1 /* prot.c - protocol implementation */
3 /* Copyright (C) 2007 Keith Rarick and Philotic Inc.
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 3 of the License, or
8 * (at your option) any later version.
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.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include <sys/resource.h>
40 /* job body cannot be greater than this many bytes long */
41 size_t job_data_size_limit
= JOB_DATA_SIZE_LIMIT_DEFAULT
;
44 "ABCDEFGHIJKLMNOPQRSTUVWXYZ" \
45 "abcdefghijklmnopqrstuvwxyz" \
48 #define CMD_PUT "put "
49 #define CMD_PEEKJOB "peek "
50 #define CMD_PEEK_READY "peek-ready"
51 #define CMD_PEEK_DELAYED "peek-delayed"
52 #define CMD_PEEK_BURIED "peek-buried"
53 #define CMD_RESERVE "reserve"
54 #define CMD_RESERVE_TIMEOUT "reserve-with-timeout "
55 #define CMD_DELETE "delete "
56 #define CMD_RELEASE "release "
57 #define CMD_BURY "bury "
58 #define CMD_KICK "kick "
59 #define CMD_TOUCH "touch "
60 #define CMD_STATS "stats"
61 #define CMD_JOBSTATS "stats-job "
62 #define CMD_USE "use "
63 #define CMD_WATCH "watch "
64 #define CMD_IGNORE "ignore "
65 #define CMD_LIST_TUBES "list-tubes"
66 #define CMD_LIST_TUBE_USED "list-tube-used"
67 #define CMD_LIST_TUBES_WATCHED "list-tubes-watched"
68 #define CMD_STATS_TUBE "stats-tube "
70 #define CONSTSTRLEN(m) (sizeof(m) - 1)
72 #define CMD_PEEK_READY_LEN CONSTSTRLEN(CMD_PEEK_READY)
73 #define CMD_PEEK_DELAYED_LEN CONSTSTRLEN(CMD_PEEK_DELAYED)
74 #define CMD_PEEK_BURIED_LEN CONSTSTRLEN(CMD_PEEK_BURIED)
75 #define CMD_PEEKJOB_LEN CONSTSTRLEN(CMD_PEEKJOB)
76 #define CMD_RESERVE_LEN CONSTSTRLEN(CMD_RESERVE)
77 #define CMD_RESERVE_TIMEOUT_LEN CONSTSTRLEN(CMD_RESERVE_TIMEOUT)
78 #define CMD_DELETE_LEN CONSTSTRLEN(CMD_DELETE)
79 #define CMD_RELEASE_LEN CONSTSTRLEN(CMD_RELEASE)
80 #define CMD_BURY_LEN CONSTSTRLEN(CMD_BURY)
81 #define CMD_KICK_LEN CONSTSTRLEN(CMD_KICK)
82 #define CMD_TOUCH_LEN CONSTSTRLEN(CMD_TOUCH)
83 #define CMD_STATS_LEN CONSTSTRLEN(CMD_STATS)
84 #define CMD_JOBSTATS_LEN CONSTSTRLEN(CMD_JOBSTATS)
85 #define CMD_USE_LEN CONSTSTRLEN(CMD_USE)
86 #define CMD_WATCH_LEN CONSTSTRLEN(CMD_WATCH)
87 #define CMD_IGNORE_LEN CONSTSTRLEN(CMD_IGNORE)
88 #define CMD_LIST_TUBES_LEN CONSTSTRLEN(CMD_LIST_TUBES)
89 #define CMD_LIST_TUBE_USED_LEN CONSTSTRLEN(CMD_LIST_TUBE_USED)
90 #define CMD_LIST_TUBES_WATCHED_LEN CONSTSTRLEN(CMD_LIST_TUBES_WATCHED)
91 #define CMD_STATS_TUBE_LEN CONSTSTRLEN(CMD_STATS_TUBE)
93 #define MSG_FOUND "FOUND"
94 #define MSG_NOTFOUND "NOT_FOUND\r\n"
95 #define MSG_RESERVED "RESERVED"
96 #define MSG_DEADLINE_SOON "DEADLINE_SOON\r\n"
97 #define MSG_TIMED_OUT "TIMED_OUT\r\n"
98 #define MSG_DELETED "DELETED\r\n"
99 #define MSG_RELEASED "RELEASED\r\n"
100 #define MSG_BURIED "BURIED\r\n"
101 #define MSG_TOUCHED "TOUCHED\r\n"
102 #define MSG_BURIED_FMT "BURIED %llu\r\n"
103 #define MSG_INSERTED_FMT "INSERTED %llu\r\n"
104 #define MSG_NOT_IGNORED "NOT_IGNORED\r\n"
106 #define MSG_NOTFOUND_LEN CONSTSTRLEN(MSG_NOTFOUND)
107 #define MSG_DELETED_LEN CONSTSTRLEN(MSG_DELETED)
108 #define MSG_TOUCHED_LEN CONSTSTRLEN(MSG_TOUCHED)
109 #define MSG_RELEASED_LEN CONSTSTRLEN(MSG_RELEASED)
110 #define MSG_BURIED_LEN CONSTSTRLEN(MSG_BURIED)
111 #define MSG_NOT_IGNORED_LEN CONSTSTRLEN(MSG_NOT_IGNORED)
113 #define MSG_OUT_OF_MEMORY "OUT_OF_MEMORY\r\n"
114 #define MSG_INTERNAL_ERROR "INTERNAL_ERROR\r\n"
115 #define MSG_DRAINING "DRAINING\r\n"
116 #define MSG_BAD_FORMAT "BAD_FORMAT\r\n"
117 #define MSG_UNKNOWN_COMMAND "UNKNOWN_COMMAND\r\n"
118 #define MSG_EXPECTED_CRLF "EXPECTED_CRLF\r\n"
119 #define MSG_JOB_TOO_BIG "JOB_TOO_BIG\r\n"
121 #define STATE_WANTCOMMAND 0
122 #define STATE_WANTDATA 1
123 #define STATE_SENDJOB 2
124 #define STATE_SENDWORD 3
126 #define STATE_BITBUCKET 5
137 #define OP_JOBSTATS 9
138 #define OP_PEEK_BURIED 10
142 #define OP_LIST_TUBES 14
143 #define OP_LIST_TUBE_USED 15
144 #define OP_LIST_TUBES_WATCHED 16
145 #define OP_STATS_TUBE 17
146 #define OP_PEEK_READY 18
147 #define OP_PEEK_DELAYED 19
148 #define OP_RESERVE_TIMEOUT 20
152 #define STATS_FMT "---\n" \
153 "current-jobs-urgent: %u\n" \
154 "current-jobs-ready: %u\n" \
155 "current-jobs-reserved: %u\n" \
156 "current-jobs-delayed: %u\n" \
157 "current-jobs-buried: %u\n" \
160 "cmd-peek-ready: %llu\n" \
161 "cmd-peek-delayed: %llu\n" \
162 "cmd-peek-buried: %llu\n" \
163 "cmd-reserve: %llu\n" \
164 "cmd-reserve-with-timeout: %llu\n" \
165 "cmd-delete: %llu\n" \
166 "cmd-release: %llu\n" \
168 "cmd-watch: %llu\n" \
169 "cmd-ignore: %llu\n" \
172 "cmd-touch: %llu\n" \
