| 1 | /* |
| 2 | * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca> |
| 3 | * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0-only |
| 6 | * |
| 7 | */ |
| 8 | |
| 9 | #ifndef _LTTNG_USTCONSUMER_H |
| 10 | #define _LTTNG_USTCONSUMER_H |
| 11 | |
| 12 | #include <errno.h> |
| 13 | |
| 14 | #include <common/consumer/consumer.h> |
| 15 | #include <stdbool.h> |
| 16 | |
| 17 | #ifdef HAVE_LIBLTTNG_UST_CTL |
| 18 | |
| 19 | int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream); |
| 20 | int lttng_ustconsumer_sample_snapshot_positions( |
| 21 | struct lttng_consumer_stream *stream); |
| 22 | |
| 23 | int lttng_ustconsumer_get_produced_snapshot( |
| 24 | struct lttng_consumer_stream *stream, unsigned long *pos); |
| 25 | int lttng_ustconsumer_get_consumed_snapshot( |
| 26 | struct lttng_consumer_stream *stream, unsigned long *pos); |
| 27 | |
| 28 | int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx, |
| 29 | int sock, struct pollfd *consumer_sockpoll); |
| 30 | |
| 31 | extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan); |
| 32 | extern void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan); |
| 33 | extern void lttng_ustconsumer_free_channel(struct lttng_consumer_channel *chan); |
| 34 | extern int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream); |
| 35 | extern void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream); |
| 36 | |
| 37 | int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream, |
| 38 | struct lttng_consumer_local_data *ctx); |
| 39 | int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream); |
| 40 | |
| 41 | void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream); |
| 42 | |
| 43 | int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream, |
| 44 | unsigned long *off); |
| 45 | void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream *stream); |
| 46 | void lttng_ustctl_flush_buffer(struct lttng_consumer_stream *stream, |
| 47 | int producer_active); |
| 48 | int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream *stream, |
| 49 | uint64_t *stream_id); |
| 50 | int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream); |
| 51 | void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht); |
| 52 | void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata); |
| 53 | void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream); |
| 54 | int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset, |
| 55 | uint64_t len, uint64_t version, |
| 56 | struct lttng_consumer_channel *channel, int timer, int wait); |
| 57 | int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx, |
| 58 | struct lttng_consumer_channel *channel, int timer, int wait); |
| 59 | int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data *ctx, |
| 60 | struct lttng_consumer_stream *metadata); |
| 61 | void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream, |
| 62 | int producer); |
| 63 | void lttng_ustconsumer_clear_buffer(struct lttng_consumer_stream *stream); |
| 64 | int lttng_ustconsumer_get_current_timestamp( |
| 65 | struct lttng_consumer_stream *stream, uint64_t *ts); |
| 66 | int lttng_ustconsumer_get_sequence_number( |
| 67 | struct lttng_consumer_stream *stream, uint64_t *seq); |
| 68 | |
| 69 | #else /* HAVE_LIBLTTNG_UST_CTL */ |
| 70 | |
| 71 | static inline |
| 72 | ssize_t lttng_ustconsumer_on_read_subbuffer_mmap( |
| 73 | struct lttng_consumer_local_data *ctx, |
| 74 | struct lttng_consumer_stream *stream, unsigned long len, |
| 75 | unsigned long padding) |
| 76 | { |
| 77 | return -ENOSYS; |
| 78 | } |
| 79 | |
| 80 | static inline |
| 81 | ssize_t lttng_ustconsumer_on_read_subbuffer_splice( |
| 82 | struct lttng_consumer_local_data *ctx, |
| 83 | struct lttng_consumer_stream *uststream, unsigned long len, |
| 84 | unsigned long padding) |
| 85 | { |
| 86 | return -ENOSYS; |
| 87 | } |
| 88 | |
| 89 | static inline |
| 90 | int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream) |
| 91 | { |
| 92 | return -ENOSYS; |
| 93 | } |
| 94 | |
| 95 | static inline |
| 96 | int lttng_ustconsumer_sample_snapshot_positions( |
| 97 | struct lttng_consumer_stream *stream) |
| 98 | { |
| 99 | return -ENOSYS; |
| 100 | } |
| 101 | |
| 102 | static inline |
| 103 | int lttng_ustconsumer_get_produced_snapshot( |
