-/*
- * bootchart.c
- *
- * Copyright (C) 2009-2012 Intel Coproration
- *
- * Authors:
- * Auke Kok <auke-jan.h.kok@intel.com>
- *
- * 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 the Free Software Foundation; version 2
- * of the License.
- */
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+/***
+ This file is part of systemd.
+
+ Copyright (C) 2009-2013 Intel Coproration
+
+ Authors:
+ Auke Kok <auke-jan.h.kok@intel.com>
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+ ***/
+
+/***
+
+ Many thanks to those who contributed ideas and code:
+ - Ziga Mahkovec - Original bootchart author
+ - Anders Norgaard - PyBootchartgui
+ - Michael Meeks - bootchart2
+ - Scott James Remnant - Ubuntu C-based logger
+ - Arjan van der Ven - for the idea to merge bootgraph.pl functionality
+
+ ***/
#include <sys/time.h>
#include <sys/types.h>
#include <sys/resource.h>
+#include <sys/stat.h>
#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
#include <getopt.h>
#include <limits.h>
#include <errno.h>
-
-
+#include <fcntl.h>
+#include <stdbool.h>
+#include <systemd/sd-journal.h>
+
+#include "util.h"
+#include "fileio.h"
+#include "macro.h"
+#include "conf-parser.h"
+#include "strxcpyx.h"
+#include "path-util.h"
+#include "store.h"
+#include "svg.h"
#include "bootchart.h"
double graph_start;
int pscount;
int cpus;
double interval;
-FILE *of;
+FILE *of = NULL;
int overrun = 0;
static int exiting = 0;
+int sysfd=-1;
/* graph defaults */
-int entropy = 0;
-int initcall = 1;
-int relative;
-int filter = 1;
-int pss = 0;
+bool arg_entropy = false;
+bool initcall = true;
+bool arg_relative = false;
+bool arg_filter = true;
+bool arg_show_cmdline = false;
+bool arg_pss = false;
int samples;
-int len = 500; /* we record len+1 (1 start sample) */
-double hz = 25.0; /* 20 seconds log time */
-double scale_x = 100.0; /* 100px = 1sec */
-double scale_y = 20.0; /* 16px = 1 process bar */
+int arg_samples_len = 500; /* we record len+1 (1 start sample) */
+double arg_hz = 25.0; /* 20 seconds log time */
+double arg_scale_x = 100.0; /* 100px = 1sec */
+double arg_scale_y = 20.0; /* 16px = 1 process bar */
+
+char arg_init_path[PATH_MAX] = "/sbin/init";
+char arg_output_path[PATH_MAX] = "/run/log";
+
+static void signal_handler(int sig) {
+ if (sig++)
+ sig--;
+ exiting = 1;
+}
-char init_path[PATH_MAX] = "/sbin/init";
-char output_path[PATH_MAX] = "/var/log";
+#define BOOTCHART_CONF "/etc/systemd/bootchart.conf"
+
+#define BOOTCHART_MAX (16*1024*1024)
+
+static void parse_conf(void) {
+ char *init = NULL, *output = NULL;
+ const ConfigTableItem items[] = {
+ { "Bootchart", "Samples", config_parse_int, 0, &arg_samples_len },
+ { "Bootchart", "Frequency", config_parse_double, 0, &arg_hz },
+ { "Bootchart", "Relative", config_parse_bool, 0, &arg_relative },
+ { "Bootchart", "Filter", config_parse_bool, 0, &arg_filter },
+ { "Bootchart", "Output", config_parse_path, 0, &output },
+ { "Bootchart", "Init", config_parse_path, 0, &init },
+ { "Bootchart", "PlotMemoryUsage", config_parse_bool, 0, &arg_pss },
+ { "Bootchart", "PlotEntropyGraph", config_parse_bool, 0, &arg_entropy },
+ { "Bootchart", "ScaleX", config_parse_double, 0, &arg_scale_x },
+ { "Bootchart", "ScaleY", config_parse_double, 0, &arg_scale_y },
+ { NULL, NULL, NULL, 0, NULL }
+ };
+ _cleanup_fclose_ FILE *f;
+ int r;
+
