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threadedserver.h
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threadedserver.h
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// Percy++ Copyright 2007,2012,2013 Ian Goldberg <[email protected]>,
// Casey Devet <[email protected]>,
// Paul Hendry <[email protected]>,
// Ryan Henry <[email protected]>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of version 2 of the GNU General Public License as
// published by the Free Software Foundation.
//
// 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.
//
// There is a copy of the GNU General Public License in the COPYING file
// packaged with this plugin; if you cannot find it, write to the Free
// Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301 USA
#ifndef __THREADEDSERVER_H__
#define __THREADEDSERVER_H__
#include <vector>
#include <streambuf>
#include <iostream>
#include <stdio.h>
#include <NTL/vec_ZZ_p.h>
#include "datastore.h"
#include "percyparams.h"
#include "percyserver.h"
#include "percytypes.h"
#include "datastore.h"
class ThreadedDataStore : public FileDataStore {
public:
ThreadedDataStore (const char * filename, const PercyServerParams ¶ms,
bool tau_independent = false);
virtual ~ThreadedDataStore ();
MemoryDataStore * get_subds (dbsize_t index);
dbsize_t get_num_threads ();
protected:
dbsize_t num_threads;
PercyThreadingType ttype;
std::vector<MemoryDataStore*> subdatastores;
};
struct BufferInfo {
char * addr;
dbsize_t size;
};
class ThreadStreamBuf : public std::streambuf {
public:
ThreadStreamBuf ();
virtual ~ThreadStreamBuf ();
void add_inbuffer (char * addr, dbsize_t size);
void add_outbuffer (char * addr, dbsize_t size);
virtual std::streamsize showmanyc ();
virtual int underflow ();
virtual int uflow ();
virtual int overflow (int c = EOF);
bool in_eof ();
bool out_eof ();
private:
std::vector<BufferInfo> inbuffers;
std::vector<BufferInfo> outbuffers;
std::streamsize inbufferindex;
std::streamsize outbufferindex;
dbsize_t incharindex;
dbsize_t outcharindex;
};
class PercyThreadedServer : public PercyServer {
public:
// Initialize a server with the given datastore
PercyThreadedServer(ThreadedDataStore * ds);
~PercyThreadedServer();
virtual bool handle_request(PercyServerParams ¶ms, std::istream &is, std::ostream &os);
private:
friend void * PThreadWork (void * arg);
bool thread_work (dbsize_t thread_index, PercyServerParams ¶ms,
nqueries_t num_queries, unsigned char * const queries, unsigned char * const responses);
dbsize_t num_threads;
std::vector<PercyServer*> subservers;
};
#endif