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/**
* @file llpipeutil.h
* @date 2006-05-18
* @brief Utility pipe fittings for injecting and extracting strings
*
* $LicenseInfo:firstyear=2006&license=viewergpl$
*
* Copyright (c) 2006-2008, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#ifndef LL_LLPIPEUTIL_H
#define LL_LLPIPEUTIL_H
#include "lliopipe.h"
/**
* @brief Simple function which pumps for the specified time.
*/
F32 pump_loop(LLPumpIO* pump, F32 seconds);
/**
* @brief Simple class which writes a string and then marks the stream
* as done.
*/
class LLPipeStringInjector : public LLIOPipe
{
public:
LLPipeStringInjector(const std::string& string)
: mString(string)
{ }
protected:
virtual EStatus process_impl(
const LLChannelDescriptors& channels,
buffer_ptr_t& buffer,
bool& eos,
LLSD& context,
LLPumpIO* pump);
private:
std::string mString;
};
class LLPipeStringExtractor : public LLIOPipe
{
public:
LLPipeStringExtractor() : mDone(false) { }
bool done() { return mDone; }
std::string string() { return mString; }
protected:
// LLIOPipe API implementation.
virtual EStatus process_impl(
const LLChannelDescriptors& channels,
LLIOPipe::buffer_ptr_t& buffer,
bool& eos,
LLSD& context,
LLPumpIO* pump);
private:
bool mDone;
std::string mString;
};
/**
* @brief Generate a specified number of bytes of random data
*/
class LLIOFuzz : public LLIOPipe
{
public:
LLIOFuzz(int byte_count) : mByteCount(byte_count) {}
protected:
virtual EStatus process_impl(
const LLChannelDescriptors& channels,
buffer_ptr_t& buffer,
bool& eos,
LLSD& context,
LLPumpIO* pump);
private:
int mByteCount;
};
/**
* @brief Generate some ascii fuz
*/
class LLIOASCIIFuzz : public LLIOPipe
{
public:
LLIOASCIIFuzz(int byte_count) : mByteCount(byte_count) {}
protected:
virtual EStatus process_impl(
const LLChannelDescriptors& channels,
buffer_ptr_t& buffer,
bool& eos,
LLSD& context,
LLPumpIO* pump);
private:
int mByteCount;
};
/**
* @brief Pipe that does nothing except return STATUS_OK
*/
class LLIONull : public LLIOPipe
{
public:
LLIONull() {}
protected:
virtual EStatus process_impl(
const LLChannelDescriptors& channels,
buffer_ptr_t& buffer,
bool& eos,
LLSD& context,
LLPumpIO* pump);
};
/**
* @brief Pipe that sleeps, and then responds later.
*/
class LLIOSleeper : public LLIOPipe
{
public:
LLIOSleeper() : mRespond(false) {}
protected:
virtual EStatus process_impl(
const LLChannelDescriptors& channels,
buffer_ptr_t& buffer,
bool& eos,
LLSD& context,
LLPumpIO* pump);
private:
bool mRespond;
};
#endif // LL_LLPIPEUTIL_H
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