8 #include <sys/socket.h>
12 #include <netinet/in.h>
13 #include <arpa/inet.h>
24 #include "crc/crc16.h"
25 #include "lib/ieee754.h"
26 #include "verify-state.h"
29 int fio_net_port = FIO_NET_PORT;
31 bool exit_backend = false;
42 struct flist_head list; /* link on sk_out->list */
43 int flags; /* SK_F_* */
44 int opcode; /* Actual command fields */
48 struct flist_head next; /* Other sk_entry's, if linked command */
51 static char *fio_server_arg;
52 static char *bind_sock;
53 static struct sockaddr_in saddr_in;
54 static struct sockaddr_in6 saddr_in6;
57 static unsigned int has_zlib = 1;
59 static unsigned int has_zlib = 0;
61 static unsigned int use_zlib;
64 static pthread_key_t sk_out_key;
67 static char *fio_server_pipe_name = NULL;
68 static HANDLE hjob = INVALID_HANDLE_VALUE;
78 struct fio_fork_item {
79 struct flist_head list;
84 struct ffi_element element;
97 static const char *fio_server_ops[FIO_NET_CMD_NR] = {
123 static void sk_lock(struct sk_out *sk_out)
125 fio_sem_down(&sk_out->lock);
128 static void sk_unlock(struct sk_out *sk_out)
130 fio_sem_up(&sk_out->lock);
133 void sk_out_assign(struct sk_out *sk_out)
141 pthread_setspecific(sk_out_key, sk_out);
144 static void sk_out_free(struct sk_out *sk_out)
146 __fio_sem_remove(&sk_out->lock);
147 __fio_sem_remove(&sk_out->wait);
148 __fio_sem_remove(&sk_out->xmit);
152 static int __sk_out_drop(struct sk_out *sk_out)
158 assert(sk_out->refs != 0);
159 refs = --sk_out->refs;
164 pthread_setspecific(sk_out_key, NULL);
172 void sk_out_drop(void)
174 struct sk_out *sk_out;
176 sk_out = pthread_getspecific(sk_out_key);
177 __sk_out_drop(sk_out);
180 static void __fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
181 uint32_t pdu_len, uint64_t tag)
183 memset(cmd, 0, sizeof(*cmd));
185 cmd->version = __cpu_to_le16(FIO_SERVER_VER);
186 cmd->opcode = cpu_to_le16(opcode);
187 cmd->tag = cpu_to_le64(tag);
188 cmd->pdu_len = cpu_to_le32(pdu_len);
192 static void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode,
193 const void *pdu, uint32_t pdu_len, uint64_t tag)
195 __fio_init_net_cmd(cmd, opcode, pdu_len, tag);
198 memcpy(&cmd->payload, pdu, pdu_len);
201 const char *fio_server_op(unsigned int op)
205 if (op < FIO_NET_CMD_NR)
206 return fio_server_ops[op];
208 sprintf(buf, "UNKNOWN/%d", op);
212 static ssize_t iov_total_len(const struct iovec *iov, int count)
224 static int fio_sendv_data(int sk, struct iovec *iov, int count)
226 ssize_t total_len = iov_total_len(iov, count);
230 ret = writev(sk, iov, count);
237 if (ret >= iov->iov_len) {
242 iov->iov_base += ret;
248 else if (errno == EAGAIN || errno == EINTR)
252 } while (!exit_backend);
260 static int fio_send_data(int sk, const void *p, unsigned int len)
262 struct iovec iov = { .iov_base = (void *) p, .iov_len = len };
264 assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU);
266 return fio_sendv_data(sk, &iov, 1);
269 bool fio_server_poll_fd(int fd, short events, int timeout) {
270 struct pollfd pfd = {
276 ret = poll(&pfd, 1, timeout);
280 log_err("fio: poll: %s\n", strerror(errno));
285 if (pfd.revents & events)
290 static int fio_recv_data(int sk, void *buf, unsigned int len, bool wait)
298 flags = OS_MSG_DONTWAIT;
301 int ret = recv(sk, p, len, flags);
311 else if (errno == EAGAIN || errno == EINTR) {
317 } while (!exit_backend);
325 static int verify_convert_cmd(struct fio_net_cmd *cmd)
329 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
330 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
332 crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
333 if (crc != cmd->cmd_crc16) {
334 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
335 cmd->cmd_crc16, crc);
336 fprintf(f_err, "fio: server bad crc on command (got %x, wanted %x)\n",
337 cmd->cmd_crc16, crc);
341 cmd->version = le16_to_cpu(cmd->version);
342 cmd->opcode = le16_to_cpu(cmd->opcode);
343 cmd->flags = le32_to_cpu(cmd->flags);
344 cmd->tag = le64_to_cpu(cmd->tag);
345 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
347 switch (cmd->version) {
351 log_err("fio: bad server cmd version %d\n", cmd->version);
352 fprintf(f_err, "fio: client/server version mismatch (%d != %d)\n",
353 cmd->version, FIO_SERVER_VER);
357 if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) {
358 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
366 * Read (and defragment, if necessary) incoming commands
368 struct fio_net_cmd *fio_net_recv_cmd(int sk, bool wait)
370 struct fio_net_cmd cmd, *tmp, *cmdret = NULL;
371 size_t cmd_size = 0, pdu_offset = 0;
377 ret = fio_recv_data(sk, &cmd, sizeof(cmd), wait);
381 /* We have a command, verify it and swap if need be */
382 ret = verify_convert_cmd(&cmd);
387 /* if this is text, add room for \0 at the end */
388 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
391 cmd_size += cmd.pdu_len;
393 if (cmd_size / 1024 > FIO_SERVER_MAX_CMD_MB * 1024) {
394 log_err("fio: cmd+pdu too large (%llu)\n", (unsigned long long) cmd_size);
399 tmp = realloc(cmdret, cmd_size);
401 log_err("fio: server failed allocating cmd\n");
408 memcpy(cmdret, &cmd, sizeof(cmd));
409 else if (cmdret->opcode != cmd.opcode) {
410 log_err("fio: fragment opcode mismatch (%d != %d)\n",
411 cmdret->opcode, cmd.opcode);
419 /* There's payload, get it */
420 pdu = (char *) cmdret->payload + pdu_offset;
421 ret = fio_recv_data(sk, pdu, cmd.pdu_len, wait);
425 /* Verify payload crc */
426 crc = fio_crc16(pdu, cmd.pdu_len);
427 if (crc != cmd.pdu_crc16) {
428 log_err("fio: server bad crc on payload ");
429 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
434 pdu_offset += cmd.pdu_len;
436 cmdret->pdu_len += cmd.pdu_len;
438 } while (cmd.flags & FIO_NET_CMD_F_MORE);
444 /* zero-terminate text input */
445 if (cmdret->pdu_len) {
446 if (cmdret->opcode == FIO_NET_CMD_TEXT) {
447 struct cmd_text_pdu *__pdu = (struct cmd_text_pdu *) cmdret->payload;
448 char *buf = (char *) __pdu->buf;
449 int len = le32_to_cpu(__pdu->buf_len);
452 } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
453 struct cmd_job_pdu *__pdu = (struct cmd_job_pdu *) cmdret->payload;
454 char *buf = (char *) __pdu->buf;
455 int len = le32_to_cpu(__pdu->buf_len);
461 /* frag flag is internal */
462 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
468 static void add_reply(uint64_t tag, struct flist_head *list)
470 struct fio_net_cmd_reply *reply;
472 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
473 flist_add_tail(&reply->list, list);
476 static uint64_t alloc_reply(uint64_t tag, uint16_t opcode)
478 struct fio_net_cmd_reply *reply;
480 reply = calloc(1, sizeof(*reply));
481 INIT_FLIST_HEAD(&reply->list);
482 fio_gettime(&reply->ts, NULL);
483 reply->saved_tag = tag;
484 reply->opcode = opcode;
486 return (uintptr_t) reply;
489 static void free_reply(uint64_t tag)
491 struct fio_net_cmd_reply *reply;
493 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
497 static void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
501 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
503 pdu_len = le32_to_cpu(cmd->pdu_len);
504 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
507 static void fio_net_cmd_crc(struct fio_net_cmd *cmd)
509 fio_net_cmd_crc_pdu(cmd, cmd->payload);
512 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
513 uint64_t *tagptr, struct flist_head *list)
515 struct fio_net_cmd *cmd = NULL;
516 size_t this_len, cur_len = 0;
522 tag = *tagptr = alloc_reply(*tagptr, opcode);
524 tag = tagptr ? *tagptr : 0;
528 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
529 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
531 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
535 cur_len = sizeof(*cmd) + this_len;
536 cmd = malloc(cur_len);
539 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
542 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
544 fio_net_cmd_crc(cmd);
546 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
549 } while (!ret && size);
555 add_reply(tag, list);
564 static struct sk_entry *fio_net_prep_cmd(uint16_t opcode, void *buf,
565 size_t size, uint64_t *tagptr,
568 struct sk_entry *entry;
570 entry = smalloc(sizeof(*entry));
574 INIT_FLIST_HEAD(&entry->next);
575 entry->opcode = opcode;
576 if (flags & SK_F_COPY) {
577 entry->buf = smalloc(size);
578 memcpy(entry->buf, buf, size);
584 entry->tag = *tagptr;
587 entry->flags = flags;
591 static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry);
593 static void fio_net_queue_entry(struct sk_entry *entry)
595 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
597 if (entry->flags & SK_F_INLINE)
598 handle_sk_entry(sk_out, entry);
601 flist_add_tail(&entry->list, &sk_out->list);
604 fio_sem_up(&sk_out->wait);
608 static int fio_net_queue_cmd(uint16_t opcode, void *buf, off_t size,
609 uint64_t *tagptr, int flags)
611 struct sk_entry *entry;
613 entry = fio_net_prep_cmd(opcode, buf, size, tagptr, flags);
615 fio_net_queue_entry(entry);
622 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
624 struct fio_net_cmd cmd;
626 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
627 fio_net_cmd_crc(&cmd);
629 return fio_send_data(sk, &cmd, sizeof(cmd));
633 * If 'list' is non-NULL, then allocate and store the sent command for
634 * later verification.
