Martin Platter
Christian Thalinger
- $Id: jni.c 2427 2005-05-01 12:27:54Z jowenn $
+ $Id: jni.c 3095 2005-07-21 13:51:36Z motse $
*/
+#include <assert.h>
#include <string.h>
#include "config.h"
#include "native/include/java_lang_VMClass.h"
#include "native/include/java_lang_VMClassLoader.h"
+#if defined(ENABLE_JVMTI)
+# include "native/jvmti/jvmti.h"
+#endif
+
#if defined(USE_THREADS)
# if defined(NATIVE_THREADS)
# include "threads/native/threads.h"
#include "vm/jit/jit.h"
#include "vm/statistics.h"
+
/* XXX TWISTI hack: define it extern so they can be found in this file */
+
extern const struct JNIInvokeInterface JNI_JavaVMTable;
extern struct JNINativeInterface JNI_JNIEnvTable;
/* pointers to VM and the environment needed by GetJavaVM and GetEnv */
+
static JavaVM ptr_jvm = (JavaVM) &JNI_JavaVMTable;
-static void* ptr_env = (void*) &JNI_JNIEnvTable;
+void* ptr_env = (void*) &JNI_JNIEnvTable;
#define PTR_TO_ITEM(ptr) ((u8)(size_t)(ptr))
#define setField(obj,typ,var,val) *((typ*) ((long int) obj + (long int) var->offset))=val;
#define getField(obj,typ,var) *((typ*) ((long int) obj + (long int) var->offset))
-#define setfield_critical(clazz,obj,name,sig,jdatatype,val) setField(obj,jdatatype,getFieldID_critical(env,clazz,name,sig),val);
+#define setfield_critical(clazz,obj,name,sig,jdatatype,val) \
+ setField(obj, jdatatype, getFieldID_critical(env,clazz,name,sig), val);
+
-static void fill_callblock(void *obj, methoddesc *descr, jni_callblock blk[], va_list data, int rettype)
+static void fill_callblock_from_vargs(void *obj, methoddesc *descr,
+ jni_callblock blk[], va_list data,
+ s4 rettype)
{
- int cnt;
- u4 dummy;
- int i;
- typedesc *paramtype;
+ typedesc *paramtypes;
+ s4 i;
+
+ paramtypes = descr->paramtypes;
+
+ /* if method is non-static fill first block and skip `this' pointer */
+
+ i = 0;
if (obj) {
- /* the this pointer */
+ /* the `this' pointer */
blk[0].itemtype = TYPE_ADR;
blk[0].item = PTR_TO_ITEM(obj);
- cnt = 1;
+
+ paramtypes++;
+ i++;
}
- else
- cnt = 0;
- paramtype = descr->paramtypes;
- for (i=0; i<descr->paramcount; ++i,++cnt,++paramtype) {
- switch (paramtype->decltype) {
- /* primitive types */
+ for (; i < descr->paramcount; i++, paramtypes++) {
+ switch (paramtypes->decltype) {
+ /* primitive types */
case PRIMITIVETYPE_BYTE:
case PRIMITIVETYPE_CHAR:
case PRIMITIVETYPE_SHORT:
case PRIMITIVETYPE_BOOLEAN:
- blk[cnt].itemtype = TYPE_INT;
- blk[cnt].item = (u8) va_arg(data, int);
+ blk[i].itemtype = TYPE_INT;
+ blk[i].item = (s8) va_arg(data, s4);
break;
case PRIMITIVETYPE_INT:
- blk[cnt].itemtype = TYPE_INT;
- dummy = va_arg(data, u4);
- /*printf("fill_callblock: pos:%d, value:%d\n",cnt,dummy);*/
- blk[cnt].item = (u8) dummy;
+ blk[i].itemtype = TYPE_INT;
+ blk[i].item = (s8) va_arg(data, s4);
break;
case PRIMITIVETYPE_LONG:
- blk[cnt].itemtype = TYPE_LNG;
- blk[cnt].item = (u8) va_arg(data, jlong);
+ blk[i].itemtype = TYPE_LNG;
+ blk[i].item = (s8) va_arg(data, s8);
break;
case PRIMITIVETYPE_FLOAT:
- blk[cnt].itemtype = TYPE_FLT;
- *((jfloat *) (&blk[cnt].item)) = (jfloat) va_arg(data, jdouble);
+ blk[i].itemtype = TYPE_FLT;
+#if defined(__ALPHA__)
+ /* this keeps the assembler function much simpler */
+
+ *((jdouble *) (&blk[i].item)) = (jdouble) va_arg(data, jdouble);
+#else
+ *((jfloat *) (&blk[i].item)) = (jfloat) va_arg(data, jdouble);
+#endif
break;
case PRIMITIVETYPE_DOUBLE:
- blk[cnt].itemtype = TYPE_DBL;
- *((jdouble *) (&blk[cnt].item)) = (jdouble) va_arg(data, jdouble);
+ blk[i].itemtype = TYPE_DBL;
+ *((jdouble *) (&blk[i].item)) = (jdouble) va_arg(data, jdouble);
break;
case TYPE_ADR:
- blk[cnt].itemtype = TYPE_ADR;
- blk[cnt].item = PTR_TO_ITEM(va_arg(data, void*));
+ blk[i].itemtype = TYPE_ADR;
+ blk[i].item = PTR_TO_ITEM(va_arg(data, void*));
break;
}
}
- /*the standard doesn't say anything about return value checking, but it appears to be usefull*/
+ /* The standard doesn't say anything about return value checking, but it */
+ /* appears to be useful. */
+
if (rettype != descr->returntype.decltype)
log_text("\n====\nWarning call*Method called for function with wrong return type\n====");
}
+
/* XXX it could be considered if we should do typechecking here in the future */
-static bool fill_callblock_objA(void *obj, methoddesc *descr, jni_callblock blk[], java_objectarray* params,
- int *rettype)
+
+static bool fill_callblock_from_objectarray(void *obj, methoddesc *descr,
+ jni_callblock blk[],
+ java_objectarray *params)
{
- jobject param;
- int cnt;
- int cnts;
- typedesc *paramtype;
+ jobject param;
+ s4 paramcount;
+ typedesc *paramtypes;
+ classinfo *c;
+ s4 i;
+ s4 j;
+
+ paramcount = descr->paramcount;
+ paramtypes = descr->paramtypes;
+
+ /* if method is non-static fill first block and skip `this' pointer */
+
+ i = 0;
- /* determine number of parameters */
if (obj) {
/* this pointer */
blk[0].itemtype = TYPE_ADR;
blk[0].item = PTR_TO_ITEM(obj);
- cnt=1;
- } else {
- cnt = 0;
+
+ paramtypes++;
+ paramcount--;
+ i++;
}
- paramtype = descr->paramtypes;
- for (cnts=0; cnts < descr->paramcount; ++cnts,++cnt,++paramtype) {
- switch (paramtype->type) {
- /* primitive types */
- case TYPE_INT:
- case TYPE_LONG:
- case TYPE_FLOAT:
- case TYPE_DOUBLE:
-
- param = params->data[cnts];
- if (!param)
+ for (j = 0; j < paramcount; i++, j++, paramtypes++) {
+ switch (paramtypes->type) {
+ /* primitive types */
+ case TYPE_INT:
+ case TYPE_LONG:
+ case TYPE_FLOAT:
+ case TYPE_DOUBLE:
+ param = params->data[j];
+ if (!param)
+ goto illegal_arg;
+
+ /* internally used data type */
+ blk[i].itemtype = paramtypes->type;
+
+ /* convert the value according to its declared type */
+
+ c = param->vftbl->class;
+
+ switch (paramtypes->decltype) {
+ case PRIMITIVETYPE_BOOLEAN:
+ if (c == primitivetype_table[paramtypes->decltype].class_wrap)
+ blk[i].item = (s8) ((java_lang_Boolean *) param)->value;
+ else
goto illegal_arg;
+ break;
- /* internally used data type */
- blk[cnt].itemtype = paramtype->type;
-
- /* convert the value according to its declared type */
- switch (paramtype->decltype) {
- case PRIMITIVETYPE_BOOLEAN:
- if (param->vftbl->class == primitivetype_table[paramtype->decltype].class_wrap)
- blk[cnt].item = (u8) ((java_lang_Boolean *) param)->value;
- else
- goto illegal_arg;
- break;
- case PRIMITIVETYPE_BYTE:
- if (param->vftbl->class == primitivetype_table[paramtype->decltype].class_wrap)
- blk[cnt].item = (u8) ((java_lang_Byte *) param)->value;
- else
- goto illegal_arg;
- break;
- case PRIMITIVETYPE_CHAR:
- if (param->vftbl->class == primitivetype_table[paramtype->decltype].class_wrap)
- blk[cnt].item = (u8) ((java_lang_Character *) param)->value;
- else
- goto illegal_arg;
- break;
- case PRIMITIVETYPE_SHORT:
