[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;

	int state;
	int skip_newline;

	uint16_t argc;
	char **argv;
};

enum {
	Client_created		= 0,
	Client_connected	= 1,
	Client_started		= 2,
	Client_stopped		= 3,
	Client_exited		= 4,
};

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;
}

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;
}

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

	free(client->hostname);
	if (client->argv)
		free(client->argv);

	free(client);
}

static void __fio_client_add_cmd_option(struct fio_client *client,
					const char *opt)
{
	int index;

	index = client->argc++;
	client->argv = realloc(client->argv, sizeof(char *) * client->argc);
	client->argv[index] = strdup(opt);
	dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
}

void fio_client_add_cmd_option(const char *hostname, const char *opt)
{
	struct fio_client *client;

	if (!hostname || !opt)
		return;

	client = find_client_by_name(hostname);
	if (!client) {
		log_err("fio: unknown client %s\n", hostname);
		return;
	}

	__fio_client_add_cmd_option(client, opt);
}

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

	dprint(FD_NET, "client: added  <%s>\n", hostname);
	client = malloc(sizeof(*client));
	memset(client, 0, sizeof(*client));

	client->hostname = strdup(hostname);
	client->fd = -1;

	__fio_client_add_cmd_option(client, "fio");

	flist_add(&client->list, &client_list);
	nr_clients++;
}

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

	dprint(FD_NET, "client: 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;
	client->state = Client_connected;
	return 0;
}

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

	dprint(FD_NET, "client: terminate clients\n");

	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)
{
	dprint(FD_NET, "client: got sign %d\n", 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)
{
	dprint(FD_NET, "client: send probe\n");

	fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0);
	handle_client(client, 1);
}

static int send_client_cmd_line(struct fio_client *client)
{
	struct cmd_line_pdu *pdu;
	int i, ret;

	dprint(FD_NET, "client: send cmdline %d\n", client->argc);

	pdu = malloc(sizeof(*pdu));
	for (i = 0; i < client->argc; i++)
		strcpy((char *) pdu->argv[i], client->argv[i]);

	pdu->argc = cpu_to_le16(client->argc);
	ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, sizeof(*pdu));
	free(pdu);
	return ret;
}

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

	dprint(FD_NET, "client: connect all\n");

	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);

		if (client->argc > 1)
			send_client_cmd_line(client);
	}

	return !nr_clients;
}

/*
 * 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 = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, 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;

	dprint(FD_NET, "client: handle %s\n", client->hostname);

	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: {
			const char *buf = (const char *) cmd->payload;

			if (!client->skip_newline)
				fprintf(f_out, "Client <%s>: ", client->hostname);
			fwrite(buf, cmd->pdu_len, 1, f_out);
			fflush(f_out);
			client->skip_newline = strchr(buf, '\n') == NULL;
			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;
		case FIO_NET_CMD_START:
			client->state = Client_started;
			free(cmd);
			break;
		case FIO_NET_CMD_STOP:
			client->state = Client_stopped;
			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);

		do {
			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;
		} while (ret <= 0);

