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Implement the actual switch logic which changes over after 5 minutes of local work generation.

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This commit is contained in:
Con Kolivas 2011-07-19 13:30:29 +10:00
parent 81ff7fb3dc
commit f91a048ae7
1 changed files with 21 additions and 5 deletions
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26
main.c
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@ -182,6 +182,7 @@ static unsigned int total_lo, total_ro;
static struct pool *pools = NULL;
static struct pool *currentpool;
static int pool_no;
static int total_pools;
static bool curses_active = false;
@ -260,10 +261,15 @@ static struct pool *current_pool(void)
return pool;
}
static void set_current_pool(struct pool *pool)
static void switch_pools(void)
{
pthread_mutex_lock(&control_lock);
currentpool = pool;
pool_no++;
if (pool_no >= total_pools)
pool_no = 0;
currentpool = &pools[pool_no];
gettimeofday(&currentpool->tv_localgen, NULL);
applog(LOG_WARNING, "Prolonged outage. Attempting to switch to %s", currentpool->rpc_url);
pthread_mutex_unlock(&control_lock);
}
@ -689,6 +695,7 @@ static void curses_print_status(int thr_id)
wclrtoeol(statuswin);
wmove(statuswin, 4, 0);
wprintw(statuswin, " Connected to %s as user %s", pool->rpc_url, pool->rpc_user);
wclrtoeol(statuswin);
wmove(statuswin, 5, 0);
wprintw(statuswin, " Block %s started: %s", current_block + 4, blockdate);
wmove(statuswin, 6, 0);
@ -1406,12 +1413,13 @@ static void flush_requests(bool longpoll)
static bool get_work(struct work *work, bool queued)
{
struct pool *pool = current_pool();
struct work *work_heap;
struct pool *pool;
bool ret = false;
int failures = 0;
retry:
pool = current_pool();
if (unlikely(!queued && !queue_request())) {
applog(LOG_WARNING, "Failed to queue_request in get_work");
goto out;
@ -1432,7 +1440,14 @@ retry:
gettimeofday(&tv_now, NULL);
timeval_subtract(&diff, &tv_now, &pool->tv_localgen);
if (diff.tv_sec > 600) {
if (total_pools > 1) {
/* Attempt to switch pools if this one has been unresponsive for >half
* a block's duration */
if (diff.tv_sec > 300) {
switch_pools();
goto retry;
}
} else if (diff.tv_sec > 600) {
/* A new block appears on average every 10 mins */
applog(LOG_WARNING, "Prolonged outage. Going idle till network recovers.");
/* Force every thread to wait for new work */
@ -2427,7 +2442,8 @@ int main (int argc, char *argv[])
}
}
}
set_current_pool(pools);
/* Set the current pool to pool 0 */
currentpool = pools;
#ifdef HAVE_SYSLOG_H
if (use_syslog)