the do / gr-peach-opencv-project

Opencv 3.1 project on GR-PEACH board

Fork of gr-peach-opencv-project by the do

platform/Stream.cpp@170:54ff26da7eb6, 2017-07-04 (annotated)

Committer:
thedo
Date:
Tue Jul 04 06:23:13 2017 +0000
Revision:
170:54ff26da7eb6
Parent:
166:3a9487d57a5c 
project opencv 3.1 on GR PEACH board, no use SD card.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
thedo 166:3a9487d57a5c 1 /* mbed Microcontroller Library
thedo 166:3a9487d57a5c 2 * Copyright (c) 2006-2013 ARM Limited
thedo 166:3a9487d57a5c 3 *
thedo 166:3a9487d57a5c 4 * Licensed under the Apache License, Version 2.0 (the "License");
thedo 166:3a9487d57a5c 5 * you may not use this file except in compliance with the License.
thedo 166:3a9487d57a5c 6 * You may obtain a copy of the License at
thedo 166:3a9487d57a5c 7 *
thedo 166:3a9487d57a5c 8 * http://www.apache.org/licenses/LICENSE-2.0
thedo 166:3a9487d57a5c 9 *
thedo 166:3a9487d57a5c 10 * Unless required by applicable law or agreed to in writing, software
thedo 166:3a9487d57a5c 11 * distributed under the License is distributed on an "AS IS" BASIS,
thedo 166:3a9487d57a5c 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
thedo 166:3a9487d57a5c 13 * See the License for the specific language governing permissions and
thedo 166:3a9487d57a5c 14 * limitations under the License.
thedo 166:3a9487d57a5c 15 */
thedo 166:3a9487d57a5c 16 #include "platform/Stream.h"
thedo 166:3a9487d57a5c 17 #include "platform/mbed_error.h"
thedo 166:3a9487d57a5c 18 #include <errno.h>
thedo 166:3a9487d57a5c 19
thedo 166:3a9487d57a5c 20 namespace mbed {
thedo 166:3a9487d57a5c 21
thedo 166:3a9487d57a5c 22 Stream::Stream(const char *name) : FileLike(name), _file(NULL) {
thedo 166:3a9487d57a5c 23 // No lock needed in constructor
thedo 166:3a9487d57a5c 24 /* open ourselves */
thedo 166:3a9487d57a5c 25 _file = fdopen(this, "w+");
thedo 166:3a9487d57a5c 26 // fdopen() will make us buffered because Stream::isatty()
thedo 166:3a9487d57a5c 27 // wrongly returns zero which is not being changed for
thedo 166:3a9487d57a5c 28 // backward compatibility
thedo 166:3a9487d57a5c 29 if (_file) {
thedo 166:3a9487d57a5c 30 mbed_set_unbuffered_stream(_file);
thedo 166:3a9487d57a5c 31 } else {
thedo 166:3a9487d57a5c 32 error("Stream obj failure, errno=%d\r\n", errno);
thedo 166:3a9487d57a5c 33 }
thedo 166:3a9487d57a5c 34 }
thedo 166:3a9487d57a5c 35
thedo 166:3a9487d57a5c 36 Stream::~Stream() {
thedo 166:3a9487d57a5c 37 // No lock can be used in destructor
thedo 166:3a9487d57a5c 38 fclose(_file);
thedo 166:3a9487d57a5c 39 }
thedo 166:3a9487d57a5c 40
thedo 166:3a9487d57a5c 41 int Stream::putc(int c) {
thedo 166:3a9487d57a5c 42 lock();
thedo 166:3a9487d57a5c 43 fflush(_file);
thedo 166:3a9487d57a5c 44 int ret = std::fputc(c, _file);
thedo 166:3a9487d57a5c 45 unlock();
thedo 166:3a9487d57a5c 46 return ret;
thedo 166:3a9487d57a5c 47 }
thedo 166:3a9487d57a5c 48 int Stream::puts(const char *s) {
thedo 166:3a9487d57a5c 49 lock();
thedo 166:3a9487d57a5c 50 fflush(_file);
thedo 166:3a9487d57a5c 51 int ret = std::fputs(s, _file);
thedo 166:3a9487d57a5c 52 unlock();
thedo 166:3a9487d57a5c 53 return ret;
thedo 166:3a9487d57a5c 54 }
thedo 166:3a9487d57a5c 55 int Stream::getc() {
thedo 166:3a9487d57a5c 56 lock();
thedo 166:3a9487d57a5c 57 fflush(_file);
thedo 166:3a9487d57a5c 58 int ret = mbed_getc(_file);
thedo 166:3a9487d57a5c 59 unlock();
thedo 166:3a9487d57a5c 60 return ret;
thedo 166:3a9487d57a5c 61 }
thedo 166:3a9487d57a5c 62 char* Stream::gets(char *s, int size) {
thedo 166:3a9487d57a5c 63 lock();
thedo 166:3a9487d57a5c 64 fflush(_file);
thedo 166:3a9487d57a5c 65 char *ret = mbed_gets(s,size,_file);
thedo 166:3a9487d57a5c 66 unlock();
thedo 166:3a9487d57a5c 67 return ret;
thedo 166:3a9487d57a5c 68 }
thedo 166:3a9487d57a5c 69
thedo 166:3a9487d57a5c 70 int Stream::close() {
thedo 166:3a9487d57a5c 71 return 0;
thedo 166:3a9487d57a5c 72 }
