library/elliptics.h

   1 /*
   2  * 2008+ Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
   3  * All rights reserved.
   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 as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #ifndef __DNET_ELLIPTICS_H
  17 #define __DNET_ELLIPTICS_H
  18
  19 #include <sys/time.h>
  20 #include <sys/socket.h>
  21 #include <sys/epoll.h>
  22
  23 #include <errno.h>
  24 #include <netdb.h>
  25 #include <string.h>
  26 #include <pthread.h>
  27 #include <time.h>
  28
  29 #include <netinet/in.h>
  30 #include <arpa/inet.h>
  31
  32 #include <eblob/blob.h>
  33
  34 #ifndef HAVE_UCHAR
  35 typedef unsigned char u_char;
  36 typedef unsigned short u_short;
  37 #endif
  38
  39 #include "list.h"
  40
  41 #undef offsetof
  42 #include "rbtree.h"
  43
  44 #include "atomic.h"
  45 #include "lock.h"
  46
  47 #include "elliptics/packet.h"
  48 #include "elliptics/interface.h"
  49
  50 #ifdef __cplusplus
  51 extern "C" {
  52 #endif
  53
  54 #ifndef __unused
  55 #define __unused        __attribute__ ((unused))
  56 #endif
  57
  58 struct dnet_node;
  59 struct dnet_group;
  60 struct dnet_net_state;
  61
  62 #define dnet_log(n, level, format, a...) do { if (n->log && (n->log->log_level >= level)) dnet_log_raw(n, level, format, ##a); } while (0)
  63 #define dnet_log_err(n, f, a...) dnet_log(n, DNET_LOG_ERROR, f ": %s [%d].\n", ##a, strerror(errno), errno)
  64
  65 struct dnet_io_req {
  66         struct list_head        req_entry;
  67
  68         struct dnet_net_state   *st;
  69
  70         void                    *header;
  71         size_t                  hsize;
  72
  73         void                    *data;
  74         size_t                  dsize;
  75
  76         int                     close_on_exit;
  77         int                     fd;
  78         off_t                   local_offset;
  79         size_t                  fsize;
  80 };
  81
  82 /*
  83  * Currently executed network state machine:
  84  * receives and sends command and data.
  85  */
  86
  87 /* Reading a command */
  88 #define DNET_IO_CMD             (1<<0)
  89
  90 /* Attached data should be discarded */
  91 #define DNET_IO_DROP            (1<<1)
  92
  93 #define DNET_STATE_MAX_WEIGHT           (1024 * 10)
  94
  95 struct dnet_net_state
  96 {
  97         struct list_head        state_entry;
  98         struct list_head        storage_state_entry;
  99
 100         struct dnet_node        *n;
 101
 102         atomic_t                refcnt;
 103         int                     read_s, write_s;
 104
 105         int                     need_exit;
 106
 107         int                     stall;
 108
 109         int                     __join_state;
 110
 111         struct dnet_addr        addr;
 112
 113         int                     (* process)(struct dnet_net_state *st, struct epoll_event *ev);
 114
 115         struct dnet_cmd         rcv_cmd;
 116         uint64_t                rcv_offset;
 117         uint64_t                rcv_end;
 118         unsigned int            rcv_flags;
 119         void                    *rcv_data;
 120
 121         int                     epoll_fd;
 122         size_t                  send_offset;
 123         pthread_mutex_t         send_lock;
 124         struct list_head        send_list;
 125
 126         pthread_mutex_t         trans_lock;
 127         struct rb_root          trans_root;
 128         struct list_head        trans_list;
 129
 130
 131         int                     la;
 132         unsigned long long      free;
 133         float                   weight;
 134         long                    median_read_time;
 135
 136         struct dnet_idc         *idc;
 137
 138         struct dnet_stat_count  stat[__DNET_CMD_MAX];
 139 };
 140
 141 struct dnet_idc;
