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Diffstat (limited to 'src/notify.c')
-rw-r--r--src/notify.c42
1 files changed, 29 insertions, 13 deletions
diff --git a/src/notify.c b/src/notify.c
index 28cfe23b23..61c4b0f92f 100644
--- a/src/notify.c
+++ b/src/notify.c
@@ -36,16 +36,18 @@ 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"
+ " --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;
@@ -57,16 +59,18 @@ static int parse_argv(int argc, char *argv[]) {
ARG_READY = 0x100,
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' },
+ { "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;
@@ -106,6 +110,10 @@ static int parse_argv(int argc, char *argv[]) {
arg_booted = true;
break;
+ case ARG_READAHEAD:
+ arg_readahead = optarg;
+ break;
+
case '?':
return -EINVAL;
@@ -119,7 +127,8 @@ static int parse_argv(int argc, char *argv[]) {
!arg_ready &&
!arg_status &&
!arg_pid &&
- !arg_booted) {
+ !arg_booted &&
+ !arg_readahead) {
help();
return -EINVAL;
}
@@ -144,6 +153,13 @@ int main(int argc, char* argv[]) {
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";