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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 |
27 | int kernctl_create_session(int fd); |
28 | int kernctl_open_metadata(int fd, struct lttng_channel_attr *chops); | |
f3ed775e | 29 | int kernctl_create_channel(int fd, struct lttng_channel_attr *chops); |
964ccb60 | 30 | int kernctl_create_stream(int fd); |
9cb98350 | 31 | int kernctl_create_event(int fd, struct lttng_kernel_event *ev); |
964ccb60 MD |
32 | int kernctl_add_context(int fd, struct lttng_kernel_context *ctx); |
33 | ||
f3ed775e DG |
34 | int kernctl_enable(int fd); |
35 | int kernctl_disable(int fd); | |
50dc1fa6 DG |
36 | int kernctl_start_session(int fd); |
37 | int kernctl_stop_session(int fd); | |
964ccb60 | 38 | |
00a62084 MD |
39 | /* Apply on event FD */ |
40 | int kernctl_filter(int fd, struct lttng_filter_bytecode *filter); | |
41 | ||
8d609afd | 42 | int kernctl_tracepoint_list(int fd); |
d02666a9 | 43 | int kernctl_syscall_list(int fd); |
8d609afd | 44 | int kernctl_tracer_version(int fd, struct lttng_kernel_tracer_version *v); |
c052142c | 45 | int kernctl_tracer_abi_version(int fd, struct lttng_kernel_tracer_abi_version *v); |
f3ed775e | 46 | int 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 | */ | |
59 | int 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 */ |
63 | int kernctl_track_pid(int fd, int pid); | |
64 | int kernctl_untrack_pid(int fd, int pid); | |
a5dfbb9d | 65 | int kernctl_list_tracker_pids(int fd); |
ccf10263 | 66 | |
eded6438 | 67 | int kernctl_session_regenerate_metadata(int fd); |
c2561365 | 68 | int kernctl_session_regenerate_statedump(int fd); |
93ec662e | 69 | |
964ccb60 MD |
70 | /* Buffer operations */ |
71 | ||
72 | /* For mmap mode, readable without "get" operation */ | |
73 | int kernctl_get_mmap_len(int fd, unsigned long *len); | |
74 | int 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 | */ | |
80 | int kernctl_get_mmap_read_offset(int fd, unsigned long *len); | |
81 | int kernctl_get_subbuf_size(int fd, unsigned long *len); | |
82 | int kernctl_get_padded_subbuf_size(int fd, unsigned long *len); | |
83 | ||
84 | int kernctl_get_next_subbuf(int fd); | |
85 | int kernctl_put_next_subbuf(int fd); | |
86 | ||
87 | /* snapshot */ | |
88 | int kernctl_snapshot(int fd); | |
b007ec59 | 89 | int kernctl_snapshot_sample_positions(int fd); |
964ccb60 MD |
90 | int kernctl_snapshot_get_consumed(int fd, unsigned long *pos); |
91 | int kernctl_snapshot_get_produced(int fd, unsigned long *pos); | |
92 | int kernctl_get_subbuf(int fd, unsigned long *pos); | |
93 | int kernctl_put_subbuf(int fd); | |
94 | ||
95 | int kernctl_buffer_flush(int fd); | |
f22dd891 | 96 | int kernctl_buffer_flush_empty(int fd); |
93ec662e | 97 | int kernctl_get_metadata_version(int fd, uint64_t *version); |
964ccb60 | 98 | |
309167d2 JD |
99 | /* index */ |
100 | int kernctl_get_timestamp_begin(int fd, uint64_t *timestamp_begin); | |
101 | int kernctl_get_timestamp_end(int fd, uint64_t *timestamp_end); | |
102 | int kernctl_get_events_discarded(int fd, uint64_t *events_discarded); | |
103 | int kernctl_get_content_size(int fd, uint64_t *content_size); | |
104 | int kernctl_get_packet_size(int fd, uint64_t *packet_size); | |
105 | int kernctl_get_stream_id(int fd, uint64_t *stream_id); | |
d3e2ba59 | 106 | int kernctl_get_current_timestamp(int fd, uint64_t *ts); |
fb83fe64 | 107 | int kernctl_get_sequence_number(int fd, uint64_t *seq); |
000fa86f | 108 | int kernctl_get_instance_id(int fd, uint64_t *seq); |
309167d2 | 109 | |
3bd1e081 | 110 | #endif /* _LTTNG_KERNEL_CTL_H */ |