636 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
637 struct flist_head *list)
642 tag = alloc_reply(tag, opcode);
644 ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
653 add_reply(tag, list);
658 static int fio_net_queue_quit(void)
660 dprint(FD_NET, "server: sending quit\n");
662 return fio_net_queue_cmd(FIO_NET_CMD_QUIT, NULL, 0, NULL, SK_F_SIMPLE);
665 int fio_net_send_quit(int sk)
667 dprint(FD_NET, "server: sending quit\n");
669 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
672 static int fio_net_send_ack(struct fio_net_cmd *cmd, int error, int signal)
674 struct cmd_end_pdu epdu;
680 epdu.error = __cpu_to_le32(error);
681 epdu.signal = __cpu_to_le32(signal);
682 return fio_net_queue_cmd(FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, SK_F_COPY);
685 static int fio_net_queue_stop(int error, int signal)
687 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
688 return fio_net_send_ack(NULL, error, signal);
692 static void fio_server_add_fork_item(struct ffi_element *element, struct flist_head *list)
694 struct fio_fork_item *ffi;
696 ffi = malloc(sizeof(*ffi));
700 ffi->element = *element;
701 flist_add_tail(&ffi->list, list);
704 static void fio_server_add_conn_pid(struct flist_head *conn_list, HANDLE hProcess)
706 struct ffi_element element = {.hProcess = hProcess, .is_thread=FALSE};
707 dprint(FD_NET, "server: forked off connection job (tid=%u)\n", (int) element.thread);
709 fio_server_add_fork_item(&element, conn_list);
712 static void fio_server_add_job_pid(struct flist_head *job_list, pthread_t thread)
714 struct ffi_element element = {.thread = thread, .is_thread=TRUE};
715 dprint(FD_NET, "server: forked off job job (tid=%u)\n", (int) element.thread);
716 fio_server_add_fork_item(&element, job_list);
719 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
723 if (ffi->element.is_thread) {
725 ret = pthread_kill(ffi->element.thread, 0);
728 pthread_join(ffi->element.thread, (void**) &rev_val); /*if the thread is dead, then join it to get status*/
730 ffi->exitval = rev_val;
732 log_err("thread (tid=%u) exited with %x\n", (int) ffi->element.thread, (int) ffi->exitval);
733 dprint(FD_PROCESS, "thread (tid=%u) exited with %x\n", (int) ffi->element.thread, (int) ffi->exitval);
738 GetExitCodeProcess(ffi->element.hProcess, &exit_val);
740 if (exit_val != STILL_ACTIVE) {
741 dprint(FD_PROCESS, "process %u exited with %d\n", GetProcessId(ffi->element.hProcess), exit_val);
743 ffi->exitval = exit_val;
748 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
750 struct fio_fork_item *ffi;
752 ffi = malloc(sizeof(*ffi));
757 flist_add_tail(&ffi->list, list);
760 static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid)
762 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid);
763 fio_server_add_fork_item(pid, conn_list);
766 static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid)
768 dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid);
769 fio_server_add_fork_item(pid, job_list);
772 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
776 ret = waitpid(ffi->pid, &status, WNOHANG);
778 if (errno == ECHILD) {
779 log_err("fio: connection pid %u disappeared\n", (int) ffi->pid);
782 log_err("fio: waitpid: %s\n", strerror(errno));
783 } else if (ret == ffi->pid) {
784 if (WIFSIGNALED(status)) {
785 ffi->signal = WTERMSIG(status);
788 if (WIFEXITED(status)) {
789 if (WEXITSTATUS(status))
790 ffi->exitval = WEXITSTATUS(status);
797 static void fio_server_fork_item_done(struct fio_fork_item *ffi, bool stop)
800 if (ffi->element.is_thread)
801 dprint(FD_NET, "tid %u exited, sig=%u, exitval=%d\n", (int) ffi->element.thread, ffi->signal, ffi->exitval);
803 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) GetProcessId(ffi->element.hProcess), ffi->signal, ffi->exitval);
804 CloseHandle(ffi->element.hProcess);
805 ffi->element.hProcess = INVALID_HANDLE_VALUE;
808 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval);
812 * Fold STOP and QUIT...