- if (param->vftbl->class == primitivetype_table[paramtype->decltype].class_wrap)
- blk[cnt].item = (u8) ((java_lang_Short *) param)->value;
- else if (param->vftbl->class == primitivetype_table[PRIMITIVETYPE_BYTE].class_wrap)
- blk[cnt].item = (u8) ((java_lang_Byte *) param)->value;
- else
- goto illegal_arg;
- break;
- case PRIMITIVETYPE_INT:
- if (param->vftbl->class == primitivetype_table[paramtype->decltype].class_wrap)
- blk[cnt].item = (u8) ((java_lang_Integer *) param)->value;
- else if (param->vftbl->class == primitivetype_table[PRIMITIVETYPE_SHORT].class_wrap)
- blk[cnt].item = (u8) ((java_lang_Short *) param)->value;
- else if (param->vftbl->class == primitivetype_table[PRIMITIVETYPE_BYTE].class_wrap)
- blk[cnt].item = (u8) ((java_lang_Byte *) param)->value;
- else
- goto illegal_arg;
- break;
- case PRIMITIVETYPE_LONG:
- if (param->vftbl->class == primitivetype_table[paramtype->decltype].class_wrap)
- blk[cnt].item = (u8) ((java_lang_Long *) param)->value;
- else if (param->vftbl->class == primitivetype_table[PRIMITIVETYPE_INT].class_wrap)
- blk[cnt].item = (u8) ((java_lang_Integer *) param)->value;
- else if (param->vftbl->class == primitivetype_table[PRIMITIVETYPE_SHORT].class_wrap)
- blk[cnt].item = (u8) ((java_lang_Short *) param)->value;
- else if (param->vftbl->class == primitivetype_table[PRIMITIVETYPE_BYTE].class_wrap)
- blk[cnt].item = (u8) ((java_lang_Byte *) param)->value;
- else
- goto illegal_arg;
- break;
- case PRIMITIVETYPE_FLOAT:
- if (param->vftbl->class == primitivetype_table[paramtype->decltype].class_wrap)
- *((jfloat *) (&blk[cnt].item)) = (jfloat) ((java_lang_Float *) param)->value;
- else
- goto illegal_arg;
- break;
- case PRIMITIVETYPE_DOUBLE:
- if (param->vftbl->class == primitivetype_table[paramtype->decltype].class_wrap)
- *((jdouble *) (&blk[cnt].item)) = (jdouble) ((java_lang_Float *) param)->value;
- else if (param->vftbl->class == primitivetype_table[PRIMITIVETYPE_FLOAT].class_wrap)
- *((jfloat *) (&blk[cnt].item)) = (jfloat) ((java_lang_Float *) param)->value;
- else
- goto illegal_arg;
- break;
- default:
- goto illegal_arg;
- } /* end declared type switch */
+ case PRIMITIVETYPE_BYTE:
+ if (c == primitivetype_table[paramtypes->decltype].class_wrap)
+ blk[i].item = (s8) ((java_lang_Byte *) param)->value;
+ else
+ goto illegal_arg;
break;
+
+ case PRIMITIVETYPE_CHAR:
+ if (c == primitivetype_table[paramtypes->decltype].class_wrap)
+ blk[i].item = (s8) ((java_lang_Character *) param)->value;
+ else
+ goto illegal_arg;
+ break;
+
+ case PRIMITIVETYPE_SHORT:
+ if (c == primitivetype_table[paramtypes->decltype].class_wrap)
+ blk[i].item = (s8) ((java_lang_Short *) param)->value;
+ else if (c == primitivetype_table[PRIMITIVETYPE_BYTE].class_wrap)
+ blk[i].item = (s8) ((java_lang_Byte *) param)->value;
+ else
+ goto illegal_arg;
+ break;
+
+ case PRIMITIVETYPE_INT:
+ if (c == primitivetype_table[paramtypes->decltype].class_wrap)
+ blk[i].item = (s8) ((java_lang_Integer *) param)->value;
+ else if (c == primitivetype_table[PRIMITIVETYPE_SHORT].class_wrap)
+ blk[i].item = (s8) ((java_lang_Short *) param)->value;
+ else if (c == primitivetype_table[PRIMITIVETYPE_BYTE].class_wrap)
+ blk[i].item = (s8) ((java_lang_Byte *) param)->value;
+ else
+ goto illegal_arg;
+ break;
+
+ case PRIMITIVETYPE_LONG:
+ if (c == primitivetype_table[paramtypes->decltype].class_wrap)
+ blk[i].item = (s8) ((java_lang_Long *) param)->value;
+ else if (c == primitivetype_table[PRIMITIVETYPE_INT].class_wrap)
+ blk[i].item = (s8) ((java_lang_Integer *) param)->value;
+ else if (c == primitivetype_table[PRIMITIVETYPE_SHORT].class_wrap)
+ blk[i].item = (s8) ((java_lang_Short *) param)->value;
+ else if (c == primitivetype_table[PRIMITIVETYPE_BYTE].class_wrap)
+ blk[i].item = (s8) ((java_lang_Byte *) param)->value;
+ else
+ goto illegal_arg;
+ break;
+
+ case PRIMITIVETYPE_FLOAT:
+ if (c == primitivetype_table[paramtypes->decltype].class_wrap)
+ *((jfloat *) (&blk[i].item)) = (jfloat) ((java_lang_Float *) param)->value;
+ else
+ goto illegal_arg;
+ break;
+
+ case PRIMITIVETYPE_DOUBLE:
+ if (c == primitivetype_table[paramtypes->decltype].class_wrap)
+ *((jdouble *) (&blk[i].item)) = (jdouble) ((java_lang_Float *) param)->value;
+ else if (c == primitivetype_table[PRIMITIVETYPE_FLOAT].class_wrap)
+ *((jfloat *) (&blk[i].item)) = (jfloat) ((java_lang_Float *) param)->value;
+ else
+ goto illegal_arg;
+ break;
+
+ default:
+ goto illegal_arg;
+ } /* end declared type switch */
+ break;
case TYPE_ADDRESS:
- {
- classinfo *cls;
-
- if (!resolve_class_from_typedesc(paramtype,true,&cls))
- return false; /* exception */
- if (params->data[cnts] != 0) {
- if (paramtype->arraydim > 0) {
- if (!builtin_arrayinstanceof(params->data[cnts], cls->vftbl))
- goto illegal_arg;
- }
- else {
- if (!builtin_instanceof(params->data[cnts], cls))
- goto illegal_arg;
- }
+ if (!resolve_class_from_typedesc(paramtypes, true, true, &c))
+ return false;
+
+ if (params->data[j] != 0) {
+ if (paramtypes->arraydim > 0) {
+ if (!builtin_arrayinstanceof(params->data[j], c->vftbl))
+ goto illegal_arg;
+
+ } else {
+ if (!builtin_instanceof(params->data[j], c))
+ goto illegal_arg;
}
- blk[cnt].itemtype = TYPE_ADR;
- blk[cnt].item = PTR_TO_ITEM(params->data[cnts]);
}
+ blk[i].itemtype = TYPE_ADR;
+ blk[i].item = PTR_TO_ITEM(params->data[j]);
break;
default:
} /* end param loop */
- if (rettype)
- *rettype = descr->returntype.decltype;
+/* if (rettype) */
+/* *rettype = descr->returntype.decltype; */
+
return true;
illegal_arg:
}
-static jmethodID get_virtual(jobject obj,jmethodID methodID) {
- if (obj->vftbl->class==methodID->class) return methodID;
- return class_resolvemethod (obj->vftbl->class, methodID->name, methodID->descriptor);
+static jmethodID get_virtual(jobject obj, jmethodID methodID)
+{
+ if (obj->vftbl->class == methodID->class)
+ return methodID;
+
+ return class_resolvemethod(obj->vftbl->class, methodID->name,
+ methodID->descriptor);
}
-static jmethodID get_nonvirtual(jclass clazz,jmethodID methodID) {
- if (clazz==methodID->class) return methodID;
-/*class_resolvemethod -> classfindmethod? (JOWENN)*/
- return class_resolvemethod (clazz, methodID->name, methodID->descriptor);
+static jmethodID get_nonvirtual(jclass clazz, jmethodID methodID)
+{
+ if (clazz == methodID->class)
+ return methodID;
+
+ /* class_resolvemethod -> classfindmethod? (JOWENN) */
+ return class_resolvemethod(clazz, methodID->name, methodID->descriptor);
}
-static jobject callObjectMethod (jobject obj, jmethodID methodID, va_list args)
+static jobject callObjectMethod(jobject obj, jmethodID methodID, va_list args)
{
int argcount;
jni_callblock *blk;
blk = MNEW(jni_callblock, /*4 */argcount+2);
