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 | |
7966af57 SM |
19 | #ifdef __cplusplus |
20 | extern "C" { | |
21 | #endif | |
22 | ||
964ccb60 MD |
23 | int kernctl_create_session(int fd); |
24 | int kernctl_open_metadata(int fd, struct lttng_channel_attr *chops); | |
f3ed775e | 25 | int kernctl_create_channel(int fd, struct lttng_channel_attr *chops); |
964ccb60 | 26 | int kernctl_create_stream(int fd); |
b8e2fb80 FD |
27 | int kernctl_create_event(int fd, struct lttng_kernel_abi_event *ev); |
28 | int kernctl_add_context(int fd, struct lttng_kernel_abi_context *ctx); | |
964ccb60 | 29 | |
f3ed775e DG |
30 | int kernctl_enable(int fd); |
31 | int kernctl_disable(int fd); | |
50dc1fa6 DG |
32 | int kernctl_start_session(int fd); |
33 | int kernctl_stop_session(int fd); | |
964ccb60 | 34 | |
cfb1c9bc JR |
35 | int kernctl_create_event_notifier_group(int fd); |
36 | ||
37 | /* Apply on event notifier_group file descriptor. */ | |
38 | int kernctl_create_event_notifier_group_notification_fd(int fd); | |
90aa04a1 | 39 | int kernctl_create_event_notifier_group_error_counter(int fd, |
b8e2fb80 | 40 | const struct lttng_kernel_abi_counter_conf *error_counter_conf); |
cfb1c9bc | 41 | int kernctl_create_event_notifier(int fd, |
b8e2fb80 | 42 | const struct lttng_kernel_abi_event_notifier *event_notifier); |
cfb1c9bc | 43 | |
90aa04a1 | 44 | int kernctl_counter_get_aggregate_value(int counter_fd, |
b8e2fb80 | 45 | struct lttng_kernel_abi_counter_aggregate *value); |
90aa04a1 | 46 | int kernctl_counter_clear(int counter_fd, |
b8e2fb80 | 47 | struct lttng_kernel_abi_counter_clear *clear); |
90aa04a1 | 48 | |
cfb1c9bc | 49 | /* Apply on event file descriptor. */ |
2b00d462 | 50 | int kernctl_filter(int fd, const struct lttng_bytecode *filter); |
b8e2fb80 | 51 | int kernctl_add_callsite(int fd, struct lttng_kernel_abi_event_callsite *callsite); |
bbd6675c | 52 | int kernctl_capture(int fd, const struct lttng_bytecode *capture); |
00a62084 | 53 | |
8d609afd | 54 | int kernctl_tracepoint_list(int fd); |
d02666a9 | 55 | int kernctl_syscall_list(int fd); |
b8e2fb80 FD |
56 | int kernctl_tracer_version(int fd, struct lttng_kernel_abi_tracer_version *v); |
57 | int kernctl_tracer_abi_version(int fd, struct lttng_kernel_abi_tracer_abi_version *v); | |
f3ed775e | 58 | int kernctl_wait_quiescent(int fd); |
16421f6e | 59 | |
46820c8b | 60 | /* |
cfb1c9bc JR |
61 | * kernctl_syscall_mask - Get syscall mask associated to a channel file |
62 | * descriptor. | |
46820c8b MD |
63 | * |
64 | * The parameter @syscall_mask should initially be either NULL or point | |
65 | * to memory allocated with malloc(3) or realloc(3). When the function | |
66 | * returns, it will point to a memory area of the size required for the | |
67 | * bitmask (using realloc(3) to resize the memory). | |
68 | * | |
69 | * It returns 0 if OK, -1 on error. In all cases (error and OK), | |
70 | * @syscall_mask should be freed by the caller with free(3). | |
71 | */ | |
72 | int kernctl_syscall_mask(int fd, char **syscall_mask, | |
73 | uint32_t *nr_bits); | |
74 | ||
cfb1c9bc | 75 | /* Process ID tracking can be applied to session file descriptor. */ |
