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