[fio.git] / client.c

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <limits.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/poll.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/mman.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>

#include "fio.h"
#include "server.h"
#include "crc/crc32.h"
#include "flist.h"

struct fio_client {
	struct flist_head list;
	struct sockaddr_in addr;
	char *hostname;
	int fd;
};

static FLIST_HEAD(client_list);

static int handle_client(struct fio_client *client, int one);

static struct fio_client *find_client_by_fd(int fd)
{
	struct fio_client *client;
	struct flist_head *entry;

	flist_for_each(entry, &client_list) {
		client = flist_entry(entry, struct fio_client, list);

		if (client->fd == fd)
			return client;
	}

	return NULL;
}

#if 0
static struct fio_client *find_client_by_name(const char *name)
{
	struct fio_client *client;
	struct flist_head *entry;

	flist_for_each(entry, &client_list) {
		client = flist_entry(entry, struct fio_client, list);

		if (!strcmp(name, client->hostname))
			return client;
	}

	return NULL;
}
#endif

static void remove_client(struct fio_client *client)
{
	dprint(FD_NET, "removed client <%s>\n", client->hostname);
	flist_del(&client->list);
	nr_clients--;
	free(client->hostname);
	free(client);
}

void fio_client_add(const char *hostname)
{
	struct fio_client *client;

	dprint(FD_NET, "added client <%s>\n", hostname);
	client = malloc(sizeof(*client));
	memset(client, 0, sizeof(*client));
	client->hostname = strdup(hostname);
	client->fd = -1;
	flist_add(&client->list, &client_list);
	nr_clients++;
}

static int fio_client_connect(struct fio_client *client)
{
	int fd;

	dprint(FD_NET, "connect to host %s\n", client->hostname);

	memset(&client->addr, 0, sizeof(client->addr));
	client->addr.sin_family = AF_INET;
	client->addr.sin_port = htons(fio_net_port);

	if (inet_aton(client->hostname, &client->addr.sin_addr) != 1) {
		struct hostent *hent;

		hent = gethostbyname(client->hostname);
		if (!hent) {
			log_err("fio: gethostbyname: %s\n", strerror(errno));
			return 1;
		}

		memcpy(&client->addr.sin_addr, hent->h_addr, 4);
	}

	fd = socket(AF_INET, SOCK_STREAM, 0);
	if (fd < 0) {
		log_err("fio: socket: %s\n", strerror(errno));
		return 1;
	}

	if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) {
		log_err("fio: connect: %s\n", strerror(errno));
		log_err("fio: failed to connect to %s\n", client->hostname);
		return 1;
	}

	client->fd = fd;
	return 0;
}

void fio_clients_terminate(void)
{
	struct flist_head *entry;
	struct fio_client *client;

	flist_for_each(entry, &client_list) {
		client = flist_entry(entry, struct fio_client, list);

		fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0);
	}
}

static void sig_int(int sig)
{
	fio_clients_terminate();
}

static void client_signal_handler(void)
{
	struct sigaction act;

	memset(&act, 0, sizeof(act));
	act.sa_handler = sig_int;
	act.sa_flags = SA_RESTART;
	sigaction(SIGINT, &act, NULL);

	memset(&act, 0, sizeof(act));
	act.sa_handler = sig_int;
	act.sa_flags = SA_RESTART;
	sigaction(SIGTERM, &act, NULL);
}

static void probe_client(struct fio_client *client)
{
	fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0);
	handle_client(client, 1);
}

int fio_clients_connect(void)
{
	struct fio_client *client;
	struct flist_head *entry, *tmp;
	int ret;

	client_signal_handler();

	flist_for_each_safe(entry, tmp, &client_list) {
		client = flist_entry(entry, struct fio_client, list);

		ret = fio_client_connect(client);
		if (ret) {
			remove_client(client);
			continue;
		}

		probe_client(client);
	}

	return !nr_clients;
}

static int send_file_buf(struct fio_client *client, char *buf, off_t size)
{
	return fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, size);
}

