[lttng-ust.git] / liblttng-ust-java-agent / jni / log4j / lttng_ust_log4j.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_log4j_LttngLog4jApi.h"

#define TRACEPOINT_DEFINE
#define TRACEPOINT_CREATE_PROBES
#include "lttng_ust_log4j.h"
#include "../common/lttng_ust_context.h"

/*
 * Deprecated function from before the context information was passed.
 */
JNIEXPORT void JNICALL Java_org_lttng_ust_agent_log4j_LttngLog4jApi_tracepoint(JNIEnv *env,
						jobject jobj,
						jstring msg,
						jstring logger_name,
						jstring class_name,
						jstring method_name,
						jstring file_name,
						jint line_number,
						jlong timestamp,
						jint loglevel,
						jstring thread_name)
{
	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);
	const char *file_name_cstr = (*env)->GetStringUTFChars(env, file_name, &iscopy);
	const char *thread_name_cstr = (*env)->GetStringUTFChars(env, thread_name, &iscopy);

	tracepoint(lttng_log4j, event, msg_cstr, logger_name_cstr,
		   class_name_cstr, method_name_cstr, file_name_cstr,
		   line_number, timestamp, loglevel, thread_name_cstr);

	(*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)->ReleaseStringUTFChars(env, file_name, file_name_cstr);
	(*env)->ReleaseStringUTFChars(env, thread_name, thread_name_cstr);
}

/*
 * Tracepoint used by Java applications using the log4j handler.
 */
JNIEXPORT void JNICALL Java_org_lttng_ust_agent_log4j_LttngLog4jApi_tracepointWithContext(JNIEnv *env,
						jobject jobj,
						jstring msg,
						jstring logger_name,
						jstring class_name,
						jstring method_name,
						jstring file_name,
						jint line_number,
						jlong timestamp,
						jint loglevel,
						jstring thread_name,
						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);
	const char *file_name_cstr = (*env)->GetStringUTFChars(env, file_name, &iscopy);
	const char *thread_name_cstr = (*env)->GetStringUTFChars(env, thread_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);

	tracepoint(lttng_log4j, event, msg_cstr, logger_name_cstr,
		   class_name_cstr, method_name_cstr, file_name_cstr,
		   line_number, timestamp, loglevel, thread_name_cstr);

