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)
271 struct pollfd pfd = {
277 ret = poll(&pfd, 1, timeout);
281 log_err("fio: poll: %s\n", strerror(errno));
286 if (pfd.revents & events)
291 static int fio_recv_data(int sk, void *buf, unsigned int len, bool wait)
299 flags = OS_MSG_DONTWAIT;
302 int ret = recv(sk, p, len, flags);
312 else if (errno == EAGAIN || errno == EINTR) {
318 } while (!exit_backend);
326 static int verify_convert_cmd(struct fio_net_cmd *cmd)
330 cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16);
331 cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16);
333 crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ);
334 if (crc != cmd->cmd_crc16) {
335 log_err("fio: server bad crc on command (got %x, wanted %x)\n",
336 cmd->cmd_crc16, crc);
337 fprintf(f_err, "fio: server bad crc on command (got %x, wanted %x)\n",
338 cmd->cmd_crc16, crc);
342 cmd->version = le16_to_cpu(cmd->version);
343 cmd->opcode = le16_to_cpu(cmd->opcode);
344 cmd->flags = le32_to_cpu(cmd->flags);
345 cmd->tag = le64_to_cpu(cmd->tag);
346 cmd->pdu_len = le32_to_cpu(cmd->pdu_len);
348 switch (cmd->version) {
352 log_err("fio: bad server cmd version %d\n", cmd->version);
353 fprintf(f_err, "fio: client/server version mismatch (%d != %d)\n",
354 cmd->version, FIO_SERVER_VER);
358 if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) {
359 log_err("fio: command payload too large: %u\n", cmd->pdu_len);
367 * Read (and defragment, if necessary) incoming commands
369 struct fio_net_cmd *fio_net_recv_cmd(int sk, bool wait)
371 struct fio_net_cmd cmd, *tmp, *cmdret = NULL;
372 size_t cmd_size = 0, pdu_offset = 0;
378 ret = fio_recv_data(sk, &cmd, sizeof(cmd), wait);
382 /* We have a command, verify it and swap if need be */
383 ret = verify_convert_cmd(&cmd);
388 /* if this is text, add room for \0 at the end */
389 cmd_size = sizeof(cmd) + cmd.pdu_len + 1;
392 cmd_size += cmd.pdu_len;
394 if (cmd_size / 1024 > FIO_SERVER_MAX_CMD_MB * 1024) {
395 log_err("fio: cmd+pdu too large (%llu)\n", (unsigned long long) cmd_size);
400 tmp = realloc(cmdret, cmd_size);
402 log_err("fio: server failed allocating cmd\n");
409 memcpy(cmdret, &cmd, sizeof(cmd));
410 else if (cmdret->opcode != cmd.opcode) {
411 log_err("fio: fragment opcode mismatch (%d != %d)\n",
412 cmdret->opcode, cmd.opcode);
420 /* There's payload, get it */
421 pdu = (char *) cmdret->payload + pdu_offset;
422 ret = fio_recv_data(sk, pdu, cmd.pdu_len, wait);
426 /* Verify payload crc */
427 crc = fio_crc16(pdu, cmd.pdu_len);
428 if (crc != cmd.pdu_crc16) {
429 log_err("fio: server bad crc on payload ");
430 log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc);
435 pdu_offset += cmd.pdu_len;
437 cmdret->pdu_len += cmd.pdu_len;
439 } while (cmd.flags & FIO_NET_CMD_F_MORE);
445 /* zero-terminate text input */
446 if (cmdret->pdu_len) {
447 if (cmdret->opcode == FIO_NET_CMD_TEXT) {
448 struct cmd_text_pdu *__pdu = (struct cmd_text_pdu *) cmdret->payload;
449 char *buf = (char *) __pdu->buf;
450 int len = le32_to_cpu(__pdu->buf_len);
453 } else if (cmdret->opcode == FIO_NET_CMD_JOB) {
454 struct cmd_job_pdu *__pdu = (struct cmd_job_pdu *) cmdret->payload;
455 char *buf = (char *) __pdu->buf;
456 int len = le32_to_cpu(__pdu->buf_len);
462 /* frag flag is internal */
463 cmdret->flags &= ~FIO_NET_CMD_F_MORE;
469 static void add_reply(uint64_t tag, struct flist_head *list)
471 struct fio_net_cmd_reply *reply;
473 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
474 flist_add_tail(&reply->list, list);
477 static uint64_t alloc_reply(uint64_t tag, uint16_t opcode)
479 struct fio_net_cmd_reply *reply;
481 reply = calloc(1, sizeof(*reply));
482 INIT_FLIST_HEAD(&reply->list);
483 fio_gettime(&reply->ts, NULL);
484 reply->saved_tag = tag;
485 reply->opcode = opcode;
487 return (uintptr_t) reply;
490 static void free_reply(uint64_t tag)
492 struct fio_net_cmd_reply *reply;
494 reply = (struct fio_net_cmd_reply *) (uintptr_t) tag;
498 static void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu)
502 cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ));
504 pdu_len = le32_to_cpu(cmd->pdu_len);
505 cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len));
508 static void fio_net_cmd_crc(struct fio_net_cmd *cmd)
510 fio_net_cmd_crc_pdu(cmd, cmd->payload);
513 int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size,
514 uint64_t *tagptr, struct flist_head *list)
516 struct fio_net_cmd *cmd = NULL;
517 size_t this_len, cur_len = 0;
523 tag = *tagptr = alloc_reply(*tagptr, opcode);
525 tag = tagptr ? *tagptr : 0;
529 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
530 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
532 if (!cmd || cur_len < sizeof(*cmd) + this_len) {
536 cur_len = sizeof(*cmd) + this_len;
537 cmd = malloc(cur_len);
540 fio_init_net_cmd(cmd, opcode, buf, this_len, tag);
543 cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE);
545 fio_net_cmd_crc(cmd);
547 ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len);
550 } while (!ret && size);
556 add_reply(tag, list);
565 static struct sk_entry *fio_net_prep_cmd(uint16_t opcode, void *buf,
566 size_t size, uint64_t *tagptr,
569 struct sk_entry *entry;
571 entry = smalloc(sizeof(*entry));
575 INIT_FLIST_HEAD(&entry->next);
576 entry->opcode = opcode;
577 if (flags & SK_F_COPY) {
578 entry->buf = smalloc(size);
579 memcpy(entry->buf, buf, size);
585 entry->tag = *tagptr;
588 entry->flags = flags;
592 static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry);
594 static void fio_net_queue_entry(struct sk_entry *entry)
596 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
598 if (entry->flags & SK_F_INLINE)
599 handle_sk_entry(sk_out, entry);
602 flist_add_tail(&entry->list, &sk_out->list);
605 fio_sem_up(&sk_out->wait);
609 static int fio_net_queue_cmd(uint16_t opcode, void *buf, off_t size,
610 uint64_t *tagptr, int flags)
612 struct sk_entry *entry;
614 entry = fio_net_prep_cmd(opcode, buf, size, tagptr, flags);
616 fio_net_queue_entry(entry);
623 static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag)
625 struct fio_net_cmd cmd;
627 fio_init_net_cmd(&cmd, opcode, NULL, 0, tag);
628 fio_net_cmd_crc(&cmd);
630 return fio_send_data(sk, &cmd, sizeof(cmd));
634 * If 'list' is non-NULL, then allocate and store the sent command for
635 * later verification.