/*
 * Send file contents to server backend. We could use sendfile(), but to remain
 * more portable lets just read/write the darn thing.
 */
static int fio_client_send_ini(struct fio_client *client, const char *filename)
{
	struct stat sb;
	char *p, *buf;
	off_t len;
	int fd, ret;

	dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);

	fd = open(filename, O_RDONLY);
	if (fd < 0) {
		log_err("fio: job file open: %s\n", strerror(errno));
		return 1;
	}

	if (fstat(fd, &sb) < 0) {
		log_err("fio: job file stat: %s\n", strerror(errno));
		return 1;
	}

	buf = malloc(sb.st_size);

	len = sb.st_size;
	p = buf;
	do {
		ret = read(fd, p, len);
		if (ret > 0) {
			len -= ret;
			if (!len)
				break;
			p += ret;
			continue;
		} else if (!ret)
			break;
		else if (errno == EAGAIN || errno == EINTR)
			continue;
	} while (1);

	if (len) {
		log_err("fio: failed reading job file %s\n", filename);
		return 1;
	}

	ret = send_file_buf(client, buf, sb.st_size);
	free(buf);
	return ret;
}

int fio_clients_send_ini(const char *filename)
{
	struct fio_client *client;
	struct flist_head *entry, *tmp;

	flist_for_each_safe(entry, tmp, &client_list) {
		client = flist_entry(entry, struct fio_client, list);

		if (fio_client_send_ini(client, filename))
			remove_client(client);
	}

	return !nr_clients;
}

static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
{
	dst->max_val	= le64_to_cpu(src->max_val);
	dst->min_val	= le64_to_cpu(src->min_val);
	dst->samples	= le64_to_cpu(src->samples);
	/* FIXME */
	dst->mean	= __le64_to_cpu(src->mean);
	dst->S		= __le64_to_cpu(src->S);
}

static void convert_ts(struct thread_stat *dst, struct thread_stat *src)
{
	int i, j;

	dst->error	= le32_to_cpu(src->error);
	dst->groupid	= le32_to_cpu(src->groupid);
	dst->pid	= le32_to_cpu(src->pid);
	dst->members	= le32_to_cpu(src->members);

	for (i = 0; i < 2; i++) {
		convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
		convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
		convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
		convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
	}

	dst->usr_time		= le64_to_cpu(src->usr_time);
	dst->sys_time		= le64_to_cpu(src->sys_time);
	dst->ctx		= le64_to_cpu(src->ctx);
	dst->minf		= le64_to_cpu(src->minf);
	dst->majf		= le64_to_cpu(src->majf);
	dst->clat_percentiles	= le64_to_cpu(src->clat_percentiles);
	dst->percentile_list	= NULL;

	for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
		dst->io_u_map[i]	= le32_to_cpu(src->io_u_map[i]);
		dst->io_u_submit[i]	= le32_to_cpu(src->io_u_submit[i]);
		dst->io_u_complete[i]	= le32_to_cpu(src->io_u_complete[i]);
	}

	for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
		dst->io_u_lat_u[i]	= le32_to_cpu(src->io_u_lat_u[i]);
		dst->io_u_lat_m[i]	= le32_to_cpu(src->io_u_lat_m[i]);
	}

	for (i = 0; i < 2; i++)
		for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
			dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);

	for (i = 0; i < 3; i++) {
		dst->total_io_u[i]	= le64_to_cpu(src->total_io_u[i]);
		dst->short_io_u[i]	= le64_to_cpu(src->short_io_u[i]);
	}

	dst->total_submit	= le64_to_cpu(src->total_submit);
	dst->total_complete	= le64_to_cpu(src->total_complete);

	for (i = 0; i < 2; i++) {
		dst->io_bytes[i]	= le64_to_cpu(src->io_bytes[i]);
		dst->runtime[i]		= le64_to_cpu(src->runtime[i]);
	}

	dst->total_run_time	= le64_to_cpu(src->total_run_time);
	dst->continue_on_error	= le16_to_cpu(src->continue_on_error);
	dst->total_err_count	= le64_to_cpu(src->total_err_count);
	dst->first_error	= le32_to_cpu(src->first_error);
	dst->kb_base		= le32_to_cpu(src->kb_base);
}

static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
{
	int i;

	for (i = 0; i < 2; i++) {
		dst->max_run[i]		= le64_to_cpu(src->max_run[i]);
		dst->min_run[i]		= le64_to_cpu(src->min_run[i]);
		dst->max_bw[i]		= le64_to_cpu(src->max_bw[i]);
		dst->min_bw[i]		= le64_to_cpu(src->min_bw[i]);
		dst->io_kb[i]		= le64_to_cpu(src->io_kb[i]);
		dst->agg[i]		= le64_to_cpu(src->agg[i]);
	}

