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38cd0ad9 JR |
1 | /* |
2 | * Copyright (C) 2019 - Jonathan Rajotte <jonathan.rajotte-julien@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 | ||
18 | #define _LGPL_SOURCE | |
19 | #include <assert.h> | |
20 | #include <inttypes.h> | |
21 | #include <string.h> | |
22 | #include <unistd.h> | |
23 | ||
24 | #include <common/defaults.h> | |
25 | #include <common/error.h> | |
26 | #include <common/utils.h> | |
27 | ||
28 | #include "clear.h" | |
29 | #include "session.h" | |
30 | #include "ust-app.h" | |
31 | #include "kernel.h" | |
32 | ||
33 | ||
34 | int cmd_clear_session(struct ltt_session *session) | |
35 | { | |
36 | int ret; | |
37 | ||
38 | if (!session->has_been_started) { | |
39 | /* Nothing to be cleared, do not warn */ | |
40 | ret = LTTNG_OK; | |
41 | goto end; | |
42 | } | |
43 | ||
c7496bc7 MD |
44 | if (session->ust_session) { |
45 | switch (session->ust_session->buffer_type) { | |
46 | case LTTNG_BUFFER_PER_PID: | |
47 | ERR("Clear command not supported for per-pid buffers."); | |
48 | ret = LTTNG_ERR_CLEAR_NOT_AVAILABLE; | |
49 | goto error; | |
50 | case LTTNG_BUFFER_PER_UID: | |
51 | case LTTNG_BUFFER_GLOBAL: | |
52 | break; | |
53 | } | |
38cd0ad9 JR |
54 | } |
55 | ||
c7496bc7 MD |
56 | /* |
57 | * Clear kernel and UST session buffers and local files (if any). | |
58 | */ | |
38cd0ad9 JR |
59 | if (session->kernel_session) { |
60 | ret = kernel_clear_session(session); | |
61 | if (ret != LTTNG_OK) { | |
62 | goto error; | |
63 | } | |
64 | } | |
65 | if (session->ust_session) { | |
66 | ret = ust_app_clear_session(session); | |
67 | if (ret != LTTNG_OK) { | |
68 | goto error; | |
69 | } | |
70 | } | |
c7496bc7 MD |
71 | |
72 | /* | |
73 | * Clear remote (relayd) session files. | |
74 | */ | |
75 | ret = consumer_clear_session(session); | |
76 | if (ret < 0) { | |
77 | ret = LTTNG_ERR_CLEAR_FAIL_CONSUMER; | |
78 | goto error; | |
79 | } | |
80 | ret = LTTNG_OK; | |
38cd0ad9 JR |
81 | error: |
82 | end: | |
83 | return ret; | |
84 | } |