mirror of https://github.com/BOINC/boinc.git
101 lines
2.7 KiB
C
101 lines
2.7 KiB
C
// The contents of this file are subject to the Mozilla Public License
|
|
// Version 1.0 (the "License"); you may not use this file except in
|
|
// compliance with the License. You may obtain a copy of the License at
|
|
// http://www.mozilla.org/MPL/
|
|
//
|
|
// Software distributed under the License is distributed on an "AS IS"
|
|
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
|
|
// License for the specific language governing rights and limitations
|
|
// under the License.
|
|
//
|
|
// The Original Code is the Berkeley Open Infrastructure for Network Computing.
|
|
//
|
|
// The Initial Developer of the Original Code is the SETI@home project.
|
|
// Portions created by the SETI@home project are Copyright (C) 2002
|
|
// University of California at Berkeley. All Rights Reserved.
|
|
//
|
|
// Contributor(s):
|
|
//
|
|
|
|
#include <string.h>
|
|
|
|
#include "math.h"
|
|
#include "parse.h"
|
|
#include "time.h"
|
|
|
|
#include "net_stats.h"
|
|
|
|
#define SMALL_FILE_CUTOFF 32000
|
|
|
|
NET_STATS::NET_STATS() {
|
|
last_update_up = 0;
|
|
last_update_down = 0;
|
|
bwup = 0;
|
|
bwdown = 0;
|
|
}
|
|
|
|
void NET_STATS::update(bool is_upload, double nbytes, double nsecs) {
|
|
double w1, w2, bw;
|
|
|
|
// ignore small files since their transfer times don't
|
|
// reflect steady-state behavior
|
|
|
|
if (nbytes < SMALL_FILE_CUTOFF) return;
|
|
|
|
// The weight of the new item is a function of its size
|
|
|
|
w1 = 1 - exp(-nbytes/1.e7);
|
|
w2 = 1 - w1;
|
|
bw = nbytes/nsecs;
|
|
|
|
if (is_upload) {
|
|
if (!last_update_up) {
|
|
bwup = bw;
|
|
} else {
|
|
bwup = w1*bw + w2*bwup;
|
|
}
|
|
last_update_up = time(0);
|
|
} else {
|
|
if (!last_update_down) {
|
|
bwdown = bw;
|
|
} else {
|
|
bwdown = w1*bw + w2*bwdown;
|
|
}
|
|
last_update_down = time(0);
|
|
}
|
|
}
|
|
|
|
int NET_STATS::write(FILE* out, bool to_server) {
|
|
fprintf(out,
|
|
"<net_stats>\n"
|
|
" <bwup>%f</bwup>\n"
|
|
" <bwdown>%f</bwdown>\n",
|
|
bwup,
|
|
bwdown
|
|
);
|
|
if (!to_server) {
|
|
fprintf(out,
|
|
" <last_update_up>%d</last_update_up>\n"
|
|
" <last_update_down>%d</last_update_down>\n",
|
|
last_update_up, last_update_down
|
|
);
|
|
}
|
|
fprintf(out, "</net_stats>\n");
|
|
return 0;
|
|
}
|
|
|
|
int NET_STATS::parse(FILE* in) {
|
|
char buf[256];
|
|
|
|
memset(this, 0, sizeof(NET_STATS));
|
|
while (fgets(buf, 256, in)) {
|
|
if (match_tag(buf, "</net_stats>")) return 0;
|
|
else if (parse_double(buf, "<bwup>", bwup)) continue;
|
|
else if (parse_double(buf, "<bwdown>", bwdown)) continue;
|
|
else if (parse_int(buf, "<last_update_up>", last_update_up)) continue;
|
|
else if (parse_int(buf, "<last_update_down>", last_update_down)) continue;
|
|
else fprintf(stderr, "NET_STATS::parse(): unrecognized: %s\n", buf);
|
|
}
|
|
return 1;
|
|
}
|