팬 정책 데몬 전환과 관측 로그 정리

apply_policy.php

@@ -3,6 +3,8 @@ declare(strict_types=1);
 
 require_once __DIR__ . '/config/config.php';
 
+const FAN_POLICY_INTERVAL_SECONDS = 1.0;
+
 function local_fan_paths(): array
 {
     $candidates = glob('/sys/devices/platform/cooling_fan/hwmon/hwmon*/pwm1') ?: [];
@@ -169,7 +171,8 @@ function dmesg_log_throttled(string $key, string $message, int $seconds = 30): v
     dmesg_log($message);
 }
 
-try {
+function run_fan_policy_once(): bool
+{
     sync_presence_fan_policy();
 
     $state = get_control_state();
@@ -200,15 +203,12 @@ try {
     usleep(80000);
 
     $actualPwm = read_int_file($paths['pwm']);
-
     $rpm = read_int_file($paths['rpm']);
-
     $load = sys_getloadavg() ?: [0, 0, 0];
     $mem = local_mem();
     $disk = local_disk('/');
     $cpuPower = cpu_power_status();
     $battery = battery_status();
-
     $ok = $enableOk && $pwmOk;
 
     add_sensor_log([
@@ -254,8 +254,11 @@ try {
         );
     }
 
-    exit($ok ? 0 : 1);
-} catch (Throwable $e) {
+    return $ok;
+}
+
+function report_fan_policy_exception(Throwable $e): void
+{
     try {
         add_fan_action(
             'apply_policy_exception',
@@ -268,5 +271,34 @@ try {
     }
 
     fwrite(STDERR, $e->getMessage() . PHP_EOL);
+}
+
+function run_fan_policy_daemon(): int
+{
+    while (true) {
+        $started = microtime(true);
+
+        try {
+            run_fan_policy_once();
+        } catch (Throwable $e) {
+            report_fan_policy_exception($e);
+        }
+
+        $elapsed = microtime(true) - $started;
+        $sleep = max(0.05, FAN_POLICY_INTERVAL_SECONDS - $elapsed);
+        usleep((int)round($sleep * 1000000));
+    }
+}
+
+$daemon = in_array('--daemon', $argv ?? [], true);
+
+if ($daemon) {
+    exit(run_fan_policy_daemon());
+}
+
+try {
+    exit(run_fan_policy_once() ? 0 : 1);
+} catch (Throwable $e) {
+    report_fan_policy_exception($e);
     exit(1);
 }