637 int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag,
638 struct flist_head *list)
643 tag = alloc_reply(tag, opcode);
645 ret = fio_net_send_simple_stack_cmd(sk, opcode, tag);
654 add_reply(tag, list);
659 static int fio_net_queue_quit(void)
661 dprint(FD_NET, "server: sending quit\n");
663 return fio_net_queue_cmd(FIO_NET_CMD_QUIT, NULL, 0, NULL, SK_F_SIMPLE);
666 int fio_net_send_quit(int sk)
668 dprint(FD_NET, "server: sending quit\n");
670 return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL);
673 static int fio_net_send_ack(struct fio_net_cmd *cmd, int error, int signal)
675 struct cmd_end_pdu epdu;
681 epdu.error = __cpu_to_le32(error);
682 epdu.signal = __cpu_to_le32(signal);
683 return fio_net_queue_cmd(FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, SK_F_COPY);
686 static int fio_net_queue_stop(int error, int signal)
688 dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal);
689 return fio_net_send_ack(NULL, error, signal);
693 static void fio_server_add_fork_item(struct ffi_element *element, struct flist_head *list)
695 struct fio_fork_item *ffi;
697 ffi = malloc(sizeof(*ffi));
701 ffi->element = *element;
702 flist_add_tail(&ffi->list, list);
705 static void fio_server_add_conn_pid(struct flist_head *conn_list, HANDLE hProcess)
707 struct ffi_element element = {.hProcess = hProcess, .is_thread=FALSE};
708 dprint(FD_NET, "server: forked off connection job (tid=%u)\n", (int) element.thread);
710 fio_server_add_fork_item(&element, conn_list);
713 static void fio_server_add_job_pid(struct flist_head *job_list, pthread_t thread)
715 struct ffi_element element = {.thread = thread, .is_thread=TRUE};
716 dprint(FD_NET, "server: forked off job job (tid=%u)\n", (int) element.thread);
717 fio_server_add_fork_item(&element, job_list);
720 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
724 if (ffi->element.is_thread) {
726 ret = pthread_kill(ffi->element.thread, 0);
729 pthread_join(ffi->element.thread, (void**) &rev_val); /*if the thread is dead, then join it to get status*/
731 ffi->exitval = rev_val;
733 log_err("thread (tid=%u) exited with %x\n", (int) ffi->element.thread, (int) ffi->exitval);
734 dprint(FD_PROCESS, "thread (tid=%u) exited with %x\n", (int) ffi->element.thread, (int) ffi->exitval);
739 GetExitCodeProcess(ffi->element.hProcess, &exit_val);
741 if (exit_val != STILL_ACTIVE) {
742 dprint(FD_PROCESS, "process %u exited with %d\n", GetProcessId(ffi->element.hProcess), exit_val);
744 ffi->exitval = exit_val;
749 static void fio_server_add_fork_item(pid_t pid, struct flist_head *list)
751 struct fio_fork_item *ffi;
753 ffi = malloc(sizeof(*ffi));
758 flist_add_tail(&ffi->list, list);
761 static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid)
763 dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid);
764 fio_server_add_fork_item(pid, conn_list);
767 static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid)
769 dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid);
770 fio_server_add_fork_item(pid, job_list);
773 static void fio_server_check_fork_item(struct fio_fork_item *ffi)
777 ret = waitpid(ffi->pid, &status, WNOHANG);
779 if (errno == ECHILD) {
780 log_err("fio: connection pid %u disappeared\n", (int) ffi->pid);
783 log_err("fio: waitpid: %s\n", strerror(errno));
784 } else if (ret == ffi->pid) {
785 if (WIFSIGNALED(status)) {
786 ffi->signal = WTERMSIG(status);
789 if (WIFEXITED(status)) {
790 if (WEXITSTATUS(status))
791 ffi->exitval = WEXITSTATUS(status);
798 static void fio_server_fork_item_done(struct fio_fork_item *ffi, bool stop)
801 if (ffi->element.is_thread)
802 dprint(FD_NET, "tid %u exited, sig=%u, exitval=%d\n", (int) ffi->element.thread, ffi->signal, ffi->exitval);
804 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) GetProcessId(ffi->element.hProcess), ffi->signal, ffi->exitval);
805 CloseHandle(ffi->element.hProcess);
806 ffi->element.hProcess = INVALID_HANDLE_VALUE;
809 dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval);
813 * Fold STOP and QUIT...
816 fio_net_queue_stop(ffi->exitval, ffi->signal);
817 fio_net_queue_quit();
820 flist_del(&ffi->list);
824 static void fio_server_check_fork_items(struct flist_head *list, bool stop)
826 struct flist_head *entry, *tmp;
827 struct fio_fork_item *ffi;
829 flist_for_each_safe(entry, tmp, list) {
830 ffi = flist_entry(entry, struct fio_fork_item, list);
832 fio_server_check_fork_item(ffi);
835 fio_server_fork_item_done(ffi, stop);
839 static void fio_server_check_jobs(struct flist_head *job_list)
841 fio_server_check_fork_items(job_list, true);
844 static void fio_server_check_conns(struct flist_head *conn_list)
846 fio_server_check_fork_items(conn_list, false);
849 static int handle_load_file_cmd(struct fio_net_cmd *cmd)
851 struct cmd_load_file_pdu *pdu = (struct cmd_load_file_pdu *) cmd->payload;
852 void *file_name = pdu->file;
853 struct cmd_start_pdu spdu;
855 dprint(FD_NET, "server: loading local file %s\n", (char *) file_name);
857 pdu->name_len = le16_to_cpu(pdu->name_len);
858 pdu->client_type = le16_to_cpu(pdu->client_type);
860 if (parse_jobs_ini(file_name, 0, 0, pdu->client_type)) {
861 fio_net_queue_quit();
865 spdu.jobs = cpu_to_le32(thread_number);
866 spdu.stat_outputs = cpu_to_le32(stat_number);
867 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
872 static void *fio_backend_thread(void *data)
875 struct sk_out *sk_out = (struct sk_out *) data;
877 sk_out_assign(sk_out);
879 ret = fio_backend(sk_out);
882 pthread_exit((void*) (intptr_t) ret);
887 static int handle_run_cmd(struct sk_out *sk_out, struct flist_head *job_list,
888 struct fio_net_cmd *cmd)
898 /* both this thread and backend_thread call sk_out_assign() to double increment
899 * the ref count. This ensures struct is valid until both threads are done with it
901 sk_out_assign(sk_out);
902 ret = pthread_create(&thread, NULL, fio_backend_thread, sk_out);
904 log_err("pthread_create: %s\n", strerror(ret));
908 fio_server_add_job_pid(job_list, thread);
914 sk_out_assign(sk_out);
917 fio_server_add_job_pid(job_list, pid);
921 ret = fio_backend(sk_out);
929 static int handle_job_cmd(struct fio_net_cmd *cmd)
931 struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload;
932 void *buf = pdu->buf;
933 struct cmd_start_pdu spdu;
935 pdu->buf_len = le32_to_cpu(pdu->buf_len);
936 pdu->client_type = le32_to_cpu(pdu->client_type);
938 if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) {
939 fio_net_queue_quit();
943 spdu.jobs = cpu_to_le32(thread_number);
944 spdu.stat_outputs = cpu_to_le32(stat_number);
946 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
950 static int handle_jobline_cmd(struct fio_net_cmd *cmd)
952 void *pdu = cmd->payload;
953 struct cmd_single_line_pdu *cslp;
954 struct cmd_line_pdu *clp;
955 unsigned long offset;
956 struct cmd_start_pdu spdu;
961 clp->lines = le16_to_cpu(clp->lines);
962 clp->client_type = le16_to_cpu(clp->client_type);
963 argv = malloc(clp->lines * sizeof(char *));
964 offset = sizeof(*clp);
966 dprint(FD_NET, "server: %d command line args\n", clp->lines);
968 for (i = 0; i < clp->lines; i++) {
970 argv[i] = (char *) cslp->text;
972 offset += sizeof(*cslp) + le16_to_cpu(cslp->len);