815 fio_net_queue_stop(ffi->exitval, ffi->signal);
816 fio_net_queue_quit();
819 flist_del(&ffi->list);
823 static void fio_server_check_fork_items(struct flist_head *list, bool stop)
825 struct flist_head *entry, *tmp;
826 struct fio_fork_item *ffi;
828 flist_for_each_safe(entry, tmp, list) {
829 ffi = flist_entry(entry, struct fio_fork_item, list);
831 fio_server_check_fork_item(ffi);
834 fio_server_fork_item_done(ffi, stop);
838 static void fio_server_check_jobs(struct flist_head *job_list)
840 fio_server_check_fork_items(job_list, true);
843 static void fio_server_check_conns(struct flist_head *conn_list)
845 fio_server_check_fork_items(conn_list, false);
848 static int handle_load_file_cmd(struct fio_net_cmd *cmd)
850 struct cmd_load_file_pdu *pdu = (struct cmd_load_file_pdu *) cmd->payload;
851 void *file_name = pdu->file;
852 struct cmd_start_pdu spdu;
854 dprint(FD_NET, "server: loading local file %s\n", (char *) file_name);
856 pdu->name_len = le16_to_cpu(pdu->name_len);
857 pdu->client_type = le16_to_cpu(pdu->client_type);
859 if (parse_jobs_ini(file_name, 0, 0, pdu->client_type)) {
860 fio_net_queue_quit();
864 spdu.jobs = cpu_to_le32(thread_number);
865 spdu.stat_outputs = cpu_to_le32(stat_number);
866 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
871 static void *fio_backend_thread(void *data)
874 struct sk_out *sk_out = (struct sk_out *) data;
876 sk_out_assign(sk_out);
878 ret = fio_backend(sk_out);
881 pthread_exit((void*) (intptr_t) ret);
886 static int handle_run_cmd(struct sk_out *sk_out, struct flist_head *job_list,
887 struct fio_net_cmd *cmd)
897 /* both this thread and backend_thread call sk_out_assign() to double increment
898 * the ref count. This ensures struct is valid until both threads are done with it
900 sk_out_assign(sk_out);
901 ret = pthread_create(&thread, NULL, fio_backend_thread, sk_out);
903 log_err("pthread_create: %s\n", strerror(ret));
907 fio_server_add_job_pid(job_list, thread);
913 sk_out_assign(sk_out);
916 fio_server_add_job_pid(job_list, pid);
920 ret = fio_backend(sk_out);
928 static int handle_job_cmd(struct fio_net_cmd *cmd)
930 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
931 void *buf = pdu->buf;
932 struct cmd_start_pdu spdu;
934 pdu->buf_len = le32_to_cpu(pdu->buf_len);
935 pdu->client_type = le32_to_cpu(pdu->client_type);
937 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
938 fio_net_queue_quit();
942 spdu.jobs = cpu_to_le32(thread_number);
943 spdu.stat_outputs = cpu_to_le32(stat_number);
945 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
949 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
951 void *pdu = cmd->payload;
952 struct cmd_single_line_pdu *cslp;
953 struct cmd_line_pdu *clp;
954 unsigned long offset;
955 struct cmd_start_pdu spdu;
960 clp->lines = le16_to_cpu(clp->lines);
961 clp->client_type = le16_to_cpu(clp->client_type);
962 argv = malloc(clp->lines * sizeof(char *));
963 offset = sizeof(*clp);
965 dprint(FD_NET, "server: %d command line args\n", clp->lines);
967 for (i = 0; i < clp->lines; i++) {
969 argv[i] = (char *) cslp->text;
971 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
972 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
975 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
976 fio_net_queue_quit();
983 spdu.jobs = cpu_to_le32(thread_number);
984 spdu.stat_outputs = cpu_to_le32(stat_number);
986 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
990 static int handle_probe_cmd(struct fio_net_cmd *cmd)
992 struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload;
993 uint64_t tag = cmd->tag;
994 struct cmd_probe_reply_pdu probe = {
995 #ifdef CONFIG_BIG_ENDIAN
1000 .bpp = sizeof(void *),
1001 .cpus = __cpu_to_le32(cpus_online()),
1004 dprint(FD_NET, "server: sending probe reply\n");
1006 strcpy(me, (char *) pdu->server);
1008 gethostname((char *) probe.hostname, sizeof(probe.hostname));
1009 snprintf((char *) probe.fio_version, sizeof(probe.fio_version), "%s",
1010 fio_version_string);
1013 * If the client supports compression and we do too, then enable it
1015 if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) {
1016 probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB);
1023 return fio_net_queue_cmd(FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, SK_F_COPY);
1026 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
1028 struct jobs_eta *je;
1029 uint64_t tag = cmd->tag;
1033 dprint(FD_NET, "server sending status\n");
1036 * Fake ETA return if we don't have a local one, otherwise the client
1037 * will end up timing out waiting for a response to the ETA request
1039 je = get_jobs_eta(true, &size);
1042 je = calloc(1, size);
1044 je->nr_running = cpu_to_le32(je->nr_running);
1045 je->nr_ramp = cpu_to_le32(je->nr_ramp);
1046 je->nr_pending = cpu_to_le32(je->nr_pending);
1047 je->nr_setting_up = cpu_to_le32(je->nr_setting_up);
1048 je->files_open = cpu_to_le32(je->files_open);
1050 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1051 je->m_rate[i] = cpu_to_le64(je->m_rate[i]);
1052 je->t_rate[i] = cpu_to_le64(je->t_rate[i]);
1053 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
1054 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
1055 je->rate[i] = cpu_to_le64(je->rate[i]);
1056 je->iops[i] = cpu_to_le32(je->iops[i]);
1059 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
1060 je->eta_sec = cpu_to_le64(je->eta_sec);
1061 je->nr_threads = cpu_to_le32(je->nr_threads);
1062 je->is_pow2 = cpu_to_le32(je->is_pow2);
1063 je->unit_base = cpu_to_le32(je->unit_base);
1066 fio_net_queue_cmd(FIO_NET_CMD_ETA, je, size, &tag, SK_F_FREE);
1070 static int send_update_job_reply(uint64_t __tag, int error)
1072 uint64_t tag = __tag;
1075 pdu_error = __cpu_to_le32(error);
1076 return fio_net_queue_cmd(FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, SK_F_COPY);
1079 static int handle_update_job_cmd(struct fio_net_cmd *cmd)
1081 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
1082 struct thread_data *td;
1085 tnumber = le32_to_cpu(pdu->thread_number);
1087 dprint(FD_NET, "server: updating options for job %u\n", tnumber);
1089 if (!tnumber || tnumber > thread_number) {
1090 send_update_job_reply(cmd->tag, ENODEV);
1094 td = tnumber_to_td(tnumber);
1095 convert_thread_options_to_cpu(&td->o, &pdu->top);
1096 send_update_job_reply(cmd->tag, 0);
1100 static int handle_trigger_cmd(struct fio_net_cmd *cmd, struct flist_head *job_list)
1102 struct cmd_vtrigger_pdu *pdu = (struct cmd_vtrigger_pdu *) cmd->payload;
1103 char *buf = (char *) pdu->cmd;
1104 struct all_io_list *rep;
1107 pdu->len = le16_to_cpu(pdu->len);
1108 buf[pdu->len] = '\0';
1110 rep = get_all_io_list(IO_LIST_ALL, &sz);
1112 struct all_io_list state;
1114 state.threads = cpu_to_le64((uint64_t) 0);
1115 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, &state, sizeof(state), NULL, SK_F_COPY | SK_F_INLINE);
1117 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, rep, sz, NULL, SK_F_FREE | SK_F_INLINE);
1119 fio_terminate_threads(TERMINATE_ALL, TERMINATE_ALL);
