[lttng-ust.git] / src / lib / lttng-ust-java-agent / jni / jul / lttng_ust_jul.c

/*
 * SPDX-License-Identifier: LGPL-2.1-only
 *
 * Copyright (C) 2016 EfficiOS Inc.
 * Copyright (C) 2016 Alexandre Montplaisir <alexmonthy@efficios.com>
 * Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 */

#define _LGPL_SOURCE
#include "org_lttng_ust_agent_jul_LttngJulApi.h"

#define LTTNG_UST_TRACEPOINT_HIDDEN_DEFINITION
#define LTTNG_UST_TRACEPOINT_PROVIDER_HIDDEN_DEFINITION

#define LTTNG_UST_TRACEPOINT_DEFINE
#define LTTNG_UST_TRACEPOINT_CREATE_PROBES
#include "lttng_ust_jul.h"
#include "../common/lttng_ust_context.h"

/*
 * Deprecated function from before the context information was passed.
 */
JNIEXPORT void JNICALL Java_org_lttng_ust_agent_jul_LttngJulApi_tracepoint(JNIEnv *env,
						jobject jobj __attribute__((unused)),
						jstring msg,
						jstring logger_name,
						jstring class_name,
						jstring method_name,
						jlong millis,
						jint log_level,
						jint thread_id)
{
	jboolean iscopy;
	const char *msg_cstr = (*env)->GetStringUTFChars(env, msg, &iscopy);
	const char *logger_name_cstr = (*env)->GetStringUTFChars(env, logger_name, &iscopy);
	const char *class_name_cstr = (*env)->GetStringUTFChars(env, class_name, &iscopy);
	const char *method_name_cstr = (*env)->GetStringUTFChars(env, method_name, &iscopy);

	lttng_ust_tracepoint(lttng_jul, event, msg_cstr, logger_name_cstr,
			class_name_cstr, method_name_cstr, millis, log_level, thread_id);

	(*env)->ReleaseStringUTFChars(env, msg, msg_cstr);
	(*env)->ReleaseStringUTFChars(env, logger_name, logger_name_cstr);
	(*env)->ReleaseStringUTFChars(env, class_name, class_name_cstr);
	(*env)->ReleaseStringUTFChars(env, method_name, method_name_cstr);
}

/*
 * Tracepoint used by Java applications using the JUL handler.
 */
JNIEXPORT void JNICALL Java_org_lttng_ust_agent_jul_LttngJulApi_tracepointWithContext(JNIEnv *env,
						jobject jobj __attribute__((unused)),
						jstring msg,
						jstring logger_name,
						jstring class_name,
						jstring method_name,
						jlong millis,
						jint log_level,
						jint thread_id,
						jbyteArray context_info_entries,
						jbyteArray context_info_strings)
{
	jboolean iscopy;
	const char *msg_cstr = (*env)->GetStringUTFChars(env, msg, &iscopy);
	const char *logger_name_cstr = (*env)->GetStringUTFChars(env, logger_name, &iscopy);
	const char *class_name_cstr = (*env)->GetStringUTFChars(env, class_name, &iscopy);
	const char *method_name_cstr = (*env)->GetStringUTFChars(env, method_name, &iscopy);
	signed char *context_info_entries_array;
	signed char *context_info_strings_array;

	/*
	 * Write these to the TLS variables, so that the UST callbacks in
	 * lttng_ust_context.c can access them.
	 */
	context_info_entries_array = (*env)->GetByteArrayElements(env, context_info_entries, &iscopy);
	lttng_ust_context_info_tls.ctx_entries = (struct lttng_ust_jni_ctx_entry *) context_info_entries_array;
	lttng_ust_context_info_tls.ctx_entries_len = (*env)->GetArrayLength(env, context_info_entries);
	context_info_strings_array = (*env)->GetByteArrayElements(env, context_info_strings, &iscopy);
	lttng_ust_context_info_tls.ctx_strings = context_info_strings_array;
	lttng_ust_context_info_tls.ctx_strings_len = (*env)->GetArrayLength(env, context_info_strings);

	lttng_ust_tracepoint(lttng_jul, event, msg_cstr, logger_name_cstr,
			class_name_cstr, method_name_cstr, millis, log_level, thread_id);