973 dprint(FD_NET, "server: %d: %s\n", i, argv[i]);
976 if (parse_cmd_line(clp->lines, argv, clp->client_type)) {
977 fio_net_queue_quit();
984 spdu.jobs = cpu_to_le32(thread_number);
985 spdu.stat_outputs = cpu_to_le32(stat_number);
987 fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY);
991 static int handle_probe_cmd(struct fio_net_cmd *cmd)
993 struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload;
994 uint64_t tag = cmd->tag;
995 struct cmd_probe_reply_pdu probe = {
996 #ifdef CONFIG_BIG_ENDIAN
1001 .bpp = sizeof(void *),
1002 .cpus = __cpu_to_le32(cpus_online()),
1005 dprint(FD_NET, "server: sending probe reply\n");
1007 strcpy(me, (char *) pdu->server);
1009 gethostname((char *) probe.hostname, sizeof(probe.hostname));
1010 snprintf((char *) probe.fio_version, sizeof(probe.fio_version), "%s",
1011 fio_version_string);
1014 * If the client supports compression and we do too, then enable it
1016 if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) {
1017 probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB);
1024 return fio_net_queue_cmd(FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, SK_F_COPY);
1027 static int handle_send_eta_cmd(struct fio_net_cmd *cmd)
1029 struct jobs_eta *je;
1030 uint64_t tag = cmd->tag;
1034 dprint(FD_NET, "server sending status\n");
1037 * Fake ETA return if we don't have a local one, otherwise the client
1038 * will end up timing out waiting for a response to the ETA request
1040 je = get_jobs_eta(true, &size);
1043 je = calloc(1, size);
1045 je->nr_running = cpu_to_le32(je->nr_running);
1046 je->nr_ramp = cpu_to_le32(je->nr_ramp);
1047 je->nr_pending = cpu_to_le32(je->nr_pending);
1048 je->nr_setting_up = cpu_to_le32(je->nr_setting_up);
1049 je->files_open = cpu_to_le32(je->files_open);
1051 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1052 je->m_rate[i] = cpu_to_le64(je->m_rate[i]);
1053 je->t_rate[i] = cpu_to_le64(je->t_rate[i]);
1054 je->m_iops[i] = cpu_to_le32(je->m_iops[i]);
1055 je->t_iops[i] = cpu_to_le32(je->t_iops[i]);
1056 je->rate[i] = cpu_to_le64(je->rate[i]);
1057 je->iops[i] = cpu_to_le32(je->iops[i]);
1060 je->elapsed_sec = cpu_to_le64(je->elapsed_sec);
1061 je->eta_sec = cpu_to_le64(je->eta_sec);
1062 je->nr_threads = cpu_to_le32(je->nr_threads);
1063 je->is_pow2 = cpu_to_le32(je->is_pow2);
1064 je->unit_base = cpu_to_le32(je->unit_base);
1067 fio_net_queue_cmd(FIO_NET_CMD_ETA, je, size, &tag, SK_F_FREE);
1071 static int send_update_job_reply(uint64_t __tag, int error)
1073 uint64_t tag = __tag;
1076 pdu_error = __cpu_to_le32(error);
1077 return fio_net_queue_cmd(FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, SK_F_COPY);
1080 static int handle_update_job_cmd(struct fio_net_cmd *cmd)
1082 struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload;
1083 struct thread_data *td;
1086 tnumber = le32_to_cpu(pdu->thread_number);
1088 dprint(FD_NET, "server: updating options for job %u\n", tnumber);
1090 if (!tnumber || tnumber > thread_number) {
1091 send_update_job_reply(cmd->tag, ENODEV);
1095 td = tnumber_to_td(tnumber);
1096 convert_thread_options_to_cpu(&td->o, &pdu->top);
1097 send_update_job_reply(cmd->tag, 0);
1101 static int handle_trigger_cmd(struct fio_net_cmd *cmd, struct flist_head *job_list)
1103 struct cmd_vtrigger_pdu *pdu = (struct cmd_vtrigger_pdu *) cmd->payload;
1104 char *buf = (char *) pdu->cmd;
1105 struct all_io_list *rep;
1108 pdu->len = le16_to_cpu(pdu->len);
1109 buf[pdu->len] = '\0';
1111 rep = get_all_io_list(IO_LIST_ALL, &sz);
1113 struct all_io_list state;
1115 state.threads = cpu_to_le64((uint64_t) 0);
1116 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, &state, sizeof(state), NULL, SK_F_COPY | SK_F_INLINE);
1118 fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, rep, sz, NULL, SK_F_FREE | SK_F_INLINE);
1120 fio_terminate_threads(TERMINATE_ALL, TERMINATE_ALL);
1121 fio_server_check_jobs(job_list);
1126 static int handle_command(struct sk_out *sk_out, struct flist_head *job_list,
1127 struct fio_net_cmd *cmd)
1131 dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n",
1132 fio_server_op(cmd->opcode), cmd->pdu_len,
1133 (unsigned long long) cmd->tag);
1135 switch (cmd->opcode) {
1136 case FIO_NET_CMD_QUIT:
1137 fio_terminate_threads(TERMINATE_ALL, TERMINATE_ALL);
1140 case FIO_NET_CMD_EXIT:
1141 exit_backend = true;
1143 case FIO_NET_CMD_LOAD_FILE:
1144 ret = handle_load_file_cmd(cmd);
1146 case FIO_NET_CMD_JOB:
1147 ret = handle_job_cmd(cmd);
1149 case FIO_NET_CMD_JOBLINE:
1150 ret = handle_jobline_cmd(cmd);
1152 case FIO_NET_CMD_PROBE:
1153 ret = handle_probe_cmd(cmd);
1155 case FIO_NET_CMD_SEND_ETA:
1156 ret = handle_send_eta_cmd(cmd);
1158 case FIO_NET_CMD_RUN:
1159 ret = handle_run_cmd(sk_out, job_list, cmd);
1161 case FIO_NET_CMD_UPDATE_JOB:
1162 ret = handle_update_job_cmd(cmd);
1164 case FIO_NET_CMD_VTRIGGER:
1165 ret = handle_trigger_cmd(cmd, job_list);
1167 case FIO_NET_CMD_SENDFILE: {
1168 struct cmd_sendfile_reply *in;
1169 struct cmd_reply *rep;
1171 rep = (struct cmd_reply *) (uintptr_t) cmd->tag;
1173 in = (struct cmd_sendfile_reply *) cmd->payload;
1174 in->size = le32_to_cpu(in->size);
1175 in->error = le32_to_cpu(in->error);
1178 rep->error = in->error;
1181 rep->data = smalloc(in->size);
1184 rep->error = ENOMEM;
1186 rep->size = in->size;
1187 memcpy(rep->data, in->data, in->size);
1190 fio_sem_up(&rep->lock);
1194 log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode));
1202 * Send a command with a separate PDU, not inlined in the command
1204 static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf,
1205 off_t size, uint64_t tag, uint32_t flags)
1207 struct fio_net_cmd cmd;
1208 struct iovec iov[2];
1212 iov[0].iov_base = (void *) &cmd;
1213 iov[0].iov_len = sizeof(cmd);
1216 uint32_t this_flags = flags;
1219 if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU)
1220 this_len = FIO_SERVER_MAX_FRAGMENT_PDU;
1222 if (this_len < size)
1223 this_flags |= FIO_NET_CMD_F_MORE;
1225 __fio_init_net_cmd(&cmd, opcode, this_len, tag);
1226 cmd.flags = __cpu_to_le32(this_flags);
1227 fio_net_cmd_crc_pdu(&cmd, buf);
1229 iov[1].iov_base = (void *) buf;
1230 iov[1].iov_len = this_len;
1232 ret = fio_sendv_data(sk, iov, 2);
1235 } while (!ret && size);
1240 static void finish_entry(struct sk_entry *entry)
1242 if (entry->flags & SK_F_FREE)
1244 else if (entry->flags & SK_F_COPY)
1250 static void entry_set_flags(struct sk_entry *entry, struct flist_head *list,
1251 unsigned int *flags)
1253 if (!flist_empty(list))
1254 *flags = FIO_NET_CMD_F_MORE;
1259 static int send_vec_entry(struct sk_out *sk_out, struct sk_entry *first)
1264 entry_set_flags(first, &first->next, &flags);
1266 ret = fio_send_cmd_ext_pdu(sk_out->sk, first->opcode, first->buf,
1267 first->size, first->tag, flags);
1269 while (!flist_empty(&first->next)) {
1270 struct sk_entry *next;
1272 next = flist_first_entry(&first->next, struct sk_entry, list);
1273 flist_del_init(&next->list);
1275 entry_set_flags(next, &first->next, &flags);
1277 ret += fio_send_cmd_ext_pdu(sk_out->sk, next->opcode, next->buf,
1278 next->size, next->tag, flags);
1285 static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry)
1289 fio_sem_down(&sk_out->xmit);
1291 if (entry->flags & SK_F_VEC)
