auto import from //depot/cupcake/@135843

1 files changed, 164 insertions, 0 deletions

diff --git a/vm/native/java_lang_Runtime.c b/vm/native/java_lang_Runtime.c
new file mode 100644
index 000000000..1278f032b
--- /dev/null
+++ b/vm/native/java_lang_Runtime.c
@@ -0,0 +1,164 @@
+/*
+ * Copyright (C) 2008 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.
+ */
+
+/*
+ * java.lang.Runtime
+ */
+#include "Dalvik.h"
+#include "native/InternalNativePriv.h"
+
+
+/*
+ * public void gc()
+ *
+ * Initiate a gc.
+ */
+static void Dalvik_java_lang_Runtime_gc(const u4* args, JValue* pResult)
+{
+    UNUSED_PARAMETER(args);
+
+    dvmCollectGarbage(false);
+    RETURN_VOID();
+}
+
+/*
+ * private static void nativeExit(int code, boolean isExit)
+ *
+ * Runtime.exit() calls this after doing shutdown processing.  Runtime.halt()
+ * uses this as well.
+ */
+static void Dalvik_java_lang_Runtime_nativeExit(const u4* args,
+    JValue* pResult)
+{
+    int status = args[0];
+    bool isExit = (args[1] != 0);
+
+    if (isExit && gDvm.exitHook != NULL) {
+        dvmChangeStatus(NULL, THREAD_NATIVE);
+        (*gDvm.exitHook)(status);     // not expected to return
+        dvmChangeStatus(NULL, THREAD_RUNNING);
+        LOGW("JNI exit hook returned\n");
+    }
+    LOGD("Calling exit(%d)\n", status);
+    exit(status);
+}
+
+/*
+ * static boolean nativeLoad(String filename, ClassLoader loader)
+ *
+ * Load the specified full path as a dynamic library filled with
+ * JNI-compatible methods.
+ */
+static void Dalvik_java_lang_Runtime_nativeLoad(const u4* args,
+    JValue* pResult)
+{
+    StringObject* fileNameObj = (StringObject*) args[0];
+    Object* classLoader = (Object*) args[1];
+    char* fileName;
+    int result;
+
+    if (fileNameObj == NULL)
+        RETURN_INT(false);
+    fileName = dvmCreateCstrFromString(fileNameObj);
+
+    result = dvmLoadNativeCode(fileName, classLoader);
+
+    free(fileName);
+    RETURN_INT(result);
+}
+
+/*
+ * public void runFinalization(boolean forced)
+ *
+ * Requests that the VM runs finalizers for objects on the heap. If the
+ * parameter forced is true, then the VM needs to ensure finalization.
+ * Otherwise this only inspires the VM to make a best-effort attempt to
+ * run finalizers before returning, but it's not guaranteed to actually
+ * do anything.
+ */
+static void Dalvik_java_lang_Runtime_runFinalization(const u4* args,
+    JValue* pResult)
+{
+    bool forced = (args[0] != 0);
+
+    dvmWaitForHeapWorkerIdle();
+    if (forced) {
+        // TODO(Google) Need to explicitly implement this,
+        //              although dvmWaitForHeapWorkerIdle()
+        //              should usually provide the "forced"
+        //              behavior already.
+    }
+
+    RETURN_VOID();
+}
+
+/*
+ * public void maxMemory()
+ *
+ * Returns GC heap max memory in bytes.
+ */
+static void Dalvik_java_lang_Runtime_maxMemory(const u4* args, JValue* pResult)
+{
+    unsigned int result = gDvm.heapSizeMax;
+    RETURN_LONG(result);
+}
+
+/*
+ * public void totalMemory()
+ *
+ * Returns GC heap total memory in bytes.
+ */
+static void Dalvik_java_lang_Runtime_totalMemory(const u4* args,
+    JValue* pResult)
+{
+    int result = dvmGetHeapDebugInfo(kVirtualHeapSize);
+    RETURN_LONG(result);
+}
+
+/*
+ * public void freeMemory()
+ *
+ * Returns GC heap free memory in bytes.
+ */
+static void Dalvik_java_lang_Runtime_freeMemory(const u4* args,
+    JValue* pResult)
+{
+    int result = dvmGetHeapDebugInfo(kVirtualHeapSize)
+                 - dvmGetHeapDebugInfo(kVirtualHeapAllocated);
+    if (result < 0) {
+        result = 0;
+    }
+    RETURN_LONG(result);
+}
+
+const DalvikNativeMethod dvm_java_lang_Runtime[] = {
+    { "freeMemory",          "()J",
+        Dalvik_java_lang_Runtime_freeMemory },
+    { "gc",                 "()V",
+        Dalvik_java_lang_Runtime_gc },
+    { "maxMemory",          "()J",
+        Dalvik_java_lang_Runtime_maxMemory },
+    { "nativeExit",         "(IZ)V",
+        Dalvik_java_lang_Runtime_nativeExit },
+    { "nativeLoad",         "(Ljava/lang/String;Ljava/lang/ClassLoader;)Z",
+        Dalvik_java_lang_Runtime_nativeLoad },
+    { "runFinalization",    "(Z)V",
+        Dalvik_java_lang_Runtime_runFinalization },
+    { "totalMemory",          "()J",
+        Dalvik_java_lang_Runtime_totalMemory },
+    { NULL, NULL, NULL },
+};
+