MediaResourceMonitor: move code from libbinder

libbinder has some code in it that only this library uses. We shouldn't
pay the cost for this code in all users of libbinder.

Bug: 183654927
Test: boot
Change-Id: I3bff3e0a1175ca5ceb32794727c18cb82252c396
diff --git a/services/mediaresourcemanager/Android.bp b/services/mediaresourcemanager/Android.bp
index e503885..e67720c 100644
--- a/services/mediaresourcemanager/Android.bp
+++ b/services/mediaresourcemanager/Android.bp
@@ -13,6 +13,9 @@
     srcs: [
         "ResourceManagerService.cpp",
         "ServiceLog.cpp",
+
+        // TODO: convert to AIDL?
+        "IMediaResourceMonitor.cpp",
     ],
 
     shared_libs: [
diff --git a/services/mediaresourcemanager/IMediaResourceMonitor.cpp b/services/mediaresourcemanager/IMediaResourceMonitor.cpp
new file mode 100644
index 0000000..42d7feb
--- /dev/null
+++ b/services/mediaresourcemanager/IMediaResourceMonitor.cpp
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "IMediaResourceMonitor.h"
+#include <binder/Parcel.h>
+#include <utils/Errors.h>
+#include <sys/types.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------
+
+class BpMediaResourceMonitor : public BpInterface<IMediaResourceMonitor> {
+public:
+    explicit BpMediaResourceMonitor(const sp<IBinder>& impl)
+        : BpInterface<IMediaResourceMonitor>(impl) {}
+
+    virtual void notifyResourceGranted(/*in*/ int32_t pid, /*in*/ const int32_t type)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaResourceMonitor::getInterfaceDescriptor());
+        data.writeInt32(pid);
+        data.writeInt32(type);
+        remote()->transact(NOTIFY_RESOURCE_GRANTED, data, &reply, IBinder::FLAG_ONEWAY);
+    }
+};
+
+IMPLEMENT_META_INTERFACE(MediaResourceMonitor, "android.media.IMediaResourceMonitor")
+
+// ----------------------------------------------------------------------
+
+// NOLINTNEXTLINE(google-default-arguments)
+status_t BnMediaResourceMonitor::onTransact( uint32_t code, const Parcel& data, Parcel* reply,
+        uint32_t flags) {
+    switch(code) {
+        case NOTIFY_RESOURCE_GRANTED: {
+            CHECK_INTERFACE(IMediaResourceMonitor, data, reply);
+            int32_t pid = data.readInt32();
+            const int32_t type = data.readInt32();
+            notifyResourceGranted(/*in*/ pid, /*in*/ type);
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------
+
+} // namespace android
diff --git a/services/mediaresourcemanager/IMediaResourceMonitor.h b/services/mediaresourcemanager/IMediaResourceMonitor.h
new file mode 100644
index 0000000..f92d557
--- /dev/null
+++ b/services/mediaresourcemanager/IMediaResourceMonitor.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#ifndef __ANDROID_VNDK__
+
+#include <binder/IInterface.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------
+
+class IMediaResourceMonitor : public IInterface {
+public:
+    DECLARE_META_INTERFACE(MediaResourceMonitor)
+
+    // Values should be in sync with Intent.EXTRA_MEDIA_RESOURCE_TYPE_XXX.
+    enum {
+        TYPE_VIDEO_CODEC = 0,
+        TYPE_AUDIO_CODEC = 1,
+    };
+
+    virtual void notifyResourceGranted(/*in*/ int32_t pid, /*in*/ const int32_t type) = 0;
+
+    enum {
+        NOTIFY_RESOURCE_GRANTED = IBinder::FIRST_CALL_TRANSACTION,
+    };
+};
+
+// ----------------------------------------------------------------------
+
+class BnMediaResourceMonitor : public BnInterface<IMediaResourceMonitor> {
+public:
+    // NOLINTNEXTLINE(google-default-arguments)
+    virtual status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply,
+            uint32_t flags = 0);
+};
+
+// ----------------------------------------------------------------------
+
+} // namespace android
+
+#else // __ANDROID_VNDK__
+#error "This header is not visible to vendors"
+#endif // __ANDROID_VNDK__
diff --git a/services/mediaresourcemanager/ResourceManagerService.cpp b/services/mediaresourcemanager/ResourceManagerService.cpp
index 3d2cceb..1695228 100644
--- a/services/mediaresourcemanager/ResourceManagerService.cpp
+++ b/services/mediaresourcemanager/ResourceManagerService.cpp
@@ -21,7 +21,6 @@
 
 #include <android/binder_manager.h>
 #include <android/binder_process.h>
-#include <binder/IMediaResourceMonitor.h>
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
 #include <cutils/sched_policy.h>
@@ -36,6 +35,7 @@
 #include <sys/time.h>
 #include <unistd.h>
 
+#include "IMediaResourceMonitor.h"
 #include "ResourceManagerService.h"
 #include "ServiceLog.h"