1292 ret = send_vec_entry(sk_out, entry);
1293 else if (entry->flags & SK_F_SIMPLE) {
1294 ret = fio_net_send_simple_cmd(sk_out->sk, entry->opcode,
1297 ret = fio_net_send_cmd(sk_out->sk, entry->opcode, entry->buf,
1298 entry->size, &entry->tag, NULL);
1301 fio_sem_up(&sk_out->xmit);
1304 log_err("fio: failed handling cmd %s\n", fio_server_op(entry->opcode));
1306 finish_entry(entry);
1310 static int handle_xmits(struct sk_out *sk_out)
1312 struct sk_entry *entry;
1317 if (flist_empty(&sk_out->list)) {
1322 flist_splice_init(&sk_out->list, &list);
1325 while (!flist_empty(&list)) {
1326 entry = flist_first_entry(&list, struct sk_entry, list);
1327 flist_del(&entry->list);
1328 ret += handle_sk_entry(sk_out, entry);
1334 static int handle_connection(struct sk_out *sk_out)
1336 struct fio_net_cmd *cmd = NULL;
1337 FLIST_HEAD(job_list);
1343 while (!exit_backend) {
1344 struct pollfd pfd = {
1352 if (!flist_empty(&job_list))
1355 handle_xmits(sk_out);
1357 ret = poll(&pfd, 1, 0);
1361 log_err("fio: poll: %s\n", strerror(errno));
1364 fio_server_check_jobs(&job_list);
1365 fio_sem_down_timeout(&sk_out->wait, timeout);
1369 if (pfd.revents & POLLIN)
1371 if (pfd.revents & (POLLERR|POLLHUP)) {
1375 } while (!exit_backend);
1377 fio_server_check_jobs(&job_list);
1382 if (pfd.revents & POLLIN)
1383 cmd = fio_net_recv_cmd(sk_out->sk, true);
1389 ret = handle_command(sk_out, &job_list, cmd);
1400 handle_xmits(sk_out);
1404 __sk_out_drop(sk_out);
1408 /* get the address on this host bound by the input socket,
1409 * whether it is ipv6 or ipv4 */
1411 static int get_my_addr_str(int sk)
1413 struct sockaddr_in6 myaddr6 = { 0, };
1414 struct sockaddr_in myaddr4 = { 0, };
1415 struct sockaddr *sockaddr_p;
1421 len = sizeof(myaddr6);
1422 sockaddr_p = (struct sockaddr * )&myaddr6;
1423 net_addr = (char * )&myaddr6.sin6_addr;
1425 len = sizeof(myaddr4);
1426 sockaddr_p = (struct sockaddr * )&myaddr4;
1427 net_addr = (char * )&myaddr4.sin_addr;
1430 ret = getsockname(sk, sockaddr_p, &len);
1432 log_err("fio: getsockname: %s\n", strerror(errno));
1436 if (!inet_ntop(use_ipv6?AF_INET6:AF_INET, net_addr, client_sockaddr_str, INET6_ADDRSTRLEN - 1)) {
1437 log_err("inet_ntop: failed to convert addr to string\n");
1441 dprint(FD_NET, "fio server bound to addr %s\n", client_sockaddr_str);
1446 static int handle_connection_process(void)
1448 WSAPROTOCOL_INFO protocol_info;
1452 struct sk_out *sk_out;
1454 char *msg = (char *) "connected";
1456 log_info("server enter accept loop. ProcessID %d\n", GetCurrentProcessId());
1459 fio_server_pipe_name,
1460 GENERIC_READ | GENERIC_WRITE,
1465 if (hpipe == INVALID_HANDLE_VALUE) {
1466 log_err("couldnt open pipe %s error %lu\n",
1467 fio_server_pipe_name, GetLastError());
1471 if (!ReadFile(hpipe, &protocol_info, sizeof(protocol_info), &bytes_read, NULL)) {
1472 log_err("couldnt read pi from pipe %s error %lu\n", fio_server_pipe_name,
1476 if (use_ipv6) /* use protocol_info to create a duplicate of parents socket */
1477 sk = WSASocket(AF_INET6, SOCK_STREAM, 0, &protocol_info, 0, 0);
1479 sk = WSASocket(AF_INET, SOCK_STREAM, 0, &protocol_info, 0, 0);
1481 sk_out = scalloc(1, sizeof(*sk_out));
1489 sk_out->hProcess = INVALID_HANDLE_VALUE;
1490 INIT_FLIST_HEAD(&sk_out->list);
1491 __fio_sem_init(&sk_out->lock, FIO_SEM_UNLOCKED);
1492 __fio_sem_init(&sk_out->wait, FIO_SEM_LOCKED);
1493 __fio_sem_init(&sk_out->xmit, FIO_SEM_UNLOCKED);
1495 get_my_addr_str(sk);
1497 if (!WriteFile(hpipe, msg, strlen(msg), NULL, NULL)) {
1498 log_err("couldnt write pipe\n");
1504 sk_out_assign(sk_out);
1506 ret = handle_connection(sk_out);
1507 __sk_out_drop(sk_out);
1512 static int accept_loop(int listen_sk)
1514 struct sockaddr_in addr;
1515 struct sockaddr_in6 addr6;
1516 socklen_t len = use_ipv6 ? sizeof(addr6) : sizeof(addr);
1518 int ret = 0, sk, exitval = 0;
1519 FLIST_HEAD(conn_list);
1521 dprint(FD_NET, "server enter accept loop\n");
1523 fio_set_fd_nonblocking(listen_sk, "server");
1525 while (!exit_backend) {
1526 struct sk_out *sk_out;
1535 pfd.events = POLLIN;
1539 if (!flist_empty(&conn_list))
1542 ret = poll(&pfd, 1, timeout);
1546 log_err("fio: poll: %s\n", strerror(errno));
1549 fio_server_check_conns(&conn_list);
1553 if (pfd.revents & POLLIN)
1555 } while (!exit_backend);
1557 fio_server_check_conns(&conn_list);
1559 if (exit_backend || ret < 0)
1563 sk = accept(listen_sk, (struct sockaddr *) &addr6, &len);
1565 sk = accept(listen_sk, (struct sockaddr *) &addr, &len);
1568 log_err("fio: accept: %s\n", strerror(errno));
1573 from = inet_ntop(AF_INET6, (struct sockaddr *) &addr6.sin6_addr, buf, sizeof(buf));
1575 from = inet_ntop(AF_INET, (struct sockaddr *) &addr.sin_addr, buf, sizeof(buf));
1577 dprint(FD_NET, "server: connect from %s\n", from);
1579 sk_out = scalloc(1, sizeof(*sk_out));
1586 INIT_FLIST_HEAD(&sk_out->list);
1587 __fio_sem_init(&sk_out->lock, FIO_SEM_UNLOCKED);
1588 __fio_sem_init(&sk_out->wait, FIO_SEM_LOCKED);
1589 __fio_sem_init(&sk_out->xmit, FIO_SEM_UNLOCKED);
1592 hProcess = windows_handle_connection(hjob, sk);
1593 if (hProcess == INVALID_HANDLE_VALUE)
1595 sk_out->hProcess = hProcess;
1596 fio_server_add_conn_pid(&conn_list, hProcess);
1601 fio_server_add_conn_pid(&conn_list, pid);
1605 /* if error, it's already logged, non-fatal */
1606 get_my_addr_str(sk);
1609 * Assign sk_out here, it'll be dropped in handle_connection()
1610 * since that function calls _exit() when done
1612 sk_out_assign(sk_out);
1613 handle_connection(sk_out);
1620 int fio_server_text_output(int level, const char *buf, size_t len)
1622 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
1623 struct cmd_text_pdu *pdu;
1627 if (!sk_out || sk_out->sk == -1)
1630 tlen = sizeof(*pdu) + len;
1633 pdu->level = __cpu_to_le32(level);
1634 pdu->buf_len = __cpu_to_le32(len);
1636 gettimeofday(&tv, NULL);
1637 pdu->log_sec = __cpu_to_le64(tv.tv_sec);
1638 pdu->log_usec = __cpu_to_le64(tv.tv_usec);
1640 memcpy(pdu->buf, buf, len);
1642 fio_net_queue_cmd(FIO_NET_CMD_TEXT, pdu, tlen, NULL, SK_F_COPY);
1647 static void convert_io_stat(struct io_stat *dst, struct io_stat *src)
1649 dst->max_val = cpu_to_le64(src->max_val);
1650 dst->min_val = cpu_to_le64(src->min_val);
1651 dst->samples = cpu_to_le64(src->samples);
1654 * Encode to IEEE 754 for network transfer
1656 dst->mean.u.i = cpu_to_le64(fio_double_to_uint64(src->mean.u.f));
1657 dst->S.u.i = cpu_to_le64(fio_double_to_uint64(src->S.u.f));
1660 static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
1664 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1665 dst->max_run[i] = cpu_to_le64(src->max_run[i]);
1666 dst->min_run[i] = cpu_to_le64(src->min_run[i]);
1667 dst->max_bw[i] = cpu_to_le64(src->max_bw[i]);
1668 dst->min_bw[i] = cpu_to_le64(src->min_bw[i]);
1669 dst->iobytes[i] = cpu_to_le64(src->iobytes[i]);
1670 dst->agg[i] = cpu_to_le64(src->agg[i]);
1673 dst->kb_base = cpu_to_le32(src->kb_base);
1674 dst->unit_base = cpu_to_le32(src->unit_base);
1675 dst->groupid = cpu_to_le32(src->groupid);
1676 dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep);
1677 dst->sig_figs = cpu_to_le32(src->sig_figs);
1681 * Send a CMD_TS, which packs struct thread_stat and group_run_stats
1682 * into a single payload.