+ f = fopen(BOOTCHART_CONF, "re");
+ if (!f)
+ return;
+
+ r = config_parse(NULL, BOOTCHART_CONF, f,
+ NULL, config_item_table_lookup, (void*) items, true, NULL);
+ if (r < 0)
+ log_warning("Failed to parse configuration file: %s", strerror(-r));
+
+ if (init != NULL)
+ strscpy(arg_init_path, sizeof(arg_init_path), init);
+ if (output != NULL)
+ strscpy(arg_output_path, sizeof(arg_output_path), output);
+}
-static struct rlimit rlim;
+static int parse_args(int argc, char *argv[]) {
+ static struct option options[] = {
+ {"rel", no_argument, NULL, 'r'},
+ {"freq", required_argument, NULL, 'f'},
+ {"samples", required_argument, NULL, 'n'},
+ {"pss", no_argument, NULL, 'p'},
+ {"output", required_argument, NULL, 'o'},
+ {"init", required_argument, NULL, 'i'},
+ {"no-filter", no_argument, NULL, 'F'},
+ {"cmdline", no_argument, NULL, 'C'},
+ {"help", no_argument, NULL, 'h'},
+ {"scale-x", required_argument, NULL, 'x'},
+ {"scale-y", required_argument, NULL, 'y'},
+ {"entropy", no_argument, NULL, 'e'},
+ {NULL, 0, NULL, 0}
+ };
+ int c;
+
+ while ((c = getopt_long(argc, argv, "erpf:n:o:i:FChx:y:", options, NULL)) >= 0) {
+ int r;
+
+ switch (c) {
+ case 'r':
+ arg_relative = true;
+ break;
+ case 'f':
+ r = safe_atod(optarg, &arg_hz);
+ if (r < 0)
+ log_warning("failed to parse --freq/-f argument '%s': %s",
+ optarg, strerror(-r));
+ break;
+ case 'F':
+ arg_filter = false;
+ break;
+ case 'C':
+ arg_show_cmdline = true;
+ break;
+ case 'n':
+ r = safe_atoi(optarg, &arg_samples_len);
+ if (r < 0)
+ log_warning("failed to parse --samples/-n argument '%s': %s",
+ optarg, strerror(-r));
+ break;
+ case 'o':
+ path_kill_slashes(optarg);
+ strscpy(arg_output_path, sizeof(arg_output_path), optarg);
+ break;
+ case 'i':
+ path_kill_slashes(optarg);
+ strscpy(arg_init_path, sizeof(arg_init_path), optarg);
+ break;
+ case 'p':
+ arg_pss = true;
+ break;
+ case 'x':
+ r = safe_atod(optarg, &arg_scale_x);
+ if (r < 0)
+ log_warning("failed to parse --scale-x/-x argument '%s': %s",
+ optarg, strerror(-r));
+ break;
+ case 'y':
+ r = safe_atod(optarg, &arg_scale_y);
+ if (r < 0)
+ log_warning("failed to parse --scale-y/-y argument '%s': %s",
+ optarg, strerror(-r));
+ break;
+ case 'e':
+ arg_entropy = true;
+ break;
+ case 'h':
+ fprintf(stderr, "Usage: %s [OPTIONS]\n", argv[0]);
+ fprintf(stderr, " --rel, -r Record time relative to recording\n");
+ fprintf(stderr, " --freq, -f f Sample frequency [%f]\n", arg_hz);
+ fprintf(stderr, " --samples, -n N Stop sampling at [%d] samples\n", arg_samples_len);
+ fprintf(stderr, " --scale-x, -x N Scale the graph horizontally [%f] \n", arg_scale_x);
+ fprintf(stderr, " --scale-y, -y N Scale the graph vertically [%f] \n", arg_scale_y);
+ fprintf(stderr, " --pss, -p Enable PSS graph (CPU intensive)\n");
+ fprintf(stderr, " --entropy, -e Enable the entropy_avail graph\n");
+ fprintf(stderr, " --output, -o [PATH] Path to output files [%s]\n", arg_output_path);
+ fprintf(stderr, " --init, -i [PATH] Path to init executable [%s]\n", arg_init_path);
+ fprintf(stderr, " --no-filter, -F Disable filtering of processes from the graph\n");
+ fprintf(stderr, " that are of less importance or short-lived\n");
+ fprintf(stderr, " --cmdline, -C Display the full command line with arguments\n");
+ fprintf(stderr, " of processes, instead of only the process name\n");