	dst->kb_base	= le32_to_cpu(src->kb_base);
	dst->groupid	= le32_to_cpu(src->groupid);
}

static void handle_ts(struct fio_net_cmd *cmd)
{
	struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;

	convert_ts(&p->ts, &p->ts);
	convert_gs(&p->rs, &p->rs);

	show_thread_status(&p->ts, &p->rs);
}

static void handle_gs(struct fio_net_cmd *cmd)
{
	struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;

	convert_gs(gs, gs);
	show_group_stats(gs);
}

static void handle_eta(struct fio_net_cmd *cmd)
{
	struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
	int i;

	je->nr_running		= le32_to_cpu(je->nr_running);
	je->nr_ramp		= le32_to_cpu(je->nr_ramp);
	je->nr_pending		= le32_to_cpu(je->nr_pending);
	je->files_open		= le32_to_cpu(je->files_open);
	je->m_rate		= le32_to_cpu(je->m_rate);
	je->t_rate		= le32_to_cpu(je->t_rate);
	je->m_iops		= le32_to_cpu(je->m_iops);
	je->t_iops		= le32_to_cpu(je->t_iops);

	for (i = 0; i < 2; i++) {
		je->rate[i]	= le32_to_cpu(je->rate[i]);
		je->iops[i]	= le32_to_cpu(je->iops[i]);
	}

	je->elapsed_sec		= le32_to_cpu(je->nr_running);
	je->eta_sec		= le64_to_cpu(je->eta_sec);

	display_thread_status(je);
}

static void handle_probe(struct fio_net_cmd *cmd)
{
	struct cmd_probe_pdu *probe = (struct cmd_probe_pdu *) cmd->payload;

	log_info("Probe: hostname=%s, fio ver %u.%u.%u\n", probe->hostname,
			probe->fio_major, probe->fio_minor, probe->fio_patch);
}

static int handle_client(struct fio_client *client, int one)
{
	struct fio_net_cmd *cmd;
	int done = 0;

	while ((cmd = fio_net_recv_cmd(client->fd, 1)) != NULL) {
		dprint(FD_NET, "%s: got cmd op %d\n", client->hostname,
							cmd->opcode);

		switch (cmd->opcode) {
		case FIO_NET_CMD_QUIT:
			remove_client(client);
			free(cmd);
			done = 1;
			break;
		case FIO_NET_CMD_TEXT:
			fprintf(f_out, "Client <%s>: ", client->hostname);
			fwrite(cmd->payload, cmd->pdu_len, 1, f_out);
			fflush(f_out);
			free(cmd);
			break;
		case FIO_NET_CMD_TS:
			handle_ts(cmd);
			free(cmd);
			break;
		case FIO_NET_CMD_GS:
			handle_gs(cmd);
			free(cmd);
			break;
		case FIO_NET_CMD_ETA:
			handle_eta(cmd);
			free(cmd);
			break;
		case FIO_NET_CMD_PROBE:
			handle_probe(cmd);
			free(cmd);
			break;
		default:
			log_err("fio: unknown client op: %d\n", cmd->opcode);
			free(cmd);
			break;
		}

		if (done || one)
			break;
	}

	return 0;
}

int fio_handle_clients(void)
{
	struct fio_client *client;
	struct flist_head *entry;
	struct pollfd *pfds;
	int i, ret = 0;

	pfds = malloc(nr_clients * sizeof(struct pollfd));

	while (!exit_backend && nr_clients) {
		i = 0;
		flist_for_each(entry, &client_list) {
			client = flist_entry(entry, struct fio_client, list);

			pfds[i].fd = client->fd;
			pfds[i].events = POLLIN;
			i++;
		}

		assert(i == nr_clients);

		ret = poll(pfds, nr_clients, 100);
		if (ret < 0) {
			if (errno == EINTR)
				continue;
			log_err("fio: poll clients: %s\n", strerror(errno));
			break;
		} else if (!ret)
			continue;

		for (i = 0; i < nr_clients; i++) {
			if (!(pfds[i].revents & POLLIN))
				continue;

			client = find_client_by_fd(pfds[i].fd);
			if (!client) {
				log_err("fio: unknown client\n");
				continue;
			}
			handle_client(client, 0);
		}
	}

