X-Git-Url: https://git.tokkee.org/?p=liboping.git;a=blobdiff_plain;f=src%2Foping.c;h=6263a4def36459c7d94c8dbbb362cc89b56a9f6e;hp=0cb084f18ec3634ddc97e9a23798d933c03f9c10;hb=0a2a9fe209b27e37d15096fa730bac9520dfeced;hpb=c286d66c1ac5fb899040437057b614856c99822d diff --git a/src/oping.c b/src/oping.c index 0cb084f..6263a4d 100644 --- a/src/oping.c +++ b/src/oping.c @@ -1,6 +1,6 @@ /** * Object oriented C module to send ICMP and ICMPv6 `echo's. - * Copyright (C) 2006-2011 Florian octo Forster + * Copyright (C) 2006-2014 Florian octo Forster * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -75,17 +75,18 @@ #endif #include +#include #if USE_NCURSES # define NCURSES_OPAQUE 1 /* http://newsgroups.derkeiler.com/Archive/Rec/rec.games.roguelike.development/2010-09/msg00050.html */ # define _X_OPEN_SOURCE_EXTENDED -# include -/* some evilness: ncurses knows how to detect unicode, but won't - expose it, yet there's this function that does what we want, so we - steal it away from it */ -extern int _nc_unicode_locale(void); +# if HAVE_NCURSESW_NCURSES_H +# include +# elif HAVE_NCURSES_H +# include +# endif # define OPING_GREEN 1 # define OPING_YELLOW 2 @@ -94,6 +95,9 @@ extern int _nc_unicode_locale(void); # define OPING_YELLOW_HIST 5 # define OPING_RED_HIST 6 +double const threshold_green = 0.8; +double const threshold_yellow = 0.95; + static char const * const hist_symbols_utf8[] = { "▁", "▂", "▃", "▄", "▅", "▆", "▇", "█" }; static size_t const hist_symbols_utf8_num = sizeof (hist_symbols_utf8) @@ -121,12 +125,27 @@ static size_t const hist_colors_num = sizeof (hist_colors_utf8) / sizeof (hist_colors_utf8[0]); #endif +/* "─" */ +#define BOXPLOT_WHISKER_BAR (113 | A_ALTCHARSET) +/* "├" */ +#define BOXPLOT_WHISKER_LEFT_END (116 | A_ALTCHARSET) +/* "┤" */ +#define BOXPLOT_WHISKER_RIGHT_END (117 | A_ALTCHARSET) +/* Inverted */ +#define BOXPLOT_BOX ' ' +/* "│", inverted */ +#define BOXPLOT_MEDIAN (120 | A_ALTCHARSET) + #include "oping.h" #ifndef _POSIX_SAVED_IDS # define _POSIX_SAVED_IDS 0 #endif +#ifndef IPTOS_MINCOST +# define IPTOS_MINCOST 0x02 +#endif + /* Remove GNU specific __attribute__ settings when using another compiler */ #if !__GNUC__ # define __attribute__(x) /**/ @@ -141,10 +160,31 @@ typedef struct ping_context int req_sent; int req_rcvd; - double latency_min; - double latency_max; double latency_total; - double latency_total_square; + +#ifndef HISTORY_SIZE_MAX +# define HISTORY_SIZE_MAX 900 +#endif + /* The last n RTTs in the order they were sent. */ + double history_by_time[HISTORY_SIZE_MAX]; + + /* Current number of entries in the history. This is a value between 0 + * and HISTORY_SIZE_MAX. */ + size_t history_size; + + /* Number "received" entries in the history, i.e. non-NAN entries. */ + size_t history_received; + + /* Index of the next RTT to be written to history_by_time. This wraps + * around to 0 once the histroty has grown to HISTORY_SIZE_MAX. */ + size_t history_index; + + /* The last history_size RTTs sorted by value. timed out packets (NAN + * entries) are sorted to the back. */ + double history_by_value[HISTORY_SIZE_MAX]; + + /* If set to true, history_by_value has to be re-calculated. */ + _Bool history_dirty; #if USE_NCURSES WINDOW *window; @@ -152,13 +192,22 @@ typedef struct ping_context } ping_context_t; static double opt_interval = 1.0; +static double opt_timeout = PING_DEF_TIMEOUT; static int opt_addrfamily = PING_DEF_AF; static char *opt_srcaddr = NULL; static char *opt_device = NULL; +static char *opt_mark = NULL; static char *opt_filename = NULL; static int opt_count = -1; static int opt_send_ttl = 64; static uint8_t opt_send_qos = 0; +#define OPING_DEFAULT_PERCENTILE 95.0 +static double opt_percentile = -1.0; +static double opt_exit_status_threshold = 1.0; +#if USE_NCURSES +static int opt_show_graph = 