#include "jxbt_utilities.h"
#include <msg/msg.h>
+
XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(jmsg);
-static jmethodID jtask_field_Comm_constructor;
+static jmethodID jtask_method_Comm_constructor;
static jfieldID jtask_field_Task_bind;
+static jfieldID jtask_field_Task_name;
static jfieldID jtask_field_Comm_bind;
static jfieldID jtask_field_Comm_taskBind;
static jfieldID jtask_field_Comm_receiving;
-void jtask_bind(jobject jtask, m_task_t task, JNIEnv * env)
+void jtask_bind(jobject jtask, msg_task_t task, JNIEnv * env)
{
(*env)->SetLongField(env, jtask, jtask_field_Task_bind, (jlong) (long) (task));
}
-m_task_t jtask_to_native_task(jobject jtask, JNIEnv * env)
+msg_task_t jtask_to_native_task(jobject jtask, JNIEnv * env)
{
- return (m_task_t) (long) (*env)->GetLongField(env, jtask, jtask_field_Task_bind);
+ return (msg_task_t) (long) (*env)->GetLongField(env, jtask, jtask_field_Task_bind);
}
jboolean jtask_is_valid(jobject jtask, JNIEnv * env)
JNIEXPORT void JNICALL
Java_org_simgrid_msg_Task_nativeInit(JNIEnv *env, jclass cls) {
- jclass jtask_class_Comm = (*env)->FindClass(env, "org/simgrid/msg/Comm");
-
- jtask_field_Comm_constructor = (*env)->GetMethodID(env, jtask_class_Comm, "<init>", "()V");
- //FIXME: Don't use jxbt_get_sfield directly.
- jtask_field_Task_bind = jxbt_get_sfield(env, "org/simgrid/msg/Task", "bind", "J");
- jtask_field_Comm_bind = jxbt_get_sfield(env, "org/simgrid/msg/Comm", "bind", "J");
- jtask_field_Comm_taskBind = jxbt_get_sfield(env, "org/simgrid/msg/Comm", "taskBind", "J");
- jtask_field_Comm_receiving = jxbt_get_sfield(env, "org/simgrid/msg/Comm", "receiving", "Z");
+ jclass jtask_class_Comm = (*env)->FindClass(env, "org/simgrid/msg/Comm");
+ jclass jtask_class_Task = (*env)->FindClass(env, "org/simgrid/msg/Task");
+
+ jtask_method_Comm_constructor = (*env)->GetMethodID(env, jtask_class_Comm, "<init>", "()V");
+ jtask_field_Task_bind = jxbt_get_jfield(env, jtask_class_Task, "bind", "J");
+ jtask_field_Task_name = jxbt_get_jfield(env, jtask_class_Task, "name", "Ljava/lang/String;");
+ jtask_field_Comm_bind = jxbt_get_jfield(env, jtask_class_Comm, "bind", "J");
+ jtask_field_Comm_taskBind = jxbt_get_jfield(env, jtask_class_Comm, "taskBind", "J");
+ jtask_field_Comm_receiving = jxbt_get_jfield(env, jtask_class_Comm, "receiving", "Z");
+ if (!jtask_field_Task_bind || !jtask_class_Task || !jtask_field_Comm_bind || !jtask_field_Comm_taskBind ||
+ !jtask_field_Comm_receiving || !jtask_method_Comm_constructor) {
+ jxbt_throw_native(env,bprintf("Can't find some fields in Java class."));
+ }
}
JNIEXPORT void JNICALL
jdouble jcomputeDuration,
jdouble jmessageSize)
{
- m_task_t task; /* the native task to create */
+ msg_task_t task; /* the native task to create */
const char *name = NULL; /* the name of the task */
if (jcomputeDuration < 0) {
if (jmessageSize < 0) {
jxbt_throw_illegal(env,
bprintf("Task MessageSize (%f) cannot be negative",
- (double) jmessageSize));
+ (double) jmessageSize));
return;
}
name = (*env)->GetStringUTFChars(env, jname, 0);
}
-
/* create the task */
task =
