Add memory leak tracking/debugging code to drm server (ed73246b) · Commits · e / os / android_frameworks_base

drm/drmserver/Android.mk

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		@@ -19,6 +19,7 @@
		#include <utils/Log.h>

		#include <private/android_filesystem_config.h>
		#include <media/MemoryLeakTrackUtil.h>

		#include <errno.h>
		#include <utils/threads.h>
		@@ -256,3 +257,31 @@ ssize_t DrmManagerService::pread(int uniqueId, DecryptHandle* decryptHandle,
		return mDrmManager->pread(uniqueId, decryptHandle, buffer, numBytes, offset);
		}

		status_t DrmManagerService::dump(int fd, const Vector<String16>& args)
		{
		const size_t SIZE = 256;
		char buffer[SIZE];
		String8 result;
		if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
		snprintf(buffer, SIZE, "Permission Denial: "
		"can't dump DrmManagerService from pid=%d, uid=%d\n",
		IPCThreadState::self()->getCallingPid(),
		IPCThreadState::self()->getCallingUid());
		result.append(buffer);
		} else {
		#if DRM_MEMORY_LEAK_TRACK
		bool dumpMem = false;
		for (size_t i = 0; i < args.size(); i++) {
		if (args[i] == String16("-m")) {
		dumpMem = true;
		}
		}
		if (dumpMem) {
		dumpMemoryAddresses(fd);
		}
		#endif
		}
		write(fd, result.string(), result.size());
		return NO_ERROR;
		}

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		@@ -115,6 +115,8 @@ public:
		ssize_t pread(int uniqueId, DecryptHandle* decryptHandle,
		void* buffer, ssize_t numBytes, off64_t offset);

		virtual status_t dump(int fd, const Vector<String16>& args);

		private:
		DrmManager* mDrmManager;
		};

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		/*
		* Copyright 2011, 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.
		*/
		#ifndef MEMORY_LEAK_TRACK_UTIL_H
		#define MEMORY_LEAK_TRACK_UTIL_H

		namespace android {
		/*
		* Dump the memory adddress of the calling process to the given fd.
		*/
		extern void dumpMemoryAddresses(int fd);

		};

		#endif // MEMORY_LEAK_TRACK_UTIL_H

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