diff options
Diffstat (limited to 'server.c')
| -rw-r--r-- | server.c | 2559 |
1 files changed, 0 insertions, 2559 deletions
diff --git a/server.c b/server.c deleted file mode 100644 index 1e269c29..00000000 --- a/server.c +++ /dev/null @@ -1,2559 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <stdarg.h> -#include <unistd.h> -#include <limits.h> -#include <errno.h> -#include <sys/poll.h> -#include <sys/types.h> -#include <sys/wait.h> -#include <sys/socket.h> -#include <sys/stat.h> -#include <sys/un.h> -#include <sys/uio.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <netdb.h> -#include <syslog.h> -#include <signal.h> -#ifdef CONFIG_ZLIB -#include <zlib.h> -#endif - -#include "fio.h" -#include "options.h" -#include "server.h" -#include "crc/crc16.h" -#include "lib/ieee754.h" -#include "verify.h" -#include "smalloc.h" - -int fio_net_port = FIO_NET_PORT; - -int exit_backend = 0; - -enum { - SK_F_FREE = 1, - SK_F_COPY = 2, - SK_F_SIMPLE = 4, - SK_F_VEC = 8, - SK_F_INLINE = 16, -}; - -struct sk_entry { - struct flist_head list; /* link on sk_out->list */ - int flags; /* SK_F_* */ - int opcode; /* Actual command fields */ - void *buf; - off_t size; - uint64_t tag; - struct flist_head next; /* Other sk_entry's, if linked command */ -}; - -static char *fio_server_arg; -static char *bind_sock; -static struct sockaddr_in saddr_in; -static struct sockaddr_in6 saddr_in6; -static int use_ipv6; -#ifdef CONFIG_ZLIB -static unsigned int has_zlib = 1; -#else -static unsigned int has_zlib = 0; -#endif -static unsigned int use_zlib; -static char me[128]; - -static pthread_key_t sk_out_key; - -struct fio_fork_item { - struct flist_head list; - int exitval; - int signal; - int exited; - pid_t pid; -}; - -struct cmd_reply { - struct fio_mutex lock; - void *data; - size_t size; - int error; -}; - -static const char *fio_server_ops[FIO_NET_CMD_NR] = { - "", - "QUIT", - "EXIT", - "JOB", - "JOBLINE", - "TEXT", - "TS", - "GS", - "SEND_ETA", - "ETA", - "PROBE", - "START", - "STOP", - "DISK_UTIL", - "SERVER_START", - "ADD_JOB", - "RUN", - "IOLOG", - "UPDATE_JOB", - "LOAD_FILE", - "VTRIGGER", - "SENDFILE", - "JOB_OPT", -}; - -static void sk_lock(struct sk_out *sk_out) -{ - fio_mutex_down(&sk_out->lock); -} - -static void sk_unlock(struct sk_out *sk_out) -{ - fio_mutex_up(&sk_out->lock); -} - -void sk_out_assign(struct sk_out *sk_out) -{ - if (!sk_out) - return; - - sk_lock(sk_out); - sk_out->refs++; - sk_unlock(sk_out); - pthread_setspecific(sk_out_key, sk_out); -} - -static void sk_out_free(struct sk_out *sk_out) -{ - __fio_mutex_remove(&sk_out->lock); - __fio_mutex_remove(&sk_out->wait); - __fio_mutex_remove(&sk_out->xmit); - sfree(sk_out); -} - -static int __sk_out_drop(struct sk_out *sk_out) -{ - if (sk_out) { - int refs; - - sk_lock(sk_out); - assert(sk_out->refs != 0); - refs = --sk_out->refs; - sk_unlock(sk_out); - - if (!refs) { - sk_out_free(sk_out); - pthread_setspecific(sk_out_key, NULL); - return 0; - } - } - - return 1; -} - -void sk_out_drop(void) -{ - struct sk_out *sk_out; - - sk_out = pthread_getspecific(sk_out_key); - __sk_out_drop(sk_out); -} - -static void __fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode, - uint32_t pdu_len, uint64_t tag) -{ - memset(cmd, 0, sizeof(*cmd)); - - cmd->version = __cpu_to_le16(FIO_SERVER_VER); - cmd->opcode = cpu_to_le16(opcode); - cmd->tag = cpu_to_le64(tag); - cmd->pdu_len = cpu_to_le32(pdu_len); -} - - -static void fio_init_net_cmd(struct fio_net_cmd *cmd, uint16_t opcode, - const void *pdu, uint32_t pdu_len, uint64_t tag) -{ - __fio_init_net_cmd(cmd, opcode, pdu_len, tag); - - if (pdu) - memcpy(&cmd->payload, pdu, pdu_len); -} - -const char *fio_server_op(unsigned int op) -{ - static char buf[32]; - - if (op < FIO_NET_CMD_NR) - return fio_server_ops[op]; - - sprintf(buf, "UNKNOWN/%d", op); - return buf; -} - -static ssize_t iov_total_len(const struct iovec *iov, int count) -{ - ssize_t ret = 0; - - while (count--) { - ret += iov->iov_len; - iov++; - } - - return ret; -} - -static int fio_sendv_data(int sk, struct iovec *iov, int count) -{ - ssize_t total_len = iov_total_len(iov, count); - ssize_t ret; - - do { - ret = writev(sk, iov, count); - if (ret > 0) { - total_len -= ret; - if (!total_len) - break; - - while (ret) { - if (ret >= iov->iov_len) { - ret -= iov->iov_len; - iov++; - continue; - } - iov->iov_base += ret; - iov->iov_len -= ret; - ret = 0; - } - } else if (!ret) - break; - else if (errno == EAGAIN || errno == EINTR) - continue; - else - break; - } while (!exit_backend); - - if (!total_len) - return 0; - - return 1; -} - -static int fio_send_data(int sk, const void *p, unsigned int len) -{ - struct iovec iov = { .iov_base = (void *) p, .iov_len = len }; - - assert(len <= sizeof(struct fio_net_cmd) + FIO_SERVER_MAX_FRAGMENT_PDU); - - return fio_sendv_data(sk, &iov, 1); -} - -static int fio_recv_data(int sk, void *p, unsigned int len, bool wait) -{ - int flags; - - if (wait) - flags = MSG_WAITALL; - else - flags = OS_MSG_DONTWAIT; - - do { - int ret = recv(sk, p, len, flags); - - if (ret > 0) { - len -= ret; - if (!len) - break; - p += ret; - continue; - } else if (!ret) - break; - else if (errno == EAGAIN || errno == EINTR) { - if (wait) - continue; - break; - } else - break; - } while (!exit_backend); - - if (!len) - return 0; - - return -1; -} - -static int verify_convert_cmd(struct fio_net_cmd *cmd) -{ - uint16_t crc; - - cmd->cmd_crc16 = le16_to_cpu(cmd->cmd_crc16); - cmd->pdu_crc16 = le16_to_cpu(cmd->pdu_crc16); - - crc = fio_crc16(cmd, FIO_NET_CMD_CRC_SZ); - if (crc != cmd->cmd_crc16) { - log_err("fio: server bad crc on command (got %x, wanted %x)\n", - cmd->cmd_crc16, crc); - return 1; - } - - cmd->version = le16_to_cpu(cmd->version); - cmd->opcode = le16_to_cpu(cmd->opcode); - cmd->flags = le32_to_cpu(cmd->flags); - cmd->tag = le64_to_cpu(cmd->tag); - cmd->pdu_len = le32_to_cpu(cmd->pdu_len); - - switch (cmd->version) { - case FIO_SERVER_VER: - break; - default: - log_err("fio: bad server cmd version %d\n", cmd->version); - return 1; - } - - if (cmd->pdu_len > FIO_SERVER_MAX_FRAGMENT_PDU) { - log_err("fio: command payload too large: %u\n", cmd->pdu_len); - return 1; - } - - return 0; -} - -/* - * Read (and defragment, if necessary) incoming commands - */ -struct fio_net_cmd *fio_net_recv_cmd(int sk, bool wait) -{ - struct fio_net_cmd cmd, *tmp, *cmdret = NULL; - size_t cmd_size = 0, pdu_offset = 0; - uint16_t crc; - int ret, first = 1; - void *pdu = NULL; - - do { - ret = fio_recv_data(sk, &cmd, sizeof(cmd), wait); - if (ret) - break; - - /* We have a command, verify it and swap if need be */ - ret = verify_convert_cmd(&cmd); - if (ret) - break; - - if (first) { - /* if this is text, add room for \0 at the end */ - cmd_size = sizeof(cmd) + cmd.pdu_len + 1; - assert(!cmdret); - } else - cmd_size += cmd.pdu_len; - - if (cmd_size / 1024 > FIO_SERVER_MAX_CMD_MB * 1024) { - log_err("fio: cmd+pdu too large (%llu)\n", (unsigned long long) cmd_size); - ret = 1; - break; - } - - tmp = realloc(cmdret, cmd_size); - if (!tmp) { - log_err("fio: server failed allocating cmd\n"); - ret = 1; - break; - } - cmdret = tmp; - - if (first) - memcpy(cmdret, &cmd, sizeof(cmd)); - else if (cmdret->opcode != cmd.opcode) { - log_err("fio: fragment opcode mismatch (%d != %d)\n", - cmdret->opcode, cmd.opcode); - ret = 1; - break; - } - - if (!cmd.pdu_len) - break; - - /* There's