ccf10263 MD |
76 | int kernctl_track_pid(int fd, int pid); |
77 | int kernctl_untrack_pid(int fd, int pid); | |
a5dfbb9d | 78 | int kernctl_list_tracker_pids(int fd); |
ccf10263 | 79 | |
159b042f JG |
80 | int kernctl_track_id(int fd, enum lttng_process_attr process_attr, int id); |
81 | int kernctl_untrack_id(int fd, enum lttng_process_attr process_attr, int id); | |
82 | int kernctl_list_tracker_ids(int fd, enum lttng_process_attr process_attr); | |
d01c0e56 | 83 | |
eded6438 | 84 | int kernctl_session_regenerate_metadata(int fd); |
c2561365 | 85 | int kernctl_session_regenerate_statedump(int fd); |
8ff4109e | 86 | int kernctl_session_set_name(int fd, const char *name); |
e04b2181 | 87 | int kernctl_session_set_creation_time(int fd, time_t time); |
93ec662e | 88 | |
964ccb60 MD |
89 | /* Buffer operations */ |
90 | ||
91 | /* For mmap mode, readable without "get" operation */ | |
92 | int kernctl_get_mmap_len(int fd, unsigned long *len); | |
93 | int kernctl_get_max_subbuf_size(int fd, unsigned long *len); | |
94 | ||
95 | /* | |
96 | * For mmap mode, operate on the current packet (between get/put or | |
97 | * get_next/put_next). | |
98 | */ | |
99 | int kernctl_get_mmap_read_offset(int fd, unsigned long *len); | |
100 | int kernctl_get_subbuf_size(int fd, unsigned long *len); | |
101 | int kernctl_get_padded_subbuf_size(int fd, unsigned long *len); | |
102 | ||
103 | int kernctl_get_next_subbuf(int fd); | |
104 | int kernctl_put_next_subbuf(int fd); | |
105 | ||
106 | /* snapshot */ | |
107 | int kernctl_snapshot(int fd); | |
b007ec59 | 108 | int kernctl_snapshot_sample_positions(int fd); |
964ccb60 MD |
109 | int kernctl_snapshot_get_consumed(int fd, unsigned long *pos); |
110 | int kernctl_snapshot_get_produced(int fd, unsigned long *pos); | |
111 | int kernctl_get_subbuf(int fd, unsigned long *pos); | |
112 | int kernctl_put_subbuf(int fd); | |
113 | ||
114 | int kernctl_buffer_flush(int fd); | |
f22dd891 | 115 | int kernctl_buffer_flush_empty(int fd); |
99930a9d | 116 | int kernctl_buffer_clear(int fd); |
93ec662e | 117 | int kernctl_get_metadata_version(int fd, uint64_t *version); |
8024cc8c | 118 | int kernctl_metadata_cache_dump(int fd); |
41dc93d9 | 119 | int kernctl_get_next_subbuf_metadata_check(int fd, bool *consistent); |
964ccb60 | 120 | |
309167d2 JD |
121 | /* index */ |
122 | int kernctl_get_timestamp_begin(int fd, uint64_t *timestamp_begin); | |
123 | int kernctl_get_timestamp_end(int fd, uint64_t *timestamp_end); | |
124 | int kernctl_get_events_discarded(int fd, uint64_t *events_discarded); | |
125 | int kernctl_get_content_size(int fd, uint64_t *content_size); | |
126 | int kernctl_get_packet_size(int fd, uint64_t *packet_size); | |
127 | int kernctl_get_stream_id(int fd, uint64_t *stream_id); | |
d3e2ba59 | 128 | int kernctl_get_current_timestamp(int fd, uint64_t *ts); |
fb83fe64 | 129 | int kernctl_get_sequence_number(int fd, uint64_t *seq); |
000fa86f | 130 | int kernctl_get_instance_id(int fd, uint64_t *seq); |
309167d2 | 131 | |
7966af57 SM |
132 | #ifdef __cplusplus |
133 | } | |
134 | #endif | |
135 | ||
3bd1e081 | 136 | #endif /* _LTTNG_KERNEL_CTL_H */ |