1; +static int opt_utf8 = 0; +#endif static int host_num = 0; @@ -183,10 +232,7 @@ static ping_context_t *context_create (void) /* {{{ */ memset (ret, '\0', sizeof (ping_context_t)); - ret->latency_min = -1.0; - ret->latency_max = -1.0; ret->latency_total = 0.0; - ret->latency_total_square = 0.0; #if USE_NCURSES ret->window = NULL; @@ -211,37 +257,126 @@ static void context_destroy (ping_context_t *context) /* {{{ */ free (context); } /* }}} void context_destroy */ -static double context_get_average (ping_context_t *ctx) /* {{{ */ +static int compare_double (void const *arg0, void const *arg1) /* {{{ */ { - double num_total; + double dbl0 = *((double *) arg0); + double dbl1 = *((double *) arg1); - if (ctx == NULL) - return (-1.0); + if (isnan (dbl0)) + { + if (isnan (dbl1)) + return 0; + else + return 1; + } + else if (isnan (dbl1)) + return -1; + else if (dbl0 < dbl1) + return -1; + else if (dbl0 > dbl1) + return 1; + else + return 0; +} /* }}} int compare_double */ + +static void clean_history (ping_context_t *ctx) /* {{{ */ +{ + size_t i; + + if (!ctx->history_dirty) + return; - if (ctx->req_rcvd < 1) - return (-0.0); + /* Copy all values from by_time to by_value. */ + memcpy (ctx->history_by_value, ctx->history_by_time, + sizeof (ctx->history_by_time)); - num_total = (double) ctx->req_rcvd; - return (ctx->latency_total / num_total); -} /* }}} double context_get_average */ + /* Sort all RTTs. */ + qsort (ctx->history_by_value, ctx->history_size, sizeof + (ctx->history_by_value[0]), compare_double); -static double context_get_stddev (ping_context_t *ctx) /* {{{ */ + /* Update the number of received RTTs. */ + ctx->history_received = 0; + for (i = 0; i < ctx->history_size; i++) + if (!isnan (ctx->history_by_value[i])) + ctx->history_received++; + + /* Mark as clean. */ + ctx->history_dirty = 0; +} /* }}} void clean_history */ + +static double percentile_to_latency (ping_context_t *ctx, /* {{{ */ + double percentile) { - double num_total; + size_t index; - if (ctx == NULL) - return (-1.0); + clean_history (ctx); - if (ctx->req_rcvd < 1) - return (-0.0); - else if (ctx->req_rcvd < 2) - return (0.0); + /* Not a single packet was received successfully. */ + if (ctx->history_received == 0) + return NAN; + + if (percentile <= 0.0) + index = 0; + else if (percentile >= 100.0) + index = ctx->history_received - 1; + else + { + index = (size_t) ceil ((percentile / 100.0) * ((double) ctx->history_received)); + assert (index > 0); + index--; + } + + return (ctx->history_by_value[index]); +} /* }}} double percentile_to_latency */ + +#if USE_NCURSES +static double latency_to_ratio (ping_context_t *ctx, /* {{{ */ + double latency) +{ + size_t low; + size_t high; + size_t index; + + clean_history (ctx); + + /* Not a single packet was received successfully. */ + if (ctx->history_received == 0) + return NAN; + + low = 0; + high = ctx->history_received - 1; + + if (latency < ctx->history_by_value[low]) + return 0.0; + else if (latency >= ctx->history_by_value[high]) + return 100.0; + + /* Do a binary search for the latency. This will work even when the + * exact latency is not in the array. If the latency is in the array + * multiple times, "low" will be set to the index of the last + * occurrence. The value at index "high" will be larger than the + * searched for latency (assured by the above "if" block. */ + while ((high - low) > 1) + { + index = (high + low) / 2; - num_total = (double) ctx->req_rcvd; - return (sqrt (((num_total * ctx->latency_total_square) - - (ctx->latency_total * ctx->latency_total)) - / (num_total * (num_total - 1.0)))); -} /* }}} double context_get_stddev */ + if (ctx->history_by_value[index] > latency) + high = index; + else + low = index; + } + + assert (ctx->history_by_value[high] > latency); + assert (ctx->history_by_value[low] <= latency); + + if (ctx->history_by_value[low] == latency) + index = low; + else + index = high; + + return (((double) (index + 1)) / ((double) ctx->history_received)); +} /* }}} double latency_to_ratio */ +#endif static double context_get_packet_loss (const ping_context_t *ctx) /* {{{ */ { @@ -297,15 +432,24 @@ static void usage_exit (const char *name, int status) /* {{{ */ " -4|-6 force the use of IPv4 or IPv6\n" " -c count number of ICMP packets to send\n" " -i interval interval with which to send ICMP packets\n" + " -w timeout time to wait for replies, in seconds\n" " -t ttl time to live for each ICMP packet\n" " -Q qos Quality of Service (QoS) of outgoing packets\n" " Use \"-Q help\" for a list of valid options.\n" " -I srcaddr source address\n" " -D device outgoing interface name\n" + " -m mark mark to set on outgoing packets\n" " -f filename filename to read hosts from\n" +#if USE_NCURSES + " -u / -U force / disable UTF-8 output\n" + " -g graph graph type to draw\n" +#endif + " -P percent Report the n'th percentile of latency\n" + " -Z percent Exit with non-zero exit status if more than this percentage of\n" + " probes timed out. (default: never)\n" - "\noping "PACKAGE_VERSION", http://verplant.org/liboping/\n" - "by Florian octo Forster \n" + "\noping "PACKAGE_VERSION", http://noping.cc/\n" + "by Florian octo Forster \n" "for contributions see `AUTHORS'\n", name); exit (status); @@ -505,7 +649,11 @@ static int read_options (int argc, char **argv) /* {{{ */ while (1) { - optchar = getopt (argc, argv, "46c:hi:I:t:Q:f:D:"); + optchar = getopt (argc, argv, "46c:hi:I:t:Q:f:D:Z:P:m:w:" +#if USE_NCURSES + "uUg:" +#endif + ); if (optchar == -1) break; @@ -522,7 +670,12 @@ static int read_options (int argc, char **argv) /* {{{ */ int new_count; new_count = atoi (optarg); if (new_count > 0) + { opt_count = new_count; + + if ((opt_percentile < 0.0) && (opt_count < 20)) + opt_percentile = 100.0 * (opt_count - 1) / opt_count; + } else fprintf(stderr, "Ignoring invalid count: %s\n", optarg); @@ -548,6 +701,19 @@ static int read_options (int argc, char **argv) /* {{{ */ opt_interval = new_interval; } break; + + case 'w': + { + char *endp = NULL; + double t = strtod (optarg, &endp); + if ((optarg[0] != 0) && (endp != NULL) && (*endp == 0)) + opt_timeout = t; + else + fprintf (stderr, "Ignoring invalid timeout: %s\n", + optarg); + } + break; + case 'I': { if (opt_srcaddr != NULL) @@ -560,6 +726,10 @@ static int read_options (int argc, char **argv) /* {{{ */ opt_device = optarg; break; + case 'm': + opt_mark = optarg; + break; + case 't': { int new_send_ttl; @@ -576,14 +746,72 @@ static int read_options (int argc, char **argv) /* {{{ */ set_opt_send_qos (optarg); break; + case 'P': + { + double new_percentile; + new_percentile = atof (optarg); + if (isnan (new_percentile) + || (new_percentile < 0.1) + || (new_percentile > 100.0)) + fprintf (stderr, "Ignoring invalid percentile: %s\n", + optarg); + else + opt_percentile = new_percentile; + } + break; + +#if USE_NCURSES + case 'g': + if (strcasecmp ("none", optarg) == 0) + opt_show_graph = 0; + else if (strcasecmp ("prettyping", optarg) == 0) + opt_show_graph = 1; + else if (strcasecmp ("histogram", optarg) == 0) + opt_show_graph = 2; + else if (strcasecmp ("boxplot", optarg) == 0) + opt_show_graph = 3; + else + fprintf (stderr, "Unknown graph option: %s\n", optarg); + break; + + case 'u': + opt_utf8 = 2; + break; + case 'U': + opt_utf8 = 1; + break; +#endif + + case 'Z': + { + char *endptr = NULL; + double tmp; + + errno = 0; + tmp = strtod (optarg, &endptr); + if ((errno != 0) || (endptr == NULL) || (*endptr != 0) || (tmp < 0.0) || (tmp > 100.0)) + { + fprintf (stderr, "Ignoring invalid -Z argument: %s\n", optarg); + fprintf (stderr, "The \"-Z\" option requires a numeric argument between 0 and 100.