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Should have been part of the previous commit

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27388 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stefano Ceccherini 2008-09-09 09:54:07 +00:00
parent 5f8c1a0244
commit 8b330bfe28
2 changed files with 0 additions and 141 deletions
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78
src/servers/app/RAMLinkMsgReader.cpp
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@ -1,78 +0,0 @@
#include "RAMLinkMsgReader.h"
#include <stdlib.h>
#include <string.h>
RAMLinkMsgReader::RAMLinkMsgReader(int8 *buffer)
: BPrivate::LinkReceiver(-1)
{
SetBuffer(buffer);
}
RAMLinkMsgReader::RAMLinkMsgReader(void)
: BPrivate::LinkReceiver(-1)
{
SetBuffer(NULL);
}
RAMLinkMsgReader::~RAMLinkMsgReader(void)
{
// Note that this class does NOT take responsibility for the buffer it reads from.
}
void
RAMLinkMsgReader::SetBuffer(int8 *buffer)
{
if (!buffer) {
fBuffer = NULL;
fAttachStart = NULL;
fPosition = NULL;
fAttachSize = 0;
fCode = B_ERROR;
return;
}
fBuffer = buffer;
fPosition = fBuffer + 4;
fCode = *((int32*)fBuffer);
fAttachSize = *((size_t *)fPosition);
fPosition += sizeof(size_t);
fAttachStart = fPosition;
}
int8 *
RAMLinkMsgReader::GetBuffer(void)
{
return fBuffer;
}
size_t
RAMLinkMsgReader::GetBufferSize(void)
{
return fAttachSize;
}
status_t
RAMLinkMsgReader::Read(void *data, ssize_t size)
{
if (!fBuffer || fAttachSize == 0)
return B_NO_INIT;
if (size < 1)
return B_BAD_VALUE;
if (fPosition + size > fAttachStart + fAttachSize) {
// read past end of buffer
return B_BAD_VALUE;
}
memcpy(data, fPosition, size);
fPosition += size;
return B_OK;
}

63
src/servers/app/RAMLinkMsgReader.h
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@ -1,63 +0,0 @@
// Copyright (c) 2001-2002, Haiku
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: RAMLinkMsgReader.h
// Author: DarkWyrm <bpmagic@columbus.rr.com>
// Description: Class for reading Link messages from a memory buffer
//
//------------------------------------------------------------------------------
#ifndef RAM_LINK_MSG_READER_H
#define RAM_LINK_MSG_READER_H
#include <LinkReceiver.h>
/*
This class is somewhat an inheritance hack to avoid some *serious* code
duplication in the app_server. Its only intended use is for reading back
PortLink message sent over an area in cases where it is too large to fit
through a port.
Expected format:
int32 message code
size_t buffer size
[data buffer]
*/
class RAMLinkMsgReader : public BPrivate::LinkReceiver {
public:
RAMLinkMsgReader(int8 *buffer);
RAMLinkMsgReader(void);
virtual ~RAMLinkMsgReader(void);
void SetBuffer(int8 *buffer);
int8 *GetBuffer(void);
size_t GetBufferSize(void);
int32 Code(void) { return fCode; }
virtual status_t Read(void *data, ssize_t size);
protected:
int8 *fBuffer, *fAttachStart;
int8 *fPosition;
size_t fAttachSize;
int32 fCode;
};
#endif