blob: 8d7c03316513bdd2fa9a9dbea0576e968b9c7c7a [file] [log] [blame]
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <poll.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <signal.h>
#ifdef CONFIG_ZLIB
#include <zlib.h>
#endif
#include "fio.h"
#include "client.h"
#include "server.h"
#include "flist.h"
#include "hash.h"
#include "verify-state.h"
static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd);
static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd);
static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd);
static void handle_stop(struct fio_client *client);
static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd);
static void convert_text(struct fio_net_cmd *cmd);
static void client_display_thread_status(struct jobs_eta *je);
struct client_ops fio_client_ops = {
.text = handle_text,
.disk_util = handle_du,
.thread_status = handle_ts,
.group_stats = handle_gs,
.stop = handle_stop,
.start = handle_start,
.eta = client_display_thread_status,
.probe = handle_probe,
.eta_msec = FIO_CLIENT_DEF_ETA_MSEC,
.client_type = FIO_CLIENT_TYPE_CLI,
};
static struct timespec eta_ts;
static FLIST_HEAD(client_list);
static FLIST_HEAD(eta_list);
static FLIST_HEAD(arg_list);
struct thread_stat client_ts;
struct group_run_stats client_gs;
int sum_stat_clients;
static int sum_stat_nr;
static struct json_object *root = NULL;
static struct json_object *job_opt_object = NULL;
static struct json_array *clients_array = NULL;
static struct json_array *du_array = NULL;
static int error_clients;
#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_hash[FIO_CLIENT_HASH_SZ];
static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *, bool *);
static void fio_client_add_hash(struct fio_client *client)
{
int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
bucket &= FIO_CLIENT_HASH_MASK;
flist_add(&client->hash_list, &client_hash[bucket]);
}
static void fio_client_remove_hash(struct fio_client *client)
{
if (!flist_empty(&client->hash_list))
flist_del_init(&client->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_hash[i]);
}
static int read_data(int fd, void *data, size_t size)
{
ssize_t ret;
while (size) {
ret = read(fd, data, size);
if (ret < 0) {
if (errno == EAGAIN || errno == EINTR)
continue;
break;
} else if (!ret)
break;
else {
data += ret;
size -= ret;
}
}
if (size)
return EAGAIN;
return 0;
}
static int read_ini_data(int fd, void *data, size_t size)
{
char *p = data;
int ret = 0;
FILE *fp;
int dupfd;
dupfd = dup(fd);
if (dupfd < 0)
return errno;
fp = fdopen(dupfd, "r");
if (!fp) {
ret = errno;
close(dupfd);
goto out;
}
while (1) {
ssize_t len;
char buf[OPT_LEN_MAX+1], *sub;
if (!fgets(buf, sizeof(buf), fp)) {
if (ferror(fp)) {
if (errno == EAGAIN || errno == EINTR)
continue;
ret = errno;
}
break;
}
sub = fio_option_dup_subs(buf);
len = strlen(sub);
if (len + 1 > size) {
log_err("fio: no space left to read data\n");
free(sub);
ret = ENOSPC;
break;
}
memcpy(p, sub, len);
free(sub);
p += len;
*p = '\0';
size -= len;
}
fclose(fp);
out:
return ret;
}
static void fio_client_json_init(void)
{
char time_buf[32];
time_t time_p;
if (!(output_format & FIO_OUTPUT_JSON))
return;
time(&time_p);
os_ctime_r((const time_t *) &time_p, time_buf, sizeof(time_buf));
time_buf[strlen(time_buf) - 1] = '\0';
root = json_create_object();
json_object_add_value_string(root, "fio version", fio_version_string);
json_object_add_value_int(root, "timestamp", time_p);
json_object_add_value_string(root, "time", time_buf);
job_opt_object = json_create_object();
json_object_add_value_object(root, "global options", job_opt_object);
clients_array = json_create_array();
json_object_add_value_array(root, "client_stats", clients_array);
du_array = json_create_array();
json_object_add_value_array(root, "disk_util", du_array);
}
static void fio_client_json_fini(void)
{
struct buf_output out;
if (!root)
return;
buf_output_init(&out);
__log_buf(&out, "\n");
json_print_object(root, &out);
__log_buf(&out, "\n");
log_info_buf(out.buf, out.buflen);
buf_output_free(&out);
json_free_object(root);
root = NULL;
job_opt_object = NULL;
clients_array = NULL;
du_array = NULL;
}
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_hash[bucket]) {
client = flist_entry(entry, struct fio_client, hash_list);
if (client->fd == fd) {
client->refs++;
return client;
}
}
return NULL;
}
void fio_put_client(struct fio_client *client)
{
if (--client->refs)
return;
log_info_buf(client->buf.buf, client->buf.buflen);
buf_output_free(&client->buf);
free(client->hostname);
if (client->argv)
free(client->argv);
if (client->name)
free(client->name);
while (client->nr_files) {
struct client_file *cf = &client->files[--client->nr_files];
free(cf->file);
}
if (client->files)
free(client->files);
if (client->opt_lists)
free(client->opt_lists);
if (!client->did_stat)
sum_stat_clients--;
if (client->error)
error_clients++;
free(client);
}
static int fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
{
if (!--eta->pending) {
eta_fn(&eta->eta);
free(eta);
return 0;
}
return 1;
}
static void fio_drain_client_text(struct fio_client *client)
{
do {
struct fio_net_cmd *cmd;
cmd = fio_net_recv_cmd(client->fd, false);
if (!cmd)
break;
if (cmd->opcode == FIO_NET_CMD_TEXT) {
convert_text(cmd);
client->ops->text(client, cmd);
}
free(cmd);
} while (1);
}
static void remove_client(struct fio_client *client)
{
assert(client->refs);
dprint(FD_NET, "client: removed <%s>\n", client->hostname);
fio_drain_client_text(client);
if (!flist_empty(&client->list))
flist_del_init(&client->list);
fio_client_remove_hash(client);
if (!flist_empty(&client->eta_list)) {
flist_del_init(&client->eta_list);
fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