\n"); + } + else + opt_exit_status_threshold = tmp / 100.0; + + break; + } + case 'h': usage_exit (argv[0], 0); break; + default: usage_exit (argv[0], 1); } } + if (opt_percentile <= 0.0) + opt_percentile = OPING_DEFAULT_PERCENTILE; + return (optind); } /* }}} read_options */ @@ -635,84 +863,337 @@ static void time_calc (struct timespec *ts_dest, /* {{{ */ } /* }}} void time_calc */ #if USE_NCURSES -static int update_prettyping_graph (ping_context_t *ctx, /* {{{ */ - double latency, unsigned int sequence) +static _Bool has_utf8() /* {{{ */ { - int color = OPING_RED; - char const *symbol = "!"; - int symbolc = '!'; - size_t hist_symbols_num; - size_t index_symbols; +# if HAVE_NCURSESW_NCURSES_H + if (!opt_utf8) + { + /* Automatically determine */ + if (strcasecmp ("UTF-8", nl_langinfo (CODESET)) == 0) + opt_utf8 = 2; + else + opt_utf8 = 1; + } + return ((_Bool) (opt_utf8 - 1)); +# else + return (0); +# endif +} /* }}} _Bool has_utf8 */ - int x_max; - int x_pos; +static int update_graph_boxplot (ping_context_t *ctx) /* {{{ */ +{ + uint32_t *counters; + double *ratios; + size_t i; + size_t x_max; + size_t x; - x_max = getmaxx (ctx->window); - x_pos = ((sequence - 1) % (x_max - 4)) + 2; + clean_history (ctx); - if (_nc_unicode_locale()) + if (ctx->history_received == 0) + return (ENOENT); + + x_max = (size_t) getmaxx (ctx->window); + if (x_max <= 8) + return (EINVAL); + x_max -= 4; + + counters = calloc (x_max, sizeof (*counters)); + ratios = calloc (x_max, sizeof (*ratios)); + + /* Bucketize */ + for (i = 0; i < ctx->history_received; i++) { - hist_symbols_num = hist_symbols_utf8_num; + double latency = ctx->history_by_value[i] / 1000.0; + size_t index = (size_t) (((double) x_max) * latency / opt_interval); + + if (index >= x_max) + index = x_max - 1; + + counters[index]++; } - else { - hist_symbols_num = hist_symbols_acs_num; + + /* Sum and calc ratios */ + ratios[0] = ((double) counters[0]) / ((double) ctx->history_received); + for (x = 1; x < x_max; x++) + { + counters[x] += counters[x - 1]; + ratios[x] = ((double) counters[x]) / ((double) ctx->history_received); } - if (latency >= 0.0) + for (x = 0; x < x_max; x++) { - double ratio; - size_t intensity; - size_t index_colors; + int symbol = ' '; + _Bool reverse = 0; - ratio = latency / PING_DEF_TTL; - if (ratio > 1) { - ratio = 1.0; + if (x == 0) + { + if (ratios[x] >= 0.5) + { + symbol = BOXPLOT_MEDIAN; + reverse = 1; + } + else if (ratios[x] > 0.25) + { + symbol = BOXPLOT_BOX; + reverse = 1; + } + else if (ratios[x] > 0.025) + symbol = BOXPLOT_WHISKER_BAR; + else + symbol = ' '; /* NOP */ + } + else /* (x != 0) */ + { + if ((ratios[x - 1] < 0.5) && (ratios[x] >= 0.5)) + { + symbol = BOXPLOT_MEDIAN; + reverse = 1; + } + else if (((ratios[x] >= 0.25) && (ratios[x] <= 0.75)) + || ((ratios[x - 1] < 0.75) && (ratios[x] > 0.75))) + { + symbol = BOXPLOT_BOX; + reverse = 1; + } + else if ((ratios[x] < 0.5) && (ratios[x] >= 0.025)) + { + if (ratios[x - 1] < 0.025) + symbol = BOXPLOT_WHISKER_LEFT_END; + else + symbol = BOXPLOT_WHISKER_BAR; + } + else if ((ratios[x] > .5) && (ratios[x] < 0.975)) + { + symbol = BOXPLOT_WHISKER_BAR; + } + else if ((ratios[x] >= 0.975) && (ratios[x - 1] < 0.975)) + symbol = BOXPLOT_WHISKER_RIGHT_END; } - intensity = (size_t) ((ratio * hist_symbols_num - * hist_colors_num) - 1); + if (reverse) + wattron (ctx->window, A_REVERSE); + mvwaddch (ctx->window, /* y = */ 3, /* x = */ (int) (x + 2), symbol); + // mvwprintw (ctx->window, /* y = */ 3, /* x = */ (int) (x + 2), symbol); + if (reverse) + wattroff (ctx->window, A_REVERSE); + } + + free (counters); + free (ratios); + return (0); +} /* }}} int update_graph_boxplot */ + +static int update_graph_prettyping (ping_context_t *ctx, /* {{{ */ + double latency, unsigned int sequence) +{ + size_t x; + size_t