+ fprintf(stderr, " --help, -h Display this message\n");
+ fprintf(stderr, "See bootchart.conf for more information.\n");
+ exit (EXIT_SUCCESS);
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (arg_samples_len > MAXSAMPLES) {
+ fprintf(stderr, "Error: samples exceeds maximum\n");
+ return -EINVAL;
+ }
+
+ if (arg_hz <= 0.0) {
+ fprintf(stderr, "Error: Frequency needs to be > 0\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
-static void signal_handler(int sig)
+static void do_journal_append(char *file)
{
- if (sig++)
- sig--;
- exiting = 1;
+ struct iovec iovec[5];
+ int r, f, j = 0;
+ ssize_t n;
+ char _cleanup_free_ *bootchart_file = NULL, *bootchart_message = NULL,
+ *p = NULL;
+
+ bootchart_file = strappend("BOOTCHART_FILE=", file);
+ if (bootchart_file)
+ IOVEC_SET_STRING(iovec[j++], bootchart_file);
+
+ IOVEC_SET_STRING(iovec[j++], "MESSAGE_ID=9f26aa562cf440c2b16c773d0479b518");
+ IOVEC_SET_STRING(iovec[j++], "PRIORITY=7");
+ bootchart_message = strjoin("MESSAGE=Bootchart created: ", file, NULL);
+ if (bootchart_message)
+ IOVEC_SET_STRING(iovec[j++], bootchart_message);
+
+ p = malloc(9 + BOOTCHART_MAX);
+ if (!p) {
+ r = log_oom();
+ return;
+ }
+
+ memcpy(p, "BOOTCHART=", 10);
+
+ f = open(file, O_RDONLY);
+ if (f < 0) {
+ log_error("Failed to read bootchart data: %m\n");
+ return;
+ }
+ n = loop_read(f, p + 10, BOOTCHART_MAX, false);
+ if (n < 0) {
+ log_error("Failed to read bootchart data: %s\n", strerror(-n));
+ close(f);
+ return;
+ }
+ close(f);
+
+ iovec[j].iov_base = p;
+ iovec[j].iov_len = 10 + n;
+ j++;
+
+ r = sd_journal_sendv(iovec, j);
+ if (r < 0)
+ log_error("Failed to send bootchart: %s", strerror(-r));
}
-
-int main(int argc, char *argv[])
-{
- struct sigaction sig;
- struct ps_struct *ps;
- char output_file[PATH_MAX];
- char datestr[200];
- time_t t;
- FILE *f;
- int gind;
- int i;
-
- memset(&t, 0, sizeof(time_t));
-
- rlim.rlim_cur = 4096;
- rlim.rlim_max = 4096;
- (void) setrlimit(RLIMIT_NOFILE, &rlim);
-
- f = fopen("/etc/systemd/bootchart.conf", "r");
- if (f) {
- char buf[256];
- char *key;
- char *val;
-
- while (fgets(buf, 80, f) != NULL) {
- char *c;
-
- c = strchr(buf, '\n');
- if (c) *c = 0; /* remove trailing \n */
-
- if (buf[0] == '#')
- continue; /* comment line */
-
- key = strtok(buf, "=");
- if (!key)
- continue;
- val = strtok(NULL, "=");
- if (!val)
- continue;
-
- // todo: filter leading/trailing whitespace
-
- if (!strcmp(key, "samples"))
- len = atoi(val);
- if (!strcmp(key, "freq"))
- hz = atof(val);
- if (!strcmp(key, "rel"))
- relative = atoi(val);
- if (!strcmp(key, "filter"))
- filter = atoi(val);
- if (!strcmp(key, "pss"))
- pss = atoi(val);
- if (!strcmp(key, "output"))
- strncpy(output_path, val, PATH_MAX - 1);
- if (!strcmp(key, "init"))
- strncpy(init_path, val, PATH_MAX - 1);
- if (!strcmp(key, "scale_x"))
- scale_x = atof(val);
- if (!strcmp(key, "scale_y"))
- scale_y = atof(val);
- if (!strcmp(key, "entropy"))
- entropy = atoi(val);
- }
- fclose(f);
- }
-
- while (1) {
- static struct option opts[] = {
- {"rel", 0, NULL, 'r'},
- {"freq", 1, NULL, 'f'},
- {"samples", 1, NULL, 'n'},
- {"pss", 0, NULL, 'p'},
- {"output", 1, NULL, 'o'},
- {"init", 1, NULL, 'i'},
- {"filter", 0, NULL, 'F'},
- {"help", 0, NULL, 'h'},
- {"scale-x", 1, NULL, 'x'},
- {"scale-y", 1, NULL, 'y'},
- {"entropy", 0, NULL, 'e'},
- {NULL, 0, NULL, 0}
