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/*
Copyright (c) 2007-2009 FastMQ Inc.
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the Lesser GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
0MQ is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Lesser GNU General Public License for more details.
You should have received a copy of the Lesser GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include "zmq.h"
#include "org_zmq_Context.h"
static jfieldID ctx_handle_fid = NULL;
static void raise_exception (JNIEnv *env, int err)
{
// Get exception class.
jclass exception_class = env->FindClass ("java/lang/Exception");
assert (exception_class);
// Get text description of the exception.
const char *err_msg = strerror (err);
// Raise the exception.
int rc = env->ThrowNew (exception_class, err_msg);
assert (rc == 0);
// Free the local ref.
env->DeleteLocalRef (exception_class);
}
JNIEXPORT void JNICALL Java_org_zmq_Context_construct (JNIEnv *env, jobject obj,
jint app_threads, jint io_threads)
{
if (ctx_handle_fid == NULL) {
jclass cls = env->GetObjectClass (obj);
assert (cls);
ctx_handle_fid = env->GetFieldID (cls, "contextHandle", "J");
assert (ctx_handle_fid);
env->DeleteLocalRef (cls);
}
void *ctx = zmq_init (app_threads, io_threads);
if (ctx == NULL) {
raise_exception (env, errno);
return;
}
env->SetLongField (obj, ctx_handle_fid, (jlong) ctx);
}
JNIEXPORT void JNICALL Java_org_zmq_Context_finalize (JNIEnv *env, jobject obj)
{
void *ctx = (void*) env->GetLongField (obj, ctx_handle_fid);
assert (ctx);
int rc = zmq_term (ctx);
assert (rc == 0);
}
JNIEXPORT jlong JNICALL Java_org_zmq_Context_createSocket (JNIEnv *env,
jobject obj, jint type)
{
void *ctx = (void*) env->GetLongField (obj, ctx_handle_fid);
assert (ctx);
void *s = zmq_socket (ctx, type);
if (s == NULL) {
raise_exception (env, errno);
return -1;
}
return (jlong) s;
}
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