1120 fio_server_check_jobs(job_list);
1125 static int handle_command(struct sk_out *sk_out, struct flist_head *job_list,
1126 struct fio_net_cmd *cmd)
1130 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n",
1131 fio_server_op(cmd->opcode), cmd->pdu_len,
1132 (unsigned long long) cmd->tag);
1134 switch (cmd->opcode) {
1135 case FIO_NET_CMD_QUIT:
1136 fio_terminate_threads(TERMINATE_ALL, TERMINATE_ALL);
1139 case FIO_NET_CMD_EXIT:
1140 exit_backend = true;
1142 case FIO_NET_CMD_LOAD_FILE:
1143 ret = handle_load_file_cmd(cmd);
1145 case FIO_NET_CMD_JOB:
1146 ret = handle_job_cmd(cmd);
1148 case FIO_NET_CMD_JOBLINE:
1149 ret = handle_jobline_cmd(cmd);
1151 case FIO_NET_CMD_PROBE:
1152 ret = handle_probe_cmd(cmd);
1154 case FIO_NET_CMD_SEND_ETA:
1155 ret = handle_send_eta_cmd(cmd);
1157 case FIO_NET_CMD_RUN:
1158 ret = handle_run_cmd(sk_out, job_list, cmd);
1160 case FIO_NET_CMD_UPDATE_JOB:
1161 ret = handle_update_job_cmd(cmd);
1163 case FIO_NET_CMD_VTRIGGER:
1164 ret = handle_trigger_cmd(cmd, job_list);
1166 case FIO_NET_CMD_SENDFILE: {
1167 struct cmd_sendfile_reply *in;
1168 struct cmd_reply *rep;
1170 rep = (struct cmd_reply *) (uintptr_t) cmd->tag;
1172 in = (struct cmd_sendfile_reply *) cmd->payload;
1173 in->size = le32_to_cpu(in->size);
1174 in->error = le32_to_cpu(in->error);
1177 rep->error = in->error;
1180 rep->data = smalloc(in->size);
1183 rep->error = ENOMEM;
1185 rep->size = in->size;
1186 memcpy(rep->data, in->data, in->size);
1189 fio_sem_up(&rep->lock);
1193 log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
1201 * Send a command with a separate PDU, not inlined in the command
1203 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
1204 off_t size, uint64_t tag, uint32_t flags)
1206 struct fio_net_cmd cmd;
1207 struct iovec iov[2];
1211 iov[0].iov_base = (void *) &cmd;
1212 iov[0].iov_len = sizeof(cmd);
1215 uint32_t this_flags = flags;
1218 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
1219 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
1221 if (this_len < size)
1222 this_flags |= FIO_NET_CMD_F_MORE;
1224 __fio_init_net_cmd(&cmd, opcode, this_len, tag);
1225 cmd.flags = __cpu_to_le32(this_flags);
1226 fio_net_cmd_crc_pdu(&cmd, buf);
1228 iov[1].iov_base = (void *) buf;
1229 iov[1].iov_len = this_len;
1231 ret = fio_sendv_data(sk, iov, 2);
1234 } while (!ret && size);
1239 static void finish_entry(struct sk_entry *entry)
1241 if (entry->flags & SK_F_FREE)
1243 else if (entry->flags & SK_F_COPY)
1249 static void entry_set_flags(struct sk_entry *entry, struct flist_head *list,
1250 unsigned int *flags)
1252 if (!flist_empty(list))
1253 *flags = FIO_NET_CMD_F_MORE;
1258 static int send_vec_entry(struct sk_out *sk_out, struct sk_entry *first)
1263 entry_set_flags(first, &first->next, &flags);
1265 ret = fio_send_cmd_ext_pdu(sk_out->sk, first->opcode, first->buf,
1266 first->size, first->tag, flags);
1268 while (!flist_empty(&first->next)) {
1269 struct sk_entry *next;
1271 next = flist_first_entry(&first->next, struct sk_entry, list);
1272 flist_del_init(&next->list);
1274 entry_set_flags(next, &first->next, &flags);
1276 ret += fio_send_cmd_ext_pdu(sk_out->sk, next->opcode, next->buf,
1277 next->size, next->tag, flags);
1284 static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry)
1288 fio_sem_down(&sk_out->xmit);
1290 if (entry->flags & SK_F_VEC)
1291 ret = send_vec_entry(sk_out, entry);
1292 else if (entry->flags & SK_F_SIMPLE) {
1293 ret = fio_net_send_simple_cmd(sk_out->sk, entry->opcode,
1296 ret = fio_net_send_cmd(sk_out->sk, entry->opcode, entry->buf,
1297 entry->size, &entry->tag, NULL);
1300 fio_sem_up(&sk_out->xmit);
1303 log_err("fio: failed handling cmd %s\n", fio_server_op(entry->opcode));
1305 finish_entry(entry);
1309 static int handle_xmits(struct sk_out *sk_out)
1311 struct sk_entry *entry;
1316 if (flist_empty(&sk_out->list)) {
1321 flist_splice_init(&sk_out->list, &list);
1324 while (!flist_empty(&list)) {
1325 entry = flist_entry(list.next, struct sk_entry, list);
1326 flist_del(&entry->list);
1327 ret += handle_sk_entry(sk_out, entry);
1333 static int handle_connection(struct sk_out *sk_out)
1335 struct fio_net_cmd *cmd = NULL;
1336 FLIST_HEAD(job_list);
1342 while (!exit_backend) {
1343 struct pollfd pfd = {
1351 if (!flist_empty(&job_list))
1354 handle_xmits(sk_out);
1356 ret = poll(&pfd, 1, 0);
1360 log_err("fio: poll: %s\n", strerror(errno));
1363 fio_server_check_jobs(&job_list);
1364 fio_sem_down_timeout(&sk_out->wait, timeout);
1368 if (pfd.revents & POLLIN)
1370 if (pfd.revents & (POLLERR|POLLHUP)) {
1374 } while (!exit_backend);
1376 fio_server_check_jobs(&job_list);
1381 if (pfd.revents & POLLIN)
1382 cmd = fio_net_recv_cmd(sk_out->sk, true);
1388 ret = handle_command(sk_out, &job_list, cmd);
1399 handle_xmits(sk_out);
1403 __sk_out_drop(sk_out);
1407 /* get the address on this host bound by the input socket,
1408 * whether it is ipv6 or ipv4 */
1410 static int get_my_addr_str(int sk)
1412 struct sockaddr_in6 myaddr6 = { 0, };
1413 struct sockaddr_in myaddr4 = { 0, };
1414 struct sockaddr *sockaddr_p;
1420 len = sizeof(myaddr6);
1421 sockaddr_p = (struct sockaddr * )&myaddr6;
1422 net_addr = (char * )&myaddr6.sin6_addr;
1424 len = sizeof(myaddr4);
1425 sockaddr_p = (struct sockaddr * )&myaddr4;
1426 net_addr = (char * )&myaddr4.sin_addr;
1429 ret = getsockname(sk, sockaddr_p, &len);
1431 log_err("fio: getsockname: %s\n", strerror(errno));
1435 if (!inet_ntop(use_ipv6?AF_INET6:AF_INET, net_addr, client_sockaddr_str, INET6_ADDRSTRLEN - 1)) {
1436 log_err("inet_ntop: failed to convert addr to string\n");
1440 dprint(FD_NET, "fio server bound to addr %s\n", client_sockaddr_str);
1445 static int handle_connection_process(void)
1447 WSAPROTOCOL_INFO protocol_info;
1451 struct sk_out *sk_out;
1453 char *msg = (char *) "connected";
1455 log_info("server enter accept loop. ProcessID %d\n", GetCurrentProcessId());
1458 fio_server_pipe_name,
1459 GENERIC_READ | GENERIC_WRITE,
1464 if (hpipe == INVALID_HANDLE_VALUE) {
1465 log_err("couldnt open pipe %s error %lu\n",
1466 fio_server_pipe_name, GetLastError());
1470 if (!ReadFile(hpipe, &protocol_info, sizeof(protocol_info), &bytes_read, NULL)) {
1471 log_err("couldnt read pi from pipe %s error %lu\n", fio_server_pipe_name,
1475 if (use_ipv6) /* use protocol_info to create a duplicate of parents socket */
1476 sk = WSASocket(AF_INET6, SOCK_STREAM, 0, &protocol_info, 0, 0);
1478 sk = WSASocket(AF_INET, SOCK_STREAM, 0, &protocol_info, 0, 0);
1480 sk_out = scalloc(1, sizeof(*sk_out));
1488 sk_out->hProcess = INVALID_HANDLE_VALUE;
1489 INIT_FLIST_HEAD(&sk_out->list);
1490 __fio_sem_init(&sk_out->lock, FIO_SEM_UNLOCKED);
1491 __fio_sem_init(&sk_out->wait, FIO_SEM_LOCKED);
1492 __fio_sem_init(&sk_out->xmit, FIO_SEM_UNLOCKED);
1494 get_my_addr_str(sk);
1496 if (!WriteFile(hpipe, msg, strlen(msg), NULL, NULL)) {
1497 log_err("couldnt write pipe\n");
1503 sk_out_assign(sk_out);
1505 ret = handle_connection(sk_out);
1506 __sk_out_drop(sk_out);
