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authorMartin Sustrik <sustrik@fastmq.commkdir>2009-09-02 10:23:01 +0200
committerMartin Sustrik <sustrik@fastmq.commkdir>2009-09-02 10:23:01 +0200
commit5e08a89d1c0edf44e15f262dd0f27a1c03bcd699 (patch)
treeeba28221c1e5e69418078df406609e8d3dffe64c /java/Context.cpp
parent6a5120b1f1c48d19b777f76ac756b00fb624d110 (diff)
parent1f06d99a0f563fdc32e9c00392f9875ba3009593 (diff)
Merge branch 'master' of git@github.com:sustrik/zeromq2
Diffstat (limited to 'java/Context.cpp')
-rw-r--r--java/Context.cpp92
1 files changed, 92 insertions, 0 deletions
diff --git a/java/Context.cpp b/java/Context.cpp
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+++ b/java/Context.cpp
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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;
+}