}
close(client->fd);
client->fd = -1;
if (client->ops->removed)
client->ops->removed(client);
nr_clients--;
fio_put_client(client);
}
struct fio_client *fio_get_client(struct fio_client *client)
{
client->refs++;
return 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(void *cookie, const char *opt)
{
struct fio_client *client = cookie;
struct flist_head *entry;
if (!client || !opt)
return;
__fio_client_add_cmd_option(client, opt);
/*
* Duplicate arguments to shared client group
*/
flist_for_each(entry, &arg_list) {
client = flist_entry(entry, struct fio_client, arg_list);
__fio_client_add_cmd_option(client, opt);
}
}
static struct fio_client *get_new_client(void)
{
struct fio_client *client;
client = malloc(sizeof(*client));
memset(client, 0, sizeof(*client));
INIT_FLIST_HEAD(&client->list);
INIT_FLIST_HEAD(&client->hash_list);
INIT_FLIST_HEAD(&client->arg_list);
INIT_FLIST_HEAD(&client->eta_list);
INIT_FLIST_HEAD(&client->cmd_list);
buf_output_init(&client->buf);
return client;
}
struct fio_client *fio_client_add_explicit(struct client_ops *ops,
const char *hostname, int type,
int port)
{
struct fio_client *client;
client = get_new_client();
client->hostname = strdup(hostname);
if (type == Fio_client_socket)
client->is_sock = true;
else {
int ipv6;
ipv6 = type == Fio_client_ipv6;
if (fio_server_parse_host(hostname, ipv6,
&client->addr.sin_addr,
&client->addr6.sin6_addr))
goto err;
client->port = port;
}
client->fd = -1;
client->ops = ops;
client->refs = 1;
client->type = ops->client_type;
__fio_client_add_cmd_option(client, "fio");
flist_add(&client->list, &client_list);
nr_clients++;
dprint(FD_NET, "client: added <%s>\n", client->hostname);
return client;
err:
free(client);
return NULL;
}
int fio_client_add_ini_file(void *cookie, const char *ini_file, bool remote)
{
struct fio_client *client = cookie;
struct client_file *cf;
size_t new_size;
void *new_files;
if (!client)
return 1;
dprint(FD_NET, "client <%s>: add ini %s\n", client->hostname, ini_file);
new_size = (client->nr_files + 1) * sizeof(struct client_file);
new_files = realloc(client->files, new_size);
if (!new_files)
return 1;
client->files = new_files;
cf = &client->files[client->nr_files];
cf->file = strdup(ini_file);
cf->remote = remote;
client->nr_files++;
return 0;
}
int fio_client_add(struct client_ops *ops, const char *hostname, void **cookie)
{
struct fio_client *existing = *cookie;
struct fio_client *client;
if (existing) {
/*
* We always add our "exec" name as the option, hence 1
* means empty.
*/
if (existing->argc == 1)
flist_add_tail(&existing->arg_list, &arg_list);
else {
while (!flist_empty(&arg_list))
flist_del_init(arg_list.next);
}
}
client = get_new_client();
if (fio_server_parse_string(hostname, &client->hostname,
&client->is_sock, &client->port,
&client->addr.sin_addr,
&client->addr6.sin6_addr,
&client->ipv6))
return -1;
client->fd = -1;
client->ops = ops;
client->refs = 1;
client->type = ops->client_type;
__fio_client_add_cmd_option(client, "fio");
flist_add(&client->list, &client_list);
nr_clients++;
dprint(FD_NET, "client: added <%s>\n", client->hostname);
*cookie = client;
return 0;
}
static const char *server_name(struct fio_client *client, char *buf,
size_t bufsize)
{
const char *from;
if (client->ipv6)
from = inet_ntop(AF_INET6, (struct sockaddr *) &client->addr6.sin6_addr, buf, bufsize);
else if (client->is_sock)
from = "sock";
else
from = inet_ntop(AF_INET, (struct sockaddr *) &client->addr.sin_addr, buf, bufsize);
return from;
}
static void probe_client(struct fio_client *client)
{
struct cmd_client_probe_pdu pdu;
const char *sname;
uint64_t tag;
char buf[64];
dprint(FD_NET, "client: send probe\n");
#ifdef CONFIG_ZLIB
pdu.flags = __le64_to_cpu(FIO_PROBE_FLAG_ZLIB);
#else
pdu.flags = 0;
#endif
sname = server_name(client, buf, sizeof(buf));
memset(pdu.server, 0, sizeof(pdu.server));
strncpy((char *) pdu.server, sname, sizeof(pdu.server) - 1);
fio_net_send_cmd(client->fd, FIO_NET_CMD_PROBE, &pdu, sizeof(pdu), &tag, &client->cmd_list);
}
static int fio_client_connect_ip(struct fio_client *client)
{
struct sockaddr *addr;
socklen_t socklen;
int fd, domain;
if (client->ipv6) {
client->addr6.sin6_family = AF_INET6;
client->addr6.sin6_port = htons(client->port);
domain = AF_INET6;
addr = (struct sockaddr *) &client->addr6;
socklen = sizeof(client->addr6);
} else {
client->addr.sin_family = AF_INET;
client->addr.sin_port = htons(client->port);
domain = AF_INET;
addr = (struct sockaddr *) &client->addr;
socklen = sizeof(client->addr);
}
fd = socket(domain, SOCK_STREAM, 0);
if (fd < 0) {
int ret = -errno;
log_err("fio: socket: %s\n", strerror(errno));
return ret;
}
if (connect(fd, addr, socklen) < 0) {
int ret = -errno;
log_err("fio: connect: %s\n", strerror(errno));
log_err("fio: failed to connect to %s:%u\n", client->hostname,
client->port);
close(fd);
return ret;
}
return fd;
}
static int fio_client_connect_sock(struct fio_client *client)
{
struct sockaddr_un *addr = &client->addr_un;
socklen_t len;
int fd;
memset(addr, 0, sizeof(*addr));
addr->sun_family = AF_UNIX;
strncpy(addr->sun_path, client->hostname, sizeof(addr->sun_path) - 1);
fd = socket(AF_UNIX, SOCK_STREAM, 0);
if (fd < 0) {
int ret = -errno;
log_err("fio: socket: %s\n", strerror(errno));
return ret;
}
len = sizeof(addr->sun_family) + strlen(addr->sun_path) + 1;
if (connect(fd, (struct sockaddr *) addr, len) < 0) {
int ret = -errno;
log_err("fio: connect; %s\n", strerror(errno));
close(fd);
return ret;
}
return fd;
}
int fio_client_connect(struct fio_client *client)
{
int fd;
dprint(FD_NET, "client: connect to host %s\n", client->hostname);
if (client->is_sock)
fd = fio_client_connect_sock(client);
else
fd = fio_client_connect_ip(client);
