Activity manager: native callback for process state
Make getUidProcessState() callback in IActivityManager.aidl
available to native processes.
Test: Manual test with audio recording apps pushed to background and back
to top.
Bug: 111438757
Change-Id: I16d001dcaeb3e9a38743aa7b301445c94fe5dc99
diff --git a/libs/binder/ActivityManager.cpp b/libs/binder/ActivityManager.cpp
index 28d0e4f..49a9414 100644
--- a/libs/binder/ActivityManager.cpp
+++ b/libs/binder/ActivityManager.cpp
@@ -89,6 +89,15 @@
return false;
}
+int32_t ActivityManager::getUidProcessState(const uid_t uid, const String16& callingPackage)
+{
+ sp<IActivityManager> service = getService();
+ if (service != nullptr) {
+ return service->getUidProcessState(uid, callingPackage);
+ }
+ return PROCESS_STATE_UNKNOWN;
+}
+
status_t ActivityManager::linkToDeath(const sp<IBinder::DeathRecipient>& recipient) {
sp<IActivityManager> service = getService();
if (service != nullptr) {
diff --git a/libs/binder/IActivityManager.cpp b/libs/binder/IActivityManager.cpp
index 428db4d..377f604 100644
--- a/libs/binder/IActivityManager.cpp
+++ b/libs/binder/IActivityManager.cpp
@@ -17,8 +17,8 @@
#include <unistd.h>
#include <fcntl.h>
+#include <binder/ActivityManager.h>
#include <binder/IActivityManager.h>
-
#include <binder/Parcel.h>
namespace android {
@@ -90,6 +90,20 @@
if (reply.readExceptionCode() != 0) return false;
return reply.readInt32() == 1;
}
+
+ virtual int32_t getUidProcessState(const uid_t uid, const String16& callingPackage)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(IActivityManager::getInterfaceDescriptor());
+ data.writeInt32(uid);
+ data.writeString16(callingPackage);
+ remote()->transact(GET_UID_PROCESS_STATE_TRANSACTION, data, &reply);
+ // fail on exception
+ if (reply.readExceptionCode() != 0) {
+ return ActivityManager::PROCESS_STATE_UNKNOWN;
+ }
+ return reply.readInt32();
+ }
};
// ------------------------------------------------------------------------------------
diff --git a/libs/binder/IUidObserver.cpp b/libs/binder/IUidObserver.cpp
index 697e948..82f9047 100644
--- a/libs/binder/IUidObserver.cpp
+++ b/libs/binder/IUidObserver.cpp
@@ -55,6 +55,16 @@
data.writeInt32(disabled ? 1 : 0);
remote()->transact(ON_UID_IDLE_TRANSACTION, data, &reply, IBinder::FLAG_ONEWAY);
}
+
+ virtual void onUidStateChanged(uid_t uid, int32_t procState, int64_t procStateSeq)
+ {
+ Parcel data, reply;
+ data.writeInterfaceToken(IUidObserver::getInterfaceDescriptor());
+ data.writeInt32((int32_t) uid);
+ data.writeInt32(procState);
+ data.writeInt64(procStateSeq);
+ remote()->transact(ON_UID_STATE_CHANGED_TRANSACTION, data, &reply, IBinder::FLAG_ONEWAY);
+ }
};
// ----------------------------------------------------------------------
@@ -89,6 +99,14 @@
onUidIdle(uid, disabled);
return NO_ERROR;
} break;
+ case ON_UID_STATE_CHANGED_TRANSACTION: {
+ CHECK_INTERFACE(IUidObserver, data, reply);
+ uid_t uid = data.readInt32();
+ int32_t procState = data.readInt32();
+ int64_t procStateSeq = data.readInt64();
+ onUidStateChanged(uid, procState, procStateSeq);
+ return NO_ERROR;
+ } break;
default:
return BBinder::onTransact(code, data, reply, flags);
}
diff --git a/libs/binder/include/binder/ActivityManager.h b/libs/binder/include/binder/ActivityManager.h
