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89 lines
2.3 KiB
89 lines
2.3 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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#include "hsMMIOStream.h" |
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////////////////////////////////////////////////////////////////////////////////////// |
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#if HS_BUILD_FOR_WIN32 |
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#include "hsExceptions.h" |
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UInt32 hsMMIOStream::Read(UInt32 bytes, void* buffer) |
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{ |
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fBytesRead += bytes; |
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fPosition += bytes; |
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int numItems = ::mmioRead(fHmfr, (char*)buffer, bytes); |
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if ((unsigned)numItems < bytes) |
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{ |
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if (numItems>=0 && ::mmioSeek(fHmfr,0,SEEK_CUR)==::mmioSeek(fHmfr,0,SEEK_END)) { |
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// EOF ocurred |
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char str[128]; |
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sprintf(str, "Hit EOF on MMIO Read, only read %d out of requested %d bytes\n", numItems, bytes); |
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hsDebugMessage(str, 0); |
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} |
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else |
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{ |
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hsDebugMessage("Error on MMIO Read",0); |
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} |
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} |
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return numItems; |
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} |
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hsBool hsMMIOStream::AtEnd() |
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{ |
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return (::mmioSeek(fHmfr,0,SEEK_CUR)==::mmioSeek(fHmfr,0,SEEK_END)); |
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} |
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UInt32 hsMMIOStream::Write(UInt32 bytes, const void* buffer) |
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{ |
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fPosition += bytes; |
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return ::mmioWrite(fHmfr,(const char*)buffer,bytes); |
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} |
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void hsMMIOStream::Skip(UInt32 delta) |
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{ |
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fBytesRead += delta; |
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fPosition += delta; |
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(void)::mmioSeek(fHmfr, delta, SEEK_CUR); |
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} |
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void hsMMIOStream::Rewind() |
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{ |
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fBytesRead = 0; |
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fPosition = 0; |
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(void)::mmioSeek(fHmfr, 0, SEEK_SET); |
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} |
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void hsMMIOStream::FastFwd() |
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{ |
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fBytesRead = fPosition = ::mmioSeek(fHmfr, 0, SEEK_END); |
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} |
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void hsMMIOStream::Truncate() |
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{ |
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hsThrow("Truncate unimplemented by subclass of stream"); |
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} |
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#endif
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