 142 struct dnet_state_id {
 143         struct dnet_raw_id      raw;
 144         struct dnet_idc         *idc;
 145 };
 146
 147 struct dnet_idc {
 148         struct dnet_net_state   *st;
 149         struct dnet_group       *group;
 150         int                     id_num;
 151         struct dnet_state_id    ids[];
 152 };
 153
 154 int dnet_idc_create(struct dnet_net_state *st, int group_id, struct dnet_raw_id *ids, int id_num);
 155 void dnet_idc_destroy_nolock(struct dnet_net_state *st);
 156
 157 struct dnet_net_state *dnet_state_create(struct dnet_node *n,
 158                 int group_id, struct dnet_raw_id *ids, int id_num,
 159                 struct dnet_addr *addr, int s, int *errp, int join,
 160                 int (* process)(struct dnet_net_state *st, struct epoll_event *ev));
 161
 162 void dnet_state_reset(struct dnet_net_state *st);
 163 void dnet_state_remove_nolock(struct dnet_net_state *st);
 164
 165 struct dnet_net_state *dnet_state_search_by_addr(struct dnet_node *n, struct dnet_addr *addr);
 166 struct dnet_net_state *dnet_state_get_first(struct dnet_node *n, struct dnet_id *id);
 167 struct dnet_net_state *dnet_state_search_nolock(struct dnet_node *n, struct dnet_id *id);
 168 struct dnet_net_state *dnet_node_state(struct dnet_node *n);
 169
 170 void dnet_node_cleanup_common_resources(struct dnet_node *n);
 171
 172 int dnet_search_range(struct dnet_node *n, struct dnet_id *id,
 173                 struct dnet_raw_id *start, struct dnet_raw_id *next);
 174
 175 int dnet_recv_route_list(struct dnet_net_state *st);
 176
 177 void dnet_state_destroy(struct dnet_net_state *st);
 178
 179 void dnet_schedule_command(struct dnet_net_state *st);
 180
 181 int dnet_schedule_send(struct dnet_net_state *st);
 182 int dnet_schedule_recv(struct dnet_net_state *st);
 183
 184 void dnet_unschedule_send(struct dnet_net_state *st);
 185 void dnet_unschedule_recv(struct dnet_net_state *st);
 186
 187 int dnet_setup_control_nolock(struct dnet_net_state *st);
 188
 189 int dnet_add_reconnect_state(struct dnet_node *n, struct dnet_addr *addr, unsigned int join_state);
 190
 191 static inline struct dnet_net_state *dnet_state_get(struct dnet_net_state *st)
 192 {
 193         atomic_inc(&st->refcnt);
 194         return st;
 195 }
 196 static inline void dnet_state_put(struct dnet_net_state *st)
 197 {
 198         /*
 199          * State can be NULL here when we just want to kick IO thread.
 200          */
 201         if (st && atomic_dec_and_test(&st->refcnt))
 202                 dnet_state_destroy(st);
 203 }
 204
 205 struct dnet_wait
 206 {
 207         pthread_cond_t          wait;
 208         pthread_mutex_t         wait_lock;
 209         int                     cond;
 210         int                     status;
 211
 212         void                    *ret;
 213         int                     size;
 214
 215         atomic_t                refcnt;
 216 };
 217
 218 #define dnet_wait_event(w, condition, wts)                                              \
 219 ({                                                                                      \
 220         int __err = 0;                                                                  \
 221         struct timespec __ts;                                                           \
 222         struct timeval __tv;                                                            \
 223         gettimeofday(&__tv, NULL);                                                      \
 224         __ts.tv_nsec = __tv.tv_usec * 1000 + (wts)->tv_nsec;                            \
 225         __ts.tv_sec = __tv.tv_sec + (wts)->tv_sec;                                              \
 226         pthread_mutex_lock(&(w)->wait_lock);                                            \
