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jvmti.cc (_Jv_JVMTI_GetAllThreads): New function.

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2007-01-16  Kyle Galloway  <kgallowa@redhat.com>

	* jvmti.cc (_Jv_JVMTI_GetAllThreads): New function.
	* testsuite/libjava.jvmti/getallthreads.java: New test.
	* testsuite/libjava.jvmti/natgetallthreads.cc: Ditto.
	* testsuite/libjava.jvmti/getallthreads.out: Ditto.
	* testsuite/libjava.jvmti/getallthreads.h: Ditto.
	* testsuite/libjava.jvmti/getallthreads.jar: Ditto.

From-SVN: r120827
This commit is contained in:
Kyle Galloway 2007-01-16 15:06:28 +00:00 committed by Kyle Galloway
parent 878aa81717
commit 05794ce850
7 changed files with 250 additions and 1 deletions
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9
libjava/ChangeLog
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@ -1,3 +1,12 @@
2007-01-16 Kyle Galloway <kgallowa@redhat.com>
* jvmti.cc (_Jv_JVMTI_GetAllThreads): New function.
* testsuite/libjava.jvmti/getallthreads.java: New test.
* testsuite/libjava.jvmti/natgetallthreads.cc: Ditto.
* testsuite/libjava.jvmti/getallthreads.out: Ditto.
* testsuite/libjava.jvmti/getallthreads.h: Ditto.
* testsuite/libjava.jvmti/getallthreads.jar: Ditto.
2007-01-15 Keith Seitz <keiths@redhat.com>
* gnu/classpath/jdwp/natVMVirtualMachine.cc (suspendThread): Use

49
libjava/jvmti.cc
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@ -28,7 +28,9 @@ details. */
#include <java/lang/Class.h>
#include <java/lang/ClassLoader.h>
#include <java/lang/Object.h>
#include <java/lang/OutOfMemoryError.h>
#include <java/lang/Thread.h>
#include <java/lang/ThreadGroup.h>
#include <java/lang/Throwable.h>
#include <java/lang/VMClassLoader.h>
#include <java/lang/reflect/Field.h>
@ -196,6 +198,51 @@ _Jv_JVMTI_InterruptThread (MAYBE_UNUSED jvmtiEnv *env, jthread thread)
return JVMTI_ERROR_NONE;
}
jvmtiError
_Jv_JVMTI_GetAllThreads(MAYBE_UNUSED jvmtiEnv *env, jint *thread_cnt,
jthread **threads)
{
REQUIRE_PHASE (env, JVMTI_PHASE_LIVE);
NULL_CHECK (thread_cnt);
NULL_CHECK (threads);
using namespace java::lang;
Thread *thr = Thread::currentThread ();
ThreadGroup *root_grp = ThreadGroup::root;
jint estimate = root_grp->activeCount ();
JArray<Thread *> *thr_arr;
// Allocate some extra space since threads can be created between calls
try
{
thr_arr
= reinterpret_cast<JArray<Thread *> *> (JvNewObjectArray
((estimate * 2),
&Thread::class$, NULL));
}
catch (java::lang::OutOfMemoryError *err)
{
return JVMTI_ERROR_OUT_OF_MEMORY;
}
*thread_cnt = root_grp->enumerate (thr_arr);
jvmtiError jerr = env->Allocate ((jlong) ((*thread_cnt) * sizeof (jthread)),
(unsigned char **) threads);
if (jerr != JVMTI_ERROR_NONE)
return jerr;
// Transfer the threads to the result array
jthread *tmp_arr = reinterpret_cast<jthread *> (elements (thr_arr));
memcpy ((*threads), tmp_arr, (*thread_cnt));
return JVMTI_ERROR_NONE;
}
static jvmtiError JNICALL
_Jv_JVMTI_CreateRawMonitor (MAYBE_UNUSED jvmtiEnv *env, const char *name,
jrawMonitorID *result)
@ -1362,7 +1409,7 @@ struct _Jv_jvmtiEnv _Jv_JVMTI_Interface =
RESERVED, // reserved1
_Jv_JVMTI_SetEventNotificationMode, // SetEventNotificationMode
RESERVED, // reserved3
UNIMPLEMENTED, // GetAllThreads
_Jv_JVMTI_GetAllThreads, // GetAllThreads
_Jv_JVMTI_SuspendThread, // SuspendThread
_Jv_JVMTI_ResumeThread, // ResumeThread
UNIMPLEMENTED, // StopThread

