C++ cgtime函数代码示例

static bool opencl_thread_prepare(struct thr_info *thr)
{
	char name[256];
	struct timeval now;
	struct cgpu_info *cgpu = thr->cgpu;
	int gpu = cgpu->device_id;
	int virtual_gpu = cgpu->virtual_gpu;
	int i = thr->id;
	static bool failmessage = false;
	int buffersize = BUFFERSIZE;

	if (!blank_res)
		blank_res = (uint32_t *)calloc(buffersize, 1);
	if (!blank_res) {
		applog(LOG_ERR, "Failed to calloc in opencl_thread_init");
		return false;
	}

	strcpy(name, "");
	applog(LOG_INFO, "Init GPU thread %i GPU %i virtual GPU %i", i, gpu, virtual_gpu);
	clStates[i] = initCl(virtual_gpu, name, sizeof(name), &cgpu->algorithm);
	if (!clStates[i]) {
#ifdef HAVE_CURSES
		if (use_curses)
			enable_curses();
#endif
		applog(LOG_ERR, "Failed to init GPU thread %d, disabling device %d", i, gpu);
		if (!failmessage) {
			applog(LOG_ERR, "Restarting the GPU from the menu will not fix this.");
			applog(LOG_ERR, "Re-check your configuration and try restarting.");
			failmessage = true;
#ifdef HAVE_CURSES
			char *buf;
			if (use_curses) {
				buf = curses_input("Press enter to continue");
				if (buf)
					free(buf);
			}
#endif
		}
		cgpu->deven = DEV_DISABLED;
		cgpu->status = LIFE_NOSTART;

		dev_error(cgpu, REASON_DEV_NOSTART);

		return false;
	}
	if (!cgpu->name)
		cgpu->name = strdup(name);
	if (!cgpu->kernelname)
		cgpu->kernelname = strdup("ckolivas");

	applog(LOG_INFO, "initCl() finished. Found %s", name);
	cgtime(&now);
	get_datestamp(cgpu->init, sizeof(cgpu->init), &now);

	have_opencl = true;
	
	return true;
}

static int64_t gridseed_scanhash(struct thr_info *thr, struct work *work, int64_t __maybe_unused max_nonce)
{
	struct cgpu_info *gridseed = thr->cgpu;
	GRIDSEED_INFO *info = gridseed->device_data;
	unsigned char buf[GRIDSEED_READ_SIZE];
	int ret = 0;
	struct timeval old_scanhash_time = info->scanhash_time;
	int elapsed_ms;

	while (!thr->work_restart && (ret = gc3355_get_data(gridseed, buf, GRIDSEED_READ_SIZE)) == 0) {
		if (buf[0] == 0x55 || buf[1] == 0x20) {
			uint32_t nonce = le32toh(*(uint32_t *)(buf+4));
			uint32_t chip = nonce / ((uint32_t)0xffffffff / info->chips);
			info->nonce_count[chip]++;
			if (!submit_nonce(thr, work, nonce))
				info->error_count[chip]++;
		} else {
			applog(LOG_ERR, "Unrecognized response from %i", gridseed->device_id);
			return -1;
		}
	}
	if (ret != 0 && ret != LIBUSB_ERROR_TIMEOUT) {
		applog(LOG_ERR, "No response from %i", gridseed->device_id);
		return -1;
	}

	cgtime(&info->scanhash_time);
	elapsed_ms = ms_tdiff(&info->scanhash_time, &old_scanhash_time);
	return GRIDSEED_HASH_SPEED * (double)elapsed_ms * (double)(info->freq * info->chips);
}

/*
 * log function
 */
void _applog(int prio, const char *str, bool force)
{
#ifdef HAVE_SYSLOG_H
	if (use_syslog) {
		syslog(prio, "%s", str);
	}
#else
	if (0) {}
#endif
	else {
		char datetime[64];
		struct timeval tv = {0, 0};
		struct tm *tm;

		cgtime(&tv);

		const time_t tmp_time = tv.tv_sec;
		tm = localtime(&tmp_time);

		/* Day changed. */
		if (opt_log_show_date && (last_date_output_day != tm->tm_mday))
		{
			last_date_output_day = tm->tm_mday;
			char date_output_str[64];
			snprintf(date_output_str, sizeof(date_output_str), "Log date is now %d-%02d-%02d",
				tm->tm_year + 1900,
				tm->tm_mon + 1,
				tm->tm_mday);
			_applog(prio, date_output_str, force);
			