	free(pfds);
	return 0;
}
Commit	Line	Data
132159a5 JA	1	#include <stdio.h>
	2	#include <stdlib.h>
	3	#include <unistd.h>
	4	#include <limits.h>
	5	#include <errno.h>
	6	#include <fcntl.h>
	7	#include <sys/poll.h>
	8	#include <sys/types.h>
	9	#include <sys/stat.h>
	10	#include <sys/wait.h>
	11	#include <sys/mman.h>
	12	#include <netinet/in.h>
	13	#include <arpa/inet.h>
	14	#include <netdb.h>
	15
	16	#include "fio.h"
	17	#include "server.h"
	18	#include "crc/crc32.h"
b66570dc	19	#include "flist.h"
132159a5	20
b66570dc JA	21	struct fio_client {
	22	struct flist_head list;
	23	struct sockaddr_in addr;
	24	char *hostname;
	25	int fd;
	26	};
	27
	28	static FLIST_HEAD(client_list);
b66570dc	29
0b8f30a5 JA	30	static int handle_client(struct fio_client *client, int one);
0b8f30a5 JA	31
b66570dc JA	32	static struct fio_client *find_client_by_fd(int fd)
	33	{
	34	struct fio_client *client;
	35	struct flist_head *entry;
	36
	37	flist_for_each(entry, &client_list) {
	38	client = flist_entry(entry, struct fio_client, list);
	39
	40	if (client->fd == fd)
	41	return client;
	42	}
	43
	44	return NULL;
	45	}
	46
a37f69b7	47	#if 0
b66570dc JA	48	static struct fio_client find_client_by_name(const char name)
	49	{
	50	struct fio_client *client;
	51	struct flist_head *entry;
	52
	53	flist_for_each(entry, &client_list) {
	54	client = flist_entry(entry, struct fio_client, list);
	55
	56	if (!strcmp(name, client->hostname))
	57	return client;
	58	}
	59
	60	return NULL;
	61	}
a37f69b7	62	#endif
b66570dc JA	63
	64	static void remove_client(struct fio_client *client)
	65	{
46c48f1f	66	dprint(FD_NET, "removed client <%s>\n", client->hostname);
b66570dc JA	67	flist_del(&client->list);
	68	nr_clients--;
	69	free(client->hostname);
	70	free(client);
	71	}
132159a5	72
a37f69b7	73	void fio_client_add(const char *hostname)
132159a5	74	{
b66570dc	75	struct fio_client *client;
132159a5	76
46c48f1f	77	dprint(FD_NET, "added client <%s>\n", hostname);
b66570dc	78	client = malloc(sizeof(*client));
a37f69b7 JA	79	memset(client, 0, sizeof(*client));
	80	client->hostname = strdup(hostname);
	81	client->fd = -1;
	82	flist_add(&client->list, &client_list);
	83	nr_clients++;
	84	}
	85
	86	static int fio_client_connect(struct fio_client *client)
	87	{
	88	int fd;
132159a5	89
46c48f1f JA	90	dprint(FD_NET, "connect to host %s\n", client->hostname);
46c48f1f JA	91
b66570dc JA	92	memset(&client->addr, 0, sizeof(client->addr));
	93	client->addr.sin_family = AF_INET;
	94	client->addr.sin_port = htons(fio_net_port);
	95
a37f69b7	96	if (inet_aton(client->hostname, &client->addr.sin_addr) != 1) {
132159a5 JA	97	struct hostent *hent;
132159a5 JA	98
a37f69b7	99	hent = gethostbyname(client->hostname);
132159a5 JA	100	if (!hent) {
	101	log_err("fio: gethostbyname: %s\n", strerror(errno));
	102	return 1;
	103	}
	104
b66570dc	105	memcpy(&client->addr.sin_addr, hent->h_addr, 4);
132159a5 JA	106	}
	107
	108	fd = socket(AF_INET, SOCK_STREAM, 0);
	109	if (fd < 0) {
	110	log_err("fio: socket: %s\n", strerror(errno));
	111	return 1;
	112	}
	113
b66570dc	114	if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) {
132159a5	115	log_err("fio: connect: %s\n", strerror(errno));
cdf54d85	116	log_err("fio: failed to connect to %s\n", client->hostname);
132159a5 JA	117	return 1;
	118	}
	119
b66570dc	120	client->fd = fd;
132159a5 JA	121	return 0;
	122	}
	123
cc0df00a JA	124	void fio_clients_terminate(void)
	125	{
	126	struct flist_head *entry;
	127	struct fio_client *client;
	128
	129	flist_for_each(entry, &client_list) {