MSG_task_create(name, (double) jcomputeDuration,
- (double) jmessageSize, NULL);
+ (double) jmessageSize, NULL);
if (jname)
(*env)->ReleaseStringUTFChars(env, jname, name);
-
+ /* sets the task name */
+ (*env)->SetObjectField(env, jtask, jtask_field_Task_name, jname);
/* bind & store the task */
jtask_bind(jtask, task, env);
MSG_task_set_data(task, jtask);
JNIEXPORT void JNICALL
Java_org_simgrid_msg_Task_parallelCreate(JNIEnv * env,
- jobject jtask,
- jstring jname,
- jobjectArray jhosts,
- jdoubleArray
- jcomputeDurations_arg,
- jdoubleArray
- jmessageSizes_arg) {
-
- m_task_t task; /* the native parallel task to create */
+ jobject jtask,
+ jstring jname,
+ jobjectArray jhosts,
+ jdoubleArray
+ jcomputeDurations_arg,
+ jdoubleArray
+ jmessageSizes_arg) {
+
+ msg_task_t task; /* the native parallel task to create */
const char *name; /* the name of the task */
int host_count;
- m_host_t *hosts;
+ msg_host_t *hosts;
double *computeDurations;
double *messageSizes;
jdouble *jcomputeDurations;
jobject jhost;
int index;
-
if (!jcomputeDurations_arg) {
jxbt_throw_null(env,
xbt_strdup
host_count = (int) (*env)->GetArrayLength(env, jhosts);
- hosts = xbt_new0(m_host_t, host_count);
+ hosts = xbt_new0(msg_host_t, host_count);
computeDurations = xbt_new0(double, host_count);
messageSizes = xbt_new0(double, host_count * host_count);
messageSizes, NULL);
(*env)->ReleaseStringUTFChars(env, jname, name);
-
+ /* sets the task name */
+ (*env)->SetObjectField(env, jtask, jtask_field_Task_name, jname);
/* associate the java task object and the native task */
jtask_bind(jtask, task, env);
Java_org_simgrid_msg_Task_cancel(JNIEnv * env,
jobject jtask)
{
- m_task_t ptask = jtask_to_native_task(jtask, env);
+ msg_task_t ptask = jtask_to_native_task(jtask, env);
if (!ptask) {
jxbt_throw_notbound(env, "task", jtask);
return;
}
- MSG_error_t rv = MSG_task_cancel(ptask);
+ msg_error_t rv = MSG_task_cancel(ptask);
jxbt_check_res("MSG_task_cancel()", rv, MSG_OK,
bprintf("unexpected error , please report this bug"));
Java_org_simgrid_msg_Task_execute(JNIEnv * env,
jobject jtask)
{
- m_task_t task = jtask_to_native_task(jtask, env);
+ msg_task_t task = jtask_to_native_task(jtask, env);
if (!task) {
jxbt_throw_notbound(env, "task", jtask);
return;
}
-
- MSG_error_t rv = MSG_task_execute(task);
-
- jxbt_check_res("MSG_task_execute()", rv,
- MSG_HOST_FAILURE | MSG_TASK_CANCELED,
- bprintf("while executing task %s",
- MSG_task_get_name(task)));
+ xbt_ex_t e;
+ msg_error_t rv;
+ TRY {
+ rv = MSG_task_execute(task);
+ }
+ CATCH(e) {
+ xbt_ex_free(e);
+ return;
+ }
+ if (rv != MSG_OK) {
+ jmsg_throw_status(env, rv);
+ }
}
JNIEXPORT jstring JNICALL
Java_org_simgrid_msg_Task_getName(JNIEnv * env,
jobject jtask) {
- m_task_t task = jtask_to_native_task(jtask, env);
+ msg_task_t task = jtask_to_native_task(jtask, env);
if (!task) {
jxbt_throw_notbound(env, "task", jtask);
JNIEXPORT jobject JNICALL
Java_org_simgrid_msg_Task_getSender(JNIEnv * env,
jobject jtask) {
- m_process_t process;
+ msg_process_t process;
- m_task_t task = jtask_to_native_task(jtask, env);
