--- /dev/null
+/*
+ * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License, version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This program 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 General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef _JUL_COMM
+#define _JUL_COMM
+
+#define _GNU_SOURCE
+#include <stdint.h>
+
+#include <lttng/lttng.h>
+
+/*
+ * Command value pass in the header.
+ */
+enum lttcomm_jul_command {
+ JUL_CMD_LIST = 1,
+ JUL_CMD_ENABLE = 2,
+ JUL_CMD_DISABLE = 3,
+};
+
+/*
+ * Return code from the Java agent.
+ */
+enum lttcomm_jul_ret_code {
+ JUL_RET_CODE_SUCCESS = 1,
+ JUL_RET_CODE_INVALID = 2,
+ JUL_RET_CODE_UNKNOWN_NAME = 3,
+};
+
+/*
+ * JUL application communication header.
+ */
+struct lttcomm_jul_hdr {
+ uint64_t data_size; /* data size following this header */
+ uint32_t cmd; /* Enum of JUL command. */
+ uint32_t cmd_version; /* command version */
+} LTTNG_PACKED;
+
+/*
+ * Enable event command payload.
+ */
+struct lttcomm_jul_enable {
+ char name[LTTNG_SYMBOL_NAME_LEN];
+} LTTNG_PACKED;
+
+/*
+ * Disable event command payload.
+ */
+struct lttcomm_jul_disable {
+ char name[LTTNG_SYMBOL_NAME_LEN];
+} LTTNG_PACKED;
+
+/*
+ * Generic reply coming from the Java Agent.
+ */
+struct lttcomm_jul_generic_reply {
+ uint32_t ret_code;
+} LTTNG_PACKED;
+
+/*
+ * List command reply header.
+ */
+struct lttcomm_jul_list_reply_hdr {
+ uint32_t ret_code;
+ uint32_t data_size;
+} LTTNG_PACKED;
+
+/*
+ * List command reply payload coming from the Java Agent.
+ */
+struct lttcomm_jul_list_reply {
+ uint32_t nb_event;
+ /* List of event name each of them ending by a NULL byte. */
+ char payload[];
+} LTTNG_PACKED;
+
+#endif /* _JUL_COMM */