	130	client = flist_entry(entry, struct fio_client, list);
	131
	132	fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0);
	133	}
	134	}
	135
	136	static void sig_int(int sig)
	137	{
	138	fio_clients_terminate();
	139	}
	140
	141	static void client_signal_handler(void)
	142	{
	143	struct sigaction act;
	144
	145	memset(&act, 0, sizeof(act));
	146	act.sa_handler = sig_int;
	147	act.sa_flags = SA_RESTART;
	148	sigaction(SIGINT, &act, NULL);
	149
	150	memset(&act, 0, sizeof(act));
	151	act.sa_handler = sig_int;
	152	act.sa_flags = SA_RESTART;
	153	sigaction(SIGTERM, &act, NULL);
	154	}
	155
0b8f30a5 JA	156	static void probe_client(struct fio_client *client)
	157	{
	158	fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0);
	159	handle_client(client, 1);
	160	}
	161
a37f69b7 JA	162	int fio_clients_connect(void)
	163	{
	164	struct fio_client *client;
	165	struct flist_head entry, tmp;
	166	int ret;
	167
cc0df00a JA	168	client_signal_handler();
cc0df00a JA	169
a37f69b7 JA	170	flist_for_each_safe(entry, tmp, &client_list) {
	171	client = flist_entry(entry, struct fio_client, list);
	172
	173	ret = fio_client_connect(client);
0b8f30a5	174	if (ret) {
a37f69b7	175	remove_client(client);
0b8f30a5 JA	176	continue;
	177	}
	178
	179	probe_client(client);
a37f69b7 JA	180	}
	181
	182	return !nr_clients;
	183	}
	184
b66570dc	185	static int send_file_buf(struct fio_client client, char buf, off_t size)
132159a5	186	{
b66570dc	187	return fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, size);
132159a5 JA	188	}
	189
	190	/*
	191	* Send file contents to server backend. We could use sendfile(), but to remain
	192	* more portable lets just read/write the darn thing.
	193	*/
a37f69b7	194	static int fio_client_send_ini(struct fio_client client, const char filename)
132159a5 JA	195	{
	196	struct stat sb;
	197	char p, buf;
	198	off_t len;
	199	int fd, ret;
	200
46c48f1f JA	201	dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
46c48f1f JA	202
132159a5 JA	203	fd = open(filename, O_RDONLY);
	204	if (fd < 0) {
	205	log_err("fio: job file open: %s\n", strerror(errno));
	206	return 1;
	207	}
	208
	209	if (fstat(fd, &sb) < 0) {
	210	log_err("fio: job file stat: %s\n", strerror(errno));
	211	return 1;
	212	}
	213
	214	buf = malloc(sb.st_size);
	215
	216	len = sb.st_size;
	217	p = buf;
	218	do {
	219	ret = read(fd, p, len);
	220	if (ret > 0) {
	221	len -= ret;
	222	if (!len)
	223	break;
	224	p += ret;
	225	continue;
	226	} else if (!ret)
	227	break;
	228	else if (errno == EAGAIN \|\| errno == EINTR)
	229	continue;
	230	} while (1);
	231
0b8f30a5 JA	232	if (len) {
	233	log_err("fio: failed reading job file %s\n", filename);
	234	return 1;
	235	}
	236
b66570dc	237	ret = send_file_buf(client, buf, sb.st_size);
132159a5 JA	238	free(buf);
	239	return ret;
	240	}
37db14fe	241
a37f69b7 JA	242	int fio_clients_send_ini(const char *filename)
	243	{
	244	struct fio_client *client;
	245	struct flist_head entry, tmp;
	246
	247	flist_for_each_safe(entry, tmp, &client_list) {
	248	client = flist_entry(entry, struct fio_client, list);
	249
	250	if (fio_client_send_ini(client, filename))
	251	remove_client(client);
	252	}
	253
	254	return !nr_clients;
	255	}
	256
a64e88da JA	257	static void convert_io_stat(struct io_stat dst, struct io_stat src)
	258	{
	259	dst->max_val = le64_to_cpu(src->max_val);
	260	dst->min_val = le64_to_cpu(src->min_val);
	261	dst->samples = le64_to_cpu(src->samples);
	262	/* FIXME */
ddcc0b69 JA	263	dst->mean = __le64_to_cpu(src->mean);