x_max; + size_t history_offset; + + x_max = (size_t) getmaxx (ctx->window); + if (x_max <= 4) + return (EINVAL); + x_max -= 4; + + /* Determine the first index in the history we need to draw + * the graph. */ + history_offset = 0; + if (((size_t) x_max) < ctx->history_size) /* window is smaller than history */ + { + if (ctx->history_index > x_max) + history_offset = ctx->history_index - x_max; + else /* wrap around */ + history_offset = ctx->history_index + ctx->history_size - x_max; + } + else /* window is larger than history */ + { + if (ctx->history_index != ctx->history_size) /* no longer growing. */ + history_offset = ctx->history_index; + else /* start-up */ + history_offset = 0; + } + + for (x = 0; x < x_max; x++) + { + size_t index; + double latency; - index_colors = intensity / hist_symbols_num; - assert (index_colors < hist_colors_num); + int color = OPING_RED; + char const *symbol = "!"; + int symbolc = '!'; - index_symbols = intensity % hist_symbols_num; - if (_nc_unicode_locale()) + if (x >= ctx->history_size) { - color = hist_colors_utf8[index_colors]; - symbol = hist_symbols_utf8[index_symbols]; + mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, ' '); + continue; } - else + + index = (history_offset + x) % ctx->history_size; + latency = ctx->history_by_time[index]; + + if (latency >= 0.0) { - color = hist_colors_acs[index_colors]; - symbolc = hist_symbols_acs[index_symbols] | A_ALTCHARSET; + double ratio; + + size_t symbols_num = hist_symbols_acs_num; + size_t colors_num = 1; + + size_t index_symbols; + size_t index_colors; + size_t intensity; + + /* latency is in milliseconds, opt_interval is in seconds. */ + ratio = (latency * 0.001) / opt_interval; + if (ratio > 1) { + ratio = 1.0; + } + + if (has_utf8 ()) + symbols_num = hist_symbols_utf8_num; + + if (has_colors () == TRUE) + colors_num = hist_colors_num; + + intensity = (size_t) (ratio * ((double) (symbols_num * colors_num))); + if (intensity >= (symbols_num * colors_num)) + intensity = (symbols_num * colors_num) - 1; + + index_symbols = intensity % symbols_num; + assert (index_symbols < symbols_num); + + index_colors = intensity / symbols_num; + assert (index_colors < colors_num); + + if (has_utf8()) + { + color = hist_colors_utf8[index_colors]; + symbol = hist_symbols_utf8[index_symbols]; + } + else + { + color = hist_colors_acs[index_colors]; + symbolc = hist_symbols_acs[index_symbols] | A_ALTCHARSET; + } } - } - else /* if (!(latency >= 0.0)) */ - wattron (ctx->window, A_BOLD); + else /* if (!(latency >= 0.0)) */ + wattron (ctx->window, A_BOLD); + + if (has_colors () == TRUE) + wattron (ctx->window, COLOR_PAIR(color)); - wattron (ctx->window, COLOR_PAIR(color)); - if (_nc_unicode_locale()) + if (has_utf8()) + mvwprintw (ctx->window, /* y = */ 3, /* x = */ x + 2, symbol); + else + mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, symbolc); + + if (has_colors () == TRUE) + wattroff (ctx->window, COLOR_PAIR(color)); + + /* Use negation here to handle NaN correctly. */ + if (!(latency >= 0.0)) + wattroff (ctx->window, A_BOLD); + } /* for (x) */ + + return (0); +} /* }}} int update_graph_prettyping */ + +static int update_graph_histogram (ping_context_t *ctx) /* {{{ */ +{ + uint32_t *counters; + uint32_t *accumulated; + uint32_t max; + size_t i; + size_t x_max; + size_t x; + + size_t symbols_num = hist_symbols_acs_num; + + clean_history (ctx); + + if (ctx->history_received == 0) + return (ENOENT); + + if (has_utf8 ()) + symbols_num = hist_symbols_utf8_num; + + x_max = (size_t) getmaxx (ctx->window); + if (x_max <= 4) + return (EINVAL); + x_max -= 4; + + counters = calloc (x_max, sizeof (*counters)); + accumulated = calloc (x_max, sizeof (*accumulated)); + + /* Bucketize */ + max = 0; + for (i = 0; i < ctx->history_received; i++) { - mvwprintw (ctx->window, - /* y = */ 3, - /* x = */ x_pos, - symbol); - } - else { - mvwaddch (ctx->window, - /* y = */ 3, - /* x = */ x_pos, - symbolc); + double latency = ctx->history_by_value[i] / 1000.0; + size_t index = (size_t) (((double) x_max) * latency / opt_interval); + + if (index >= x_max) + index = x_max - 1; + + counters[index]++; + if (max < counters[index]) + max = counters[index]; } - wattroff (ctx->window, COLOR_PAIR(color)); - /* Use negation here to handle NaN correctly. */ - if (!