[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, "removed client <%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)
{
	client->argc++;
	client->argv = realloc(client->argv, sizeof(char *) * client->argc);
	client->argv[client->argc - 1] = strdup(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, "added client <%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, "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;

	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);
}

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

	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;

	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;

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