- fill_callblock(obj, methodID->parseddesc, blk, args, TYPE_ADR);
+ fill_callblock_from_vargs(obj, methodID->parseddesc, blk, args, TYPE_ADR);
/* printf("parameter: obj: %p",blk[0].item); */
STATS(jnicallXmethodnvokation();)
ret = asm_calljavafunction2(methodID,
blk = MNEW(jni_callblock, /*4 */ argcount+2);
- fill_callblock(obj, methodID->parseddesc, blk, args, retType);
+ fill_callblock_from_vargs(obj, methodID->parseddesc, blk, args, retType);
/* printf("parameter: obj: %p",blk[0].item); */
STATS(jnicallXmethodnvokation();)
blk = MNEW(jni_callblock,/* 4 */argcount+2);
- fill_callblock(obj, methodID->parseddesc, blk, args, TYPE_LNG);
+ fill_callblock_from_vargs(obj, methodID->parseddesc, blk, args, TYPE_LNG);
/* printf("parameter: obj: %p",blk[0].item); */
STATS(jnicallXmethodnvokation();)
blk = MNEW(jni_callblock, /*4 */ argcount+2);
- fill_callblock(obj, methodID->parseddesc, blk, args, retType);
+ fill_callblock_from_vargs(obj, methodID->parseddesc, blk, args, retType);
/* printf("parameter: obj: %p",blk[0].item); */
STATS(jnicallXmethodnvokation();)
jint GetVersion(JNIEnv *env)
{
- /* GNU classpath currently supports JNI 1.2 */
STATS(jniinvokation();)
- return JNI_VERSION_1_2;
+
+ /* just say we support JNI 1.4 */
+
+ return JNI_VERSION_1_4;
}
*******************************************************************************/
-jclass DefineClass(JNIEnv *env, const char *name, jobject loader, const jbyte *buf, jsize bufLen)
+jclass DefineClass(JNIEnv *env, const char *name, jobject loader,
+ const jbyte *buf, jsize bufLen)
{
- jclass c;
+ java_lang_ClassLoader *cl;
+ java_lang_String *s;
+ java_bytearray *ba;
+ jclass c;
+
STATS(jniinvokation();)
- c = (jclass) Java_java_lang_VMClassLoader_defineClass(env,
- NULL,
- (java_lang_ClassLoader *) loader,
- javastring_new_char(name),
- (java_bytearray *) buf,
- 0,
- bufLen,
- NULL);
+ cl = (java_lang_ClassLoader *) loader;
+ s = javastring_new_char(name);
+ ba = (java_bytearray *) buf;
+
+ c = (jclass) Java_java_lang_VMClassLoader_defineClass(env, NULL, cl, s, ba,
+ 0, bufLen, NULL);
return c;
}
jclass FindClass(JNIEnv *env, const char *name)
{
- classinfo *c = NULL;
+ utf *u;
+ classinfo *c;
+ java_objectheader *cl;
+
STATS(jniinvokation();)
-
- if (!load_class_bootstrap(utf_new_char_classname((char *) name),&c) || !link_class(c)) {
+
+ u = utf_new_char_classname((char *) name);
+
+ /* check stacktrace for classloader, if one found use it, otherwise use */
+ /* the system classloader */
+
+#if defined(__I386__) || defined(__X86_64__) || defined(__ALPHA__)
+ cl = cacao_currentClassLoader();
+#else
+ cl = NULL;
+#endif
+
+ if (!(c = load_class_from_classloader(u, cl)))
+ return NULL;
+
+ if (!link_class(c))
return NULL;
- }
use_class_as_object(c);
}
-/*******************************************************************************
+/* FromReflectedMethod *********************************************************
- converts java.lang.reflect.Method or
- java.lang.reflect.Constructor object to a method ID
+ Converts java.lang.reflect.Method or java.lang.reflect.Constructor
+ object to a method ID.
*******************************************************************************/
-jmethodID FromReflectedMethod(JNIEnv* env, jobject method_or_constr)
+jmethodID FromReflectedMethod(JNIEnv *env, jobject method)
{
- struct methodinfo *mi;
- classinfo *c;
- s4 slot;
+ methodinfo *mi;
+ classinfo *c;
+ s4 slot;
STATS(jniinvokation();)
- if (method_or_constr==0) return 0;
+ if (method == NULL)
+ return NULL;
- if (builtin_instanceof(method_or_constr, class_java_lang_reflect_Method))
- {
- java_lang_reflect_Method *rm=(java_lang_reflect_Method*) method_or_constr;
- slot=rm->slot;
- c= (classinfo *) (rm->declaringClass);
- }
- else if (builtin_instanceof(method_or_constr, class_java_lang_reflect_Constructor))
- {
- java_lang_reflect_Constructor *rc=(java_lang_reflect_Constructor*) method_or_constr;
- slot=rc->slot;
- c= (classinfo*) (rc->clazz);
+ if (builtin_instanceof(method, class_java_lang_reflect_Method)) {
+ java_lang_reflect_Method *rm;
+
+ rm = (java_lang_reflect_Method *) method;
+ c = (classinfo *) (rm->declaringClass);
+ slot = rm->slot;
+
+ } else if (builtin_instanceof(method, class_java_lang_reflect_Constructor)) {
+ java_lang_reflect_Constructor *rc;
+
+ rc = (java_lang_reflect_Constructor *) method;
+ c = (classinfo *) (rc->clazz);
+ slot = rc->slot;
+
+ } else
+ return NULL;
+
+ if ((slot < 0) || (slot >= c->methodscount)) {
+ /* this usually means a severe internal cacao error or somebody
+ tempered around with the reflected method */
+ log_text("error illegal slot for method in class(FromReflectedMethod)");
+ assert(0);
}
- else return 0;
+ mi = &(c->methods[slot]);
- printf ("slot %d,methodscount %d\n",slot,c->methodscount);
- if ((slot < 0) || (slot >= c->methodscount)) {
- /*this usually means a severe internal cacao error or somebody
- tempered around with the reflected method*/
- panic("error illegal slot for method in class(FromReflectedMethod)");
- }
- mi = &(c->methods[slot]);
return mi;
}
void DeleteLocalRef(JNIEnv *env, jobject localRef)
{
- log_text("JNI-Call: DeleteLocalRef: IMPLEMENT ME!");
STATS(jniinvokation();)
+ log_text("JNI-Call: DeleteLocalRef: IMPLEMENT ME!");
}
if ( (f->slot<0) || (f->slot>=c->fieldscount)) {
/*this usually means a severe internal cacao error or somebody
tempered around with the reflected method*/
- panic("error illegal slot for field in class(FromReflectedField)");
+ log_text("error illegal slot for field in class(FromReflectedField)");
+ assert(0);
}
fid=&(c->fields[f->slot]);
return fid;
*exceptionptr =
new_exception_message(string_java_lang_NoSuchMethodError, name);
- return 0;
+ return NULL;
}
return m;
jfieldID GetFieldID (JNIEnv *env, jclass clazz, const char *name, const char *sig)
{
jfieldID f;
+
STATS(jniinvokation();)
/* log_text("========================= searching for:");
log_text("sig:");
log_text(sig);
- panic("setfield_critical failed");
+ log_text("setfield_critical failed");
+ assert(0);
}
return id;
}
}
+/* String Operations **********************************************************/
+
/* NewString *******************************************************************
Create new java.lang.String object from an array of Unicode
java_lang_String *s;
java_chararray *a;
u4 i;
+
STATS(jniinvokation();)
s = (java_lang_String *) builtin_new(class_java_lang_String);
}
-static char emptyString[]="";
static jchar emptyStringJ[]={0,0};
-/******************* returns the length of a Java string ***************************/
+/* GetStringLength *************************************************************
+
+ Returns the length (the count of Unicode characters) of a Java
+ string.