+ msg_task_t task = jtask_to_native_task(jtask, env);
if (!task) {
jxbt_throw_notbound(env, "task", jtask);
}
process = MSG_task_get_sender(task);
+ if (process == NULL) {
+ return NULL;
+ }
return (jobject) native_to_java_process(process);
}
Java_org_simgrid_msg_Task_getSource(JNIEnv * env,
jobject jtask)
{
- m_host_t host;
- m_task_t task = jtask_to_native_task(jtask, env);
+ msg_host_t host;
+ msg_task_t task = jtask_to_native_task(jtask, env);
if (!task) {
jxbt_throw_notbound(env, "task", jtask);
}
host = MSG_task_get_source(task);
-
+ if (host == NULL) {
+ return NULL;
+ }
if (!MSG_host_get_data(host)) {
jxbt_throw_jni(env, "MSG_task_get_source() failed");
return NULL;
Java_org_simgrid_msg_Task_getComputeDuration(JNIEnv * env,
jobject jtask)
{
- m_task_t ptask = jtask_to_native_task(jtask, env);
+ msg_task_t ptask = jtask_to_native_task(jtask, env);
if (!ptask) {
jxbt_throw_notbound(env, "task", jtask);
JNIEXPORT jdouble JNICALL
Java_org_simgrid_msg_Task_getRemainingDuration(JNIEnv * env, jobject jtask)
{
- m_task_t ptask = jtask_to_native_task(jtask, env);
+ msg_task_t ptask = jtask_to_native_task(jtask, env);
if (!ptask) {
jxbt_throw_notbound(env, "task", jtask);
}
return (jdouble) MSG_task_get_remaining_computation(ptask);
}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Task_setName(JNIEnv *env, jobject jtask, jobject jname) {
+ msg_task_t task = jtask_to_native_task(jtask, env);
+
+ if (!task) {
+ jxbt_throw_notbound(env, "task", jtask);
+ return;
+ }
+ const char *name = (*env)->GetStringUTFChars(env, jname, 0);
+
+ (*env)->SetObjectField(env, jtask, jtask_field_Task_name, jname);
+ MSG_task_set_name(task, name);
+ (*env)->ReleaseStringUTFChars(env, jname, name);
+}
JNIEXPORT void JNICALL
Java_org_simgrid_msg_Task_setPriority(JNIEnv * env,
jobject jtask, jdouble priority)
{
- m_task_t task = jtask_to_native_task(jtask, env);
+ msg_task_t task = jtask_to_native_task(jtask, env);
if (!task) {
jxbt_throw_notbound(env, "task", jtask);
MSG_task_set_priority(task, (double) priority);
}
JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Task_setComputeDuration
+ (JNIEnv *env, jobject jtask, jdouble computationAmount) {
+ msg_task_t task = jtask_to_native_task(jtask, env);
+
+ if (!task) {
+ jxbt_throw_notbound(env, "task", jtask);
+ return;
+ }
+ MSG_task_set_compute_duration(task, (double) computationAmount);
+}
+JNIEXPORT void JNICALL
Java_org_simgrid_msg_Task_send(JNIEnv * env,jobject jtask,
jstring jalias,
jdouble jtimeout)
{
- MSG_error_t rv;
+ msg_error_t rv;
const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
- m_task_t task = jtask_to_native_task(jtask, env);
+ msg_task_t task = jtask_to_native_task(jtask, env);
if (!task) {
/* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
- rv = MSG_task_send_with_timeout(task, alias, (double) jtimeout);
-
+ xbt_ex_t e;
+ TRY {
+ rv = MSG_task_send_with_timeout(task, alias, (double) jtimeout);
+ }
+ CATCH(e) {
+ xbt_ex_free(e);
+ }
(*env)->ReleaseStringUTFChars(env, jalias, alias);
- jxbt_check_res("MSG_task_send_with_timeout()", rv,
- MSG_HOST_FAILURE | MSG_TRANSFER_FAILURE | MSG_TIMEOUT,