		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;
81179eec JA	26
81179eec JA	27	int state;
17dd1764	28	int skip_newline;
81179eec JA	29
	30	uint16_t argc;
	31	char **argv;
	32	};
	33
	34	enum {
5c2857f9	35	Client_created = 0,
81179eec JA	36	Client_connected = 1,
	37	Client_started = 2,
	38	Client_stopped = 3,
5c2857f9	39	Client_exited = 4,
b66570dc JA	40	};
	41
	42	static FLIST_HEAD(client_list);
b66570dc	43
0b8f30a5 JA	44	static int handle_client(struct fio_client *client, int one);
0b8f30a5 JA	45
b66570dc JA	46	static struct fio_client *find_client_by_fd(int fd)
	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 (client->fd == fd)
	55	return client;
	56	}
	57
	58	return NULL;
	59	}
	60
	61	static struct fio_client find_client_by_name(const char name)
	62	{
	63	struct fio_client *client;
	64	struct flist_head *entry;
	65
	66	flist_for_each(entry, &client_list) {
	67	client = flist_entry(entry, struct fio_client, list);
	68
	69	if (!strcmp(name, client->hostname))
	70	return client;
	71	}
	72
	73	return NULL;
	74	}
	75
	76	static void remove_client(struct fio_client *client)
	77	{
39e8e016	78	dprint(FD_NET, "client: removed <%s>\n", client->hostname);
b66570dc JA	79	flist_del(&client->list);
b66570dc JA	80	nr_clients--;
81179eec	81
b66570dc	82	free(client->hostname);
81179eec JA	83	if (client->argv)
	84	free(client->argv);
	85
b66570dc JA	86	free(client);
b66570dc JA	87	}
132159a5	88
81179eec JA	89	static void __fio_client_add_cmd_option(struct fio_client *client,
	90	const char *opt)
	91	{
39e8e016 JA	92	int index;
	93
	94	index = client->argc++;
81179eec	95	client->argv = realloc(client->argv, sizeof(char ) client->argc);
39e8e016 JA	96	client->argv[index] = strdup(opt);
39e8e016 JA	97	dprint(FD_NET, "client: add cmd %d: %s\n", index, opt);
81179eec JA	98	}
	99
	100	void fio_client_add_cmd_option(const char hostname, const char opt)
	101	{
	102	struct fio_client *client;
	103
	104	if (!hostname \|\| !opt)
	105	return;
	106
	107	client = find_client_by_name(hostname);
	108	if (!client) {
	109	log_err("fio: unknown client %s\n", hostname);
	110	return;
	111	}
	112
	113	__fio_client_add_cmd_option(client, opt);
	114	}
	115
a37f69b7	116	void fio_client_add(const char *hostname)
132159a5	117	{
b66570dc	118	struct fio_client *client;
132159a5	119
39e8e016	120	dprint(FD_NET, "client: added <%s>\n", hostname);
b66570dc	121	client = malloc(sizeof(*client));
a37f69b7	122	memset(client, 0, sizeof(*client));
81179eec	123
a37f69b7 JA	124	client->hostname = strdup(hostname);
a37f69b7 JA	125	client->fd = -1;
81179eec JA	126
	127	__fio_client_add_cmd_option(client, "fio");
	128
a37f69b7 JA	129	flist_add(&client->list, &client_list);
	130	nr_clients++;
	131	}
	132
	133	static int fio_client_connect(struct fio_client *client)
	134	{
	135	int fd;
132159a5	136
39e8e016	137	dprint(FD_NET, "client: connect to host %s\n", client->hostname);
46c48f1f	138
b66570dc JA	139	memset(&client->addr, 0, sizeof(client->addr));
	140	client->addr.sin_family = AF_INET;
	141	client->addr.sin_port = htons(fio_net_port);
	142
a37f69b7	143	if (inet_aton(client->hostname, &client->addr.sin_addr) != 1) {
132159a5 JA	144	struct hostent *hent;