173 "cmd-stats: %llu\n" \
174 "cmd-stats-job: %llu\n" \
175 "cmd-stats-tube: %llu\n" \
176 "cmd-list-tubes: %llu\n" \
177 "cmd-list-tube-used: %llu\n" \
178 "cmd-list-tubes-watched: %llu\n" \
179 "job-timeouts: %llu\n" \
180 "total-jobs: %llu\n" \
181 "max-job-size: %zu\n" \
182 "current-tubes: %zu\n" \
183 "current-connections: %u\n" \
184 "current-producers: %u\n" \
185 "current-workers: %u\n" \
186 "current-waiting: %u\n" \
187 "total-connections: %u\n" \
190 "rusage-utime: %d.%06d\n" \
191 "rusage-stime: %d.%06d\n" \
193 "binlog-oldest-index: %s\n" \
194 "binlog-current-index: %s\n" \
195 "binlog-max-size: %u\n" \
198 #define STATS_TUBE_FMT "---\n" \
200 "current-jobs-urgent: %u\n" \
201 "current-jobs-ready: %u\n" \
202 "current-jobs-reserved: %u\n" \
203 "current-jobs-delayed: %u\n" \
204 "current-jobs-buried: %u\n" \
205 "total-jobs: %llu\n" \
206 "current-using: %u\n" \
207 "current-watching: %u\n" \
208 "current-waiting: %u\n" \
211 #define JOB_STATS_FMT "---\n" \
226 /* this number is pretty arbitrary */
227 #define BUCKET_BUF_SIZE 1024
229 static char bucket
[BUCKET_BUF_SIZE
];
231 static unsigned int ready_ct
= 0;
232 static struct stats global_stat
= {0, 0, 0, 0, 0};
234 static tube default_tube
;
236 static int drain_mode
= 0;
237 static time_t start_time
;
238 static unsigned long long int op_ct
[TOTAL_OPS
], timeout_ct
= 0;
241 /* Doubly-linked list of connections with at least one reserved job. */
242 static struct conn running
= { &running
, &running
, 0 };
245 static const char * op_names
[] = {
262 CMD_LIST_TUBES_WATCHED
,
271 static job
remove_buried_job(job j
);
276 return job_list_any_p(&t
->buried
);
280 reply(conn c
, const char *line
, int len
, int state
)
286 r
= conn_update_evq(c
, EV_WRITE
| EV_PERSIST
);
287 if (r
== -1) return twarnx("conn_update_evq() failed"), conn_close(c
);
293 dprintf("sending reply: %.*s", len
, line
);
296 #define reply_msg(c,m) reply((c),(m),CONSTSTRLEN(m),STATE_SENDWORD)
298 #define reply_serr(c,e) (twarnx("server error: %s",(e)),\
302 reply_line(conn c
, int state
, const char *fmt
, ...)
308 r
= vsnprintf(c
->reply_buf
, LINE_BUF_SIZE
, fmt
, ap
);
311 /* Make sure the buffer was big enough. If not, we have a bug. */
312 if (r
>= LINE_BUF_SIZE
) return reply_serr(c
, MSG_INTERNAL_ERROR
);
314 return reply(c
, c
->reply_buf
, r
, state
);
318 reply_job(conn c
, job j
, const char *word
)
320 /* tell this connection which job to send */
324 return reply_line(c
, STATE_SENDJOB
, "%s %llu %u\r\n",
325 word
, j
->id
, j
->body_size
- 2);
329 remove_waiting_conn(conn c
)
334 if (!conn_waiting(c
)) return NULL
;
336 c
->type
&= ~CONN_TYPE_WAITING
;
337 global_stat
.waiting_ct
--;
338 for (i
= 0; i
< c
->watch
.used
; i
++) {
339 t
= c
->watch
.items
[i
];
340 t
->stat
.waiting_ct
--;
341 ms_remove(&t
->waiting
, c
);
347 reserve_job(conn c
, job j
)
349 j
->deadline
= time(NULL
) + j
->ttr
;
350 global_stat
.reserved_ct
++; /* stats */
351 j
->tube
->stat
.reserved_ct
++;
352 conn_insert(&running
, c
);
353 j
->state
= JOB_STATE_RESERVED
;
354 job_insert(&c
->reserved_jobs
, j
);
356 if (c
->soonest_job
&& j
->deadline
< c
->soonest_job
->deadline
) {
359 return reply_job(c
, j
, MSG_RESERVED
);
367 job j
= NULL
, candidate
;
369 dprintf("tubes.used = %zu\n", tubes
.used
);
370 for (i
= 0; i
< tubes
.used
; i
++) {
372 dprintf("for %s t->waiting.used=%zu t->ready.used=%d\n",
373 t
->name
, t
->waiting
.used
, t
->ready
.used
);
374 if (t
->waiting
.used
&& t
->ready
.used
) {
375 candidate
= pq_peek(&t
->ready
);
376 if (!j
|| candidate
->id
< j
->id
) j
= candidate
;
378 dprintf("i = %zu, tubes.used = %zu\n", i
, tubes
.used
);
389 dprintf("processing queue\n");
390 while ((j
= next_eligible_job())) {
391 dprintf("got eligible job %llu in %s\n", j
->id
, j
->tube
->name
);
392 j
= pq_take(&j
->tube
->ready
);
394 if (j
->pri
< URGENT_THRESHOLD
) {
395 global_stat
.urgent_ct
--;
396 j
->tube
->stat
.urgent_ct
--;
398 reserve_job(remove_waiting_conn(ms_take(&j
->tube
->waiting
)), j
);
409 for (i
= 0; i
< tubes
.used
; i
++) {
411 nj
= pq_peek(&t
->delay
);
413 if (!j
|| nj
->deadline
< j
->deadline
) j
= nj
;
420 set_main_delay_timeout()
424 set_main_timeout((j
= delay_q_peek()) ? j
->deadline
: 0);
428 enqueue_job(job j
, unsigned int delay
)
434 j
->deadline
= time(NULL
) + delay
;
435 r
= pq_give(&j
->tube
->delay
, j
);
437 j
->state
= JOB_STATE_DELAYED
;
438 set_main_delay_timeout();
440 r
= pq_give(&j
->tube
->ready
, j
);
442 j
->state
= JOB_STATE_READY