1511 static int accept_loop(int listen_sk)
1513 struct sockaddr_in addr;
1514 struct sockaddr_in6 addr6;
1515 socklen_t len = use_ipv6 ? sizeof(addr6) : sizeof(addr);
1517 int ret = 0, sk, exitval = 0;
1518 FLIST_HEAD(conn_list);
1520 dprint(FD_NET, "server enter accept loop\n");
1522 fio_set_fd_nonblocking(listen_sk, "server");
1524 while (!exit_backend) {
1525 struct sk_out *sk_out;
1534 pfd.events = POLLIN;
1538 if (!flist_empty(&conn_list))
1541 ret = poll(&pfd, 1, timeout);
1545 log_err("fio: poll: %s\n", strerror(errno));
1548 fio_server_check_conns(&conn_list);
1552 if (pfd.revents & POLLIN)
1554 } while (!exit_backend);
1556 fio_server_check_conns(&conn_list);
1558 if (exit_backend || ret < 0)
1562 sk = accept(listen_sk, (struct sockaddr *) &addr6, &len);
1564 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
1567 log_err("fio: accept: %s\n", strerror(errno));
1572 from = inet_ntop(AF_INET6, (struct sockaddr *) &addr6.sin6_addr, buf, sizeof(buf));
1574 from = inet_ntop(AF_INET, (struct sockaddr *) &addr.sin_addr, buf, sizeof(buf));
1576 dprint(FD_NET, "server: connect from %s\n", from);
1578 sk_out = scalloc(1, sizeof(*sk_out));
1585 INIT_FLIST_HEAD(&sk_out->list);
1586 __fio_sem_init(&sk_out->lock, FIO_SEM_UNLOCKED);
1587 __fio_sem_init(&sk_out->wait, FIO_SEM_LOCKED);
1588 __fio_sem_init(&sk_out->xmit, FIO_SEM_UNLOCKED);
1591 hProcess = windows_handle_connection(hjob, sk);
1592 if (hProcess == INVALID_HANDLE_VALUE)
1594 sk_out->hProcess = hProcess;
1595 fio_server_add_conn_pid(&conn_list, hProcess);
1600 fio_server_add_conn_pid(&conn_list, pid);
1604 /* if error, it's already logged, non-fatal */
1605 get_my_addr_str(sk);
1608 * Assign sk_out here, it'll be dropped in handle_connection()
1609 * since that function calls _exit() when done
1611 sk_out_assign(sk_out);
1612 handle_connection(sk_out);
1619 int fio_server_text_output(int level, const char *buf, size_t len)
1621 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
1622 struct cmd_text_pdu *pdu;
1626 if (!sk_out || sk_out->sk == -1)
1629 tlen = sizeof(*pdu) + len;
1632 pdu->level = __cpu_to_le32(level);
1633 pdu->buf_len = __cpu_to_le32(len);
1635 gettimeofday(&tv, NULL);
1636 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
1637 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
1639 memcpy(pdu->buf, buf, len);
1641 fio_net_queue_cmd(FIO_NET_CMD_TEXT, pdu, tlen, NULL, SK_F_COPY);
1646 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
1648 dst->max_val = cpu_to_le64(src->max_val);
1649 dst->min_val = cpu_to_le64(src->min_val);
1650 dst->samples = cpu_to_le64(src->samples);
1653 * Encode to IEEE 754 for network transfer
1655 dst->mean.u.i = cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
1656 dst->S.u.i = cpu_to_le64(fio_double_to_uint64(src->S.u.f));
1659 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
1663 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1664 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
1665 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
1666 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
1667 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
1668 dst->iobytes[i] = cpu_to_le64(src->iobytes[i]);
1669 dst->agg[i] = cpu_to_le64(src->agg[i]);
1672 dst->kb_base = cpu_to_le32(src->kb_base);
1673 dst->unit_base = cpu_to_le32(src->unit_base);
1674 dst->groupid = cpu_to_le32(src->groupid);
1675 dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep);
1676 dst->sig_figs = cpu_to_le32(src->sig_figs);
1680 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
1681 * into a single payload.
1683 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
1685 struct cmd_ts_pdu p;
1688 uint64_t *ss_iops, *ss_bw;
1690 dprint(FD_NET, "server sending end stats\n");
1692 memset(&p, 0, sizeof(p));
1694 snprintf(p.ts.name, sizeof(p.ts.name), "%s", ts->name);
1695 snprintf(p.ts.verror, sizeof(p.ts.verror), "%s", ts->verror);
1696 snprintf(p.ts.description, sizeof(p.ts.description), "%s",
1699 p.ts.error = cpu_to_le32(ts->error);
1700 p.ts.thread_number = cpu_to_le32(ts->thread_number);
1701 p.ts.groupid = cpu_to_le32(ts->groupid);
1702 p.ts.pid = cpu_to_le32(ts->pid);
1703 p.ts.members = cpu_to_le32(ts->members);
1704 p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep);
1706 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1707 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
1708 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
1709 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
1710 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
1711 convert_io_stat(&p.ts.iops_stat[i], &ts->iops_stat[i]);
1713 convert_io_stat(&p.ts.sync_stat, &ts->sync_stat);
1715 p.ts.usr_time = cpu_to_le64(ts->usr_time);
1716 p.ts.sys_time = cpu_to_le64(ts->sys_time);
1717 p.ts.ctx = cpu_to_le64(ts->ctx);
1718 p.ts.minf = cpu_to_le64(ts->minf);
1719 p.ts.majf = cpu_to_le64(ts->majf);
1720 p.ts.clat_percentiles = cpu_to_le32(ts->clat_percentiles);
1721 p.ts.lat_percentiles = cpu_to_le32(ts->lat_percentiles);
1722 p.ts.slat_percentiles = cpu_to_le32(ts->slat_percentiles);
1723 p.ts.percentile_precision = cpu_to_le64(ts->percentile_precision);
1725 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1726 fio_fp64_t *src = &ts->percentile_list[i];
1727 fio_fp64_t *dst = &p.ts.percentile_list[i];
1729 dst->u.i = cpu_to_le64(fio_double_to_uint64(src->u.f));
1732 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1733 p.ts.io_u_map[i] = cpu_to_le64(ts->io_u_map[i]);
1734 p.ts.io_u_submit[i] = cpu_to_le64(ts->io_u_submit[i]);
1735 p.ts.io_u_complete[i] = cpu_to_le64(ts->io_u_complete[i]);
1738 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
1739 p.ts.io_u_lat_n[i] = cpu_to_le64(ts->io_u_lat_n[i]);
1740 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1741 p.ts.io_u_lat_u[i] = cpu_to_le64(ts->io_u_lat_u[i]);
1742 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1743 p.ts.io_u_lat_m[i] = cpu_to_le64(ts->io_u_lat_m[i]);
1745 for (i = 0; i < FIO_LAT_CNT; i++)
1746 for (j = 0; j < DDIR_RWDIR_CNT; j++)
1747 for (k = 0; k < FIO_IO_U_PLAT_NR; k++)
1748 p.ts.io_u_plat[i][j][k] = cpu_to_le64(ts->io_u_plat[i][j][k]);
1750 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1751 p.ts.io_u_sync_plat[j] = cpu_to_le64(ts->io_u_sync_plat[j]);
1753 for (i = 0; i < DDIR_RWDIR_SYNC_CNT; i++)
1754 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
1756 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1757 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
1758 p.ts.drop_io_u[i] = cpu_to_le64(ts->drop_io_u[i]);
1761 p.ts.total_submit = cpu_to_le64(ts->total_submit);
1762 p.ts.total_complete = cpu_to_le64(ts->total_complete);
1763 p.ts.nr_zone_resets = cpu_to_le64(ts->nr_zone_resets);
1765 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1766 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
1767 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
1770 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
1771 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