index b8db091..26dafd0 100644
--- a/libs/binder/include/binder/ActivityManager.h
+++ b/libs/binder/include/binder/ActivityManager.h
@@ -31,6 +31,8 @@
public:
enum {
+ // Flag for registerUidObserver: report uid state changed
+ UID_OBSERVER_PROCSTATE = 1<<0,
// Flag for registerUidObserver: report uid gone
UID_OBSERVER_GONE = 1<<1,
// Flag for registerUidObserver: report uid has become idle
@@ -40,8 +42,27 @@
};
enum {
- // Not a real process state
- PROCESS_STATE_UNKNOWN = -1
+ PROCESS_STATE_UNKNOWN = -1,
+ PROCESS_STATE_PERSISTENT = 0,
+ PROCESS_STATE_PERSISTENT_UI = 1,
+ PROCESS_STATE_TOP = 2,
+ PROCESS_STATE_FOREGROUND_SERVICE = 3,
+ PROCESS_STATE_BOUND_FOREGROUND_SERVICE = 4,
+ PROCESS_STATE_IMPORTANT_FOREGROUND = 5,
+ PROCESS_STATE_IMPORTANT_BACKGROUND = 6,
+ PROCESS_STATE_TRANSIENT_BACKGROUND = 7,
+ PROCESS_STATE_BACKUP = 8,
+ PROCESS_STATE_SERVICE = 9,
+ PROCESS_STATE_RECEIVER = 10,
+ PROCESS_STATE_TOP_SLEEPING = 11,
+ PROCESS_STATE_HEAVY_WEIGHT = 12,
+ PROCESS_STATE_HOME = 13,
+ PROCESS_STATE_LAST_ACTIVITY = 14,
+ PROCESS_STATE_CACHED_ACTIVITY = 15,
+ PROCESS_STATE_CACHED_ACTIVITY_CLIENT = 16,
+ PROCESS_STATE_CACHED_RECENT = 17,
+ PROCESS_STATE_CACHED_EMPTY = 18,
+ PROCESS_STATE_NONEXISTENT = 19,
};
ActivityManager();
@@ -53,8 +74,10 @@
const String16& callingPackage);
void unregisterUidObserver(const sp<IUidObserver>& observer);
bool isUidActive(const uid_t uid, const String16& callingPackage);
+ int getUidProcessState(const uid_t uid, const String16& callingPackage);
- status_t linkToDeath(const sp<IBinder::DeathRecipient>& recipient);
+
+ status_t linkToDeath(const sp<IBinder::DeathRecipient>& recipient);
status_t unlinkToDeath(const sp<IBinder::DeathRecipient>& recipient);
private:
diff --git a/libs/binder/include/binder/IActivityManager.h b/libs/binder/include/binder/IActivityManager.h
index f34969b..6abc071 100644
--- a/libs/binder/include/binder/IActivityManager.h
+++ b/libs/binder/include/binder/IActivityManager.h
@@ -38,12 +38,14 @@
const String16& callingPackage) = 0;
virtual void unregisterUidObserver(const sp<IUidObserver>& observer) = 0;
virtual bool isUidActive(const uid_t uid, const String16& callingPackage) = 0;
+ virtual int32_t getUidProcessState(const uid_t uid, const String16& callingPackage) = 0;
enum {
OPEN_CONTENT_URI_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION,
REGISTER_UID_OBSERVER_TRANSACTION,
UNREGISTER_UID_OBSERVER_TRANSACTION,
- IS_UID_ACTIVE_TRANSACTION
+ IS_UID_ACTIVE_TRANSACTION,
+ GET_UID_PROCESS_STATE_TRANSACTION
};
};
diff --git a/libs/binder/include/binder/IUidObserver.h b/libs/binder/include/binder/IUidObserver.h
index 9937ad6..a1f530d 100644
--- a/libs/binder/include/binder/IUidObserver.h
+++ b/libs/binder/include/binder/IUidObserver.h
@@ -34,11 +34,13 @@
virtual void onUidGone(uid_t uid, bool disabled) = 0;
virtual void onUidActive(uid_t uid) = 0;
virtual void onUidIdle(uid_t uid, bool disabled) = 0;
+ virtual void onUidStateChanged(uid_t uid, int32_t procState, int64_t procStateSeq) = 0;
enum {
ON_UID_GONE_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION,
ON_UID_ACTIVE_TRANSACTION,
- ON_UID_IDLE_TRANSACTION
+ ON_UID_IDLE_TRANSACTION,
+ ON_UID_STATE_CHANGED_TRANSACTION
};
};