;
444 if (j
->pri
< URGENT_THRESHOLD
) {
445 global_stat
.urgent_ct
++;
446 j
->tube
->stat
.urgent_ct
++;
457 job_insert(&j
->tube
->buried
, j
);
458 global_stat
.buried_ct
++;
459 j
->tube
->stat
.buried_ct
++;
460 j
->state
= JOB_STATE_BURIED
;
467 enqueue_reserved_jobs(conn c
)
472 while (job_list_any_p(&c
->reserved_jobs
)) {
473 j
= job_remove(c
->reserved_jobs
.next
);
474 r
= enqueue_job(j
, 0);
476 global_stat
.reserved_ct
--;
477 j
->tube
->stat
.reserved_ct
--;
478 c
->soonest_job
= NULL
;
479 if (!job_list_any_p(&c
->reserved_jobs
)) conn_remove(c
);
486 job j
= delay_q_peek();
487 return j
? pq_take(&j
->tube
->delay
) : NULL
;
491 kick_buried_job(tube t
)
496 if (!buried_job_p(t
)) return 0;
497 j
= remove_buried_job(t
->buried
.next
);
499 r
= enqueue_job(j
, 0);
502 /* ready queue is full, so bury it */
512 unsigned int count
= 0;
514 for (i
= 0; i
< tubes
.used
; i
++) {
516 count
+= t
->delay
.used
;
522 kick_delayed_job(tube t
)
527 j
= pq_take(&t
->delay
);
530 r
= enqueue_job(j
, 0);
533 /* ready queue is full, so delay it again */
534 r
= enqueue_job(j
, j
->delay
);
542 /* return the number of jobs successfully kicked */
544 kick_buried_jobs(tube t
, unsigned int n
)
547 for (i
= 0; (i
< n
) && kick_buried_job(t
); ++i
);
551 /* return the number of jobs successfully kicked */
553 kick_delayed_jobs(tube t
, unsigned int n
)
556 for (i
= 0; (i
< n
) && kick_delayed_job(t
); ++i
);
561 kick_jobs(tube t
, unsigned int n
)
563 if (buried_job_p(t
)) return kick_buried_jobs(t
, n
);
564 return kick_delayed_jobs(t
, n
);
568 remove_buried_job(job j
)
570 if (!j
|| j
->state
!= JOB_STATE_BURIED
) return NULL
;
573 global_stat
.buried_ct
--;
574 j
->tube
->stat
.buried_ct
--;
580 remove_ready_job(job j
)
582 if (!j
|| j
->state
!= JOB_STATE_READY
) return NULL
;
583 j
= pq_remove(&j
->tube
->ready
, j
);
586 if (j
->pri
< URGENT_THRESHOLD
) {
587 global_stat
.urgent_ct
--;
588 j
->tube
->stat
.urgent_ct
--;
595 enqueue_waiting_conn(conn c
)
600 global_stat
.waiting_ct
++;
601 c
->type
|= CONN_TYPE_WAITING
;
602 for (i
= 0; i
< c
->watch
.used
; i
++) {
603 t
= c
->watch
.items
[i
];
604 t
->stat
.waiting_ct
++;
605 ms_append(&t
->waiting
, c
);
610 find_reserved_job_in_conn(conn c
, job j
)
612 return (j
&& j
->reserver
== c
&& j
->state
== JOB_STATE_RESERVED
) ? j
: NULL
;
616 touch_job(conn c
, job j
)
618 j
= find_reserved_job_in_conn(c
, j
);
620 j
->deadline
= time(NULL
) + j
->ttr
;
621 c
->soonest_job
= NULL
;
627 peek_job(unsigned long long int id
)
633 check_err(conn c
, const char *s
)
635 if (errno
== EAGAIN
) return;
636 if (errno
== EINTR
) return;
637 if (errno
== EWOULDBLOCK
) return;
644 /* Scan the given string for the sequence "\r\n" and return the line length.
645 * Always returns at least 2 if a match is found. Returns 0 if no match. */
647 scan_line_end(const char *s
, int size
)
651 match
= memchr(s
, '\r', size
- 1);
652 if (!match
) return 0;
654 /* this is safe because we only scan size - 1 chars above */
655 if (match
[1] == '\n') return match
- s
+ 2;
663 return scan_line_end(c
->cmd
, c
->cmd_read
);
666 /* parse the command line */
670 #define TEST_CMD(s,c,o) if (strncmp((s), (c), CONSTSTRLEN(c)) == 0) return (o);
671 TEST_CMD(c
->cmd
, CMD_PUT
, OP_PUT
);
672 TEST_CMD(c
->cmd
, CMD_PEEKJOB
, OP_PEEKJOB
);
673 TEST_CMD(c
->cmd
, CMD_PEEK_READY
, OP_PEEK_READY
);
674 TEST_CMD(c
->cmd
, CMD_PEEK_DELAYED
, OP_PEEK_DELAYED
);
675 TEST_CMD(c
->cmd
, CMD_PEEK_BURIED
, OP_PEEK_BURIED
);
676 TEST_CMD(c
->cmd
, CMD_RESERVE_TIMEOUT
, OP_RESERVE_TIMEOUT
);
677 TEST_CMD(c
->cmd
, CMD_RESERVE
, OP_RESERVE
);
678 TEST_CMD(c
->cmd
, CMD_DELETE
, OP_DELETE
);
679 TEST_CMD(c
->cmd
, CMD_RELEASE
, OP_RELEASE
);
680 TEST_CMD(c
->cmd
, CMD_BURY
, OP_BURY
);
681 TEST_CMD(c
->cmd
, CMD_KICK
, OP_KICK
);
682 TEST_CMD(c
->cmd
, CMD_TOUCH
, OP_TOUCH
);
683 TEST_CMD(c
->cmd
, CMD_JOBSTATS
, OP_JOBSTATS
);
684 TEST_CMD(c
->cmd
, CMD_STATS_TUBE
, OP_STATS_TUBE
);
685 TEST_CMD(c
->cmd
, CMD_STATS
, OP_STATS
);
686 TEST_CMD(c
->cmd
, CMD_USE
, OP_USE
);
687 TEST_CMD(c
->cmd
, CMD_WATCH
, OP_WATCH
);
688 TEST_CMD(c
->cmd
, CMD_IGNORE
, OP_IGNORE
);
689 TEST_CMD(c
->cmd
, CMD_LIST_TUBES_WATCHED
, OP_LIST_TUBES_WATCHED
);
690 TEST_CMD(c
->cmd
, CMD_LIST_TUBE_USED
, OP_LIST_TUBE_USED
);
691 TEST_CMD(c
->cmd
, CMD_LIST_TUBES
, OP_LIST_TUBES
);
695 /* Copy up to body_size trailing bytes into the job, then the rest into the cmd
696 * buffer. If c->in_job exists, this assumes that c->in_job->body is empty.
