170 lines
3.7 KiB
C++
170 lines
3.7 KiB
C++
/**
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* @file llpipeutil.h
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* @date 2006-05-18
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* @brief Utility pipe fittings for injecting and extracting strings
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*
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* $LicenseInfo:firstyear=2006&license=viewergpl$
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*
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* Copyright (c) 2006-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#ifndef LL_LLPIPEUTIL_H
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#define LL_LLPIPEUTIL_H
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#include "lliopipe.h"
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/**
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* @brief Simple function which pumps for the specified time.
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*/
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F32 pump_loop(LLPumpIO* pump, F32 seconds);
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/**
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* @brief Simple class which writes a string and then marks the stream
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* as done.
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*/
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class LLPipeStringInjector : public LLIOPipe
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{
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public:
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LLPipeStringInjector(const std::string& string)
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: mString(string)
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{ }
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protected:
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virtual EStatus process_impl(
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const LLChannelDescriptors& channels,
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buffer_ptr_t& buffer,
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bool& eos,
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LLSD& context,
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LLPumpIO* pump);
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private:
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std::string mString;
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};
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class LLPipeStringExtractor : public LLIOPipe
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{
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public:
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LLPipeStringExtractor() : mDone(false) { }
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bool done() { return mDone; }
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std::string string() { return mString; }
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protected:
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// LLIOPipe API implementation.
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virtual EStatus process_impl(
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const LLChannelDescriptors& channels,
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LLIOPipe::buffer_ptr_t& buffer,
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bool& eos,
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LLSD& context,
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LLPumpIO* pump);
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private:
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bool mDone;
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std::string mString;
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};
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/**
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* @brief Generate a specified number of bytes of random data
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*/
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class LLIOFuzz : public LLIOPipe
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{
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public:
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LLIOFuzz(int byte_count) : mByteCount(byte_count) {}
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protected:
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virtual EStatus process_impl(
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const LLChannelDescriptors& channels,
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buffer_ptr_t& buffer,
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bool& eos,
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LLSD& context,
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LLPumpIO* pump);
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private:
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int mByteCount;
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};
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/**
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* @brief Generate some ascii fuz
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*/
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class LLIOASCIIFuzz : public LLIOPipe
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{
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public:
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LLIOASCIIFuzz(int byte_count) : mByteCount(byte_count) {}
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protected:
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virtual EStatus process_impl(
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const LLChannelDescriptors& channels,
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buffer_ptr_t& buffer,
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bool& eos,
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LLSD& context,
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LLPumpIO* pump);
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private:
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int mByteCount;
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};
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/**
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* @brief Pipe that does nothing except return STATUS_OK
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*/
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class LLIONull : public LLIOPipe
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{
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public:
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LLIONull() {}
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protected:
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virtual EStatus process_impl(
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const LLChannelDescriptors& channels,
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buffer_ptr_t& buffer,
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bool& eos,
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LLSD& context,
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LLPumpIO* pump);
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};
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/**
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* @brief Pipe that sleeps, and then responds later.
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*/
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class LLIOSleeper : public LLIOPipe
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{
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public:
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LLIOSleeper() : mRespond(false) {}
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protected:
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virtual EStatus process_impl(
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const LLChannelDescriptors& channels,
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buffer_ptr_t& buffer,
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bool& eos,
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LLSD& context,
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LLPumpIO* pump);
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private:
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bool mRespond;
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};
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#endif // LL_LLPIPEUTIL_H
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