You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
168 lines
3.7 KiB
C++
168 lines
3.7 KiB
C++
/* FatLib Library
|
|
* Copyright (C) 2013 by William Greiman
|
|
*
|
|
* This file is part of the FatLib Library
|
|
*
|
|
* This Library is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This Library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with the FatLib Library. If not, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include "fstream.h"
|
|
//==============================================================================
|
|
/// @cond SHOW_PROTECTED
|
|
int16_t FatStreamBase::getch() {
|
|
uint8_t c;
|
|
int8_t s = read(&c, 1);
|
|
if (s != 1) {
|
|
if (s < 0) {
|
|
setstate(badbit);
|
|
} else {
|
|
setstate(eofbit);
|
|
}
|
|
return -1;
|
|
}
|
|
if (c != '\r' || (getmode() & ios::binary)) {
|
|
return c;
|
|
}
|
|
s = read(&c, 1);
|
|
if (s == 1 && c == '\n') {
|
|
return c;
|
|
}
|
|
if (s == 1) {
|
|
seekCur(-1);
|
|
}
|
|
return '\r';
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
void FatStreamBase::open(const char* path, ios::openmode mode) {
|
|
uint8_t flags;
|
|
switch (mode & (app | in | out | trunc)) {
|
|
case app | in:
|
|
case app | in | out:
|
|
flags = O_RDWR | O_APPEND | O_CREAT;
|
|
break;
|
|
|
|
case app:
|
|
case app | out:
|
|
flags = O_WRITE | O_APPEND | O_CREAT;
|
|
break;
|
|
|
|
case in:
|
|
flags = O_READ;
|
|
break;
|
|
|
|
case in | out:
|
|
flags = O_RDWR;
|
|
break;
|
|
|
|
case in | out | trunc:
|
|
flags = O_RDWR | O_TRUNC | O_CREAT;
|
|
break;
|
|
|
|
case out:
|
|
case out | trunc:
|
|
flags = O_WRITE | O_TRUNC | O_CREAT;
|
|
break;
|
|
|
|
default:
|
|
goto fail;
|
|
}
|
|
if (mode & ios::ate) {
|
|
flags |= O_AT_END;
|
|
}
|
|
if (!FatFile::open(path, flags)) {
|
|
goto fail;
|
|
}
|
|
setmode(mode);
|
|
clear();
|
|
return;
|
|
|
|
fail:
|
|
FatFile::close();
|
|
setstate(failbit);
|
|
return;
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
void FatStreamBase::putch(char c) {
|
|
if (c == '\n' && !(getmode() & ios::binary)) {
|
|
write('\r');
|
|
}
|
|
write(c);
|
|
if (getWriteError()) {
|
|
setstate(badbit);
|
|
}
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
void FatStreamBase::putstr(const char* str) {
|
|
size_t n = 0;
|
|
while (1) {
|
|
char c = str[n];
|
|
if (c == '\0' || (c == '\n' && !(getmode() & ios::binary))) {
|
|
if (n > 0) {
|
|
write(str, n);
|
|
}
|
|
if (c == '\0') {
|
|
break;
|
|
}
|
|
write('\r');
|
|
str += n;
|
|
n = 0;
|
|
}
|
|
n++;
|
|
}
|
|
if (getWriteError()) {
|
|
setstate(badbit);
|
|
}
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
/** Internal do not use
|
|
* \param[in] off
|
|
* \param[in] way
|
|
*/
|
|
bool FatStreamBase::seekoff(off_type off, seekdir way) {
|
|
pos_type pos;
|
|
switch (way) {
|
|
case beg:
|
|
pos = off;
|
|
break;
|
|
|
|
case cur:
|
|
pos = curPosition() + off;
|
|
break;
|
|
|
|
case end:
|
|
pos = fileSize() + off;
|
|
break;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
return seekpos(pos);
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
/** Internal do not use
|
|
* \param[in] pos
|
|
*/
|
|
bool FatStreamBase::seekpos(pos_type pos) {
|
|
return seekSet(pos);
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
int FatStreamBase::write(const void* buf, size_t n) {
|
|
return FatFile::write(buf, n);
|
|
}
|
|
//------------------------------------------------------------------------------
|
|
void FatStreamBase::write(char c) {
|
|
write(&c, 1);
|
|
}
|
|
/// @endcond
|