| 1 | /* |
| 2 | * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca> |
| 3 | * Copyright (C) 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 4 | * |
| 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. |
| 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 | * |
| 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. |
| 17 | */ |
| 18 | |
| 19 | #ifndef _LTTNG_USTCONSUMER_H |
| 20 | #define _LTTNG_USTCONSUMER_H |
| 21 | |
| 22 | #include <config.h> |
| 23 | #include <errno.h> |
| 24 | |
| 25 | #include <common/consumer.h> |
| 26 | |
| 27 | #ifdef HAVE_LIBLTTNG_UST_CTL |
| 28 | |
| 29 | int lttng_ustconsumer_take_snapshot(struct lttng_consumer_stream *stream); |
| 30 | |
| 31 | int lttng_ustconsumer_get_produced_snapshot( |
| 32 | struct lttng_consumer_stream *stream, unsigned long *pos); |
| 33 | int lttng_ustconsumer_get_consumed_snapshot( |
| 34 | struct lttng_consumer_stream *stream, unsigned long *pos); |
| 35 | |
| 36 | int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx, |
| 37 | int sock, struct pollfd *consumer_sockpoll); |
| 38 | |
| 39 | extern int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan); |
| 40 | extern void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan); |
| 41 | extern int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream); |
| 42 | extern void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream); |
| 43 | |
| 44 | int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream, |
| 45 | struct lttng_consumer_local_data *ctx); |
| 46 | int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream); |
| 47 | |
| 48 | void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream); |
| 49 | |
| 50 | int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream, |
| 51 | unsigned long *off); |
| 52 | void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream *stream); |
| 53 | int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream); |
| 54 | void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht); |
| 55 | void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata); |
| 56 | void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream); |
| 57 | int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset, |
| 58 | uint64_t len, struct lttng_consumer_channel *channel, |
| 59 | int timer, int wait); |
| 60 | int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx, |
| 61 | struct lttng_consumer_channel *channel, int timer, int wait); |
| 62 | int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data *ctx, |
| 63 | struct lttng_consumer_stream *metadata); |
| 64 | void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream, |
| 65 | int producer); |
| 66 | int lttng_ustconsumer_get_current_timestamp( |
| 67 | struct lttng_consumer_stream *stream, uint64_t *ts); |
| 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_get_produced_snapshot( |
| 97 | struct lttng_consumer_stream *stream, unsigned long *pos) |
| 98 | { |
| 99 | return -ENOSYS; |
| 100 | } |
| 101 | |
| 102 | static inline |
| 103 | int lttng_ustconsumer_recv_cmd(struct lttng_consumer_local_data *ctx, |
| 104 | int sock, struct pollfd *consumer_sockpoll) |
| 105 | { |
| 106 | return -ENOSYS; |
| 107 | } |
| 108 | |
| 109 | static inline |
| 110 | int lttng_ustconsumer_allocate_channel(struct lttng_consumer_channel *chan) |
| 111 | { |
| 112 | return -ENOSYS; |
| 113 | } |
| 114 | |
| 115 | static inline |
| 116 | void lttng_ustconsumer_del_channel(struct lttng_consumer_channel *chan) |
| 117 | { |
| 118 | } |
| 119 | |
| 120 | static inline |
| 121 | int lttng_ustconsumer_add_stream(struct lttng_consumer_stream *stream) |
| 122 | { |
| 123 | return -ENOSYS; |
| 124 | } |
| 125 | |
| 126 | static inline |
| 127 | void lttng_ustconsumer_del_stream(struct lttng_consumer_stream *stream) |
| 128 | { |
| 129 | } |
| 130 | |
| 131 | static inline |
| 132 | int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream, |
| 133 | struct lttng_consumer_local_data *ctx) |
| 134 | { |
| 135 | return -ENOSYS; |
| 136 | } |
| 137 | |
| 138 | static inline |
| 139 | int lttng_ustconsumer_on_recv_stream(struct lttng_consumer_stream *stream) |
| 140 | { |
| 141 | return -ENOSYS; |
| 142 | } |
| 143 | |
| 144 | static inline |
| 145 | void lttng_ustconsumer_on_stream_hangup(struct lttng_consumer_stream *stream) |
| 146 | { |
| 147 | } |
| 148 | |
| 149 | static inline |
| 150 | int lttng_ustctl_get_mmap_read_offset(struct lttng_consumer_stream *stream, |
| 151 | unsigned long *off) |
| 152 | { |
| 153 | return -ENOSYS; |
| 154 | } |
| 155 | static inline |
| 156 | int lttng_ustconsumer_data_pending(struct lttng_consumer_stream *stream) |
| 157 | { |
| 158 | return -ENOSYS; |
| 159 | } |
| 160 | static inline |
| 161 | void *lttng_ustctl_get_mmap_base(struct lttng_consumer_stream *stream) |
| 162 | { |
| 163 | return NULL; |
| 164 | } |
| 165 | static inline |
| 166 | void lttng_ustconsumer_close_all_metadata(struct lttng_ht *ht) |
| 167 | { |
| 168 | } |
| 169 | static inline |
| 170 | void lttng_ustconsumer_close_metadata(struct lttng_consumer_channel *metadata) |
| 171 | { |
| 172 | } |
| 173 | static inline |
| 174 | void lttng_ustconsumer_close_stream_wakeup(struct lttng_consumer_stream *stream) |
| 175 | { |
| 176 | } |
| 177 | static inline |
| 178 | int lttng_ustconsumer_recv_metadata(int sock, uint64_t key, uint64_t offset, |
| 179 | uint64_t len, struct lttng_consumer_channel *channel, |
| 180 | int timer) |
| 181 | { |
| 182 | return -ENOSYS; |
| 183 | } |
| 184 | static inline |
| 185 | int lttng_ustconsumer_request_metadata(struct lttng_consumer_local_data *ctx, |
| 186 | struct lttng_consumer_channel *channel, int timer, int wait) |
| 187 | { |
| 188 | return -ENOSYS; |
| 189 | } |
| 190 | static inline |
| 191 | int lttng_ustconsumer_sync_metadata(struct lttng_consumer_local_data *ctx, |
| 192 | struct lttng_consumer_stream *metadata) |
| 193 | { |
| 194 | return -ENOSYS; |
| 195 | } |
| 196 | static inline |
| 197 | void lttng_ustconsumer_flush_buffer(struct lttng_consumer_stream *stream, |
| 198 | int producer) |
| 199 | { |
| 200 | } |
| 201 | static inline |
| 202 | int lttng_ustconsumer_get_current_timestamp( |
| 203 | struct lttng_consumer_stream *stream, uint64_t *ts) |
| 204 | { |
| 205 | return -ENOSYS; |
| 206 | } |
| 207 | #endif /* HAVE_LIBLTTNG_UST_CTL */ |
| 208 | |
| 209 | #endif /* _LTTNG_USTCONSUMER_H */ |