(latency >= 0.0)) - wattroff (ctx->window, A_BOLD); + /* Sum */ + accumulated[0] = counters[0]; + for (x = 1; x < x_max; x++) + accumulated[x] = counters[x] + accumulated[x - 1]; + + /* Calculate ratios */ + for (x = 0; x < x_max; x++) + { + double height = ((double) counters[x]) / ((double) max); + double ratio_this = ((double) accumulated[x]) / ((double) ctx->history_received); + double ratio_prev = 0.0; + size_t index; + int color = 0; + + index = (size_t) (height * ((double) symbols_num)); + if (index >= symbols_num) + index = symbols_num - 1; + + if (x > 0) + ratio_prev = ((double) accumulated[x - 1]) / ((double) ctx->history_received); + + if (has_colors () == TRUE) + { + if ((ratio_this <= threshold_green) + || ((ratio_prev < threshold_green) + && (ratio_this > threshold_green))) + color = OPING_GREEN; + else if ((ratio_this <= threshold_yellow) + || ((ratio_prev < threshold_yellow) + && (ratio_this > threshold_yellow))) + color = OPING_YELLOW; + else + color = OPING_RED; + + wattron (ctx->window, COLOR_PAIR(color)); + } - wprintw (ctx->window, " "); + if (counters[x] == 0) + mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, ' '); + else if (has_utf8 ()) + mvwprintw (ctx->window, /* y = */ 3, /* x = */ x + 2, + hist_symbols_utf8[index]); + else + mvwaddch (ctx->window, /* y = */ 3, /* x = */ x + 2, + hist_symbols_acs[index] | A_ALTCHARSET); + + if (has_colors () == TRUE) + wattroff (ctx->window, COLOR_PAIR(color)); + + } + + free (accumulated); return (0); -} /* }}} int update_prettyping_graph */ +} /* }}} int update_graph_histogram */ static int update_stats_from_context (ping_context_t *ctx, pingobj_iter_t *iter) /* {{{ */ { @@ -747,22 +1228,27 @@ static int update_stats_from_context (ping_context_t *ctx, pingobj_iter_t *iter) ctx->latency_total); if (ctx->req_rcvd != 0) { - double average; - double deviation; + double min; + double median; + double max; + double percentile; + + min = percentile_to_latency (ctx, 0.0); + median = percentile_to_latency (ctx, 50.0); + max = percentile_to_latency (ctx, 100.0); + percentile = percentile_to_latency (ctx, opt_percentile); - average = context_get_average (ctx); - deviation = context_get_stddev (ctx); - mvwprintw (ctx->window, /* y = */ 2, /* x = */ 2, - "rtt min/avg/max/sdev = %.3f/%.3f/%.3f/%.3f ms", - ctx->latency_min, - average, - ctx->latency_max, - deviation); + "RTT[ms]: min = %.0f, median = %.0f, p(%.0f) = %.0f, max = %.0f ", + min, median, opt_percentile, percentile, max); } - if (has_colors () == TRUE) - update_prettyping_graph (ctx, latency, sequence); + if (opt_show_graph == 1) + update_graph_prettyping (ctx, latency, sequence); + else if (opt_show_graph == 2) + update_graph_histogram (ctx); + else if (opt_show_graph == 3) + update_graph_boxplot (ctx); wrefresh (ctx->window); @@ -775,12 +1261,13 @@ static int on_resize (pingobj_t *ping) /* {{{ */ int width = 0; int height = 0; int main_win_height; + int box_height = (opt_show_graph == 0) ? 