+
+*******************************************************************************/
-jsize GetStringLength (JNIEnv *env, jstring str)
+jsize GetStringLength(JNIEnv *env, jstring str)
{
- return ((java_lang_String*) str)->count;
+ return ((java_lang_String *) str)->count;
}
/******************** convertes javastring to u2-array ****************************/
-u2 *javastring_tou2 (jstring so)
+u2 *javastring_tou2(jstring so)
{
- java_lang_String *s = (java_lang_String*) so;
- java_chararray *a;
- u4 i;
- u2 *stringbuffer;
+ java_lang_String *s;
+ java_chararray *a;
+ u2 *stringbuffer;
+ u4 i;
+
STATS(jniinvokation();)
- if (!s) return NULL;
+ s = (java_lang_String *) so;
+
+ if (!s)
+ return NULL;
a = s->value;
- if (!a) return NULL;
+
+ if (!a)
+ return NULL;
/* allocate memory */
- stringbuffer = MNEW( u2 , s->count + 1 );
+
+ stringbuffer = MNEW(u2, s->count + 1);
/* copy text */
- for (i=0; i<s->count; i++) stringbuffer[i] = a->data[s->offset+i];
+
+ for (i = 0; i < s->count; i++)
+ stringbuffer[i] = a->data[s->offset + i];
/* terminate string */
+
stringbuffer[i] = '\0';
return stringbuffer;
}
-/********* returns a pointer to an array of Unicode characters of the string *******/
-const jchar *GetStringChars (JNIEnv *env, jstring str, jboolean *isCopy)
+/* GetStringChars **************************************************************
+
+ Returns a pointer to the array of Unicode characters of the
+ string. This pointer is valid until ReleaseStringchars() is called.
+
+*******************************************************************************/
+
+const jchar *GetStringChars(JNIEnv *env, jstring str, jboolean *isCopy)
{
- jchar *jc=javastring_tou2(str);
+ jchar *jc;
+
STATS(jniinvokation();)
+ jc = javastring_tou2(str);
+
if (jc) {
- if (isCopy) *isCopy=JNI_TRUE;
+ if (isCopy)
+ *isCopy = JNI_TRUE;
+
return jc;
}
- if (isCopy) *isCopy=JNI_TRUE;
+
+ if (isCopy)
+ *isCopy = JNI_TRUE;
+
return emptyStringJ;
}
-/**************** native code no longer needs access to chars **********************/
-void ReleaseStringChars (JNIEnv *env, jstring str, const jchar *chars)
+/* ReleaseStringChars **********************************************************
+
+ Informs the VM that the native code no longer needs access to
+ chars. The chars argument is a pointer obtained from string using
+ GetStringChars().
+
+*******************************************************************************/
+
+void ReleaseStringChars(JNIEnv *env, jstring str, const jchar *chars)
{
STATS(jniinvokation();)
- if (chars==emptyStringJ) return;
- MFREE(((jchar*) chars),jchar,((java_lang_String*) str)->count+1);
+
+ if (chars == emptyStringJ)
+ return;
+
+ MFREE(((jchar *) chars), jchar, ((java_lang_String *) str)->count + 1);
}
}
-/************ converts a Javastring to an array of UTF-8 characters ****************/
+/* GetStringUTFChars ***********************************************************
-const char* GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy)
+ Returns a pointer to an array of UTF-8 characters of the
+ string. This array is valid until it is released by
+ ReleaseStringUTFChars().
+
+*******************************************************************************/
+
+const char *GetStringUTFChars(JNIEnv *env, jstring string, jboolean *isCopy)
{
- utf *u;
+ utf *u;
STATS(jniinvokation();)
- u = javastring_toutf((java_lang_String *) string, false);
+ if (!string)
+ return "";
- if (isCopy)
- *isCopy = JNI_FALSE;
+ if (isCopy)
+ *isCopy = JNI_TRUE;
- if (u)
+ u = javastring_toutf((java_lang_String *) string, false);
+
+ if (u)
return u->text;
- return emptyString;
-
+ return "";
}
-/***************** native code no longer needs access to utf ***********************/
+/* ReleaseStringUTFChars *******************************************************
-void ReleaseStringUTFChars (JNIEnv *env, jstring str, const char* chars)
+ Informs the VM that the native code no longer needs access to
+ utf. The utf argument is a pointer derived from string using
+ GetStringUTFChars().
+
+*******************************************************************************/
+
+void ReleaseStringUTFChars(JNIEnv *env, jstring string, const char *utf)
{
STATS(jniinvokation();)
- /*we don't release utf chars right now, perhaps that should be done later. Since there is always one reference
- the garbage collector will never get them*/
- /*
- log_text("JNI-Call: ReleaseStringUTFChars");
- utf_display(utf_new_char(chars));
- */
+ /* XXX we don't release utf chars right now, perhaps that should be done
+ later. Since there is always one reference the garbage collector will
+ never get them */
}
-/************************** array operations ***************************************/
+
+/* Array Operations ***********************************************************/
+
+/* GetArrayLength **************************************************************
+
+ Returns the number of elements in the array.
+
+*******************************************************************************/
jsize GetArrayLength(JNIEnv *env, jarray array)
{
STATS(jniinvokation();)
- return array->size;
+ return array->size;
}
}
-jboolean * GetBooleanArrayElements (JNIEnv *env, jbooleanArray array, jboolean *isCopy)
+/* Get<PrimitiveType>ArrayElements *********************************************
+
+ A family of functions that returns the body of the primitive array.