1684 void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs)
1686 struct cmd_ts_pdu p;
1688 size_t clat_prio_stats_extra_size = 0;
1689 size_t ss_extra_size = 0;
1690 size_t extended_buf_size = 0;
1692 void *extended_buf_wp;
1694 dprint(FD_NET, "server sending end stats\n");
1696 memset(&p, 0, sizeof(p));
1698 snprintf(p.ts.name, sizeof(p.ts.name), "%s", ts->name);
1699 snprintf(p.ts.verror, sizeof(p.ts.verror), "%s", ts->verror);
1700 snprintf(p.ts.description, sizeof(p.ts.description), "%s",
1703 p.ts.error = cpu_to_le32(ts->error);
1704 p.ts.thread_number = cpu_to_le32(ts->thread_number);
1705 p.ts.groupid = cpu_to_le32(ts->groupid);
1706 p.ts.pid = cpu_to_le32(ts->pid);
1707 p.ts.members = cpu_to_le32(ts->members);
1708 p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep);
1709 p.ts.ioprio = cpu_to_le32(ts->ioprio);
1710 p.ts.disable_prio_stat = cpu_to_le32(ts->disable_prio_stat);
1712 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1713 convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]);
1714 convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]);
1715 convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]);
1716 convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]);
1717 convert_io_stat(&p.ts.iops_stat[i], &ts->iops_stat[i]);
1719 convert_io_stat(&p.ts.sync_stat, &ts->sync_stat);
1721 p.ts.usr_time = cpu_to_le64(ts->usr_time);
1722 p.ts.sys_time = cpu_to_le64(ts->sys_time);
1723 p.ts.ctx = cpu_to_le64(ts->ctx);
1724 p.ts.minf = cpu_to_le64(ts->minf);
1725 p.ts.majf = cpu_to_le64(ts->majf);
1726 p.ts.clat_percentiles = cpu_to_le32(ts->clat_percentiles);
1727 p.ts.lat_percentiles = cpu_to_le32(ts->lat_percentiles);
1728 p.ts.slat_percentiles = cpu_to_le32(ts->slat_percentiles);
1729 p.ts.percentile_precision = cpu_to_le64(ts->percentile_precision);
1731 for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) {
1732 fio_fp64_t *src = &ts->percentile_list[i];
1733 fio_fp64_t *dst = &p.ts.percentile_list[i];
1735 dst->u.i = cpu_to_le64(fio_double_to_uint64(src->u.f));
1738 for (i = 0; i < FIO_IO_U_MAP_NR; i++) {
1739 p.ts.io_u_map[i] = cpu_to_le64(ts->io_u_map[i]);
1740 p.ts.io_u_submit[i] = cpu_to_le64(ts->io_u_submit[i]);
1741 p.ts.io_u_complete[i] = cpu_to_le64(ts->io_u_complete[i]);
1744 for (i = 0; i < FIO_IO_U_LAT_N_NR; i++)
1745 p.ts.io_u_lat_n[i] = cpu_to_le64(ts->io_u_lat_n[i]);
1746 for (i = 0; i < FIO_IO_U_LAT_U_NR; i++)
1747 p.ts.io_u_lat_u[i] = cpu_to_le64(ts->io_u_lat_u[i]);
1748 for (i = 0; i < FIO_IO_U_LAT_M_NR; i++)
1749 p.ts.io_u_lat_m[i] = cpu_to_le64(ts->io_u_lat_m[i]);
1751 for (i = 0; i < FIO_LAT_CNT; i++)
1752 for (j = 0; j < DDIR_RWDIR_CNT; j++)
1753 for (k = 0; k < FIO_IO_U_PLAT_NR; k++)
1754 p.ts.io_u_plat[i][j][k] = cpu_to_le64(ts->io_u_plat[i][j][k]);
1756 for (j = 0; j < FIO_IO_U_PLAT_NR; j++)
1757 p.ts.io_u_sync_plat[j] = cpu_to_le64(ts->io_u_sync_plat[j]);
1759 for (i = 0; i < DDIR_RWDIR_SYNC_CNT; i++)
1760 p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]);
1762 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1763 p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]);
1764 p.ts.drop_io_u[i] = cpu_to_le64(ts->drop_io_u[i]);
1767 p.ts.total_submit = cpu_to_le64(ts->total_submit);
1768 p.ts.total_complete = cpu_to_le64(ts->total_complete);
1769 p.ts.nr_zone_resets = cpu_to_le64(ts->nr_zone_resets);
1771 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1772 p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]);
1773 p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]);
1776 p.ts.total_run_time = cpu_to_le64(ts->total_run_time);
1777 p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error);
1778 p.ts.total_err_count = cpu_to_le64(ts->total_err_count);
1779 p.ts.first_error = cpu_to_le32(ts->first_error);
1780 p.ts.kb_base = cpu_to_le32(ts->kb_base);
1781 p.ts.unit_base = cpu_to_le32(ts->unit_base);
1783 p.ts.latency_depth = cpu_to_le32(ts->latency_depth);
1784 p.ts.latency_target = cpu_to_le64(ts->latency_target);
1785 p.ts.latency_window = cpu_to_le64(ts->latency_window);
1786 p.ts.latency_percentile.u.i = cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f));
1788 p.ts.sig_figs = cpu_to_le32(ts->sig_figs);
1790 p.ts.nr_block_infos = cpu_to_le64(ts->nr_block_infos);
1791 for (i = 0; i < p.ts.nr_block_infos; i++)
1792 p.ts.block_infos[i] = cpu_to_le32(ts->block_infos[i]);
1794 p.ts.ss_dur = cpu_to_le64(ts->ss_dur);
1795 p.ts.ss_state = cpu_to_le32(ts->ss_state);
1796 p.ts.ss_head = cpu_to_le32(ts->ss_head);
1797 p.ts.ss_limit.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_limit.u.f));
1798 p.ts.ss_slope.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_slope.u.f));
1799 p.ts.ss_deviation.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_deviation.u.f));
1800 p.ts.ss_criterion.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_criterion.u.f));
1802 p.ts.cachehit = cpu_to_le64(ts->cachehit);
1803 p.ts.cachemiss = cpu_to_le64(ts->cachemiss);
1805 convert_gs(&p.rs, rs);
1807 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1808 if (ts->nr_clat_prio[i])
1809 clat_prio_stats_extra_size += ts->nr_clat_prio[i] * sizeof(*ts->clat_prio[i]);
1811 extended_buf_size += clat_prio_stats_extra_size;
1813 dprint(FD_NET, "ts->ss_state = %d\n", ts->ss_state);
1814 if (ts->ss_state & FIO_SS_DATA)
1815 ss_extra_size = 2 * ts->ss_dur * sizeof(uint64_t);
1817 extended_buf_size += ss_extra_size;
1818 if (!extended_buf_size) {
1819 fio_net_queue_cmd(FIO_NET_CMD_TS, &p, sizeof(p), NULL, SK_F_COPY);
1823 extended_buf_size += sizeof(p);
1824 extended_buf = calloc(1, extended_buf_size);
1825 if (!extended_buf) {
1826 log_err("fio: failed to allocate FIO_NET_CMD_TS buffer\n");
1830 memcpy(extended_buf, &p, sizeof(p));
1831 extended_buf_wp = (struct cmd_ts_pdu *)extended_buf + 1;
1833 if (clat_prio_stats_extra_size) {
1834 for (i = 0; i < DDIR_RWDIR_CNT; i++) {
1835 struct clat_prio_stat *prio = (struct clat_prio_stat *) extended_buf_wp;
1837 for (j = 0; j < ts->nr_clat_prio[i]; j++) {
