jruby/cext/src/Handle.cpp at tmpdir-failure · MSNexploder/jruby · GitHub

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/***** BEGIN LICENSE BLOCK *****

* Version: CPL 1.0/GPL 2.0/LGPL 2.1

* The contents of this file are subject to the Common Public

* License Version 1.0 (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.eclipse.org/legal/cpl-v10.html

* Software distributed under the License is distributed on an "AS

* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or

* implied. See the License for the specific language governing

* rights and limitations under the License.

* Alternatively, the contents of this file may be used under the terms of

* either of the GNU General Public License Version 2 or later (the "GPL"),

* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),

* in which case the provisions of the GPL or the LGPL are applicable instead

* of those above. If you wish to allow use of your version of this file only

* under the terms of either the GPL or the LGPL, and not to allow others to

* use your version of this file under the terms of the CPL, indicate your

* decision by deleting the provisions above and replace them with the notice

* and other provisions required by the GPL or the LGPL. If you do not delete

* the provisions above, a recipient may use your version of this file under

* the terms of any one of the CPL, the GPL or the LGPL.

***** END LICENSE BLOCK *****/

#include <jni.h>

#include "JUtil.h"

#include "Handle.h"

#include "jruby.h"

#include "ruby.h"

#include "JLocalEnv.h"

#include "org_jruby_cext_Native.h"

#include "JavaException.h"

#include "org_jruby_runtime_ClassIndex.h"

using namespace jruby;

Handle* jruby::constHandles[3];

HandleList jruby::liveHandles = TAILQ_HEAD_INITIALIZER(liveHandles);

HandleList jruby::deadHandles = TAILQ_HEAD_INITIALIZER(deadHandles);

DataSyncQueue jruby::nsyncq = TAILQ_HEAD_INITIALIZER(nsyncq);

DataSyncQueue jruby::jsyncq = TAILQ_HEAD_INITIALIZER(jsyncq);

DataSyncQueue jruby::cleanq = TAILQ_HEAD_INITIALIZER(cleanq);

Handle::Handle()

{

obj = NULL;

Init();

}

Handle::Handle(JNIEnv* env, jobject obj_, int type_)

{

Init();

setType(type_);

this->obj = env->NewGlobalRef(obj_);

}

Handle::~Handle()

{

}

void

Handle::Init()

{

flags = 0;

setType(T_NONE);

TAILQ_INSERT_TAIL(&liveHandles, this, all);

}

Handle*

Handle::specialHandle(VALUE v)

{

if (likely((RSHIFT(v, 1) & ~3UL) == 0)) {

return jruby::constHandles[(v >> 1) & 0x3UL];

}

rb_raise(rb_eTypeError, "%llx is not a valid handle", (unsigned long long) v);

return NULL;

}

void

Handle::makeStrong_(JNIEnv* env)

{

if ((flags & FL_WEAK) != 0) {

jobject tmp = env->NewLocalRef(obj);

if (unlikely(env->IsSameObject(tmp, NULL))) {

rb_raise(rb_eRuntimeError, "weak handle is null");

}

env->DeleteWeakGlobalRef(obj);

obj = env->NewGlobalRef(tmp);

env->DeleteLocalRef(tmp);

flags &= ~FL_WEAK;

}

RubyFixnum::RubyFixnum(JNIEnv* env, jobject obj_, jlong value_): Handle(env, obj_, T_FIXNUM)

{

this->value = value_;

}

extern "C" JNIEXPORT jlong JNICALL

Java_org_jruby_cext_Native_newHandle(JNIEnv* env, jobject self, jobject obj, jint type)

{

Handle* h;

switch (type) {

#define T(x) \

case org_jruby_runtime_ClassIndex_##x: \

h = new Handle(env, obj, T_##x); \

break;

T(BIGNUM);

T(NIL);

T(TRUE);

T(FALSE);

T(SYMBOL);

T(REGEXP);

T(HASH);

T(MODULE);

T(CLASS);

T(OBJECT);

T(STRUCT);

T(FILE);

case org_jruby_runtime_ClassIndex_NO_INDEX:

h = new Handle(env, obj, T_NONE);

break;

case org_jruby_runtime_ClassIndex_MATCHDATA:

h = new Handle(env, obj, T_MATCH);

break;

case org_jruby_runtime_ClassIndex_STRING:

h = new RubyString(env, obj);

break;

case org_jruby_runtime_ClassIndex_ARRAY:

h = new RubyArray(env, obj);

break;

case org_jruby_runtime_ClassIndex_FLOAT:

h = new RubyFloat(env, obj, env->GetDoubleField(obj, RubyFloat_value_field));

break;

case org_jruby_runtime_ClassIndex_TIME:

h = new Handle(env, obj, T_DATA); // Special case handling

break;

default:

h = new Handle(env, obj, T_OBJECT);

break;