132159a5 JA	145
a37f69b7	146	hent = gethostbyname(client->hostname);
132159a5 JA	147	if (!hent) {
	148	log_err("fio: gethostbyname: %s\n", strerror(errno));
	149	return 1;
	150	}
	151
b66570dc	152	memcpy(&client->addr.sin_addr, hent->h_addr, 4);
132159a5 JA	153	}
	154
	155	fd = socket(AF_INET, SOCK_STREAM, 0);
	156	if (fd < 0) {
	157	log_err("fio: socket: %s\n", strerror(errno));
	158	return 1;
	159	}
	160
b66570dc	161	if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) {
132159a5	162	log_err("fio: connect: %s\n", strerror(errno));
cdf54d85	163	log_err("fio: failed to connect to %s\n", client->hostname);
132159a5 JA	164	return 1;
	165	}
	166
b66570dc	167	client->fd = fd;
81179eec	168	client->state = Client_connected;
132159a5 JA	169	return 0;
	170	}
	171
cc0df00a JA	172	void fio_clients_terminate(void)
	173	{
	174	struct flist_head *entry;
	175	struct fio_client *client;
	176
60efd14e JA	177	dprint(FD_NET, "client: terminate clients\n");
60efd14e JA	178
cc0df00a JA	179	flist_for_each(entry, &client_list) {
	180	client = flist_entry(entry, struct fio_client, list);
	181
	182	fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_QUIT, 0);
	183	}
	184	}
	185
	186	static void sig_int(int sig)
	187	{
60efd14e	188	dprint(FD_NET, "client: got sign %d\n", sig);
cc0df00a JA	189	fio_clients_terminate();
	190	}
	191
	192	static void client_signal_handler(void)
	193	{
	194	struct sigaction act;
	195
	196	memset(&act, 0, sizeof(act));
	197	act.sa_handler = sig_int;
	198	act.sa_flags = SA_RESTART;
	199	sigaction(SIGINT, &act, NULL);
	200
	201	memset(&act, 0, sizeof(act));
	202	act.sa_handler = sig_int;
	203	act.sa_flags = SA_RESTART;
	204	sigaction(SIGTERM, &act, NULL);
	205	}
	206
0b8f30a5 JA	207	static void probe_client(struct fio_client *client)
0b8f30a5 JA	208	{
60efd14e JA	209	dprint(FD_NET, "client: send probe\n");
60efd14e JA	210
0b8f30a5 JA	211	fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_PROBE, 0);
	212	handle_client(client, 1);
	213	}
	214
81179eec JA	215	static int send_client_cmd_line(struct fio_client *client)
	216	{
	217	struct cmd_line_pdu *pdu;
	218	int i, ret;
	219
39e8e016	220	dprint(FD_NET, "client: send cmdline %d\n", client->argc);
60efd14e	221
81179eec JA	222	pdu = malloc(sizeof(*pdu));
	223	for (i = 0; i < client->argc; i++)
	224	strcpy((char *) pdu->argv[i], client->argv[i]);
	225
	226	pdu->argc = cpu_to_le16(client->argc);
	227	ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, sizeof(*pdu));
	228	free(pdu);
	229	return ret;
	230	}
	231
a37f69b7 JA	232	int fio_clients_connect(void)
	233	{
	234	struct fio_client *client;
	235	struct flist_head entry, tmp;
	236	int ret;
	237
60efd14e JA	238	dprint(FD_NET, "client: connect all\n");
60efd14e JA	239
cc0df00a JA	240	client_signal_handler();
cc0df00a JA	241
a37f69b7 JA	242	flist_for_each_safe(entry, tmp, &client_list) {
	243	client = flist_entry(entry, struct fio_client, list);
	244
	245	ret = fio_client_connect(client);
0b8f30a5	246	if (ret) {
a37f69b7	247	remove_client(client);
0b8f30a5 JA	248	continue;
	249	}
	250
	251	probe_client(client);
81179eec JA	252
	253	if (client->argc > 1)
	254	send_client_cmd_line(client);
a37f69b7 JA	255	}