1838 for (k = 0; k < FIO_IO_U_PLAT_NR; k++)
1839 prio->io_u_plat[k] =
1840 cpu_to_le64(ts->clat_prio[i][j].io_u_plat[k]);
1841 convert_io_stat(&prio->clat_stat,
1842 &ts->clat_prio[i][j].clat_stat);
1843 prio->ioprio = cpu_to_le32(ts->clat_prio[i][j].ioprio);
1847 if (ts->nr_clat_prio[i]) {
1848 uint64_t offset = (char *)extended_buf_wp - (char *)extended_buf;
1849 struct cmd_ts_pdu *ptr = extended_buf;
1851 ptr->ts.clat_prio_offset[i] = cpu_to_le64(offset);
1852 ptr->ts.nr_clat_prio[i] = cpu_to_le32(ts->nr_clat_prio[i]);
1855 extended_buf_wp = prio;
1859 if (ss_extra_size) {
1860 uint64_t *ss_iops, *ss_bw;
1862 struct cmd_ts_pdu *ptr = extended_buf;
1864 dprint(FD_NET, "server sending steadystate ring buffers\n");
1867 ss_iops = (uint64_t *) extended_buf_wp;
1868 for (i = 0; i < ts->ss_dur; i++)
1869 ss_iops[i] = cpu_to_le64(ts->ss_iops_data[i]);
1871 offset = (char *)extended_buf_wp - (char *)extended_buf;
1872 ptr->ts.ss_iops_data_offset = cpu_to_le64(offset);
1873 extended_buf_wp = ss_iops + (int) ts->ss_dur;
1876 ss_bw = extended_buf_wp;
1877 for (i = 0; i < ts->ss_dur; i++)
1878 ss_bw[i] = cpu_to_le64(ts->ss_bw_data[i]);
1880 offset = (char *)extended_buf_wp - (char *)extended_buf;
1881 ptr->ts.ss_bw_data_offset = cpu_to_le64(offset);
1882 extended_buf_wp = ss_bw + (int) ts->ss_dur;
1885 fio_net_queue_cmd(FIO_NET_CMD_TS, extended_buf, extended_buf_size, NULL, SK_F_COPY);
1889 void fio_server_send_gs(struct group_run_stats *rs)
1891 struct group_run_stats gs;
1893 dprint(FD_NET, "server sending group run stats\n");
1895 convert_gs(&gs, rs);
1896 fio_net_queue_cmd(FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, SK_F_COPY);
1899 void fio_server_send_job_options(struct flist_head *opt_list,
1902 struct cmd_job_option pdu;
1903 struct flist_head *entry;
1905 if (flist_empty(opt_list))
1908 flist_for_each(entry, opt_list) {
1909 struct print_option *p;
1912 p = flist_entry(entry, struct print_option, list);
1913 memset(&pdu, 0, sizeof(pdu));
1916 pdu.global = __cpu_to_le16(1);
1920 pdu.groupid = cpu_to_le32(gid);
1922 len = strlen(p->name);
1923 if (len >= sizeof(pdu.name)) {
1924 len = sizeof(pdu.name) - 1;
1925 pdu.truncated = __cpu_to_le16(1);
1927 memcpy(pdu.name, p->name, len);
1929 len = strlen(p->value);
1930 if (len >= sizeof(pdu.value)) {
1931 len = sizeof(pdu.value) - 1;
1932 pdu.truncated = __cpu_to_le16(1);
1934 memcpy(pdu.value, p->value, len);
1936 fio_net_queue_cmd(FIO_NET_CMD_JOB_OPT, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1940 static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src)
1944 for (i = 0; i < 2; i++) {
1945 dst->ios[i] = cpu_to_le64(src->ios[i]);
1946 dst->merges[i] = cpu_to_le64(src->merges[i]);
1947 dst->sectors[i] = cpu_to_le64(src->sectors[i]);
1948 dst->ticks[i] = cpu_to_le64(src->ticks[i]);
1951 dst->io_ticks = cpu_to_le64(src->io_ticks);
1952 dst->time_in_queue = cpu_to_le64(src->time_in_queue);
1953 dst->slavecount = cpu_to_le32(src->slavecount);
1954 dst->max_util.u.i = cpu_to_le64(fio_double_to_uint64(src->max_util.u.f));
1957 static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src)
1961 snprintf((char *) dst->name, sizeof(dst->name), "%s", src->name);
1963 for (i = 0; i < 2; i++) {
1964 dst->s.ios[i] = cpu_to_le64(src->s.ios[i]);
1965 dst->s.merges[i] = cpu_to_le64(src->s.merges[i]);
1966 dst->s.sectors[i] = cpu_to_le64(src->s.sectors[i]);
1967 dst->s.ticks[i] = cpu_to_le64(src->s.ticks[i]);
1970 dst->s.io_ticks = cpu_to_le64(src->s.io_ticks);
1971 dst->s.time_in_queue = cpu_to_le64(src->s.time_in_queue);
1972 dst->s.msec = cpu_to_le64(src->s.msec);
1975 void fio_server_send_du(void)
1977 struct disk_util *du;
1978 struct flist_head *entry;
1979 struct cmd_du_pdu pdu;
1981 dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list));
1983 memset(&pdu, 0, sizeof(pdu));
1985 flist_for_each(entry, &disk_list) {
1986 du = flist_entry(entry, struct disk_util, list);
1988 convert_dus(&pdu.dus, &du->dus);
1989 convert_agg(&pdu.agg, &du->agg);
1991 fio_net_queue_cmd(FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, SK_F_COPY);
1997 static inline void __fio_net_prep_tail(z_stream *stream, void *out_pdu,
1998 struct sk_entry **last_entry,
1999 struct sk_entry *first)
2001 unsigned int this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream->avail_out;
2003 *last_entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
2004 NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE);
2006 flist_add_tail(&(*last_entry)->list, &first->next);
2010 * Deflates the next input given, creating as many new packets in the
2011 * linked list as necessary.
2013 static int __deflate_pdu_buffer(void *next_in, unsigned int next_sz, void **out_pdu,
2014 struct sk_entry **last_entry, z_stream *stream,
2015 struct sk_entry *first)
2019 stream->next_in = next_in;
2020 stream->avail_in = next_sz;
2022 if (!stream->avail_out) {
2023 __fio_net_prep_tail(stream, *out_pdu, last_entry, first);
2024 if (*last_entry == NULL)
2027 *out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
2029 stream->avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
2030 stream->next_out = *out_pdu;
2033 ret = deflate(stream, Z_BLOCK);
2039 } while (stream->avail_in);
2044 static int __fio_append_iolog_gz_hist(struct sk_entry *first, struct io_log *log,
2045 struct io_logs *cur_log, z_stream *stream)
2047 struct sk_entry *entry;
2050 int sample_sz = log_entry_sz(log);
2052 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
2053 stream->avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
2054 stream->next_out = out_pdu;
2056 for (i = 0; i < cur_log->nr_samples; i++) {
2057 struct io_sample *s;
2058 struct io_u_plat_entry *cur_plat_entry, *prev_plat_entry;
2059 uint64_t *cur_plat, *prev_plat;
2061 s = get_sample(log, cur_log, i);
2062 ret = __deflate_pdu_buffer(s, sample_sz, &out_pdu, &entry, stream, first);
2066 /* Do the subtraction on server side so that client doesn't have to
2067 * reconstruct our linked list from packets.