4 : 5; getmaxyx (stdscr, height, width); if ((height < 1) || (width < 1)) return (EINVAL); - main_win_height = height - (5 * host_num); + main_win_height = height - (box_height * host_num); wresize (main_win, main_win_height, /* width = */ width); /* Allow scrolling */ scrollok (main_win, TRUE); @@ -804,9 +1291,9 @@ static int on_resize (pingobj_t *ping) /* {{{ */ delwin (context->window); context->window = NULL; } - context->window = newwin (/* height = */ 5, + context->window = newwin (/* height = */ box_height, /* width = */ width, - /* y = */ main_win_height + (5 * context->index), + /* y = */ main_win_height + (box_height * context->index), /* x = */ 0); } @@ -824,6 +1311,13 @@ static int check_resize (pingobj_t *ping) /* {{{ */ break; else if (key == KEY_RESIZE) need_resize = 1; + else if (key == 'g') + { + if (opt_show_graph == 3) + opt_show_graph = 1; + else if (opt_show_graph > 0) + opt_show_graph++; + } } if (need_resize) @@ -838,6 +1332,7 @@ static int pre_loop_hook (pingobj_t *ping) /* {{{ */ int width = 0; int height = 0; int main_win_height; + int box_height = (opt_show_graph == 0) ? 4 : 5; initscr (); cbreak (); @@ -859,7 +1354,7 @@ static int pre_loop_hook (pingobj_t *ping) /* {{{ */ init_pair (OPING_RED_HIST, COLOR_RED, COLOR_YELLOW); } - main_win_height = height - (5 * host_num); + main_win_height = height - (box_height * host_num); main_win = newwin (/* height = */ main_win_height, /* width = */ width, /* y = */ 0, /* x = */ 0); @@ -886,9 +1381,9 @@ static int pre_loop_hook (pingobj_t *ping) /* {{{ */ delwin (context->window); context->window = NULL; } - context->window = newwin (/* height = */ 5, + context->window = newwin (/* height = */ box_height, /* width = */ width, - /* y = */ main_win_height + (5 * context->index), + /* y = */ main_win_height + (box_height * context->index), /* x = */ 0); } @@ -954,6 +1449,30 @@ static int post_sleep_hook (__attribute__((unused)) pingobj_t *ping) /* {{{ */ } /* }}} int post_sleep_hook */ #endif +static void update_context (ping_context_t *ctx, double latency) /* {{{ */ +{ + ctx->req_sent++; + + if (latency > 0.0) + { + ctx->req_rcvd++; + ctx->latency_total += latency; + } + else + { + latency = NAN; + } + + ctx->history_by_time[ctx->history_index] = latency; + + ctx->history_dirty = 1; + + /* Update index and size. */ + ctx->history_index = (ctx->history_index + 1) % HISTORY_SIZE_MAX; + if (ctx->history_size < HISTORY_SIZE_MAX) + ctx->history_size++; +} /* }}} void update_context */ + static void update_host_hook (pingobj_iter_t *iter, /* {{{ */ __attribute__((unused)) int index) { @@ -998,31 +1517,23 @@ static void update_host_hook (pingobj_iter_t *iter, /* {{{ */ # define HOST_PRINTF(...) printf(__VA_ARGS__) #endif - context->req_sent++; + update_context (context, latency); + if (latency > 0.0) { - context->req_rcvd++; - context->latency_total += latency; - context->latency_total_square += (latency * latency); - - if ((context->latency_max < 0.0) || (context->latency_max < latency)) - context->latency_max = latency; - if ((context->latency_min < 0.0) || (context->latency_min > latency)) - context->latency_min = latency; - #if USE_NCURSES if (has_colors () == TRUE) { + double ratio; int color = OPING_GREEN; - double average = context_get_average (context); - double stddev = context_get_stddev (context); - if ((latency < (average - (2 * stddev))) - || (latency > (average + (2 * stddev)))) - color = OPING_RED; - else if ((latency < (average - stddev)) - || (latency > (average + stddev))) + ratio = latency_to_ratio (context, latency); + if (ratio < threshold_green) + color = OPING_GREEN; + else if (ratio < threshold_yellow) color = OPING_YELLOW; + else + color = OPING_RED; HOST_PRINTF ("%zu bytes from %s (%s): icmp_seq=%u ttl=%i ", data_len, context->host, context->addr, @@ -1056,7 +1567,7 @@ static void update_host_hook (pingobj_iter_t *iter, /* {{{ */ } #endif } - else + else /* if (!