Commit | Line | Data |
---|---|---|
8e68d1c8 | 1 | /* |
996b65c8 | 2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> |
1e307fab | 3 | * Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
8e68d1c8 | 4 | * |
d14d33bf AM |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License, version 2 only, | |
7 | * as published by the Free Software Foundation. | |
8e68d1c8 | 8 | * |
d14d33bf AM |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
8e68d1c8 | 13 | * |
d14d33bf AM |
14 | * You should have received a copy of the GNU General Public License along |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
8e68d1c8 DG |
17 | */ |
18 | ||
6c1c0768 | 19 | #define _LGPL_SOURCE |
8e68d1c8 | 20 | #include <stdlib.h> |
8e68d1c8 DG |
21 | #include <unistd.h> |
22 | ||
db758600 | 23 | #include <common/error.h> |
7272acf5 | 24 | |
8e68d1c8 | 25 | #include "utils.h" |
0b2dc8df MD |
26 | #include "lttng-sessiond.h" |
27 | ||
28 | int ht_cleanup_pipe[2] = { -1, -1 }; | |
8e68d1c8 | 29 | |
54d01ffb DG |
30 | /* |
31 | * Write to writable pipe used to notify a thread. | |
32 | */ | |
33 | int notify_thread_pipe(int wpipe) | |
34 | { | |
6cd525e8 | 35 | ssize_t ret; |
54d01ffb | 36 | |
2f77fc4b DG |
37 | /* Ignore if the pipe is invalid. */ |
38 | if (wpipe < 0) { | |
39 | return 0; | |
40 | } | |
41 | ||
6cd525e8 MD |
42 | ret = lttng_write(wpipe, "!", 1); |
43 | if (ret < 1) { | |
7272acf5 | 44 | PERROR("write poll pipe"); |
54d01ffb DG |
45 | } |
46 | ||
6cd525e8 | 47 | return (int) ret; |
54d01ffb DG |
48 | } |
49 | ||
0b2dc8df MD |
50 | void ht_cleanup_push(struct lttng_ht *ht) |
51 | { | |
6cd525e8 | 52 | ssize_t ret; |
0b2dc8df MD |
53 | int fd = ht_cleanup_pipe[1]; |
54 | ||
e7e84b72 JG |
55 | if (!ht) { |
56 | return; | |
57 | } | |
0b2dc8df MD |
58 | if (fd < 0) |
59 | return; | |
6cd525e8 MD |
60 | ret = lttng_write(fd, &ht, sizeof(ht)); |
61 | if (ret < sizeof(ht)) { | |
0b2dc8df MD |
62 | PERROR("write ht cleanup pipe %d", fd); |
63 | if (ret < 0) { | |
64 | ret = -errno; | |
65 | } | |
66 | goto error; | |
67 | } | |
68 | ||
69 | /* All good. Don't send back the write positive ret value. */ | |
70 | ret = 0; | |
71 | error: | |
72 | assert(!ret); | |
73 | } | |
19a97244 PP |
74 | |
75 | int loglevels_match(int a_loglevel_type, int a_loglevel_value, | |
76 | int b_loglevel_type, int b_loglevel_value, int loglevel_all_type) | |
77 | { | |
78 | int match = 1; | |
79 | ||
80 | if (a_loglevel_type == b_loglevel_type) { | |
81 | /* Same loglevel type. */ | |
82 | if (b_loglevel_type != loglevel_all_type) { | |
83 | /* | |
84 | * Loglevel value must also match since the loglevel | |
85 | * type is not all. | |
86 | */ | |
87 | if (a_loglevel_value != b_loglevel_value) { | |
88 | match = 0; | |
89 | } | |
90 | } | |
91 | } else { | |
92 | /* Loglevel type is different: no match. */ | |
93 | match = 0; | |
94 | } | |
95 | ||
96 | return match; | |
97 | } |