2069 cur_plat_entry = s->data.plat_entry;
2070 prev_plat_entry = flist_first_entry(&cur_plat_entry->list, struct io_u_plat_entry, list);
2071 cur_plat = cur_plat_entry->io_u_plat;
2072 prev_plat = prev_plat_entry->io_u_plat;
2074 for (j = 0; j < FIO_IO_U_PLAT_NR; j++) {
2075 cur_plat[j] -= prev_plat[j];
2078 flist_del(&prev_plat_entry->list);
2079 free(prev_plat_entry);
2081 ret = __deflate_pdu_buffer(cur_plat_entry, sizeof(*cur_plat_entry),
2082 &out_pdu, &entry, stream, first);
2088 __fio_net_prep_tail(stream, out_pdu, &entry, first);
2089 return entry == NULL;
2092 static int __fio_append_iolog_gz(struct sk_entry *first, struct io_log *log,
2093 struct io_logs *cur_log, z_stream *stream)
2095 unsigned int this_len;
2099 if (log->log_type == IO_LOG_TYPE_HIST)
2100 return __fio_append_iolog_gz_hist(first, log, cur_log, stream);
2102 stream->next_in = (void *) cur_log->log;
2103 stream->avail_in = cur_log->nr_samples * log_entry_sz(log);
2106 struct sk_entry *entry;
2109 * Dirty - since the log is potentially huge, compress it into
2110 * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving
2111 * side defragment it.
2113 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
2115 stream->avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
2116 stream->next_out = out_pdu;
2117 ret = deflate(stream, Z_BLOCK);
2118 /* may be Z_OK, or Z_STREAM_END */
2124 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream->avail_out;
2126 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
2127 NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE);
2132 flist_add_tail(&entry->list, &first->next);
2133 } while (stream->avail_in);
2138 static int fio_append_iolog_gz(struct sk_entry *first, struct io_log *log)
2147 if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK)
2150 while (!flist_empty(&log->io_logs)) {
2151 struct io_logs *cur_log;
2153 cur_log = flist_first_entry(&log->io_logs, struct io_logs, list);
2154 flist_del_init(&cur_log->list);
2156 ret = __fio_append_iolog_gz(first, log, cur_log, &stream);
2161 ret = deflate(&stream, Z_FINISH);
2163 while (ret != Z_STREAM_END) {
2164 struct sk_entry *entry;
2165 unsigned int this_len;
2168 out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU);
2169 stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU;
2170 stream.next_out = out_pdu;
2172 ret = deflate(&stream, Z_FINISH);
2173 /* may be Z_OK, or Z_STREAM_END */
2179 this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out;
2181 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len,
2182 NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE);
2187 flist_add_tail(&entry->list, &first->next);
2190 ret = deflateEnd(&stream);
2197 static int fio_append_iolog_gz(struct sk_entry *first, struct io_log *log)
2203 static int fio_append_gz_chunks(struct sk_entry *first, struct io_log *log)
2205 struct sk_entry *entry;
2206 struct flist_head *node;
2209 pthread_mutex_lock(&log->chunk_lock);
2210 flist_for_each(node, &log->chunk_list) {
2211 struct iolog_compress *c;
2213 c = flist_entry(node, struct iolog_compress, list);
2214 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, c->buf, c->len,
2215 NULL, SK_F_VEC | SK_F_INLINE);
2220 flist_add_tail(&entry->list, &first->next);
2222 pthread_mutex_unlock(&log->chunk_lock);
2226 static int fio_append_text_log(struct sk_entry *first, struct io_log *log)
2228 struct sk_entry *entry;
2231 while (!flist_empty(&log->io_logs)) {
2232 struct io_logs *cur_log;
2235 cur_log = flist_first_entry(&log->io_logs, struct io_logs, list);
2236 flist_del_init(&cur_log->list);
2238 size = cur_log->nr_samples * log_entry_sz(log);
2240 entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, cur_log->log, size,
2241 NULL, SK_F_VEC | SK_F_INLINE);
2246 flist_add_tail(&entry->list, &first->next);
2252 int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name)
2254 struct cmd_iolog_pdu pdu = {
2255 .nr_samples = cpu_to_le64(iolog_nr_samples(log)),
2256 .thread_number = cpu_to_le32(td->thread_number),
2257 .log_type = cpu_to_le32(log->log_type),
2258 .log_hist_coarseness = cpu_to_le32(log->hist_coarseness),
2260 struct sk_entry *first;
2261 struct flist_head *entry;
2264 if (!flist_empty(&log->chunk_list))
2265 pdu.compressed = __cpu_to_le32(STORE_COMPRESSED);
2267 pdu.compressed = __cpu_to_le32(XMIT_COMPRESSED);
2271 snprintf((char *) pdu.name, sizeof(pdu.name), "%s", name);
2274 * We can't do this for a pre-compressed log, but for that case,
2275 * log->nr_samples is zero anyway.
2277 flist_for_each(entry, &log->io_logs) {
2278 struct io_logs *cur_log;
2281 cur_log = flist_entry(entry, struct io_logs, list);
2283 for (i = 0; i < cur_log->nr_samples; i++) {
2284 struct io_sample *s = get_sample(log, cur_log, i);
2286 s->time = cpu_to_le64(s->time);
2287 s->data.val = cpu_to_le64(s->data.val);
2288 s->__ddir = __cpu_to_le32(s->__ddir);
2289 s->bs = cpu_to_le64(s->bs);
2291 if (log->log_offset) {
2292 struct io_sample_offset *so = (void *) s;
2294 so->offset = cpu_to_le64(so->offset);
2300 * Assemble header entry first
2302 first = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, &pdu, sizeof(pdu), NULL, SK_F_VEC | SK_F_INLINE | SK_F_COPY);
2307 * Now append actual log entries. If log compression was enabled on
2308 * the job, just send out the compressed chunks directly. If we
2309 * have a plain log, compress if we can, then send. Otherwise, send
2310 * the plain text output.
2312 if (!flist_empty(&log->chunk_list))
2313 ret = fio_append_gz_chunks(first, log);
2315 ret = fio_append_iolog_gz(first, log);
2317 ret = fio_append_text_log(first, log);
2319 fio_net_queue_entry(first);
2323 void fio_server_send_add_job(struct thread_data *td)
2325 struct cmd_add_job_pdu pdu = {
2326 .thread_number = cpu_to_le32(td->thread_number),
2327 .groupid = cpu_to_le32(td->groupid),
2330 convert_thread_options_to_net(&pdu.top, &td->o);
2332 fio_net_queue_cmd(FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL,
2336 void fio_server_send_start(struct thread_data *td)
2338 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
2340 assert(sk_out->sk != -1);
2342 fio_net_queue_cmd(FIO_NET_CMD_SERVER_START, NULL, 0, NULL, SK_F_SIMPLE);
2345 int fio_server_get_verify_state(const char *name, int threadnumber,
2348 struct thread_io_list *s;
2349 struct cmd_sendfile out;
2350 struct cmd_reply *rep;
2355 dprint(FD_NET, "server: request verify state\n");
2357 rep = smalloc(sizeof(*rep));
2361 __fio_sem_init(&rep->lock, FIO_SEM_LOCKED);
2365 verify_state_gen_name((char *) out.path, sizeof(out.path), name, me,
2367 tag = (uint64_t) (uintptr_t) rep;
2368 fio_net_queue_cmd(FIO_NET_CMD_SENDFILE, &out, sizeof(out), &tag,
2372 * Wait for the backend to receive the reply
2374 if (fio_sem_down_timeout(&rep->lock, 10000)) {
2375 log_err("fio: timed out waiting for reply\n");
2381 log_err("fio: failure on receiving state file %s: %s\n",
2382 out.path, strerror(rep->error));
2387 fio_net_queue_quit();
2392 * The format is verify_state_hdr, then thread_io_list. Verify
2393 * the header, and the thread_io_list checksum
2395 s = rep->data + sizeof(struct verify_state_hdr);
2396 if (verify_state_hdr(rep->data, s)) {
2402 * Don't need the header from now, copy just the thread_io_list
