am bbfc08b3: Merge changes I6d4fdada,Ia34899a4

* commit 'bbfc08b3abc0934f67659f3238eb79dcac838c17':
  open("/dev/rtc0") failure in AlarmManagerService.setTime() should be non-fatal
  Move time setting code from SystemClock to AlarmManagerService

core/java/android/app/IAlarmManager.aidl

@@ -28,7 +28,7 @@ interface IAlarmManager {
 	/** windowLength == 0 means exact; windowLength < 0 means the let the OS decide */
     void set(int type, long triggerAtTime, long windowLength,
             long interval, in PendingIntent operation, in WorkSource workSource);
-    void setTime(long millis);
+    boolean setTime(long millis);
     void setTimeZone(String zone);
     void remove(in PendingIntent operation);
 }

core/java/android/os/SystemClock.java

@@ -16,6 +16,9 @@
 
 package android.os;
 
+import android.app.IAlarmManager;
+import android.content.Context;
+import android.util.Slog;
 
 /**
  * Core timekeeping facilities.
@@ -89,6 +92,8 @@ package android.os;
  * </ul>
  */
 public final class SystemClock {
+    private static final String TAG = "SystemClock";
+
     /**
      * This class is uninstantiable.
      */
@@ -134,7 +139,23 @@ public final class SystemClock {
      *
      * @return if the clock was successfully set to the specified time.
      */
-    native public static boolean setCurrentTimeMillis(long millis);
+    public static boolean setCurrentTimeMillis(long millis) {
+        IBinder b = ServiceManager.getService(Context.ALARM_SERVICE);
+        IAlarmManager mgr = IAlarmManager.Stub.asInterface(b);
+        if (mgr == null) {
+            return false;
+        }
+
+        try {
+            return mgr.setTime(millis);
+        } catch (RemoteException e) {
+            Slog.e(TAG, "Unable to set RTC", e);
+        } catch (SecurityException e) {
+            Slog.e(TAG, "Unable to set RTC", e);
+        }
+
+        return false;
+    }
 
     /**
      * Returns milliseconds since boot, not counting time spent in deep sleep.

core/jni/android_os_SystemClock.cpp

@@ -19,13 +19,6 @@
  * System clock functions.
  */
 
-#ifdef HAVE_ANDROID_OS
-#include <linux/ioctl.h>
-#include <linux/rtc.h>
-#include <utils/Atomic.h>
-#include <linux/android_alarm.h>
-#endif
-
 #include <sys/time.h>
 #include <limits.h>
 #include <fcntl.h>
@@ -43,109 +36,6 @@
 