	256
	257	return !nr_clients;
	258	}
	259
132159a5 JA	260	/*
	261	* Send file contents to server backend. We could use sendfile(), but to remain
	262	* more portable lets just read/write the darn thing.
	263	*/
a37f69b7	264	static int fio_client_send_ini(struct fio_client client, const char filename)
132159a5 JA	265	{
	266	struct stat sb;
	267	char p, buf;
	268	off_t len;
	269	int fd, ret;
	270
46c48f1f JA	271	dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname);
46c48f1f JA	272
132159a5 JA	273	fd = open(filename, O_RDONLY);
	274	if (fd < 0) {
	275	log_err("fio: job file open: %s\n", strerror(errno));
	276	return 1;
	277	}
	278
	279	if (fstat(fd, &sb) < 0) {
	280	log_err("fio: job file stat: %s\n", strerror(errno));
	281	return 1;
	282	}
	283
	284	buf = malloc(sb.st_size);
	285
	286	len = sb.st_size;
	287	p = buf;
	288	do {
	289	ret = read(fd, p, len);
	290	if (ret > 0) {
	291	len -= ret;
	292	if (!len)
	293	break;
	294	p += ret;
	295	continue;
	296	} else if (!ret)
	297	break;
	298	else if (errno == EAGAIN \|\| errno == EINTR)
	299	continue;
	300	} while (1);
	301
0b8f30a5 JA	302	if (len) {
	303	log_err("fio: failed reading job file %s\n", filename);
	304	return 1;
	305	}
	306
81179eec	307	ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, sb.st_size);
132159a5 JA	308	free(buf);
	309	return ret;
	310	}
37db14fe	311
a37f69b7 JA	312	int fio_clients_send_ini(const char *filename)
	313	{
	314	struct fio_client *client;
	315	struct flist_head entry, tmp;
	316
	317	flist_for_each_safe(entry, tmp, &client_list) {
	318	client = flist_entry(entry, struct fio_client, list);
	319
	320	if (fio_client_send_ini(client, filename))
	321	remove_client(client);
	322	}
	323
	324	return !nr_clients;
	325	}
	326
a64e88da JA	327	static void convert_io_stat(struct io_stat dst, struct io_stat src)
	328	{
	329	dst->max_val = le64_to_cpu(src->max_val);
	330	dst->min_val = le64_to_cpu(src->min_val);
	331	dst->samples = le64_to_cpu(src->samples);
	332	/* FIXME */
ddcc0b69 JA	333	dst->mean = __le64_to_cpu(src->mean);
ddcc0b69 JA	334	dst->S = __le64_to_cpu(src->S);
a64e88da JA	335	}
	336
	337	static void convert_ts(struct thread_stat dst, struct thread_stat src)
	338	{
	339	int i, j;
	340
	341	dst->error = le32_to_cpu(src->error);
	342	dst->groupid = le32_to_cpu(src->groupid);
	343	dst->pid = le32_to_cpu(src->pid);
	344	dst->members = le32_to_cpu(src->members);
	345
	346	for (i = 0; i < 2; i++) {
	347	convert_io_stat(&dst->clat_stat[i], &src->clat_stat[i]);
	348	convert_io_stat(&dst->slat_stat[i], &src->slat_stat[i]);
	349	convert_io_stat(&dst->lat_stat[i], &src->lat_stat[i]);
	350	convert_io_stat(&dst->bw_stat[i], &src->bw_stat[i]);
	351	}
	352
	353	dst->usr_time = le64_to_cpu(src->usr_time);
	354	dst->sys_time = le64_to_cpu(src->sys_time);
	355	dst->ctx = le64_to_cpu(src->ctx);
	356	dst->minf = le64_to_cpu(src->minf);
	357	dst->majf = le64_to_cpu(src->majf);
	358	dst->clat_percentiles = le64_to_cpu(src->clat_percentiles);
	359	dst->percentile_list = NULL;
	360
	361	for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
	362	dst->io_u_map[i] = le32_to_cpu(src->io_u_map[i]);
	363	dst->io_u_submit[i] = le32_to_cpu(src->io_u_submit[i]);
