1 /*- 2 * Copyright (c) 1997 Brian Somers <brian@Awfulhak.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/types.h> 30 31 #include <stdarg.h> 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <string.h> 35 #include <termios.h> 36 #include <time.h> 37 38 #include "log.h" 39 #include "timer.h" 40 #include "throughput.h" 41 #include "descriptor.h" 42 #include "prompt.h" 43 44 45 void 46 throughput_init(struct pppThroughput *t, int period) 47 { 48 t->OctetsIn = t->OctetsOut = t->PacketsIn = t->PacketsOut = 0; 49 t->SamplePeriod = period; 50 t->in.SampleOctets = (long long *) 51 calloc(period, sizeof *t->in.SampleOctets); 52 t->in.OctetsPerSecond = 0; 53 t->out.SampleOctets = (long long *) 54 calloc(period, sizeof *t->out.SampleOctets); 55 t->out.OctetsPerSecond = 0; 56 t->BestOctetsPerSecond = 0; 57 t->nSample = 0; 58 time(&t->BestOctetsPerSecondTime); 59 memset(&t->Timer, '\0', sizeof t->Timer); 60 t->Timer.name = "throughput"; 61 t->uptime = 0; 62 t->downtime = 0; 63 t->rolling = 0; 64 t->callback.data = NULL; 65 t->callback.fn = NULL; 66 throughput_stop(t); 67 } 68 69 void 70 throughput_destroy(struct pppThroughput *t) 71 { 72 if (t && t->in.SampleOctets) { 73 throughput_stop(t); 74 free(t->in.SampleOctets); 75 free(t->out.SampleOctets); 76 t->in.SampleOctets = NULL; 77 t->out.SampleOctets = NULL; 78 } 79 } 80 81 int 82 throughput_uptime(struct pppThroughput *t) 83 { 84 time_t downat; 85 86 downat = t->downtime ? t->downtime : time(NULL); 87 if (t->uptime && downat < t->uptime) { 88 /* Euch ! The clock's gone back ! */ 89 int i; 90 91 for (i = 0; i < t->SamplePeriod; i++) 92 t->in.SampleOctets[i] = t->out.SampleOctets[i] = 0; 93 t->nSample = 0; 94 t->uptime = downat; 95 } 96 return t->uptime ? downat - t->uptime : 0; 97 } 98 99 void 100 throughput_disp(struct pppThroughput *t, struct prompt *prompt) 101 { 102 int secs_up, divisor; 103 104 secs_up = throughput_uptime(t); 105 prompt_Printf(prompt, "Connect time: %d:%02d:%02d", secs_up / 3600, 106 (secs_up / 60) % 60, secs_up % 60); 107 if (t->downtime) 108 prompt_Printf(prompt, " - down at %s", ctime(&t->downtime)); 109 else 110 prompt_Printf(prompt, "\n"); 111 112 divisor = secs_up ? secs_up : 1; 113 prompt_Printf(prompt, "%llu octets in, %llu octets out\n", 114 t->OctetsIn, t->OctetsOut); 115 prompt_Printf(prompt, "%llu packets in, %llu packets out\n", 116 t->PacketsIn, t->PacketsOut); 117 if (t->rolling) { 118 prompt_Printf(prompt, " overall %6llu bytes/sec\n", 119 (t->OctetsIn + t->OctetsOut) / divisor); 120 prompt_Printf(prompt, " %s %6llu bytes/sec in, %6llu bytes/sec out " 121 "(over the last %d secs)\n", 122 t->downtime ? "average " : "currently", 123 t->in.OctetsPerSecond, t->out.OctetsPerSecond, 124 secs_up > t->SamplePeriod ? t->SamplePeriod : secs_up); 125 prompt_Printf(prompt, " peak %6llu bytes/sec on %s", 126 t->BestOctetsPerSecond, ctime(&t->BestOctetsPerSecondTime)); 127 } else 128 prompt_Printf(prompt, "Overall %llu bytes/sec\n", 129 (t->OctetsIn + t->OctetsOut) / divisor); 130 } 131 132 133 void 134 throughput_log(struct pppThroughput *t, int level, const char *title) 135 { 136 if (t->uptime) { 137 int secs_up; 138 139 secs_up = throughput_uptime(t); 140 if (title == NULL) 141 title = ""; 142 log_Printf(level, "%s%sConnect time: %d secs: %llu octets in, %llu octets" 143 " out\n", title, *title ? ": " : "", secs_up, t->OctetsIn, 144 t->OctetsOut); 145 log_Printf(level, "%s%s%llu packets in, %llu packets out\n", 146 title, *title ? ": " : "", t->PacketsIn, t->PacketsOut); 147 if (secs_up == 0) 148 secs_up = 1; 149 if (t->rolling) 150 log_Printf(level, " total %llu bytes/sec, peak %llu bytes/sec on %s", 151 (t->OctetsIn + t->OctetsOut) / secs_up, t->BestOctetsPerSecond, 152 ctime(&t->BestOctetsPerSecondTime)); 153 else 154 log_Printf(level, " total %llu bytes/sec\n", 155 (t->OctetsIn + t->OctetsOut) / secs_up); 156 } 157 } 158 159 static void 160 throughput_sampler(void *v) 161 { 162 struct