 namespace android {
 
-static int setCurrentTimeMillisAlarmDriver(struct timeval *tv)
-{
-    struct timespec ts;
-    int fd;
-    int res;
-
-    fd = open("/dev/alarm", O_RDWR);
-    if(fd < 0) {
-        ALOGV("Unable to open alarm driver: %s\n", strerror(errno));
-        return -1;
-    }
-    ts.tv_sec = tv->tv_sec;
-    ts.tv_nsec = tv->tv_usec * 1000;
-    res = ioctl(fd, ANDROID_ALARM_SET_RTC, &ts);
-    if (res < 0)
-        ALOGV("ANDROID_ALARM_SET_RTC ioctl failed: %s\n", strerror(errno));
-    close(fd);
-    return res;
-}
-
-static int setCurrentTimeMillisRtc(struct timeval *tv)
-{
-    struct rtc_time rtc;
-    struct tm tm, *gmtime_res;
-    int fd;
-    int res;
-
-    fd = open("/dev/rtc0", O_RDWR);
-    if (fd < 0) {
-        ALOGV("Unable to open RTC driver: %s\n", strerror(errno));
-        return -1;
-    }
-
-    res = settimeofday(tv, NULL);
-    if (res < 0) {
-        ALOGV("settimeofday() failed: %s\n", strerror(errno));
-        goto done;
-    }
-
-    gmtime_res = gmtime_r(&tv->tv_sec, &tm);
-    if (!gmtime_res) {
-        ALOGV("gmtime_r() failed: %s\n", strerror(errno));
-        res = -1;
-        goto done;
-    }
-
-    memset(&rtc, 0, sizeof(rtc));
-    rtc.tm_sec = tm.tm_sec;
-    rtc.tm_min = tm.tm_min;
-    rtc.tm_hour = tm.tm_hour;
-    rtc.tm_mday = tm.tm_mday;
-    rtc.tm_mon = tm.tm_mon;
-    rtc.tm_year = tm.tm_year;
-    rtc.tm_wday = tm.tm_wday;
-    rtc.tm_yday = tm.tm_yday;
-    rtc.tm_isdst = tm.tm_isdst;
-    res = ioctl(fd, RTC_SET_TIME, &rtc);
-    if (res < 0)
-        ALOGV("RTC_SET_TIME ioctl failed: %s\n", strerror(errno));
-done:
-    close(fd);
-    return res;
-}
-
-/*
- * Set the current time.  This only works when running as root.
- */
-static int setCurrentTimeMillis(int64_t millis)
-{
-    struct timeval tv;
-    int ret;
-
-    if (millis <= 0 || millis / 1000LL >= INT_MAX) {
-        return -1;
-    }
-
-    tv.tv_sec = (time_t) (millis / 1000LL);
-    tv.tv_usec = (suseconds_t) ((millis % 1000LL) * 1000LL);
-
-    ALOGD("Setting time of day to sec=%d\n", (int) tv.tv_sec);
-
-    ret = setCurrentTimeMillisAlarmDriver(&tv);
-    if (ret < 0)
-        ret = setCurrentTimeMillisRtc(&tv);
-
-    if(ret < 0) {
-        ALOGW("Unable to set rtc to %ld: %s\n", tv.tv_sec, strerror(errno));
-        ret = -1;
-    }
-    return ret;
-}
-
-/*
- * native public static void setCurrentTimeMillis(long millis)
- *
- * Set the current time.  This only works when running as root.
- */
-static jboolean android_os_SystemClock_setCurrentTimeMillis(JNIEnv* env,
-    jobject clazz, jlong millis)
-{
-    return (setCurrentTimeMillis(millis) == 0);
-}
-
 /*
  * native public static long uptimeMillis();
  */
@@ -230,8 +120,6 @@ static jlong android_os_SystemClock_elapsedRealtimeNano(JNIEnv* env,
  */
 static JNINativeMethod gMethods[] = {
     /* name, signature, funcPtr */
-    { "setCurrentTimeMillis",      "(J)Z",
-            (void*) android_os_SystemClock_setCurrentTimeMillis },
     { "uptimeMillis",      "()J",
             (void*) android_os_SystemClock_uptimeMillis },
     { "elapsedRealtime",      "()J",

services/java/com/android/server/AlarmManagerService.java

@@ -669,12 +669,19 @@ class AlarmManagerService extends IAlarmManager.Stub {
         }
     }
 
-    public void setTime(long millis) {
+    public boolean setTime(long millis) {
         mContext.enforceCallingOrSelfPermission(
                 "android.permission.SET_TIME",
                 "setTime");
 
-        SystemClock.setCurrentTimeMillis(millis);
+        if (mNativeData == 0) {
+            Slog.w(TAG, "Not setting time since no alarm driver is available.");
+            return false;
+        }
+
+        synchronized (mLock) {
+            return setKernelTime(mNativeData, millis) == 0;
+        }
     }
 
     public void setTimeZone(String tz) {
@@ -1018,6 +1025,7 @@ class AlarmManagerService extends IAlarmManager.Stub {
     private native void close(long nativeData);
     private native void set(long nativeData, int type, long seconds, long nanoseconds);
     private native int waitForAlarm(long nativeData);
+    private native int setKernelTime(long nativeData, long millis);
     private native int setKernelTimezone(long nativeData, int minuteswest);
 
     private void triggerAlarmsLocked(ArrayList<Alarm> triggerList, long nowELAPSED, long nowRTC) {

services/jni/com_android_server_AlarmManagerService.cpp

@@ -36,6 +36,7 @@
 #include <unistd.h>
 #include <linux/ioctl.h>
 #include <linux/android_alarm.h>
+#include <linux/rtc.h>
 
 namespace android {
 
@@ -58,6 +59,7 @@ public:
     virtual ~AlarmImpl();
 
     virtual int set(int type, struct timespec *ts) = 0;
+    virtual int setTime(struct timeval *tv) = 0;
     virtual int waitForAlarm() = 0;
 
 protected:
@@ -71,6 +73,7 @@ public:
     AlarmImplAlarmDriver(int fd) : AlarmImpl(&fd, 1) { }
 
     int set(int type, struct timespec *ts);
+    int setTime(struct timeval *tv);
     int waitForAlarm();
 };
 
@@ -82,6 +85,7 @@ public:
     ~AlarmImplTimerFd();
 
     int set(int type, struct timespec *ts);
+    int setTime(struct timeval *tv);
     int waitForAlarm();
 
 private:
@@ -107,6 +111,19 @@ int AlarmImplAlarmDriver::set(int type, struct timespec *ts)
     return ioctl(fds[0], ANDROID_ALARM_SET(type), ts);
 }
 
