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sched: Use the sched_heap_idx field to double-check our fix for 24700.

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Signed-off-by: David Goulet <dgoulet@torproject.org>
This commit is contained in:
Nick Mathewson 2018-02-01 11:05:50 -05:00 committed by David Goulet
parent adaf3e9b89
commit cb5654f300
3 changed files with 25 additions and 11 deletions
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3
src/or/channel.c
View File

@ -951,6 +951,9 @@ channel_init(channel_t *chan)
/* Scheduler state is idle */
chan->scheduler_state = SCHED_CHAN_IDLE;
/* Channel is not in the scheduler heap. */
chan->sched_heap_idx = -1;
}
/**

20
src/or/scheduler.c
View File

@ -538,10 +538,12 @@ scheduler_channel_has_waiting_cells,(channel_t *chan))
* channels_pending.
*/
chan->scheduler_state = SCHED_CHAN_PENDING;
smartlist_pqueue_add(channels_pending,
scheduler_compare_channels,
offsetof(channel_t, sched_heap_idx),
chan);
if (!SCHED_BUG(chan->sched_heap_idx != -1, chan)) {
smartlist_pqueue_add(channels_pending,
scheduler_compare_channels,
offsetof(channel_t, sched_heap_idx),
chan);
}
log_debug(LD_SCHED,
"Channel " U64_FORMAT " at %p went from waiting_for_cells "
"to pending",
@ -665,10 +667,12 @@ scheduler_channel_wants_writes(channel_t *chan)
*/
log_debug(LD_SCHED, "chan=%" PRIu64 " became pending",
chan->global_identifier);
smartlist_pqueue_add(channels_pending,
scheduler_compare_channels,
offsetof(channel_t, sched_heap_idx),
chan);
if (!SCHED_BUG(chan->sched_heap_idx != -1, chan)) {
smartlist_pqueue_add(channels_pending,
scheduler_compare_channels,
offsetof(channel_t, sched_heap_idx),
chan);
}
chan->scheduler_state = SCHED_CHAN_PENDING;
log_debug(LD_SCHED,
"Channel " U64_FORMAT " at %p went from waiting_to_write "

13
src/or/scheduler_kist.c
View File

@ -704,8 +704,10 @@ kist_scheduler_run(void)
/* Case 4: cells to send, and still open for writes */
chan->scheduler_state = SCHED_CHAN_PENDING;
smartlist_pqueue_add(cp, scheduler_compare_channels,
offsetof(channel_t, sched_heap_idx), chan);
if (!SCHED_BUG(chan->sched_heap_idx != -1, chan)) {
smartlist_pqueue_add(cp, scheduler_compare_channels,
offsetof(channel_t, sched_heap_idx), chan);
}
}
} /* End of main scheduling loop */
@ -725,8 +727,13 @@ kist_scheduler_run(void)
SMARTLIST_FOREACH_BEGIN(to_readd, channel_t *, readd_chan) {
readd_chan->scheduler_state = SCHED_CHAN_PENDING;
if (!smartlist_contains(cp, readd_chan)) {
smartlist_pqueue_add(cp, scheduler_compare_channels,
if (!SCHED_BUG(chan->sched_heap_idx != -1, chan)) {
/* XXXX Note that the check above is in theory redundant with
* the smartlist_contains check. But let's make sure we're
* not messing anything up, and leave them both for now. */
smartlist_pqueue_add(cp, scheduler_compare_channels,
offsetof(channel_t, sched_heap_idx), readd_chan);
}
}
} SMARTLIST_FOREACH_END(readd_chan);
smartlist_free(to_readd);