		}

		if (opt_log_show_date)
		{
			snprintf(datetime, sizeof(datetime), "[%d-%02d-%02d %02d:%02d:%02d] ",
				tm->tm_year + 1900,
				tm->tm_mon + 1,
				tm->tm_mday,
				tm->tm_hour,
				tm->tm_min,
				tm->tm_sec);
		}
		else
		{
			snprintf(datetime, sizeof(datetime), "[%02d:%02d:%02d] ",
				tm->tm_hour,
				tm->tm_min,
				tm->tm_sec);
		}

		/* Only output to stderr if it's not going to the screen as well */
		if (!isatty(fileno((FILE *)stderr))) {
			fprintf(stderr, "%s%s\n", datetime, str);	/* atomic write to stderr */
			fflush(stderr);
		}

		my_log_curses(prio, datetime, str, force);
	}
}

static bool gridseed_prepare_work(struct thr_info __maybe_unused *thr, struct work *work) {
	struct cgpu_info *gridseed = thr->cgpu;
	GRIDSEED_INFO *info = gridseed->device_data;

	cgtime(&info->scanhash_time);
	gc3355_send_cmds(gridseed, str_ltc_reset);
	usb_buffer_clear(gridseed);
	return gridseed_send_task(gridseed, work);
}

static bool bitforce_thread_prepare(struct thr_info *thr)
{
	struct cgpu_info *bitforce = thr->cgpu;
	struct timeval now;

	cgtime(&now);
	get_datestamp(bitforce->init, &now);

	return true;
}

static bool bitfury_prepare(struct thr_info *thr)
{
	struct timeval now;
	struct cgpu_info *cgpu = thr->cgpu;

	cgtime(&now);
	get_datestamp(cgpu->init, &now);

	applog(LOG_INFO, "INFO bitfury_prepare");
	return true;
}

static bool spondoolies_prepare_sp30(struct thr_info *thr)
{
	struct cgpu_info *spondoolies_sp30 = thr->cgpu;
	struct timeval now;

	assert(spondoolies_sp30);
	cgtime(&now);
	/* FIXME: Vladik */
#if NEED_FIX
	get_datestamp(spondoolies_sp30->init, &now);
#endif
	return true;
}

void *miner_thread(void *userdata)
{
	struct thr_info *mythr = userdata;
	struct cgpu_info *cgpu = mythr->cgpu;
	struct device_drv *drv = cgpu->drv;

	pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);

	char threadname[20];
	snprintf(threadname, 20, "miner_%s", cgpu->proc_repr_ns);
	RenameThread(threadname);

	if (drv->thread_init && !drv->thread_init(mythr)) {
		dev_error(cgpu, REASON_THREAD_FAIL_INIT);
		for (struct cgpu_info *slave = cgpu->next_proc; slave && !slave->threads; slave = slave->next_proc)
			dev_error(slave, REASON_THREAD_FAIL_INIT);
		__thr_being_msg(LOG_ERR, mythr, "failure, exiting");
		goto out;
	}

	thread_reportout(mythr);
	applog(LOG_DEBUG, "Popping ping in miner thread");
	notifier_read(mythr->notifier);  // Wait for a notification to start

	cgtime(&cgpu->cgminer_stats.start_tv);
	if (drv->minerloop)
		drv->minerloop(mythr);
	else
		minerloop_scanhash(mythr);
	__thr_being_msg(LOG_NOTICE, mythr, "shutting down");

out: ;
	struct cgpu_info *proc = cgpu;
	do
	{
		proc->deven = DEV_DISABLED;
		proc->status = LIFE_DEAD2;
	}
	while ( (proc = proc->next_proc) && !proc->threads);
	mythr->getwork = 0;
	mythr->has_pth = false;
	cgsleep_ms(1000);
	
	if (drv->thread_shutdown)
		drv->thread_shutdown(mythr);

	notifier_destroy(mythr->notifier);

	return NULL;
}

unsigned long usec_stamp(void)
{
	static unsigned long long int first_usec = 0;
	struct timeval tv;
	unsigned long long int curr_usec;

	cgtime(&tv);
	curr_usec = tv.tv_sec * 1000000 + tv.tv_usec;
	if (first_usec == 0) {
		first_usec = curr_usec;
		curr_usec = 0;
	} else
		curr_usec -= first_usec;
	return curr_usec;
}