2405 rep->size -= sizeof(struct verify_state_hdr);
2406 data = malloc(rep->size);
2407 memcpy(data, s, rep->size);
2411 __fio_sem_remove(&rep->lock);
2416 static int fio_init_server_ip(void)
2418 struct sockaddr *addr;
2425 sk = socket(AF_INET6, SOCK_STREAM, 0);
2427 sk = socket(AF_INET, SOCK_STREAM, 0);
2430 log_err("fio: socket: %s\n", strerror(errno));
2435 if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) {
2436 log_err("fio: setsockopt(REUSEADDR): %s\n", strerror(errno));
2442 * Not fatal if fails, so just ignore it if that happens
2444 if (setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt))) {
2449 void *src = &saddr_in6.sin6_addr;
2451 addr = (struct sockaddr *) &saddr_in6;
2452 socklen = sizeof(saddr_in6);
2453 saddr_in6.sin6_family = AF_INET6;
2454 str = inet_ntop(AF_INET6, src, buf, sizeof(buf));
2456 void *src = &saddr_in.sin_addr;
2458 addr = (struct sockaddr *) &saddr_in;
2459 socklen = sizeof(saddr_in);
2460 saddr_in.sin_family = AF_INET;
2461 str = inet_ntop(AF_INET, src, buf, sizeof(buf));
2464 if (bind(sk, addr, socklen) < 0) {
2465 log_err("fio: bind: %s\n", strerror(errno));
2466 log_info("fio: failed with IPv%c %s\n", use_ipv6 ? '6' : '4', str);
2474 static int fio_init_server_sock(void)
2476 struct sockaddr_un addr;
2481 sk = socket(AF_UNIX, SOCK_STREAM, 0);
2483 log_err("fio: socket: %s\n", strerror(errno));
2489 addr.sun_family = AF_UNIX;
2490 snprintf(addr.sun_path, sizeof(addr.sun_path), "%s", bind_sock);
2492 len = sizeof(addr.sun_family) + strlen(bind_sock) + 1;
2494 if (bind(sk, (struct sockaddr *) &addr, len) < 0) {
2495 log_err("fio: bind: %s\n", strerror(errno));
2504 static int fio_init_server_connection(void)
2509 dprint(FD_NET, "starting server\n");
2512 sk = fio_init_server_ip();
2514 sk = fio_init_server_sock();
2519 memset(bind_str, 0, sizeof(bind_str));
2528 src = &saddr_in6.sin6_addr;
2531 src = &saddr_in.sin_addr;
2534 p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str));
2536 sprintf(port, ",%u", fio_net_port);
2540 snprintf(bind_str, sizeof(bind_str), "%s", port);
2542 snprintf(bind_str, sizeof(bind_str), "%s", bind_sock);
2544 log_info("fio: server listening on %s\n", bind_str);
2546 if (listen(sk, 4) < 0) {
2547 log_err("fio: listen: %s\n", strerror(errno));
2555 int fio_server_parse_host(const char *host, int ipv6, struct in_addr *inp,
2556 struct in6_addr *inp6)
2562 ret = inet_pton(AF_INET6, host, inp6);
2564 ret = inet_pton(AF_INET, host, inp);
2567 struct addrinfo *res, hints = {
2568 .ai_family = ipv6 ? AF_INET6 : AF_INET,
2569 .ai_socktype = SOCK_STREAM,
2572 ret = getaddrinfo(host, NULL, &hints, &res);
2574 log_err("fio: failed to resolve <%s> (%s)\n", host,
2580 memcpy(inp6, &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr, sizeof(*inp6));
2582 memcpy(inp, &((struct sockaddr_in *) res->ai_addr)->sin_addr, sizeof(*inp));
2592 * Parse a host/ip/port string. Reads from 'str'.
2597 * *ptr is the host, *port is the port, inp is the destination.
2599 * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1.
2600 * For local domain sockets:
2601 * *ptr is the filename, *is_sock is 1.
2603 int fio_server_parse_string(const char *str, char **ptr, bool *is_sock,
2604 int *port, struct in_addr *inp,
2605 struct in6_addr *inp6, int *ipv6)
2607 const char *host = str;
2613 *port = fio_net_port;
2616 if (!strncmp(str, "sock:", 5)) {
2617 *ptr = strdup(str + 5);
2624 * Is it ip:<ip or host>:port
2626 if (!strncmp(host, "ip:", 3))
2628 else if (!strncmp(host, "ip4:", 4))
2630 else if (!strncmp(host, "ip6:", 4)) {
2633 } else if (host[0] == ':') {
2634 /* String is :port */
2637 if (!lport || lport > 65535) {
2638 log_err("fio: bad server port %u\n", lport);
2641 /* no hostname given, we are done */
2647 * If no port seen yet, check if there's a last ',' at the end
2650 portp = strchr(host, ',');
2654 lport = atoi(portp);
2655 if (!lport || lport > 65535) {
2656 log_err("fio: bad server port %u\n", lport);
2668 *ptr = strdup(host);
2670 if (fio_server_parse_host(*ptr, *ipv6, inp, inp6)) {
2677 *port = fio_net_port;
2683 * Server arg should be one of:
2685 * sock:/path/to/socket
2689 * Where sock uses unix domain sockets, and ip binds the server to
2690 * a specific interface. If no arguments are given to the server, it
2691 * uses IP and binds to 0.0.0.0.
2694 static int fio_handle_server_arg(void)
2696 int port = fio_net_port;
2700 saddr_in.sin_addr.s_addr = htonl(INADDR_ANY);
2702 if (!fio_server_arg)
2705 ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock,
2706 &port, &saddr_in.sin_addr,
2707 &saddr_in6.sin6_addr, &use_ipv6);
2709 if (!is_sock && bind_sock) {
2715 fio_net_port = port;
2716 saddr_in.sin_port = htons(port);
2717 saddr_in6.sin6_port = htons(port);
2721 static void sig_int(int sig)
2727 static void set_sig_handlers(void)
2729 struct sigaction act = {
2730 .sa_handler = sig_int,
2731 .sa_flags = SA_RESTART,
2734 sigaction(SIGINT, &act, NULL);
2736 /* Windows uses SIGBREAK as a quit signal from other applications */
2738 sigaction(SIGBREAK, &act, NULL);
2742 void fio_server_destroy_sk_key(void)
2744 pthread_key_delete(sk_out_key);
2747 int fio_server_create_sk_key(void)
2749 if (pthread_key_create(&sk_out_key, NULL)) {
2750 log_err("fio: can't create sk_out backend key\n");
2754 pthread_setspecific(sk_out_key, NULL);
2758 static int fio_server(void)
2762 dprint(FD_NET, "starting server\n");
2764 if (fio_handle_server_arg())
2770 /* if this is a child process, go handle the connection */
2771 if (fio_server_pipe_name != NULL) {
2772 ret = handle_connection_process();
2776 /* job to link child processes so they terminate together */
2777 hjob = windows_create_job();
2778 if (hjob == INVALID_HANDLE_VALUE)
2782 sk = fio_init_server_connection();
2786 ret = accept_loop(sk);
2790 if (fio_server_arg) {
2791 free(fio_server_arg);
2792 fio_server_arg = NULL;
2800 void fio_server_got_signal(int signal)
2802 struct sk_out *sk_out = pthread_getspecific(sk_out_key);
2806 if (signal == SIGPIPE)
2809 log_info("\nfio: terminating on signal %d\n", signal);
2810 exit_backend = true;
2814 static int check_existing_pidfile(const char *pidfile)
2821 if (stat(pidfile, &sb))
2824 f = fopen(pidfile, "r");
2828 if (fread(buf, sb.st_size, 1, f) <= 0) {
2835 if (kill(pid, SIGCONT) < 0)
2836 return errno != ESRCH;
2841 static int write_pid(pid_t pid, const char *pidfile)
2845 fpid = fopen(pidfile, "w");
2847 log_err("fio: failed opening pid file %s\n", pidfile);
2851 fprintf(fpid, "%u\n", (unsigned int) pid);
2857 * If pidfile is specified, background us.
2859 int fio_start_server(char *pidfile)
2867 WSAStartup(MAKEWORD(2, 2), &wsd);
2871 return fio_server();
2873 if (check_existing_pidfile(pidfile)) {
2874 log_err("fio: pidfile %s exists and server appears alive\n",
2882 log_err("fio: failed server fork: %s\n", strerror(errno));
2886 ret = write_pid(pid, pidfile);
2892 openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER);
2895 file = freopen("/dev/null", "r", stdin);
2899 file = freopen("/dev/null", "w", stdout);
2903 file = freopen("/dev/null", "w", stderr);
2922 void fio_server_set_arg(const char *arg)
2924 fio_server_arg = strdup(arg);
2928 void fio_server_internal_set(const char *arg)
2930 fio_server_pipe_name = strdup(arg);