ProcessInfoService: Add support for oom score query

An additional query for the process oom score also
needs to be supported.

BUG: 34701266
Test: Manual testing + run cts -m Camera --abi armeabi-v7a --disable-reboot
Change-Id: I3e7de82c4d14d4b3b7faa86f4c7208deb376b6c4

1 files changed, 17 insertions, 0 deletions

diff --git a/include/binder/ProcessInfoService.h b/include/binder/ProcessInfoService.h
index c5ead20676..0da61ee3cb 100644
--- a/include/binder/ProcessInfoService.h
+++ b/include/binder/ProcessInfoService.h
@@ -35,6 +35,8 @@ class ProcessInfoService : public Singleton<ProcessInfoService> {
     ProcessInfoService();
 
     status_t getProcessStatesImpl(size_t length, /*in*/ int32_t* pids, /*out*/ int32_t* states);
+    status_t getProcessStatesScoresImpl(size_t length, /*in*/ int32_t* pids,
+            /*out*/ int32_t* states, /*out*/ int32_t *scores);
     void updateBinderLocked();
 
     static const int BINDER_ATTEMPT_LIMIT = 5;
@@ -55,6 +57,21 @@ public:
                 /*out*/ states);
     }
 
+    /**
+     * For each PID in the given "pids" input array, write the current process state
+     * for that process into the "states" output array, or
+     * ActivityManager.PROCESS_STATE_NONEXISTENT * to indicate that no process with the given PID
+     * exists. OoM scores will also be written in the "scores" output array.
+     * Please also note that clients calling this method need to have
+     * "GET_PROCESS_STATE_AND_OOM_SCORE" permission.
+     *
+     * Returns NO_ERROR if this operation was successful, or a negative error code otherwise.
+     */
+    static status_t getProcessStatesScoresFromPids(size_t length, /*in*/ int32_t* pids,
+            /*out*/ int32_t* states, /*out*/ int32_t *scores) {
+        return ProcessInfoService::getInstance().getProcessStatesScoresImpl(
+                length, /*in*/ pids, /*out*/ states, /*out*/ scores);
+    }
 };
 
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