 227         while (!(condition) && !__err)                                                  \
 228                 __err = pthread_cond_timedwait(&(w)->wait, &(w)->wait_lock, &__ts);             \
 229         pthread_mutex_unlock(&(w)->wait_lock);                                          \
 230         -__err;                                                                         \
 231 })
 232
 233 #define dnet_wakeup(w, task)                                                            \
 234 ({                                                                                      \
 235         pthread_mutex_lock(&(w)->wait_lock);                                            \
 236         task;                                                                           \
 237         pthread_cond_broadcast(&(w)->wait);                                             \
 238         pthread_mutex_unlock(&(w)->wait_lock);                                          \
 239 })
 240
 241 struct dnet_wait *dnet_wait_alloc(int cond);
 242 void dnet_wait_destroy(struct dnet_wait *w);
 243
 244 static inline struct dnet_wait *dnet_wait_get(struct dnet_wait *w)
 245 {
 246         atomic_inc(&w->refcnt);
 247         return w;
 248 }
 249
 250 static inline void dnet_wait_put(struct dnet_wait *w)
 251 {
 252         if (atomic_dec_and_test(&w->refcnt))
 253                 dnet_wait_destroy(w);
 254 }
 255
 256 struct dnet_notify_bucket
 257 {
 258         struct list_head                notify_list;
 259         pthread_rwlock_t                notify_lock;
 260 };
 261
 262 int dnet_update_notify(struct dnet_net_state *st, struct dnet_cmd *cmd, void *data);
 263
 264 int dnet_notify_add(struct dnet_net_state *st, struct dnet_cmd *cmd);
 265 int dnet_notify_remove(struct dnet_net_state *st, struct dnet_cmd *cmd);
 266
 267 int dnet_notify_init(struct dnet_node *n);
 268 void dnet_notify_exit(struct dnet_node *n);
 269
 270 struct dnet_group
 271 {
 272         struct list_head        group_entry;
 273
 274         unsigned int            group_id;
 275
 276         struct list_head        state_list;
 277
 278         atomic_t                refcnt;
 279
 280         int                     id_num;
 281         struct dnet_state_id    *ids;
 282 };
 283
 284 static inline struct dnet_group *dnet_group_get(struct dnet_group *g)
 285 {
 286         atomic_inc(&g->refcnt);
 287         return g;
 288 }
 289
 290 void dnet_group_destroy(struct dnet_group *g);
 291 static inline void dnet_group_put(struct dnet_group *g)
 292 {
 293         if (g && atomic_dec_and_test(&g->refcnt))
 294                 dnet_group_destroy(g);
 295 }
 296
 297 struct dnet_transform
 298 {
 299         void                    *priv;
 300
 301         int                     (* transform)(void *priv, const void *src, uint64_t size,
 302                                         void *dst, unsigned int *dsize, unsigned int flags);
 303 };
 304
 305 int dnet_crypto_init(struct dnet_node *n, void *ns, int nsize);
 306 void dnet_crypto_cleanup(struct dnet_node *n);
 307
 308 struct dnet_net_io {
 309         int                     epoll_fd;
 310         pthread_t               tid;
 311         struct dnet_node        *n;
 312 };
 313
 314 enum dnet_work_io_mode {
 315         DNET_WORK_IO_MODE_BLOCKING = 0,
 316         DNET_WORK_IO_MODE_NONBLOCKING,
 317         DNET_WORK_IO_MODE_EXEC_BLOCKING,
 318 };
 319
 320 struct dnet_work_pool;
 321 struct dnet_work_io {
 322         struct list_head        wio_entry;
 323         int                     thread_index;
 324         pthread_t               tid;
 325         struct dnet_work_pool   *pool;
 326 };
 327
 328 struct dnet_work_pool {
 329         struct dnet_node        *n;
 330         int                     mode;
 331         int                     num;
 332         atomic_t                avail;
