blob: 88da9a1e6dd932aac41d2b82314588613d30393f [file] [log] [blame]
#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/socket.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <signal.h>
#include "fio.h"
#include "server.h"
#include "flist.h"
#include "hash.h"
struct fio_client {
struct flist_head list;
struct flist_head fd_hash_list;
struct flist_head name_hash_list;
struct sockaddr_in addr;
struct sockaddr_un addr_un;
char *hostname;
int fd;
int state;
int skip_newline;
int is_sock;
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);
#define FIO_CLIENT_HASH_BITS 7
#define FIO_CLIENT_HASH_SZ (1 << FIO_CLIENT_HASH_BITS)
#define FIO_CLIENT_HASH_MASK (FIO_CLIENT_HASH_SZ - 1)
static struct flist_head client_fd_hash[FIO_CLIENT_HASH_SZ];
static struct flist_head client_name_hash[FIO_CLIENT_HASH_SZ];
static int handle_client(struct fio_client *client);
static void fio_client_add_fd_hash(struct fio_client *client)
{
int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
bucket &= FIO_CLIENT_HASH_MASK;
flist_add(&client->fd_hash_list, &client_fd_hash[bucket]);
}
static void fio_client_remove_fd_hash(struct fio_client *client)
{
if (!flist_empty(&client->fd_hash_list))
flist_del_init(&client->fd_hash_list);
}
static void fio_client_add_name_hash(struct fio_client *client)
{
int bucket = jhash(client->hostname, strlen(client->hostname), 0);
bucket &= FIO_CLIENT_HASH_MASK;
flist_add(&client->name_hash_list, &client_name_hash[bucket]);
}
static void fio_client_remove_name_hash(struct fio_client *client)
{
if (!flist_empty(&client->name_hash_list))
flist_del_init(&client->name_hash_list);
}
static void fio_init fio_client_hash_init(void)
{
int i;
for (i = 0; i < FIO_CLIENT_HASH_SZ; i++) {
INIT_FLIST_HEAD(&client_fd_hash[i]);
INIT_FLIST_HEAD(&client_name_hash[i]);
}
}
static struct fio_client *find_client_by_fd(int fd)
{
int bucket = hash_long(fd, FIO_CLIENT_HASH_BITS) & FIO_CLIENT_HASH_MASK;
struct fio_client *client;
struct flist_head *entry;
flist_for_each(entry, &client_fd_hash[bucket]) {
client = flist_entry(entry, struct fio_client, fd_hash_list);
if (client->fd == fd)
return client;
}
return NULL;
}
static struct fio_client *find_client_by_name(const char *name)
{
int bucket = jhash(name, strlen(name), 0) & FIO_CLIENT_HASH_BITS;
struct fio_client *client;
struct flist_head *entry;
flist_for_each(entry, &client_name_hash[bucket]) {
client = flist_entry(entry, struct fio_client, name_hash_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);
fio_client_remove_fd_hash(client);
fio_client_remove_name_hash(client);
free(client->hostname);
if (client->argv)
free(client->argv);
free(client);
nr_clients--;
}
static int __fio_client_add_cmd_option(struct fio_client *client,
const char *opt)
{
int index;
if (client->argc == FIO_NET_CMD_JOBLINE_ARGV) {
log_err("fio: max cmd line number reached.\n");
log_err("fio: cmd line <%s> has been ignored.\n", opt);
return 1;
}
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);
return 0;
}
int fio_client_add_cmd_option(const char *hostname, const char *opt)
{
struct fio_client *client;
if (!hostname || !opt)
return 0;
client = find_client_by_name(hostname);
if (!client) {
log_err("fio: unknown client %s\n", hostname);
return 1;
}
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));
INIT_FLIST_HEAD(&client->list);
INIT_FLIST_HEAD(&client->fd_hash_list);
INIT_FLIST_HEAD(&client->name_hash_list);
if (!strncmp(hostname, "sock:", 5)) {
client->hostname = strdup(hostname + 5);
client->is_sock = 1;
} else
client->hostname = strdup(hostname);
client->fd = -1;
fio_client_add_name_hash(client);
__fio_client_add_cmd_option(client, "fio");
flist_add(&client->list, &client_list);
nr_clients++;
}
static int fio_client_connect_ip(struct fio_client *client)
{
int fd;
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));
log_err("fio: failed looking up hostname %s\n",
client->hostname);
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;
}
return fd;
}
static int fio_client_connect_sock(struct fio_client *client)
{
struct sockaddr_un *addr = &client->addr_un;
fio_socklen_t len;
int fd;
memset(addr, 0, sizeof(*addr));
addr->sun_family = AF_UNIX;
strcpy(addr->sun_path, client->hostname);
fd = socket(AF_UNIX, SOCK_STREAM, 0);
if (fd < 0) {
log_err("fio: socket: %s\n", strerror(errno));
return -1;
}
len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
if (connect(fd, (struct sockaddr *) addr, len) < 0) {
log_err("fio: connect; %s\n", strerror(errno));
return -1;
}
return fd;
}
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));
if (client->is_sock)
fd = fio_client_connect_sock(client);
else
fd = fio_client_connect_ip(client);
if (fd < 0)
return 1;
client->fd = fd;
fio_client_add_fd_hash(client);
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);
}
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 <%s> open: %s\n", filename, 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);
/*
* Floats arrive as IEEE 754 encoded uint64_t, convert back to double
*/
dst->mean.u.f = fio_uint64_to_double(le64_to_cpu(dst->mean.u.i));
dst->S.u.f = fio_uint64_to_double(le64_to_cpu(dst->S.u.i));
}
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);
for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
fio_fp64_t *fps = &src->percentile_list[i];
fio_fp64_t *fpd = &dst->percentile_list[i];
fpd->u.f = fio_uint64_to_double(le64_to_cpu(fps->u.i));
}
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, be=%u, fio ver %u.%u.%u\n",
probe->hostname, probe->bigendian, probe->fio_major,
probe->fio_minor, probe->fio_patch);
}
static int handle_client(struct fio_client *client)
{
struct fio_net_cmd *cmd;
dprint(FD_NET, "client: handle %s\n", client->hostname);
cmd = fio_net_recv_cmd(client->fd);
if (!cmd)
return 0;
dprint(FD_NET, "client: got cmd op %d from %s\n",
cmd->opcode, client->hostname);
switch (cmd->opcode) {
case FIO_NET_CMD_QUIT:
remove_client(client);
free(cmd);
break;
case FIO_NET_CMD_TEXT: {
const char *buf = (const char *) cmd->payload;
int fio_unused ret;
if (!client->skip_newline)
fprintf(f_out, "<%s> ", client->hostname);
ret = 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;
}
return 1;
}
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 fd %d\n", pfds[i].fd);
continue;
}
if (!handle_client(client)) {
log_info("client: host=%s disconnected\n",
client->hostname);
remove_client(client);
}
}
}
free(pfds);
return 0;
}