1772 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
1773 p.ts.first_error = cpu_to_le32(ts->first_error);
1774 p.ts.kb_base = cpu_to_le32(ts->kb_base);
1775 p.ts.unit_base = cpu_to_le32(ts->unit_base);
1777 p.ts.latency_depth = cpu_to_le32(ts->latency_depth);
1778 p.ts.latency_target = cpu_to_le64(ts->latency_target);
1779 p.ts.latency_window = cpu_to_le64(ts->latency_window);
1780 p.ts.latency_percentile.u.i = cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f));
1782 p.ts.sig_figs = cpu_to_le32(ts->sig_figs);
1784 p.ts.nr_block_infos = cpu_to_le64(ts->nr_block_infos);
1785 for (i = 0; i < p.ts.nr_block_infos; i++)
1786 p.ts.block_infos[i] = cpu_to_le32(ts->block_infos[i]);
1788 p.ts.ss_dur = cpu_to_le64(ts->ss_dur);
1789 p.ts.ss_state = cpu_to_le32(ts->ss_state);
1790 p.ts.ss_head = cpu_to_le32(ts->ss_head);
1791 p.ts.ss_limit.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_limit.u.f));
1792 p.ts.ss_slope.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_slope.u.f));
1793 p.ts.ss_deviation.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_deviation.u.f));
1794 p.ts.ss_criterion.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_criterion.u.f));
1796 p.ts.cachehit = cpu_to_le64(ts->cachehit);
1797 p.ts.cachemiss = cpu_to_le64(ts->cachemiss);
1799 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1800 for (j = 0; j < FIO_IO_U_PLAT_NR; j++) {
1801 p.ts.io_u_plat_high_prio[i][j] = cpu_to_le64(ts->io_u_plat_high_prio[i][j]);
1802 p.ts.io_u_plat_low_prio[i][j] = cpu_to_le64(ts->io_u_plat_low_prio[i][j]);
1804 convert_io_stat(&p.ts.clat_high_prio_stat[i], &ts->clat_high_prio_stat[i]);
1805 convert_io_stat(&p.ts.clat_low_prio_stat[i], &ts->clat_low_prio_stat[i]);
1808 convert_gs(&p.rs, rs);
1810 dprint(FD_NET, "ts->ss_state = %d\n", ts->ss_state);
1811 if (ts->ss_state & FIO_SS_DATA) {
1812 dprint(FD_NET, "server sending steadystate ring buffers\n");
1814 ss_buf = malloc(sizeof(p) + 2*ts->ss_dur*sizeof(uint64_t));
1816 memcpy(ss_buf, &p, sizeof(p));
1818 ss_iops = (uint64_t *) ((struct cmd_ts_pdu *)ss_buf + 1);
1819 ss_bw = ss_iops + (int) ts->ss_dur;
1820 for (i = 0; i < ts->ss_dur; i++) {
1821 ss_iops[i] = cpu_to_le64(ts->ss_iops_data[i]);
1822 ss_bw[i] = cpu_to_le64(ts->ss_bw_data[i]);
1825 fio_net_queue_cmd(FIO_NET_CMD_TS, ss_buf, sizeof(p) + 2*ts->ss_dur*sizeof(uint64_t), NULL, SK_F_COPY);
1830 fio_net_queue_cmd(FIO_NET_CMD_TS, &p, sizeof(p), NULL, SK_F_COPY);
1833 void fio_server_send_gs(struct group_run_stats *rs)
1835 struct group_run_stats gs;
1837 dprint(FD_NET, "server sending group run stats\n");
1839 convert_gs(&gs, rs);
1840 fio_net_queue_cmd(FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, SK_F_COPY);
1843 void fio_server_send_job_options(struct flist_head *opt_list,
1846 struct cmd_job_option pdu;
1847 struct flist_head *entry;
1849 if (flist_empty(opt_list))
1852 flist_for_each(entry, opt_list) {
1853 struct print_option *p;
1856 p = flist_entry(entry, struct print_option, list);
1857 memset(&pdu, 0, sizeof(pdu));
1860 pdu.global = __cpu_to_le16(1);
1864 pdu.groupid = cpu_to_le32(gid);
1866 len = strlen(p->name);
1867 if (len >= sizeof(pdu.name)) {
1868 len = sizeof(pdu.name) - 1;
1869 pdu.truncated = __cpu_to_le16(1);
1871 memcpy(pdu.name, p->name, len);
1873 len = strlen(p->value);
1874 if (len >= sizeof(pdu.value)) {
1875 len = sizeof(pdu.value) - 1;
1876 pdu.truncated = __cpu_to_le16(1);
1878 memcpy(pdu.value, p->value, len);
1880 fio_net_queue_cmd(FIO_NET_CMD_JOB_OPT, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1884 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
1888 for (i = 0; i < 2; i++) {
1889 dst->ios[i] = cpu_to_le64(src->ios[i]);
1890 dst->merges[i] = cpu_to_le64(src->merges[i]);
1891 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1892 dst->ticks[i] = cpu_to_le64(src->ticks[i]);
1895 dst->io_ticks = cpu_to_le64(src->io_ticks);
1896 dst->time_in_queue = cpu_to_le64(src->time_in_queue);
1897 dst->slavecount = cpu_to_le32(src->slavecount);
1898 dst->max_util.u.i = cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
1901 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
1905 snprintf((char *) dst->name, sizeof(dst->name), "%s", src->name);
1907 for (i = 0; i < 2; i++) {
1908 dst->s.ios[i] = cpu_to_le64(src->s.ios[i]);
1909 dst->s.merges[i] = cpu_to_le64(src->s.merges[i]);
1910 dst->s.sectors[i] = cpu_to_le64(src->s.sectors[i]);
1911 dst->s.ticks[i] = cpu_to_le64(src->s.ticks[i]);
1914 dst->s.io_ticks = cpu_to_le64(src->s.io_ticks);
1915 dst->s.time_in_queue = cpu_to_le64(src->s.time_in_queue);
1916 dst->s.msec = cpu_to_le64(src->s.msec);
1919 void fio_server_send_du(void)
1921 struct disk_util *du;
1922 struct flist_head *entry;
1923 struct cmd_du_pdu pdu;
1925 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
1927 memset(&pdu, 0, sizeof(pdu));
1929 flist_for_each(entry, &disk_list) {
1930 du = flist_entry(entry, struct disk_util, list);
1932 convert_dus(&pdu.dus, &du->dus);
1933 convert_agg(&pdu.agg, &du->agg);
1935 fio_net_queue_cmd(FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1941 static inline void __fio_net_prep_tail(z_stream *stream, void *out_pdu,
1942 struct sk_entry **last_entry,
1943 struct sk_entry *first)
1945 unsigned int this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream->avail_out;
1947 *last_entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
1948 NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE);
1950 flist_add_tail(&(*last_entry)->list, &first->next);
1954 * Deflates the next input given, creating as many new packets in the
1955 * linked list as necessary.
1957 static int __deflate_pdu_buffer(void *next_in, unsigned int next_sz, void **out_pdu,
1958 struct sk_entry **last_entry, z_stream *stream,
1959 struct sk_entry *first)
1963 stream->next_in = next_in;
1964 stream->avail_in = next_sz;
1966 if (!stream->avail_out) {
1967 __fio_net_prep_tail(stream, *out_pdu, last_entry, first);
1968 if (*last_entry == NULL)
1971 *out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1973 stream->avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1974 stream->next_out = *out_pdu;
1977 ret = deflate(stream, Z_BLOCK);
1983 } while (stream->avail_in);
1988 static int __fio_append_iolog_gz_hist(struct sk_entry *first, struct io_log *log,
1989 struct io_logs *cur_log, z_stream *stream)
1991 struct sk_entry *entry;
1994 int sample_sz = log_entry_sz(log);
1996 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
1997 stream->avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
1998 stream->next_out = out_pdu;
2000 for (i = 0; i < cur_log->nr_samples; i++) {
2001 struct io_sample *s;
2002 struct io_u_plat_entry *cur_plat_entry, *prev_plat_entry;
2003 uint64_t *cur_plat, *prev_plat;
2005 s = get_sample(log, cur_log, i);
2006 ret = __deflate_pdu_buffer(s, sample_sz, &out_pdu, &entry, stream, first);
2010 /* Do the subtraction on server side so that client doesn't have to
2011 * reconstruct our linked list from packets.