 333         struct list_head        list;
 334         pthread_mutex_t         lock;
 335         pthread_cond_t          wait;
 336         struct list_head        wio_list;
 337 };
 338
 339 struct dnet_io {
 340         int                     need_exit;
 341
 342         int                     net_thread_num, net_thread_pos;
 343         struct dnet_net_io      *net;
 344
 345         struct dnet_work_pool   *recv_pool;
 346         struct dnet_work_pool   *recv_pool_nb;
 347 };
 348
 349 int dnet_state_accept_process(struct dnet_net_state *st, struct epoll_event *ev);
 350 int dnet_state_net_process(struct dnet_net_state *st, struct epoll_event *ev);
 351 int dnet_io_init(struct dnet_node *n, struct dnet_config *cfg);
 352 void dnet_io_exit(struct dnet_node *n);
 353
 354 void dnet_io_req_free(struct dnet_io_req *r);
 355
 356 struct dnet_locks {
 357         int                     num;
 358         pthread_mutex_t         lock[0];
 359 };
 360
 361 void dnet_locks_destroy(struct dnet_node *n);
 362 int dnet_locks_init(struct dnet_node *n, int num);
 363 void dnet_oplock(struct dnet_node *n, struct dnet_id *key);
 364 void dnet_opunlock(struct dnet_node *n, struct dnet_id *key);
 365 int dnet_optrylock(struct dnet_node *n, struct dnet_id *key);
 366
 367 struct dnet_node
 368 {
 369         struct list_head        check_entry;
 370
 371         struct dnet_transform   transform;
 372
 373         int                     need_exit;
 374
 375         int                     autodiscovery_socket;
 376         struct dnet_addr        autodiscovery_addr;
 377
 378         struct dnet_id          id;
 379
 380         int                     flags;
 381         int                     ro;
 382
 383         pthread_attr_t          attr;
 384
 385         struct dnet_addr        addr;
 386         int                     sock_type, proto, family;
 387
 388         pthread_mutex_t         state_lock;
 389         struct list_head        group_list;
 390
 391         /* hosts client states, i.e. those who didn't join network */
 392         struct list_head        empty_state_list;
 393
 394         /* hosts all states added to given node */
 395         struct list_head        storage_state_list;
 396
 397         atomic_t                trans;
 398
 399         struct dnet_net_state   *st;
 400
 401         int                     error;
 402
 403         struct dnet_log         *log;
 404
 405         struct dnet_wait        *wait;
 406         struct timespec         wait_ts;
 407
 408         struct dnet_io          *io;
 409
 410         int                     check_in_progress;
 411         long                    check_timeout;
 412         pthread_t               check_tid;
 413         long                    stall_count;
 414
 415         pthread_t               monitor_tid;
 416         int                     monitor_fd;
 417
 418         char                    *temp_meta_env;
 419
 420         struct dnet_backend_callbacks   *cb;
 421
 422         unsigned int            notify_hash_size;
 423         struct dnet_notify_bucket       *notify_hash;
 424
 425         pthread_mutex_t         reconnect_lock;
 426         struct list_head        reconnect_list;
 427
 428         struct dnet_lock        counters_lock;
 429         struct dnet_stat_count  counters[__DNET_CNTR_MAX];
 430
 431         int                     bg_ionice_class;
 432         int                     bg_ionice_prio;
 433         int                     removal_delay;
 434
 435         char                    cookie[DNET_AUTH_COOKIE_SIZE];
 436
 437         void                    *srw;
 438
 439         int                     server_prio;
 440         int                     client_prio;
 441
 442         struct dnet_locks       *locks;
 443
 444         size_t                  cache_size;