dprint(FD_NET, "client: %s connected %d\n", client->hostname, fd);
if (fd < 0)
return fd;
client->fd = fd;
fio_client_add_hash(client);
client->state = Client_connected;
probe_client(client);
return 0;
}
int fio_client_terminate(struct fio_client *client)
{
return fio_net_send_quit(client->fd);
}
static 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_client_terminate(client);
}
}
static void sig_int(int sig)
{
dprint(FD_NET, "client: got signal %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);
/* Windows uses SIGBREAK as a quit signal from other applications */
#ifdef WIN32
memset(&act, 0, sizeof(act));
act.sa_handler = sig_int;
act.sa_flags = SA_RESTART;
sigaction(SIGBREAK, &act, NULL);
#endif
memset(&act, 0, sizeof(act));
act.sa_handler = sig_show_status;
act.sa_flags = SA_RESTART;
sigaction(SIGUSR1, &act, NULL);
}
static int send_client_cmd_line(struct fio_client *client)
{
struct cmd_single_line_pdu *cslp;
struct cmd_line_pdu *clp;
unsigned long offset;
unsigned int *lens;
void *pdu;
size_t mem;
int i, ret;
dprint(FD_NET, "client: send cmdline %d\n", client->argc);
lens = malloc(client->argc * sizeof(unsigned int));
/*
* Find out how much mem we need
*/
for (i = 0, mem = 0; i < client->argc; i++) {
lens[i] = strlen(client->argv[i]) + 1;
mem += lens[i];
}
/*
* We need one cmd_line_pdu, and argc number of cmd_single_line_pdu
*/
mem += sizeof(*clp) + (client->argc * sizeof(*cslp));
pdu = malloc(mem);
clp = pdu;
offset = sizeof(*clp);
for (i = 0; i < client->argc; i++) {
uint16_t arg_len = lens[i];
cslp = pdu + offset;
strcpy((char *) cslp->text, client->argv[i]);
cslp->len = cpu_to_le16(arg_len);
offset += sizeof(*cslp) + arg_len;
}
free(lens);
clp->lines = cpu_to_le16(client->argc);
clp->client_type = __cpu_to_le16(client->type);
ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOBLINE, pdu, mem, NULL, NULL);
free(pdu);
return ret;
}
int fio_clients_connect(void)
{
struct fio_client *client;
struct flist_head *entry, *tmp;
int ret;
#ifdef WIN32
WSADATA wsd;
WSAStartup(MAKEWORD(2, 2), &wsd);
#endif
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;
}
if (client->argc > 1)
send_client_cmd_line(client);
}
return !nr_clients;
}
int fio_start_client(struct fio_client *client)
{
dprint(FD_NET, "client: start %s\n", client->hostname);
return fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_RUN, 0, NULL);
}
int fio_start_all_clients(void)
{
struct fio_client *client;
struct flist_head *entry, *tmp;
int ret;
dprint(FD_NET, "client: start all\n");
fio_client_json_init();
flist_for_each_safe(entry, tmp, &client_list) {
client = flist_entry(entry, struct fio_client, list);
ret = fio_start_client(client);
if (ret) {
remove_client(client);
continue;
}
}
return flist_empty(&client_list);
}
static int __fio_client_send_remote_ini(struct fio_client *client,
const char *filename)
{
struct cmd_load_file_pdu *pdu;
size_t p_size;
int ret;
dprint(FD_NET, "send remote ini %s to %s\n", filename, client->hostname);
p_size = sizeof(*pdu) + strlen(filename) + 1;
pdu = malloc(p_size);
memset(pdu, 0, p_size);
pdu->name_len = strlen(filename);
strcpy((char *) pdu->file, filename);
pdu->client_type = cpu_to_le16((uint16_t) client->type);
client->sent_job = true;
ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_LOAD_FILE, pdu, p_size,NULL, NULL);
free(pdu);
return ret;
}
/*
* 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_local_ini(struct fio_client *client,
const char *filename)
{
struct cmd_job_pdu *pdu;
size_t p_size;
struct stat sb;
char *p;
void *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) {
ret = -errno;
log_err("fio: job file <%s> open: %s\n", filename, strerror(errno));
return ret;
}
if (fstat(fd, &sb) < 0) {
ret = -errno;
log_err("fio: job file stat: %s\n", strerror(errno));
close(fd);
return ret;
}
/*
* Add extra space for variable expansion, but doesn't guarantee.
*/
sb.st_size += OPT_LEN_MAX;
p_size = sb.st_size + sizeof(*pdu);
pdu = malloc(p_size);
buf = pdu->buf;
len = sb.st_size;
p = buf;
if (read_ini_data(fd, p, len)) {
log_err("fio: failed reading job file %s\n", filename);
close(fd);
free(pdu);
return 1;
}
pdu->buf_len = __cpu_to_le32(sb.st_size);
pdu->client_type = cpu_to_le32(client->type);
client->sent_job = true;
ret = fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, pdu, p_size, NULL, NULL);
free(pdu);
close(fd);
return ret;
}
int fio_client_send_ini(struct fio_client *client, const char *filename,
bool remote)
{
int ret;
if (!remote)
ret = __fio_client_send_local_ini(client, filename);
else
ret = __fio_client_send_remote_ini(client, filename);
if (!ret)
client->sent_job = true;
return ret;
}
static int fio_client_send_cf(struct fio_client *client,
struct client_file *cf)
{
return fio_client_send_ini(client, cf->file, cf->remote);
}
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) {
bool failed = false;
client = flist_entry(entry, struct fio_client, list);
if (client->nr_files) {
int i;
for (i = 0; i < client->nr_files; i++) {
struct client_file *cf;
cf = &client->files[i];
if (fio_client_send_cf(client, cf)) {
failed = true;
remove_client(client);
break;
}
}
}
if (client->sent_job || failed)
continue;
if (!filename || fio_client_send_ini(client, filename, 0))
remove_client(client);
}
return !nr_clients;
}
int fio_client_update_options(struct fio_client *client,
struct thread_options *o, uint64_t *tag)
{
struct cmd_add_job_pdu pdu;
pdu.thread_number = cpu_to_le32(client->thread_number);
pdu.groupid = cpu_to_le32(client->groupid);
convert_thread_options_to_net(&pdu.top, o);
return fio_net_send_cmd(client->fd, FIO_NET_CMD_UPDATE_JOB, &pdu, sizeof(pdu), tag, &client->cmd_list);
}