- };
-
- gind = 0;
-
- i = getopt_long(argc, argv, "erpf:n:o:i:Fhx:y:", opts, &gind);
- if (i == -1)
- break;
- switch (i) {
- case 'r':
- relative = 1;
- break;
- case 'f':
- hz = atof(optarg);
- break;
- case 'F':
- filter = 0;
- break;
- case 'n':
- len = atoi(optarg);
- break;
- case 'o':
- strncpy(output_path, optarg, PATH_MAX - 1);
- break;
- case 'i':
- strncpy(init_path, optarg, PATH_MAX - 1);
- break;
- case 'p':
- pss = 1;
- break;
- case 'x':
- scale_x = atof(optarg);
- break;
- case 'y':
- scale_y = atof(optarg);
- break;
- case 'e':
- entropy = 1;
- break;
- case 'h':
- fprintf(stderr, "Usage: %s [OPTIONS]\n", argv[0]);
- fprintf(stderr, " --rel, -r Record time relative to recording\n");
- fprintf(stderr, " --freq, -f N Sample frequency [%f]\n", hz);
- fprintf(stderr, " --samples, -n N Stop sampling at [%d] samples\n", len);
- fprintf(stderr, " --scale-x, -x N Scale the graph horizontally [%f] \n", scale_x);
- fprintf(stderr, " --scale-y, -y N Scale the graph vertically [%f] \n", scale_y);
- fprintf(stderr, " --pss, -p Enable PSS graph (CPU intensive)\n");
- fprintf(stderr, " --entropy, -e Enable the entropy_avail graph\n");
- fprintf(stderr, " --output, -o [PATH] Path to output files [%s]\n", output_path);
- fprintf(stderr, " --init, -i [PATH] Path to init executable [%s]\n", init_path);
- fprintf(stderr, " --filter, -F Disable filtering of processes from the graph\n");
- fprintf(stderr, " that are of less importance or short-lived\n");
- fprintf(stderr, " --help, -h Display this message\n");
- fprintf(stderr, "See the installed README and bootchartd.conf.example for more information.\n");
- exit (EXIT_SUCCESS);
- break;
- default:
- break;
- }
- }
-
- if (len > MAXSAMPLES) {
- fprintf(stderr, "Error: samples exceeds maximum\n");
- exit(EXIT_FAILURE);
- }
-
- if (hz <= 0.0) {
- fprintf(stderr, "Error: Frequency needs to be > 0\n");
- exit(EXIT_FAILURE);
- }
-
- /*
- * If the kernel executed us through init=/sbin/bootchartd, then
- * fork:
- * - parent execs executable specified via init_path[] (/sbin/init by default) as pid=1
- * - child logs data
- */
- if (getpid() == 1) {
- if (fork()) {
- /* parent */
- execl(init_path, init_path, NULL);
- }
- }
-
- /* start with empty ps LL */
- ps_first = malloc(sizeof(struct ps_struct));
- if (!ps_first) {
- perror("malloc(ps_struct)");
- exit(EXIT_FAILURE);
- }
- memset(ps_first, 0, sizeof(struct ps_struct));
-
- /* handle TERM/INT nicely */
- memset(&sig, 0, sizeof(struct sigaction));
- sig.sa_handler = signal_handler;
- sigaction(SIGHUP, &sig, NULL);
-
- interval = (1.0 / hz) * 1000000000.0;
-
- log_uptime();
-
- /* main program loop */
- while (!exiting) {
- int res;
- double sample_stop;
- struct timespec req;
- time_t newint_s;
- long newint_ns;
- double elapsed;
- double timeleft;
-
- sampletime[samples] = gettime_ns();
-
- /* wait for /proc to become available, discarding samples */
- if (!(graph_start > 0.0))
- log_uptime();
- else
- log_sample(samples);
-
- sample_stop = gettime_ns();
-
- elapsed = (sample_stop - sampletime[samples]) * 1000000000.0;
- timeleft = interval - elapsed;
-
- newint_s = (time_t)(timeleft / 1000000000.0);
- newint_ns = (long)(timeleft - (newint_s * 1000000000.0));
-
- /*
- * check if we have not consumed our entire timeslice. If we
- * do, don't sleep and take a new sample right away.
