static int show_timesync_status_once(sd_bus *bus) {
static const struct bus_properties_map map_timesync[] = {
{ "ServerName", "s", NULL, offsetof(NTPStatusInfo, server_name) },
{ "ServerAddress", "(iay)", map_server_address, offsetof(NTPStatusInfo, server_address) },
{ "PollIntervalUSec", "t", NULL, offsetof(NTPStatusInfo, poll_interval) },
{ "PollIntervalMinUSec", "t", NULL, offsetof(NTPStatusInfo, poll_min) },
{ "PollIntervalMaxUSec", "t", NULL, offsetof(NTPStatusInfo, poll_max) },
{ "RootDistanceMaxUSec", "t", NULL, offsetof(NTPStatusInfo, root_distance_max) },
{ "NTPMessage", "(uuuuittayttttbtt)", map_ntp_message, 0 },
{ "Frequency", "x", NULL, offsetof(NTPStatusInfo, freq) },
{}
};
_cleanup_(ntp_status_info_clear) NTPStatusInfo info = {};
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
int r;
assert(bus);
r = bus_map_all_properties(bus,
"org.freedesktop.timesync1",
"/org/freedesktop/timesync1",
map_timesync,
BUS_MAP_BOOLEAN_AS_BOOL,
&error,
&m,
&info);
if (r < 0)
return log_error_errno(r, "Failed to query server: %s", bus_error_message(&error, r));
if (arg_monitor && !terminal_is_dumb())
fputs(ANSI_HOME_CLEAR, stdout);
print_ntp_status_info(&info);
return 0;
}
static void display(Hashmap *a) {
Iterator i;
Group *g;
Group **array;
signed path_columns;
unsigned rows, n = 0, j, maxtcpu = 0, maxtpath = 3; /* 3 for ellipsize() to work properly */
char buffer[MAX3(21, FORMAT_BYTES_MAX, FORMAT_TIMESPAN_MAX)];
assert(a);
if (!terminal_is_dumb())
fputs(ANSI_HOME_CLEAR, stdout);
array = alloca(sizeof(Group*) * hashmap_size(a));
HASHMAP_FOREACH(g, a, i)
if (g->n_tasks_valid || g->cpu_valid || g->memory_valid || g->io_valid)
array[n++] = g;
qsort_safe(array, n, sizeof(Group*), group_compare);
/* Find the longest names in one run */
for (j = 0; j < n; j++) {
unsigned cputlen, pathtlen;
format_timespan(buffer, sizeof(buffer), (usec_t) (array[j]->cpu_usage / NSEC_PER_USEC), 0);
cputlen = strlen(buffer);
maxtcpu = MAX(maxtcpu, cputlen);
pathtlen = strlen(array[j]->path);
maxtpath = MAX(maxtpath, pathtlen);
}
if (arg_cpu_type == CPU_PERCENT)
xsprintf(buffer, "%6s", "%CPU");
else
xsprintf(buffer, "%*s", maxtcpu, "CPU Time");
rows = lines();
if (rows <= 10)
rows = 10;
if (on_tty()) {
const char *on, *off;
path_columns = columns() - 36 - strlen(buffer);
if (path_columns < 10)
path_columns = 10;
on = ansi_highlight_underline();
off = ansi_underline();
printf("%s%s%-*s%s %s%7s%s %s%s%s %s%8s%s %s%8s%s %s%8s%s%s\n",
ansi_underline(),
arg_order == ORDER_PATH ? on : "", path_columns, "Control Group",
arg_order == ORDER_PATH ? off : "",
arg_order == ORDER_TASKS ? on : "", arg_count == COUNT_PIDS ? "Tasks" : arg_count == COUNT_USERSPACE_PROCESSES ? "Procs" : "Proc+",
arg_order == ORDER_TASKS ? off : "",
arg_order == ORDER_CPU ? on : "", buffer,
arg_order == ORDER_CPU ? off : "",
arg_order == ORDER_MEMORY ? on : "", "Memory",
arg_order == ORDER_MEMORY ? off : "",
arg_order == ORDER_IO ? on : "", "Input/s",
arg_order == ORDER_IO ? off : "",
arg_order == ORDER_IO ? on : "", "Output/s",
arg_order == ORDER_IO ? off : "",
ansi_normal());
} else
path_columns = maxtpath;
for (j = 0; j < n; j++) {
_cleanup_free_ char *ellipsized = NULL;
const char *path;
