Add Debug.MemoryInfo.getMemoryStats API. (350e6dc9) · Commits · e / os / android_frameworks_base

api/current.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -22861,6 +22861,8 @@ package android.os {
		public static class Debug.MemoryInfo implements android.os.Parcelable {
		ctor public Debug.MemoryInfo();
		method public int describeContents();
		method public java.lang.String getMemoryStat(java.lang.String);
		method public java.util.Map<java.lang.String, java.lang.String> getMemoryStats();
		method public int getTotalPrivateClean();
		method public int getTotalPrivateDirty();
		method public int getTotalPss();

api/system-current.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -24772,6 +24772,8 @@ package android.os {
		public static class Debug.MemoryInfo implements android.os.Parcelable {
		ctor public Debug.MemoryInfo();
		method public int describeContents();
		method public java.lang.String getMemoryStat(java.lang.String);
		method public java.util.Map<java.lang.String, java.lang.String> getMemoryStats();
		method public int getTotalPrivateClean();
		method public int getTotalPrivateDirty();
		method public int getTotalPss();

core/java/android/os/Debug.java

+127 −0

Original line number	Diff line number	Diff line
		@@ -34,6 +34,7 @@ import java.lang.annotation.Target;
		import java.lang.annotation.ElementType;
		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;
		import java.util.HashMap;
		import java.util.Map;

		import org.apache.harmony.dalvik.ddmc.Chunk;
		@@ -389,6 +390,132 @@ public final class Debug
		}
		}

		/**
		* Returns the value of a particular memory statistic or {@code null} if no
		* such memory statistic exists.
		*
		* <p>The following table lists the memory statistics that are supported.
		* Note that memory statistics may be added or removed in a future API level.</p>
		*
		* <table>
		* <thead>
		* <tr>
		* <th>Memory statistic name</th>
		* <th>Meaning</th>
		* <th>Example</th>
		* <th>Supported (API Levels)</th>
		* </tr>
		* </thead>
		* <tbody>
		* <tr>
		* <td>summary.java-heap</td>
		* <td>The private Java Heap usage in kB. This corresponds to the Java Heap field
		* in the App Summary section output by dumpsys meminfo.</td>
		* <td>{@code 1442}</td>
		* <td>23</td>
		* </tr>
		* <tr>
		* <td>summary.native-heap</td>
		* <td>The private Native Heap usage in kB. This corresponds to the Native Heap
		* field in the App Summary section output by dumpsys meminfo.</td>
		* <td>{@code 1442}</td>
		* <td>23</td>
		* </tr>
		* <tr>
		* <td>summary.code</td>
		* <td>The memory usage for static code and resources in kB. This corresponds to
		* the Code field in the App Summary section output by dumpsys meminfo.</td>
		* <td>{@code 1442}</td>
		* <td>23</td>
		* </tr>
		* <tr>
		* <td>summary.stack</td>
		* <td>The stack usage in kB. This corresponds to the Stack field in the
		* App Summary section output by dumpsys meminfo.</td>
		* <td>{@code 1442}</td>
		* <td>23</td>
		* </tr>
		* <tr>
		* <td>summary.graphics</td>
		* <td>The graphics usage in kB. This corresponds to the Graphics field in the
		* App Summary section output by dumpsys meminfo.</td>
		* <td>{@code 1442}</td>
		* <td>23</td>
		* </tr>
		* <tr>
		* <td>summary.private-other</td>
		* <td>Other private memory usage in kB. This corresponds to the Private Other
		* field output in the App Summary section by dumpsys meminfo.</td>
		* <td>{@code 1442}</td>
		* <td>23</td>
		* </tr>
		* <tr>
		* <td>summary.system</td>
		* <td>Shared and system memory usage in kB. This corresponds to the System
		* field output in the App Summary section by dumpsys meminfo.</td>
		* <td>{@code 1442}</td>
		* <td>23</td>
		* </tr>
		* <tr>
		* <td>summary.total-pss</td>
		* <td>Total PPS memory usage in kB.</td>
		* <td>{@code 1442}</td>
		* <td>23</td>
		* </tr>
		* <tr>
		* <td>summary.total-swap</td>
		* <td>Total swap usage in kB.</td>
		* <td>{@code 1442}</td>
		* <td>23</td>
		* </tr>
		* </tbody>
		* </table>
		*/
		public String getMemoryStat(String statName) {
		switch(statName) {
		case "summary.java-heap":
		return Integer.toString(getSummaryJavaHeap());
		case "summary.native-heap":
		return Integer.toString(getSummaryNativeHeap());
		case "summary.code":
		return Integer.toString(getSummaryCode());
		case "summary.stack":
		return Integer.toString(getSummaryStack());
		case "summary.graphics":
		return Integer.toString(getSummaryGraphics());
		case "summary.private-other":
		return Integer.toString(getSummaryPrivateOther());
		case "summary.system":
		return Integer.toString(getSummarySystem());
		case "summary.total-pss":
		return Integer.toString(getSummaryTotalPss());
		case "summary.total-swap":
		return Integer.toString(getSummaryTotalSwap());
		default:
		return null;
		}
		}

		/**
		* Returns a map of the names/values of the memory statistics
		* that {@link #getMemoryStat(String)} supports.
		*
		* @return a map of the names/values of the supported memory statistics.
		*/
		public Map<String, String> getMemoryStats() {
		Map<String, String> stats = new HashMap<String, String>();
		stats.put("summary.java-heap", Integer.toString(getSummaryJavaHeap()));
		stats.put("summary.native-heap", Integer.toString(getSummaryNativeHeap()));
		stats.put("summary.code", Integer.toString(getSummaryCode()));
		stats.put("summary.stack", Integer.toString(getSummaryStack()));
		stats.put("summary.graphics", Integer.toString(getSummaryGraphics()));
		stats.put("summary.private-other", Integer.toString(getSummaryPrivateOther()));
		stats.put("summary.system", Integer.toString(getSummarySystem()));
		stats.put("summary.total-pss", Integer.toString(getSummaryTotalPss()));
		stats.put("summary.total-swap", Integer.toString(getSummaryTotalSwap()));
		return stats;
		}

		/**
		* Pss of Java Heap bytes in KB due to the application.
		* Notes: