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test/runtime/6929067/invoke.c@34aa07e92d22 (annotated)

test/runtime/6929067/invoke.c

Thu, 19 Sep 2013 09:36:51 -0700

author

cl

date

Thu, 19 Sep 2013 09:36:51 -0700

changeset 5664

34aa07e92d22

parent 0

f90c822e73f8

permissions

-rw-r--r--

Added tag jdk8-b108 for changeset 85072013aad4

aoqi@0	1	#include <assert.h>
aoqi@0	2	#include <jni.h>
aoqi@0	3	#include <alloca.h>
aoqi@0	4
aoqi@0	5	#include <pthread.h>
aoqi@0	6
aoqi@0	7	union env_union
aoqi@0	8	{
aoqi@0	9	void *void_env;
aoqi@0	10	JNIEnv *jni_env;
aoqi@0	11	};
aoqi@0	12
aoqi@0	13	union env_union tmp;
aoqi@0	14	JNIEnv* env;
aoqi@0	15	JavaVM* jvm;
aoqi@0	16	JavaVMInitArgs vm_args;
aoqi@0	17	JavaVMOption options[1];
aoqi@0	18	jclass class_id;
aoqi@0	19	jmethodID method_id;
aoqi@0	20	jint result;
aoqi@0	21
aoqi@0	22	long product(unsigned long n, unsigned long m) {
aoqi@0	23	if (m == 1) {
aoqi@0	24	return n;
aoqi@0	25	} else {
aoqi@0	26	int *p = alloca(sizeof (int));
aoqi@0	27	*p = n;
aoqi@0	28	return product (n, m-1) + *p;
aoqi@0	29	}
aoqi@0	30	}
aoqi@0	31
aoqi@0	32	void *
aoqi@0	33	floobydust (void *p)
aoqi@0	34	{
aoqi@0	35	(*jvm)->AttachCurrentThread(jvm, &tmp.void_env, NULL);
aoqi@0	36	env = tmp.jni_env;
aoqi@0	37
aoqi@0	38	class_id = (*env)->FindClass (env, "T");
aoqi@0	39	assert (class_id);
aoqi@0	40
aoqi@0	41	method_id = (*env)->GetStaticMethodID (env, class_id, "printIt", "()V");
aoqi@0	42	assert (method_id);
aoqi@0	43
aoqi@0	44	(*env)->CallStaticVoidMethod (env, class_id, method_id, NULL);
aoqi@0	45
aoqi@0	46	(*jvm)->DetachCurrentThread(jvm);
aoqi@0	47
aoqi@0	48	printf("%ld\n", product(5000,5000));
aoqi@0	49
aoqi@0	50	(*jvm)->AttachCurrentThread(jvm, &tmp.void_env, NULL);
aoqi@0	51	env = tmp.jni_env;
aoqi@0	52
aoqi@0	53	class_id = (*env)->FindClass (env, "T");
aoqi@0	54	assert (class_id);
aoqi@0	55
aoqi@0	56	method_id = (*env)->GetStaticMethodID (env, class_id, "printIt", "()V");
aoqi@0	57	assert (method_id);
aoqi@0	58
aoqi@0	59	(*env)->CallStaticVoidMethod (env, class_id, method_id, NULL);
aoqi@0	60
aoqi@0	61	(*jvm)->DetachCurrentThread(jvm);
aoqi@0	62
aoqi@0	63	printf("%ld\n", product(5000,5000));
aoqi@0	64
aoqi@0	65	return NULL;
aoqi@0	66	}
aoqi@0	67
aoqi@0	68	int
aoqi@0	69	main (int argc, const char** argv)
aoqi@0	70	{
aoqi@0	71	options[0].optionString = "-Xss320k";
aoqi@0	72
aoqi@0	73	vm_args.version = JNI_VERSION_1_2;
aoqi@0	74	vm_args.ignoreUnrecognized = JNI_TRUE;
aoqi@0	75	vm_args.options = options;
aoqi@0	76	vm_args.nOptions = 1;
aoqi@0	77
aoqi@0	78	result = JNI_CreateJavaVM (&jvm, &tmp.void_env, &vm_args);
aoqi@0	79	assert (result >= 0);
aoqi@0	80
aoqi@0	81	env = tmp.jni_env;
aoqi@0	82
aoqi@0	83	floobydust (NULL);
aoqi@0	84
aoqi@0	85	pthread_t thr;
aoqi@0	86	pthread_create (&thr, NULL, floobydust, NULL);
aoqi@0	87	pthread_join (thr, NULL);
aoqi@0	88
aoqi@0	89	return 0;
aoqi@0	90	}