697 * This function is idempotent(). */
699 fill_extra_data(conn c
)
701 int extra_bytes
, job_data_bytes
= 0, cmd_bytes
;
703 if (!c
->fd
) return; /* the connection was closed */
704 if (!c
->cmd_len
) return; /* we don't have a complete command */
706 /* how many extra bytes did we read? */
707 extra_bytes
= c
->cmd_read
- c
->cmd_len
;
709 /* how many bytes should we put into the job body? */
711 job_data_bytes
= min(extra_bytes
, c
->in_job
->body_size
);
712 memcpy(c
->in_job
->body
, c
->cmd
+ c
->cmd_len
, job_data_bytes
);
713 c
->in_job_read
= job_data_bytes
;
714 } else if (c
->in_job_read
) {
715 /* we are in bit-bucket mode, throwing away data */
716 job_data_bytes
= min(extra_bytes
, c
->in_job_read
);
717 c
->in_job_read
-= job_data_bytes
;
720 /* how many bytes are left to go into the future cmd? */
721 cmd_bytes
= extra_bytes
- job_data_bytes
;
722 memmove(c
->cmd
, c
->cmd
+ c
->cmd_len
+ job_data_bytes
, cmd_bytes
);
723 c
->cmd_read
= cmd_bytes
;
724 c
->cmd_len
= 0; /* we no longer know the length of the new command */
728 enqueue_incoming_job(conn c
)
733 c
->in_job
= NULL
; /* the connection no longer owns this job */
736 /* check if the trailer is present and correct */
737 if (memcmp(j
->body
+ j
->body_size
- 2, "\r\n", 2)) {
739 return reply_msg(c
, MSG_EXPECTED_CRLF
);
744 return reply_serr(c
, MSG_DRAINING
);
747 /* we have a complete job, so let's stick it in the pqueue */
748 r
= enqueue_job(j
, j
->delay
);
749 op_ct
[OP_PUT
]++; /* stats */
750 global_stat
.total_jobs_ct
++;
751 j
->tube
->stat
.total_jobs_ct
++;
753 if (r
) return reply_line(c
, STATE_SENDWORD
, MSG_INSERTED_FMT
, j
->id
);
755 /* out of memory trying to grow the queue, so it gets buried */
757 reply_line(c
, STATE_SENDWORD
, MSG_BURIED_FMT
, j
->id
);
763 return time(NULL
) - start_time
;
767 fmt_stats(char *buf
, size_t size
, void *x
)
769 struct rusage ru
= {{0, 0}, {0, 0}};
770 getrusage(RUSAGE_SELF
, &ru
); /* don't care if it fails */
771 return snprintf(buf
, size
, STATS_FMT
,
772 global_stat
.urgent_ct
,
774 global_stat
.reserved_ct
,
775 get_delayed_job_ct(),
776 global_stat
.buried_ct
,
779 op_ct
[OP_PEEK_READY
],
780 op_ct
[OP_PEEK_DELAYED
],
781 op_ct
[OP_PEEK_BURIED
],
783 op_ct
[OP_RESERVE_TIMEOUT
],
794 op_ct
[OP_STATS_TUBE
],
795 op_ct
[OP_LIST_TUBES
],
796 op_ct
[OP_LIST_TUBE_USED
],
797 op_ct
[OP_LIST_TUBES_WATCHED
],
799 global_stat
.total_jobs_ct
,
803 count_cur_producers(),
805 global_stat
.waiting_ct
,
809 (int) ru
.ru_utime
.tv_sec
, (int) ru
.ru_utime
.tv_usec
,
810 (int) ru
.ru_stime
.tv_sec
, (int) ru
.ru_stime
.tv_usec
,
812 binlog_oldest_index(),
813 binlog_current_index(),
818 /* Read a priority value from the given buffer and place it in pri.
819 * Update end to point to the address after the last character consumed.
820 * Pri and end can be NULL. If they are both NULL, read_pri() will do the
821 * conversion and return the status code but not update any values. This is an
822 * easy way to check for errors.
823 * If end is NULL, read_pri will also check that the entire input string was
824 * consumed and return an error code otherwise.
825 * Return 0 on success, or nonzero on failure.
826 * If a failure occurs, pri and end are not modified. */
828 read_pri(unsigned int *pri
, const char *buf
, char **end
)
834 while (buf
[0] == ' ') buf
++;
835 if (!isdigit(buf
[0])) return -1;
836 tpri
= strtoul(buf
, &tend
, 10);
837 if (tend
== buf
) return -1;
838 if (errno
&& errno
!= ERANGE
) return -1;
839 if (!end
&& tend
[0] != '\0') return -1;
841 if (pri
) *pri
= tpri
;
842 if (end
) *end
= tend
;
846 /* Read a delay value from the given buffer and place it in delay.
847 * The interface and behavior are the same as in read_pri(). */
849 read_delay(unsigned int *delay
, const char *buf
, char **end
)
851 time_t now
= time(NULL
);
852 return read_pri(delay
, buf
, end
) ? : (now
+ *delay
< now
);
855 /* Read a timeout value from the given buffer and place it in ttr.