ddcc0b69 JA	264	dst->S = __le64_to_cpu(src->S);
a64e88da JA	265	}
	266
	267	static void convert_ts(struct thread_stat dst, struct thread_stat src)
	268	{
	269	int i, j;
	270
	271	dst->error = le32_to_cpu(src->error);
	272	dst->groupid = le32_to_cpu(src->groupid);
	273	dst->pid = le32_to_cpu(src->pid);
	274	dst->members = le32_to_cpu(src->members);
	275
	276	for (i = 0; i < 2; i++) {
	277	convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
	278	convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
	279	convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
	280	convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
	281	}
	282
	283	dst->usr_time = le64_to_cpu(src->usr_time);
	284	dst->sys_time = le64_to_cpu(src->sys_time);
	285	dst->ctx = le64_to_cpu(src->ctx);
	286	dst->minf = le64_to_cpu(src->minf);
	287	dst->majf = le64_to_cpu(src->majf);
	288	dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
	289	dst->percentile_list = NULL;
	290
	291	for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
	292	dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
	293	dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
	294	dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
	295	}
	296
	297	for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
	298	dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
	299	dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
	300	}
	301
	302	for (i = 0; i < 2; i++)
	303	for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
	304	dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
	305
	306	for (i = 0; i < 3; i++) {
	307	dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
93eee04a	308	dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
a64e88da JA	309	}
	310
	311	dst->total_submit = le64_to_cpu(src->total_submit);
	312	dst->total_complete = le64_to_cpu(src->total_complete);
	313
	314	for (i = 0; i < 2; i++) {
	315	dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
	316	dst->runtime[i] = le64_to_cpu(src->runtime[i]);
	317	}
	318
	319	dst->total_run_time = le64_to_cpu(src->total_run_time);
	320	dst->continue_on_error = le16_to_cpu(src->continue_on_error);
	321	dst->total_err_count = le64_to_cpu(src->total_err_count);
ddcc0b69 JA	322	dst->first_error = le32_to_cpu(src->first_error);
ddcc0b69 JA	323	dst->kb_base = le32_to_cpu(src->kb_base);
a64e88da JA	324	}
	325
	326	static void convert_gs(struct group_run_stats dst, struct group_run_stats src)
	327	{
	328	int i;
	329
	330	for (i = 0; i < 2; i++) {
	331	dst->max_run[i] = le64_to_cpu(src->max_run[i]);
	332	dst->min_run[i] = le64_to_cpu(src->min_run[i]);
	333	dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
	334	dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
	335	dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
	336	dst->agg[i] = le64_to_cpu(src->agg[i]);
	337	}
	338
	339	dst->kb_base = le32_to_cpu(src->kb_base);
	340	dst->groupid = le32_to_cpu(src->groupid);
	341	}
	342
	343	static void handle_ts(struct fio_net_cmd *cmd)
	344	{
	345	struct cmd_ts_pdu p = (struct cmd_ts_pdu ) cmd->payload;
	346
	347	convert_ts(&p->ts, &p->ts);
	348	convert_gs(&p->rs, &p->rs);
	349
	350	show_thread_status(&p->ts, &p->rs);
	351	}
	352
	353	static void handle_gs(struct fio_net_cmd *cmd)
	354	{
	355	struct group_run_stats gs = (struct group_run_stats ) cmd->payload;
	356
	357	convert_gs(gs, gs);
	358	show_group_stats(gs);
	359	}
	360
cf451d1e JA	361	static void handle_eta(struct fio_net_cmd *cmd)
	362	{