 445         void                    *cache;
 446 };
 447
 448
 449 struct dnet_session {
 450         struct dnet_node *node;
 451         int group_num;
 452         int *groups;
 453 };
 454
 455 static inline int dnet_counter_init(struct dnet_node *n)
 456 {
 457         memset(&n->counters, 0, __DNET_CNTR_MAX * sizeof(struct dnet_stat_count));
 458         return dnet_lock_init(&n->counters_lock);
 459 }
 460
 461 static inline void dnet_counter_destroy(struct dnet_node *n)
 462 {
 463         return dnet_lock_destroy(&n->counters_lock);
 464 }
 465
 466 static inline void dnet_counter_inc(struct dnet_node *n, int counter, int err)
 467 {
 468         if (counter >= __DNET_CNTR_MAX)
 469                 counter = DNET_CNTR_UNKNOWN;
 470
 471         dnet_lock_lock(&n->counters_lock);
 472         if (!err)
 473                 n->counters[counter].count++;
 474         else
 475                 n->counters[counter].err++;
 476         dnet_lock_unlock(&n->counters_lock);
 477
 478         dnet_log(n, DNET_LOG_DEBUG, "Incrementing counter: %d, err: %d, value is: %llu %llu.\n",
 479                                 counter, err,
 480                                 (unsigned long long)n->counters[counter].count,
 481                                 (unsigned long long)n->counters[counter].err);
 482 }
 483
 484 static inline void dnet_counter_set(struct dnet_node *n, int counter, int err, int64_t val)
 485 {
 486         if (counter >= __DNET_CNTR_MAX)
 487                 counter = DNET_CNTR_UNKNOWN;
 488
 489         dnet_lock_lock(&n->counters_lock);
 490         if (!err)
 491                 n->counters[counter].count = val;
 492         else
 493                 n->counters[counter].err = val;
 494         dnet_lock_unlock(&n->counters_lock);
 495 }
 496
 497 static inline char *dnet_dump_node(struct dnet_node *n)
 498 {
 499         static char buf[128];
 500
 501         return dnet_server_convert_dnet_addr_raw(&n->addr, buf, sizeof(buf));
 502 }
 503
 504 struct dnet_trans;
 505 int __attribute__((weak)) dnet_process_cmd_raw(struct dnet_net_state *st, struct dnet_cmd *cmd, void *data);
 506 int dnet_process_recv(struct dnet_net_state *st, struct dnet_io_req *r);
 507
 508 int dnet_recv(struct dnet_net_state *st, void *data, unsigned int size);
 509 int dnet_sendfile(struct dnet_net_state *st, int fd, uint64_t *offset, uint64_t size);
 510
 511 int dnet_send_request(struct dnet_net_state *st, struct dnet_io_req *r);
 512
 513 struct dnet_config;
 514 int dnet_socket_create(struct dnet_node *n, struct dnet_config *cfg, struct dnet_addr *addr, int listening);
 515 int dnet_socket_create_addr(struct dnet_node *n, int sock_type, int proto, int family,
 516                 struct sockaddr *sa, unsigned int salen, int listening);
 517
 518 void dnet_set_sockopt(int s);
 519 void dnet_sock_close(int s);
 520
 521 enum dnet_join_state {
 522         DNET_JOIN = 1,                  /* Node joined the network */
 523         DNET_WANT_RECONNECT,            /* State must be reconnected, when remote peer failed */
 524 };
 525
 526 int __attribute__((weak)) dnet_state_join_nolock(struct dnet_net_state *st);
 527
 528 struct dnet_trans
 529 {
 530         struct rb_node                  trans_entry;
 531         struct list_head                trans_list_entry;
 532
 533         struct timeval                  time, start;
 534
 535         struct dnet_net_state           *orig; /* only for forward */
 536
 537         struct dnet_net_state           *st;
 538         uint64_t                        trans, rcv_trans;
 539         struct dnet_cmd                 cmd;
 540
 541         atomic_t                        refcnt;
 542
 543         int                             command; /* main command this transaction carries */
 544
 545         void                            *priv;