thedo 166:3a9487d57a5c 73
thedo 166:3a9487d57a5c 74 ssize_t Stream::write(const void* buffer, size_t length) {
thedo 166:3a9487d57a5c 75 const char* ptr = (const char*)buffer;
thedo 166:3a9487d57a5c 76 const char* end = ptr + length;
thedo 166:3a9487d57a5c 77
thedo 166:3a9487d57a5c 78 lock();
thedo 166:3a9487d57a5c 79 while (ptr != end) {
thedo 166:3a9487d57a5c 80 if (_putc(*ptr++) == EOF) {
thedo 166:3a9487d57a5c 81 break;
thedo 166:3a9487d57a5c 82 }
thedo 166:3a9487d57a5c 83 }
thedo 166:3a9487d57a5c 84 unlock();
thedo 166:3a9487d57a5c 85
thedo 166:3a9487d57a5c 86 return ptr - (const char*)buffer;
thedo 166:3a9487d57a5c 87 }
thedo 166:3a9487d57a5c 88
thedo 166:3a9487d57a5c 89 ssize_t Stream::read(void* buffer, size_t length) {
thedo 166:3a9487d57a5c 90 char* ptr = (char*)buffer;
thedo 166:3a9487d57a5c 91 char* end = ptr + length;
thedo 166:3a9487d57a5c 92
thedo 166:3a9487d57a5c 93 lock();
thedo 166:3a9487d57a5c 94 while (ptr != end) {
thedo 166:3a9487d57a5c 95 int c = _getc();
thedo 166:3a9487d57a5c 96 if (c==EOF) break;
thedo 166:3a9487d57a5c 97 *ptr++ = c;
thedo 166:3a9487d57a5c 98 }
thedo 166:3a9487d57a5c 99 unlock();
thedo 166:3a9487d57a5c 100
thedo 166:3a9487d57a5c 101 return ptr - (const char*)buffer;
thedo 166:3a9487d57a5c 102 }
thedo 166:3a9487d57a5c 103
thedo 166:3a9487d57a5c 104 off_t Stream::seek(off_t offset, int whence) {
thedo 166:3a9487d57a5c 105 return 0;
thedo 166:3a9487d57a5c 106 }
thedo 166:3a9487d57a5c 107
thedo 166:3a9487d57a5c 108 off_t Stream::tell() {
thedo 166:3a9487d57a5c 109 return 0;
thedo 166:3a9487d57a5c 110 }
thedo 166:3a9487d57a5c 111
thedo 166:3a9487d57a5c 112 void Stream::rewind() {
thedo 166:3a9487d57a5c 113 }
thedo 166:3a9487d57a5c 114
thedo 166:3a9487d57a5c 115 int Stream::isatty() {
thedo 166:3a9487d57a5c 116 return 0;
thedo 166:3a9487d57a5c 117 }
thedo 166:3a9487d57a5c 118
thedo 166:3a9487d57a5c 119 int Stream::sync() {
thedo 166:3a9487d57a5c 120 return 0;
thedo 166:3a9487d57a5c 121 }
thedo 166:3a9487d57a5c 122
thedo 166:3a9487d57a5c 123 off_t Stream::size() {
thedo 166:3a9487d57a5c 124 return 0;
thedo 166:3a9487d57a5c 125 }
thedo 166:3a9487d57a5c 126
thedo 166:3a9487d57a5c 127 int Stream::printf(const char* format, ...) {
thedo 166:3a9487d57a5c 128 lock();
thedo 166:3a9487d57a5c 129 std::va_list arg;
thedo 166:3a9487d57a5c 130 va_start(arg, format);
thedo 166:3a9487d57a5c 131 fflush(_file);
thedo 166:3a9487d57a5c 132 int r = vfprintf(_file, format, arg);
thedo 166:3a9487d57a5c 133 va_end(arg);
thedo 166:3a9487d57a5c 134 unlock();
thedo 166:3a9487d57a5c 135 return r;
thedo 166:3a9487d57a5c 136 }
thedo 166:3a9487d57a5c 137
thedo 166:3a9487d57a5c 138 int Stream::scanf(const char* format, ...) {
thedo 166:3a9487d57a5c 139 lock();
thedo 166:3a9487d57a5c 140 std::va_list arg;
thedo 166:3a9487d57a5c 141 va_start(arg, format);
thedo 166:3a9487d57a5c 142 fflush(_file);
thedo 166:3a9487d57a5c 143 int r = vfscanf(_file, format, arg);
thedo 166:3a9487d57a5c 144 va_end(arg);
thedo 166:3a9487d57a5c 145 unlock();
thedo 166:3a9487d57a5c 146 return r;
thedo 166:3a9487d57a5c 147 }
thedo 166:3a9487d57a5c 148
thedo 166:3a9487d57a5c 149 int Stream::vprintf(const char* format, std::va_list args) {
thedo 166:3a9487d57a5c 150 lock();
thedo 166:3a9487d57a5c 151 fflush(_file);
thedo 166:3a9487d57a5c 152 int r = vfprintf(_file, format, args);
thedo 166:3a9487d57a5c 153 unlock();
thedo 166:3a9487d57a5c 154 return r;
thedo 166:3a9487d57a5c 155 }
thedo 166:3a9487d57a5c 156
thedo 166:3a9487d57a5c 157 int Stream::vscanf(const char* format, std::va_list args) {
thedo 166:3a9487d57a5c 158 lock();
thedo 166:3a9487d57a5c 159 fflush(_file);
thedo 166:3a9487d57a5c 160 int r = vfscanf(_file, format, args);
thedo 166:3a9487d57a5c 161 unlock();
thedo 166:3a9487d57a5c 162 return r;
thedo 166:3a9487d57a5c 163 }
thedo 166:3a9487d57a5c 164
thedo 166:3a9487d57a5c 165 } // namespace mbed
thedo 166:3a9487d57a5c 166