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->thread_number = le32_to_cpu(src->thread_number);
dst->groupid = le32_to_cpu(src->groupid);
dst->pid = le32_to_cpu(src->pid);
dst->members = le32_to_cpu(src->members);
dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
for (i = 0; i < DDIR_RWDIR_CNT; 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]);
convert_io_stat(&dst->iops_stat[i], &src->iops_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 = le32_to_cpu(src->clat_percentiles);
dst->lat_percentiles = le32_to_cpu(src->lat_percentiles);
dst->percentile_precision = le64_to_cpu(src->percentile_precision);
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] = le64_to_cpu(src->io_u_map[i]);
dst->io_u_submit[i] = le64_to_cpu(src->io_u_submit[i]);
dst->io_u_complete[i] = le64_to_cpu(src->io_u_complete[i]);
}
for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
dst->io_u_lat_n[i] = le64_to_cpu(src->io_u_lat_n[i]);
for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
dst->io_u_lat_u[i] = le64_to_cpu(src->io_u_lat_u[i]);
for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
dst->io_u_lat_m[i] = le64_to_cpu(src->io_u_lat_m[i]);
for (i = 0; i < DDIR_RWDIR_CNT; i++)
for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
dst->io_u_plat[i][j] = le64_to_cpu(src->io_u_plat[i][j]);
for (i = 0; i < DDIR_RWDIR_CNT; 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->drop_io_u[i] = le64_to_cpu(src->drop_io_u[i]);
}
dst->total_submit = le64_to_cpu(src->total_submit);
dst->total_complete = le64_to_cpu(src->total_complete);
dst->nr_zone_resets = le64_to_cpu(src->nr_zone_resets);
for (i = 0; i < DDIR_RWDIR_CNT; 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);
dst->unit_base = le32_to_cpu(src->unit_base);
dst->sig_figs = le32_to_cpu(src->sig_figs);
dst->latency_depth = le32_to_cpu(src->latency_depth);
dst->latency_target = le64_to_cpu(src->latency_target);
dst->latency_window = le64_to_cpu(src->latency_window);
dst->latency_percentile.u.f = fio_uint64_to_double(le64_to_cpu(src->latency_percentile.u.i));
dst->nr_block_infos = le64_to_cpu(src->nr_block_infos);
for (i = 0; i < dst->nr_block_infos; i++)
dst->block_infos[i] = le32_to_cpu(src->block_infos[i]);
dst->ss_dur = le64_to_cpu(src->ss_dur);
dst->ss_state = le32_to_cpu(src->ss_state);
dst->ss_head = le32_to_cpu(src->ss_head);
dst->ss_limit.u.f = fio_uint64_to_double(le64_to_cpu(src->ss_limit.u.i));
dst->ss_slope.u.f = fio_uint64_to_double(le64_to_cpu(src->ss_slope.u.i));
dst->ss_deviation.u.f = fio_uint64_to_double(le64_to_cpu(src->ss_deviation.u.i));
dst->ss_criterion.u.f = fio_uint64_to_double(le64_to_cpu(src->ss_criterion.u.i));
if (dst->ss_state & FIO_SS_DATA) {
for (i = 0; i < dst->ss_dur; i++ ) {
dst->ss_iops_data[i] = le64_to_cpu(src->ss_iops_data[i]);
dst->ss_bw_data[i] = le64_to_cpu(src->ss_bw_data[i]);
}
}
dst->cachehit = le64_to_cpu(src->cachehit);
dst->cachemiss = le64_to_cpu(src->cachemiss);
}
static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
{
int i;
for (i = 0; i < DDIR_RWDIR_CNT; 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->iobytes[i] = le64_to_cpu(src->iobytes[i]);
dst->agg[i] = le64_to_cpu(src->agg[i]);
}
dst->kb_base = le32_to_cpu(src->kb_base);
dst->unit_base = le32_to_cpu(src->unit_base);
dst->sig_figs = le32_to_cpu(src->sig_figs);
dst->groupid = le32_to_cpu(src->groupid);
dst->unified_rw_rep = le32_to_cpu(src->unified_rw_rep);
}
static void json_object_add_client_info(struct json_object *obj,
struct fio_client *client)
{
const char *hostname = client->hostname ? client->hostname : "";
json_object_add_value_string(obj, "hostname", hostname);
json_object_add_value_int(obj, "port", client->port);
}
static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
{
struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
struct flist_head *opt_list = NULL;
struct json_object *tsobj;
if (client->opt_lists && p->ts.thread_number <= client->jobs)
opt_list = &client->opt_lists[p->ts.thread_number - 1];
tsobj = show_thread_status(&p->ts, &p->rs, opt_list, &client->buf);
client->did_stat = true;
if (tsobj) {
json_object_add_client_info(tsobj, client);
json_array_add_value_object(clients_array, tsobj);
}
if (sum_stat_clients <= 1)
return;
sum_thread_stats(&client_ts, &p->ts, sum_stat_nr == 1);
sum_group_stats(&client_gs, &p->rs);
client_ts.members++;
client_ts.thread_number = p->ts.thread_number;
client_ts.groupid = p->ts.groupid;
client_ts.unified_rw_rep = p->ts.unified_rw_rep;
client_ts.sig_figs = p->ts.sig_figs;
if (++sum_stat_nr == sum_stat_clients) {
strcpy(client_ts.name, "All clients");
tsobj = show_thread_status(&client_ts, &client_gs, NULL, &client->buf);
if (tsobj) {
json_object_add_client_info(tsobj, client);
json_array_add_value_object(clients_array, tsobj);
}
}
}
static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
{
struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
if (output_format & FIO_OUTPUT_NORMAL)
show_group_stats(gs, &client->buf);
}
static void handle_job_opt(struct fio_client *client, struct fio_net_cmd *cmd)
{
struct cmd_job_option *pdu = (struct cmd_job_option *) cmd->payload;
struct print_option *p;
if (!job_opt_object)
return;
pdu->global = le16_to_cpu(pdu->global);
pdu->truncated = le16_to_cpu(pdu->truncated);
pdu->groupid = le32_to_cpu(pdu->groupid);
p = malloc(sizeof(*p));
p->name = strdup((char *) pdu->name);
if (pdu->value[0] != '\0')
p->value = strdup((char *) pdu->value);
else
p->value = NULL;
if (pdu->global) {
const char *pos = "";
if (p->value)
pos = p->value;
json_object_add_value_string(job_opt_object, p->name, pos);
} else if (client->opt_lists) {
struct flist_head *opt_list = &client->opt_lists[pdu->groupid];
flist_add_tail(&p->list, opt_list);