2013 cur_plat_entry = s->data.plat_entry;
2014 prev_plat_entry = flist_first_entry(&cur_plat_entry->list, struct io_u_plat_entry, list);
2015 cur_plat = cur_plat_entry->io_u_plat;
2016 prev_plat = prev_plat_entry->io_u_plat;
2018 for (j = 0; j < FIO_IO_U_PLAT_NR; j++) {
2019 cur_plat[j] -= prev_plat[j];
2022 flist_del(&prev_plat_entry->list);
2023 free(prev_plat_entry);
2025 ret = __deflate_pdu_buffer(cur_plat_entry, sizeof(*cur_plat_entry),
2026 &out_pdu, &entry, stream, first);
2032 __fio_net_prep_tail(stream, out_pdu, &entry, first);
2033 return entry == NULL;
2036 static int __fio_append_iolog_gz(struct sk_entry *first, struct io_log *log,
2037 struct io_logs *cur_log, z_stream *stream)
2039 unsigned int this_len;
2043 if (log->log_type == IO_LOG_TYPE_HIST)
2044 return __fio_append_iolog_gz_hist(first, log, cur_log, stream);
2046 stream->next_in = (void *) cur_log->log;
2047 stream->avail_in = cur_log->nr_samples * log_entry_sz(log);
2050 struct sk_entry *entry;
2053 * Dirty - since the log is potentially huge, compress it into
2054 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
2055 * side defragment it.
2057 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
2059 stream->avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
2060 stream->next_out = out_pdu;
2061 ret = deflate(stream, Z_BLOCK);
2062 /* may be Z_OK, or Z_STREAM_END */
2068 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream->avail_out;
2070 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
2071 NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE);
2076 flist_add_tail(&entry->list, &first->next);
2077 } while (stream->avail_in);
2082 static int fio_append_iolog_gz(struct sk_entry *first, struct io_log *log)
2091 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK)
2094 while (!flist_empty(&log->io_logs)) {
2095 struct io_logs *cur_log;
2097 cur_log = flist_first_entry(&log->io_logs, struct io_logs, list);
2098 flist_del_init(&cur_log->list);
2100 ret = __fio_append_iolog_gz(first, log, cur_log, &stream);
2105 ret = deflate(&stream, Z_FINISH);
2107 while (ret != Z_STREAM_END) {
2108 struct sk_entry *entry;
2109 unsigned int this_len;
2112 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
2113 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
2114 stream.next_out = out_pdu;
2116 ret = deflate(&stream, Z_FINISH);
2117 /* may be Z_OK, or Z_STREAM_END */
2123 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
2125 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
2126 NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE);
2131 flist_add_tail(&entry->list, &first->next);
2134 ret = deflateEnd(&stream);
2141 static int fio_append_iolog_gz(struct sk_entry *first, struct io_log *log)
2147 static int fio_append_gz_chunks(struct sk_entry *first, struct io_log *log)
2149 struct sk_entry *entry;
2150 struct flist_head *node;
2153 pthread_mutex_lock(&log->chunk_lock);
2154 flist_for_each(node, &log->chunk_list) {
2155 struct iolog_compress *c;
2157 c = flist_entry(node, struct iolog_compress, list);
2158 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, c->buf, c->len,
2159 NULL, SK_F_VEC | SK_F_INLINE);
2164 flist_add_tail(&entry->list, &first->next);
2166 pthread_mutex_unlock(&log->chunk_lock);
2170 static int fio_append_text_log(struct sk_entry *first, struct io_log *log)
2172 struct sk_entry *entry;
2175 while (!flist_empty(&log->io_logs)) {
2176 struct io_logs *cur_log;
2179 cur_log = flist_first_entry(&log->io_logs, struct io_logs, list);
2180 flist_del_init(&cur_log->list);
2182 size = cur_log->nr_samples * log_entry_sz(log);
2184 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, cur_log->log, size,
2185 NULL, SK_F_VEC | SK_F_INLINE);
2190 flist_add_tail(&entry->list, &first->next);
2196 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
2198 struct cmd_iolog_pdu pdu = {
2199 .nr_samples = cpu_to_le64(iolog_nr_samples(log)),
2200 .thread_number = cpu_to_le32(td->thread_number),
2201 .log_type = cpu_to_le32(log->log_type),
2202 .log_hist_coarseness = cpu_to_le32(log->hist_coarseness),
2204 struct sk_entry *first;
2205 struct flist_head *entry;
2208 if (!flist_empty(&log->chunk_list))
2209 pdu.compressed = __cpu_to_le32(STORE_COMPRESSED);
2211 pdu.compressed = __cpu_to_le32(XMIT_COMPRESSED);
2215 snprintf((char *) pdu.name, sizeof(pdu.name), "%s", name);
2218 * We can't do this for a pre-compressed log, but for that case,
2219 * log->nr_samples is zero anyway.
2221 flist_for_each(entry, &log->io_logs) {
2222 struct io_logs *cur_log;
2225 cur_log = flist_entry(entry, struct io_logs, list);
2227 for (i = 0; i < cur_log->nr_samples; i++) {
2228 struct io_sample *s = get_sample(log, cur_log, i);
2230 s->time = cpu_to_le64(s->time);
2231 s->data.val = cpu_to_le64(s->data.val);
2232 s->__ddir = __cpu_to_le32(s->__ddir);
2233 s->bs = cpu_to_le64(s->bs);
2235 if (log->log_offset) {
2236 struct io_sample_offset *so = (void *) s;
2238 so->offset = cpu_to_le64(so->offset);
2244 * Assemble header entry first
2246 first = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, &pdu, sizeof(pdu), NULL, SK_F_VEC | SK_F_INLINE | SK_F_COPY);
2251 * Now append actual log entries. If log compression was enabled on
2252 * the job, just send out the compressed chunks directly. If we
2253 * have a plain log, compress if we can, then send. Otherwise, send
2254 * the plain text output.
2256 if (!flist_empty(&log->chunk_list))
2257 ret = fio_append_gz_chunks(first, log);
2259 ret = fio_append_iolog_gz(first, log);
2261 ret = fio_append_text_log(first, log);
2263 fio_net_queue_entry(first);
2267 void fio_server_send_add_job(struct thread_data *td)
2269 struct cmd_add_job_pdu pdu = {
2270 .thread_number = cpu_to_le32(td->thread_number),
2271 .groupid = cpu_to_le32(td->groupid),
2274 convert_thread_options_to_net(&pdu.top, &td->o);
2276 fio_net_queue_cmd(FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL,
2280 void fio_server_send_start(struct thread_data *td)
2282 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
2284 assert(sk_out->sk != -1);
2286 fio_net_queue_cmd(FIO_NET_CMD_SERVER_START, NULL, 0, NULL, SK_F_SIMPLE);
2289 int fio_server_get_verify_state(const char *name, int threadnumber,
2292 struct thread_io_list *s;
2293 struct cmd_sendfile out;
2294 struct cmd_reply *rep;
2299 dprint(FD_NET, "server: request verify state\n");
2301 rep = smalloc(sizeof(*rep));
2305 __fio_sem_init(&rep->lock, FIO_SEM_LOCKED);
2309 verify_state_gen_name((char *) out.path, sizeof(out.path), name, me,
2311 tag = (uint64_t) (uintptr_t) rep;
2312 fio_net_queue_cmd(FIO_NET_CMD_SENDFILE, &out, sizeof(out), &tag,
2316 * Wait for the backend to receive the reply
2318 if (fio_sem_down_timeout(&rep->lock, 10000)) {
2319 log_err("fio: timed out waiting for reply\n");
2325 log_err("fio: failure on receiving state file %s: %s\n",
2326 out.path, strerror(rep->error));
2331 fio_net_queue_quit();
2336 * The format is verify_state_hdr, then thread_io_list. Verify
2337 * the header, and the thread_io_list checksum
2339 s = rep->data + sizeof(struct verify_state_hdr);
2340 if (verify_state_hdr(rep->data, s)) {
2346 * Don't need the header from now, copy just the thread_io_list