856 * The interface and behavior are the same as in read_pri(). */
858 read_ttr(unsigned int *ttr
, const char *buf
, char **end
)
860 return read_pri(ttr
, buf
, end
);
864 wait_for_job(conn c
, int timeout
)
868 c
->state
= STATE_WAIT
;
869 enqueue_waiting_conn(c
);
871 /* Set the pending timeout to the requested timeout amount */
872 c
->pending_timeout
= timeout
;
874 /* this conn is waiting, but we want to know if they hang up */
875 r
= conn_update_evq(c
, EV_READ
| EV_PERSIST
);
876 if (r
== -1) return twarnx("update events failed"), conn_close(c
);
879 typedef int(*fmt_fn
)(char *, size_t, void *);
882 do_stats(conn c
, fmt_fn fmt
, void *data
)
886 /* first, measure how big a buffer we will need */
887 stats_len
= fmt(NULL
, 0, data
) + 16;
889 c
->out_job
= allocate_job(stats_len
); /* fake job to hold stats data */
890 if (!c
->out_job
) return reply_serr(c
, MSG_OUT_OF_MEMORY
);
892 /* now actually format the stats data */
893 r
= fmt(c
->out_job
->body
, stats_len
, data
);
894 /* and set the actual body size */
895 c
->out_job
->body_size
= r
;
896 if (r
> stats_len
) return reply_serr(c
, MSG_INTERNAL_ERROR
);
899 return reply_line(c
, STATE_SENDJOB
, "OK %d\r\n", r
- 2);
903 do_list_tubes(conn c
, ms l
)
909 /* first, measure how big a buffer we will need */
910 resp_z
= 6; /* initial "---\n" and final "\r\n" */
911 for (i
= 0; i
< l
->used
; i
++) {
913 resp_z
+= 3 + strlen(t
->name
); /* including "- " and "\n" */
916 c
->out_job
= allocate_job(resp_z
); /* fake job to hold response data */
917 if (!c
->out_job
) return reply_serr(c
, MSG_OUT_OF_MEMORY
);
919 /* now actually format the response */
920 buf
= c
->out_job
->body
;
921 buf
+= snprintf(buf
, 5, "---\n");
922 for (i
= 0; i
< l
->used
; i
++) {
924 buf
+= snprintf(buf
, 4 + strlen(t
->name
), "- %s\n", t
->name
);
930 return reply_line(c
, STATE_SENDJOB
, "OK %d\r\n", resp_z
- 2);
934 fmt_job_stats(char *buf
, size_t size
, job j
)
939 return snprintf(buf
, size
, JOB_STATS_FMT
,
944 (unsigned int) (t
- j
->creation
),
947 (unsigned int) (j
->deadline
- t
),
955 fmt_stats_tube(char *buf
, size_t size
, tube t
)
957 return snprintf(buf
, size
, STATS_TUBE_FMT
,
964 t
->stat
.total_jobs_ct
,
971 maybe_enqueue_incoming_job(conn c
)
975 /* do we have a complete job? */
976 if (c
->in_job_read
== j
->body_size
) return enqueue_incoming_job(c
);
978 /* otherwise we have incomplete data, so just keep waiting */
979 c
->state
= STATE_WANTDATA
;
984 remove_this_reserved_job(conn c
, job j
)
988 global_stat
.reserved_ct
--;
989 j
->tube
->stat
.reserved_ct
--;
992 c
->soonest_job
= NULL
;
993 if (!job_list_any_p(&c
->reserved_jobs
)) conn_remove(c
);
998 remove_reserved_job(conn c
, job j
)
1000 return remove_this_reserved_job(c
, find_reserved_job_in_conn(c
, j
));
1004 name_is_ok(const char *name
, size_t max
)
1006 size_t len
= strlen(name
);
1007 return len
> 0 && len
<= max
&&
1008 strspn(name
, NAME_CHARS
) == len
&& name
[0] != '-';
1012 prot_remove_tube(tube t
)
1014 ms_remove(&tubes
, t
);
1018 dispatch_cmd(conn c
)
1020 int r
, i
, timeout
= -1;
1024 char *size_buf
, *delay_buf
, *ttr_buf
, *pri_buf
, *end_buf
, *name
;
1025 unsigned int pri
, delay
, ttr
, body_size
;
1026 unsigned long long int id
;
1029 /* NUL-terminate this string so we can use strtol and friends */
1030 c
->cmd
[c
->cmd_len
- 2] = '\0';
1032 /* check for possible maliciousness */
1033 if (strlen(c
->cmd
) != c
->cmd_len
- 2) {
1034 return reply_msg(c
, MSG_BAD_FORMAT
);
1037 type
= which_cmd(c
);
1038 dprintf("got %s command: \"%s\"\n", op_names
[(int) type
], c
->cmd
);
1042 r
= read_pri(&pri
, c
->cmd
+ 4, &delay_buf
);
1043 if (r
) return reply_msg(c
, MSG_BAD_FORMAT
);
1045 r
= read_delay(&delay
, delay_buf
, &ttr_buf
);
1046 if (r
) return reply_msg(c
, MSG_BAD_FORMAT
);
1048 r
= read_ttr(&ttr
, ttr_buf
, &size_buf
);
1049 if (r
) return reply_msg(c
, MSG_BAD_FORMAT
);
1052 body_size
= strtoul(size_buf
, &end_buf
, 10);
1053 if (errno
) return reply_msg(c
, MSG_BAD_FORMAT
);
1055 if (body_size
> job_data_size_limit
) {
1056 return reply_msg(c
, MSG_JOB_TOO_BIG
);
1059 /* don't allow trailing garbage */
1060 if (end_buf
[0] != '\0') return reply_msg(c
, MSG_BAD_FORMAT
);
1062 conn_set_producer(c
);
1064 c
->in_job
= make_job(pri
, delay
, ttr
? : 1, body_size
+ 2, c
->use
);
1068 /* throw away the job body and respond with OUT_OF_MEMORY */
1070 /* Invert the meaning of in_job_read while throwing away data -- it
1071 * counts the bytes that remain to be thrown away. */
1072 c
->in_job_read
= body_size
+ 2;
1075 if (c
->in_job_read
== 0) return reply_serr(c
, MSG_OUT_OF_MEMORY
);
1077 c
->state
= STATE_BITBUCKET
;
1083 /* it's possible we already have a complete job */
