Cleanup: remove dead increment of pointer
[lttng-tools.git] / src / common / kernel-ctl / kernel-ctl.h
CommitLineData
ee0326c0 1/*
16421f6e
DG
2 * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca>
3 * Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
ee0326c0 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.
ee0326c0
DG
8 *
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.
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.
ee0326c0
DG
17 */
18
3bd1e081
MD
19#ifndef _LTTNG_KERNEL_CTL_H
20#define _LTTNG_KERNEL_CTL_H
ee0326c0 21
f3ed775e 22#include <lttng/lttng.h>
10a8a223 23#include <common/lttng-kernel.h>
4dbc372b 24#include <common/lttng-kernel-old.h>
00a62084 25#include <common/sessiond-comm/sessiond-comm.h> /* for struct lttng_filter_bytecode */
16421f6e 26
964ccb60
MD
27int kernctl_create_session(int fd);
28int kernctl_open_metadata(int fd, struct lttng_channel_attr *chops);
f3ed775e 29int kernctl_create_channel(int fd, struct lttng_channel_attr *chops);
964ccb60 30int kernctl_create_stream(int fd);
9cb98350 31int kernctl_create_event(int fd, struct lttng_kernel_event *ev);
964ccb60
MD
32int kernctl_add_context(int fd, struct lttng_kernel_context *ctx);
33
f3ed775e
DG
34int kernctl_enable(int fd);
35int kernctl_disable(int fd);
50dc1fa6
DG
36int kernctl_start_session(int fd);
37int kernctl_stop_session(int fd);
964ccb60 38
00a62084
MD
39/* Apply on event FD */
40int kernctl_filter(int fd, struct lttng_filter_bytecode *filter);
41
8d609afd 42int kernctl_tracepoint_list(int fd);
d02666a9 43int kernctl_syscall_list(int fd);
8d609afd 44int kernctl_tracer_version(int fd, struct lttng_kernel_tracer_version *v);
c052142c 45int kernctl_tracer_abi_version(int fd, struct lttng_kernel_tracer_abi_version *v);
f3ed775e 46int kernctl_wait_quiescent(int fd);
16421f6e 47
46820c8b
MD
48/*
49 * kernctl_syscall_mask - Get syscall mask associated to a channel FD.
50 *
51 * The parameter @syscall_mask should initially be either NULL or point
52 * to memory allocated with malloc(3) or realloc(3). When the function
53 * returns, it will point to a memory area of the size required for the
54 * bitmask (using realloc(3) to resize the memory).
55 *
56 * It returns 0 if OK, -1 on error. In all cases (error and OK),
57 * @syscall_mask should be freed by the caller with free(3).
58 */
59int kernctl_syscall_mask(int fd, char **syscall_mask,
60 uint32_t *nr_bits);
61
ccf10263
MD
62/* Process ID tracking can be applied to session FD */
63int kernctl_track_pid(int fd, int pid);
64int kernctl_untrack_pid(int fd, int pid);
a5dfbb9d 65int kernctl_list_tracker_pids(int fd);
ccf10263 66
eded6438 67int kernctl_session_regenerate_metadata(int fd);
c2561365 68int kernctl_session_regenerate_statedump(int fd);
93ec662e 69
964ccb60
MD
70/* Buffer operations */
71
72/* For mmap mode, readable without "get" operation */
73int kernctl_get_mmap_len(int fd, unsigned long *len);
74int kernctl_get_max_subbuf_size(int fd, unsigned long *len);
75
76/*
77 * For mmap mode, operate on the current packet (between get/put or
78 * get_next/put_next).
79 */
80int kernctl_get_mmap_read_offset(int fd, unsigned long *len);
81int kernctl_get_subbuf_size(int fd, unsigned long *len);
82int kernctl_get_padded_subbuf_size(int fd, unsigned long *len);
83
84int kernctl_get_next_subbuf(int fd);
85int kernctl_put_next_subbuf(int fd);
86
87/* snapshot */
88int kernctl_snapshot(int fd);
b007ec59 89int kernctl_snapshot_sample_positions(int fd);
964ccb60
MD
90int kernctl_snapshot_get_consumed(int fd, unsigned long *pos);
91int kernctl_snapshot_get_produced(int fd, unsigned long *pos);
92int kernctl_get_subbuf(int fd, unsigned long *pos);
93int kernctl_put_subbuf(int fd);
94
95int kernctl_buffer_flush(int fd);
f22dd891 96int kernctl_buffer_flush_empty(int fd);
93ec662e 97int kernctl_get_metadata_version(int fd, uint64_t *version);
964ccb60 98
309167d2
JD
99/* index */
100int kernctl_get_timestamp_begin(int fd, uint64_t *timestamp_begin);
101int kernctl_get_timestamp_end(int fd, uint64_t *timestamp_end);
102int kernctl_get_events_discarded(int fd, uint64_t *events_discarded);
103int kernctl_get_content_size(int fd, uint64_t *content_size);
104int kernctl_get_packet_size(int fd, uint64_t *packet_size);
105int kernctl_get_stream_id(int fd, uint64_t *stream_id);
d3e2ba59 106int kernctl_get_current_timestamp(int fd, uint64_t *ts);
fb83fe64 107int kernctl_get_sequence_number(int fd, uint64_t *seq);
000fa86f 108int kernctl_get_instance_id(int fd, uint64_t *seq);
309167d2 109
3bd1e081 110#endif /* _LTTNG_KERNEL_CTL_H */
This page took 0.054278 seconds and 4 git commands to generate.