}
}
static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
{
struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
const char *buf = (const char *) pdu->buf;
const char *name;
int fio_unused ret;
struct buf_output out;
buf_output_init(&out);
name = client->name ? client->name : client->hostname;
if (!client->skip_newline && !(output_format & FIO_OUTPUT_TERSE))
__log_buf(&out, "<%s> ", name);
__log_buf(&out, "%s", buf);
log_info_buf(out.buf, out.buflen);
buf_output_free(&out);
client->skip_newline = strchr(buf, '\n') == NULL;
}
static void convert_agg(struct disk_util_agg *agg)
{
int i;
for (i = 0; i < 2; i++) {
agg->ios[i] = le64_to_cpu(agg->ios[i]);
agg->merges[i] = le64_to_cpu(agg->merges[i]);
agg->sectors[i] = le64_to_cpu(agg->sectors[i]);
agg->ticks[i] = le64_to_cpu(agg->ticks[i]);
}
agg->io_ticks = le64_to_cpu(agg->io_ticks);
agg->time_in_queue = le64_to_cpu(agg->time_in_queue);
agg->slavecount = le32_to_cpu(agg->slavecount);
agg->max_util.u.f = fio_uint64_to_double(le64_to_cpu(agg->max_util.u.i));
}
static void convert_dus(struct disk_util_stat *dus)
{
int i;
for (i = 0; i < 2; i++) {
dus->s.ios[i] = le64_to_cpu(dus->s.ios[i]);
dus->s.merges[i] = le64_to_cpu(dus->s.merges[i]);
dus->s.sectors[i] = le64_to_cpu(dus->s.sectors[i]);
dus->s.ticks[i] = le64_to_cpu(dus->s.ticks[i]);
}
dus->s.io_ticks = le64_to_cpu(dus->s.io_ticks);
dus->s.time_in_queue = le64_to_cpu(dus->s.time_in_queue);
dus->s.msec = le64_to_cpu(dus->s.msec);
}
static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
{
struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
if (!client->disk_stats_shown)
client->disk_stats_shown = true;
if (output_format & FIO_OUTPUT_JSON) {
struct json_object *duobj;
json_array_add_disk_util(&du->dus, &du->agg, du_array);
duobj = json_array_last_value_object(du_array);
json_object_add_client_info(duobj, client);
} else if (output_format & FIO_OUTPUT_TERSE)
print_disk_util(&du->dus, &du->agg, 1, &client->buf);
else if (output_format & FIO_OUTPUT_NORMAL) {
__log_buf(&client->buf, "\nDisk stats (read/write):\n");
print_disk_util(&du->dus, &du->agg, 0, &client->buf);
}
}
static void convert_jobs_eta(struct jobs_eta *je)
{
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->nr_setting_up = le32_to_cpu(je->nr_setting_up);
je->files_open = le32_to_cpu(je->files_open);
for (i = 0; i < DDIR_RWDIR_CNT; i++) {
je->m_rate[i] = le64_to_cpu(je->m_rate[i]);
je->t_rate[i] = le64_to_cpu(je->t_rate[i]);
je->m_iops[i] = le32_to_cpu(je->m_iops[i]);
je->t_iops[i] = le32_to_cpu(je->t_iops[i]);
je->rate[i] = le64_to_cpu(je->rate[i]);
je->iops[i] = le32_to_cpu(je->iops[i]);
}
je->elapsed_sec = le64_to_cpu(je->elapsed_sec);
je->eta_sec = le64_to_cpu(je->eta_sec);
je->nr_threads = le32_to_cpu(je->nr_threads);
je->is_pow2 = le32_to_cpu(je->is_pow2);
je->unit_base = le32_to_cpu(je->unit_base);
je->sig_figs = le32_to_cpu(je->sig_figs);
}
void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
{
int i;
dst->nr_running += je->nr_running;
dst->nr_ramp += je->nr_ramp;
dst->nr_pending += je->nr_pending;
dst->nr_setting_up += je->nr_setting_up;
dst->files_open += je->files_open;
for (i = 0; i < DDIR_RWDIR_CNT; i++) {
dst->m_rate[i] += je->m_rate[i];
dst->t_rate[i] += je->t_rate[i];
dst->m_iops[i] += je->m_iops[i];
dst->t_iops[i] += je->t_iops[i];
dst->rate[i] += je->rate[i];
dst->iops[i] += je->iops[i];
}
dst->elapsed_sec += je->elapsed_sec;
if (je->eta_sec > dst->eta_sec)
dst->eta_sec = je->eta_sec;
dst->nr_threads += je->nr_threads;
/*
* This wont be correct for multiple strings, but at least it
* works for the basic cases.
*/
strcpy((char *) dst->run_str, (char *) je->run_str);
}
static bool remove_reply_cmd(struct fio_client *client, struct fio_net_cmd *cmd)
{
struct fio_net_cmd_reply *reply = NULL;
struct flist_head *entry;
flist_for_each(entry, &client->cmd_list) {
reply = flist_entry(entry, struct fio_net_cmd_reply, list);
if (cmd->tag == (uintptr_t) reply)
break;
reply = NULL;
}
if (!reply) {
log_err("fio: client: unable to find matching tag (%llx)\n", (unsigned long long) cmd->tag);
return false;
}
flist_del(&reply->list);
cmd->tag = reply->saved_tag;
free(reply);
return true;
}
int fio_client_wait_for_reply(struct fio_client *client, uint64_t tag)
{
do {
struct fio_net_cmd_reply *reply = NULL;
struct flist_head *entry;
flist_for_each(entry, &client->cmd_list) {
reply = flist_entry(entry, struct fio_net_cmd_reply, list);
if (tag == (uintptr_t) reply)
break;
reply = NULL;
}
if (!reply)
break;
usleep(1000);
} while (1);
return 0;
}
static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
{
struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
struct client_eta *eta = (struct client_eta *) (uintptr_t) cmd->tag;
dprint(FD_NET, "client: got eta tag %p, %d\n", eta, eta->pending);
assert(client->eta_in_flight == eta);
client->eta_in_flight = NULL;
flist_del_init(&client->eta_list);
client->eta_timeouts = 0;
if (client->ops->jobs_eta)
client->ops->jobs_eta(client, je);
fio_client_sum_jobs_eta(&eta->eta, je);
fio_client_dec_jobs_eta(eta, client->ops->eta);
}
static void client_flush_hist_samples(FILE *f, int hist_coarseness, void *samples,
uint64_t sample_size)
{
struct io_sample *s;
int log_offset;
uint64_t i, j, nr_samples;
struct io_u_plat_entry *entry;
uint64_t *io_u_plat;
int stride = 1 << hist_coarseness;
if (!sample_size)
return;
s = __get_sample(samples, 0, 0);
log_offset = (s->__ddir & LOG_OFFSET_SAMPLE_BIT) != 0;
nr_samples = sample_size / __log_entry_sz(log_offset);
for (i = 0; i < nr_samples; i++) {
s = (struct io_sample *)((char *)__get_sample(samples, log_offset, i) +
i * sizeof(struct io_u_plat_entry));
entry = s->data.plat_entry;
io_u_plat = entry->io_u_plat;
