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main: split out 'skip_setup' check into its own functions

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And let's optimize it a tiny bit, by only iterating through the argument
list once, instead of twice.
This commit is contained in:
Lennart Poettering 2017-12-15 18:53:03 +01:00
parent b9e90f3aa6
commit aa40ff0703
1 changed files with 21 additions and 11 deletions
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32
src/core/main.c
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@ -2270,6 +2270,25 @@ static void setup_console_terminal(bool skip_setup) {
(void) console_setup();
}
static bool early_skip_setup_check(int argc, char *argv[]) {
bool found_deserialize = false;
int i;
/* Determine if this is a reexecution or normal bootup. We do the full command line parsing much later, so
* let's just have a quick peek here. Note that if we have switched root, do all the special setup things
* anyway, even if in that case we also do deserialization. */
for (i = 1; i < argc; i++) {
if (streq(argv[i], "--switched-root"))
return false; /* If we switched root, don't skip the setup. */
else if (streq(argv[i], "--deserialize"))
found_deserialize = true;
}
return found_deserialize; /* When we are deserializing, then we are reexecuting, hence avoid the extensive setup */
}
int main(int argc, char *argv[]) {
Manager *m = NULL;
int r, retval = EXIT_FAILURE;
@ -2284,7 +2303,7 @@ int main(int argc, char *argv[]) {
dual_timestamp security_start_timestamp = DUAL_TIMESTAMP_NULL;
dual_timestamp security_finish_timestamp = DUAL_TIMESTAMP_NULL;
static char systemd[] = "systemd";
bool skip_setup = false;
bool skip_setup;
bool loaded_policy = false;
bool queue_default_job = false;
bool first_boot = false;
@ -2297,16 +2316,7 @@ int main(int argc, char *argv[]) {
dual_timestamp_from_monotonic(&kernel_timestamp, 0);
dual_timestamp_get(&userspace_timestamp);
/* Determine if this is a reexecution or normal bootup. We do
* the full command line parsing much later, so let's just
* have a quick peek here. */
if (strv_find(argv+1, "--deserialize"))
skip_setup = true;
/* If we have switched root, do all the special setup
* things */
if (strv_find(argv+1, "--switched-root"))
skip_setup = false;
skip_setup = early_skip_setup_check(argc, argv);
/* If we get started via the /sbin/init symlink then we are
called 'init'. After a subsequent reexecution we are then