	363	struct jobs_eta je = (struct jobs_eta ) cmd->payload;
	364	int i;
	365
	366	je->nr_running = le32_to_cpu(je->nr_running);
	367	je->nr_ramp = le32_to_cpu(je->nr_ramp);
	368	je->nr_pending = le32_to_cpu(je->nr_pending);
	369	je->files_open = le32_to_cpu(je->files_open);
	370	je->m_rate = le32_to_cpu(je->m_rate);
	371	je->t_rate = le32_to_cpu(je->t_rate);
	372	je->m_iops = le32_to_cpu(je->m_iops);
	373	je->t_iops = le32_to_cpu(je->t_iops);
	374
	375	for (i = 0; i < 2; i++) {
	376	je->rate[i] = le32_to_cpu(je->rate[i]);
	377	je->iops[i] = le32_to_cpu(je->iops[i]);
	378	}
	379
	380	je->elapsed_sec = le32_to_cpu(je->nr_running);
	381	je->eta_sec = le64_to_cpu(je->eta_sec);
	382
	383	display_thread_status(je);
	384	}
	385
2e03b4b2 JA	386	static void handle_probe(struct fio_net_cmd *cmd)
	387	{
	388	struct cmd_probe_pdu probe = (struct cmd_probe_pdu ) cmd->payload;
	389
0b8f30a5 JA	390	log_info("Probe: hostname=%s, fio ver %u.%u.%u\n", probe->hostname,
0b8f30a5 JA	391	probe->fio_major, probe->fio_minor, probe->fio_patch);
2e03b4b2 JA	392	}
2e03b4b2 JA	393
0b8f30a5	394	static int handle_client(struct fio_client *client, int one)
37db14fe JA	395	{
37db14fe JA	396	struct fio_net_cmd *cmd;
a450e492	397	int done = 0;
37db14fe	398
70e0c316	399	while ((cmd = fio_net_recv_cmd(client->fd, 1)) != NULL) {
46c48f1f JA	400	dprint(FD_NET, "%s: got cmd op %d\n", client->hostname,
	401	cmd->opcode);
	402
a64e88da	403	switch (cmd->opcode) {
a64e88da	404	case FIO_NET_CMD_QUIT:
b66570dc	405	remove_client(client);
437377e1	406	free(cmd);
a450e492	407	done = 1;
437377e1	408	break;
a64e88da	409	case FIO_NET_CMD_TEXT:
0b8f30a5 JA	410	fprintf(f_out, "Client <%s>: ", client->hostname);
	411	fwrite(cmd->payload, cmd->pdu_len, 1, f_out);
	412	fflush(f_out);
37db14fe	413	free(cmd);
a64e88da JA	414	break;
	415	case FIO_NET_CMD_TS:
	416	handle_ts(cmd);
	417	free(cmd);
	418	break;
	419	case FIO_NET_CMD_GS:
	420	handle_gs(cmd);
	421	free(cmd);
	422	break;
cf451d1e JA	423	case FIO_NET_CMD_ETA:
	424	handle_eta(cmd);
	425	free(cmd);
	426	break;
2e03b4b2 JA	427	case FIO_NET_CMD_PROBE:
	428	handle_probe(cmd);
	429	free(cmd);
	430	break;
a64e88da JA	431	default:
	432	log_err("fio: unknown client op: %d\n", cmd->opcode);
	433	free(cmd);
	434	break;
37db14fe	435	}
a450e492	436
0b8f30a5	437	if (done \|\| one)
a450e492	438	break;
37db14fe JA	439	}
	440
	441	return 0;
	442	}
b66570dc JA	443
	444	int fio_handle_clients(void)
	445	{
	446	struct fio_client *client;
	447	struct flist_head *entry;
	448	struct pollfd *pfds;
82a4be1b	449	int i, ret = 0;
b66570dc JA	450
	451	pfds = malloc(nr_clients * sizeof(struct pollfd));
	452
82a4be1b JA	453	while (!exit_backend && nr_clients) {
	454	i = 0;
	455	flist_for_each(entry, &client_list) {
	456	client = flist_entry(entry, struct fio_client, list);
b66570dc	457
82a4be1b JA	458	pfds[i].fd = client->fd;
	459	pfds[i].events = POLLIN;
	460	i++;
	461	}
	462
	463	assert(i == nr_clients);
b66570dc	464
b66570dc JA	465	ret = poll(pfds, nr_clients, 100);
	466	if (ret < 0) {
	467	if (errno == EINTR)
	468	continue;
	469	log_err("fio: poll clients: %s\n", strerror(errno));
	470	break;
	471	} else if (!ret)
	472	continue;
	473
	474	for (i = 0; i < nr_clients; i++) {
	475	if (!(pfds[i].revents & POLLIN))
	476	continue;
	477
	478	client = find_client_by_fd(pfds[i].fd);
	479	if (!client) {
	480	log_err("fio: unknown client\n");
	481	continue;
	482	}
0b8f30a5	483	handle_client(client, 0);
b66570dc JA	484	}
	485	}
	486
	487	free(pfds);
b66570dc JA	488	return 0;
b66570dc JA	489	}