/***
This file is part of systemd.
- Copyright (C) 2009-2013 Intel Coproration
+ Copyright (C) 2009-2013 Intel Corporation
Authors:
Auke Kok <auke-jan.h.kok@intel.com>
#include <unistd.h>
#include <stdlib.h>
#include <limits.h>
-#include <sys/types.h>
-#include <sys/stat.h>
#include <stdio.h>
#include <string.h>
#include <dirent.h>
#include <time.h>
#include "util.h"
+#include "time-util.h"
#include "strxcpyx.h"
#include "store.h"
#include "bootchart.h"
+#include "cgroup-util.h"
/*
* Alloc a static 4k buffer for stdio - primarily used to increase
clock_gettime(CLOCK_MONOTONIC, &n);
- return (n.tv_sec + (n.tv_nsec / 1000000000.0));
+ return (n.tv_sec + (n.tv_nsec / (double) NSEC_PER_SEC));
}
-void log_uptime(void) {
- _cleanup_fclose_ FILE *f = NULL;
- char str[32];
- double uptime;
-
- f = fopen("/proc/uptime", "r");
-
- if (!f)
- return;
- if (!fscanf(f, "%s %*s", str))
- return;
-
- uptime = strtod(str, NULL);
+static double gettime_up(void) {
+ struct timespec n;
- log_start = gettime_ns();
+ clock_gettime(CLOCK_BOOTTIME, &n);
+ return (n.tv_sec + (n.tv_nsec / (double) NSEC_PER_SEC));
+}
- /* start graph at kernel boot time */
+void log_uptime(void) {
if (arg_relative)
- graph_start = log_start;
- else
+ graph_start = log_start = gettime_ns();
+ else {
+ double uptime = gettime_up();
+
+ log_start = gettime_ns();
graph_start = log_start - uptime;
+ }
}
static char *bufgetline(char *buf) {
}
void log_sample(int sample, struct list_sample_data **ptr) {
- static int vmstat;
- static int schedstat;
+ static int vmstat = -1;
+ static int schedstat = -1;
char buf[4096];
char key[256];
char val[256];
int c;
int p;
int mod;
- static int e_fd;
+ static int e_fd = -1;
ssize_t s;
ssize_t n;
struct dirent *ent;
struct list_sample_data *sampledata;
struct ps_sched_struct *ps_prev = NULL;
-
-
sampledata = *ptr;
/* all the per-process stuff goes here */
rewinddir(proc);
}
- if (!vmstat) {
+ if (vmstat < 0) {
/* block stuff */
vmstat = openat(procfd, "vmstat", O_RDONLY);
if (vmstat == -1) {
- perror("open /proc/vmstat");
- exit (EXIT_FAILURE);
+ log_error_errno(errno, "Failed to open /proc/vmstat: %m");
+ exit(EXIT_FAILURE);
}
}
n = pread(vmstat, buf, sizeof(buf) - 1, 0);
if (n <= 0) {
close(vmstat);
+ vmstat = -1;
return;
}
buf[n] = '\0';
break;
}
- if (!schedstat) {
+ if (schedstat < 0) {
/* overall CPU utilization */
schedstat = openat(procfd, "schedstat", O_RDONLY);
if (schedstat == -1) {
- perror("open /proc/schedstat");
- exit (EXIT_FAILURE);
+ log_error_errno(errno, "Failed to open /proc/schedstat (requires CONFIG_SCHEDSTATS=y in kernel config): %m");
+ exit(EXIT_FAILURE);
}
}
n = pread(schedstat, buf, sizeof(buf) - 1, 0);
if (n <= 0) {
close(schedstat);
+ schedstat = -1;
return;
}
buf[n] = '\0';
m = buf;
while (m) {
+ int r;
+
if (sscanf(m, "%s %*s %*s %*s %*s %*s %*s %s %s", key, rt, wt) < 3)
goto schedstat_next;
if (strstr(key, "cpu")) {
- c = atoi((const char*)(key+3));
- if (c > MAXCPUS)
+ r = safe_atoi((const char*)(key+3), &c);
+ if (r < 0 || c > MAXCPUS -1)
/* Oops, we only have room for MAXCPUS data */
break;
sampledata->runtime[c] = atoll(rt);
}
if (arg_entropy) {
- if (!e_fd) {
+ if (e_fd < 0) {
e_fd = openat(procfd, "sys/kernel/random/entropy_avail", O_RDONLY);
+ if (e_fd == -1) {
+ log_error_errno(errno, "Failed to open /proc/sys/kernel/random/entropy_avail: %m");
+ exit(EXIT_FAILURE);
+ }
}
- if (e_fd) {
- n = pread(e_fd, buf, sizeof(buf) - 1, 0);