	364	dst->io_u_complete[i] = le32_to_cpu(src->io_u_complete[i]);
	365	}
	366
	367	for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) {
	368	dst->io_u_lat_u[i] = le32_to_cpu(src->io_u_lat_u[i]);
	369	dst->io_u_lat_m[i] = le32_to_cpu(src->io_u_lat_m[i]);
	370	}
	371
	372	for (i = 0; i < 2; i++)
	373	for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
	374	dst->io_u_plat[i][j] = le32_to_cpu(src->io_u_plat[i][j]);
	375
	376	for (i = 0; i < 3; i++) {
	377	dst->total_io_u[i] = le64_to_cpu(src->total_io_u[i]);
93eee04a	378	dst->short_io_u[i] = le64_to_cpu(src->short_io_u[i]);
a64e88da JA	379	}
	380
	381	dst->total_submit = le64_to_cpu(src->total_submit);
	382	dst->total_complete = le64_to_cpu(src->total_complete);
	383
	384	for (i = 0; i < 2; i++) {
	385	dst->io_bytes[i] = le64_to_cpu(src->io_bytes[i]);
	386	dst->runtime[i] = le64_to_cpu(src->runtime[i]);
	387	}
	388
	389	dst->total_run_time = le64_to_cpu(src->total_run_time);
	390	dst->continue_on_error = le16_to_cpu(src->continue_on_error);
	391	dst->total_err_count = le64_to_cpu(src->total_err_count);
ddcc0b69 JA	392	dst->first_error = le32_to_cpu(src->first_error);
ddcc0b69 JA	393	dst->kb_base = le32_to_cpu(src->kb_base);
a64e88da JA	394	}
	395
	396	static void convert_gs(struct group_run_stats dst, struct group_run_stats src)
	397	{
	398	int i;
	399
	400	for (i = 0; i < 2; i++) {
	401	dst->max_run[i] = le64_to_cpu(src->max_run[i]);
	402	dst->min_run[i] = le64_to_cpu(src->min_run[i]);
	403	dst->max_bw[i] = le64_to_cpu(src->max_bw[i]);
	404	dst->min_bw[i] = le64_to_cpu(src->min_bw[i]);
	405	dst->io_kb[i] = le64_to_cpu(src->io_kb[i]);
	406	dst->agg[i] = le64_to_cpu(src->agg[i]);
	407	}
	408
	409	dst->kb_base = le32_to_cpu(src->kb_base);
	410	dst->groupid = le32_to_cpu(src->groupid);
	411	}
	412
	413	static void handle_ts(struct fio_net_cmd *cmd)
	414	{
	415	struct cmd_ts_pdu p = (struct cmd_ts_pdu ) cmd->payload;
	416
	417	convert_ts(&p->ts, &p->ts);
	418	convert_gs(&p->rs, &p->rs);
	419
	420	show_thread_status(&p->ts, &p->rs);
	421	}
	422
	423	static void handle_gs(struct fio_net_cmd *cmd)
	424	{
	425	struct group_run_stats gs = (struct group_run_stats ) cmd->payload;
	426
	427	convert_gs(gs, gs);
	428	show_group_stats(gs);
	429	}
	430
cf451d1e JA	431	static void handle_eta(struct fio_net_cmd *cmd)
	432	{
	433	struct jobs_eta je = (struct jobs_eta ) cmd->payload;
	434	int i;
	435
	436	je->nr_running = le32_to_cpu(je->nr_running);
	437	je->nr_ramp = le32_to_cpu(je->nr_ramp);
	438	je->nr_pending = le32_to_cpu(je->nr_pending);
	439	je->files_open = le32_to_cpu(je->files_open);
	440	je->m_rate = le32_to_cpu(je->m_rate);
	441	je->t_rate = le32_to_cpu(je->t_rate);
	442	je->m_iops = le32_to_cpu(je->m_iops);
	443	je->t_iops = le32_to_cpu(je->t_iops);
	444
	445	for (i = 0; i < 2; i++) {
	446	je->rate[i] = le32_to_cpu(je->rate[i]);
	447	je->iops[i] = le32_to_cpu(je->iops[i]);
	448	}
	449
	450	je->elapsed_sec = le32_to_cpu(je->nr_running);
	451	je->eta_sec = le64_to_cpu(je->eta_sec);
	452
	453	display_thread_status(je);
	454	}
	455
2e03b4b2 JA	456	static void handle_probe(struct fio_net_cmd *cmd)
	457	{
	458	struct cmd_probe_pdu probe = (struct cmd_probe_pdu ) cmd->payload;
