ON Semiconductor / mbed-os

5.2.1 - Updated I2C files

Dependents:   mbed-TFT-example-NCS36510 mbed-Accelerometer-example-NCS36510 mbed-Accelerometer-example-NCS36510

drivers/Stream.cpp@0:098463de4c5d, 2017-01-25 (annotated)

Committer:
group-onsemi
Date:
Wed Jan 25 20:34:15 2017 +0000
Revision:
0:098463de4c5d
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
group-onsemi 0:098463de4c5d 1 /* mbed Microcontroller Library
group-onsemi 0:098463de4c5d 2 * Copyright (c) 2006-2013 ARM Limited
group-onsemi 0:098463de4c5d 3 *
group-onsemi 0:098463de4c5d 4 * Licensed under the Apache License, Version 2.0 (the "License");
group-onsemi 0:098463de4c5d 5 * you may not use this file except in compliance with the License.
group-onsemi 0:098463de4c5d 6 * You may obtain a copy of the License at
group-onsemi 0:098463de4c5d 7 *
group-onsemi 0:098463de4c5d 8 * http://www.apache.org/licenses/LICENSE-2.0
group-onsemi 0:098463de4c5d 9 *
group-onsemi 0:098463de4c5d 10 * Unless required by applicable law or agreed to in writing, software
group-onsemi 0:098463de4c5d 11 * distributed under the License is distributed on an "AS IS" BASIS,
group-onsemi 0:098463de4c5d 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
group-onsemi 0:098463de4c5d 13 * See the License for the specific language governing permissions and
group-onsemi 0:098463de4c5d 14 * limitations under the License.
group-onsemi 0:098463de4c5d 15 */
group-onsemi 0:098463de4c5d 16 #include "drivers/Stream.h"
group-onsemi 0:098463de4c5d 17
group-onsemi 0:098463de4c5d 18 namespace mbed {
group-onsemi 0:098463de4c5d 19
group-onsemi 0:098463de4c5d 20 Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
group-onsemi 0:098463de4c5d 21 // No lock needed in constructor
group-onsemi 0:098463de4c5d 22 /* open ourselves */
group-onsemi 0:098463de4c5d 23 char buf[12]; /* :0x12345678 + null byte */
group-onsemi 0:098463de4c5d 24 std::sprintf(buf, ":%p", this);
group-onsemi 0:098463de4c5d 25 _file = std::fopen(buf, "w+");
group-onsemi 0:098463de4c5d 26 mbed_set_unbuffered_stream(_file);
group-onsemi 0:098463de4c5d 27 }
group-onsemi 0:098463de4c5d 28
group-onsemi 0:098463de4c5d 29 Stream::~Stream() {
group-onsemi 0:098463de4c5d 30 // No lock can be used in destructor
group-onsemi 0:098463de4c5d 31 fclose(_file);
group-onsemi 0:098463de4c5d 32 }
group-onsemi 0:098463de4c5d 33
group-onsemi 0:098463de4c5d 34 int Stream::putc(int c) {
group-onsemi 0:098463de4c5d 35 lock();
group-onsemi 0:098463de4c5d 36 fflush(_file);
group-onsemi 0:098463de4c5d 37 int ret = std::fputc(c, _file);
group-onsemi 0:098463de4c5d 38 unlock();
group-onsemi 0:098463de4c5d 39 return ret;
group-onsemi 0:098463de4c5d 40 }
group-onsemi 0:098463de4c5d 41 int Stream::puts(const char *s) {
group-onsemi 0:098463de4c5d 42 lock();
group-onsemi 0:098463de4c5d 43 fflush(_file);
group-onsemi 0:098463de4c5d 44 int ret = std::fputs(s, _file);
group-onsemi 0:098463de4c5d 45 unlock();
group-onsemi 0:098463de4c5d 46 return ret;
group-onsemi 0:098463de4c5d 47 }
group-onsemi 0:098463de4c5d 48 int Stream::getc() {
group-onsemi 0:098463de4c5d 49 lock();
group-onsemi 0:098463de4c5d 50 fflush(_file);
group-onsemi 0:098463de4c5d 51 int ret = mbed_getc(_file);
group-onsemi 0:098463de4c5d 52 unlock();
group-onsemi 0:098463de4c5d 53 return ret;
group-onsemi 0:098463de4c5d 54 }
group-onsemi 0:098463de4c5d 55 char* Stream::gets(char *s, int size) {
group-onsemi 0:098463de4c5d 56 lock();
group-onsemi 0:098463de4c5d 57 fflush(_file);
group-onsemi 0:098463de4c5d 58 char *ret = mbed_gets(s,size,_file);
group-onsemi 0:098463de4c5d 59 unlock();
group-onsemi 0:098463de4c5d 60 return ret;
group-onsemi 0:098463de4c5d 61 }
group-onsemi 0:098463de4c5d 62
group-onsemi 0:098463de4c5d 63 int Stream::close() {
group-onsemi 0:098463de4c5d 64 return 0;
group-onsemi 0:098463de4c5d 65 }
group-onsemi 0:098463de4c5d 66
group-onsemi 0:098463de4c5d 67 ssize_t Stream::write(const void* buffer, size_t length) {