35
libjava/testsuite/libjava.jvmti/getallthreads.h Normal file
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@ -0,0 +1,35 @@
// DO NOT EDIT THIS FILE - it is machine generated -*- c++ -*-
#ifndef __getallthreads__
#define __getallthreads__
#pragma interface
#include <java/lang/Thread.h>
#include <gcj/array.h>
extern "Java"
{
class getallthreads;
}
class getallthreads : public ::java::lang::Thread
{
public:
getallthreads ();
static void do_getallthreads_tests ();
virtual void run ();
virtual void natPlaceholder ();
virtual void natRunner ();
virtual void placeholder ();
virtual void runner ();
static void main (JArray< ::java::lang::String *> *);
static jint thread_num;
static ::java::util::ArrayList *threads;
jint __attribute__((aligned(__alignof__( ::java::lang::Thread )))) ex_frames;
jboolean done;
static ::java::lang::Class class$;
};
#endif /* __getallthreads__ */

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libjava/testsuite/libjava.jvmti/getallthreads.jar Normal file
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80
libjava/testsuite/libjava.jvmti/getallthreads.java Normal file
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@ -0,0 +1,80 @@
// Test JVMTI GetAllThreads
import java.util.ArrayList;
public class getallthreads extends Thread
{
public static int thread_num;
public static ArrayList threads;
public int ex_frames;
public boolean done = false;
public static native void do_getallthreads_tests ();
public void run ()
{
ex_frames = thread_num;
thread_num++;
if (ex_frames > 0)
{
if ((ex_frames % 2) == 0)
placeholder ();
else
natPlaceholder ();
}
else
runner ();
}
public native void natPlaceholder ();
public native void natRunner ();
public void placeholder ()
{
ex_frames--;
if (ex_frames > 0)
{
if ((thread_num % 2) == 0)
placeholder ();
else
natPlaceholder ();
}
else
runner ();
}
public void runner ()
{
done = true;
while (done)
yield ();
}
public static void main (String[] args)
{
System.out.println ("JVMTI GetAllThreads tests");
threads = new ArrayList (20);
getallthreads t;
for (int i = 0; i < 20; i++)
{
t = new getallthreads ();
threads.add (t);
t.start ();
while (!t.done)
yield ();
}
do_getallthreads_tests ();
for (int i = 0; i < 20; i++)
{
t = (getallthreads) threads.get(i);
t.done = false;
}
}
}

23
libjava/testsuite/libjava.jvmti/getallthreads.out Normal file
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@ -0,0 +1,23 @@
JVMTI GetAllThreads tests
Found thread 1
Found thread 2
Found thread 3
Found thread 4
Found thread 5
Found thread 6
Found thread 7
Found thread 8
Found thread 9
Found thread 10
Found thread 11
Found thread 12
Found thread 13
Found thread 14
Found thread 15
Found thread 16
Found thread 17
Found thread 18
Found thread 19
Found thread 20
Found thread 21
Found thread 22

55
libjava/testsuite/libjava.jvmti/natgetallthreads.cc Normal file
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@ -0,0 +1,55 @@
#include <gcj/cni.h>
#include <jvm.h>
#include <jvmti.h>
#include <stdio.h>
#include "jvmti-int.h"
#include "getallthreads.h"
void
getallthreads::natPlaceholder ()
{
ex_frames--;
if (ex_frames > 0)
{
if ((getallthreads::thread_num % 2) == 0)
placeholder ();
else
natPlaceholder ();
}
else
natRunner ();
}
void
getallthreads::natRunner ()
{
done = true;
while (done)
yield ();
}
void
getallthreads::do_getallthreads_tests ()
{
jvmtiEnv *env;
JavaVM *vm = _Jv_GetJavaVM ();
vm->GetEnv (reinterpret_cast<void **> (&env), JVMTI_VERSION_1_0);
jint num_threads;
jthread *thread_arr;
jvmtiError jerr = env->GetAllThreads (&num_threads, &thread_arr);
if (jerr != JVMTI_ERROR_NONE)
{
printf ("Test Failed, JVMTI Error!\n");
return;
}
env->Deallocate (reinterpret_cast<unsigned char *> (thread_arr));
for (int i = 0; i < num_threads; i++)
printf ("Found thread %d\n", i+1 );
}