server: rename CMD_RUN to CMD_SERVER_START
[fio.git] / client.c
index c794d9b1495d14c83eb8ec4f8ba7f70251552791..a77dc9350e0d1d57ffcc2c7f065204b3f9b5b254 100644 (file)
--- a/client.c
+++ b/client.c
 #include "flist.h"
 #include "hash.h"
 
-struct client_eta {
-       struct jobs_eta eta;
-       unsigned int pending;
-};
-
-struct fio_client {
-       struct flist_head list;
-       struct flist_head hash_list;
-       struct flist_head arg_list;
-       union {
-               struct sockaddr_in addr;
-               struct sockaddr_in6 addr6;
-               struct sockaddr_un addr_un;
-       };
-       char *hostname;
-       int port;
-       int fd;
-
-       char *name;
-
-       int state;
-
-       int skip_newline;
-       int is_sock;
-       int disk_stats_shown;
-       unsigned int jobs;
-       int error;
-       int ipv6;
-       int sent_job;
-
-       struct flist_head eta_list;
-       struct client_eta *eta_in_flight;
-
-       struct flist_head cmd_list;
-
-       uint16_t argc;
-       char **argv;
-};
-
-static void fio_client_text_op(struct fio_client *client,
-               FILE *f, __u16 pdu_len, const char *buf)
-{
-       const char *name;
-       int fio_unused ret;
-
-       name = client->name ? client->name : client->hostname;
-
-       if (!client->skip_newline)
-               fprintf(f, "<%s> ", name);
-       ret = fwrite(buf, pdu_len, 1, f);
-       fflush(f);
-       client->skip_newline = strchr(buf, '\n') == NULL;
-}
-
 static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd);
-static void handle_ts(struct fio_net_cmd *cmd);
-static void handle_gs(struct fio_net_cmd *cmd);
-static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd);
+static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd);
+static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd);
 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd);
+static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd);
+static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd);
 
 struct client_ops fio_client_ops = {
-       fio_client_text_op,
-       handle_du,
-       handle_ts,
-       handle_gs,
-       handle_eta,
-       handle_probe,
+       .text_op        = handle_text,
+       .disk_util      = handle_du,
+       .thread_status  = handle_ts,
+       .group_stats    = handle_gs,
+       .stop           = handle_stop,
+       .eta            = display_thread_status,
+       .probe          = handle_probe,
 };
 
 static struct timeval eta_tv;
@@ -106,9 +54,10 @@ static FLIST_HEAD(eta_list);
 
 static FLIST_HEAD(arg_list);
 
-static struct thread_stat client_ts;
-static struct group_run_stats client_gs;
-static int sum_stat_clients;
+struct thread_stat client_ts;
+struct group_run_stats client_gs;
+int sum_stat_clients;
+
 static int sum_stat_nr;
 
 #define FIO_CLIENT_HASH_BITS   7
@@ -116,9 +65,6 @@ static int sum_stat_nr;
 #define FIO_CLIENT_HASH_MASK   (FIO_CLIENT_HASH_SZ - 1)
 static struct flist_head client_hash[FIO_CLIENT_HASH_SZ];
 
-static int handle_client(struct fio_client *client, struct client_ops *ops);
-static void dec_jobs_eta(struct client_eta *eta);
-
 static void fio_client_add_hash(struct fio_client *client)
 {
        int bucket = hash_long(client->fd, FIO_CLIENT_HASH_BITS);
@@ -150,8 +96,10 @@ static struct fio_client *find_client_by_fd(int fd)
        flist_for_each(entry, &client_hash[bucket]) {
                client = flist_entry(entry, struct fio_client, hash_list);
 
-               if (client->fd == fd)
+               if (client->fd == fd) {
+                       client->refs++;
                        return client;
+               }
        }
 
        return NULL;
@@ -159,6 +107,11 @@ static struct fio_client *find_client_by_fd(int fd)
 
 static void remove_client(struct fio_client *client)
 {
+       assert(client->refs);
+
+       if (--client->refs)
+               return;
+
        dprint(FD_NET, "client: removed <%s>\n", client->hostname);
        flist_del(&client->list);
 
