 108
Zaitsev 10:41552d038a69 109 off_t Stream::flen() {
Zaitsev 10:41552d038a69 110 return 0;
Zaitsev 10:41552d038a69 111 }
Zaitsev 10:41552d038a69 112
Zaitsev 10:41552d038a69 113 int Stream::printf(const char* format, ...) {
Zaitsev 10:41552d038a69 114 lock();
Zaitsev 10:41552d038a69 115 std::va_list arg;
Zaitsev 10:41552d038a69 116 va_start(arg, format);
Zaitsev 10:41552d038a69 117 fflush(_file);
Zaitsev 10:41552d038a69 118 int r = vfprintf(_file, format, arg);
Zaitsev 10:41552d038a69 119 va_end(arg);
Zaitsev 10:41552d038a69 120 unlock();
Zaitsev 10:41552d038a69 121 return r;
Zaitsev 10:41552d038a69 122 }
Zaitsev 10:41552d038a69 123
Zaitsev 10:41552d038a69 124 int Stream::scanf(const char* format, ...) {
Zaitsev 10:41552d038a69 125 lock();
Zaitsev 10:41552d038a69 126 std::va_list arg;
Zaitsev 10:41552d038a69 127 va_start(arg, format);
Zaitsev 10:41552d038a69 128 fflush(_file);
Zaitsev 10:41552d038a69 129 int r = vfscanf(_file, format, arg);
Zaitsev 10:41552d038a69 130 va_end(arg);
Zaitsev 10:41552d038a69 131 unlock();
Zaitsev 10:41552d038a69 132 return r;
Zaitsev 10:41552d038a69 133 }
Zaitsev 10:41552d038a69 134
Zaitsev 10:41552d038a69 135 int Stream::vprintf(const char* format, std::va_list args) {
Zaitsev 10:41552d038a69 136 lock();
Zaitsev 10:41552d038a69 137 fflush(_file);
Zaitsev 10:41552d038a69 138 int r = vfprintf(_file, format, args);
Zaitsev 10:41552d038a69 139 unlock();
Zaitsev 10:41552d038a69 140 return r;
Zaitsev 10:41552d038a69 141 }
Zaitsev 10:41552d038a69 142
Zaitsev 10:41552d038a69 143 int Stream::vscanf(const char* format, std::va_list args) {
Zaitsev 10:41552d038a69 144 lock();
Zaitsev 10:41552d038a69 145 fflush(_file);
Zaitsev 10:41552d038a69 146 int r = vfscanf(_file, format, args);
Zaitsev 10:41552d038a69 147 unlock();
Zaitsev 10:41552d038a69 148 return r;
Zaitsev 10:41552d038a69 149 }
Zaitsev 10:41552d038a69 150
Zaitsev 10:41552d038a69 151 } // namespace mbed