(latency > 0.0)) */ { #if USE_NCURSES if (has_colors () == TRUE) @@ -1086,9 +1597,13 @@ static void update_host_hook (pingobj_iter_t *iter, /* {{{ */ #endif } /* }}} void update_host_hook */ +/* Prints statistics for each host, cleans up the contexts and returns the + * number of hosts which failed to return more than the fraction + * opt_exit_status_threshold of pings. */ static int post_loop_hook (pingobj_t *ping) /* {{{ */ { pingobj_iter_t *iter; + int failure_count = 0; #if USE_NCURSES endwin (); @@ -1108,26 +1623,34 @@ static int post_loop_hook (pingobj_t *ping) /* {{{ */ context_get_packet_loss (context), context->latency_total); - if (context->req_rcvd != 0) { - double average; - double deviation; - - average = context_get_average (context); - deviation = context_get_stddev (context); + double pct_failed = 1.0 - (((double) context->req_rcvd) + / ((double) context->req_sent)); + if (pct_failed > opt_exit_status_threshold) + failure_count++; + } - printf ("rtt min/avg/max/sdev = %.3f/%.3f/%.3f/%.3f ms\n", - context->latency_min, - average, - context->latency_max, - deviation); + if (context->req_rcvd != 0) + { + double min; + double median; + double max; + double percentile; + + min = percentile_to_latency (context, 0.0); + median = percentile_to_latency (context, 50.0); + max = percentile_to_latency (context, 100.0); + percentile = percentile_to_latency (context, opt_percentile); + + printf ("RTT[ms]: min = %.0f, median = %.0f, p(%.0f) = %.0f, max = %.0f\n", + min, median, opt_percentile, percentile, max); } ping_iterator_set_context (iter, NULL); context_destroy (context); } - return (0); + return (failure_count); } /* }}} int post_loop_hook */ int main (int argc, char **argv) /* {{{ */ @@ -1161,7 +1684,7 @@ int main (int argc, char **argv) /* {{{ */ } #endif - setlocale(LC_ALL, ""); + setlocale(LC_ALL, ""); optind = read_options (argc, argv); #if !_POSIX_SAVED_IDS @@ -1212,6 +1735,12 @@ int main (int argc, char **argv) /* {{{ */ /* printf ("ts_int = %i.%09li\n", (int) ts_int.tv_sec, ts_int.tv_nsec); */ } + if (ping_setopt (ping, PING_OPT_TIMEOUT, (void*)(&opt_timeout)) != 0) + { + fprintf (stderr, "Setting timeout failed: %s\n", + ping_get_error (ping)); + } + if (opt_addrfamily != PING_DEF_AF) ping_setopt (ping, PING_OPT_AF, (void *) &opt_addrfamily); @@ -1233,6 +1762,23 @@ int main (int argc, char **argv) /* {{{ */ } } + if(opt_mark != NULL) + { + char *endp; + int mark = strtoul(opt_mark, &endp, 0); + if(opt_mark[0] != '\0' && *endp == '\0') + { + if(ping_setopt(ping, PING_OPT_MARK, (void*)(&mark)) != 0) + { + fprintf (stderr, "Setting mark failed: %s\n", + ping_get_error (ping)); + } + } + else{ + fprintf(stderr, "Ignoring invalid mark: %s\n", optarg); + } + } + if (opt_filename != NULL) { FILE *infile; @@ -1336,6 +1882,9 @@ int main (int argc, char **argv) /* {{{ */ exit (EXIT_FAILURE); } + if (host_num == 0) + exit (EXIT_FAILURE); + #if _POSIX_SAVED_IDS saved_set_uid = (uid_t) -1; #endif @@ -1366,7 +1915,12 @@ int main (int argc, char **argv) /* {{{ */ return (1); } - if (ping_send (ping) < 0) + status = ping_send (ping); + if (status == -EINTR) + { + continue; + } + else if (status < 0) { fprintf (stderr, "ping_send failed: %s\n", ping_get_error (ping)); @@ -1399,14 +1953,13 @@ int main (int argc, char **argv) /* {{{ */ /* printf ("Sleeping for %i.%09li seconds\n", (int) ts_wait.tv_sec, ts_wait.tv_nsec); */ while ((status = nanosleep (&ts_wait, &ts_wait)) != 0) { - if (errno != EINTR) + if (errno == EINTR) { - perror ("nanosleep"); - break; + continue; } - else if (opt_count == 0) + else { - /* sigint */ + perror ("nanosleep"); break; } } @@ -1417,11 +1970,19 @@ int main (int argc, char **argv) /* {{{ */ opt_count--; } /* while (opt_count != 0) */ - post_loop_hook (ping); + /* Returns the number of failed hosts according to -Z. */ + status = post_loop_hook (ping); ping_destroy (ping); - return (0); + if (status == 0) + exit (EXIT_SUCCESS); + else + { + if (status > 255) + status = 255; + exit (status); + } } /* }}} int main */ /* vim: set fdm=marker : */