[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 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));
		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);
}

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);
	}

	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);

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

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

		switch (cmd->opcode) {
		case FIO_NET_CMD_ACK:
			free(cmd);
			break;
		case FIO_NET_CMD_QUIT:
			remove_client(client);
			free(cmd);
			done = 1;
			break;
		case FIO_NET_CMD_TEXT:
			fwrite(cmd->payload, cmd->pdu_len, 1, stdout);
			fflush(stdout);
			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;
		default:
			log_err("fio: unknown client op: %d\n", cmd->opcode);
			free(cmd);
			break;
		}

		if (done)
			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);
		}
	}

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