- bprintf("while sending task %s to mailbox %s",
- MSG_task_get_name(task), alias));
+ if (rv != MSG_OK) {
+ jmsg_throw_status(env, rv);
+ }
}
JNIEXPORT void JNICALL
-Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env, jobject jtask,
- jstring jalias,
- jdouble jmaxRate)
+Java_org_simgrid_msg_Task_sendBounded(JNIEnv * env,jobject jtask,
+ jstring jalias,
+ jdouble jtimeout,
+ jdouble maxrate)
{
- m_task_t task = jtask_to_native_task(jtask, env);
- MSG_error_t rv;
- const char *alias;
+ msg_error_t rv;
+ const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
+
+ msg_task_t task = jtask_to_native_task(jtask, env);
+
if (!task) {
+ (*env)->ReleaseStringUTFChars(env, jalias, alias);
jxbt_throw_notbound(env, "task", jtask);
return;
}
- alias = (*env)->GetStringUTFChars(env, jalias, 0);
-
/* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
- rv = MSG_task_send_bounded(task, alias, (double) jmaxRate);
-
+ xbt_ex_t e;
+ TRY {
+ rv = MSG_task_send_with_timeout_bounded(task, alias, (double) jtimeout, (double) maxrate);
+ }
+ CATCH(e) {
+ xbt_ex_free(e);
+ }
(*env)->ReleaseStringUTFChars(env, jalias, alias);
- jxbt_check_res("MSG_task_send_bounded()", rv,
- MSG_HOST_FAILURE | MSG_TRANSFER_FAILURE | MSG_TIMEOUT,
- bprintf
- ("while sending task %s to mailbox %s with max rate %f",
- MSG_task_get_name(task), alias, (double) jmaxRate));
-
+ if (rv != MSG_OK) {
+ jmsg_throw_status(env, rv);
+ }
}
-
JNIEXPORT jobject JNICALL
Java_org_simgrid_msg_Task_receive(JNIEnv * env, jclass cls,
jstring jalias, jdouble jtimeout,
jobject jhost)
{
- MSG_error_t rv;
- m_task_t task = NULL;
- m_host_t host = NULL;
+ msg_error_t rv;
+ msg_task_t *task = xbt_new(msg_task_t,1);
+ *task = NULL;
+
+ msg_host_t host = NULL;
jobject jtask_global, jtask_local;
const char *alias;
}
alias = (*env)->GetStringUTFChars(env, jalias, 0);
-
- rv = MSG_task_receive_ext(&task, alias, (double) jtimeout, host);
+ xbt_ex_t e;
+ TRY {
+ rv = MSG_task_receive_ext(task, alias, (double) jtimeout, host);
+ }
+ CATCH(e) {
+ xbt_ex_free(e);
+ return NULL;
+ }
if (rv != MSG_OK) {
- switch (rv) {
- case MSG_TIMEOUT:
- jxbt_throw_time_out_failure(env,NULL);
- break;
- case MSG_TRANSFER_FAILURE:
- jxbt_throw_transfer_failure(env,NULL);
- break;
- case MSG_HOST_FAILURE:
- jxbt_throw_host_failure(env,NULL);
- break;
- default:
- jxbt_throw_native(env,bprintf("receive failed"));
- }
+ jmsg_throw_status(env,rv);
return NULL;
}
- jtask_global = MSG_task_get_data(task);
+ jtask_global = MSG_task_get_data(*task);
/* Convert the global ref into a local ref so that the JVM can free the stuff */
jtask_local = (*env)->NewLocalRef(env, jtask_global);
(*env)->DeleteGlobalRef(env, jtask_global);
- MSG_task_set_data(task, NULL);
+ MSG_task_set_data(*task, NULL);
(*env)->ReleaseStringUTFChars(env, jalias, alias);
- jxbt_check_res("MSG_task_receive_ext()", rv,
- MSG_HOST_FAILURE | MSG_TRANSFER_FAILURE | MSG_TIMEOUT,
- bprintf("while receiving from mailbox %s", alias));
+ xbt_free(task);
return (jobject) jtask_local;
}
const char *mailbox;
jclass comm_class;
//pointer to store the task object pointer.