 546         int                             (* complete)(struct dnet_net_state *st,
 547                                                      struct dnet_cmd *cmd,
 548                                                      void *priv);
 549 };
 550
 551 void dnet_trans_destroy(struct dnet_trans *t);
 552 struct dnet_trans *dnet_trans_alloc(struct dnet_node *n, uint64_t size);
 553 int dnet_trans_alloc_send_state(struct dnet_net_state *st, struct dnet_trans_control *ctl);
 554 int dnet_trans_timer_setup(struct dnet_trans *t);
 555
 556 static inline struct dnet_trans *dnet_trans_get(struct dnet_trans *t)
 557 {
 558         atomic_inc(&t->refcnt);
 559         return t;
 560 }
 561
 562 static inline void dnet_trans_put(struct dnet_trans *t)
 563 {
 564         if (t && atomic_dec_and_test(&t->refcnt))
 565                 dnet_trans_destroy(t);
 566 }
 567
 568 int dnet_trans_insert_nolock(struct rb_root *root, struct dnet_trans *a);
 569 void dnet_trans_remove(struct dnet_trans *t);
 570 void dnet_trans_remove_nolock(struct rb_root *root, struct dnet_trans *t);
 571 struct dnet_trans *dnet_trans_search(struct rb_root *root, uint64_t trans);
 572
 573 int dnet_trans_send(struct dnet_trans *t, struct dnet_io_req *req);
 574
 575 int dnet_recv_list(struct dnet_node *n, struct dnet_net_state *st);
 576
 577 ssize_t dnet_send_fd(struct dnet_net_state *st, void *header, uint64_t hsize,
 578                 int fd, uint64_t offset, uint64_t dsize, int close_on_exit);
 579 ssize_t dnet_send_data(struct dnet_net_state *st, void *header, uint64_t hsize, void *data, uint64_t dsize);
 580 ssize_t dnet_send(struct dnet_net_state *st, void *data, uint64_t size);
 581 ssize_t dnet_send_nolock(struct dnet_net_state *st, void *data, uint64_t size);
 582
 583 struct dnet_io_completion
 584 {
 585         struct dnet_wait        *wait;
 586         char                    *file;
 587         uint64_t                offset;
 588 };
 589
 590 struct dnet_addr_storage
 591 {
 592         int                             reconnect_time, reconnect_time_max;
 593         struct list_head                reconnect_entry;
 594         struct dnet_addr                addr;
 595         unsigned int                    __join_state;
 596 };
 597
 598 /*
 599  * Returns true if t1 is before than t2.
 600  */
 601 static inline int dnet_time_before(struct timespec *t1, struct timespec *t2)
 602 {
 603         if ((long)(t1->tv_sec - t2->tv_sec) < 0)
 604                 return 1;
 605
 606         if ((long)(t2->tv_sec - t1->tv_sec) < 0)
 607                 return 0;
 608
 609         return ((long)(t1->tv_nsec - t2->tv_nsec) < 0);
 610 }
 611 #define dnet_time_after(t2, t1)         dnet_time_before(t1, t2)
 612
 613 int dnet_check_thread_start(struct dnet_node *n);
 614 void dnet_check_thread_stop(struct dnet_node *n);
 615 int dnet_try_reconnect(struct dnet_node *n);
 616
 617 #define DNET_CHECK_TYPE_COPIES_HISTORY          1
 618 #define DNET_CHECK_TYPE_COPIES_FULL             2
 619 #define DNET_CHECK_TYPE_MERGE                   3
 620 #define DNET_CHECK_TYPE_DELETE                  4
 621
 622 #define DNET_BULK_IDS_SIZE                      1000
 623 #define DNET_BULK_CHECK_PING                    100
 624 #define DNET_BULK_STATES_ALLOC_STEP             10
 625 #define DNET_BULK_META_UPD_SIZE                 1000
 626
 627 struct dnet_bulk_id
 628 {
 629         struct dnet_raw_id id;
 630         struct dnet_meta_update last_update;
 631 } __attribute__ ((packed));
 632
 633 struct dnet_bulk_state
 634 {
 635         struct dnet_addr addr;
 636         pthread_mutex_t state_lock;
 637         int num;
 638         struct dnet_bulk_id *ids;
 639 };
 640
 641 struct dnet_bulk_array
 642 {
 643         int num;
 644         struct dnet_bulk_state *states;
 645         atomic_t refcnt;
 646 };
