1 files changed, 62 insertions, 0 deletions
diff --git a/media/utils/SchedulingPolicyService.cpp b/media/utils/SchedulingPolicyService.cpp
new file mode 100644
index 0000000..17ee9bc
--- /dev/null
+++ b/media/utils/SchedulingPolicyService.cpp
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2012 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_TAG "SchedulingPolicyService"
+//#define LOG_NDEBUG 0
+
+#include <binder/IServiceManager.h>
+#include <utils/Mutex.h>
+#include "ISchedulingPolicyService.h"
+#include "mediautils/SchedulingPolicyService.h"
+
+namespace android {
+
+static sp<ISchedulingPolicyService> sSchedulingPolicyService;
+static const String16 _scheduling_policy("scheduling_policy");
+static Mutex sMutex;
+
+int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool asynchronous)
+{
+    // FIXME merge duplicated code related to service lookup, caching, and error recovery
+    int ret;
+    for (;;) {
+        sMutex.lock();
+        sp<ISchedulingPolicyService> sps = sSchedulingPolicyService;
+        sMutex.unlock();
+        if (sps == 0) {
+            sp<IBinder> binder = defaultServiceManager()->checkService(_scheduling_policy);
+            if (binder == 0) {
+                sleep(1);
+                continue;
+            }
+            sps = interface_cast<ISchedulingPolicyService>(binder);
+            sMutex.lock();
+            sSchedulingPolicyService = sps;
+            sMutex.unlock();
+        }
+        ret = sps->requestPriority(pid, tid, prio, asynchronous);
+        if (ret != DEAD_OBJECT) {
+            break;
+        }
+        ALOGW("SchedulingPolicyService died");
+        sMutex.lock();
+        sSchedulingPolicyService.clear();
+        sMutex.unlock();
+    }
+    return ret;
+}
+
+}   // namespace android