1084 maybe_enqueue_incoming_job(c
);
1088 /* don't allow trailing garbage */
1089 if (c
->cmd_len
!= CMD_PEEK_READY_LEN
+ 2) {
1090 return reply_msg(c
, MSG_BAD_FORMAT
);
1094 j
= job_copy(pq_peek(&c
->use
->ready
));
1096 if (!j
) return reply(c
, MSG_NOTFOUND
, MSG_NOTFOUND_LEN
, STATE_SENDWORD
);
1098 reply_job(c
, j
, MSG_FOUND
);
1100 case OP_PEEK_DELAYED
:
1101 /* don't allow trailing garbage */
1102 if (c
->cmd_len
!= CMD_PEEK_DELAYED_LEN
+ 2) {
1103 return reply_msg(c
, MSG_BAD_FORMAT
);
1107 j
= job_copy(pq_peek(&c
->use
->delay
));
1109 if (!j
) return reply(c
, MSG_NOTFOUND
, MSG_NOTFOUND_LEN
, STATE_SENDWORD
);
1111 reply_job(c
, j
, MSG_FOUND
);
1113 case OP_PEEK_BURIED
:
1114 /* don't allow trailing garbage */
1115 if (c
->cmd_len
!= CMD_PEEK_BURIED_LEN
+ 2) {
1116 return reply_msg(c
, MSG_BAD_FORMAT
);
1120 j
= job_copy(buried_job_p(c
->use
)? j
= c
->use
->buried
.next
: NULL
);
1122 if (!j
) return reply(c
, MSG_NOTFOUND
, MSG_NOTFOUND_LEN
, STATE_SENDWORD
);
1124 reply_job(c
, j
, MSG_FOUND
);
1128 id
= strtoull(c
->cmd
+ CMD_PEEKJOB_LEN
, &end_buf
, 10);
1129 if (errno
) return reply_msg(c
, MSG_BAD_FORMAT
);
1132 /* So, peek is annoying, because some other connection might free the
1133 * job while we are still trying to write it out. So we copy it and
1134 * then free the copy when it's done sending. */
1135 j
= job_copy(peek_job(id
));
1137 if (!j
) return reply(c
, MSG_NOTFOUND
, MSG_NOTFOUND_LEN
, STATE_SENDWORD
);
1139 reply_job(c
, j
, MSG_FOUND
);
1141 case OP_RESERVE_TIMEOUT
:
1143 timeout
= strtol(c
->cmd
+ CMD_RESERVE_TIMEOUT_LEN
, &end_buf
, 10);
1144 if (errno
) return reply_msg(c
, MSG_BAD_FORMAT
);
1145 case OP_RESERVE
: /* FALLTHROUGH */
1146 /* don't allow trailing garbage */
1147 if (type
== OP_RESERVE
&& c
->cmd_len
!= CMD_RESERVE_LEN
+ 2) {
1148 return reply_msg(c
, MSG_BAD_FORMAT
);
1154 if (conn_has_close_deadline(c
) && !conn_ready(c
)) {
1155 return reply_msg(c
, MSG_DEADLINE_SOON
);
1158 /* try to get a new job for this guy */
1159 wait_for_job(c
, timeout
);
1164 id
= strtoull(c
->cmd
+ CMD_DELETE_LEN
, &end_buf
, 10);
1165 if (errno
) return reply_msg(c
, MSG_BAD_FORMAT
);
1169 j
= remove_reserved_job(c
, j
) ? :
1170 remove_ready_job(j
) ? :
1171 remove_buried_job(j
);
1173 if (!j
) return reply(c
, MSG_NOTFOUND
, MSG_NOTFOUND_LEN
, STATE_SENDWORD
);
1175 j
->state
= JOB_STATE_INVALID
;
1176 binlog_write_job(j
);
1179 reply(c
, MSG_DELETED
, MSG_DELETED_LEN
, STATE_SENDWORD
);
1183 id
= strtoull(c
->cmd
+ CMD_RELEASE_LEN
, &pri_buf
, 10);
1184 if (errno
) return reply_msg(c
, MSG_BAD_FORMAT
);
1186 r
= read_pri(&pri
, pri_buf
, &delay_buf
);
1187 if (r
) return reply_msg(c
, MSG_BAD_FORMAT
);
1189 r
= read_delay(&delay
, delay_buf
, NULL
);
1190 if (r
) return reply_msg(c
, MSG_BAD_FORMAT
);
1193 j
= remove_reserved_job(c
, job_find(id
));
1195 if (!j
) return reply(c
, MSG_NOTFOUND
, MSG_NOTFOUND_LEN
, STATE_SENDWORD
);
1200 r
= enqueue_job(j
, delay
);
1201 if (r
) return reply(c
, MSG_RELEASED
, MSG_RELEASED_LEN
, STATE_SENDWORD
);
1203 /* out of memory trying to grow the queue, so it gets buried */
1205 reply(c
, MSG_BURIED
, MSG_BURIED_LEN
, STATE_SENDWORD
);
1209 id
= strtoull(c
->cmd
+ CMD_BURY_LEN
, &pri_buf
, 10);
1210 if (errno
) return reply_msg(c
, MSG_BAD_FORMAT
);
1212 r
= read_pri(&pri
, pri_buf
, NULL
);
1213 if (r
) return reply_msg(c
, MSG_BAD_FORMAT
);
1216 j
= remove_reserved_job(c
, job_find(id
));
1218 if (!j
) return reply(c
, MSG_NOTFOUND
, MSG_NOTFOUND_LEN
, STATE_SENDWORD
);
1222 reply(c
, MSG_BURIED
, MSG_BURIED_LEN
, STATE_SENDWORD
);
1226 count
= strtoul(c
->cmd
+ CMD_KICK_LEN
, &end_buf
, 10);
1227 if (end_buf
== c
->cmd
+ CMD_KICK_LEN
) {
1228 return reply_msg(c
, MSG_BAD_FORMAT
);
1230 if (errno
) return reply_msg(c
, MSG_BAD_FORMAT
);
1234 i
= kick_jobs(c
->use
, count
);
1236 return reply_line(c
, STATE_SENDWORD
, "KICKED %u\r\n", i
);
1239 id
= strtoull(c
->cmd
+ CMD_TOUCH_LEN
, &end_buf
, 10);
1240 if (errno
) return twarn("strtoull"), reply_msg(c
, MSG_BAD_FORMAT
);
1244 j
= touch_job(c
, job_find(id
));
1247 reply(c
, MSG_TOUCHED
, MSG_TOUCHED_LEN
, STATE_SENDWORD
);
1249 return reply(c
, MSG_NOTFOUND
, MSG_NOTFOUND_LEN
, STATE_SENDWORD
);
1253 /* don't allow trailing garbage */
1254 if (c
->cmd_len
!= CMD_STATS_LEN
+ 2) {
1255 return reply_msg(c
, MSG_BAD_FORMAT
);
1260 do_stats(c
, fmt_stats
, NULL
);
1264 id
= strtoull(c
->cmd
+ CMD_JOBSTATS_LEN
, &end_buf
, 10);
1265 if (errno
) return reply_msg(c
, MSG_BAD_FORMAT
);
1270 if (!j
) return reply(c
, MSG_NOTFOUND
, MSG_NOTFOUND_LEN
, STATE_SENDWORD
);
1272 if (!j
->tube
) return reply_serr(c
, MSG_INTERNAL_ERROR
);
1273 do_stats(c
, (fmt_fn
) fmt_job_stats
, j
);
1276 name
= c
->cmd
+ CMD_STATS_TUBE_LEN
;