 647
 648 static inline int dnet_compare_bulk_state(const void *k1, const void *k2)
 649 {
 650         const struct dnet_bulk_state *st1 = (const struct dnet_bulk_state *)k1;
 651         const struct dnet_bulk_state *st2 = (const struct dnet_bulk_state *)k2;
 652
 653         if (st1->addr.addr_len > st2->addr.addr_len)
 654                 return 1;
 655         if (st1->addr.addr_len < st2->addr.addr_len)
 656                 return -1;
 657         return memcmp(st1->addr.addr, st2->addr.addr, st1->addr.addr_len);
 658 }
 659
 660 struct dnet_check_temp_db {
 661         struct eblob_backend *b;
 662         struct eblob_log log;
 663         atomic_t refcnt;
 664 };
 665
 666 struct dnet_check_params {
 667         struct dnet_check_temp_db *db;
 668         int group_num;
 669         int *groups;
 670 };
 671
 672
 673 static inline struct dnet_check_temp_db * dnet_check_temp_db_get(struct dnet_check_temp_db *db) {
 674         atomic_inc(&db->refcnt);
 675         return db;
 676 }
 677
 678 static inline void dnet_check_temp_db_put(struct dnet_check_temp_db *db) {
 679         if (atomic_dec_and_test(&db->refcnt)) {
 680                 eblob_remove_blobs(db->b);
 681                 eblob_cleanup(db->b);
 682                 free(db);
 683         }
 684 }
 685
 686 int dnet_check(struct dnet_node *n, struct dnet_meta_container *mc, struct dnet_bulk_array *bulk_array, int check_copies, struct dnet_check_params *params);
 687 int dnet_db_list(struct dnet_net_state *st, struct dnet_cmd *cmd);
 688 int dnet_cmd_bulk_check(struct dnet_net_state *orig, struct dnet_cmd *cmd, void *data);
 689 int dnet_request_bulk_check(struct dnet_node *n, struct dnet_bulk_state *state, struct dnet_check_params *params);
 690
 691 struct dnet_meta_update * dnet_get_meta_update(struct dnet_node *n, struct dnet_meta_container *mc,
 692                 struct dnet_meta_update *meta_update);
 693
 694 int dnet_update_ts_metadata(struct eblob_backend *b, struct dnet_raw_id *id, uint64_t flags_set, uint64_t flags_clear);
 695 int dnet_update_ts_metadata_raw(struct dnet_meta_container *mc, uint64_t flags_set, uint64_t flags_clear);
 696
 697 int dnet_process_meta(struct dnet_net_state *st, struct dnet_cmd *cmd, struct dnet_io_attr *io);
 698 void dnet_convert_metadata(struct dnet_node *n __unused, void *data, int size);
 699
 700 void dnet_monitor_exit(struct dnet_node *n);
 701 int dnet_monitor_init(struct dnet_node *n, struct dnet_config *cfg);
 702
 703 int dnet_set_name(char *name);
 704 int dnet_ioprio_set(long pid, int class_id, int prio);
 705 int dnet_ioprio_get(long pid);
 706
 707 struct dnet_map_fd {
 708         int                     fd;
 709         uint64_t                offset, size;
 710
 711         void                    *data;
 712
 713         uint64_t                mapped_size;
 714         void                    *mapped_data;
 715 };
 716
 717 int dnet_data_map(struct dnet_map_fd *map);
 718 void dnet_data_unmap(struct dnet_map_fd *map);
 719
 720 void *dnet_read_data_wait_raw(struct dnet_session *s, struct dnet_id *id, struct dnet_io_attr *io, int cmd, uint64_t cflags, int *errp);
 721
 722 int dnet_srw_init(struct dnet_node *n, struct dnet_config *cfg);
 723 void dnet_srw_cleanup(struct dnet_node *n);
 724 int dnet_cmd_exec_raw(struct dnet_net_state *st, struct dnet_cmd *cmd, struct sph *header, const void *data);
 725
 726 int dnet_cache_init(struct dnet_node *n);
 727 void dnet_cache_cleanup(struct dnet_node *n);
 728 int dnet_cmd_cache_io(struct dnet_net_state *st, struct dnet_cmd *cmd, struct dnet_io_attr *io, char *data);
 729
 730 int __attribute__((weak)) dnet_remove_local(struct dnet_node *n, struct dnet_id *id);
 731
 732 int dnet_discovery(struct dnet_node *n);
 733
 734 #ifdef __cplusplus
 735 }
 736 #endif
 737
 738 #endif /* __DNET_ELLIPTICS_H */