mirror of https://github.com/BOINC/boinc.git
114 lines
3.3 KiB
C++
114 lines
3.3 KiB
C++
// This file is part of BOINC.
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// http://boinc.berkeley.edu
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// Copyright (C) 2008 University of California
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//
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// BOINC is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// BOINC 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.
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// See the GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
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// keep track of the network performance of this host,
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// namely exponentially weighted averages of upload and download speeds
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//
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#ifndef _NET_STATS_
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#define _NET_STATS_
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#ifndef _WIN32
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#include <cstdio>
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#endif
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#include "miofile.h"
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class FILE_XFER_SET;
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class HTTP_OP_SET;
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// there's one of these each for upload and download
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struct NET_INFO {
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double max_rate;
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// estimate of max transfer rate; computed as an average of
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// the rates of recent file transfers, weighted by file size.
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// This ignores concurrency of transfers.
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double avg_rate;
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// recent average transfer rate
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double avg_time;
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// when avg_rate was last updated
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void update(double nbytes, double dt);
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// updates the above vars
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};
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class NET_STATS {
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public:
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NET_INFO up;
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NET_INFO down;
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NET_STATS();
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int write(MIOFILE&);
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int parse(MIOFILE&);
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};
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class NET_STATUS {
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public:
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bool need_to_contact_reference_site;
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// contact the reference site as soon as GUI_HTTP is idle
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// polled from NET_STATS::poll(), for want of a better place
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void contact_reference_site();
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bool show_ref_message;
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bool need_physical_connection;
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// client wants to do network comm and no physical connection exists.
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// Initially false; set whenever a Curl operation
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// returns CURLE_COULDNT_RESOLVE_HOST,
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// and a subsequent request to a highly-available site
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// also returns CURLE_COULDNT_RESOLVE_HOST.
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// cleared whenever we transfer data,
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// or an operation returns some other value
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bool have_sporadic_connection;
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// we have a network connection, but it's likely to go away soon,
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// so do as much network comm as possible
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// (e.g. report completed results)
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double last_comm_time;
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int network_status();
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void network_available();
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void got_http_error();
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NET_STATUS() {
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need_physical_connection = false;
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have_sporadic_connection = false;
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need_to_contact_reference_site = false;
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show_ref_message = false;
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last_comm_time = 0;
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}
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void poll();
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};
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// This is used to access a reference website (like yahoo or google)
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// that is assumed to be 100% available.
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// It is used ONLY from the HTTP code, when a transaction fails
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struct LOOKUP_WEBSITE_OP: public GUI_HTTP_OP {
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int error_num;
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virtual ~LOOKUP_WEBSITE_OP(){}
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int do_rpc(std::string&);
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virtual void handle_reply(int http_op_retval);
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LOOKUP_WEBSITE_OP(GUI_HTTP* p){
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error_num = BOINC_SUCCESS;
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gui_http = p;
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}
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};
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extern NET_STATUS net_status;
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#endif
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