1 /* JORTETypeRegisterAdd.c */
4 * This code provides conversion between JAVA a C environments.
5 * The C functions are calling here and results are send to JAVA
6 * native functions. It uses the header pregenerated by JAVA
7 * (by command 'javah -jni class_with_native_function')
9 * @author Lukas Pokorny (lukas_pokorny@centrum.cz)
10 * @author CTU FEE Prague - Department of Control Engineering (dce.felk.cvut.cz)
11 * @author Project ORTE - OCERA Real Time Ethernet (www.ocera.org)
12 * @author dedication to Kj
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License as published by
18 * the Free Software Foundation; either version 2 of the License, or
19 * (at your option) any later version.
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
30 // library header file's path
32 // pregenerated header
33 #include "jorte/org_ocera_orte_DomainApp.h"
34 #include "jorte/jorte_protos_api.h"
35 #include "jorte/4all.h"
37 extern JavaVM *javavm;
38 static jobject byte_buf;
40 void deserialize(CDR_Codec *cdrCodec, void *instance) {
47 //set byte order only once
50 (*javavm)->AttachCurrentThread(javavm, (void **)&env, NULL);
54 printf(":!c: env = NULL \n");
59 cls = (*env)->FindClass(env, "java/nio/ByteOrder");
62 printf(":!c: cls = NULL \n");
65 if(cdrCodec->data_endian == BigEndian) {
66 fid = (*env)->GetStaticFieldID(env,
69 "Ljava/nio/ByteOrder;");
72 fid = (*env)->GetStaticFieldID(env,
75 "Ljava/nio/ByteOrder;");
79 printf(":!c: fid = NULL \n");
82 obj_bo = (*env)->GetStaticObjectField(env, cls, fid);
85 printf(":!c: cls = NULL \n");
89 // set byte order to ByteBuffer
91 cls = (*env)->GetObjectClass(env, byte_buf);
95 printf(":!c: cls = NULL \n");
98 // get methodID - order(ByteOrder)
99 mid = (*env)->GetMethodID(env,
102 "(Ljava/nio/ByteOrder;)Ljava/nio/ByteBuffer;");
106 printf(":!c: mid = NULL \n");
111 if((*env)->CallObjectMethod(env,byte_buf,mid,obj_bo) == 0)
114 printf(":!c: set byte order failed.. \n");
118 // delete global reference
119 (*env)->DeleteGlobalRef(env, byte_buf);
122 (*javavm)->DetachCurrentThread(javavm);
125 //copy over the message instance
131 JNIEXPORT jint JNICALL
132 Java_org_ocera_orte_DomainApp_jORTETypeRegisterAdd
133 (JNIEnv *env, jclass cls, jlong handle, jstring jname, jlong jlength, jobject obj_bb)
138 // get type name from JAVA env
139 name = (*env)->GetStringUTFChars(env,jname,0);
140 // call ORTE function
141 b = ORTETypeRegisterAdd((ORTEDomain *) handle,
144 (ORTETypeDeserialize)deserialize,
146 (unsigned int) jlength);
147 // free memmory space
148 (*env)->ReleaseStringUTFChars(env,jname,name);
150 byte_buf = (*env)->NewGlobalRef(env, obj_bb);
153 printf(":c: jORTETypeRegisterAdd vraci %d [%d = ORTE_OK, %d = ORTE_BAD_HANDLE] \n",
154 b,ORTE_OK,ORTE_BAD_HANDLE);