	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)->ReleaseStringUTFChars(env, file_name, file_name_cstr);
	(*env)->ReleaseStringUTFChars(env, thread_name, thread_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_log4j_LttngLog4jApi.h"
43e5396b DG	11
	12	#define TRACEPOINT_DEFINE
	13	#define TRACEPOINT_CREATE_PROBES
501f6777	14	#include "lttng_ust_log4j.h"
8ab5c06b	15	#include "../common/lttng_ust_context.h"
43e5396b	16
9aabed2d	17	/*
8ab5c06b	18	* Deprecated function from before the context information was passed.
9aabed2d	19	*/
6e7bc9e0	20	JNIEXPORT void JNICALL Java_org_lttng_ust_agent_log4j_LttngLog4jApi_tracepoint(JNIEnv *env,
43e5396b DG	21	jobject jobj,
	22	jstring msg,
	23	jstring logger_name,
	24	jstring class_name,
	25	jstring method_name,
501f6777 CB	26	jstring file_name,
	27	jint line_number,
	28	jlong timestamp,
	29	jint loglevel,
	30	jstring thread_name)
43e5396b DG	31	{
	32	jboolean iscopy;
	33	const char msg_cstr = (env)->GetStringUTFChars(env, msg, &iscopy);
	34	const char logger_name_cstr = (env)->GetStringUTFChars(env, logger_name, &iscopy);
	35	const char class_name_cstr = (env)->GetStringUTFChars(env, class_name, &iscopy);
	36	const char method_name_cstr = (env)->GetStringUTFChars(env, method_name, &iscopy);
501f6777 CB	37	const char file_name_cstr = (env)->GetStringUTFChars(env, file_name, &iscopy);
501f6777 CB	38	const char thread_name_cstr = (env)->GetStringUTFChars(env, thread_name, &iscopy);
43e5396b	39
8286ff50	40	tracepoint(lttng_log4j, event, msg_cstr, logger_name_cstr,
501f6777 CB	41	class_name_cstr, method_name_cstr, file_name_cstr,
501f6777 CB	42	line_number, timestamp, loglevel, thread_name_cstr);
9aabed2d DG	43
	44	(*env)->ReleaseStringUTFChars(env, msg, msg_cstr);
	45	(*env)->ReleaseStringUTFChars(env, logger_name, logger_name_cstr);
	46	(*env)->ReleaseStringUTFChars(env, class_name, class_name_cstr);
	47	(*env)->ReleaseStringUTFChars(env, method_name, method_name_cstr);
501f6777 CB	48	(*env)->ReleaseStringUTFChars(env, file_name, file_name_cstr);
501f6777 CB	49	(*env)->ReleaseStringUTFChars(env, thread_name, thread_name_cstr);
9aabed2d DG	50	}
9aabed2d DG	51
8ab5c06b AM	52	/*
	53	* Tracepoint used by Java applications using the log4j handler.
	54	*/
	55	JNIEXPORT void JNICALL Java_org_lttng_ust_agent_log4j_LttngLog4jApi_tracepointWithContext(JNIEnv *env,
	56	jobject jobj,
	57	jstring msg,
	58	jstring logger_name,
	59	jstring class_name,
	60	jstring method_name,
	61	jstring file_name,
	62	jint line_number,
	63	jlong timestamp,
	64	jint loglevel,
	65	jstring thread_name,
b1ca4c5f AM	66	jbyteArray context_info_entries,
b1ca4c5f AM	67	jbyteArray context_info_strings)
8ab5c06b AM	68	{
	69	jboolean iscopy;
	70	const char msg_cstr = (env)->GetStringUTFChars(env, msg, &iscopy);
	71	const char logger_name_cstr = (env)->GetStringUTFChars(env, logger_name, &iscopy);
	72	const char class_name_cstr = (env)->GetStringUTFChars(env, class_name, &iscopy);
	73	const char method_name_cstr = (env)->GetStringUTFChars(env, method_name, &iscopy);
	74	const char file_name_cstr = (env)->GetStringUTFChars(env, file_name, &iscopy);
	75	const char thread_name_cstr = (env)->GetStringUTFChars(env, thread_name, &iscopy);
b1ca4c5f AM	76	signed char *context_info_entries_array;
b1ca4c5f AM	77	signed char *context_info_strings_array;
8ab5c06b AM	78
	79	/*
	80	* Write these to the TLS variables, so that the UST callbacks in
	81	* lttng_ust_context.c can access them.
	82	*/
b1ca4c5f AM	83	context_info_entries_array = (*env)->GetByteArrayElements(env, context_info_entries, &iscopy);
	84	lttng_ust_context_info_tls.ctx_entries = (struct lttng_ust_jni_ctx_entry *) context_info_entries_array;
	85	lttng_ust_context_info_tls.ctx_entries_len = (*env)->GetArrayLength(env, context_info_entries);
	86	context_info_strings_array = (*env)->GetByteArrayElements(env, context_info_strings, &iscopy);
	87	lttng_ust_context_info_tls.ctx_strings = context_info_strings_array;
	88	lttng_ust_context_info_tls.ctx_strings_len = (*env)->GetArrayLength(env, context_info_strings);
8ab5c06b AM	89
	90	tracepoint(lttng_log4j, event, msg_cstr, logger_name_cstr,
	91	class_name_cstr, method_name_cstr, file_name_cstr,
	92	line_number, timestamp, loglevel, thread_name_cstr);
	93
b1ca4c5f AM	94	lttng_ust_context_info_tls.ctx_entries = NULL;
	95	lttng_ust_context_info_tls.ctx_entries_len = 0;
	96	lttng_ust_context_info_tls.ctx_strings = NULL;
	97	lttng_ust_context_info_tls.ctx_strings_len = 0;
8ab5c06b AM	98	(*env)->ReleaseStringUTFChars(env, msg, msg_cstr);
	99	(*env)->ReleaseStringUTFChars(env, logger_name, logger_name_cstr);
	100	(*env)->ReleaseStringUTFChars(env, class_name, class_name_cstr);
	101	(*env)->ReleaseStringUTFChars(env, method_name, method_name_cstr);
	102	(*env)->ReleaseStringUTFChars(env, file_name, file_name_cstr);
	103	(*env)->ReleaseStringUTFChars(env, thread_name, thread_name_cstr);
b1ca4c5f AM	104	(*env)->ReleaseByteArrayElements(env, context_info_entries, context_info_entries_array, 0);
b1ca4c5f AM	105	(*env)->ReleaseByteArrayElements(env, context_info_strings, context_info_strings_array, 0);
8ab5c06b	106	}