AMS: add API to IProcessInfoServive for retrieving oom scores
bug: 25853091
Change-Id: Ic915191b959afd34d31e8731a7e4aa631a78e45e
diff --git a/core/java/android/os/IProcessInfoService.aidl b/core/java/android/os/IProcessInfoService.aidl
index c98daa2..62237f5 100644
--- a/core/java/android/os/IProcessInfoService.aidl
+++ b/core/java/android/os/IProcessInfoService.aidl
@@ -25,5 +25,12 @@
* to indicate that no process with the given PID exists.
*/
void getProcessStatesFromPids(in int[] pids, out int[] states);
+
+ /**
+ * For each PID in the given input array, write the current process state and OOM score
+ * for that process into the output arrays, or ActivityManager.PROCESS_STATE_NONEXISTENT
+ * in the states array to indicate that no process with the given PID exists.
+ */
+ void getProcessStatesAndOomScoresFromPids(in int[] pids, out int[] states, out int[] scores);
}
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 557b386..d9580c5 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -7148,22 +7148,35 @@
@Override
public void getProcessStatesFromPids(/*in*/ int[] pids, /*out*/ int[] states) {
- mActivityManagerService.getProcessStatesForPIDs(/*in*/ pids, /*out*/ states);
+ mActivityManagerService.getProcessStatesAndOomScoresForPIDs(
+ /*in*/ pids, /*out*/ states, null);
+ }
+
+ @Override
+ public void getProcessStatesAndOomScoresFromPids(
+ /*in*/ int[] pids, /*out*/ int[] states, /*out*/ int[] scores) {
+ mActivityManagerService.getProcessStatesAndOomScoresForPIDs(
+ /*in*/ pids, /*out*/ states, /*out*/ scores);
}
}
/**
* For each PID in the given input array, write the current process state
- * for that process into the output array, or -1 to indicate that no
- * process with the given PID exists.
+ * for that process into the states array, or -1 to indicate that no
+ * process with the given PID exists. If scores array is provided, write
+ * the oom score for the process into the scores array, with INVALID_ADJ
+ * indicating the PID doesn't exist.
*/
- public void getProcessStatesForPIDs(/*in*/ int[] pids, /*out*/ int[] states) {
+ public void getProcessStatesAndOomScoresForPIDs(
+ /*in*/ int[] pids, /*out*/ int[] states, /*out*/ int[] scores) {
if (pids == null) {
throw new NullPointerException("pids");
} else if (states == null) {
throw new NullPointerException("states");
} else if (pids.length != states.length) {
- throw new IllegalArgumentException("input and output arrays have different lengths!");
+ throw new IllegalArgumentException("pids and states arrays have different lengths!");
+ } else if (scores != null && pids.length != scores.length) {
+ throw new IllegalArgumentException("pids and scores arrays have different lengths!");
}
synchronized (mPidsSelfLocked) {
@@ -7171,6 +7184,9 @@
ProcessRecord pr = mPidsSelfLocked.get(pids[i]);
states[i] = (pr == null) ? ActivityManager.PROCESS_STATE_NONEXISTENT :
pr.curProcState;
+ if (scores != null) {
+ scores[i] = (pr == null) ? ProcessList.INVALID_ADJ : pr.curAdj;
+ }
}
}
}