beetle-pce-fast-libretro/mednafen/Stream.cpp
2012-10-13 16:56:30 +02:00

127 lines
2.0 KiB
C++

// TODO/WIP
/* Mednafen - Multi-system Emulator
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "mednafen.h"
#include "Stream.h"
#include <trio/trio.h>
Stream::Stream()
{
}
Stream::~Stream()
{
}
void Stream::printf(const char *format, ...)
{
char *str = NULL;
int rc;
va_list ap;
va_start(ap, format);
rc = trio_vasprintf(&str, format, ap);
va_end(ap);
if(rc < 0)
throw MDFN_Error(0, "Error in trio_vasprintf()");
else
{
try // Bleck
{
write(str, rc);
}
catch(...)
{
free(str);
throw;
}
free(str);
}
}
#if 0
int Stream::scanf(const char *format, ...)
{
}
void Stream::printf(const char *format, ...)
{
}
void Stream::put_string(const char *str)
{
write(str, strlen(str));
}
void Stream::put_string(const std::string &str)
{
write(str.data(), str.size());
}
#endif
int Stream::get_line(std::string &str)
{
uint8 c;
str.clear(); // or str.resize(0)??
while(read(&c, sizeof(c), false) > 0)
{
if(c == '\r' || c == '\n' || c == 0)
return(c);
str.push_back(c);
}
return(-1);
}
StreamFilter::StreamFilter()
{
target_stream = NULL;
}
StreamFilter::StreamFilter(Stream *target_arg)
{
target_stream = target_arg;
}
StreamFilter::~StreamFilter()
{
if(target_stream)
delete target_stream;
}
Stream* StreamFilter::steal(void)
{
Stream *ret = target_stream;
target_stream = NULL;
return ret;
}