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Discard accumulated work when longpoll indicates a new block.

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This commit is contained in:
Con Kolivas 2011-06-25 21:47:16 +10:00
parent f44e8fac12
commit 295ef0f9b8
1 changed files with 11 additions and 2 deletions
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13
cpu-miner.c
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@ -612,12 +612,13 @@ static void hashmeter(int thr_id, struct timeval *diff,
total_mhashes_done / total_secs, accepted, rejected); total_mhashes_done / total_secs, accepted, rejected);
} }
static struct work *work_heap = NULL;
/* Since we always have one extra work item queued, set the thread id to 0 /* Since we always have one extra work item queued, set the thread id to 0
* for all the work and just give the work to the first thread that requests * for all the work and just give the work to the first thread that requests
* work */ * work */
static bool get_work(struct work *work) static bool get_work(struct work *work)
{ {
static struct work *work_heap = NULL;
struct thr_info *thr = &thr_info[0]; struct thr_info *thr = &thr_info[0];
struct workio_cmd *wc; struct workio_cmd *wc;
bool ret = false; bool ret = false;
@ -636,7 +637,7 @@ static bool get_work(struct work *work)
goto out; goto out;
} }
/* work_heap is a static var so it is protected by get_lock */ /* work_heap is protected by get_lock */
pthread_mutex_lock(&get_lock); pthread_mutex_lock(&get_lock);
if (likely(work_heap)) { if (likely(work_heap)) {
memcpy(work, work_heap, sizeof(*work)); memcpy(work, work_heap, sizeof(*work));
@ -1004,6 +1005,14 @@ static void restart_threads(void)
for (i = 0; i < opt_n_threads + nDevs; i++) for (i = 0; i < opt_n_threads + nDevs; i++)
work_restart[i].restart = 1; work_restart[i].restart = 1;
/* If longpoll has detected a new block, we should discard any queued
* blocks in work_heap */
pthread_mutex_lock(&get_lock);
if (likely(work_heap)) {
free(work_heap);
work_heap = NULL;
}
pthread_mutex_unlock(&get_lock);
} }
static void *longpoll_thread(void *userdata) static void *longpoll_thread(void *userdata)