+
+*******************************************************************************/
+
+jboolean *GetBooleanArrayElements(JNIEnv *env, jbooleanArray array,
+ jboolean *isCopy)
{
STATS(jniinvokation();)
- if (isCopy) *isCopy = JNI_FALSE;
+
+ if (isCopy)
+ *isCopy = JNI_FALSE;
+
return array->data;
}
-jbyte * GetByteArrayElements (JNIEnv *env, jbyteArray array, jboolean *isCopy)
+jbyte *GetByteArrayElements(JNIEnv *env, jbyteArray array, jboolean *isCopy)
{
STATS(jniinvokation();)
- if (isCopy) *isCopy = JNI_FALSE;
+
+ if (isCopy)
+ *isCopy = JNI_FALSE;
+
return array->data;
}
-jchar * GetCharArrayElements (JNIEnv *env, jcharArray array, jboolean *isCopy)
+jchar *GetCharArrayElements(JNIEnv *env, jcharArray array, jboolean *isCopy)
{
STATS(jniinvokation();)
- if (isCopy) *isCopy = JNI_FALSE;
+
+ if (isCopy)
+ *isCopy = JNI_FALSE;
+
return array->data;
}
-jshort * GetShortArrayElements (JNIEnv *env, jshortArray array, jboolean *isCopy)
+jshort *GetShortArrayElements(JNIEnv *env, jshortArray array, jboolean *isCopy)
{
STATS(jniinvokation();)
- if (isCopy) *isCopy = JNI_FALSE;
+
+ if (isCopy)
+ *isCopy = JNI_FALSE;
+
return array->data;
}
-jint * GetIntArrayElements (JNIEnv *env, jintArray array, jboolean *isCopy)
+jint *GetIntArrayElements(JNIEnv *env, jintArray array, jboolean *isCopy)
{
STATS(jniinvokation();)
- if (isCopy) *isCopy = JNI_FALSE;
+
+ if (isCopy)
+ *isCopy = JNI_FALSE;
+
return array->data;
}
-jlong * GetLongArrayElements (JNIEnv *env, jlongArray array, jboolean *isCopy)
+jlong *GetLongArrayElements(JNIEnv *env, jlongArray array, jboolean *isCopy)
{
STATS(jniinvokation();)
- if (isCopy) *isCopy = JNI_FALSE;
+
+ if (isCopy)
+ *isCopy = JNI_FALSE;
+
return array->data;
}
-jfloat * GetFloatArrayElements (JNIEnv *env, jfloatArray array, jboolean *isCopy)
+jfloat *GetFloatArrayElements(JNIEnv *env, jfloatArray array, jboolean *isCopy)
{
STATS(jniinvokation();)
- if (isCopy) *isCopy = JNI_FALSE;
+
+ if (isCopy)
+ *isCopy = JNI_FALSE;
+
return array->data;
}
-jdouble * GetDoubleArrayElements (JNIEnv *env, jdoubleArray array, jboolean *isCopy)
+jdouble *GetDoubleArrayElements(JNIEnv *env, jdoubleArray array,
+ jboolean *isCopy)
{
STATS(jniinvokation();)
- if (isCopy) *isCopy = JNI_FALSE;
+
+ if (isCopy)
+ *isCopy = JNI_FALSE;
+
return array->data;
}
+/* Release<PrimitiveType>ArrayElements *****************************************
+
+ A family of functions that informs the VM that the native code no
+ longer needs access to elems. The elems argument is a pointer
+ derived from array using the corresponding
+ Get<PrimitiveType>ArrayElements() function. If necessary, this
+ function copies back all changes made to elems to the original
+ array.
-void ReleaseBooleanArrayElements (JNIEnv *env, jbooleanArray array, jboolean *elems, jint mode)
+*******************************************************************************/
+
+void ReleaseBooleanArrayElements(JNIEnv *env, jbooleanArray array,
+ jboolean *elems, jint mode)
{
STATS(jniinvokation();)
- /* empty */
+
+ if (elems != array->data) {
+ switch (mode) {
+ case JNI_COMMIT:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ break;
+ case 0:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ /* XXX TWISTI how should it be freed? */
+ break;
+ case JNI_ABORT:
+ /* XXX TWISTI how should it be freed? */
+ break;
+ }
+ }
}
-void ReleaseByteArrayElements (JNIEnv *env, jbyteArray array, jbyte *elems, jint mode)
+void ReleaseByteArrayElements(JNIEnv *env, jbyteArray array, jbyte *elems,
+ jint mode)
{
STATS(jniinvokation();)
- /* empty */
+
+ if (elems != array->data) {
+ switch (mode) {
+ case JNI_COMMIT:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ break;
+ case 0:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ /* XXX TWISTI how should it be freed? */
+ break;
+ case JNI_ABORT:
+ /* XXX TWISTI how should it be freed? */
+ break;
+ }
+ }
}
-void ReleaseCharArrayElements (JNIEnv *env, jcharArray array, jchar *elems, jint mode)
+void ReleaseCharArrayElements(JNIEnv *env, jcharArray array, jchar *elems,
+ jint mode)
{
- /* empty */
+ STATS(jniinvokation();)
+
+ if (elems != array->data) {
+ switch (mode) {
+ case JNI_COMMIT:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ break;
+ case 0:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ /* XXX TWISTI how should it be freed? */
+ break;
+ case JNI_ABORT:
+ /* XXX TWISTI how should it be freed? */
+ break;
+ }
+ }
}
-void ReleaseShortArrayElements (JNIEnv *env, jshortArray array, jshort *elems, jint mode)
+void ReleaseShortArrayElements(JNIEnv *env, jshortArray array, jshort *elems,
+ jint mode)
{
STATS(jniinvokation();)
- /* empty */
+
+ if (elems != array->data) {
+ switch (mode) {
+ case JNI_COMMIT:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ break;
+ case 0:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ /* XXX TWISTI how should it be freed? */
+ break;
+ case JNI_ABORT:
+ /* XXX TWISTI how should it be freed? */
+ break;
+ }
+ }
}
-void ReleaseIntArrayElements (JNIEnv *env, jintArray array, jint *elems, jint mode)
+void ReleaseIntArrayElements(JNIEnv *env, jintArray array, jint *elems,
+ jint mode)
{
STATS(jniinvokation();)
- /* empty */
+
+ if (elems != array->data) {
+ switch (mode) {
+ case JNI_COMMIT:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ break;
+ case 0:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ /* XXX TWISTI how should it be freed? */
+ break;
+ case JNI_ABORT:
+ /* XXX TWISTI how should it be freed? */
+ break;
+ }
+ }
}
-void ReleaseLongArrayElements (JNIEnv *env, jlongArray array, jlong *elems, jint mode)
+void ReleaseLongArrayElements(JNIEnv *env, jlongArray array, jlong *elems,
+ jint mode)
{
STATS(jniinvokation();)
- /* empty */
+
+ if (elems != array->data) {
+ switch (mode) {
+ case JNI_COMMIT:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ break;
+ case 0:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ /* XXX TWISTI how should it be freed? */
+ break;
+ case JNI_ABORT:
+ /* XXX TWISTI how should it be freed? */
+ break;
+ }
+ }
}
-void ReleaseFloatArrayElements (JNIEnv *env, jfloatArray array, jfloat *elems, jint mode)
+void ReleaseFloatArrayElements(JNIEnv *env, jfloatArray array, jfloat *elems,
+ jint mode)
{
STATS(jniinvokation();)
- /* empty */
+
+ if (elems != array->data) {
+ switch (mode) {
+ case JNI_COMMIT:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ break;
+ case 0:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ /* XXX TWISTI how should it be freed? */
+ break;
+ case JNI_ABORT:
+ /* XXX TWISTI how should it be freed? */
+ break;
+ }
+ }
}
-void ReleaseDoubleArrayElements (JNIEnv *env, jdoubleArray array, jdouble *elems, jint mode)
+void ReleaseDoubleArrayElements(JNIEnv *env, jdoubleArray array,
+ jdouble *elems, jint mode)
{
STATS(jniinvokation();)
- /* empty */
+
+ if (elems != array->data) {
+ switch (mode) {
+ case JNI_COMMIT:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ break;
+ case 0:
+ MCOPY(array->data, elems, jboolean, array->header.size);
+ /* XXX TWISTI how should it be freed? */
+ break;
+ case JNI_ABORT:
+ /* XXX TWISTI how should it be freed? */
+ break;
+ }
+ }
}
-void GetBooleanArrayRegion(JNIEnv* env, jbooleanArray array, jsize start, jsize len, jboolean *buf)
+/* Get<PrimitiveType>ArrayRegion **********************************************
+
+ A family of functions that copies a region of a primitive array
+ into a buffer.