payload, get it */ - pdu = (void *) cmdret->payload + pdu_offset; - ret = fio_recv_data(sk, pdu, cmd.pdu_len, wait); - if (ret) - break; - - /* Verify payload crc */ - crc = fio_crc16(pdu, cmd.pdu_len); - if (crc != cmd.pdu_crc16) { - log_err("fio: server bad crc on payload "); - log_err("(got %x, wanted %x)\n", cmd.pdu_crc16, crc); - ret = 1; - break; - } - - pdu_offset += cmd.pdu_len; - if (!first) - cmdret->pdu_len += cmd.pdu_len; - first = 0; - } while (cmd.flags & FIO_NET_CMD_F_MORE); - - if (ret) { - free(cmdret); - cmdret = NULL; - } else if (cmdret) { - /* zero-terminate text input */ - if (cmdret->pdu_len) { - if (cmdret->opcode == FIO_NET_CMD_TEXT) { - struct cmd_text_pdu *__pdu = (struct cmd_text_pdu *) cmdret->payload; - char *buf = (char *) __pdu->buf; - - buf[__pdu->buf_len] = '\0'; - } else if (cmdret->opcode == FIO_NET_CMD_JOB) { - struct cmd_job_pdu *__pdu = (struct cmd_job_pdu *) cmdret->payload; - char *buf = (char *) __pdu->buf; - int len = le32_to_cpu(__pdu->buf_len); - - buf[len] = '\0'; - } - } - - /* frag flag is internal */ - cmdret->flags &= ~FIO_NET_CMD_F_MORE; - } - - return cmdret; -} - -static void add_reply(uint64_t tag, struct flist_head *list) -{ - struct fio_net_cmd_reply *reply; - - reply = (struct fio_net_cmd_reply *) (uintptr_t) tag; - flist_add_tail(&reply->list, list); -} - -static uint64_t alloc_reply(uint64_t tag, uint16_t opcode) -{ - struct fio_net_cmd_reply *reply; - - reply = calloc(1, sizeof(*reply)); - INIT_FLIST_HEAD(&reply->list); - fio_gettime(&reply->tv, NULL); - reply->saved_tag = tag; - reply->opcode = opcode; - - return (uintptr_t) reply; -} - -static void free_reply(uint64_t tag) -{ - struct fio_net_cmd_reply *reply; - - reply = (struct fio_net_cmd_reply *) (uintptr_t) tag; - free(reply); -} - -static void fio_net_cmd_crc_pdu(struct fio_net_cmd *cmd, const void *pdu) -{ - uint32_t pdu_len; - - cmd->cmd_crc16 = __cpu_to_le16(fio_crc16(cmd, FIO_NET_CMD_CRC_SZ)); - - pdu_len = le32_to_cpu(cmd->pdu_len); - cmd->pdu_crc16 = __cpu_to_le16(fio_crc16(pdu, pdu_len)); -} - -static void fio_net_cmd_crc(struct fio_net_cmd *cmd) -{ - fio_net_cmd_crc_pdu(cmd, cmd->payload); -} - -int fio_net_send_cmd(int fd, uint16_t opcode, const void *buf, off_t size, - uint64_t *tagptr, struct flist_head *list) -{ - struct fio_net_cmd *cmd = NULL; - size_t this_len, cur_len = 0; - uint64_t tag; - int ret; - - if (list) { - assert(tagptr); - tag = *tagptr = alloc_reply(*tagptr, opcode); - } else - tag = tagptr ? *tagptr : 0; - - do { - this_len = size; - if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU) - this_len = FIO_SERVER_MAX_FRAGMENT_PDU; - - if (!cmd || cur_len < sizeof(*cmd) + this_len) { - if (cmd) - free(cmd); - - cur_len = sizeof(*cmd) + this_len; - cmd = malloc(cur_len); - } - - fio_init_net_cmd(cmd, opcode, buf, this_len, tag); - - if (this_len < size) - cmd->flags = __cpu_to_le32(FIO_NET_CMD_F_MORE); - - fio_net_cmd_crc(cmd); - - ret = fio_send_data(fd, cmd, sizeof(*cmd) + this_len); - size -= this_len; - buf += this_len; - } while (!ret && size); - - if (list) { - if (ret) - free_reply(tag); - else - add_reply(tag, list); - } - - if (cmd) - free(cmd); - - return ret; -} - -static struct sk_entry *fio_net_prep_cmd(uint16_t opcode, void *buf, - size_t size, uint64_t *tagptr, - int flags) -{ - struct sk_entry *entry; - - entry = smalloc(sizeof(*entry)); - INIT_FLIST_HEAD(&entry->next); - entry->opcode = opcode; - if (flags & SK_F_COPY) { - entry->buf = smalloc(size); - memcpy(entry->buf, buf, size); - } else - entry->buf = buf; - - entry->size = size; - if (tagptr) - entry->tag = *tagptr; - else - entry->tag = 0; - entry->flags = flags; - return entry; -} - -static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry); - -static void fio_net_queue_entry(struct sk_entry *entry) -{ - struct sk_out *sk_out = pthread_getspecific(sk_out_key); - - if (entry->flags & SK_F_INLINE) - handle_sk_entry(sk_out, entry); - else { - sk_lock(sk_out); - flist_add_tail(&entry->list, &sk_out->list); - sk_unlock(sk_out); - - fio_mutex_up(&sk_out->wait); - } -} - -static int fio_net_queue_cmd(uint16_t opcode, void *buf, off_t size, - uint64_t *tagptr, int flags) -{ - struct sk_entry *entry; - - entry = fio_net_prep_cmd(opcode, buf, size, tagptr, flags); - if (entry) { - fio_net_queue_entry(entry); - return 0; - } - - return 1; -} - -static int fio_net_send_simple_stack_cmd(int sk, uint16_t opcode, uint64_t tag) -{ - struct fio_net_cmd cmd; - - fio_init_net_cmd(&cmd, opcode, NULL, 0, tag); - fio_net_cmd_crc(&cmd); - - return fio_send_data(sk, &cmd, sizeof(cmd)); -} - -/* - * If 'list' is non-NULL, then allocate and store the sent command for - * later verification. - */ -int fio_net_send_simple_cmd(int sk, uint16_t opcode, uint64_t tag, - struct flist_head *list) -{ - int ret; - - if (list) - tag = alloc_reply(tag, opcode); - - ret = fio_net_send_simple_stack_cmd(sk, opcode, tag); - if (ret) { - if (list) - free_reply(tag); - - return ret; - } - - if (list) - add_reply(tag, list); - - return 0; -} - -static int fio_net_queue_quit(void) -{ - dprint(FD_NET, "server: sending quit\n"); - - return fio_net_queue_cmd(FIO_NET_CMD_QUIT, NULL, 0, NULL, SK_F_SIMPLE); -} - -int fio_net_send_quit(int sk) -{ - dprint(FD_NET, "server: sending quit\n"); - - return fio_net_send_simple_cmd(sk, FIO_NET_CMD_QUIT, 0, NULL); -} - -static int fio_net_send_ack(struct fio_net_cmd *cmd, int error, int signal) -{ - struct cmd_end_pdu epdu; - uint64_t tag = 0; - - if (cmd) - tag = cmd->tag; - - epdu.error = __cpu_to_le32(error); - epdu.signal = __cpu_to_le32(signal); - return fio_net_queue_cmd(FIO_NET_CMD_STOP, &epdu, sizeof(epdu), &tag, SK_F_COPY); -} - -static int fio_net_queue_stop(int error, int signal) -{ - dprint(FD_NET, "server: sending stop (%d, %d)\n", error, signal); - return fio_net_send_ack(NULL, error, signal); -} - -static void fio_server_add_fork_item(pid_t pid, struct flist_head *list) -{ - struct fio_fork_item *ffi; - - ffi = malloc(sizeof(*ffi)); - ffi->exitval = 0; - ffi->signal = 0; - ffi->exited = 0; - ffi->pid = pid; - flist_add_tail(&ffi->list, list); -} - -static void fio_server_add_conn_pid(struct flist_head *conn_list, pid_t pid) -{ - dprint(FD_NET, "server: forked off connection job (pid=%u)\n", (int) pid); - fio_server_add_fork_item(pid, conn_list); -} - -static void fio_server_add_job_pid(struct flist_head *job_list, pid_t pid) -{ - dprint(FD_NET, "server: forked off job job (pid=%u)\n", (int) pid); - fio_server_add_fork_item(pid, job_list); -} - -static void fio_server_check_fork_item(struct fio_fork_item *ffi) -{ - int ret, status; - - ret = waitpid(ffi->pid, &status, WNOHANG); - if (ret < 0) { - if (errno == ECHILD) { - log_err("fio: connection pid %u disappeared\n", (int) ffi->pid); - ffi->exited = 1; - } else - log_err("fio: waitpid: %s\n", strerror(errno)); - } else if (ret == ffi->pid) { - if (WIFSIGNALED(status)) { - ffi->signal = WTERMSIG(status); - ffi->exited = 1; - } - if (WIFEXITED(status)) { - if (WEXITSTATUS(status)) - ffi->exitval = WEXITSTATUS(status); - ffi->exited = 1; - } - } -} - -static void fio_server_fork_item_done(struct fio_fork_item *ffi, bool stop) -{ - dprint(FD_NET, "pid %u exited, sig=%u, exitval=%d\n", (int) ffi->pid, ffi->signal, ffi->exitval); - - /* - * Fold STOP and QUIT... - */ - if (stop) { - fio_net_queue_stop(ffi->exitval, ffi->signal); - fio_net_queue_quit(); - } - - flist_del(&ffi->list); - free(ffi); -} - -static void fio_server_check_fork_items(struct flist_head *list, bool stop) -{ - struct flist_head *entry, *tmp; - struct fio_fork_item *ffi; - - flist_for_each_safe(entry, tmp, list) { - ffi = flist_entry(entry, struct fio_fork_item, list); - - fio_server_check_fork_item(ffi); - - if (ffi->exited) - fio_server_fork_item_done(ffi, stop); - } -} - -static void fio_server_check_jobs(struct flist_head *job_list) -{ - fio_server_check_fork_items(job_list, true); -} - -static void fio_server_check_conns(struct flist_head *conn_list) -{ - fio_server_check_fork_items(conn_list, false); -} - -static int handle_load_file_cmd(struct fio_net_cmd *cmd) -{ - struct cmd_load_file_pdu *pdu = (struct cmd_load_file_pdu *) cmd->payload; - void *file_name = pdu->file; - struct cmd_start_pdu spdu; - - dprint(FD_NET, "server: loading local file %s\n", (char *) file_name); - - pdu->name_len = le16_to_cpu(pdu->name_len); - pdu->client_type = le16_to_cpu(pdu->client_type); - - if (parse_jobs_ini(file_name, 0, 0, pdu->client_type)) { - fio_net_queue_quit(); - return -1; - } - - spdu.jobs = cpu_to_le32(thread_number); - spdu.stat_outputs = cpu_to_le32(stat_number); - fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY); - return 0; -} - -static int handle_run_cmd(struct sk_out *sk_out, struct flist_head *job_list, - struct fio_net_cmd *cmd) -{ - pid_t pid; - int ret; - - sk_out_assign(sk_out); - - fio_time_init(); - set_genesis_time(); - - pid = fork(); - if (pid) { - fio_server_add_job_pid(job_list, pid); - return 0; - } - - ret = fio_backend(sk_out); - free_threads_shm(); - sk_out_drop(); - _exit(ret); -} - -static int handle_job_cmd(struct fio_net_cmd *cmd) -{ - struct cmd_job_pdu *pdu = (struct cmd_job_pdu *) cmd->payload; - void *buf = pdu->buf; - struct cmd_start_pdu spdu; - - pdu->buf_len = le32_to_cpu(pdu->buf_len); - pdu->client_type = le32_to_cpu(pdu->client_type); - - if (parse_jobs_ini(buf, 1, 0, pdu->client_type)) { - fio_net_queue_quit(); - return -1; - } - - spdu.jobs = cpu_to_le32(thread_number); - spdu.stat_outputs = cpu_to_le32(stat_number); - - fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY); - return 0; -} - -static int handle_jobline_cmd(struct fio_net_cmd *cmd) -{ - void *pdu = cmd->payload; - struct cmd_single_line_pdu *cslp; - struct cmd_line_pdu *clp; - unsigned long offset; - struct cmd_start_pdu spdu; - char **argv; - int i; - - clp = pdu; - clp->lines = le16_to_cpu(clp->lines); - clp->client_type = le16_to_cpu(clp->client_type); - argv = malloc(clp->lines * sizeof(char *)); - offset = sizeof(*clp); - - dprint(FD_NET, "server: %d command line args\n", clp->lines); - - for (i = 0; i < clp->lines; i++) { - cslp = pdu + offset; - argv[i] = (char *) cslp->text; - - offset += sizeof(*cslp) + le16_to_cpu(cslp->len); - dprint(FD_NET, "server: %d: %s\n", i, argv[i]); - } - - if (parse_cmd_line(clp->lines, argv, clp->client_type)) { - fio_net_queue_quit(); - free(argv); - return -1; - } - - free(argv); - - spdu.jobs = cpu_to_le32(thread_number); - spdu.stat_outputs = cpu_to_le32(stat_number); - - fio_net_queue_cmd(FIO_NET_CMD_START, &spdu, sizeof(spdu), NULL, SK_F_COPY); - return 0; -} - -static int handle_probe_cmd(struct fio_net_cmd *cmd) -{ - struct cmd_client_probe_pdu *pdu = (struct cmd_client_probe_pdu *) cmd->payload; - struct cmd_probe_reply_pdu probe; - uint64_t tag = cmd->tag; - - dprint(FD_NET, "server: sending probe reply\n"); - - strcpy(me, (char *) pdu->server); - - memset(&probe, 0, sizeof(probe)); - gethostname((char *) probe.hostname, sizeof(probe.hostname)); -#ifdef CONFIG_BIG_ENDIAN - probe.bigendian = 1; -#endif - strncpy((char *) probe.fio_version, fio_version_string, sizeof(probe.fio_version)); - - probe.os = FIO_OS; - probe.arch = FIO_ARCH; - probe.bpp = sizeof(void *); - probe.cpus = __cpu_to_le32(cpus_online()); - - /* - * If the client supports compression and we do too, then enable it - */ - if (has_zlib && le64_to_cpu(pdu->flags) & FIO_PROBE_FLAG_ZLIB) { - probe.flags = __cpu_to_le64(FIO_PROBE_FLAG_ZLIB); - use_zlib = 1; - } else { - probe.flags = 0; - use_zlib = 0; - } - - return fio_net_queue_cmd(FIO_NET_CMD_PROBE, &probe, sizeof(probe), &tag, SK_F_COPY); -} - -static int handle_send_eta_cmd(struct fio_net_cmd *cmd) -{ - struct jobs_eta *je; - uint64_t tag = cmd->tag; - size_t size; - int i; - - dprint(FD_NET, "server sending status\n"); - - /* - * Fake ETA return if we don't have a local one, otherwise the client - * will end up timing out waiting for a response to the ETA request - */ - je = get_jobs_eta(true, &size); - if (!je) { - size = sizeof(*je); - je = calloc(1, size); - } else { - je->nr_running = cpu_to_le32(je->nr_running); - je->nr_ramp = cpu_to_le32(je->nr_ramp); - je->nr_pending = cpu_to_le32(je->nr_pending); - je->nr_setting_up = cpu_to_le32(je->nr_setting_up); - je->files_open = cpu_to_le32(je->files_open); - - for (i = 0; i < DDIR_RWDIR_CNT; i++) { - je->m_rate[i] = cpu_to_le64(je->m_rate[i]); - je->t_rate[i] = cpu_to_le64(je->t_rate[i]); - je->m_iops[i] = cpu_to_le32(je->m_iops[i]); - je->t_iops[i] = cpu_to_le32(je->t_iops[i]); - je->rate[i] = cpu_to_le64(je->rate[i]); - je->iops[i] = cpu_to_le32(je->iops[i]); - } - - je->elapsed_sec = cpu_to_le64(je->elapsed_sec); - je->eta_sec = cpu_to_le64(je->eta_sec); - je->nr_threads = cpu_to_le32(je->nr_threads); - je->is_pow2 = cpu_to_le32(je->is_pow2); - je->unit_base = cpu_to_le32(je->unit_base); - } - - fio_net_queue_cmd(FIO_NET_CMD_ETA, je, size, &tag, SK_F_FREE); - return 0; -} - -static int send_update_job_reply(uint64_t __tag, int error) -{ - uint64_t tag = __tag; - uint32_t pdu_error; - - pdu_error = __cpu_to_le32(error); - return fio_net_queue_cmd(FIO_NET_CMD_UPDATE_JOB, &pdu_error, sizeof(pdu_error), &tag, SK_F_COPY); -} - -static int handle_update_job_cmd(struct fio_net_cmd *cmd) -{ - struct cmd_add_job_pdu *pdu = (struct cmd_add_job_pdu *) cmd->payload; - struct thread_data *td; - uint32_t tnumber; - - tnumber = le32_to_cpu(pdu->thread_number); - - dprint(FD_NET, "server: updating options for job %u\n", tnumber); - - if (!tnumber || tnumber > thread_number) { - send_update_job_reply(cmd->tag, ENODEV); - return 0; - } - - td = &threads[tnumber - 1]; - convert_thread_options_to_cpu(&td->o, &pdu->top); - send_update_job_reply(cmd->tag, 0); - return 0; -} - -static int handle_trigger_cmd(struct fio_net_cmd *cmd) -{ - struct cmd_vtrigger_pdu *pdu = (struct cmd_vtrigger_pdu *) cmd->payload; - char *buf = (char *) pdu->cmd; - struct all_io_list *rep; - size_t sz; - - pdu->len = le16_to_cpu(pdu->len); - buf[pdu->len] = '\0'; - - rep = get_all_io_list(IO_LIST_ALL, &sz); - if (!rep) { - struct all_io_list state; - - state.threads = cpu_to_le64((uint64_t) 0); - fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, &state, sizeof(state), NULL, SK_F_COPY | SK_F_INLINE); - } else - fio_net_queue_cmd(FIO_NET_CMD_VTRIGGER, rep, sz, NULL, SK_F_FREE | SK_F_INLINE); - - exec_trigger(buf); - return 0; -} - -static int handle_command(struct sk_out *sk_out, struct flist_head *job_list, - struct fio_net_cmd *cmd) -{ - int ret; - - dprint(FD_NET, "server: got op [%s], pdu=%u, tag=%llx\n", - fio_server_op(cmd->opcode), cmd->pdu_len, - (unsigned long long) cmd->tag); - - switch (cmd->opcode) { - case FIO_NET_CMD_QUIT: - fio_terminate_threads(TERMINATE_ALL); - ret = 0; - break; - case FIO_NET_CMD_EXIT: - exit_backend = 1; - return -1; - case FIO_NET_CMD_LOAD_FILE: - ret = handle_load_file_cmd(cmd); - break; - case FIO_NET_CMD_JOB: - ret = handle_job_cmd(cmd); - break; - case FIO_NET_CMD_JOBLINE: - ret = handle_jobline_cmd(cmd); - break; - case FIO_NET_CMD_PROBE: - ret = handle_probe_cmd(cmd); - break; - case FIO_NET_CMD_SEND_ETA: - ret = handle_send_eta_cmd(cmd); - break; - case FIO_NET_CMD_RUN: - ret = handle_run_cmd(sk_out, job_list, cmd); - break; - case FIO_NET_CMD_UPDATE_JOB: - ret = handle_update_job_cmd(cmd); - break; - case FIO_NET_CMD_VTRIGGER: - ret = handle_trigger_cmd(cmd); - break; - case FIO_NET_CMD_SENDFILE: { - struct cmd_sendfile_reply *in; - struct cmd_reply *rep; - - rep = (struct cmd_reply *) (uintptr_t) cmd->tag; - - in = (struct cmd_sendfile_reply *) cmd->payload; - in->size = le32_to_cpu(in->size); - in->error = le32_to_cpu(in->error); - if (in->error) { - ret = 1; - rep->error = in->error; - } else { - ret = 0; - rep->data = smalloc(in->size); - if (!rep->data) { - ret = 1; - rep->error = ENOMEM; - } else { - rep->size = in->size; - memcpy(rep->data, in->data, in->size); - } - } - fio_mutex_up(&rep->lock); - break; - } - default: - log_err("fio: unknown opcode: %s\n", fio_server_op(cmd->opcode)); - ret = 1; - } - - return ret; -} - -/* - * Send a command with a separate PDU, not inlined in the command - */ -static int fio_send_cmd_ext_pdu(int sk, uint16_t opcode, const void *buf, - off_t size, uint64_t tag, uint32_t flags) -{ - struct fio_net_cmd cmd; - struct iovec iov[2]; - size_t this_len; - int ret; - - iov[0].iov_base = (void *) &cmd; - iov[0].iov_len = sizeof(cmd); - - do { - uint32_t this_flags = flags; - - this_len = size; - if (this_len > FIO_SERVER_MAX_FRAGMENT_PDU) - this_len = FIO_SERVER_MAX_FRAGMENT_PDU; - - if (this_len < size) - this_flags |= FIO_NET_CMD_F_MORE; - - __fio_init_net_cmd(&cmd, opcode, this_len, tag); - cmd.flags = __cpu_to_le32(this_flags); - fio_net_cmd_crc_pdu(&cmd, buf); - - iov[1].iov_base = (void *) buf; - iov[1].iov_len = this_len; - - ret = fio_sendv_data(sk, iov, 2); - size -= this_len; - buf += this_len; - } while (!ret && size); - - return ret; -} - -static void finish_entry(struct sk_entry *entry) -{ - if (entry->flags & SK_F_FREE) - free(entry->buf); - else if (entry->flags & SK_F_COPY) - sfree(entry->buf); - - sfree(entry); -} - -static void entry_set_flags(struct sk_entry *entry, struct flist_head *list, - unsigned int *flags) -{ - if (!flist_empty(list)) - *flags = FIO_NET_CMD_F_MORE; - else - *flags = 0; -} - -static int send_vec_entry(struct sk_out *sk_out, struct sk_entry *first) -{ - unsigned int flags; - int ret; - - entry_set_flags(first, &first->next, &flags); - - ret = fio_send_cmd_ext_pdu(sk_out->sk, first->opcode, first->buf, - first->size, first->tag, flags); - - while (!flist_empty(&first->next)) { - struct sk_entry *next; - - next = flist_first_entry(&first->next, struct sk_entry, list); - flist_del_init(&next->list); - - entry_set_flags(next, &first->next, &flags); - - ret += fio_send_cmd_ext_pdu(sk_out->sk, next->opcode, next->buf, - next->size, next->tag, flags); - finish_entry(next); - } - - return ret; -} - -static int handle_sk_entry(struct sk_out *sk_out, struct sk_entry *entry) -{ - int ret; - - fio_mutex_down(&sk_out->xmit); - - if (entry->flags & SK_F_VEC) - ret = send_vec_entry(sk_out, entry); - else if (entry->flags & SK_F_SIMPLE) { - ret = fio_net_send_simple_cmd(sk_out->sk, entry->opcode, - entry->tag, NULL); - } else { - ret = fio_net_send_cmd(sk_out->sk, entry->opcode, entry->buf, - entry->size, &entry->tag, NULL); - } - - fio_mutex_up(&sk_out->xmit); - - if (ret) - log_err("fio: failed handling cmd %s\n", fio_server_op(entry->opcode)); - - finish_entry(entry); - return ret; -} - -static int handle_xmits(struct sk_out *sk_out) -{ - struct sk_entry *entry; - FLIST_HEAD(list); - int ret = 0; - - sk_lock(sk_out); - if (flist_empty(&sk_out->list)) { - sk_unlock(sk_out); - return 0; - } - - flist_splice_init(&sk_out->list, &list); - sk_unlock(sk_out); - - while (!flist_empty(&list)) { - entry = flist_entry(list.next, struct sk_entry, list); - flist_del(&entry->list); - ret += handle_sk_entry(sk_out, entry); - } - - return ret; -} - -static int handle_connection(struct sk_out *sk_out) -{ - struct fio_net_cmd *cmd = NULL; - FLIST_HEAD(job_list); - int ret = 0; - - reset_fio_state(); - - /* read forever */ - while (!exit_backend) { - struct pollfd pfd = { - .fd = sk_out->sk, - .events = POLLIN, - }; - - ret = 0; - do { - int timeout = 1000; - - if (!flist_empty(&job_list)) - timeout = 100; - - handle_xmits(sk_out); - - ret = poll(&pfd, 1, 0); - if (ret < 0) { - if (errno == EINTR) - break; - log_err("fio: poll: %s\n", strerror(errno)); - break; - } else if (!ret) { - fio_server_check_jobs(&job_list); - fio_mutex_down_timeout(&sk_out->wait, timeout); - continue; - } - - if (pfd.revents & POLLIN) - break; - if (pfd.revents & (POLLERR|POLLHUP)) { - ret = 1; - break; - } - } while (!exit_backend); - - fio_server_check_jobs(&job_list); - - if (ret < 0) - break; - - cmd = fio_net_recv_cmd(sk_out->sk, true); - if (!cmd) { - ret = -1; - break; - } - - ret = handle_command(sk_out, &job_list, cmd); - if (ret) - break; - - free(cmd); - cmd = NULL; - } - - if (cmd) - free(cmd); - - handle_xmits(sk_out); - - close(sk_out->sk); - sk_out->sk = -1; - __sk_out_drop(sk_out); - _exit(ret); -} - -/* get the address on this host bound by the input socket, - * whether it is ipv6 or ipv4 */ - -static int get_my_addr_str(int sk) -{ - struct sockaddr_in6 myaddr6 = { 0, }; - struct sockaddr_in myaddr4 = { 0, }; - struct sockaddr *sockaddr_p; - char *net_addr; - socklen_t len; - int ret; - - if (use_ipv6) { - len = sizeof(myaddr6); - sockaddr_p = (struct sockaddr * )&myaddr6; - net_addr = (char * )&myaddr6.sin6_addr; - } else { - len = sizeof(myaddr4); - sockaddr_p = (struct sockaddr * )&myaddr4; - net_addr = (char * )&myaddr4.sin_addr; - } - - ret = getsockname(sk, sockaddr_p, &len); - if (ret) { - log_err("fio: getsockaddr: %s\n", strerror(errno)); - return -1; - } - - if (!inet_ntop(use_ipv6?AF_INET6:AF_INET, net_addr, client_sockaddr_str, INET6_ADDRSTRLEN - 1)) { - log_err("inet_ntop: failed to convert addr to string\n"); - return -1; - } - - dprint(FD_NET, "fio server bound to addr %s\n", client_sockaddr_str); - return 0; -} - -static int accept_loop(int listen_sk) -{ - struct sockaddr_in addr; - struct sockaddr_in6 addr6; - socklen_t len = use_ipv6 ? sizeof(addr6) : sizeof(addr); - struct pollfd pfd; - int ret = 0, sk, exitval = 0; - FLIST_HEAD(conn_list); - - dprint(FD_NET, "server enter accept loop\n"); - - fio_set_fd_nonblocking(listen_sk, "server"); - - while (!exit_backend) { - struct sk_out *sk_out; - const char *from; - char buf[64]; - pid_t pid; - - pfd.fd = listen_sk; - pfd.events = POLLIN; - do { - int timeout = 1000; - - if (!flist_empty(&conn_list)) - timeout = 100; - - ret = poll(&pfd, 1, timeout); - if (ret < 0) { - if (errno == EINTR) - break; - log_err("fio: poll: %s\n", strerror(errno)); - break; - } else if (!ret) { - fio_server_check_conns(&conn_list); - continue; - } - - if (pfd.revents & POLLIN) - break; - } while (!exit_backend); - - fio_server_check_conns(&conn_list); - - if (exit_backend || ret < 0) - break; - - if (use_ipv6) - sk = accept(listen_sk, (struct sockaddr *) &addr6, &len); - else - sk = accept(listen_sk, (struct sockaddr *) &addr, &len); - - if (sk < 0) { - log_err("fio: accept: %s\n", strerror(errno)); - return -1; - } - - if (use_ipv6) - from = inet_ntop(AF_INET6, (struct sockaddr *) &addr6.sin6_addr, buf, sizeof(buf)); - else - from = inet_ntop(AF_INET, (struct sockaddr *) &addr.sin_addr, buf, sizeof(buf)); - - dprint(FD_NET, "server: connect from %s\n", from); - - sk_out = smalloc(sizeof(*sk_out)); - sk_out->sk = sk; - INIT_FLIST_HEAD(&sk_out->list); - __fio_mutex_init(&sk_out->lock, FIO_MUTEX_UNLOCKED); - __fio_mutex_init(&sk_out->wait, FIO_MUTEX_LOCKED); - __fio_mutex_init(&sk_out->xmit, FIO_MUTEX_UNLOCKED); - - pid = fork(); - if (pid) { - close(sk); - fio_server_add_conn_pid(&conn_list, pid); - continue; - } - - /* if error, it's already logged, non-fatal */ - get_my_addr_str(sk); - - /* - * Assign sk_out here, it'll be dropped in handle_connection() - * since that function calls _exit() when done - */ - sk_out_assign(sk_out); - handle_connection(sk_out); - } - - return exitval; -} - -int fio_server_text_output(int level, const char *buf, size_t len) -{ - struct sk_out *sk_out = pthread_getspecific(sk_out_key); - struct cmd_text_pdu *pdu; - unsigned int tlen; - struct timeval tv; - - if (!sk_out || sk_out->sk == -1) - return -1; - - tlen = sizeof(*pdu) + len; - pdu = malloc(tlen); - - pdu->level = __cpu_to_le32(level); - pdu->buf_len = __cpu_to_le32(len); - - gettimeofday(&tv, NULL); - pdu->log_sec = __cpu_to_le64(tv.tv_sec); - pdu->log_usec = __cpu_to_le64(tv.tv_usec); - - memcpy(pdu->buf, buf, len); - - fio_net_queue_cmd(FIO_NET_CMD_TEXT, pdu, tlen, NULL, SK_F_COPY); - free(pdu); - return len; -} - -static void convert_io_stat(struct io_stat *dst, struct io_stat *src) -{ - dst->max_val = cpu_to_le64(src->max_val); - dst->min_val = cpu_to_le64(src->min_val); - dst->samples = cpu_to_le64(src->samples); - - /* - * Encode to IEEE 754 for network transfer - */ - dst->mean.u.i = cpu_to_le64(fio_double_to_uint64(src->mean.u.f)); - dst->S.u.i = cpu_to_le64(fio_double_to_uint64(src->S.u.f)); -} - -static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src) -{ - int i; - - for (i = 0; i < DDIR_RWDIR_CNT; i++) { - dst->max_run[i] = cpu_to_le64(src->max_run[i]); - dst->min_run[i] = cpu_to_le64(src->min_run[i]); - dst->max_bw[i] = cpu_to_le64(src->max_bw[i]); - dst->min_bw[i] = cpu_to_le64(src->min_bw[i]); - dst->iobytes[i] = cpu_to_le64(src->iobytes[i]); - dst->agg[i] = cpu_to_le64(src->agg[i]); - } - - dst->kb_base = cpu_to_le32(src->kb_base); - dst->unit_base = cpu_to_le32(src->unit_base); - dst->groupid = cpu_to_le32(src->groupid); - dst->unified_rw_rep = cpu_to_le32(src->unified_rw_rep); -} - -/* - * Send a CMD_TS, which packs struct thread_stat and group_run_stats - * into a single payload. - */ -void fio_server_send_ts(struct thread_stat *ts, struct group_run_stats *rs) -{ - struct cmd_ts_pdu p; - int i, j; - void *ss_buf; - uint64_t *ss_iops, *ss_bw; - - dprint(FD_NET, "server sending end stats\n"); - - memset(&p, 0, sizeof(p)); - - strncpy(p.ts.name, ts->name, FIO_JOBNAME_SIZE - 1); - strncpy(p.ts.verror, ts->verror, FIO_VERROR_SIZE - 1); - strncpy(p.ts.description, ts->description, FIO_JOBDESC_SIZE - 1); - - p.ts.error = cpu_to_le32(ts->error); - p.ts.thread_number = cpu_to_le32(ts->thread_number); - p.ts.groupid = cpu_to_le32(ts->groupid); - p.ts.pid = cpu_to_le32(ts->pid); - p.ts.members = cpu_to_le32(ts->members); - p.ts.unified_rw_rep = cpu_to_le32(ts->unified_rw_rep); - - for (i = 0; i < DDIR_RWDIR_CNT; i++) { - convert_io_stat(&p.ts.clat_stat[i], &ts->clat_stat[i]); - convert_io_stat(&p.ts.slat_stat[i], &ts->slat_stat[i]); - convert_io_stat(&p.ts.lat_stat[i], &ts->lat_stat[i]); - convert_io_stat(&p.ts.bw_stat[i], &ts->bw_stat[i]); - } - - p.ts.usr_time = cpu_to_le64(ts->usr_time); - p.ts.sys_time = cpu_to_le64(ts->sys_time); - p.ts.ctx = cpu_to_le64(ts->ctx); - p.ts.minf = cpu_to_le64(ts->minf); - p.ts.majf = cpu_to_le64(ts->majf); - p.ts.clat_percentiles = cpu_to_le64(ts->clat_percentiles); - p.ts.percentile_precision = cpu_to_le64(ts->percentile_precision); - - for (i = 0; i < FIO_IO_U_LIST_MAX_LEN; i++) { - fio_fp64_t *src = &ts->percentile_list[i]; - fio_fp64_t *dst = &p.ts.percentile_list[i]; - - dst->u.i = cpu_to_le64(fio_double_to_uint64(src->u.f)); - } - - for (i = 0; i < FIO_IO_U_MAP_NR; i++) { - p.ts.io_u_map[i] = cpu_to_le32(ts->io_u_map[i]); - p.ts.io_u_submit[i] = cpu_to_le32(ts->io_u_submit[i]); - p.ts.io_u_complete[i] = cpu_to_le32(ts->io_u_complete[i]); - } - - for (i = 0; i < FIO_IO_U_LAT_U_NR; i++) - p.ts.io_u_lat_u[i] = cpu_to_le32(ts->io_u_lat_u[i]); - for (i = 0; i < FIO_IO_U_LAT_M_NR; i++) - p.ts.io_u_lat_m[i] = cpu_to_le32(ts->io_u_lat_m[i]); - - for (i = 0; i < DDIR_RWDIR_CNT; i++) - for (j = 0; j < FIO_IO_U_PLAT_NR; j++) - p.ts.io_u_plat[i][j] = cpu_to_le32(ts->io_u_plat[i][j]); - - for (i = 0; i < DDIR_RWDIR_CNT; i++) { - p.ts.total_io_u[i] = cpu_to_le64(ts->total_io_u[i]); - p.ts.short_io_u[i] = cpu_to_le64(ts->short_io_u[i]); - p.ts.drop_io_u[i] = cpu_to_le64(ts->drop_io_u[i]); - } - - p.ts.total_submit = cpu_to_le64(ts->total_submit); - p.ts.total_complete = cpu_to_le64(ts->total_complete); - - for (i = 0; i < DDIR_RWDIR_CNT; i++) { - p.ts.io_bytes[i] = cpu_to_le64(ts->io_bytes[i]); - p.ts.runtime[i] = cpu_to_le64(ts->runtime[i]); - } - - p.ts.total_run_time = cpu_to_le64(ts->total_run_time); - p.ts.continue_on_error = cpu_to_le16(ts->continue_on_error); - p.ts.total_err_count = cpu_to_le64(ts->total_err_count); - p.ts.first_error = cpu_to_le32(ts->first_error); - p.ts.kb_base = cpu_to_le32(ts->kb_base); - p.ts.unit_base = cpu_to_le32(ts->unit_base); - - p.ts.latency_depth = cpu_to_le32(ts->latency_depth); - p.ts.latency_target = cpu_to_le64(ts->latency_target); - p.ts.latency_window = cpu_to_le64(ts->latency_window); - p.ts.latency_percentile.u.i = cpu_to_le64(fio_double_to_uint64(ts->latency_percentile.u.f)); - - p.ts.nr_block_infos = cpu_to_le64(ts->nr_block_infos); - for (i = 0; i < p.ts.nr_block_infos; i++) - p.ts.block_infos[i] = cpu_to_le32(ts->block_infos[i]); - - p.ts.ss_dur = cpu_to_le64(ts->ss_dur); - p.ts.ss_state = cpu_to_le32(ts->ss_state); - p.ts.ss_head = cpu_to_le32(ts->ss_head); - p.ts.ss_limit.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_limit.u.f)); - p.ts.ss_slope.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_slope.u.f)); - p.ts.ss_deviation.