- m_task_t *task = xbt_new(m_task_t,1);
+ msg_task_t *task = xbt_new(msg_task_t,1);
*task = NULL;
/* There should be a cache here */
comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
return NULL;
}
- jobject jcomm = (*env)->NewObject(env, comm_class, jtask_field_Comm_constructor);
+ jobject jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
if (!jcomm) {
jxbt_throw_native(env,bprintf("Can't create a Comm object."));
return NULL;
JNIEXPORT jobject JNICALL
Java_org_simgrid_msg_Task_isend(JNIEnv *env, jobject jtask, jstring jmailbox) {
- jclass comm_class;
+ jclass comm_class;
- const char *mailbox;
+ const char *mailbox;
- m_task_t task;
+ msg_task_t task;
- jobject jcomm;
- msg_comm_t comm;
+ jobject jcomm;
+ msg_comm_t comm;
- comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
+ comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
- if (!comm_class) return NULL;
+ if (!comm_class) return NULL;
- jcomm = (*env)->NewObject(env, comm_class, jtask_field_Comm_constructor);
- mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
+ jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
+ mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
- task = jtask_to_native_task(jtask, env);
+ task = jtask_to_native_task(jtask, env);
- if (!task) {
+ if (!task) {
(*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
(*env)->DeleteLocalRef(env, jcomm);
jxbt_throw_notbound(env, "task", jtask);
- return NULL;
- }
+ return NULL;
+ }
- MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
- comm = MSG_task_isend(task,mailbox);
+MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
+ comm = MSG_task_isend(task,mailbox);
- (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
- (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(NULL));
- (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_FALSE);
+ (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
+ (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(NULL));
+ (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_FALSE);
- (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
+ (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
- return jcomm;
+ return jcomm;
+}
+
+JNIEXPORT jobject JNICALL
+Java_org_simgrid_msg_Task_isendBounded(JNIEnv *env, jobject jtask, jstring jmailbox, jdouble maxrate) {
+ jclass comm_class;
+
+ const char *mailbox;
+
+ msg_task_t task;
+
+ jobject jcomm;
+ msg_comm_t comm;
+
+ comm_class = (*env)->FindClass(env, "org/simgrid/msg/Comm");
+
+ if (!comm_class) return NULL;
+
+ jcomm = (*env)->NewObject(env, comm_class, jtask_method_Comm_constructor);
+ mailbox = (*env)->GetStringUTFChars(env, jmailbox, 0);
+
+ task = jtask_to_native_task(jtask, env);
+
+ if (!task) {
+ (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
+ (*env)->DeleteLocalRef(env, jcomm);
+ jxbt_throw_notbound(env, "task", jtask);
+ return NULL;
+ }
+
+MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
+ comm = MSG_task_isend_bounded(task,mailbox,maxrate);
+
+ (*env)->SetLongField(env, jcomm, jtask_field_Comm_bind, (jlong) (long)(comm));