pppThroughput *t = (struct pppThroughput *)v; 163 unsigned long long old; 164 int uptime, divisor; 165 unsigned long long octets; 166 167 timer_Stop(&t->Timer); 168 169 uptime = throughput_uptime(t); 170 divisor = uptime < t->SamplePeriod ? uptime + 1 : t->SamplePeriod; 171 172 old = t->in.SampleOctets[t->nSample]; 173 t->in.SampleOctets[t->nSample] = t->OctetsIn; 174 t->in.OctetsPerSecond = (t->in.SampleOctets[t->nSample] - old) / divisor; 175 176 old = t->out.SampleOctets[t->nSample]; 177 t->out.SampleOctets[t->nSample] = t->OctetsOut; 178 t->out.OctetsPerSecond = (t->out.SampleOctets[t->nSample] - old) / divisor; 179 180 octets = t->in.OctetsPerSecond + t->out.OctetsPerSecond; 181 if (t->BestOctetsPerSecond < octets) { 182 t->BestOctetsPerSecond = octets; 183 time(&t->BestOctetsPerSecondTime); 184 } 185 186 if (++t->nSample == t->SamplePeriod) 187 t->nSample = 0; 188 189 if (t->callback.fn != NULL && uptime >= t->SamplePeriod) 190 (*t->callback.fn)(t->callback.data); 191 192 timer_Start(&t->Timer); 193 } 194 195 void 196 throughput_start(struct pppThroughput *t, const char *name, int rolling) 197 { 198 int i; 199 timer_Stop(&t->Timer); 200 201 for (i = 0; i < t->SamplePeriod; i++) 202 t->in.SampleOctets[i] = t->out.SampleOctets[i] = 0; 203 t->nSample = 0; 204 t->OctetsIn = t->OctetsOut = t->PacketsIn = t->PacketsOut = 0; 205 t->in.OctetsPerSecond = t->out.OctetsPerSecond = t->BestOctetsPerSecond = 0; 206 time(&t->BestOctetsPerSecondTime); 207 t->downtime = 0; 208 time(&t->uptime); 209 throughput_restart(t, name, rolling); 210 } 211 212 void 213 throughput_restart(struct pppThroughput *t, const char *name, int rolling) 214 { 215 timer_Stop(&t->Timer); 216 t->rolling = rolling ? 1 : 0; 217 if (t->rolling) { 218 t->Timer.load = SECTICKS; 219 t->Timer.func = throughput_sampler; 220 t->Timer.name = name; 221 t->Timer.arg = t; 222 timer_Start(&t->Timer); 223 } else { 224 t->Timer.load = 0; 225 t->Timer.func = NULL; 226 t->Timer.name = NULL; 227 t->Timer.arg = NULL; 228 } 229 } 230 231 void 232 throughput_stop(struct pppThroughput *t) 233 { 234 if (t->Timer.state != TIMER_STOPPED) 235 time(&t->downtime); 236 timer_Stop(&t->Timer); 237 } 238 239 void 240 throughput_addin(struct pppThroughput *t, long long n) 241 { 242 t->OctetsIn += n; 243 t->PacketsIn++; 244 } 245 246 void 247 throughput_addout(struct pppThroughput *t, long long n) 248 { 249 t->OctetsOut += n; 250 t->PacketsOut++; 251 } 252 253 void 254 throughput_clear(struct pppThroughput *t, int clear_type, struct prompt *prompt) 255 { 256 if (clear_type & (THROUGHPUT_OVERALL|THROUGHPUT_CURRENT)) { 257 int i; 258 259 for (i = 0; i < t->SamplePeriod; i++) 260 t->in.SampleOctets[i] = t->out.SampleOctets[i] = 0; 261 t->nSample = 0; 262 } 263 264 if (clear_type & THROUGHPUT_OVERALL) { 265 int divisor; 266 267 if ((divisor = throughput_uptime(t)) == 0) 268 divisor = 1; 269 prompt_Printf(prompt, "overall cleared (was %6llu bytes/sec)\n", 270 (t->OctetsIn + t->OctetsOut) / divisor); 271 t->OctetsIn = t->OctetsOut = t->PacketsIn = t->PacketsOut = 0; 272 t->downtime = 0; 273 time(&t->uptime); 274 } 275 276 if (clear_type & THROUGHPUT_CURRENT) { 277 prompt_Printf(prompt, "current cleared (was %6llu bytes/sec in," 278 " %6llu bytes/sec out)\n", 279 t->in.OctetsPerSecond, t->out.OctetsPerSecond); 280 t->in.OctetsPerSecond = t->out.OctetsPerSecond = 0; 281 } 282 283 if (clear_type & THROUGHPUT_PEAK) { 284 char *time_buf, *last; 285 286 time_buf = ctime(&t->BestOctetsPerSecondTime); 287 last = time_buf + strlen(time_buf); 288 if (last > time_buf && *--last == '\n') 289 *last = '\0'; 290 prompt_Printf(prompt, "peak cleared (was %6llu bytes/sec on %s)\n", 291 t->BestOctetsPerSecond, time_buf); 292 t->BestOctetsPerSecond = 0; 293 time(&t->BestOctetsPerSecondTime); 294 } 295 } 296 297 void 298 throughput_callback(struct pppThroughput *t, void (*fn)(void *), void *data) 299 { 300 t->callback.fn = fn; 301 t->callback.data = data; 302 } 303