- * we'll lose all the missed samples and overrun our total
- * time
- */
- if ((newint_ns > 0) || (newint_s > 0)) {
- req.tv_sec = newint_s;
- req.tv_nsec = newint_ns;
-
- res = nanosleep(&req, NULL);
- if (res) {
- if (errno == EINTR) {
- /* caught signal, probably HUP! */
- break;
- }
- perror("nanosleep()");
- exit (EXIT_FAILURE);
- }
- } else {
- overrun++;
- /* calculate how many samples we lost and scrap them */
- len = len + ((int)(newint_ns / interval));
- }
-
- samples++;
-
- if (samples > len)
- break;
-
- }
-
- /* do some cleanup, close fd's */
- ps = ps_first;
- while (ps->next_ps) {
- ps = ps->next_ps;
- if (ps->schedstat)
- close(ps->schedstat);
- if (ps->sched)
- close(ps->sched);
- if (ps->smaps)
- fclose(ps->smaps);
- }
- closedir(proc);
-
- t = time(NULL);
- strftime(datestr, sizeof(datestr), "%Y%m%d-%H%M", localtime(&t));
- snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", output_path, datestr);
-
- of = fopen(output_file, "w");
- if (!of) {
- perror("open output_file");
- exit (EXIT_FAILURE);
- }
-
- svg_do();
-
- fprintf(stderr, "bootchartd: Wrote %s\n", output_file);
- fclose(of);
-
- /* nitpic cleanups */
- ps = ps_first;
- while (ps->next_ps) {
- struct ps_struct *old = ps;
- ps = ps->next_ps;
- free(old->sample);
- free(old);
- }
- free(ps->sample);
- free(ps);
-
- /* don't complain when overrun once, happens most commonly on 1st sample */
- if (overrun > 1)
- fprintf(stderr, "bootchartd: Warning: sample time overrun %i times\n", overrun);
-
- return 0;
+int main(int argc, char *argv[]) {
+ _cleanup_free_ char *build = NULL;
+ struct sigaction sig = {
+ .sa_handler = signal_handler,
+ };
+ struct ps_struct *ps;
+ char output_file[PATH_MAX];
+ char datestr[200];
+ time_t t = 0;
+ int r;
+ struct rlimit rlim;
+
+ parse_conf();
+
+ r = parse_args(argc, argv);
+ if (r < 0)
+ return EXIT_FAILURE;
+
+ /*
+ * If the kernel executed us through init=/usr/lib/systemd/systemd-bootchart, then
+ * fork:
+ * - parent execs executable specified via init_path[] (/sbin/init by default) as pid=1
+ * - child logs data
+ */
+ if (getpid() == 1) {
+ if (fork()) {
+ /* parent */
+ execl(arg_init_path, arg_init_path, NULL);
+ }
+ }
+ argv[0][0] = '@';
+
+ rlim.rlim_cur = 4096;
+ rlim.rlim_max = 4096;
+ (void) setrlimit(RLIMIT_NOFILE, &rlim);
+
+ /* start with empty ps LL */
+ ps_first = calloc(1, sizeof(struct ps_struct));
+ if (!ps_first) {
+ perror("calloc(ps_struct)");
+ exit(EXIT_FAILURE);
+ }
+
+ /* handle TERM/INT nicely */
+ sigaction(SIGHUP, &sig, NULL);
+
+ interval = (1.0 / arg_hz) * 1000000000.0;
+
+ log_uptime();
+
+ /* main program loop */
+ for (samples = 0; !exiting && samples < arg_samples_len; samples++) {
+ int res;
+ double sample_stop;