if (on_tty() && j + 6 > rows)
break;
g = array[j];
path = isempty(g->path) ? "/" : g->path;
ellipsized = ellipsize(path, path_columns, 33);
printf("%-*s", path_columns, ellipsized ?: path);
if (g->n_tasks_valid)
printf(" %7" PRIu64, g->n_tasks);
else
fputs(" -", stdout);
if (arg_cpu_type == CPU_PERCENT) {
if (g->cpu_valid)
printf(" %6.1f", g->cpu_fraction*100);
else
fputs(" -", stdout);
} else
printf(" %*s", maxtcpu, format_timespan(buffer, sizeof(buffer), (usec_t) (g->cpu_usage / NSEC_PER_USEC), 0));
printf(" %8s", maybe_format_bytes(buffer, sizeof(buffer), g->memory_valid, g->memory));
printf(" %8s", maybe_format_bytes(buffer, sizeof(buffer), g->io_valid, g->io_input_bps));
printf(" %8s", maybe_format_bytes(buffer, sizeof(buffer), g->io_valid, g->io_output_bps));
putchar('\n');
}
}
int pager_open(bool no_pager, bool jump_to_end) {
_cleanup_close_pair_ int fd[2] = { -1, -1 };
const char *pager;
pid_t parent_pid;
if (no_pager)
return 0;
if (pager_pid > 0)
return 1;
if (terminal_is_dumb())
return 0;
pager = getenv("SYSTEMD_PAGER");
if (!pager)
pager = getenv("PAGER");
/* If the pager is explicitly turned off, honour it */
if (pager && STR_IN_SET(pager, "", "cat"))
return 0;
/* Determine and cache number of columns before we spawn the
* pager so that we get the value from the actual tty */
(void) columns();
if (pipe(fd) < 0)
return log_error_errno(errno, "Failed to create pager pipe: %m");
parent_pid = getpid();
pager_pid = fork();
if (pager_pid < 0)
return log_error_errno(errno, "Failed to fork pager: %m");
/* In the child start the pager */
if (pager_pid == 0) {
const char* less_opts, *less_charset;
(void) reset_all_signal_handlers();
(void) reset_signal_mask();
(void) dup2(fd[0], STDIN_FILENO);
safe_close_pair(fd);
/* Initialize a good set of less options */
less_opts = getenv("SYSTEMD_LESS");
if (!less_opts)
less_opts = "FRSXMK";
if (jump_to_end)
less_opts = strjoina(less_opts, " +G");
setenv("LESS", less_opts, 1);
/* Initialize a good charset for less. This is
* particularly important if we output UTF-8
* characters. */
less_charset = getenv("SYSTEMD_LESSCHARSET");
if (!less_charset && is_locale_utf8())
less_charset = "utf-8";
if (less_charset)
setenv("LESSCHARSET", less_charset, 1);
/* Make sure the pager goes away when the parent dies */
if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0)
_exit(EXIT_FAILURE);
/* Check whether our parent died before we were able
* to set the death signal */
if (getppid() != parent_pid)
_exit(EXIT_SUCCESS);
if (pager) {
execlp(pager, pager, NULL);
execl("/bin/sh", "sh", "-c", pager, NULL);
}
/* Debian's alternatives command for pagers is
* called 'pager'. Note that we do not call
* sensible-pagers here, since that is just a
* shell script that implements a logic that
* is similar to this one anyway, but is
* Debian-specific. */
execlp("pager", "pager", NULL);
execlp("less", "less", NULL);
execlp("more", "more", NULL);
pager_fallback();
/* not reached */
}
/* Return in the parent */
if (dup2(fd[1], STDOUT_FILENO) < 0)
return log_error_errno(errno, "Failed to duplicate pager pipe: %m");
if (dup2(fd[1], STDERR_FILENO) < 0)
return log_error_errno(errno, "Failed to duplicate pager pipe: %m");
return 1;
}