+int AlarmImplAlarmDriver::setTime(struct timeval *tv)
+{
+    struct timespec ts;
+    int res;
+
+    ts.tv_sec = tv->tv_sec;
+    ts.tv_nsec = tv->tv_usec * 1000;
+    res = ioctl(fds[0], ANDROID_ALARM_SET_RTC, &ts);
+    if (res < 0)
+        ALOGV("ANDROID_ALARM_SET_RTC ioctl failed: %s\n", strerror(errno));
+    return res;
+}
+
 int AlarmImplAlarmDriver::waitForAlarm()
 {
     return ioctl(fds[0], ANDROID_ALARM_WAIT);
@@ -140,6 +157,50 @@ int AlarmImplTimerFd::set(int type, struct timespec *ts)
     return timerfd_settime(fds[type], TFD_TIMER_ABSTIME, &spec, NULL);
 }
 
+int AlarmImplTimerFd::setTime(struct timeval *tv)
+{
+    struct rtc_time rtc;
+    struct tm tm, *gmtime_res;
+    int fd;
+    int res;
+
+    res = settimeofday(tv, NULL);
+    if (res < 0) {
+        ALOGV("settimeofday() failed: %s\n", strerror(errno));
+        return -1;
+    }
+
+    fd = open("/dev/rtc0", O_RDWR);
+    if (fd < 0) {
+        ALOGV("Unable to open RTC driver: %s\n", strerror(errno));
+        return res;
+    }
+
+    gmtime_res = gmtime_r(&tv->tv_sec, &tm);
+    if (!gmtime_res) {
+        ALOGV("gmtime_r() failed: %s\n", strerror(errno));
+        res = -1;
+        goto done;
+    }
+
+    memset(&rtc, 0, sizeof(rtc));
+    rtc.tm_sec = tm.tm_sec;
+    rtc.tm_min = tm.tm_min;
+    rtc.tm_hour = tm.tm_hour;
+    rtc.tm_mday = tm.tm_mday;
+    rtc.tm_mon = tm.tm_mon;
+    rtc.tm_year = tm.tm_year;
+    rtc.tm_wday = tm.tm_wday;
+    rtc.tm_yday = tm.tm_yday;
+    rtc.tm_isdst = tm.tm_isdst;
+    res = ioctl(fd, RTC_SET_TIME, &rtc);
+    if (res < 0)
+        ALOGV("RTC_SET_TIME ioctl failed: %s\n", strerror(errno));
+done:
+    close(fd);
+    return res;
+}
+
 int AlarmImplTimerFd::waitForAlarm()
 {
     epoll_event events[N_ANDROID_TIMERFDS];
@@ -168,6 +229,30 @@ int AlarmImplTimerFd::waitForAlarm()
     return result;
 }
 
+static jint android_server_AlarmManagerService_setKernelTime(JNIEnv*, jobject, jlong nativeData, jlong millis)
+{
+    AlarmImpl *impl = reinterpret_cast<AlarmImpl *>(nativeData);
+    struct timeval tv;
+    int ret;
+
+    if (millis <= 0 || millis / 1000LL >= INT_MAX) {
+        return -1;
+    }
+
+    tv.tv_sec = (time_t) (millis / 1000LL);
+    tv.tv_usec = (suseconds_t) ((millis % 1000LL) * 1000LL);
+
+    ALOGD("Setting time of day to sec=%d\n", (int) tv.tv_sec);
+
+    ret = impl->setTime(&tv);
+
+    if(ret < 0) {
+        ALOGW("Unable to set rtc to %ld: %s\n", tv.tv_sec, strerror(errno));
+        ret = -1;
+    }
+    return ret;
+}
+
 static jint android_server_AlarmManagerService_setKernelTimezone(JNIEnv*, jobject, jlong, jint minswest)
 {
     struct timezone tz;
@@ -309,6 +394,7 @@ static JNINativeMethod sMethods[] = {
     {"close", "(J)V", (void*)android_server_AlarmManagerService_close},
     {"set", "(JIJJ)V", (void*)android_server_AlarmManagerService_set},
     {"waitForAlarm", "(J)I", (void*)android_server_AlarmManagerService_waitForAlarm},
+    {"setKernelTime", "(JJ)I", (void*)android_server_AlarmManagerService_setKernelTime},
     {"setKernelTimezone", "(JI)I", (void*)android_server_AlarmManagerService_setKernelTimezone},
 };