+
+*******************************************************************************/
+
+void GetBooleanArrayRegion(JNIEnv *env, jbooleanArray array, jsize start,
+ jsize len, jboolean *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(buf, &array->data[start], len * sizeof(array->data[0]));
+ MCOPY(buf, &array->data[start], jboolean, len);
}
-void GetByteArrayRegion(JNIEnv* env, jbyteArray array, jsize start, jsize len, jbyte *buf)
+void GetByteArrayRegion(JNIEnv *env, jbyteArray array, jsize start, jsize len,
+ jbyte *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(buf, &array->data[start], len * sizeof(array->data[0]));
+ MCOPY(buf, &array->data[start], jbyte, len);
}
-void GetCharArrayRegion(JNIEnv* env, jcharArray array, jsize start, jsize len, jchar *buf)
+void GetCharArrayRegion(JNIEnv *env, jcharArray array, jsize start, jsize len,
+ jchar *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(buf, &array->data[start], len * sizeof(array->data[0]));
+ MCOPY(buf, &array->data[start], jchar, len);
}
-void GetShortArrayRegion(JNIEnv* env, jshortArray array, jsize start, jsize len, jshort *buf)
+void GetShortArrayRegion(JNIEnv *env, jshortArray array, jsize start,
+ jsize len, jshort *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(buf, &array->data[start], len * sizeof(array->data[0]));
+ MCOPY(buf, &array->data[start], jshort, len);
}
-void GetIntArrayRegion(JNIEnv* env, jintArray array, jsize start, jsize len, jint *buf)
+void GetIntArrayRegion(JNIEnv *env, jintArray array, jsize start, jsize len,
+ jint *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(buf, &array->data[start], len * sizeof(array->data[0]));
+ MCOPY(buf, &array->data[start], jint, len);
}
-void GetLongArrayRegion(JNIEnv* env, jlongArray array, jsize start, jsize len, jlong *buf)
+void GetLongArrayRegion(JNIEnv *env, jlongArray array, jsize start, jsize len,
+ jlong *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(buf, &array->data[start], len * sizeof(array->data[0]));
+ MCOPY(buf, &array->data[start], jlong, len);
}
-void GetFloatArrayRegion(JNIEnv* env, jfloatArray array, jsize start, jsize len, jfloat *buf)
+void GetFloatArrayRegion(JNIEnv *env, jfloatArray array, jsize start,
+ jsize len, jfloat *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(buf, &array->data[start], len * sizeof(array->data[0]));
+ MCOPY(buf, &array->data[start], jfloat, len);
}
-void GetDoubleArrayRegion(JNIEnv* env, jdoubleArray array, jsize start, jsize len, jdouble *buf)
+void GetDoubleArrayRegion(JNIEnv *env, jdoubleArray array, jsize start,
+ jsize len, jdouble *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start+len>array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(buf, &array->data[start], len * sizeof(array->data[0]));
+ MCOPY(buf, &array->data[start], jdouble, len);
}
-void SetBooleanArrayRegion(JNIEnv* env, jbooleanArray array, jsize start, jsize len, jboolean *buf)
+/* Set<PrimitiveType>ArrayRegion **********************************************
+
+ A family of functions that copies back a region of a primitive
+ array from a buffer.
+
+*******************************************************************************/
+
+void SetBooleanArrayRegion(JNIEnv *env, jbooleanArray array, jsize start,
+ jsize len, jboolean *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(&array->data[start], buf, len * sizeof(array->data[0]));
+ MCOPY(&array->data[start], buf, jboolean, len);
}
-void SetByteArrayRegion(JNIEnv* env, jbyteArray array, jsize start, jsize len, jbyte *buf)
+void SetByteArrayRegion(JNIEnv *env, jbyteArray array, jsize start, jsize len,
+ jbyte *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(&array->data[start], buf, len * sizeof(array->data[0]));
+ MCOPY(&array->data[start], buf, jbyte, len);
}
-void SetCharArrayRegion(JNIEnv* env, jcharArray array, jsize start, jsize len, jchar *buf)
+void SetCharArrayRegion(JNIEnv *env, jcharArray array, jsize start, jsize len,
+ jchar *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(&array->data[start], buf, len * sizeof(array->data[0]));
+ MCOPY(&array->data[start], buf, jchar, len);
}
-void SetShortArrayRegion(JNIEnv* env, jshortArray array, jsize start, jsize len, jshort *buf)
+void SetShortArrayRegion(JNIEnv *env, jshortArray array, jsize start,
+ jsize len, jshort *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(&array->data[start], buf, len * sizeof(array->data[0]));
+ MCOPY(&array->data[start], buf, jshort, len);
}
-void SetIntArrayRegion(JNIEnv* env, jintArray array, jsize start, jsize len, jint *buf)
+void SetIntArrayRegion(JNIEnv *env, jintArray array, jsize start, jsize len,
+ jint *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(&array->data[start], buf, len * sizeof(array->data[0]));
+ MCOPY(&array->data[start], buf, jint, len);
}
-void SetLongArrayRegion(JNIEnv* env, jlongArray array, jsize start, jsize len, jlong *buf)
+void SetLongArrayRegion(JNIEnv* env, jlongArray array, jsize start, jsize len,
+ jlong *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(&array->data[start], buf, len * sizeof(array->data[0]));
+ MCOPY(&array->data[start], buf, jlong, len);
}
-void SetFloatArrayRegion(JNIEnv* env, jfloatArray array, jsize start, jsize len, jfloat *buf)
+void SetFloatArrayRegion(JNIEnv *env, jfloatArray array, jsize start,
+ jsize len, jfloat *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(&array->data[start], buf, len * sizeof(array->data[0]));
+ MCOPY(&array->data[start], buf, jfloat, len);
}
-void SetDoubleArrayRegion(JNIEnv* env, jdoubleArray array, jsize start, jsize len, jdouble *buf)
+void SetDoubleArrayRegion(JNIEnv *env, jdoubleArray array, jsize start,
+ jsize len, jdouble *buf)
{
STATS(jniinvokation();)
+
if (start < 0 || len < 0 || start + len > array->header.size)
- *exceptionptr = new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
+ *exceptionptr =
+ new_exception(string_java_lang_ArrayIndexOutOfBoundsException);
else
- memcpy(&array->data[start], buf, len * sizeof(array->data[0]));
+ MCOPY(&array->data[start], buf, jdouble, len);
}
-jint RegisterNatives (JNIEnv* env, jclass clazz, const JNINativeMethod *methods, jint nMethods)
+/* Registering Native Methods *************************************************/
+
+/* RegisterNatives *************************************************************
+
+ Registers native methods with the class specified by the clazz
+ argument. The methods parameter specifies an array of
+ JNINativeMethod structures that contain the names, signatures, and
+ function pointers of the native methods. The nMethods parameter
+ specifies the number of native methods in the array.
+
+*******************************************************************************/
+
+jint RegisterNatives(JNIEnv *env, jclass clazz, const JNINativeMethod *methods,
+ jint nMethods)
{
STATS(jniinvokation();)
- log_text("JNI-Call: RegisterNatives");
+
+ log_text("JNI-Call: RegisterNatives: IMPLEMENT ME!!!");
+
return 0;
}
-jint UnregisterNatives (JNIEnv* env, jclass clazz)
+/* UnregisterNatives ***********************************************************
+
+ Unregisters native methods of a class. The class goes back to the
+ state before it was linked or registered with its native method
+ functions.
+
+ This function should not be used in normal native code. Instead, it
+ provides special programs a way to reload and relink native
+ libraries.
+
+*******************************************************************************/
+
+jint UnregisterNatives(JNIEnv *env, jclass clazz)
{
STATS(jniinvokation();)
- log_text("JNI-Call: UnregisterNatives");
+
+ /* XXX TWISTI hmm, maybe we should not support that (like kaffe) */
+
+ log_text("JNI-Call: UnregisterNatives: IMPLEMENT ME!!!");
+
return 0;
}
}
-/************** obtain direct pointer to array elements ***********************/
+/* GetPrimitiveArrayCritical ***************************************************
+
+ Obtain a direct pointer to array elements.
+
+*******************************************************************************/
-void * GetPrimitiveArrayCritical (JNIEnv* env, jarray array, jboolean *isCopy)
+void *GetPrimitiveArrayCritical(JNIEnv *env, jarray array, jboolean *isCopy)
{
+ java_objectheader *s;
+ arraydescriptor *desc;
+
STATS(jniinvokation();)
- java_objectheader *s = (java_objectheader*) array;
- arraydescriptor *desc = s->vftbl->arraydesc;
- if (!desc) return NULL;
+ s = (java_objectheader *) array;
+ desc = s->vftbl->arraydesc;
+
+ if (!desc)
+ return NULL;
- return ((u1*)s) + desc->dataoffset;
+ if (isCopy)
+ *isCopy = JNI_FALSE;
+
+ /* TODO add to global refs */
+
+ return ((u1 *) s) + desc->dataoffset;
}
-void ReleasePrimitiveArrayCritical (JNIEnv* env, jarray array, void *carray, jint mode)
+/* ReleasePrimitiveArrayCritical ***********************************************
+
+ No specific documentation.
