Commit | Line | Data |
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ee0326c0 | 1 | /* |
ab5be9fa MJ |
2 | * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca> |
3 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
ee0326c0 | 4 | * |
ab5be9fa | 5 | * SPDX-License-Identifier: GPL-2.0-only |
ee0326c0 | 6 | * |
ee0326c0 DG |
7 | */ |
8 | ||
3bd1e081 MD |
9 | #ifndef _LTTNG_KERNEL_CTL_H |
10 | #define _LTTNG_KERNEL_CTL_H | |
ee0326c0 | 11 | |
41dc93d9 JG |
12 | #include <stdbool.h> |
13 | ||
f3ed775e | 14 | #include <lttng/lttng.h> |
10a8a223 | 15 | #include <common/lttng-kernel.h> |
4dbc372b | 16 | #include <common/lttng-kernel-old.h> |
00a62084 | 17 | #include <common/sessiond-comm/sessiond-comm.h> /* for struct lttng_filter_bytecode */ |
16421f6e | 18 | |
964ccb60 MD |
19 | int kernctl_create_session(int fd); |
20 | int kernctl_open_metadata(int fd, struct lttng_channel_attr *chops); | |
f3ed775e | 21 | int kernctl_create_channel(int fd, struct lttng_channel_attr *chops); |
964ccb60 | 22 | int kernctl_create_stream(int fd); |
9cb98350 | 23 | int kernctl_create_event(int fd, struct lttng_kernel_event *ev); |
964ccb60 MD |
24 | int kernctl_add_context(int fd, struct lttng_kernel_context *ctx); |
25 | ||
f3ed775e DG |
26 | int kernctl_enable(int fd); |
27 | int kernctl_disable(int fd); | |
50dc1fa6 DG |
28 | int kernctl_start_session(int fd); |
29 | int kernctl_stop_session(int fd); | |
964ccb60 | 30 | |
cfb1c9bc JR |
31 | int kernctl_create_event_notifier_group(int fd); |
32 | ||
33 | /* Apply on event notifier_group file descriptor. */ | |
34 | int kernctl_create_event_notifier_group_notification_fd(int fd); | |
35 | int kernctl_create_event_notifier(int fd, | |
36 | const struct lttng_kernel_event_notifier *event_notifier); | |
37 | ||
38 | /* Apply on event file descriptor. */ | |
2b00d462 | 39 | int kernctl_filter(int fd, const struct lttng_bytecode *filter); |
1ab8c2ad | 40 | int kernctl_add_callsite(int fd, struct lttng_kernel_event_callsite *callsite); |
00a62084 | 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 | 48 | /* |
cfb1c9bc JR |
49 | * kernctl_syscall_mask - Get syscall mask associated to a channel file |
50 | * descriptor. | |
46820c8b MD |
51 | * |
52 | * The parameter @syscall_mask should initially be either NULL or point | |
53 | * to memory allocated with malloc(3) or realloc(3). When the function | |
54 | * returns, it will point to a memory area of the size required for the | |
55 | * bitmask (using realloc(3) to resize the memory). | |
56 | * | |
57 | * It returns 0 if OK, -1 on error. In all cases (error and OK), | |
58 | * @syscall_mask should be freed by the caller with free(3). | |
59 | */ | |
60 | int kernctl_syscall_mask(int fd, char **syscall_mask, | |
61 | uint32_t *nr_bits); | |
62 | ||
cfb1c9bc | 63 | /* Process ID tracking can be applied to session file descriptor. */ |
ccf10263 MD |
64 | int kernctl_track_pid(int fd, int pid); |
65 | int kernctl_untrack_pid(int fd, int pid); | |
a5dfbb9d | 66 | int kernctl_list_tracker_pids(int fd); |
ccf10263 | 67 | |
159b042f JG |
68 | int kernctl_track_id(int fd, enum lttng_process_attr process_attr, int id); |
69 | int kernctl_untrack_id(int fd, enum lttng_process_attr process_attr, int id); | |
70 | int kernctl_list_tracker_ids(int fd, enum lttng_process_attr process_attr); | |
d01c0e56 | 71 | |
eded6438 | 72 | int kernctl_session_regenerate_metadata(int fd); |
c2561365 | 73 | int kernctl_session_regenerate_statedump(int fd); |
8ff4109e | 74 | int kernctl_session_set_name(int fd, const char *name); |
e04b2181 | 75 | int kernctl_session_set_creation_time(int fd, time_t time); |
93ec662e | 76 | |
964ccb60 MD |
77 | /* Buffer operations */ |
78 | ||
79 | /* For mmap mode, readable without "get" operation */ | |
80 | int kernctl_get_mmap_len(int fd, unsigned long *len); | |
81 | int kernctl_get_max_subbuf_size(int fd, unsigned long *len); | |
82 | ||
83 | /* | |
84 | * For mmap mode, operate on the current packet (between get/put or | |
85 | * get_next/put_next). | |
86 | */ | |
87 | int kernctl_get_mmap_read_offset(int fd, unsigned long *len); | |
88 | int kernctl_get_subbuf_size(int fd, unsigned long *len); | |
89 | int kernctl_get_padded_subbuf_size(int fd, unsigned long *len); | |
90 | ||
91 | int kernctl_get_next_subbuf(int fd); | |
92 | int kernctl_put_next_subbuf(int fd); | |
93 | ||
94 | /* snapshot */ | |
95 | int kernctl_snapshot(int fd); | |
b007ec59 | 96 | int kernctl_snapshot_sample_positions(int fd); |
964ccb60 MD |
97 | int kernctl_snapshot_get_consumed(int fd, unsigned long *pos); |
98 | int kernctl_snapshot_get_produced(int fd, unsigned long *pos); | |
99 | int kernctl_get_subbuf(int fd, unsigned long *pos); | |
100 | int kernctl_put_subbuf(int fd); | |
101 | ||
102 | int kernctl_buffer_flush(int fd); | |
f22dd891 | 103 | int kernctl_buffer_flush_empty(int fd); |
99930a9d | 104 | int kernctl_buffer_clear(int fd); |
93ec662e | 105 | int kernctl_get_metadata_version(int fd, uint64_t *version); |
8024cc8c | 106 | int kernctl_metadata_cache_dump(int fd); |
41dc93d9 | 107 | int kernctl_get_next_subbuf_metadata_check(int fd, bool *consistent); |
964ccb60 | 108 | |
309167d2 JD |
109 | /* index */ |
110 | int kernctl_get_timestamp_begin(int fd, uint64_t *timestamp_begin); | |
111 | int kernctl_get_timestamp_end(int fd, uint64_t *timestamp_end); | |
112 | int kernctl_get_events_discarded(int fd, uint64_t *events_discarded); | |
113 | int kernctl_get_content_size(int fd, uint64_t *content_size); | |
114 | int kernctl_get_packet_size(int fd, uint64_t *packet_size); | |
115 | int kernctl_get_stream_id(int fd, uint64_t *stream_id); | |
d3e2ba59 | 116 | int kernctl_get_current_timestamp(int fd, uint64_t *ts); |
fb83fe64 | 117 | int kernctl_get_sequence_number(int fd, uint64_t *seq); |
000fa86f | 118 | int kernctl_get_instance_id(int fd, uint64_t *seq); |
309167d2 | 119 | |
3bd1e081 | 120 | #endif /* _LTTNG_KERNEL_CTL_H */ |