}

return jruby::p2j(h);

}

extern "C" JNIEXPORT jlong JNICALL

Java_org_jruby_cext_Native_newFixnumHandle(JNIEnv* env, jobject self, jobject obj, jlong value)

{

return jruby::p2j(new RubyFixnum(env, obj, value));

}

extern "C" JNIEXPORT jlong JNICALL

Java_org_jruby_cext_Native_newFloatHandle(JNIEnv* env, jobject self, jobject obj, jdouble value)

{

return jruby::p2j(new RubyFloat(env, obj, value));

}

extern "C" JNIEXPORT jlong JNICALL

Java_org_jruby_cext_Native_newIOHandle(JNIEnv* env, jobject self, jobject obj, jint fileno, jint mode)

{

return jruby::p2j(new RubyIO(env, obj, fileno, mode));

}

* Class: org_jruby_cext_Native

* Method: freeHandle

* Signature: (J)V

extern "C" JNIEXPORT void

JNICALL Java_org_jruby_cext_Native_freeHandle(JNIEnv* env, jclass self, jlong address)

{

Handle* h = reinterpret_cast<Handle*>(address);

TAILQ_REMOVE(&liveHandles, h, all);

if ((h->flags & FL_WEAK) != 0) {

env->DeleteWeakGlobalRef(h->obj);

} else {

env->DeleteGlobalRef(h->obj);

}

delete h;

}

jobject

jruby::valueToObject(JNIEnv* env, VALUE v)

{

if (FIXNUM_P(v)) {

return fixnumToObject(env, v);

} else if (SYMBOL_P(v)) {

return idToObject(env, SYM2ID(v));

}

Handle* h = Handle::valueOf(v);

// FIXME: Sometimes h will not be a pointer here, and segfault on the next line

if (likely((h->flags & FL_WEAK) == 0)) {

return h->obj;

}

jobject obj = env->NewLocalRef(h->obj);

if (unlikely(env->IsSameObject(obj, NULL))) {

rb_raise(rb_eRuntimeError, "weak handle is null");

}

return obj;

}

VALUE

jruby::objectToValue(JNIEnv* env, jobject obj)

{

// Should never get null from JRuby, but check for it just in case

if (env->IsSameObject(obj, NULL)) {

return Qnil;

}

VALUE v = (VALUE) env->CallStaticLongMethod(Handle_class, Handle_nativeHandle, obj);

makeStrongRef(env, v);

checkExceptions(env);

return v;

}

void

jruby::runSyncQueue(JNIEnv *env, DataSyncQueue* q)

{

DataSync* d;

for (d = TAILQ_FIRST(q); d != TAILQ_END(q); ) {

DataSync* next = TAILQ_NEXT(d, syncq);

if (!(*d->sync)(env, d)) {

TAILQ_REMOVE(q, d, syncq);

}

d = next;

}

* Class: org_jruby_cext_Native

* Method: newRString

* Signature: ()J

extern "C" JNIEXPORT jlong JNICALL

Java_org_jruby_cext_Native_newRString(JNIEnv* env, jclass self)

{

return p2j(calloc(1, sizeof(struct RString)));

}

* Class: org_jruby_cext_Native

* Method: freeRString

* Signature: (J)V

extern "C" JNIEXPORT void JNICALL

Java_org_jruby_cext_Native_freeRString(JNIEnv* env, jclass self, jlong address)

{

RString* rstring = (RString *) j2p(address);

if (rstring != NULL) {

if (rstring->ptr != NULL) {

free(rstring->ptr);

}

free(rstring);

}

* Class: org_jruby_cext_Native

* Method: newRArray

* Signature: ()J

extern "C" JNIEXPORT jlong JNICALL

Java_org_jruby_cext_Native_newRArray(JNIEnv* env, jclass self)

{

return p2j(calloc(1, sizeof(struct RArray)));

}

* Class: org_jruby_cext_Native

* Method: freeRArray

* Signature: (J)V

extern "C" JNIEXPORT void JNICALL

Java_org_jruby_cext_Native_freeRArray(JNIEnv* env, jclass self, jlong address)

{

RArray* rarray = (RArray *) j2p(address);

if (rarray != NULL) {

if (rarray->ptr != NULL) {

free(rarray->ptr);

}

free(rarray);

}

jruby/cext/src/Handle.cpp at tmpdir-failure · MSNexploder/jruby · GitHub

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