2349 rep->size -= sizeof(struct verify_state_hdr);
2350 data = malloc(rep->size);
2351 memcpy(data, s, rep->size);
2355 __fio_sem_remove(&rep->lock);
2360 static int fio_init_server_ip(void)
2362 struct sockaddr *addr;
2369 sk = socket(AF_INET6, SOCK_STREAM, 0);
2371 sk = socket(AF_INET, SOCK_STREAM, 0);
2374 log_err("fio: socket: %s\n", strerror(errno));
2379 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) {
2380 log_err("fio: setsockopt(REUSEADDR): %s\n", strerror(errno));
2386 * Not fatal if fails, so just ignore it if that happens
2388 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt))) {
2393 void *src = &saddr_in6.sin6_addr;
2395 addr = (struct sockaddr *) &saddr_in6;
2396 socklen = sizeof(saddr_in6);
2397 saddr_in6.sin6_family = AF_INET6;
2398 str = inet_ntop(AF_INET6, src, buf, sizeof(buf));
2400 void *src = &saddr_in.sin_addr;
2402 addr = (struct sockaddr *) &saddr_in;
2403 socklen = sizeof(saddr_in);
2404 saddr_in.sin_family = AF_INET;
2405 str = inet_ntop(AF_INET, src, buf, sizeof(buf));
2408 if (bind(sk, addr, socklen) < 0) {
2409 log_err("fio: bind: %s\n", strerror(errno));
2410 log_info("fio: failed with IPv%c %s\n", use_ipv6 ? '6' : '4', str);
2418 static int fio_init_server_sock(void)
2420 struct sockaddr_un addr;
2425 sk = socket(AF_UNIX, SOCK_STREAM, 0);
2427 log_err("fio: socket: %s\n", strerror(errno));
2433 addr.sun_family = AF_UNIX;
2434 snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", bind_sock);
2436 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
2438 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
2439 log_err("fio: bind: %s\n", strerror(errno));
2448 static int fio_init_server_connection(void)
2453 dprint(FD_NET, "starting server\n");
2456 sk = fio_init_server_ip();
2458 sk = fio_init_server_sock();
2463 memset(bind_str, 0, sizeof(bind_str));
2472 src = &saddr_in6.sin6_addr;
2475 src = &saddr_in.sin_addr;
2478 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
2480 sprintf(port, ",%u", fio_net_port);
2484 snprintf(bind_str, sizeof(bind_str), "%s", port);
2486 snprintf(bind_str, sizeof(bind_str), "%s", bind_sock);
2488 log_info("fio: server listening on %s\n", bind_str);
2490 if (listen(sk, 4) < 0) {
2491 log_err("fio: listen: %s\n", strerror(errno));
2499 int fio_server_parse_host(const char *host, int ipv6, struct in_addr *inp,
2500 struct in6_addr *inp6)
2506 ret = inet_pton(AF_INET6, host, inp6);
2508 ret = inet_pton(AF_INET, host, inp);
2511 struct addrinfo *res, hints = {
2512 .ai_family = ipv6 ? AF_INET6 : AF_INET,
2513 .ai_socktype = SOCK_STREAM,
2516 ret = getaddrinfo(host, NULL, &hints, &res);
2518 log_err("fio: failed to resolve <%s> (%s)\n", host,
2524 memcpy(inp6, &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr, sizeof(*inp6));
2526 memcpy(inp, &((struct sockaddr_in *) res->ai_addr)->sin_addr, sizeof(*inp));
2536 * Parse a host/ip/port string. Reads from 'str'.
2541 * *ptr is the host, *port is the port, inp is the destination.
2543 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
2544 * For local domain sockets:
2545 * *ptr is the filename, *is_sock is 1.
2547 int fio_server_parse_string(const char *str, char **ptr, bool *is_sock,
2548 int *port, struct in_addr *inp,
2549 struct in6_addr *inp6, int *ipv6)
2551 const char *host = str;
2557 *port = fio_net_port;
2560 if (!strncmp(str, "sock:", 5)) {
2561 *ptr = strdup(str + 5);
2568 * Is it ip:<ip or host>:port
2570 if (!strncmp(host, "ip:", 3))
2572 else if (!strncmp(host, "ip4:", 4))
2574 else if (!strncmp(host, "ip6:", 4)) {
2577 } else if (host[0] == ':') {
2578 /* String is :port */
2581 if (!lport || lport > 65535) {
2582 log_err("fio: bad server port %u\n", lport);
2585 /* no hostname given, we are done */
2591 * If no port seen yet, check if there's a last ',' at the end
2594 portp = strchr(host, ',');
2598 lport = atoi(portp);
2599 if (!lport || lport > 65535) {
2600 log_err("fio: bad server port %u\n", lport);
2612 *ptr = strdup(host);
2614 if (fio_server_parse_host(*ptr, *ipv6, inp, inp6)) {
2621 *port = fio_net_port;
2627 * Server arg should be one of:
2629 * sock:/path/to/socket
2633 * Where sock uses unix domain sockets, and ip binds the server to
2634 * a specific interface. If no arguments are given to the server, it
2635 * uses IP and binds to 0.0.0.0.
2638 static int fio_handle_server_arg(void)
2640 int port = fio_net_port;
2644 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
2646 if (!fio_server_arg)
2649 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
2650 &port, &saddr_in.sin_addr,
2651 &saddr_in6.sin6_addr, &use_ipv6);
2653 if (!is_sock && bind_sock) {
2659 fio_net_port = port;
2660 saddr_in.sin_port = htons(port);
2661 saddr_in6.sin6_port = htons(port);
2665 static void sig_int(int sig)
2671 static void set_sig_handlers(void)
2673 struct sigaction act = {
2674 .sa_handler = sig_int,
2675 .sa_flags = SA_RESTART,
2678 sigaction(SIGINT, &act, NULL);
2680 /* Windows uses SIGBREAK as a quit signal from other applications */
2682 sigaction(SIGBREAK, &act, NULL);
2686 void fio_server_destroy_sk_key(void)
2688 pthread_key_delete(sk_out_key);
2691 int fio_server_create_sk_key(void)
2693 if (pthread_key_create(&sk_out_key, NULL)) {
2694 log_err("fio: can't create sk_out backend key\n");
2698 pthread_setspecific(sk_out_key, NULL);
2702 static int fio_server(void)
2706 dprint(FD_NET, "starting server\n");
2708 if (fio_handle_server_arg())
2714 /* if this is a child process, go handle the connection */
2715 if (fio_server_pipe_name != NULL) {
2716 ret = handle_connection_process();
2720 /* job to link child processes so they terminate together */
2721 hjob = windows_create_job();
2722 if (hjob == INVALID_HANDLE_VALUE)
2726 sk = fio_init_server_connection();
2730 ret = accept_loop(sk);
2734 if (fio_server_arg) {
2735 free(fio_server_arg);
2736 fio_server_arg = NULL;
2744 void fio_server_got_signal(int signal)
2746 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
2750 if (signal == SIGPIPE)
2753 log_info("\nfio: terminating on signal %d\n", signal);
2754 exit_backend = true;
2758 static int check_existing_pidfile(const char *pidfile)
2765 if (stat(pidfile, &sb))
2768 f = fopen(pidfile, "r");
2772 if (fread(buf, sb.st_size, 1, f) <= 0) {
2779 if (kill(pid, SIGCONT) < 0)
2780 return errno != ESRCH;
2785 static int write_pid(pid_t pid, const char *pidfile)
2789 fpid = fopen(pidfile, "w");
2791 log_err("fio: failed opening pid file %s\n", pidfile);
2795 fprintf(fpid, "%u\n", (unsigned int) pid);
2801 * If pidfile is specified, background us.
2803 int fio_start_server(char *pidfile)
2811 WSAStartup(MAKEWORD(2, 2), &wsd);
2815 return fio_server();
2817 if (check_existing_pidfile(pidfile)) {
2818 log_err("fio: pidfile %s exists and server appears alive\n",
2826 log_err("fio: failed server fork: %s\n", strerror(errno));
2830 ret = write_pid(pid, pidfile);
2836 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
2839 file = freopen("/dev/null", "r", stdin);
2843 file = freopen("/dev/null", "w", stdout);
2847 file = freopen("/dev/null", "w", stderr);
2866 void fio_server_set_arg(const char *arg)
2868 fio_server_arg = strdup(arg);
2872 void fio_server_internal_set(const char *arg)
2874 fio_server_pipe_name = strdup(arg);