fprintf(f, "%lu, %u, %llu, ", (unsigned long) s->time,
io_sample_ddir(s), (unsigned long long) s->bs);
for (j = 0; j < FIO_IO_U_PLAT_NR - stride; j += stride) {
fprintf(f, "%llu, ", (unsigned long long)hist_sum(j, stride, io_u_plat, NULL));
}
fprintf(f, "%llu\n", (unsigned long long)
hist_sum(FIO_IO_U_PLAT_NR - stride, stride, io_u_plat, NULL));
}
}
static int fio_client_handle_iolog(struct fio_client *client,
struct fio_net_cmd *cmd)
{
struct cmd_iolog_pdu *pdu = NULL;
bool store_direct;
char *log_pathname = NULL;
int ret = 0;
pdu = convert_iolog(cmd, &store_direct);
if (!pdu) {
log_err("fio: failed converting IO log\n");
ret = 1;
goto out;
}
/* allocate buffer big enough for next sprintf() call */
log_pathname = malloc(10 + strlen((char *)pdu->name) +
strlen(client->hostname));
if (!log_pathname) {
log_err("fio: memory allocation of unique pathname failed\n");
ret = -1;
goto out;
}
/* generate a unique pathname for the log file using hostname */
sprintf(log_pathname, "%s.%s", pdu->name, client->hostname);
if (store_direct) {
ssize_t wrote;
size_t sz;
int fd;
fd = open((const char *) log_pathname,
O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (fd < 0) {
log_err("fio: open log %s: %s\n",
log_pathname, strerror(errno));
ret = 1;
goto out;
}
sz = cmd->pdu_len - sizeof(*pdu);
wrote = write(fd, pdu->samples, sz);
close(fd);
if (wrote != sz) {
log_err("fio: short write on compressed log\n");
ret = 1;
goto out;
}
ret = 0;
} else {
FILE *f;
f = fopen((const char *) log_pathname, "w");
if (!f) {
log_err("fio: fopen log %s : %s\n",
log_pathname, strerror(errno));
ret = 1;
goto out;
}
if (pdu->log_type == IO_LOG_TYPE_HIST) {
client_flush_hist_samples(f, pdu->log_hist_coarseness, pdu->samples,
pdu->nr_samples * sizeof(struct io_sample));
} else {
flush_samples(f, pdu->samples,
pdu->nr_samples * sizeof(struct io_sample));
}
fclose(f);
ret = 0;
}
out:
if (pdu && pdu != (void *) cmd->payload)
free(pdu);
if (log_pathname)
free(log_pathname);
return ret;
}
static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
{
struct cmd_probe_reply_pdu *probe = (struct cmd_probe_reply_pdu *) cmd->payload;
const char *os, *arch;
char bit[16];
os = fio_get_os_string(probe->os);
if (!os)
os = "unknown";
arch = fio_get_arch_string(probe->arch);
if (!arch)
os = "unknown";
sprintf(bit, "%d-bit", probe->bpp * 8);
probe->flags = le64_to_cpu(probe->flags);
if (output_format & FIO_OUTPUT_NORMAL) {
log_info("hostname=%s, be=%u, %s, os=%s, arch=%s, fio=%s, flags=%lx\n",
probe->hostname, probe->bigendian, bit, os, arch,
probe->fio_version, (unsigned long) probe->flags);
}
if (!client->name)
client->name = strdup((char *) probe->hostname);
}
static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
{
struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
client->state = Client_started;
client->jobs = le32_to_cpu(pdu->jobs);
client->nr_stat = le32_to_cpu(pdu->stat_outputs);
if (client->jobs) {
int i;
if (client->opt_lists)
free(client->opt_lists);
client->opt_lists = malloc(client->jobs * sizeof(struct flist_head));
for (i = 0; i < client->jobs; i++)
INIT_FLIST_HEAD(&client->opt_lists[i]);
}
sum_stat_clients += client->nr_stat;
}
static void handle_stop(struct fio_client *client)
{
if (client->error)
log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
}
static void convert_stop(struct fio_net_cmd *cmd)
{
struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
pdu->error = le32_to_cpu(pdu->error);
}
static void convert_text(struct fio_net_cmd *cmd)
{
struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
pdu->level = le32_to_cpu(pdu->level);
pdu->buf_len = le32_to_cpu(pdu->buf_len);
pdu->log_sec = le64_to_cpu(pdu->log_sec);
pdu->log_usec = le64_to_cpu(pdu->log_usec);
}
static struct cmd_iolog_pdu *convert_iolog_gz(struct fio_net_cmd *cmd,
struct cmd_iolog_pdu *pdu)
{
#ifdef CONFIG_ZLIB
struct cmd_iolog_pdu *ret;
z_stream stream;
uint64_t nr_samples;
size_t total;
char *p;
stream.zalloc = Z_NULL;
stream.zfree = Z_NULL;
stream.opaque = Z_NULL;
stream.avail_in = 0;
stream.next_in = Z_NULL;
if (inflateInit(&stream) != Z_OK)
return NULL;
/*
* Get header first, it's not compressed
*/
nr_samples = le64_to_cpu(pdu->nr_samples);
if (pdu->log_type == IO_LOG_TYPE_HIST)
total = nr_samples * (__log_entry_sz(le32_to_cpu(pdu->log_offset)) +
sizeof(struct io_u_plat_entry));
else
total = nr_samples * __log_entry_sz(le32_to_cpu(pdu->log_offset));
ret = malloc(total + sizeof(*pdu));
ret->nr_samples = nr_samples;
memcpy(ret, pdu, sizeof(*pdu));
p = (char *) ret + sizeof(*pdu);
stream.avail_in = cmd->pdu_len - sizeof(*pdu);
stream.next_in = (void *)((char *) pdu + sizeof(*pdu));
while (stream.avail_in) {
unsigned int this_chunk = 65536;
unsigned int this_len;
int err;
if (this_chunk > total)
this_chunk = total;
stream.avail_out = this_chunk;
stream.next_out = (void *)p;
err = inflate(&stream, Z_NO_FLUSH);
/* may be Z_OK, or Z_STREAM_END */
if (err < 0) {
/*
* Z_STREAM_ERROR and Z_BUF_ERROR can safely be
* ignored */
if (err == Z_STREAM_ERROR || err == Z_BUF_ERROR)
break;
log_err("fio: inflate error %d\n", err);
free(ret);
ret = NULL;
goto err;
}
this_len = this_chunk - stream.avail_out;
p += this_len;
total -= this_len;
}
err:
inflateEnd(&stream);
return ret;
#else
return NULL;
#endif
}
/*
* This has been compressed on the server side, since it can be big.
* Uncompress here.
*/
static struct cmd_iolog_pdu *convert_iolog(struct fio_net_cmd *cmd,
bool *store_direct)
{
struct cmd_iolog_pdu *pdu = (struct cmd_iolog_pdu *) cmd->payload;
struct cmd_iolog_pdu *ret;
uint64_t i;
int compressed;
void *samples;
*store_direct = false;
/*
* Convert if compressed and we support it. If it's not
* compressed, we need not do anything.