+ (*env)->SetLongField(env, jcomm, jtask_field_Comm_taskBind, (jlong) (long)(NULL));
+ (*env)->SetBooleanField(env, jcomm, jtask_field_Comm_receiving, JNI_FALSE);
+
+ (*env)->ReleaseStringUTFChars(env, jmailbox, mailbox);
+
+ return jcomm;
}
+
+
static void msg_task_cancel_on_failed_dsend(void*t) {
- m_task_t task = t;
- JNIEnv *env =get_current_thread_env();
- jobject jtask_global = MSG_task_get_data(task);
-
- /* Destroy the global ref so that the JVM can free the stuff */
- (*env)->DeleteGlobalRef(env, jtask_global);
- MSG_task_set_data(task, NULL);
- MSG_task_destroy(task);
+ msg_task_t task = t;
+ JNIEnv *env =get_current_thread_env();
+ jobject jtask_global = MSG_task_get_data(task);
+
+ /* Destroy the global ref so that the JVM can free the stuff */
+ (*env)->DeleteGlobalRef(env, jtask_global);
+ MSG_task_set_data(task, NULL);
+ MSG_task_destroy(task);
}
JNIEXPORT void JNICALL
Java_org_simgrid_msg_Task_dsend(JNIEnv * env, jobject jtask,
jstring jalias) {
-
const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
- m_task_t task = jtask_to_native_task(jtask, env);
+ msg_task_t task = jtask_to_native_task(jtask, env);
if (!task) {
(*env)->ReleaseStringUTFChars(env, jalias, alias);
}
+JNIEXPORT void JNICALL
+Java_org_simgrid_msg_Task_dsendBounded(JNIEnv * env, jobject jtask,
+ jstring jalias, jdouble maxrate) {
+ const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
+
+ msg_task_t task = jtask_to_native_task(jtask, env);
+
+
+ if (!task) {
+ (*env)->ReleaseStringUTFChars(env, jalias, alias);
+ jxbt_throw_notbound(env, "task", jtask);
+ return;
+ }
+
+ /* Pass a global ref to the Jtask into the Ctask so that the receiver can use it */
+ MSG_task_set_data(task, (void *) (*env)->NewGlobalRef(env, jtask));
+ MSG_task_dsend_bounded(task, alias, msg_task_cancel_on_failed_dsend,(double)maxrate);
+
+ (*env)->ReleaseStringUTFChars(env, jalias, alias);
+}
+
+
+
JNIEXPORT jboolean JNICALL
Java_org_simgrid_msg_Task_listen(JNIEnv * env, jclass cls,
jstring jalias) {
const char *alias;
int rv;
+ xbt_ex_t e;
alias = (*env)->GetStringUTFChars(env, jalias, 0);
-
- rv = MSG_task_listen(alias);
-
+ TRY {
+ rv = MSG_task_listen(alias);
+ }
+ CATCH(e) {
+ xbt_ex_free(e);
+ return 0;
+ }
(*env)->ReleaseStringUTFChars(env, jalias, alias);
return (jboolean) rv;
int rv;
const char *alias;
- m_host_t host = jhost_get_native(env, jhost);
+ msg_host_t host = jhost_get_native(env, jhost);
if (!host) {
jxbt_throw_notbound(env, "host", jhost);
return -1;
}
alias = (*env)->GetStringUTFChars(env, jalias, 0);
+ xbt_ex_t e;
- rv = MSG_task_listen_from_host(alias, host);
-
+ TRY {
+ rv = MSG_task_listen_from_host(alias, host);
+ }
+ CATCH(e) {
+ xbt_ex_free(e);
+ return 0;
+ }
(*env)->ReleaseStringUTFChars(env, jalias, alias);
return (jint) rv;
int rv;
const char *alias = (*env)->GetStringUTFChars(env, jalias, 0);
-
- rv = MSG_task_listen_from(alias);
-
+ xbt_ex_t e;
+ TRY {
+ rv = MSG_task_listen_from(alias);
+ }
+ CATCH(e) {
+ xbt_ex_free(e);
+ return 0;
+ }
(*env)->ReleaseStringUTFChars(env, jalias, alias);
return (jint) rv;
