api: add best share diff and last share time

best share diff require --show-diff

shown in the "pool" command

api.cpp

@@ -203,6 +203,9 @@ static char *getpoolnfo(char *params)
 	char nonce[128] = { 0 };
 	int pooln = params ? atoi(params) % num_pools : cur_pooln;
 	struct pool_infos *p = &pools[pooln];
+	uint32_t last_share = 0;
+	if (p->last_share_time)
+		last_share = (uint32_t) (time(NULL) - p->last_share_time);
 
 	*s = '\0';
 
@@ -215,12 +218,12 @@ static char *getpoolnfo(char *params)
 	}
 
 	snprintf(s, MYBUFSIZ, "URL=%s;USER=%s;SOLV=%d;ACC=%d;REJ=%d;H=%u;JOB=%s;DIFF=%.6f;"
-		"N2SZ=%d;N2=%s;PING=%u;DISCO=%u;WAIT=%u;UPTIME=%u|",
+		"BEST=%.6f;N2SZ=%d;N2=%s;PING=%u;DISCO=%u;WAIT=%u;UPTIME=%u;LAST=%u|",
 		p->url, p->type & POOL_STRATUM ? p->user : "",
 		p->solved_count, p->accepted_count, p->rejected_count,
-		stratum.job.height, jobid, stratum_diff,
+		stratum.job.height, jobid, stratum_diff, p->best_share,
 		(int) stratum.xnonce2_size, nonce, stratum.answer_msec,
-		p->disconnects, p->wait_time, p->work_time);
+		p->disconnects, p->wait_time, p->work_time, last_share);
 
 	return s;
 }

api/index.php

@@ -47,6 +47,8 @@ function translateField($key)
 	$intl['ACCMN'] = 'Accepted / mn';
 	$intl['REJ'] = 'Rejected';
 	$intl['SOLV'] = 'Solved';
+	$intl['BEST'] = 'Best share';
+	$intl['LAST'] = 'Last share';
 	$intl['DIFF'] = 'Difficulty';
 	$intl['NETKHS'] = 'Net Rate';
 	$intl['UPTIME'] = 'Miner up time';
@@ -54,7 +56,6 @@ function translateField($key)
 	$intl['THR'] = 'Throughput';
 	$intl['WAIT'] = 'Wait time';
 
-
 	$intl['H'] = 'Bloc height';
 	$intl['I'] = 'Intensity';
 	$intl['HWF'] = 'Failures';

ccminer.cpp

@@ -659,13 +659,16 @@ static int share_result(int result, int pooln, double sharediff, const char *rea
 	struct pool_infos *p = &pools[pooln];
 
 	pthread_mutex_lock(&stats_lock);
-
 	for (int i = 0; i < opt_n_threads; i++) {
 		hashrate += stats_get_speed(i, thr_hashrates[i]);
 	}
+	pthread_mutex_unlock(&stats_lock);
 
 	result ? p->accepted_count++ : p->rejected_count++;
-	pthread_mutex_unlock(&stats_lock);
+
+	p->last_share_time = time(NULL);
+	if (sharediff > p->best_share)
+		p->best_share = sharediff;
 
 	global_hashrate = llround(hashrate);
 

miner.h

@@ -678,6 +678,8 @@ struct pool_infos {
 	uint32_t accepted_count;
 	uint32_t rejected_count;
 	uint32_t solved_count;
+	time_t last_share_time;
+	double best_share;
 	uint32_t disconnects;
 };