Docs: Grammar fix in agent header
[lttng-tools.git] / src / common / sessiond-comm / agent.h
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1/*
2 * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com>
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License, version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program; if not, write to the Free Software Foundation, Inc., 51
15 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
16 */
17
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18#ifndef AGENT_COMM
19#define AGENT_COMM
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20
21#define _GNU_SOURCE
22#include <stdint.h>
23
24#include <lttng/lttng.h>
25
26/*
2f2540d7 27 * Command value passed in the header.
f20baf8e 28 */
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29enum lttcomm_agent_command {
30 AGENT_CMD_LIST = 1,
31 AGENT_CMD_ENABLE = 2,
32 AGENT_CMD_DISABLE = 3,
33 AGENT_CMD_REG_DONE = 4, /* End registration process. */
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34};
35
36/*
37 * Return code from the Java agent.
38 */
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39enum lttcomm_agent_ret_code {
40 AGENT_RET_CODE_SUCCESS = 1,
41 AGENT_RET_CODE_INVALID = 2,
42 AGENT_RET_CODE_UNKNOWN_NAME = 3,
23c2bd47 43 AGENT_RET_CODE_NR,
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44};
45
46/*
022d91ba 47 * Agent application communication header.
f20baf8e 48 */
022d91ba 49struct lttcomm_agent_hdr {
f20baf8e 50 uint64_t data_size; /* data size following this header */
022d91ba 51 uint32_t cmd; /* Enum of agent command. */
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52 uint32_t cmd_version; /* command version */
53} LTTNG_PACKED;
54
55/*
56 * Enable event command payload.
57 */
022d91ba 58struct lttcomm_agent_enable {
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59 uint32_t loglevel;
60 uint32_t loglevel_type;
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61 char name[LTTNG_SYMBOL_NAME_LEN];
62} LTTNG_PACKED;
63
64/*
65 * Disable event command payload.
66 */
022d91ba 67struct lttcomm_agent_disable {
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68 char name[LTTNG_SYMBOL_NAME_LEN];
69} LTTNG_PACKED;
70
71/*
72 * Generic reply coming from the Java Agent.
73 */
022d91ba 74struct lttcomm_agent_generic_reply {
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75 uint32_t ret_code;
76} LTTNG_PACKED;
77
78/*
79 * List command reply header.
80 */
022d91ba 81struct lttcomm_agent_list_reply_hdr {
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82 uint32_t ret_code;
83 uint32_t data_size;
84} LTTNG_PACKED;
85
86/*
87 * List command reply payload coming from the Java Agent.
88 */
022d91ba 89struct lttcomm_agent_list_reply {
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90 uint32_t nb_event;
91 /* List of event name each of them ending by a NULL byte. */
92 char payload[];
93} LTTNG_PACKED;
94
022d91ba 95#endif /* AGENT_COMM */
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