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Diffstat (limited to 'src/bootchart/bootchart.c')
-rw-r--r--src/bootchart/bootchart.c127
1 files changed, 64 insertions, 63 deletions
diff --git a/src/bootchart/bootchart.c b/src/bootchart/bootchart.c
index 65f16c517c..a722b2aabf 100644
--- a/src/bootchart/bootchart.c
+++ b/src/bootchart/bootchart.c
@@ -1,5 +1,7 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
/***
- bootchart.c - This file is part of systemd-bootchart
+ This file is part of systemd.
Copyright (C) 2009-2013 Intel Coproration
@@ -47,14 +49,15 @@
#include <fcntl.h>
#include <stdbool.h>
-
-#include "bootchart.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;
double log_start;
@@ -72,33 +75,30 @@ static int exiting = 0;
int sysfd=-1;
/* graph defaults */
-bool entropy = false;
+bool arg_entropy = false;
bool initcall = true;
-bool relative = false;
-bool filter = true;
-bool show_cmdline = false;
-bool pss = false;
+bool arg_relative = false;
+bool arg_filter = true;
+bool arg_show_cmdline = false;
+bool arg_pss = false;
int samples;
-int samples_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 init_path[PATH_MAX] = "/sbin/init";
-char output_path[PATH_MAX] = "/run/log";
+char arg_init_path[PATH_MAX] = "/sbin/init";
+char arg_output_path[PATH_MAX] = "/run/log";
static struct rlimit rlim;
-static void signal_handler(int sig)
-{
+static void signal_handler(int sig) {
if (sig++)
sig--;
exiting = 1;
}
-
-int main(int argc, char *argv[])
-{
+int main(int argc, char *argv[]) {
_cleanup_free_ char *build = NULL;
struct sigaction sig;
struct ps_struct *ps;
@@ -112,16 +112,16 @@ int main(int argc, char *argv[])
char *init = NULL, *output = NULL;
const ConfigTableItem items[] = {
- { "Bootchart", "Samples", config_parse_int, 0, &samples_len },
- { "Bootchart", "Frequency", config_parse_double, 0, &hz },
- { "Bootchart", "Relative", config_parse_bool, 0, &relative },
- { "Bootchart", "Filter", config_parse_bool, 0, &filter },
- { "Bootchart", "Output", config_parse_path, 0, &output },
- { "Bootchart", "Init", config_parse_path, 0, &init },
- { "Bootchart", "PlotMemoryUsage", config_parse_bool, 0, &pss },
- { "Bootchart", "PlotEntropyGraph", config_parse_bool, 0, &entropy },
- { "Bootchart", "ScaleX", config_parse_double, 0, &scale_x },
- { "Bootchart", "ScaleY", config_parse_double, 0, &scale_y },
+ { "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 }
};
@@ -137,9 +137,9 @@ int main(int argc, char *argv[])
log_warning("Failed to parse configuration file: %s", strerror(-r));
if (init != NULL)
- strscpy(init_path, sizeof(init_path), init);
+ strscpy(arg_init_path, sizeof(arg_init_path), init);
if (output != NULL)
- strscpy(output_path, sizeof(output_path), output);
+ strscpy(arg_output_path, sizeof(arg_output_path), output);
}
while (1) {
@@ -166,63 +166,63 @@ int main(int argc, char *argv[])
break;
switch (i) {
case 'r':
- relative = true;
+ arg_relative = true;
break;
case 'f':
- r = safe_atod(optarg, &hz);
+ 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':
- filter = false;
+ arg_filter = false;
break;
case 'C':
- show_cmdline = true;
+ arg_show_cmdline = true;
break;
case 'n':
- r = safe_atoi(optarg, &samples_len);
+ 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(output_path, sizeof(output_path), optarg);
+ strscpy(arg_output_path, sizeof(arg_output_path), optarg);
break;
case 'i':
path_kill_slashes(optarg);
- strscpy(init_path, sizeof(init_path), optarg);
+ strscpy(arg_init_path, sizeof(arg_init_path), optarg);
break;
case 'p':
- pss = true;
+ arg_pss = true;
break;
case 'x':
- r = safe_atod(optarg, &scale_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, &scale_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':
- entropy = true;
+ 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", hz);
- fprintf(stderr, " --samples, -n N Stop sampling at [%d] samples\n", samples_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, " --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", output_path);
- fprintf(stderr, " --init, -i [PATH] Path to init executable [%s]\n", init_path);
+ 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");
@@ -236,12 +236,12 @@ int main(int argc, char *argv[])
}
}
- if (samples_len > MAXSAMPLES) {
+ if (arg_samples_len > MAXSAMPLES) {
fprintf(stderr, "Error: samples exceeds maximum\n");
exit(EXIT_FAILURE);
}
- if (hz <= 0.0) {
+ if (arg_hz <= 0.0) {
fprintf(stderr, "Error: Frequency needs to be > 0\n");
exit(EXIT_FAILURE);
}
@@ -255,7 +255,7 @@ int main(int argc, char *argv[])
if (getpid() == 1) {
if (fork()) {
/* parent */
- execl(init_path, init_path, NULL);
+ execl(arg_init_path, arg_init_path, NULL);
}
}
argv[0][0] = '@';
@@ -272,7 +272,7 @@ int main(int argc, char *argv[])
sig.sa_handler = signal_handler;
sigaction(SIGHUP, &sig, NULL);
- interval = (1.0 / hz) * 1000000000.0;
+ interval = (1.0 / arg_hz) * 1000000000.0;
log_uptime();
@@ -288,22 +288,20 @@ int main(int argc, char *argv[])
sampletime[samples] = gettime_ns();
- if (!of && (access(output_path, R_OK|W_OK|X_OK) == 0)) {
+ 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", output_path, datestr);
+ snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", arg_output_path, datestr);
of = fopen(output_file, "w");
}
- if (sysfd < 0) {
+ if (sysfd < 0)
sysfd = open("/sys", O_RDONLY);
- }
- if (!build) {
+ 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))
@@ -341,12 +339,12 @@ int main(int argc, char *argv[])
} else {
overrun++;
/* calculate how many samples we lost and scrap them */
- samples_len = samples_len + ((int)(newint_ns / interval));
+ arg_samples_len = arg_samples_len + ((int)(newint_ns / interval));
}
samples++;
- if (samples > samples_len)
+ if (samples > arg_samples_len)
break;
}
@@ -366,7 +364,7 @@ int main(int argc, char *argv[])
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", output_path, datestr);
+ snprintf(output_file, PATH_MAX, "%s/bootchart-%s.svg", arg_output_path, datestr);
of = fopen(output_file, "w");
}
@@ -378,10 +376,13 @@ int main(int argc, char *argv[])
svg_do(build);
fprintf(stderr, "systemd-bootchart wrote %s\n", output_file);
- fclose(of);
+
+ if (of)
+ fclose(of);
closedir(proc);
- close(sysfd);
+ if (sysfd >= 0)
+ close(sysfd);
/* nitpic cleanups */
ps = ps_first;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-26 17:15:41 +0000