+ struct timespec req;
+ time_t newint_s;
+ long newint_ns;
+ double elapsed;
+ double timeleft;
+
+ sampletime[samples] = gettime_ns();
+
+ if (!of && (access(arg_output_path, R_OK|W_OK|X_OK) == 0)) {
+ t = time(NULL);
+ strftime(datestr, sizeof(datestr), "%Y%m%d-%H%M", localtime(&t));
+ snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", arg_output_path, datestr);
+ of = fopen(output_file, "w");
+ }
+
+ if (sysfd < 0)
+ sysfd = open("/sys", O_RDONLY);
+
+ if (!build)
+ parse_env_file("/etc/os-release", NEWLINE,
+ "PRETTY_NAME", &build,
+ NULL);
+
+ /* wait for /proc to become available, discarding samples */
+ if (graph_start <= 0.0)
+ log_uptime();
+ else
+ log_sample(samples);
+
+ sample_stop = gettime_ns();
+
+ elapsed = (sample_stop - sampletime[samples]) * 1000000000.0;
+ timeleft = interval - elapsed;
+
+ newint_s = (time_t)(timeleft / 1000000000.0);
+ newint_ns = (long)(timeleft - (newint_s * 1000000000.0));
+
+ /*
+ * check if we have not consumed our entire timeslice. If we
+ * do, don't sleep and take a new sample right away.
+ * we'll lose all the missed samples and overrun our total
+ * time
+ */
+ if (newint_ns > 0 || newint_s > 0) {
+ req.tv_sec = newint_s;
+ req.tv_nsec = newint_ns;
+
+ res = nanosleep(&req, NULL);
+ if (res) {
+ if (errno == EINTR) {
+ /* caught signal, probably HUP! */
+ break;
+ }
+ perror("nanosleep()");
+ exit (EXIT_FAILURE);
+ }
+ } else {
+ overrun++;
+ /* calculate how many samples we lost and scrap them */
+ arg_samples_len -= (int)(newint_ns / interval);
+ }
+ }
+
+ /* do some cleanup, close fd's */
+ ps = ps_first;
+ while (ps->next_ps) {
+ ps = ps->next_ps;
+ if (ps->schedstat)
+ close(ps->schedstat);
+ if (ps->sched)
+ close(ps->sched);
+ if (ps->smaps)
+ fclose(ps->smaps);
+ }
+
+ if (!of) {
+ t = time(NULL);
+ strftime(datestr, sizeof(datestr), "%Y%m%d-%H%M", localtime(&t));
+ snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", arg_output_path, datestr);
+ of = fopen(output_file, "w");
+ }
+
+ if (!of) {
+ fprintf(stderr, "opening output file '%s': %m\n", output_file);
+ exit (EXIT_FAILURE);
+ }
+
+ svg_do(build);
+
+ fprintf(stderr, "systemd-bootchart wrote %s\n", output_file);
+
+ do_journal_append(output_file);
+
+ if (of)
+ fclose(of);
+
+ closedir(proc);
+ if (sysfd >= 0)
+ close(sysfd);
+
+ /* nitpic cleanups */
+ ps = ps_first;
+ while (ps->next_ps) {
+ struct ps_struct *old = ps;
+ ps = ps->next_ps;
+ free(old->sample);
+ free(old);
+ }
+ free(ps->sample);
+ free(ps);
+
+ /* don't complain when overrun once, happens most commonly on 1st sample */
+ if (overrun > 1)
+ fprintf(stderr, "systemd-boochart: Warning: sample time overrun %i times\n", overrun);
+
+ return 0;
}
~ianmdlvl / elogind.git / blobdiff