| 104 | struct lttng_consumer_stream *stream, unsigned long *pos) |
| 105 | { |
| 106 | return -ENOSYS; |
| 107 | } |
| 108 | |
| 109 | static inline |
| 110 | int lttng_ustconsumer_get_consumed_snapshot( |
| 111 | struct lttng_consumer_stream *stream, unsigned long *pos) |
| 112 | { |
| 113 | return -ENOSYS; |
| 114 | } |
| 115 | |
| 116 | static inline |
| 117 | int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx, |
| 118 | int sock, struct pollfd *consumer_sockpoll) |
| 119 | { |
| 120 | return -ENOSYS; |
| 121 | } |
| 122 | |
| 123 | static inline |
| 124 | int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan) |
| 125 | { |
| 126 | return -ENOSYS; |
| 127 | } |
| 128 | |
| 129 | static inline |
| 130 | void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan) |
| 131 | { |
| 132 | } |
| 133 | |
| 134 | static inline |
| 135 | void lttng_ustconsumer_free_channel(struct lttng_consumer_channel *chan) |
| 136 | { |
| 137 | } |
| 138 | |
| 139 | static inline |
| 140 | int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream) |
| 141 | { |
| 142 | return -ENOSYS; |
| 143 | } |
| 144 | |
| 145 | static inline |
| 146 | void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream) |
| 147 | { |
| 148 | } |
| 149 | |
| 150 | static inline |
| 151 | int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream, |
| 152 | struct lttng_consumer_local_data *ctx) |
| 153 | { |
| 154 | return -ENOSYS; |
| 155 | } |
| 156 | |
| 157 | static inline |
| 158 | int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream) |
| 159 | { |
| 160 | return -ENOSYS; |
| 161 | } |
| 162 | |
| 163 | static inline |
| 164 | void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream) |
| 165 | { |
| 166 | } |
| 167 | |
| 168 | static inline |
| 169 | int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream, |
| 170 | unsigned long *off) |
| 171 | { |
| 172 | return -ENOSYS; |
| 173 | } |
| 174 | static inline |
| 175 | int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream) |
| 176 | { |
| 177 | return -ENOSYS; |
| 178 | } |
| 179 | static inline |
| 180 | void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream *stream) |
| 181 | { |
| 182 | return NULL; |
| 183 | } |
| 184 | static inline |
| 185 | void lttng_ustctl_flush_buffer(struct lttng_consumer_stream *stream, |
| 186 | int producer_active) |
| 187 | { |
| 188 | } |
| 189 | static inline |
| 190 | void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht) |
| 191 | { |
| 192 | } |
| 193 | static inline |
| 194 | void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata) |
| 195 | { |
| 196 | } |
| 197 | static inline |
| 198 | void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream) |
| 199 | { |
| 200 | } |
| 201 | static inline |
| 202 | int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset, |
| 203 | uint64_t len, uint64_t version, |
| 204 | struct lttng_consumer_channel *channel, int timer) |
| 205 | { |
| 206 | return -ENOSYS; |
| 207 | } |
| 208 | static inline |
| 209 | int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx, |
| 210 | struct lttng_consumer_channel *channel, int timer, int wait) |
| 211 | { |
| 212 | return -ENOSYS; |
| 213 | } |
| 214 | static inline |
| 215 | int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data *ctx, |
| 216 | struct lttng_consumer_stream *metadata) |
| 217 | { |
| 218 | return -ENOSYS; |
| 219 | } |
| 220 | static inline |
| 221 | void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream, |
| 222 | int producer) |
| 223 | { |
| 224 | } |
| 225 | static inline |
| 226 | void lttng_ustconsumer_clear_buffer(struct lttng_consumer_stream *stream) |
| 227 | { |
| 228 | } |
| 229 | static inline |
| 230 | int lttng_ustconsumer_get_current_timestamp( |
| 231 | struct lttng_consumer_stream *stream, uint64_t *ts) |
| 232 | { |
| 233 | return -ENOSYS; |
| 234 | } |
| 235 | static inline |
| 236 | int lttng_ustconsumer_get_sequence_number( |
| 237 | struct lttng_consumer_stream *stream, uint64_t *seq) |
| 238 | { |
| 239 | return -ENOSYS; |
| 240 | } |
| 241 | static inline |
| 242 | int lttng_ustconsumer_get_stream_id(struct lttng_consumer_stream *stream, |
| 243 | uint64_t *stream_id) |
| 244 | { |
| 245 | return -ENOSYS; |
| 246 | } |
| 247 | #endif /* HAVE_LIBLTTNG_UST_CTL */ |
| 248 | |
| 249 | #endif /* _LTTNG_USTCONSUMER_H */ |