Fix: Make the JNI interface actually work

[lttng-ust.git] / liblttng-ust-java / LTTngUst.c

diff --git a/liblttng-ust-java/LTTngUst.c b/liblttng-ust-java/LTTngUst.c
new file mode 100644 (file)
index 0000000..3d23d6a
--- /dev/null
+++ b/liblttng-ust-java/LTTngUst.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; only
+ * version 2.1 of the License.
+ *
+ * This library 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 GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <jni.h>
+
+#define TRACEPOINT_DEFINE
+#define TRACEPOINT_CREATE_PROBES
+#include "lttng_ust_java.h"
+
+JNIEXPORT void JNICALL Java_org_lttng_ust_LTTngUst_tracepointString(JNIEnv *env,
+                                               jobject jobj,
+                                               jstring ev_name,
+                                               jstring args)
+{
+       jboolean iscopy;
+       const char *ev_name_cstr = (*env)->GetStringUTFChars(env, ev_name,
+                                                       &iscopy);
+       const char *args_cstr = (*env)->GetStringUTFChars(env, args, &iscopy);
+
+       tracepoint(lttng_ust_java, string, ev_name_cstr, args_cstr);
+
+       (*env)->ReleaseStringUTFChars(env, ev_name, ev_name_cstr);
+       (*env)->ReleaseStringUTFChars(env, args, args_cstr);
+}