group-onsemi 0:098463de4c5d 68 const char* ptr = (const char*)buffer;
group-onsemi 0:098463de4c5d 69 const char* end = ptr + length;
group-onsemi 0:098463de4c5d 70
group-onsemi 0:098463de4c5d 71 lock();
group-onsemi 0:098463de4c5d 72 while (ptr != end) {
group-onsemi 0:098463de4c5d 73 if (_putc(*ptr++) == EOF) {
group-onsemi 0:098463de4c5d 74 break;
group-onsemi 0:098463de4c5d 75 }
group-onsemi 0:098463de4c5d 76 }
group-onsemi 0:098463de4c5d 77 unlock();
group-onsemi 0:098463de4c5d 78
group-onsemi 0:098463de4c5d 79 return ptr - (const char*)buffer;
group-onsemi 0:098463de4c5d 80 }
group-onsemi 0:098463de4c5d 81
group-onsemi 0:098463de4c5d 82 ssize_t Stream::read(void* buffer, size_t length) {
group-onsemi 0:098463de4c5d 83 char* ptr = (char*)buffer;
group-onsemi 0:098463de4c5d 84 char* end = ptr + length;
group-onsemi 0:098463de4c5d 85
group-onsemi 0:098463de4c5d 86 lock();
group-onsemi 0:098463de4c5d 87 while (ptr != end) {
group-onsemi 0:098463de4c5d 88 int c = _getc();
group-onsemi 0:098463de4c5d 89 if (c==EOF) break;
group-onsemi 0:098463de4c5d 90 *ptr++ = c;
group-onsemi 0:098463de4c5d 91 }
group-onsemi 0:098463de4c5d 92 unlock();
group-onsemi 0:098463de4c5d 93
group-onsemi 0:098463de4c5d 94 return ptr - (const char*)buffer;
group-onsemi 0:098463de4c5d 95 }
group-onsemi 0:098463de4c5d 96
group-onsemi 0:098463de4c5d 97 off_t Stream::lseek(off_t offset, int whence) {
group-onsemi 0:098463de4c5d 98 return 0;
group-onsemi 0:098463de4c5d 99 }
group-onsemi 0:098463de4c5d 100
group-onsemi 0:098463de4c5d 101 int Stream::isatty() {
group-onsemi 0:098463de4c5d 102 return 0;
group-onsemi 0:098463de4c5d 103 }
group-onsemi 0:098463de4c5d 104
group-onsemi 0:098463de4c5d 105 int Stream::fsync() {
group-onsemi 0:098463de4c5d 106 return 0;
group-onsemi 0:098463de4c5d 107 }
group-onsemi 0:098463de4c5d 108
group-onsemi 0:098463de4c5d 109 off_t Stream::flen() {
group-onsemi 0:098463de4c5d 110 return 0;
group-onsemi 0:098463de4c5d 111 }
group-onsemi 0:098463de4c5d 112
group-onsemi 0:098463de4c5d 113 int Stream::printf(const char* format, ...) {
group-onsemi 0:098463de4c5d 114 lock();
group-onsemi 0:098463de4c5d 115 std::va_list arg;
group-onsemi 0:098463de4c5d 116 va_start(arg, format);
group-onsemi 0:098463de4c5d 117 fflush(_file);
group-onsemi 0:098463de4c5d 118 int r = vfprintf(_file, format, arg);
group-onsemi 0:098463de4c5d 119 va_end(arg);
group-onsemi 0:098463de4c5d 120 unlock();
group-onsemi 0:098463de4c5d 121 return r;
group-onsemi 0:098463de4c5d 122 }
group-onsemi 0:098463de4c5d 123
group-onsemi 0:098463de4c5d 124 int Stream::scanf(const char* format, ...) {
group-onsemi 0:098463de4c5d 125 lock();
group-onsemi 0:098463de4c5d 126 std::va_list arg;
group-onsemi 0:098463de4c5d 127 va_start(arg, format);
group-onsemi 0:098463de4c5d 128 fflush(_file);
group-onsemi 0:098463de4c5d 129 int r = vfscanf(_file, format, arg);
group-onsemi 0:098463de4c5d 130 va_end(arg);
group-onsemi 0:098463de4c5d 131 unlock();
group-onsemi 0:098463de4c5d 132 return r;
group-onsemi 0:098463de4c5d 133 }
group-onsemi 0:098463de4c5d 134
group-onsemi 0:098463de4c5d 135 int Stream::vprintf(const char* format, std::va_list args) {
group-onsemi 0:098463de4c5d 136 lock();
group-onsemi 0:098463de4c5d 137 fflush(_file);
group-onsemi 0:098463de4c5d 138 int r = vfprintf(_file, format, args);
group-onsemi 0:098463de4c5d 139 unlock();
group-onsemi 0:098463de4c5d 140 return r;
group-onsemi 0:098463de4c5d 141 }
group-onsemi 0:098463de4c5d 142
group-onsemi 0:098463de4c5d 143 int Stream::vscanf(const char* format, std::va_list args) {
group-onsemi 0:098463de4c5d 144 lock();
group-onsemi 0:098463de4c5d 145 fflush(_file);
group-onsemi 0:098463de4c5d 146 int r = vfscanf(_file, format, args);
group-onsemi 0:098463de4c5d 147 unlock();
group-onsemi 0:098463de4c5d 148 return r;
group-onsemi 0:098463de4c5d 149 }
group-onsemi 0:098463de4c5d 150
group-onsemi 0:098463de4c5d 151 } // namespace mbed