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Clean up the messy way the staging thread communicates with the longpoll thread to determine who found the block first.

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This commit is contained in:
Con Kolivas 2011-07-22 15:00:57 +10:00
parent 0106c56797
commit 0909facfaf
1 changed files with 28 additions and 23 deletions
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51
main.c
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@ -198,6 +198,15 @@ static int total_accepted, total_rejected;
static int total_getworks, total_stale, total_discarded;
static int total_queued, total_staged, lp_staged;
static unsigned int new_blocks;
enum block_change {
BLOCK_NONE,
BLOCK_LP,
BLOCK_DETECT,
BLOCK_FIRST,
};
static enum block_change block_changed = BLOCK_FIRST;
static unsigned int local_work;
static unsigned int total_lo, total_ro;
@ -213,8 +222,6 @@ static int total_urls, total_users, total_passes, total_userpasses;
static bool curses_active = false;
static char current_block[37];
static char longpoll_block[37];
static char blank[37];
static char datestamp[40];
static char blockdate[40];
@ -1112,9 +1119,6 @@ static bool stale_work(struct work *work)
if (work->pool != current_pool())
return ret;
if (!strncmp(blank, current_block, 36))
return ret;
hexstr = bin2hex(work->data, 36);
if (unlikely(!hexstr)) {
applog(LOG_ERR, "submit_work_thread OOM");
@ -1336,8 +1340,9 @@ static void test_work_current(struct work *work)
}
/* current_block is blanked out on successful longpoll */
if (likely(strncmp(current_block, blank, 36))) {
if (unlikely(strncmp(hexstr, current_block, 36))) {
if (unlikely(strncmp(hexstr, current_block, 36))) {
if (block_changed != BLOCK_LP && block_changed != BLOCK_FIRST) {
block_changed = BLOCK_DETECT;
new_blocks++;
if (have_longpoll)
applog(LOG_WARNING, "New block detected on network before longpoll, waiting on fresh work");
@ -1346,12 +1351,11 @@ static void test_work_current(struct work *work)
/* As we can't flush the work from here, signal the
* wakeup thread to restart all the threads */
work_restart[watchdog_thr_id].restart = 1;
set_curblock(hexstr);
}
} else {
} else
block_changed = BLOCK_NONE;
set_curblock(hexstr);
memcpy(longpoll_block, hexstr, 36);
}
free(hexstr);
}
@ -2448,6 +2452,9 @@ static void restart_threads(void)
{
int i;
if (block_changed == BLOCK_DETECT)
block_changed = BLOCK_NONE;
/* Discard old queued requests and get new ones */
flush_requests();
@ -2537,14 +2544,15 @@ next_path:
if (likely(val)) {
/* Keep track of who ordered a restart_threads to make
* sure it's only done once per new block */
if (likely(!strncmp(longpoll_block, blank, 36) ||
!strncmp(longpoll_block, current_block, 36))) {
new_blocks++;
applog(LOG_WARNING, "LONGPOLL detected new block on network, waiting on fresh work");
memcpy(current_block, blank, 36);
restart_threads();
} else
if (block_changed != BLOCK_DETECT) {
block_changed = BLOCK_LP;
new_blocks++;
applog(LOG_WARNING, "LONGPOLL detected new block on network, waiting on fresh work");
restart_threads();
} else {
applog(LOG_WARNING, "LONGPOLL received after new block already detected");
block_changed = BLOCK_NONE;
}
convert_to_work(val);
failures = 0;
@ -2567,7 +2575,7 @@ next_path:
goto out;
}
}
memcpy(longpoll_block, current_block, 36);
if (pool != current_pool()) {
applog(LOG_WARNING, "Attempting to change longpoll servers");
pool = current_pool();
@ -2969,11 +2977,8 @@ int main (int argc, char *argv[])
tm.tm_min,
tm.tm_sec);
for (i = 0; i < 36; i++) {
strcat(blank, "0");
for (i = 0; i < 36; i++)
strcat(current_block, "0");
strcat(longpoll_block, "0");
}
#ifdef WIN32
opt_n_threads = num_processors = 1;