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20fe2104 DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
d14d33bf AM |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License, version 2 only, | |
6 | * as published by the Free Software Foundation. | |
20fe2104 DG |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
d14d33bf | 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
20fe2104 DG |
11 | * GNU General Public License for more details. |
12 | * | |
d14d33bf AM |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
20fe2104 DG |
16 | */ |
17 | ||
18 | #ifndef _LTT_KERNEL_CTL_H | |
19 | #define _LTT_KERNEL_CTL_H | |
20 | ||
8c0faa1d | 21 | #include "session.h" |
6dc3064a | 22 | #include "snapshot.h" |
62499ad6 | 23 | #include "trace-kernel.h" |
f34daff7 | 24 | |
2ef84c95 DG |
25 | /* |
26 | * Default size for the event list when kernel_list_events is called. This size | |
050349bb DG |
27 | * value is based on the initial LTTng 2.0 version set of tracepoints. |
28 | * | |
29 | * This is NOT an upper bound because if the real event list size is bigger, | |
30 | * dynamic reallocation is performed. | |
2ef84c95 | 31 | */ |
6725fe19 | 32 | #define KERNEL_EVENT_INIT_LIST_SIZE 64 |
a5dfbb9d | 33 | #define KERNEL_TRACKER_PIDS_INIT_LIST_SIZE 64 |
2ef84c95 | 34 | |
d65106b1 | 35 | int kernel_add_channel_context(struct ltt_kernel_channel *chan, |
645328ae | 36 | struct ltt_kernel_context *ctx); |
7d268848 | 37 | int kernel_create_session(struct ltt_session *session); |
b082db07 | 38 | int kernel_create_channel(struct ltt_kernel_session *session, |
fdd9eb17 | 39 | struct lttng_channel *chan); |
00a62084 MD |
40 | int kernel_create_event(struct lttng_event *ev, struct ltt_kernel_channel *channel, |
41 | char *filter_expression, struct lttng_filter_bytecode *filter); | |
26cc6b4e | 42 | int kernel_disable_channel(struct ltt_kernel_channel *chan); |
19e70852 DG |
43 | int kernel_disable_event(struct ltt_kernel_event *event); |
44 | int kernel_enable_event(struct ltt_kernel_event *event); | |
d36b8583 | 45 | int kernel_enable_channel(struct ltt_kernel_channel *chan); |
ccf10263 MD |
46 | int kernel_track_pid(struct ltt_kernel_session *session, int pid); |
47 | int kernel_untrack_pid(struct ltt_kernel_session *session, int pid); | |
a4b92340 | 48 | int kernel_open_metadata(struct ltt_kernel_session *session); |
f3ed775e DG |
49 | int kernel_open_metadata_stream(struct ltt_kernel_session *session); |
50 | int kernel_open_channel_stream(struct ltt_kernel_channel *channel); | |
51 | int kernel_flush_buffer(struct ltt_kernel_channel *channel); | |
52 | int kernel_metadata_flush_buffer(int fd); | |
8c0faa1d DG |
53 | int kernel_start_session(struct ltt_kernel_session *session); |
54 | int kernel_stop_session(struct ltt_kernel_session *session); | |
7d268848 MD |
55 | ssize_t kernel_list_events(struct lttng_event **event_list); |
56 | void kernel_wait_quiescent(void); | |
57 | int kernel_validate_version(struct lttng_kernel_tracer_version *kernel_tracer_version, | |
88076e89 | 58 | struct lttng_kernel_tracer_abi_version *kernel_tracer_abi_version); |
2f77fc4b | 59 | void kernel_destroy_session(struct ltt_kernel_session *ksess); |
d070c424 | 60 | void kernel_free_session(struct ltt_kernel_session *ksess); |
fb5f35b6 | 61 | void kernel_destroy_channel(struct ltt_kernel_channel *kchan); |
fb9a95c4 JG |
62 | enum lttng_error_code kernel_snapshot_record( |
63 | struct ltt_kernel_session *ksess, | |
348a81dc | 64 | const struct consumer_output *output, int wait, |
d07ceecd | 65 | uint64_t nb_packets_per_stream); |
834978fd | 66 | int kernel_syscall_mask(int chan_fd, char **syscall_mask, uint32_t *nr_bits); |
d5a1b7aa | 67 | enum lttng_error_code kernel_rotate_session(struct ltt_session *session); |
20fe2104 | 68 | |
335a95b7 | 69 | int init_kernel_workarounds(void); |
a5dfbb9d MD |
70 | ssize_t kernel_list_tracker_pids(struct ltt_kernel_session *session, |
71 | int **_pids); | |
7d268848 MD |
72 | int kernel_supports_ring_buffer_snapshot_sample_positions(void); |
73 | int init_kernel_tracer(void); | |
74 | void cleanup_kernel_tracer(void); | |
75 | bool kernel_tracer_is_initialized(void); | |
335a95b7 | 76 | |
d2956687 JG |
77 | enum lttng_error_code kernel_create_channel_subdirectories( |
78 | const struct ltt_kernel_session *ksess); | |
79 | ||
20fe2104 | 80 | #endif /* _LTT_KERNEL_CTL_H */ |