时序图:
wifi初始化.png
1. 系统启动wifiServer
系统服务都是开机启动,不去说init什么等c的孵化器流程,直接进入run说起
@frameworks/base/services/java/com/android/server/SystemServer.java
private static final String WIFI_SERVICE_CLASS =
"com.android.server.wifi.WifiService";
public static void main(String[] args) {
new SystemServer().run();
}
private void run() {
...
startOtherServices();
...
}
private void startOtherServices() {
...
if (!mOnlyCore) {
if (context.getPackageManager().hasSystemFeature(
PackageManager.FEATURE_WIFI)) {
// Wifi Service must be started first for wifi-related services.
traceBeginAndSlog("StartWifi");
mSystemServiceManager.startService(WIFI_SERVICE_CLASS);
traceEnd();
traceBeginAndSlog("StartWifiScanning");
mSystemServiceManager.startService(
"com.android.server.wifi.scanner.WifiScanningService");
traceEnd();
}
...
}
@frameworks/base/services/core/java/com/android/server/SystemServiceManager.java
public SystemService startService(String className) {
final Class serviceClass;
try {
serviceClass = (Class)Class.forName(className);
} catch (ClassNotFoundException ex) {
Slog.i(TAG, "Starting " + className);
throw new RuntimeException("Failed to create service " + className
+ ": service class not found, usually indicates that the caller should "
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