media: add ResourceManagerService
Bug: 19620911
Change-Id: Iea173d310d31781bc50effe3d9bd6553cb5139eb
diff --git a/media/libmedia/IResourceManagerService.cpp b/media/libmedia/IResourceManagerService.cpp
new file mode 100644
index 0000000..95a2d1c
--- /dev/null
+++ b/media/libmedia/IResourceManagerService.cpp
@@ -0,0 +1,169 @@
+/*
+**
+** Copyright 2015, 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.
+*/
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "IResourceManagerService"
+#include <utils/Log.h>
+
+#include "media/IResourceManagerService.h"
+
+#include <binder/Parcel.h>
+
+#include <stdint.h>
+#include <sys/types.h>
+
+namespace android {
+
+enum {
+ CONFIG = IBinder::FIRST_CALL_TRANSACTION,
+ ADD_RESOURCE,
+ REMOVE_RESOURCE,
+ RECLAIM_RESOURCE,
+};
+
+template <typename T>
+static void writeToParcel(Parcel *data, const Vector<T> &items) {
+ size_t size = items.size();
+ size_t sizePosition = data->dataPosition();
+ // truncates size, but should be okay for this usecase
+ data->writeUint32(static_cast<uint32_t>(size));
+ for (size_t i = 0; i < size; i++) {
+ size_t position = data->dataPosition();
+ items[i].writeToParcel(data);
+ }
+}
+
+template <typename T>
+static void readFromParcel(const Parcel &data, Vector<T> *items) {
+ size_t size = (size_t)data.readUint32();
+ for (size_t i = 0; i < size; i++) {
+ T item;
+ item.readFromParcel(data);
+ items->add(item);
+ }
+}
+
+class BpResourceManagerService : public BpInterface<IResourceManagerService>
+{
+public:
+ BpResourceManagerService(const sp<IBinder> &impl)
+ : BpInterface<IResourceManagerService>(impl)
+ {
+ }
+
+ virtual void config(const Vector<MediaResourcePolicy> &policies) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IResourceManagerService::getInterfaceDescriptor());
+ writeToParcel(&data, policies);
+ remote()->transact(CONFIG, data, &reply);
+ }
+
+ virtual void addResource(
+ int pid,
+ int64_t clientId,
+ const sp<IResourceManagerClient> client,
+ const Vector<MediaResource> &resources) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IResourceManagerService::getInterfaceDescriptor());
+ data.writeInt32(pid);
+ data.writeInt64(clientId);
+ data.writeStrongBinder(IInterface::asBinder(client));
+ writeToParcel(&data, resources);
+
+ remote()->transact(ADD_RESOURCE, data, &reply);
+ }
+
+ virtual void removeResource(int64_t clientId) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IResourceManagerService::getInterfaceDescriptor());
+ data.writeInt64(clientId);
+
+ remote()->transact(REMOVE_RESOURCE, data, &reply);
+ }
+
+ virtual bool reclaimResource(int callingPid, const Vector<MediaResource> &resources) {
+ Parcel data, reply;
+ data.writeInterfaceToken(IResourceManagerService::getInterfaceDescriptor());
+ data.writeInt32(callingPid);
+ writeToParcel(&data, resources);
+
+ bool ret = false;
+ status_t status = remote()->transact(RECLAIM_RESOURCE, data, &reply);
+ if (status == NO_ERROR) {
+ ret = (bool)reply.readInt32();
+ }
+ return ret;
+ }
+};
+
+IMPLEMENT_META_INTERFACE(ResourceManagerService, "android.media.IResourceManagerService");
+
+// ----------------------------------------------------------------------
+
+
+status_t BnResourceManagerService::onTransact(
+ uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags)
+{
+ switch (code) {
+ case CONFIG: {
+ CHECK_INTERFACE(IResourceManagerService, data, reply);
+ int pid = data.readInt32();
+ sp<IResourceManagerClient> client(
+ interface_cast<IResourceManagerClient>(data.readStrongBinder()));
+ Vector<MediaResourcePolicy> policies;
+ readFromParcel(data, &policies);
+ config(policies);
+ return NO_ERROR;
+ } break;
+
+ case ADD_RESOURCE: {
+ CHECK_INTERFACE(IResourceManagerService, data, reply);
+ int pid = data.readInt32();
+ int64_t clientId = data.readInt64();
+ sp<IResourceManagerClient> client(
+ interface_cast<IResourceManagerClient>(data.readStrongBinder()));
+ Vector<MediaResource> resources;
+ readFromParcel(data, &resources);
+ addResource(pid, clientId, client, resources);
+ return NO_ERROR;
+ } break;
+
+ case REMOVE_RESOURCE: {
+ CHECK_INTERFACE(IResourceManagerService, data, reply);
+ int64_t clientId = data.readInt64();
+ removeResource(clientId);
+ return NO_ERROR;
+ } break;
+
+ case RECLAIM_RESOURCE: {
+ CHECK_INTERFACE(IResourceManagerService, data, reply);
+ int callingPid = data.readInt32();
+ Vector<MediaResource> resources;
+ readFromParcel(data, &resources);
+ bool ret = reclaimResource(callingPid, resources);
+ reply->writeInt32(ret);
+ return NO_ERROR;
+ } break;
+
+ default:
+ return BBinder::onTransact(code, data, reply, flags);
+ }
+}
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android