	lttng_ust_context_info_tls.ctx_entries = NULL;
	lttng_ust_context_info_tls.ctx_entries_len = 0;
	lttng_ust_context_info_tls.ctx_strings = NULL;
	lttng_ust_context_info_tls.ctx_strings_len = 0;
	(*env)->ReleaseStringUTFChars(env, msg, msg_cstr);
	(*env)->ReleaseStringUTFChars(env, logger_name, logger_name_cstr);
	(*env)->ReleaseStringUTFChars(env, class_name, class_name_cstr);
	(*env)->ReleaseStringUTFChars(env, method_name, method_name_cstr);
	(*env)->ReleaseByteArrayElements(env, context_info_entries, context_info_entries_array, 0);
	(*env)->ReleaseByteArrayElements(env, context_info_strings, context_info_strings_array, 0);
}
Commit	Line	Data
43e5396b	1	/*
c0c0989a	2	* SPDX-License-Identifier: LGPL-2.1-only
43e5396b	3	*
c0c0989a MJ	4	* Copyright (C) 2016 EfficiOS Inc.
	5	* Copyright (C) 2016 Alexandre Montplaisir <alexmonthy@efficios.com>
	6	* Copyright (C) 2011-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
43e5396b DG	7	*/
43e5396b DG	8
1ddceb36	9	#define _LGPL_SOURCE
6e7bc9e0	10	#include "org_lttng_ust_agent_jul_LttngJulApi.h"
43e5396b	11
6ba0c2b2 MD	12	#define LTTNG_UST_TRACEPOINT_HIDDEN_DEFINITION
	13	#define LTTNG_UST_TRACEPOINT_PROVIDER_HIDDEN_DEFINITION
	14
88c7c4ea	15	#define LTTNG_UST_TRACEPOINT_DEFINE
660323e6	16	#define LTTNG_UST_TRACEPOINT_CREATE_PROBES
43e5396b	17	#include "lttng_ust_jul.h"
8ab5c06b	18	#include "../common/lttng_ust_context.h"
43e5396b	19
9aabed2d	20	/*
8ab5c06b	21	* Deprecated function from before the context information was passed.
9aabed2d	22	*/
6e7bc9e0	23	JNIEXPORT void JNICALL Java_org_lttng_ust_agent_jul_LttngJulApi_tracepoint(JNIEnv *env,
2208d8b5	24	jobject jobj __attribute__((unused)),
43e5396b DG	25	jstring msg,
	26	jstring logger_name,
	27	jstring class_name,
	28	jstring method_name,
	29	jlong millis,
	30	jint log_level,
	31	jint thread_id)
	32	{
	33	jboolean iscopy;
	34	const char msg_cstr = (env)->GetStringUTFChars(env, msg, &iscopy);
	35	const char logger_name_cstr = (env)->GetStringUTFChars(env, logger_name, &iscopy);
	36	const char class_name_cstr = (env)->GetStringUTFChars(env, class_name, &iscopy);
	37	const char method_name_cstr = (env)->GetStringUTFChars(env, method_name, &iscopy);
	38
cbc06a3b	39	lttng_ust_tracepoint(lttng_jul, event, msg_cstr, logger_name_cstr,
9aabed2d DG	40	class_name_cstr, method_name_cstr, millis, log_level, thread_id);
	41
	42	(*env)->ReleaseStringUTFChars(env, msg, msg_cstr);
	43	(*env)->ReleaseStringUTFChars(env, logger_name, logger_name_cstr);
	44	(*env)->ReleaseStringUTFChars(env, class_name, class_name_cstr);
	45	(*env)->ReleaseStringUTFChars(env, method_name, method_name_cstr);
	46	}
8ab5c06b AM	47
	48	/*
	49	* Tracepoint used by Java applications using the JUL handler.
	50	*/
	51	JNIEXPORT void JNICALL Java_org_lttng_ust_agent_jul_LttngJulApi_tracepointWithContext(JNIEnv *env,
2208d8b5	52	jobject jobj __attribute__((unused)),
8ab5c06b AM	53	jstring msg,
	54	jstring logger_name,
	55	jstring class_name,
	56	jstring method_name,
	57	jlong millis,
	58	jint log_level,
	59	jint thread_id,
b1ca4c5f AM	60	jbyteArray context_info_entries,
b1ca4c5f AM	61	jbyteArray context_info_strings)
8ab5c06b AM	62	{
	63	jboolean iscopy;
	64	const char msg_cstr = (env)->GetStringUTFChars(env, msg, &iscopy);
	65	const char logger_name_cstr = (env)->GetStringUTFChars(env, logger_name, &iscopy);
	66	const char class_name_cstr = (env)->GetStringUTFChars(env, class_name, &iscopy);
	67	const char method_name_cstr = (env)->GetStringUTFChars(env, method_name, &iscopy);
b1ca4c5f AM	68	signed char *context_info_entries_array;
b1ca4c5f AM	69	signed char *context_info_strings_array;
8ab5c06b AM	70
	71	/*
	72	* Write these to the TLS variables, so that the UST callbacks in
	73	* lttng_ust_context.c can access them.
	74	*/
b1ca4c5f AM	75	context_info_entries_array = (*env)->GetByteArrayElements(env, context_info_entries, &iscopy);
	76	lttng_ust_context_info_tls.ctx_entries = (struct lttng_ust_jni_ctx_entry *) context_info_entries_array;
	77	lttng_ust_context_info_tls.ctx_entries_len = (*env)->GetArrayLength(env, context_info_entries);
	78	context_info_strings_array = (*env)->GetByteArrayElements(env, context_info_strings, &iscopy);
	79	lttng_ust_context_info_tls.ctx_strings = context_info_strings_array;
	80	lttng_ust_context_info_tls.ctx_strings_len = (*env)->GetArrayLength(env, context_info_strings);
8ab5c06b	81
cbc06a3b	82	lttng_ust_tracepoint(lttng_jul, event, msg_cstr, logger_name_cstr,
8ab5c06b AM	83	class_name_cstr, method_name_cstr, millis, log_level, thread_id);
8ab5c06b AM	84
b1ca4c5f AM	85	lttng_ust_context_info_tls.ctx_entries = NULL;
	86	lttng_ust_context_info_tls.ctx_entries_len = 0;
	87	lttng_ust_context_info_tls.ctx_strings = NULL;
	88	lttng_ust_context_info_tls.ctx_strings_len = 0;
8ab5c06b AM	89	(*env)->ReleaseStringUTFChars(env, msg, msg_cstr);
	90	(*env)->ReleaseStringUTFChars(env, logger_name, logger_name_cstr);
	91	(*env)->ReleaseStringUTFChars(env, class_name, class_name_cstr);
	92	(*env)->ReleaseStringUTFChars(env, method_name, method_name_cstr);
b1ca4c5f AM	93	(*env)->ReleaseByteArrayElements(env, context_info_entries, context_info_entries_array, 0);
b1ca4c5f AM	94	(*env)->ReleaseByteArrayElements(env, context_info_strings, context_info_strings_array, 0);
8ab5c06b	95	}