Copyright 2010 Lennart Poettering
systemd 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; either version 2 of the License, or
+ 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
- General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdlib.h>
#include <string.h>
+#include <systemd/sd-daemon.h>
+
#include "strv.h"
#include "util.h"
#include "log.h"
-#include "sd-daemon.h"
+#include "sd-readahead.h"
+#include "build.h"
static bool arg_ready = false;
static pid_t arg_pid = 0;
static const char *arg_status = NULL;
static bool arg_booted = false;
+static const char *arg_readahead = NULL;
static int help(void) {
printf("%s [OPTIONS...] [VARIABLE=VALUE...]\n\n"
"Notify the init system about service status updates.\n\n"
- " -h --help Show this help\n"
- " --ready Inform the init system about service start-up completion\n"
- " --pid[=PID] Set main pid of daemon\n"
- " --status=TEXT Set status text\n"
- " --booted Returns 0 if the system was booted up with systemd, non-zero otherwise\n",
+ " -h --help Show this help\n"
+ " --version Show package version\n"
+ " --ready Inform the init system about service start-up completion\n"
+ " --pid[=PID] Set main pid of daemon\n"
+ " --status=TEXT Set status text\n"
+ " --booted Returns 0 if the system was booted up with systemd, non-zero otherwise\n"
+ " --readahead=ACTION Controls read-ahead operations\n",
program_invocation_short_name);
return 0;
enum {
ARG_READY = 0x100,
+ ARG_VERSION,
ARG_PID,
ARG_STATUS,
- ARG_BOOTED
+ ARG_BOOTED,
+ ARG_READAHEAD
};
static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "ready", no_argument, NULL, ARG_READY },
- { "pid", optional_argument, NULL, ARG_PID },
- { "status", required_argument, NULL, ARG_STATUS },
- { "booted", no_argument, NULL, ARG_BOOTED },
- { NULL, 0, NULL, 0 }
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "ready", no_argument, NULL, ARG_READY },
+ { "pid", optional_argument, NULL, ARG_PID },
+ { "status", required_argument, NULL, ARG_STATUS },
+ { "booted", no_argument, NULL, ARG_BOOTED },
+ { "readahead", required_argument, NULL, ARG_READAHEAD },
+ { NULL, 0, NULL, 0 }
};
int c;
help();
return 0;
+ case ARG_VERSION:
+ puts(PACKAGE_STRING);
+ puts(DISTRIBUTION);
+ puts(SYSTEMD_FEATURES);
+ return 0;
+
case ARG_READY:
arg_ready = true;
break;
arg_booted = true;
break;
+ case ARG_READAHEAD:
+ arg_readahead = optarg;
+ break;
+
case '?':
return -EINVAL;
!arg_ready &&
!arg_status &&
!arg_pid &&
- !arg_booted) {
+ !arg_booted &&
+ !arg_readahead) {
help();
return -EINVAL;
}
if (arg_booted)
return sd_booted() <= 0;
+ if (arg_readahead) {
+ if ((r = sd_readahead(arg_readahead)) < 0) {
+ log_error("Failed to issue read-ahead control command: %s", strerror(-r));
+ goto finish;
+ }
+ }
+
if (arg_ready)
our_env[i++] = (char*) "READY=1";