*/
compressed = le32_to_cpu(pdu->compressed);
if (compressed == XMIT_COMPRESSED) {
#ifndef CONFIG_ZLIB
log_err("fio: server sent compressed data by mistake\n");
return NULL;
#endif
ret = convert_iolog_gz(cmd, pdu);
if (!ret) {
log_err("fio: failed decompressing log\n");
return NULL;
}
} else if (compressed == STORE_COMPRESSED) {
*store_direct = true;
ret = pdu;
} else
ret = pdu;
ret->nr_samples = le64_to_cpu(ret->nr_samples);
ret->thread_number = le32_to_cpu(ret->thread_number);
ret->log_type = le32_to_cpu(ret->log_type);
ret->compressed = le32_to_cpu(ret->compressed);
ret->log_offset = le32_to_cpu(ret->log_offset);
ret->log_hist_coarseness = le32_to_cpu(ret->log_hist_coarseness);
if (*store_direct)
return ret;
samples = &ret->samples[0];
for (i = 0; i < ret->nr_samples; i++) {
struct io_sample *s;
s = __get_sample(samples, ret->log_offset, i);
if (ret->log_type == IO_LOG_TYPE_HIST)
s = (struct io_sample *)((char *)s + sizeof(struct io_u_plat_entry) * i);
s->time = le64_to_cpu(s->time);
s->data.val = le64_to_cpu(s->data.val);
s->__ddir = le32_to_cpu(s->__ddir);
s->bs = le64_to_cpu(s->bs);
if (ret->log_offset) {
struct io_sample_offset *so = (void *) s;
so->offset = le64_to_cpu(so->offset);
}
if (ret->log_type == IO_LOG_TYPE_HIST) {
s->data.plat_entry = (struct io_u_plat_entry *)(((char *)s) + sizeof(*s));
s->data.plat_entry->list.next = NULL;
s->data.plat_entry->list.prev = NULL;
}
}
return ret;
}
static void sendfile_reply(int fd, struct cmd_sendfile_reply *rep,
size_t size, uint64_t tag)
{
rep->error = cpu_to_le32(rep->error);
fio_net_send_cmd(fd, FIO_NET_CMD_SENDFILE, rep, size, &tag, NULL);
}
static int fio_send_file(struct fio_client *client, struct cmd_sendfile *pdu,
uint64_t tag)
{
struct cmd_sendfile_reply *rep;
struct stat sb;
size_t size;
int fd;
size = sizeof(*rep);
rep = malloc(size);
if (stat((char *)pdu->path, &sb) < 0) {
fail:
rep->error = errno;
sendfile_reply(client->fd, rep, size, tag);
free(rep);
return 1;
}
size += sb.st_size;
rep = realloc(rep, size);
rep->size = cpu_to_le32((uint32_t) sb.st_size);
fd = open((char *)pdu->path, O_RDONLY);
if (fd == -1 )
goto fail;
rep->error = read_data(fd, &rep->data, sb.st_size);
sendfile_reply(client->fd, rep, size, tag);
free(rep);
close(fd);
return 0;
}
int fio_handle_client(struct fio_client *client)
{
struct client_ops *ops = client->ops;
struct fio_net_cmd *cmd;
int size;
dprint(FD_NET, "client: handle %s\n", client->hostname);
cmd = fio_net_recv_cmd(client->fd, true);
if (!cmd)
return 0;
dprint(FD_NET, "client: got cmd op %s from %s (pdu=%u)\n",
fio_server_op(cmd->opcode), client->hostname, cmd->pdu_len);
client->last_cmd = cmd->opcode;
switch (cmd->opcode) {
case FIO_NET_CMD_QUIT:
if (ops->quit)
ops->quit(client, cmd);
remove_client(client);
break;
case FIO_NET_CMD_TEXT:
convert_text(cmd);
ops->text(client, cmd);
break;
case FIO_NET_CMD_DU: {
struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
convert_dus(&du->dus);
convert_agg(&du->agg);
ops->disk_util(client, cmd);
break;
}
case FIO_NET_CMD_TS: {
struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
dprint(FD_NET, "client: ts->ss_state = %u\n", (unsigned int) le32_to_cpu(p->ts.ss_state));
if (le32_to_cpu(p->ts.ss_state) & FIO_SS_DATA) {
dprint(FD_NET, "client: received steadystate ring buffers\n");
size = le64_to_cpu(p->ts.ss_dur);
p->ts.ss_iops_data = (uint64_t *) ((struct cmd_ts_pdu *)cmd->payload + 1);
p->ts.ss_bw_data = p->ts.ss_iops_data + size;
}
convert_ts(&p->ts, &p->ts);
convert_gs(&p->rs, &p->rs);
ops->thread_status(client, cmd);
break;
}
case FIO_NET_CMD_GS: {
struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
convert_gs(gs, gs);
ops->group_stats(client, cmd);
break;
}
case FIO_NET_CMD_ETA: {
struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
if (!remove_reply_cmd(client, cmd))
break;
convert_jobs_eta(je);
handle_eta(client, cmd);
break;
}
case FIO_NET_CMD_PROBE:
remove_reply_cmd(client, cmd);
ops->probe(client, cmd);
break;
case FIO_NET_CMD_SERVER_START:
client->state = Client_running;
if (ops->job_start)
ops->job_start(client, cmd);
break;
case FIO_NET_CMD_START: {
struct cmd_start_pdu *pdu = (struct cmd_start_pdu *) cmd->payload;
pdu->jobs = le32_to_cpu(pdu->jobs);
ops->start(client, cmd);
break;
}
case FIO_NET_CMD_STOP: {
struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
convert_stop(cmd);
client->state = Client_stopped;
client->error = le32_to_cpu(pdu->error);
client->signal = le32_to_cpu(pdu->signal);
ops->stop(client);
break;
}
case FIO_NET_CMD_ADD_JOB: {
struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
client->thread_number = le32_to_cpu(pdu->thread_number);
client->groupid = le32_to_cpu(pdu->groupid);
if (ops->add_job)
ops->add_job(client, cmd);
break;
}
case FIO_NET_CMD_IOLOG:
fio_client_handle_iolog(client, cmd);
break;
case FIO_NET_CMD_UPDATE_JOB:
ops->update_job(client, cmd);
remove_reply_cmd(client, cmd);
break;
case FIO_NET_CMD_VTRIGGER: {
struct all_io_list *pdu = (struct all_io_list *) cmd->payload;
char buf[128];
int off = 0;
if (aux_path) {
strcpy(buf, aux_path);
off = strlen(buf);
}
__verify_save_state(pdu, server_name(client, &buf[off], sizeof(buf) - off));
exec_trigger(trigger_cmd);