	459
0b8f30a5 JA	460	log_info("Probe: hostname=%s, fio ver %u.%u.%u\n", probe->hostname,
0b8f30a5 JA	461	probe->fio_major, probe->fio_minor, probe->fio_patch);
2e03b4b2 JA	462	}
2e03b4b2 JA	463
0b8f30a5	464	static int handle_client(struct fio_client *client, int one)
37db14fe JA	465	{
37db14fe JA	466	struct fio_net_cmd *cmd;
a450e492	467	int done = 0;
37db14fe	468
60efd14e JA	469	dprint(FD_NET, "client: handle %s\n", client->hostname);
60efd14e JA	470
70e0c316	471	while ((cmd = fio_net_recv_cmd(client->fd, 1)) != NULL) {
46c48f1f JA	472	dprint(FD_NET, "%s: got cmd op %d\n", client->hostname,
	473	cmd->opcode);
	474
a64e88da	475	switch (cmd->opcode) {
a64e88da	476	case FIO_NET_CMD_QUIT:
b66570dc	477	remove_client(client);
437377e1	478	free(cmd);
a450e492	479	done = 1;
437377e1	480	break;
17dd1764 JA	481	case FIO_NET_CMD_TEXT: {
	482	const char buf = (const char ) cmd->payload;
	483
	484	if (!client->skip_newline)
	485	fprintf(f_out, "Client <%s>: ", client->hostname);
	486	fwrite(buf, cmd->pdu_len, 1, f_out);
0b8f30a5	487	fflush(f_out);
17dd1764	488	client->skip_newline = strchr(buf, '\n') == NULL;
37db14fe	489	free(cmd);
a64e88da	490	break;
17dd1764	491	}
a64e88da JA	492	case FIO_NET_CMD_TS:
	493	handle_ts(cmd);
	494	free(cmd);
	495	break;
	496	case FIO_NET_CMD_GS:
	497	handle_gs(cmd);
	498	free(cmd);
	499	break;
cf451d1e JA	500	case FIO_NET_CMD_ETA:
	501	handle_eta(cmd);
	502	free(cmd);
	503	break;
2e03b4b2 JA	504	case FIO_NET_CMD_PROBE:
	505	handle_probe(cmd);
	506	free(cmd);
	507	break;
81179eec JA	508	case FIO_NET_CMD_START:
	509	client->state = Client_started;
	510	free(cmd);
	511	break;
	512	case FIO_NET_CMD_STOP:
	513	client->state = Client_stopped;
	514	free(cmd);
	515	break;
a64e88da JA	516	default:
	517	log_err("fio: unknown client op: %d\n", cmd->opcode);
	518	free(cmd);
	519	break;
37db14fe	520	}
a450e492	521
0b8f30a5	522	if (done \|\| one)
a450e492	523	break;
37db14fe JA	524	}
	525
	526	return 0;
	527	}
b66570dc JA	528
	529	int fio_handle_clients(void)
	530	{
	531	struct fio_client *client;
	532	struct flist_head *entry;
	533	struct pollfd *pfds;
82a4be1b	534	int i, ret = 0;
b66570dc JA	535
	536	pfds = malloc(nr_clients * sizeof(struct pollfd));
	537
82a4be1b JA	538	while (!exit_backend && nr_clients) {
	539	i = 0;
	540	flist_for_each(entry, &client_list) {
	541	client = flist_entry(entry, struct fio_client, list);
b66570dc	542
82a4be1b JA	543	pfds[i].fd = client->fd;
	544	pfds[i].events = POLLIN;
	545	i++;
	546	}
	547
	548	assert(i == nr_clients);
b66570dc	549
5c2857f9 JA	550	do {
	551	ret = poll(pfds, nr_clients, 100);
	552	if (ret < 0) {
	553	if (errno == EINTR)
	554	continue;
	555	log_err("fio: poll clients: %s\n", strerror(errno));
	556	break;
	557	} else if (!ret)
b66570dc	558	continue;
5c2857f9	559	} while (ret <= 0);
b66570dc JA	560
	561	for (i = 0; i < nr_clients; i++) {
	562	if (!(pfds[i].revents & POLLIN))
	563	continue;
	564
	565	client = find_client_by_fd(pfds[i].fd);
	566	if (!client) {
	567	log_err("fio: unknown client\n");
	568	continue;
	569	}
0b8f30a5	570	handle_client(client, 0);
b66570dc JA	571	}
	572	}
	573
	574	free(pfds);
b66570dc JA	575	return 0;
b66570dc JA	576	}