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_deviation.u.f)); - p.ts.ss_criterion.u.i = cpu_to_le64(fio_double_to_uint64(ts->ss_criterion.u.f)); - - convert_gs(&p.rs, rs); - - dprint(FD_NET, "ts->ss_state = %d\n", ts->ss_state); - if (ts->ss_state & __FIO_SS_DATA) { - dprint(FD_NET, "server sending steadystate ring buffers\n"); - - ss_buf = malloc(sizeof(p) + 2*ts->ss_dur*sizeof(uint64_t)); - - memcpy(ss_buf, &p, sizeof(p)); - - ss_iops = (uint64_t *) ((struct cmd_ts_pdu *)ss_buf + 1); - ss_bw = ss_iops + (int) ts->ss_dur; - for (i = 0; i < ts->ss_dur; i++) { - ss_iops[i] = cpu_to_le64(ts->ss_iops_data[i]); - ss_bw[i] = cpu_to_le64(ts->ss_bw_data[i]); - } - - fio_net_queue_cmd(FIO_NET_CMD_TS, ss_buf, sizeof(p) + 2*ts->ss_dur*sizeof(uint64_t), NULL, SK_F_COPY); - - free(ss_buf); - } - else - fio_net_queue_cmd(FIO_NET_CMD_TS, &p, sizeof(p), NULL, SK_F_COPY); -} - -void fio_server_send_gs(struct group_run_stats *rs) -{ - struct group_run_stats gs; - - dprint(FD_NET, "server sending group run stats\n"); - - convert_gs(&gs, rs); - fio_net_queue_cmd(FIO_NET_CMD_GS, &gs, sizeof(gs), NULL, SK_F_COPY); -} - -void fio_server_send_job_options(struct flist_head *opt_list, - unsigned int groupid) -{ - struct cmd_job_option pdu; - struct flist_head *entry; - - if (flist_empty(opt_list)) - return; - - flist_for_each(entry, opt_list) { - struct print_option *p; - size_t len; - - p = flist_entry(entry, struct print_option, list); - memset(&pdu, 0, sizeof(pdu)); - - if (groupid == -1U) { - pdu.global = __cpu_to_le16(1); - pdu.groupid = 0; - } else { - pdu.global = 0; - pdu.groupid = cpu_to_le32(groupid); - } - len = strlen(p->name); - if (len >= sizeof(pdu.name)) { - len = sizeof(pdu.name) - 1; - pdu.truncated = __cpu_to_le16(1); - } - memcpy(pdu.name, p->name, len); - if (p->value) { - len = strlen(p->value); - if (len >= sizeof(pdu.value)) { - len = sizeof(pdu.value) - 1; - pdu.truncated = __cpu_to_le16(1); - } - memcpy(pdu.value, p->value, len); - } - fio_net_queue_cmd(FIO_NET_CMD_JOB_OPT, &pdu, sizeof(pdu), NULL, SK_F_COPY); - } -} - -static void convert_agg(struct disk_util_agg *dst, struct disk_util_agg *src) -{ - int i; - - for (i = 0; i < 2; i++) { - dst->ios[i] = cpu_to_le64(src->ios[i]); - dst->merges[i] = cpu_to_le64(src->merges[i]); - dst->sectors[i] = cpu_to_le64(src->sectors[i]); - dst->ticks[i] = cpu_to_le64(src->ticks[i]); - } - - dst->io_ticks = cpu_to_le64(src->io_ticks); - dst->time_in_queue = cpu_to_le64(src->time_in_queue); - dst->slavecount = cpu_to_le32(src->slavecount); - dst->max_util.u.i = cpu_to_le64(fio_double_to_uint64(src->max_util.u.f)); -} - -static void convert_dus(struct disk_util_stat *dst, struct disk_util_stat *src) -{ - int i; - - dst->name[FIO_DU_NAME_SZ - 1] = '\0'; - strncpy((char *) dst->name, (char *) src->name, FIO_DU_NAME_SZ - 1); - - for (i = 0; i < 2; i++) { - dst->s.ios[i] = cpu_to_le64(src->s.ios[i]); - dst->s.merges[i] = cpu_to_le64(src->s.merges[i]); - dst->s.sectors[i] = cpu_to_le64(src->s.sectors[i]); - dst->s.ticks[i] = cpu_to_le64(src->s.ticks[i]); - } - - dst->s.io_ticks = cpu_to_le64(src->s.io_ticks); - dst->s.time_in_queue = cpu_to_le64(src->s.time_in_queue); - dst->s.msec = cpu_to_le64(src->s.msec); -} - -void fio_server_send_du(void) -{ - struct disk_util *du; - struct flist_head *entry; - struct cmd_du_pdu pdu; - - dprint(FD_NET, "server: sending disk_util %d\n", !flist_empty(&disk_list)); - - memset(&pdu, 0, sizeof(pdu)); - - flist_for_each(entry, &disk_list) { - du = flist_entry(entry, struct disk_util, list); - - convert_dus(&pdu.dus, &du->dus); - convert_agg(&pdu.agg, &du->agg); - - fio_net_queue_cmd(FIO_NET_CMD_DU, &pdu, sizeof(pdu), NULL, SK_F_COPY); - } -} - -#ifdef CONFIG_ZLIB - -static inline void __fio_net_prep_tail(z_stream *stream, void *out_pdu, - struct sk_entry **last_entry, - struct sk_entry *first) -{ - unsigned int this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream->avail_out; - - *last_entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len, - NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE); - flist_add_tail(&(*last_entry)->list, &first->next); - -} - -/* - * Deflates the next input given, creating as many new packets in the - * linked list as necessary. - */ -static int __deflate_pdu_buffer(void *next_in, unsigned int next_sz, void **out_pdu, - struct sk_entry **last_entry, z_stream *stream, - struct sk_entry *first) -{ - int ret; - - stream->next_in = next_in; - stream->avail_in = next_sz; - do { - if (! stream->avail_out) { - - __fio_net_prep_tail(stream, *out_pdu, last_entry, first); - - *out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU); - - stream->avail_out = FIO_SERVER_MAX_FRAGMENT_PDU; - stream->next_out = *out_pdu; - } - - ret = deflate(stream, Z_BLOCK); - - if (ret < 0) { - free(*out_pdu); - return 1; - } - } while (stream->avail_in); - - return 0; -} - -static int __fio_append_iolog_gz_hist(struct sk_entry *first, struct io_log *log, - struct io_logs *cur_log, z_stream *stream) -{ - struct sk_entry *entry; - void *out_pdu; - int ret, i, j; - int sample_sz = log_entry_sz(log); - - out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU); - stream->avail_out = FIO_SERVER_MAX_FRAGMENT_PDU; - stream->next_out = out_pdu; - - for (i = 0; i < cur_log->nr_samples; i++) { - struct io_sample *s; - struct io_u_plat_entry *cur_plat_entry, *prev_plat_entry; - unsigned int *cur_plat, *prev_plat; - - s = get_sample(log, cur_log, i); - ret = __deflate_pdu_buffer(s, sample_sz, &out_pdu, &entry, stream, first); - if (ret) - return ret; - - /* Do the subtraction on server side so that client doesn't have to - * reconstruct our linked list from packets. - */ - cur_plat_entry = s->data.plat_entry; - prev_plat_entry = flist_first_entry(&cur_plat_entry->list, struct io_u_plat_entry, list); - cur_plat = cur_plat_entry->io_u_plat; - prev_plat = prev_plat_entry->io_u_plat; - - for (j = 0; j < FIO_IO_U_PLAT_NR; j++) { - cur_plat[j] -= prev_plat[j]; - } - - flist_del(&prev_plat_entry->list); - free(prev_plat_entry); - - ret = __deflate_pdu_buffer(cur_plat_entry, sizeof(*cur_plat_entry), - &out_pdu, &entry, stream, first); - - if (ret) - return ret; - } - - __fio_net_prep_tail(stream, out_pdu, &entry, first); - - return 0; -} - -static int __fio_append_iolog_gz(struct sk_entry *first, struct io_log *log, - struct io_logs *cur_log, z_stream *stream) -{ - unsigned int this_len; - void *out_pdu; - int ret; - - if (log->log_type == IO_LOG_TYPE_HIST) - return __fio_append_iolog_gz_hist(first, log, cur_log, stream); - - stream->next_in = (void *) cur_log->log; - stream->avail_in = cur_log->nr_samples * log_entry_sz(log); - - do { - struct sk_entry *entry; - - /* - * Dirty - since the log is potentially huge, compress it into - * FIO_SERVER_MAX_FRAGMENT_PDU chunks and let the receiving - * side defragment it. - */ - out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU); - - stream->avail_out = FIO_SERVER_MAX_FRAGMENT_PDU; - stream->next_out = out_pdu; - ret = deflate(stream, Z_BLOCK); - /* may be Z_OK, or Z_STREAM_END */ - if (ret < 0) { - free(out_pdu); - return 1; - } - - this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream->avail_out; - - entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len, - NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE); - flist_add_tail(&entry->list, &first->next); - } while (stream->avail_in); - - return 0; -} - -static int fio_append_iolog_gz(struct sk_entry *first, struct io_log *log) -{ - int ret = 0; - z_stream stream; - - memset(&stream, 0, sizeof(stream)); - stream.zalloc = Z_NULL; - stream.zfree = Z_NULL; - stream.opaque = Z_NULL; - - if (deflateInit(&stream, Z_DEFAULT_COMPRESSION) != Z_OK) - return 1; - - while (!flist_empty(&log->io_logs)) { - struct io_logs *cur_log; - - cur_log = flist_first_entry(&log->io_logs, struct io_logs, list); - flist_del_init(&cur_log->list); - - ret = __fio_append_iolog_gz(first, log, cur_log, &stream); - if (ret) - break; - } - - ret = deflate(&stream, Z_FINISH); - - while (ret != Z_STREAM_END) { - struct sk_entry *entry; - unsigned int this_len; - void *out_pdu; - - out_pdu = malloc(FIO_SERVER_MAX_FRAGMENT_PDU); - stream.avail_out = FIO_SERVER_MAX_FRAGMENT_PDU; - stream.next_out = out_pdu; - - ret = deflate(&stream, Z_FINISH); - /* may be Z_OK, or Z_STREAM_END */ - if (ret < 0) { - free(out_pdu); - break; - } - - this_len = FIO_SERVER_MAX_FRAGMENT_PDU - stream.avail_out; - - entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, out_pdu, this_len, - NULL, SK_F_VEC | SK_F_INLINE | SK_F_FREE); - flist_add_tail(&entry->list, &first->next); - } while (ret != Z_STREAM_END); - - ret = deflateEnd(&stream); - if (ret == Z_OK) - return 0; - - return 1; -} -#else -static int fio_append_iolog_gz(struct sk_entry *first, struct io_log *log) -{ - return 1; -} -#endif - -static int fio_append_gz_chunks(struct sk_entry *first, struct io_log *log) -{ - struct sk_entry *entry; - struct flist_head *node; - - pthread_mutex_lock(&log->chunk_lock); - flist_for_each(node, &log->chunk_list) { - struct iolog_compress *c; - - c = flist_entry(node, struct iolog_compress, list); - entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, c->buf, c->len, - NULL, SK_F_VEC | SK_F_INLINE); - flist_add_tail(&entry->list, &first->next); - } - pthread_mutex_unlock(&log->chunk_lock); - - return 0; -} - -static int fio_append_text_log(struct sk_entry *first, struct io_log *log) -{ - struct sk_entry *entry; - - while (!flist_empty(&log->io_logs)) { - struct io_logs *cur_log; - size_t size; - - cur_log = flist_first_entry(&log->io_logs, struct io_logs, list); - flist_del_init(&cur_log->list); - - size = cur_log->nr_samples * log_entry_sz(log); - - entry = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, cur_log->log, size, - NULL, SK_F_VEC | SK_F_INLINE); - flist_add_tail(&entry->list, &first->next); - } - - return 0; -} - -int fio_send_iolog(struct thread_data *td, struct io_log *log, const char *name) -{ - struct cmd_iolog_pdu pdu; - struct sk_entry *first; - struct flist_head *entry; - int ret = 0; - - pdu.nr_samples = cpu_to_le64(iolog_nr_samples(log)); - pdu.thread_number = cpu_to_le32(td->thread_number); - pdu.log_type = cpu_to_le32(log->log_type); - pdu.log_hist_coarseness = cpu_to_le32(log->hist_coarseness); - - if (!flist_empty(&log->chunk_list)) - pdu.compressed = __cpu_to_le32(STORE_COMPRESSED); - else if (use_zlib) - pdu.compressed = __cpu_to_le32(XMIT_COMPRESSED); - else - pdu.compressed = 0; - - strncpy((char *) pdu.name, name, FIO_NET_NAME_MAX); - pdu.name[FIO_NET_NAME_MAX - 1] = '\0'; - - /* - * We can't do this for a pre-compressed log, but for that case, - * log->nr_samples is zero anyway. - */ - flist_for_each(entry, &log->io_logs) { - struct io_logs *cur_log; - int i; - - cur_log = flist_entry(entry, struct io_logs, list); - - for (i = 0; i < cur_log->nr_samples; i++) { - struct io_sample *s = get_sample(log, cur_log, i); - - s->time = cpu_to_le64(s->time); - s->data.val = cpu_to_le64(s->data.val); - s->__ddir = cpu_to_le32(s->__ddir); - s->bs = cpu_to_le32(s->bs); - - if (log->log_offset) { - struct io_sample_offset *so = (void *) s; - - so->offset = cpu_to_le64(so->offset); - } - } - } - - /* - * Assemble header entry first - */ - first = fio_net_prep_cmd(FIO_NET_CMD_IOLOG, &pdu, sizeof(pdu), NULL, SK_F_VEC | SK_F_INLINE | SK_F_COPY); - - /* - * Now append actual log entries. If log compression was enabled on - * the job, just send out the compressed chunks directly. If we - * have a plain log, compress if we can, then send. Otherwise, send - * the plain text output. - */ - if (!flist_empty(&log->chunk_list)) - ret = fio_append_gz_chunks(first, log); - else if (use_zlib) - ret = fio_append_iolog_gz(first, log); - else - ret = fio_append_text_log(first, log); - - fio_net_queue_entry(first); - return ret; -} - -void fio_server_send_add_job(struct thread_data *td) -{ - struct cmd_add_job_pdu pdu; - - memset(&pdu, 0, sizeof(pdu)); - pdu.thread_number = cpu_to_le32(td->thread_number); - pdu.groupid = cpu_to_le32(td->groupid); - convert_thread_options_to_net(&pdu.top, &td->o); - - fio_net_queue_cmd(FIO_NET_CMD_ADD_JOB, &pdu, sizeof(pdu), NULL, - SK_F_COPY); -} - -void fio_server_send_start(struct thread_data *td) -{ - struct sk_out *sk_out = pthread_getspecific(sk_out_key); - - assert(sk_out->sk != -1); - - fio_net_queue_cmd(FIO_NET_CMD_SERVER_START, NULL, 0, NULL, SK_F_SIMPLE); -} - -int fio_server_get_verify_state(const char *name, int threadnumber, - void **datap) -{ - struct thread_io_list *s; - struct cmd_sendfile out; - struct cmd_reply *rep; - uint64_t tag; - void *data; - int ret; - - dprint(FD_NET, "server: request verify state\n"); - - rep = smalloc(sizeof(*rep)); - if (!rep) - return ENOMEM; - - __fio_mutex_init(&rep->lock, FIO_MUTEX_LOCKED); - rep->data = NULL; - rep->error = 0; - - verify_state_gen_name((char *) out.path, sizeof(out.path), name, me, - threadnumber); - tag = (uint64_t) (uintptr_t) rep; - fio_net_queue_cmd(FIO_NET_CMD_SENDFILE, &out, sizeof(out), &tag, - SK_F_COPY); - - /* - * Wait for the backend to receive the reply - */ - if (fio_mutex_down_timeout(&rep->lock, 10000)) { - log_err("fio: timed out waiting for reply\n"); - ret = ETIMEDOUT; - goto fail; - } - - if (rep->error) { - log_err("fio: failure on receiving state file %s: %s\n", - out.path, strerror(rep->error)); - ret = rep->error; -fail: - *datap = NULL; - sfree(rep); - fio_net_queue_quit(); - return ret; - } - - /* - * The format is verify_state_hdr, then thread_io_list. Verify - * the header, and the thread_io_list checksum - */ - s = rep->data + sizeof(struct verify_state_hdr); - if (verify_state_hdr(rep->data, s)) { - ret = EILSEQ; - goto fail; - } - - /* - * Don't need the header from now, copy just the thread_io_list - */ - ret = 0; - rep->size -= sizeof(struct verify_state_hdr); - data = malloc(rep->size); - memcpy(data, s, rep->size); - *datap = data; - - sfree(rep->data); - __fio_mutex_remove(&rep->lock); - sfree(rep); - return ret; -} - -static int fio_init_server_ip(void) -{ - struct sockaddr *addr; - socklen_t socklen; - char buf[80]; - const char *str; - int sk, opt; - - if (use_ipv6) - sk = socket(AF_INET6, SOCK_STREAM, 0); - else - sk = socket(AF_INET, SOCK_STREAM, 0); - - if (sk < 0) { - log_err("fio: socket: %s\n", strerror(errno)); - return -1; - } - - opt = 1; - if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, (void *)&opt, sizeof(opt)) < 0) { - log_err("fio: setsockopt(REUSEADDR): %s\n", strerror(errno)); - close(sk); - return -1; - } -#ifdef SO_REUSEPORT - /* - * Not fatal if fails, so just ignore it if that happens - */ - setsockopt(sk, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)); -#endif - - if (use_ipv6) { - const void *src = &saddr_in6.sin6_addr; - - addr = (struct sockaddr *) &saddr_in6; - socklen = sizeof(saddr_in6); - saddr_in6.sin6_family = AF_INET6; - str = inet_ntop(AF_INET6, src, buf, sizeof(buf)); - } else { - const void *src = &saddr_in.sin_addr; - - addr = (struct sockaddr *) &saddr_in; - socklen = sizeof(saddr_in); - saddr_in.sin_family = AF_INET; - str = inet_ntop(AF_INET, src, buf, sizeof(buf)); - } - - if (bind(sk, addr, socklen) < 0) { - log_err("fio: bind: %s\n", strerror(errno)); - log_info("fio: failed with IPv%c %s\n", use_ipv6 ? '6' : '4', str); - close(sk); - return -1; - } - - return sk; -} - -static int fio_init_server_sock(void) -{ - struct sockaddr_un addr; - socklen_t len; - mode_t mode; - int sk; - - sk = socket(AF_UNIX, SOCK_STREAM, 0); - if (sk < 0) { - log_err("fio: socket: %s\n", strerror(errno)); - return -1; - } - - mode = umask(000); - - memset(&addr, 0, sizeof(addr)); - addr.sun_family = AF_UNIX; - strncpy(addr.sun_path, bind_sock, sizeof(addr.sun_path) - 1); - - len = sizeof(addr.sun_family) + strlen(bind_sock) + 1; - - if (bind(sk, (struct sockaddr *) &addr, len) < 0) { - log_err("fio: bind: %s\n", strerror(errno)); - close(sk); - return -1; - } - - umask(mode); - return sk; -} - -static int fio_init_server_connection(void) -{ - char bind_str[128]; - int sk; - - dprint(FD_NET, "starting server\n"); - - if (!bind_sock) - sk = fio_init_server_ip(); - else - sk = fio_init_server_sock(); - - if (sk < 0) - return sk; - - memset(bind_str, 0, sizeof(bind_str)); - - if (!bind_sock) { - char *p, port[16]; - const void *src; - int af; - - if (use_ipv6) { - af = AF_INET6; - src = &saddr_in6.sin6_addr; - } else { - af = AF_INET; - src = &saddr_in.sin_addr; - } - - p = (char *) inet_ntop(af, src, bind_str, sizeof(bind_str)); - - sprintf(port, ",%u", fio_net_port); - if (p) - strcat(p, port); - else - strncpy(bind_str, port, sizeof(bind_str) - 1); - } else - strncpy(bind_str, bind_sock, sizeof(bind_str) - 1); - - log_info("fio: server listening on %s\n", bind_str); - - if (listen(sk, 4) < 0) { - log_err("fio: listen: %s\n", strerror(errno)); - close(sk); - return -1; - } - - return sk; -} - -int fio_server_parse_host(const char *host, int ipv6, struct in_addr *inp, - struct in6_addr *inp6) - -{ - int ret = 0; - - if (ipv6) - ret = inet_pton(AF_INET6, host, inp6); - else - ret = inet_pton(AF_INET, host, inp); - - if (ret != 1) { - struct addrinfo hints, *res; - - memset(&hints, 0, sizeof(hints)); - hints.ai_family = ipv6 ? AF_INET6 : AF_INET; - hints.ai_socktype = SOCK_STREAM; - - ret = getaddrinfo(host, NULL, &hints, &res); - if (ret) { - log_err("fio: failed to resolve <%s> (%s)\n", host, - gai_strerror(ret)); - return 1; - } - - if (ipv6) - memcpy(inp6, &((struct sockaddr_in6 *) res->ai_addr)->sin6_addr, sizeof(*inp6)); - else - memcpy(inp, &((struct sockaddr_in *) res->ai_addr)->sin_addr, sizeof(*inp)); - - ret = 1; - freeaddrinfo(res); - } - - return !(ret == 1); -} - -/* - * Parse a host/ip/port string. Reads from 'str'. - * - * Outputs: - * - * For IPv4: - * *ptr is the host, *port is the port, inp is the destination. - * For IPv6: - * *ptr is the host, *port is the port, inp6 is the dest, and *ipv6 is 1. - * For local domain sockets: - * *ptr is the filename, *is_sock is 1. - */ -int fio_server_parse_string(const char *str, char **ptr, int *is_sock, - int *port, struct in_addr *inp, - struct in6_addr *inp6, int *ipv6) -{ - const char *host = str; - char *portp; - int lport = 0; - - *ptr = NULL; - *is_sock = 0; - *port = fio_net_port; - *ipv6 = 0; - - if (!strncmp(str, "sock:", 5)) { - *ptr = strdup(str + 5); - *is_sock = 1; - - return 0; - } - - /* - * Is it ip:<ip or host>:port - */ - if (!strncmp(host, "ip:", 3)) - host += 3; - else if (!strncmp(host, "ip4:", 4)) - host += 4; - else if (!strncmp(host, "ip6:", 4)) { - host += 4; - *ipv6 = 1; - } else if (host[0] == ':') { - /* String is :port */ - host++; - lport = atoi(host); - if (!lport || lport > 65535) { - log_err("fio: bad server port %u\n", lport); - return 1; - } - /* no hostname given, we are done */ - *port = lport; - return 0; - } - - /* - * If no port seen yet, check if there's a last ',' at the end - */ - if (!lport) { - portp = strchr(host, ','); - if (portp) { - *portp = '\0'; - portp++; - lport = atoi(portp); - if (!lport || lport > 65535) { - log_err("fio: bad server port %u\n", lport); - return 1; - } - } - } - - if (lport) - *port = lport; - - if (!strlen(host)) - return 0; - - *ptr = strdup(host); - - if (fio_server_parse_host(*ptr, *ipv6, inp, inp6)) { - free(*ptr); - *ptr = NULL; - return 1; - } - - if (*port == 0) - *port = fio_net_port; - - return 0; -} - -/* - * Server arg should be one of: - * - * sock:/path/to/socket - * ip:1.2.3.4 - * 1.2.3.4 - * - * Where sock uses unix domain sockets, and ip binds the server to - * a specific interface. If no arguments are given to the server, it - * uses IP and binds to 0.0.0.0. - * - */ -static int fio_handle_server_arg(void) -{ - int port = fio_net_port; - int is_sock, ret = 0; - - saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); - - if (!fio_server_arg) - goto out; - - ret = fio_server_parse_string(fio_server_arg, &bind_sock, &is_sock, - &port, &saddr_in.sin_addr, - &saddr_in6.sin6_addr, &use_ipv6); - - if (!is_sock && bind_sock) { - free(bind_sock); - bind_sock = NULL; - } - -out: - fio_net_port = port; - saddr_in.sin_port = htons(port); - saddr_in6.sin6_port = htons(port); - return ret; -} - -static void sig_int(int sig) -{ - if (bind_sock) - unlink(bind_sock); -} - -static void set_sig_handlers(void) -{ - struct sigaction act; - - memset(&act, 0, sizeof(act)); - act.sa_handler = sig_int; - act.sa_flags = SA_RESTART; - sigaction(SIGINT, &act, NULL); -} - -void fio_server_destroy_sk_key(void) -{ - pthread_key_delete(sk_out_key); -} - -int fio_server_create_sk_key(void) -{ - if (pthread_key_create(&sk_out_key, NULL)) { - log_err("fio: can't create sk_out backend key\n"); - return 1; - } - - pthread_setspecific(sk_out_key, NULL); - return 0; -} - -static int fio_server(void) -{ - int sk, ret; - - dprint(FD_NET, "starting server\n"); - - if (fio_handle_server_arg()) - return -1; - - sk = fio_init_server_connection(); - if (sk < 0) - return -1; - - set_sig_handlers(); - - ret = accept_loop(sk); - - close(sk); - - if (fio_server_arg) { - free(fio_server_arg); - fio_server_arg = NULL; - } - if (bind_sock) - free(bind_sock); - - return ret; -} - -void fio_server_got_signal(int signal) -{ - struct sk_out *sk_out = pthread_getspecific(sk_out_key); - - assert(sk_out); - - if (signal == SIGPIPE) - sk_out->sk = -1; - else { - log_info("\nfio: terminating on signal %d\n", signal); - exit_backend = 1; - } -} - -static int check_existing_pidfile(const char *pidfile) -{ - struct stat sb; - char buf[16]; - pid_t pid; - FILE *f; - - if (stat(pidfile, &sb)) - return 0; - - f = fopen(pidfile, "r"); - if (!f) - return 0; - - if (fread(buf, sb.st_size, 1, f) <= 0) { - fclose(f); - return 1; - } - fclose(f); - - pid = atoi(buf); - if (kill(pid, SIGCONT) < 0) - return errno != ESRCH; - - return 1; -} - -static int write_pid(pid_t pid, const char *pidfile) -{ - FILE *fpid; - - fpid = fopen(pidfile, "w"); - if (!fpid) { - log_err("fio: failed opening pid file %s\n", pidfile); - return 1; - } - - fprintf(fpid, "%u\n", (unsigned int) pid); - fclose(fpid); - return 0; -} - -/* - * If pidfile is specified, background us. - */ -int fio_start_server(char *pidfile) -{ - pid_t pid; - int ret; - -#if defined(WIN32) - WSADATA wsd; - WSAStartup(MAKEWORD(2, 2), &wsd); -#endif - - if (!pidfile) - return fio_server(); - - if (check_existing_pidfile(pidfile)) { - log_err("fio: pidfile %s exists and server appears alive\n", - pidfile); - free(pidfile); - return -1; - } - - pid = fork(); - if (pid < 0) { - log_err("fio: failed server fork: %s\n", strerror(errno)); - free(pidfile); - return -1; - } else if (pid) { - ret = write_pid(pid, pidfile); - free(pidfile); - _exit(ret); - } - - setsid(); - openlog("fio", LOG_NDELAY|LOG_NOWAIT|LOG_PID, LOG_USER); - log_syslog = 1; - close(STDIN_FILENO); - close(STDOUT_FILENO); - close(STDERR_FILENO); - f_out = NULL; - f_err = NULL; - - ret = fio_server(); - - closelog(); - unlink(pidfile); - free(pidfile); - return ret; -} - -void fio_server_set_arg(const char *arg) -{ - fio_server_arg = strdup(arg); -} |