static bool hfa_prepare(struct thr_info *thr)
{
    struct cgpu_info *hashfast = thr->cgpu;
    struct hashfast_info *info = hashfast->device_data;
    struct timeval now;

    mutex_init(&info->lock);
    if (pthread_create(&info->read_thr, NULL, hfa_read, (void *)thr))
        quit(1, "Failed to pthread_create read thr in hfa_prepare");

    cgtime(&now);
    get_datestamp(hashfast->init, sizeof(hashfast->init), &now);

    return true;
}

/*
 * log function
 */
void _applog(int prio, const char *str, bool force)
{
#ifdef HAVE_SYSLOG_H
	if (use_syslog) {
		syslog(prio, "%s", str);
	}
#else
	if (0) {}
#endif
	else {
		char datetime[64];
		struct timeval tv = {0, 0};
		struct tm *tm;

		cgtime(&tv);

		const time_t tmp_time = tv.tv_sec;
		tm = localtime(&tmp_time);

		snprintf(datetime, sizeof(datetime), " [%d-%02d-%02d %02d:%02d:%02d] ",
			tm->tm_year + 1900,
			tm->tm_mon + 1,
			tm->tm_mday,
			tm->tm_hour,
			tm->tm_min,
			tm->tm_sec);

		/* Only output to stderr if it's not going to the screen as well */
		if (!isatty(fileno((FILE *)stderr))) {
			fprintf(stderr, "%s%s\n", datetime, str);	/* atomic write to stderr */
			fflush(stderr);
		}

		if(g_logfile_enable) {
			if(!g_log_file) {
				g_log_file = fopen(g_logfile_path, g_logfile_openflag);
			}
			if(g_log_file) {
				fwrite(datetime, strlen(datetime), 1, g_log_file);
				fwrite(str, strlen(str), 1, g_log_file);
				fwrite("\n", 1, 1, g_log_file);
				fflush(g_log_file);
			}
		}

		my_log_curses(prio, datetime, str, force);
	}
}

static bool hfa_prepare(struct thr_info *thr)
{
	struct cgpu_info *hashfast = thr->cgpu;
	struct hashfast_info *info = hashfast->device_data;
	struct timeval now;

	mutex_init(&info->lock);
	if (pthread_create(&info->read_thr, NULL, hfa_read, (void *)thr))
		quit(1, "Failed to pthread_create read thr in hfa_prepare");

	cgtime(&now);
	get_datestamp(hashfast->init, sizeof(hashfast->init), &now);
	hashfast->last_device_valid_work = time(NULL);
	info->resets = 0;
	hfa_set_fanspeed(hashfast, info, opt_hfa_fan_default);

	return true;
}

bool isdupnonce(struct cgpu_info *cgpu, struct work *work, uint32_t nonce)
{
	struct dupdata *dup = (struct dupdata *)(cgpu->dup_data);
	struct timeval now;
	bool unique = true;
	K_ITEM *item;

	if (!dup)
		return false;

	cgtime(&now);
	dup->checked++;
	K_WLOCK(dup->nfree_list);
	item = dup->nonce_list->tail;
	while (unique && item) {
		if (DATAN(item)->work_id == work->id && DATAN(item)->nonce == nonce) {
			unique = false;
			applog(LOG_WARNING, "%s%d: Duplicate nonce %08x",
					    cgpu->drv->name, cgpu->device_id, nonce);
		} else
			item = item->prev;
	}
	if (unique) {
		item = k_unlink_head(dup->nfree_list);
		DATAN(item)->work_id = work->id;
		DATAN(item)->nonce = nonce;
		memcpy(&(DATAN(item)->when), &now, sizeof(now));
		k_add_head(dup->nonce_list, item);
	}
	item = dup->nonce_list->tail;
	while (item && tdiff(&(DATAN(item)->when), &now) > dup->timelimit) {
		item = k_unlink_tail(dup->nonce_list);
		k_add_head(dup->nfree_list, item);
		item = dup->nonce_list->tail;
	}
	K_WUNLOCK(dup->nfree_list);

	if (!unique)
		dup->dup++;

	return !unique;
}

/*
 * log function
 */
void _applog(int prio, const char *str)
{
#ifdef HAVE_SYSLOG_H
	if (use_syslog) {
		syslog(prio, "%s", str);
	}
#else
	if (0) {}
#endif
	else {
		char datetime[64];
		struct timeval tv = {0, 0};
		struct tm *tm;

		cgtime(&tv);

		const time_t tmp_time = tv.tv_sec;
		tm = localtime(&tmp_time);

		sprintf(datetime, " [%d-%02d-%02d %02d:%02d:%02d] ",
			tm->tm_year + 1900,
			tm->tm_mon + 1,
			tm->tm_mday,
			tm->tm_hour,
			tm->tm_min,
			tm->tm_sec);