+
+*******************************************************************************/
+
+void ReleasePrimitiveArrayCritical(JNIEnv *env, jarray array, void *carray,
+ jint mode)
{
STATS(jniinvokation();)
- log_text("JNI-Call: ReleasePrimitiveArrayCritical");
- /* empty */
+ log_text("JNI-Call: ReleasePrimitiveArrayCritical: IMPLEMENT ME!!!");
+
+ /* TODO remove from global refs */
}
-/**** returns a pointer to an array of Unicode characters of the string *******/
-const jchar * GetStringCritical (JNIEnv* env, jstring string, jboolean *isCopy)
+/* GetStringCritical ***********************************************************
+
+ The semantics of these two functions are similar to the existing
+ Get/ReleaseStringChars functions.
+
+*******************************************************************************/
+
+const jchar *GetStringCritical(JNIEnv *env, jstring string, jboolean *isCopy)
{
STATS(jniinvokation();)
- log_text("JNI-Call: GetStringCritical");
- return GetStringChars(env,string,isCopy);
+ return GetStringChars(env, string, isCopy);
}
-/*********** native code no longer needs access to chars **********************/
-void ReleaseStringCritical (JNIEnv* env, jstring string, const jchar *cstring)
+void ReleaseStringCritical(JNIEnv *env, jstring string, const jchar *cstring)
{
STATS(jniinvokation();)
- log_text("JNI-Call: ReleaseStringCritical");
- ReleaseStringChars(env,string,cstring);
+ ReleaseStringChars(env, string, cstring);
}
jobject newval = NewObject(env, intclass, newint, val);
if (newval != NULL) {
- CallObjectMethod(env,*global_ref_table, putmid,newval);
+ CallObjectMethod(env,*global_ref_table, putmid, gref, newval);
} else {
log_text("JNI-DeleteGlobalRef: unable to create new java.lang.Integer");
/* NewDirectByteBuffer *********************************************************
- Allocates and returns a direct java.nio.ByteBuffer referring to the block of
- memory starting at the memory address address and extending capacity bytes.
+ Allocates and returns a direct java.nio.ByteBuffer referring to the
+ block of memory starting at the memory address address and
+ extending capacity bytes.
*******************************************************************************/
/* GetDirectBufferAddress ******************************************************
- Fetches and returns the starting address of the memory region referenced by
- the given direct java.nio.Buffer.
+ Fetches and returns the starting address of the memory region
+ referenced by the given direct java.nio.Buffer.
*******************************************************************************/
/* GetDirectBufferCapacity *****************************************************
- Fetches and returns the capacity in bytes of the memory region referenced by
- the given direct java.nio.Buffer.
+ Fetches and returns the capacity in bytes of the memory region
+ referenced by the given direct java.nio.Buffer.
*******************************************************************************/
}
+/* AttachCurrentThread *********************************************************
+
+ Attaches the current thread to a Java VM. Returns a JNI interface
+ pointer in the JNIEnv argument.
+
+ Trying to attach a thread that is already attached is a no-op.
+
+ A native thread cannot be attached simultaneously to two Java VMs.
+
+ When a thread is attached to the VM, the context class loader is
+ the bootstrap loader.
+
+*******************************************************************************/
+
jint AttachCurrentThread(JavaVM *vm, void **env, void *thr_args)
{
STATS(jniinvokation();)
+
log_text("AttachCurrentThread called");
#if !defined(HAVE___THREAD)
#endif
*env = &ptr_env;
+
return 0;
}
}
+/* GetEnv **********************************************************************
+
+ If the current thread is not attached to the VM, sets *env to NULL,
+ and returns JNI_EDETACHED. If the specified version is not
+ supported, sets *env to NULL, and returns JNI_EVERSION. Otherwise,
+ sets *env to the appropriate interface, and returns JNI_OK.
+
+*******************************************************************************/
+
jint GetEnv(JavaVM *vm, void **env, jint version)
{
STATS(jniinvokation();)
- if ((version != JNI_VERSION_1_1) && (version != JNI_VERSION_1_2) &&
- (version != JNI_VERSION_1_4)) {
- *env = NULL;
- return JNI_EVERSION;
- }
- /*
- TODO: If the current thread is not attached to the VM...
- if (0) {
+#if defined(USE_THREADS) && defined(NATIVE_THREADS)
+ if (thread_getself() == NULL) {
*env = NULL;
+
return JNI_EDETACHED;
}
- */
+#endif
- *env = &ptr_env;
+ if ((version == JNI_VERSION_1_1) || (version == JNI_VERSION_1_2) ||
+ (version == JNI_VERSION_1_4)) {
+ *env = &ptr_env;
- return JNI_OK;
+ return JNI_OK;
+ }
+
+#if defined(ENABLE_JVMTI)
+ if (version == JVMTI_VERSION_1_0) {
+ *env = (void *) new_jvmtienv();
+
+ if (env != NULL)
+ return JNI_OK;
+ }
+#endif
+
+ *env = NULL;
+
+ return JNI_EVERSION;
}
+
jint AttachCurrentThreadAsDaemon(JavaVM *vm, void **par1, void *par2)
{
STATS(jniinvokation();)
DeleteGlobalRef(env, gref);
}
-void jni_init(){
+
+void jni_init(void)
+{
jmethodID mid;
initrunning = true;
- log_text("JNI-Init: initialize global_ref_table");
+
/* initalize global reference table */
ihmclass = FindClass(NULL, "java/util/IdentityHashMap");
jint JNI_CreateJavaVM(JavaVM **p_vm, JNIEnv **p_env, void *vm_args)
{
- *p_vm = (JavaVM *) &JNI_JavaVMTable;
- *p_env = (JNIEnv *) &JNI_JNIEnvTable;
+ const struct JNIInvokeInterface *vm;
+ struct JNINativeInterface *env;
+
+ vm = &JNI_JavaVMTable;
+ env = &JNI_JNIEnvTable;
+
+ *p_vm = (JavaVM *) vm;
+ *p_env = (JNIEnv *) env;
return 0;
}
-jobject *jni_method_invokeNativeHelper(JNIEnv *env, struct methodinfo *methodID, jobject obj, java_objectarray *params)
+jobject *jni_method_invokeNativeHelper(JNIEnv *env, methodinfo *methodID,
+ jobject obj, java_objectarray *params)
{
- int argcount;
jni_callblock *blk;
- int retT;
- jobject retVal;
+ jobject o;
+ s4 argcount;
if (methodID == 0) {
*exceptionptr = new_exception(string_java_lang_NoSuchMethodError);
argcount = methodID->parseddesc->paramcount;
+ /* if method is non-static, remove the `this' pointer */
+
+ if (!(methodID->flags & ACC_STATIC))
+ argcount--;
+
/* the method is an instance method the obj has to be an instance of the
class the method belongs to. For static methods the obj parameter
is ignored. */
+
if (!(methodID->flags & ACC_STATIC) && obj &&
(!builtin_instanceof((java_objectheader *) obj, methodID->class))) {
- *exceptionptr = new_exception_message(string_java_lang_IllegalArgumentException,
+ *exceptionptr =
+ new_exception_message(string_java_lang_IllegalArgumentException,