break;
}
case FIO_NET_CMD_SENDFILE: {
struct cmd_sendfile *pdu = (struct cmd_sendfile *) cmd->payload;
fio_send_file(client, pdu, cmd->tag);
break;
}
case FIO_NET_CMD_JOB_OPT: {
handle_job_opt(client, cmd);
break;
}
default:
log_err("fio: unknown client op: %s\n", fio_server_op(cmd->opcode));
break;
}
free(cmd);
return 1;
}
int fio_clients_send_trigger(const char *cmd)
{
struct flist_head *entry;
struct fio_client *client;
size_t slen;
dprint(FD_NET, "client: send vtrigger: %s\n", cmd);
if (!cmd)
slen = 0;
else
slen = strlen(cmd);
flist_for_each(entry, &client_list) {
struct cmd_vtrigger_pdu *pdu;
client = flist_entry(entry, struct fio_client, list);
pdu = malloc(sizeof(*pdu) + slen);
pdu->len = cpu_to_le16((uint16_t) slen);
if (slen)
memcpy(pdu->cmd, cmd, slen);
fio_net_send_cmd(client->fd, FIO_NET_CMD_VTRIGGER, pdu,
sizeof(*pdu) + slen, NULL, NULL);
free(pdu);
}
return 0;
}
static void request_client_etas(struct client_ops *ops)
{
struct fio_client *client;
struct flist_head *entry;
struct client_eta *eta;
int skipped = 0;
if (eta_print == FIO_ETA_NEVER)
return;
dprint(FD_NET, "client: request eta (%d)\n", nr_clients);
eta = calloc(1, sizeof(*eta) + __THREAD_RUNSTR_SZ(REAL_MAX_JOBS));
eta->pending = nr_clients;
flist_for_each(entry, &client_list) {
client = flist_entry(entry, struct fio_client, list);
if (!flist_empty(&client->eta_list)) {
skipped++;
continue;
}
if (client->state != Client_running)
continue;
assert(!client->eta_in_flight);
flist_add_tail(&client->eta_list, &eta_list);
client->eta_in_flight = eta;
fio_net_send_simple_cmd(client->fd, FIO_NET_CMD_SEND_ETA,
(uintptr_t) eta, &client->cmd_list);
}
while (skipped--) {
if (!fio_client_dec_jobs_eta(eta, ops->eta))
break;
}
dprint(FD_NET, "client: requested eta tag %p\n", eta);
}
/*
* A single SEND_ETA timeout isn't fatal. Attempt to recover.
*/
static int handle_cmd_timeout(struct fio_client *client,
struct fio_net_cmd_reply *reply)
{
uint16_t reply_opcode = reply->opcode;
flist_del(&reply->list);
free(reply);
if (reply_opcode != FIO_NET_CMD_SEND_ETA)
return 1;
log_info("client <%s>: timeout on SEND_ETA\n", client->hostname);
flist_del_init(&client->eta_list);
if (client->eta_in_flight) {
fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
client->eta_in_flight = NULL;
}
/*
* If we fail 5 in a row, give up...
*/
if (client->eta_timeouts++ > 5)
return 1;
return 0;
}
static int client_check_cmd_timeout(struct fio_client *client,
struct timespec *now)
{
struct fio_net_cmd_reply *reply;
struct flist_head *entry, *tmp;
int ret = 0;
flist_for_each_safe(entry, tmp, &client->cmd_list) {
unsigned int op;
reply = flist_entry(entry, struct fio_net_cmd_reply, list);
if (mtime_since(&reply->ts, now) < FIO_NET_CLIENT_TIMEOUT)
continue;
op = reply->opcode;
if (!handle_cmd_timeout(client, reply))
continue;
log_err("fio: client %s, timeout on cmd %s\n", client->hostname,
fio_server_op(op));
ret = 1;
}
return flist_empty(&client->cmd_list) && ret;
}
static int fio_check_clients_timed_out(void)
{
struct fio_client *client;
struct flist_head *entry, *tmp;
struct timespec ts;
int ret = 0;
fio_gettime(&ts, NULL);
flist_for_each_safe(entry, tmp, &client_list) {
client = flist_entry(entry, struct fio_client, list);
if (flist_empty(&client->cmd_list))
continue;
if (!client_check_cmd_timeout(client, &ts))
continue;
if (client->ops->timed_out)
client->ops->timed_out(client);
else
log_err("fio: client %s timed out\n", client->hostname);
if (client->last_cmd != FIO_NET_CMD_VTRIGGER)
client->error = ETIMEDOUT;
else
log_info("fio: ignoring timeout due to vtrigger\n");
remove_client(client);
ret = 1;
}
return ret;
}
int fio_handle_clients(struct client_ops *ops)
{
struct pollfd *pfds;
int i, ret = 0, retval = 0;
fio_gettime(&eta_ts, NULL);
pfds = malloc(nr_clients * sizeof(struct pollfd));
init_thread_stat(&client_ts);
init_group_run_stat(&client_gs);
while (!exit_backend && nr_clients) {
struct flist_head *entry, *tmp;
struct fio_client *client;
i = 0;
flist_for_each_safe(entry, tmp, &client_list) {
client = flist_entry(entry, struct fio_client, list);
if (!client->sent_job && !client->ops->stay_connected &&
flist_empty(&client->cmd_list)) {
remove_client(client);
continue;
}
pfds[i].fd = client->fd;
pfds[i].events = POLLIN;
i++;
}
if (!nr_clients)
break;
assert(i == nr_clients);
do {
struct timespec ts;
int timeout;
fio_gettime(&ts, NULL);
if (eta_time_within_slack(mtime_since(&eta_ts, &ts))) {
request_client_etas(ops);
memcpy(&eta_ts, &ts, sizeof(ts));
if (fio_check_clients_timed_out())
break;
}
check_trigger_file();
timeout = min(100u, ops->eta_msec);
ret = poll(pfds, nr_clients, timeout);
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 %ld\n", (long) pfds[i].fd);
continue;
}
if (!fio_handle_client(client)) {
log_info("client: host=%s disconnected\n",
client->hostname);
remove_client(client);
retval = 1;
} else if (client->error)
retval = 1;
fio_put_client(client);
}
}
fio_client_json_fini();
free(pfds);
return retval || error_clients;
}
static void client_display_thread_status(struct jobs_eta *je)
{
if (!(output_format & FIO_OUTPUT_JSON))
display_thread_status(je);
}