		/* Only output to stderr if it's not going to the screen as well */
		if (!isatty(fileno((FILE *)stderr))) {
			fprintf(stderr, "%s%s\n", datetime, str);	/* atomic write to stderr */
			fflush(stderr);
		}

		my_log_curses(prio, datetime, str);
	}
}

/* We have only one thread that ever re-initialises GPUs, thus if any GPU
 * init command fails due to a completely wedged GPU, the thread will never
 * return, unable to harm other GPUs. If it does return, it means we only had
 * a soft failure and then the reinit_gpu thread is ready to tackle another
 * GPU */
void *reinit_gpu(void *userdata)
{
	struct thr_info *mythr = userdata;
	struct cgpu_info *cgpu;
	struct thr_info *thr;
	struct timeval now;
	char name[256];
	int thr_id;
	int gpu;

	pthread_detach(pthread_self());

select_cgpu:
	cgpu = tq_pop(mythr->q, NULL);
	if (!cgpu)
		goto out;

	if (clDevicesNum() != nDevs) {
		applog(LOG_WARNING, "Hardware not reporting same number of active devices, will not attempt to restart GPU");
		goto out;
	}

	gpu = cgpu->device_id;

	for (thr_id = 0; thr_id < mining_threads; ++thr_id) {
		thr = get_thread(thr_id);
		cgpu = thr->cgpu;
		if (cgpu->drv->drv_id != DRIVER_opencl)
			continue;
		if (dev_from_id(thr_id) != gpu)
			continue;

		thr = get_thread(thr_id);
		if (!thr) {
			applog(LOG_WARNING, "No reference to thread %d exists", thr_id);
			continue;
		}

		thr->rolling = thr->cgpu->rolling = 0;
		/* Reports the last time we tried to revive a sick GPU */
		cgtime(&thr->sick);
		if (!pthread_cancel(thr->pth)) {
			applog(LOG_WARNING, "Thread %d still exists, killing it off", thr_id);
		} else
			applog(LOG_WARNING, "Thread %d no longer exists", thr_id);
	}

	for (thr_id = 0; thr_id < mining_threads; ++thr_id) {
		int virtual_gpu;

		thr = get_thread(thr_id);
		cgpu = thr->cgpu;
		if (cgpu->drv->drv_id != DRIVER_opencl)
			continue;
		if (dev_from_id(thr_id) != gpu)
			continue;

		virtual_gpu = cgpu->virtual_gpu;
		/* Lose this ram cause we may get stuck here! */
		//tq_freeze(thr->q);

		thr->q = tq_new();
		if (!thr->q)
			quit(1, "Failed to tq_new in reinit_gpu");

		/* Lose this ram cause we may dereference in the dying thread! */
		//free(clState);

		applog(LOG_INFO, "Reinit GPU thread %d", thr_id);
		clStates[thr_id] = initCl(virtual_gpu, name, sizeof(name));
		if (!clStates[thr_id]) {
			applog(LOG_ERR, "Failed to reinit GPU thread %d", thr_id);
			goto select_cgpu;
		}
		applog(LOG_INFO, "initCl() finished. Found %s", name);

		if (unlikely(thr_info_create(thr, NULL, miner_thread, thr))) {
			applog(LOG_ERR, "thread %d create failed", thr_id);
			return NULL;
		}
		applog(LOG_WARNING, "Thread %d restarted", thr_id);
	}

	cgtime(&now);
	get_datestamp(cgpu->init, sizeof(cgpu->init), &now);

	for (thr_id = 0; thr_id < mining_threads; ++thr_id) {
		thr = get_thread(thr_id);
		cgpu = thr->cgpu;
		if (cgpu->drv->drv_id != DRIVER_opencl)
			continue;
		if (dev_from_id(thr_id) != gpu)
			continue;

		cgsem_post(&thr->sem);
//.........这里部分代码省略.........