Merge "limit mediaserver memory" into lmp-dev (76f9ec33) · Commits · e / os / android_frameworks_av

media/libmedia/Android.mk

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -38,6 +38,7 @@ LOCAL_SRC_FILES:= \
	IRemoteDisplayClient.cpp \		IRemoteDisplayClient.cpp \
	IStreamSource.cpp \		IStreamSource.cpp \
	MediaCodecInfo.cpp \		MediaCodecInfo.cpp \
			MediaUtils.cpp \
	Metadata.cpp \		Metadata.cpp \
	mediarecorder.cpp \		mediarecorder.cpp \
	IMediaMetadataRetriever.cpp \		IMediaMetadataRetriever.cpp \

media/libmedia/MediaUtils.cpp

0 → 100644

+74 −0

Original line number	Original line	Diff line number	Diff line
			/*
			* Copyright (C) 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.
			*/

			#define LOG_TAG "MediaUtils"
			#define LOG_NDEBUG 0
			#include <utils/Log.h>

			#include <cutils/properties.h>
			#include <sys/resource.h>
			#include <unistd.h>

			#include "MediaUtils.h"

			namespace android {

			void limitProcessMemory(
			const char *property,
			size_t numberOfBytes,
			size_t percentageOfTotalMem) {

			long pageSize = sysconf(_SC_PAGESIZE);
			long numPages = sysconf(_SC_PHYS_PAGES);
			size_t maxMem = SIZE_MAX;

			if (pageSize > 0 && numPages > 0) {
			if (size_t(numPages) < SIZE_MAX / size_t(pageSize)) {
			maxMem = size_t(numPages) * size_t(pageSize);
			}
			ALOGV("physMem: %zu", maxMem);
			if (percentageOfTotalMem > 100) {
			ALOGW("requested %zu%% of total memory, using 100%%", percentageOfTotalMem);
			percentageOfTotalMem = 100;
			}
			maxMem = maxMem / 100 * percentageOfTotalMem;
			if (numberOfBytes < maxMem) {
			maxMem = numberOfBytes;
			}
			ALOGV("requested limit: %zu", maxMem);
			} else {
			ALOGW("couldn't determine total RAM");
			}

			int64_t propVal = property_get_int64(property, maxMem);
			if (propVal > 0 && uint64_t(propVal) <= SIZE_MAX) {
			maxMem = propVal;
			}
			ALOGV("actual limit: %zu", maxMem);

			struct rlimit limit;
			getrlimit(RLIMIT_AS, &limit);
			ALOGV("original limits: %lld/%lld", (long long)limit.rlim_cur, (long long)limit.rlim_max);
			limit.rlim_cur = maxMem;
			setrlimit(RLIMIT_AS, &limit);
			limit.rlim_cur = -1;
			limit.rlim_max = -1;
			getrlimit(RLIMIT_AS, &limit);
			ALOGV("new limits: %lld/%lld", (long long)limit.rlim_cur, (long long)limit.rlim_max);

			}

			} // namespace android

media/libmedia/MediaUtils.h

0 → 100644

+35 −0

Original line number	Original line	Diff line number	Diff line
			/*
			* Copyright (C) 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.
			*/

			#ifndef _MEDIA_UTILS_H
			#define _MEDIA_UTILS_H

			namespace android {

			/**
			Limit the amount of memory a process can allocate using setrlimit(RLIMIT_AS).
			The value to use will be read from the specified system property, or if the
			property doesn't exist it will use the specified number of bytes or the
			specified percentage of total memory, whichever is smaller.
			*/
			void limitProcessMemory(
			const char *property,
			size_t numberOfBytes,
			size_t percentageOfTotalMem);

			} // namespace android

			#endif // _MEDIA_UTILS_H

media/mediaserver/Android.mk

+1 −0

Original line number	Original line	Diff line number	Diff line
	@@ -33,6 +33,7 @@ LOCAL_STATIC_LIBRARIES := \

	LOCAL_C_INCLUDES := \		LOCAL_C_INCLUDES := \
	frameworks/av/media/libmediaplayerservice \		frameworks/av/media/libmediaplayerservice \
			frameworks/av/media/libmedia \
	frameworks/av/services/medialog \		frameworks/av/services/medialog \
	frameworks/av/services/audioflinger \		frameworks/av/services/audioflinger \
	frameworks/av/services/audiopolicy \		frameworks/av/services/audiopolicy \

media/mediaserver/main_mediaserver.cpp

+6 −0

Original line number	Original line	Diff line number	Diff line
	@@ -33,6 +33,7 @@
	#include "CameraService.h"		#include "CameraService.h"
	#include "MediaLogService.h"		#include "MediaLogService.h"
	#include "MediaPlayerService.h"		#include "MediaPlayerService.h"
			#include "MediaUtils.h"
	#include "AudioPolicyService.h"		#include "AudioPolicyService.h"
	#include "SoundTriggerHwService.h"		#include "SoundTriggerHwService.h"

	@@ -40,6 +41,11 @@ using namespace android;

	int main(int argc __unused, char** argv)		int main(int argc __unused, char** argv)
	{		{
			limitProcessMemory(
			"ro.media.maxmem", /* property that defines limit */
			SIZE_MAX, /* upper limit in bytes */
			65 /* upper limit as percentage of physical RAM */);

	signal(SIGPIPE, SIG_IGN);		signal(SIGPIPE, SIG_IGN);
	char value[PROPERTY_VALUE_MAX];		char value[PROPERTY_VALUE_MAX];
	bool doLog = (property_get("ro.test_harness", value, "0") > 0) && (atoi(value) == 1);		bool doLog = (property_get("ro.test_harness", value, "0") > 0) && (atoi(value) == 1);