- if (n > 0) {
- buf[n] = '\0';
- sampledata->entropy_avail = atoi(buf);
- }
+ n = pread(e_fd, buf, sizeof(buf) - 1, 0);
+ if (n <= 0) {
+ close(e_fd);
+ e_fd = -1;
+ } else {
+ buf[n] = '\0';
+ sampledata->entropy_avail = atoi(buf);
}
}
_cleanup_fclose_ FILE *st = NULL;
char t[32];
struct ps_struct *parent;
+ int r;
- ps->next_ps = calloc(1, sizeof(struct ps_struct));
+ ps->next_ps = new0(struct ps_struct, 1);
if (!ps->next_ps) {
- perror("calloc(ps_struct)");
+ log_oom();
exit (EXIT_FAILURE);
}
ps = ps->next_ps;
ps->pid = pid;
+ ps->sched = -1;
+ ps->schedstat = -1;
- ps->sample = calloc(1, sizeof(struct ps_sched_struct));
+ ps->sample = new0(struct ps_sched_struct, 1);
if (!ps->sample) {
- perror("calloc(ps_struct)");
+ log_oom();
exit (EXIT_FAILURE);
}
ps->sample->sampledata = sampledata;
pscount++;
/* mark our first sample */
- ps->first = ps->sample;
+ ps->first = ps->last = ps->sample;
ps->sample->runtime = atoll(rt);
ps->sample->waittime = atoll(wt);
/* get name, start time */
- if (!ps->sched) {
+ if (ps->sched < 0) {
sprintf(filename, "%d/sched", pid);
ps->sched = openat(procfd, filename, O_RDONLY);
if (ps->sched == -1)
s = pread(ps->sched, buf, sizeof(buf) - 1, 0);
if (s <= 0) {
close(ps->sched);
+ ps->sched = -1;
continue;
}
buf[s] = '\0';
if (!sscanf(m, "%*s %*s %s", t))
continue;
- ps->starttime = strtod(t, NULL) / 1000.0;
+ r = safe_atod(t, &ps->starttime);
+ if (r < 0)
+ continue;
+
+ ps->starttime /= 1000.0;
+
+ if (arg_show_cgroup)
+ /* if this fails, that's OK */
+ cg_pid_get_path(SYSTEMD_CGROUP_CONTROLLER,
+ ps->pid, &ps->cgroup);
/* ppid */
sprintf(filename, "%d/stat", pid);
fd = openat(procfd, filename, O_RDONLY);
+ if (fd == -1)
+ continue;
st = fdopen(fd, "r");
- if (!st)
+ if (!st) {
+ close(fd);
continue;
+ }
if (!fscanf(st, "%*s %*s %*s %i", &p)) {
continue;
}
while ((parent->next_ps && parent->pid != ps->ppid))
parent = parent->next_ps;
- if ((!parent) || (parent->pid != ps->ppid)) {
+ if (parent->pid != ps->ppid) {
/* orphan */
ps->ppid = 1;
parent = ps_first->next_ps;
* iteration */
/* rt, wt */
- if (!ps->schedstat) {
+ if (ps->schedstat < 0) {
sprintf(filename, "%d/schedstat", pid);
ps->schedstat = openat(procfd, filename, O_RDONLY);
if (ps->schedstat == -1)
if (s <= 0) {
/* clean up our file descriptors - assume that the process exited */
close(ps->schedstat);
- if (ps->sched)
+ ps->schedstat = -1;
+ if (ps->sched) {
close(ps->sched);
+ ps->sched = -1;
+ }
//if (ps->smaps)
// fclose(ps->smaps);
continue;
if (!sscanf(buf, "%s %s %*s", rt, wt))
continue;
- ps->sample->next = calloc(1, sizeof(struct ps_sched_struct));
- if (!ps->sample) {
- perror("calloc(ps_struct)");
- exit (EXIT_FAILURE);
+ ps->sample->next = new0(struct ps_sched_struct, 1);
+ if (!ps->sample->next) {
+ log_oom();
+ exit(EXIT_FAILURE);
}
ps->sample->next->prev = ps->sample;
ps->sample = ps->sample->next;
if (!ps->smaps) {
sprintf(filename, "%d/smaps", pid);
fd = openat(procfd, filename, O_RDONLY);
+ if (fd == -1)
+ continue;
ps->smaps = fdopen(fd, "r");
- if (!ps->smaps)
+ if (!ps->smaps) {
+ close(fd);
continue;
+ }
setvbuf(ps->smaps, smaps_buf, _IOFBF, sizeof(smaps_buf));
}
else {
if (s <= 0) {
/* clean up file descriptors */
close(ps->sched);
- if (ps->schedstat)
+ ps->sched = -1;
+ if (ps->schedstat) {
close(ps->schedstat);
+ ps->schedstat = -1;
+ }
//if (ps->smaps)
// fclose(ps->smaps);
continue;
~ianmdlvl / elogind.git / blobdiff