"Object parameter of wrong type in Java_java_lang_reflect_Method_invokeNative");
- return 0;
+ return NULL;
}
if (argcount > 3) {
*exceptionptr = new_exception(string_java_lang_IllegalArgumentException);
log_text("Too many arguments. invokeNativeHelper does not support that");
- return 0;
+ return NULL;
}
#endif
- if (((params==0) && (argcount != 0)) || (params && (params->header.size != argcount))) {
- *exceptionptr = new_exception(string_java_lang_IllegalArgumentException);
- return 0;
+
+ if (((params == NULL) && (argcount != 0)) ||
+ (params && (params->header.size != argcount))) {
+ *exceptionptr =
+ new_exception(string_java_lang_IllegalArgumentException);
+ return NULL;
}
- if (((methodID->flags & ACC_STATIC)==0) && (0==obj)) {
+ if (!(methodID->flags & ACC_STATIC) && !obj) {
*exceptionptr =
new_exception_message(string_java_lang_NullPointerException,
"Static mismatch in Java_java_lang_reflect_Method_invokeNative");
- return 0;
+ return NULL;
}
- if ((methodID->flags & ACC_STATIC) && (obj)) obj = 0;
+ if ((methodID->flags & ACC_STATIC) && (obj))
+ obj = NULL;
if (obj) {
- if ( (methodID->flags & ACC_ABSTRACT) || (methodID->class->flags & ACC_INTERFACE) ) {
- methodID=get_virtual(obj,methodID);
+ if ((methodID->flags & ACC_ABSTRACT) ||
+ (methodID->class->flags & ACC_INTERFACE)) {
+ methodID = get_virtual(obj, methodID);
}
}
- blk = MNEW(jni_callblock, /*4 */argcount+2);
+ blk = MNEW(jni_callblock, /*4 */argcount + 2);
- if (!fill_callblock_objA(obj, methodID->parseddesc, blk, params,&retT))
- return 0; /* exception */
+ if (!fill_callblock_from_objectarray(obj, methodID->parseddesc, blk,
+ params))
+ return NULL;
- switch (retT) {
+ switch (methodID->parseddesc->returntype.decltype) {
case TYPE_VOID:
- (void) asm_calljavafunction2(methodID,
- argcount + 1,
+ (void) asm_calljavafunction2(methodID, argcount + 1,
(argcount + 1) * sizeof(jni_callblock),
blk);
- retVal = NULL; /*native_new_and_init(loader_load(utf_new_char("java/lang/Void")));*/
+ o = NULL; /*native_new_and_init(loader_load(utf_new_char("java/lang/Void")));*/
break;
case PRIMITIVETYPE_INT: {
- s4 intVal;
- intVal = asm_calljavafunction2int(methodID,
- argcount + 1,
- (argcount + 1) * sizeof(jni_callblock),
- blk);
- retVal = builtin_new(class_java_lang_Integer);
- CallVoidMethod(env,
- retVal,
- class_resolvemethod(retVal->vftbl->class,
- utf_init,
- utf_int__void),
- intVal);
+ s4 i;
+ i = asm_calljavafunction2int(methodID, argcount + 1,
+ (argcount + 1) * sizeof(jni_callblock),
+ blk);
+
+ o = native_new_and_init_int(class_java_lang_Integer, i);
}
break;
case PRIMITIVETYPE_BYTE: {
- s4 intVal;
- intVal = asm_calljavafunction2int(methodID,
- argcount + 1,
- (argcount + 1) * sizeof(jni_callblock),
- blk);
- retVal = builtin_new(class_java_lang_Byte);
+ s4 i;
+ i = asm_calljavafunction2int(methodID, argcount + 1,
+ (argcount + 1) * sizeof(jni_callblock),
+ blk);
+
+/* o = native_new_and_init_int(class_java_lang_Byte, i); */
+ o = builtin_new(class_java_lang_Byte);
CallVoidMethod(env,
- retVal,
- class_resolvemethod(retVal->vftbl->class,
+ o,
+ class_resolvemethod(o->vftbl->class,
utf_init,
utf_byte__void),
- intVal);
+ i);
}
break;
argcount + 1,
(argcount + 1) * sizeof(jni_callblock),
blk);
- retVal = builtin_new(class_java_lang_Character);
+ o = builtin_new(class_java_lang_Character);
CallVoidMethod(env,
- retVal,
- class_resolvemethod(retVal->vftbl->class,
+ o,
+ class_resolvemethod(o->vftbl->class,
utf_init,
utf_char__void),
intVal);
argcount + 1,
(argcount + 1) * sizeof(jni_callblock),
blk);
- retVal = builtin_new(class_java_lang_Short);
+ o = builtin_new(class_java_lang_Short);
CallVoidMethod(env,
- retVal,
- class_resolvemethod(retVal->vftbl->class,
+ o,
+ class_resolvemethod(o->vftbl->class,
utf_init,
utf_short__void),
intVal);
argcount + 1,
(argcount + 1) * sizeof(jni_callblock),
blk);
- retVal = builtin_new(class_java_lang_Boolean);
+ o = builtin_new(class_java_lang_Boolean);
CallVoidMethod(env,
- retVal,
- class_resolvemethod(retVal->vftbl->class,
+ o,
+ class_resolvemethod(o->vftbl->class,
utf_init,
utf_boolean__void),
intVal);
argcount + 1,
(argcount + 1) * sizeof(jni_callblock),
blk);
- retVal = builtin_new(class_java_lang_Long);
+ o = builtin_new(class_java_lang_Long);
CallVoidMethod(env,
- retVal,
- class_resolvemethod(retVal->vftbl->class,
+ o,
+ class_resolvemethod(o->vftbl->class,
utf_init,
utf_long__void),
longVal);
argcount + 1,
(argcount + 1) * sizeof(jni_callblock),
blk);
- retVal = builtin_new(class_java_lang_Float);
+ o = builtin_new(class_java_lang_Float);
CallVoidMethod(env,
- retVal,
- class_resolvemethod(retVal->vftbl->class,
+ o,
+ class_resolvemethod(o->vftbl->class,
utf_init,
utf_float__void),
floatVal);
argcount + 1,
(argcount + 1) * sizeof(jni_callblock),
blk);
- retVal = builtin_new(class_java_lang_Double);
+ o = builtin_new(class_java_lang_Double);
CallVoidMethod(env,
- retVal,
- class_resolvemethod(retVal->vftbl->class,
+ o,
+ class_resolvemethod(o->vftbl->class,
utf_init,
utf_double__void),
doubleVal);
break;
case TYPE_ADR:
- retVal = asm_calljavafunction2(methodID,
- argcount + 1,
- (argcount + 1) * sizeof(jni_callblock),
- blk);
+ o = asm_calljavafunction2(methodID, argcount + 1,
+ (argcount + 1) * sizeof(jni_callblock), blk);
break;
default:
- /* if this happens the acception has already been set by fill_callblock_objA*/
+ /* if this happens the exception has already been set by */
+ /* fill_callblock_from_objectarray */
+
MFREE(blk, jni_callblock, /*4 */ argcount+2);
return (jobject *) 0;
}
MFREE(blk, jni_callblock, /* 4 */ argcount+2);
if (*exceptionptr) {
- java_objectheader *exceptionToWrap = *exceptionptr;
- classinfo *ivtec;
- java_objectheader *ivte;
+ java_objectheader *cause;
- *exceptionptr = NULL;
- if (load_class_bootstrap(utf_new_char("java/lang/reflect/InvocationTargetException"),
- &ivtec))
- {
- ivte = builtin_new(ivtec);
- asm_calljavafunction(class_resolvemethod(ivtec,
- utf_new_char("<init>"),
- utf_new_char("(Ljava/lang/Throwable;)V")),
- ivte,
- exceptionToWrap,
- 0,
- 0);
- }
+ cause = *exceptionptr;
+
+ /* clear exception pointer, we are calling JIT code again */
- if (*exceptionptr != NULL)
- panic("jni.c: error while creating InvocationTargetException wrapper");
+ *exceptionptr = NULL;
- *exceptionptr = ivte;
+ *exceptionptr =
+ new_exception_throwable(string_java_lang_reflect_InvocationTargetException,
+ (java_lang_Throwable *) cause);
}
- return (jobject *) retVal;
+ return (jobject *) o;
}
-
-
/*
* These are local overrides for various environment variables in Emacs.
* Please do not remove this and leave it at the end of the file, where
projects / cacao.git / blobdiff