1277 if (!name_is_ok(name
, 200)) return reply_msg(c
, MSG_BAD_FORMAT
);
1281 t
= tube_find(name
);
1282 if (!t
) return reply_msg(c
, MSG_NOTFOUND
);
1284 do_stats(c
, (fmt_fn
) fmt_stats_tube
, t
);
1288 /* don't allow trailing garbage */
1289 if (c
->cmd_len
!= CMD_LIST_TUBES_LEN
+ 2) {
1290 return reply_msg(c
, MSG_BAD_FORMAT
);
1294 do_list_tubes(c
, &tubes
);
1296 case OP_LIST_TUBE_USED
:
1297 /* don't allow trailing garbage */
1298 if (c
->cmd_len
!= CMD_LIST_TUBE_USED_LEN
+ 2) {
1299 return reply_msg(c
, MSG_BAD_FORMAT
);
1303 reply_line(c
, STATE_SENDWORD
, "USING %s\r\n", c
->use
->name
);
1305 case OP_LIST_TUBES_WATCHED
:
1306 /* don't allow trailing garbage */
1307 if (c
->cmd_len
!= CMD_LIST_TUBES_WATCHED_LEN
+ 2) {
1308 return reply_msg(c
, MSG_BAD_FORMAT
);
1312 do_list_tubes(c
, &c
->watch
);
1315 name
= c
->cmd
+ CMD_USE_LEN
;
1316 if (!name_is_ok(name
, 200)) return reply_msg(c
, MSG_BAD_FORMAT
);
1319 TUBE_ASSIGN(t
, tube_find_or_make(name
));
1320 if (!t
) return reply_serr(c
, MSG_OUT_OF_MEMORY
);
1323 TUBE_ASSIGN(c
->use
, t
);
1324 TUBE_ASSIGN(t
, NULL
);
1327 reply_line(c
, STATE_SENDWORD
, "USING %s\r\n", c
->use
->name
);
1330 name
= c
->cmd
+ CMD_WATCH_LEN
;
1331 if (!name_is_ok(name
, 200)) return reply_msg(c
, MSG_BAD_FORMAT
);
1334 TUBE_ASSIGN(t
, tube_find_or_make(name
));
1335 if (!t
) return reply_serr(c
, MSG_OUT_OF_MEMORY
);
1338 if (!ms_contains(&c
->watch
, t
)) r
= ms_append(&c
->watch
, t
);
1339 TUBE_ASSIGN(t
, NULL
);
1340 if (!r
) return reply_serr(c
, MSG_OUT_OF_MEMORY
);
1342 reply_line(c
, STATE_SENDWORD
, "WATCHING %d\r\n", c
->watch
.used
);
1345 name
= c
->cmd
+ CMD_IGNORE_LEN
;
1346 if (!name_is_ok(name
, 200)) return reply_msg(c
, MSG_BAD_FORMAT
);
1350 for (i
= 0; i
< c
->watch
.used
; i
++) {
1351 t
= c
->watch
.items
[i
];
1352 if (strncmp(t
->name
, name
, MAX_TUBE_NAME_LEN
) == 0) break;
1356 if (t
&& c
->watch
.used
< 2) return reply_msg(c
, MSG_NOT_IGNORED
);
1358 if (t
) ms_remove(&c
->watch
, t
); /* may free t if refcount => 0 */
1361 reply_line(c
, STATE_SENDWORD
, "WATCHING %d\r\n", c
->watch
.used
);
1364 return reply_msg(c
, MSG_UNKNOWN_COMMAND
);
1368 /* There are three reasons this function may be called. We need to check for
1371 * 1. A reserved job has run out of time.
1372 * 2. A waiting client's reserved job has entered the safety margin.
1373 * 3. A waiting client's requested timeout has occurred.
1375 * If any of these happen, we must do the appropriate thing. */
1377 h_conn_timeout(conn c
)
1379 int r
, should_timeout
= 0;
1382 /* Check if the client was trying to reserve a job. */
1383 if (conn_waiting(c
) && conn_has_close_deadline(c
)) should_timeout
= 1;
1385 /* Check if any reserved jobs have run out of time. We should do this
1386 * whether or not the client is waiting for a new reservation. */
1387 while ((j
= soonest_job(c
))) {
1388 if (j
->deadline
> time(NULL
)) break;
1389 timeout_ct
++; /* stats */
1391 r
= enqueue_job(remove_this_reserved_job(c
, j
), 0);
1392 if (!r
) bury_job(j
); /* there was no room in the queue, so bury it */
1393 r
= conn_update_evq(c
, c
->evq
.ev_events
);
1394 if (r
== -1) return twarnx("conn_update_evq() failed"), conn_close(c
);
1397 if (should_timeout
) {
1398 dprintf("conn_waiting(%p) = %d\n", c
, conn_waiting(c
));
1399 return reply_msg(remove_waiting_conn(c
), MSG_DEADLINE_SOON
);
1400 } else if (conn_waiting(c
) && c
->pending_timeout
>= 0) {
1401 dprintf("conn_waiting(%p) = %d\n", c
, conn_waiting(c
));
1402 c
->pending_timeout
= -1;
1403 return reply_msg(remove_waiting_conn(c
), MSG_TIMED_OUT
);
1408 enter_drain_mode(int sig
)
1425 r
= conn_update_evq(c
, EV_READ
| EV_PERSIST
);
1426 if (r
== -1) return twarnx("update events failed"), conn_close(c
);
1428 /* was this a peek or stats command? */
1429 if (!has_reserved_this_job(c
, c
->out_job
)) job_free(c
->out_job
);
1432 c
->reply_sent
= 0; /* now that we're done, reset this */
1433 c
->state
= STATE_WANTCOMMAND
;
1441 struct iovec iov
[2];
1444 case STATE_WANTCOMMAND
:
1445 r
= read(c
->fd
, c
->cmd
+ c
->cmd_read
, LINE_BUF_SIZE
- c
->cmd_read
);
1446 if (r
== -1) return check_err(c
, "read()");
1447 if (r
== 0) return conn_close(c
); /* the client hung up */
1449 c
->cmd_read
+= r
; /* we got some bytes */
1451 c
->cmd_len
= cmd_len(c
); /* find the EOL */
1453 /* yay, complete command line */
1454 if (c
->cmd_len
) return do_cmd(c
);
1456 /* c->cmd_read > LINE_BUF_SIZE can't happen */
1458 /* command line too long? */
1459 if (c
->cmd_read
== LINE_BUF_SIZE
) {
1460 c
->cmd_read
= 0; /* discard the input so far */
1461 return reply_msg(c
, MSG_BAD_FORMAT
);
1464 /* otherwise we have an incomplete line, so just keep waiting */
1466 case STATE_BITBUCKET
:
1467 /* Invert the meaning of in_job_read while throwing away data -- it
1468 * counts the bytes that remain to be thrown away. */
1469 to_read
= min(c
->in_job_read
, BUCKET_BUF_SIZE
);
1470 r
= read(c
->fd
, bucket
, to_read
);
1471 if (r
== -1) return check_err(c
, "read()");
1472 if (r
== 0) return conn_close(c
); /* the client hung up */
1474 c
->in_job_read
-= r
; /* we got some bytes */
1476 /* (c->in_job_read < 0) can't happen */
1478 if (c
->in_job_read
== 0) return reply_serr(c
, MSG_OUT_OF_MEMORY
);
1480 case STATE_WANTDATA
:
1483 r
= read(c
->fd
, j
->body
+ c
->in_job_read
, j
->body_size
-c
->in_job_read
);
1484 if (r
== -1) return check_err(c
, "read()");
1485 if (r
== 0) return conn_close(c
); /* the client hung up */
1487 c
->in_job_read
+= r
; /* we got some bytes */
1489 /* (j->in_job_read > j->body_size) can't happen */
1491 maybe_enqueue_incoming_job(c
);
1493 case STATE_SENDWORD
:
1494 r
= write(c
->fd
, c
->reply
+ c
->reply_sent
, c
->reply_len
- c
->reply_sent
);
1495 if (r
== -1) return check_err(c
, "write()");
1496 if (r
== 0) return conn_close(c
); /* the client hung up */
1498 c
->reply_sent
+= r
; /* we got some bytes */
1500 /* (c->reply_sent > c->reply_len) can't happen */
1502 if (c
->reply_sent
== c
->reply_len
) return reset_conn(c
);
1504 /* otherwise we sent an incomplete reply, so just keep waiting */
1509 iov
[0].iov_base
= (void *)(c
->reply
+ c
->reply_sent
);
1510 iov
[0].iov_len
= c
->reply_len
- c
->reply_sent
; /* maybe 0 */
1511 iov
[1].iov_base
= j
->body
+ c
->out_job_sent
;
1512 iov
[1].iov_len
= j
->body_size
- c
->out_job_sent
;
1514 r
= writev(c
->fd
, iov
, 2);
1515 if (r
== -1) return check_err(c
, "writev()");
1516 if (r
== 0) return conn_close(c
); /* the client hung up */
1518 /* update the sent values */
1520 if (c
->reply_sent
>= c
->reply_len
) {
1521 c
->out_job_sent
+= c
->reply_sent
- c
->reply_len
;
1522 c
->reply_sent
= c
->reply_len
;
1525 /* (c->out_job_sent > j->body_size) can't happen */
1528 if (c
->out_job_sent
== j
->body_size
) return reset_conn(c
);
1530 /* otherwise we sent incomplete data, so just keep waiting */
1532 case STATE_WAIT
: /* keep an eye out in case they hang up */
1533 /* but don't hang up just because our buffer is full */
1534 if (LINE_BUF_SIZE
- c
->cmd_read
< 1) break;
1536 r
= read(c
->fd
, c
->cmd
+ c
->cmd_read
, LINE_BUF_SIZE
- c
->cmd_read
);
1537 if (r
== -1) return check_err(c
, "read()");
1538 if (r
== 0) return conn_close(c
); /* the client hung up */
1539 c
->cmd_read
+= r
; /* we got some bytes */
1543 #define want_command(c) ((c)->fd && ((c)->state == STATE_WANTCOMMAND))
1544 #define cmd_data_ready(c) (want_command(c) && (c)->cmd_read)
1547 h_conn(const int fd
, const short which
, conn c
)
1550 twarnx("Argh! event fd doesn't match conn fd.");
1552 return conn_close(c
);
1558 event_add(&c
->evq
, NULL
); /* seems to be necessary */
1561 /* fall through... */
1563 /* fall through... */
1568 while (cmd_data_ready(c
) && (c
->cmd_len
= cmd_len(c
))) do_cmd(c
);
1579 while ((j
= delay_q_peek())) {
1580 if (j
->deadline
> t
) break;
1582 r
= enqueue_job(j
, 0);
1583 if (!r
) bury_job(j
); /* there was no room in the queue, so bury it */
1586 set_main_delay_timeout();
1590 h_accept(const int fd
, const short which
, struct event
*ev
)
1595 struct sockaddr addr
;
1597 if (which
== EV_TIMEOUT
) return h_delay();
1599 addrlen
= sizeof addr
;
1600 cfd
= accept(fd
, &addr
, &addrlen
);
1602 if (errno
!= EAGAIN
&& errno
!= EWOULDBLOCK
) twarn("accept()");
1603 if (errno
== EMFILE
) brake();
1607 flags
= fcntl(cfd
, F_GETFL
, 0);
1608 if (flags
< 0) return twarn("getting flags"), close(cfd
), v();
1610 r
= fcntl(cfd
, F_SETFL
, flags
| O_NONBLOCK
);
1611 if (r
< 0) return twarn("setting O_NONBLOCK"), close(cfd
), v();
1613 c
= make_conn(cfd
, STATE_WANTCOMMAND
, default_tube
, default_tube
);
1614 if (!c
) return twarnx("make_conn() failed"), close(cfd
), brake();
1616 dprintf("accepted conn, fd=%d\n", cfd
);
1617 r
= conn_set_evq(c
, EV_READ
| EV_PERSIST
, (evh
) h_conn
);
1618 if (r
== -1) return twarnx("conn_set_evq() failed"), close(cfd
), brake();
1624 start_time
= time(NULL
);
1625 memset(op_ct
, 0, sizeof(op_ct
));
1627 ms_init(&tubes
, NULL
, NULL
);
1629 TUBE_ASSIGN(default_tube
, tube_find_or_make("default"));
1630 if (!default_tube
) twarnx("Out of memory during startup!");
1634 prot_replay_binlog()
1636 struct job binlog_jobs
;
1640 binlog_jobs
.prev
= binlog_jobs
.next
= &binlog_jobs
;
1641 binlog_read(&binlog_jobs
);
1643 for (j
= binlog_jobs
.next
; j
!= &binlog_jobs
; j
= nj
) {
1648 case JOB_STATE_BURIED
:
1651 case JOB_STATE_DELAYED
:
1652 if (start_time
< j
->deadline
) delay
= j
->deadline
- start_time
;
1655 enqueue_job(j
,delay
);