You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

90 lines
2.3 KiB

/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
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 3 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, see <http://www.gnu.org/licenses/>.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
#include "hsMMIOStream.h"
//////////////////////////////////////////////////////////////////////////////////////
#if HS_BUILD_FOR_WIN32
#include "hsExceptions.h"
UInt32 hsMMIOStream::Read(UInt32 bytes, void* buffer)
{
fBytesRead += bytes;
fPosition += bytes;
int numItems = ::mmioRead(fHmfr, (char*)buffer, bytes);
if ((unsigned)numItems < bytes)
{
if (numItems>=0 && ::mmioSeek(fHmfr,0,SEEK_CUR)==::mmioSeek(fHmfr,0,SEEK_END)) {
// EOF ocurred
char str[128];
sprintf(str, "Hit EOF on MMIO Read, only read %d out of requested %d bytes\n", numItems, bytes);
hsDebugMessage(str, 0);
}
else
{
hsDebugMessage("Error on MMIO Read",0);
}
}
return numItems;
}
hsBool hsMMIOStream::AtEnd()
{
return (::mmioSeek(fHmfr,0,SEEK_CUR)==::mmioSeek(fHmfr,0,SEEK_END));
}
UInt32 hsMMIOStream::Write(UInt32 bytes, const void* buffer)
{
fPosition += bytes;
return ::mmioWrite(fHmfr,(const char*)buffer,bytes);
}
void hsMMIOStream::Skip(UInt32 delta)
{
fBytesRead += delta;
fPosition += delta;
(void)::mmioSeek(fHmfr, delta, SEEK_CUR);
}
void hsMMIOStream::Rewind()
{
fBytesRead = 0;
fPosition = 0;
(void)::mmioSeek(fHmfr, 0, SEEK_SET);
}
void hsMMIOStream::FastFwd()
{
fBytesRead = fPosition = ::mmioSeek(fHmfr, 0, SEEK_END);
}
void hsMMIOStream::Truncate()
{
hsThrow("Truncate unimplemented by subclass of stream");
}
#endif