@@ -166,7 +119,7 @@ static void remove_client(struct fio_client *client)
 
        if (!flist_empty(&client->eta_list)) {
                flist_del_init(&client->eta_list);
-               dec_jobs_eta(client->eta_in_flight);
+               fio_client_dec_jobs_eta(client->eta_in_flight, client->ops->eta);
        }
 
        free(client->hostname);
@@ -180,6 +133,11 @@ static void remove_client(struct fio_client *client)
        sum_stat_clients--;
 }
 
+static void put_client(struct fio_client *client)
+{
+       remove_client(client);
+}
+
 static void __fio_client_add_cmd_option(struct fio_client *client,
                                        const char *opt)
 {
@@ -211,7 +169,53 @@ void fio_client_add_cmd_option(void *cookie, const char *opt)
        }
 }
 
-int fio_client_add(const char *hostname, void **cookie)
+struct fio_client *fio_client_add_explicit(struct client_ops *ops,
+                                          const char *hostname, int type,
+                                          int port)
+{
+       struct fio_client *client;
+
+       client = malloc(sizeof(*client));
+       memset(client, 0, sizeof(*client));
+
+       INIT_FLIST_HEAD(&client->list);
+       INIT_FLIST_HEAD(&client->hash_list);
+       INIT_FLIST_HEAD(&client->arg_list);
+       INIT_FLIST_HEAD(&client->eta_list);
+       INIT_FLIST_HEAD(&client->cmd_list);
+
+       client->hostname = strdup(hostname);
+
+       if (type == Fio_client_socket)
+               client->is_sock = 1;
+       else {
+               int ipv6;
+
+               ipv6 = type == Fio_client_ipv6;
+               if (fio_server_parse_host(hostname, &ipv6,
+                                               &client->addr.sin_addr,
+                                               &client->addr6.sin6_addr))
+                       goto err;
+
+               client->port = port;
+       }
+
+       client->fd = -1;
+       client->ops = ops;
+       client->refs = 1;
+
+       __fio_client_add_cmd_option(client, "fio");
+
+       flist_add(&client->list, &client_list);
+       nr_clients++;
+       dprint(FD_NET, "client: added <%s>\n", client->hostname);
+       return client;
+err:
+       free(client);
+       return NULL;
+}
+
+int fio_client_add(struct client_ops *ops, const char *hostname, void **cookie)
 {
        struct fio_client *existing = *cookie;
        struct fio_client *client;
@@ -246,6 +250,8 @@ int fio_client_add(const char *hostname, void **cookie)
                return -1;
 
        client->fd = -1;
+       client->ops = ops;
+       client->refs = 1;
 
        __fio_client_add_cmd_option(client, "fio");
 
@@ -632,13 +638,10 @@ static void convert_gs(struct group_run_stats *dst, struct group_run_stats *src)
        dst->groupid    = le32_to_cpu(src->groupid);
 }
 
-static void handle_ts(struct fio_net_cmd *cmd)
+static void handle_ts(struct fio_client *client, struct fio_net_cmd *cmd)
 {
        struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
 
-       convert_ts(&p->ts, &p->ts);
-       convert_gs(&p->rs, &p->rs);
-
        show_thread_status(&p->ts, &p->rs);
 
        if (sum_stat_clients == 1)
@@ -656,14 +659,29 @@ static void handle_ts(struct fio_net_cmd *cmd)
        }
 }
 
-static void handle_gs(struct fio_net_cmd *cmd)
+static void handle_gs(struct fio_client *client, struct fio_net_cmd *cmd)
 {
        struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
 
-       convert_gs(gs, gs);
        show_group_stats(gs);
 }
 
+static void handle_text(struct fio_client *client, struct fio_net_cmd *cmd)
+{
+       struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
+       const char *buf = (const char *) pdu->buf;
+       const char *name;
+       int fio_unused ret;
+
+       name = client->name ? client->name : client->hostname;
+
+       if (!client->skip_newline)
+               fprintf(f_out, "<%s> ", name);
+       ret = fwrite(buf, pdu->buf_len, 1, f_out);
+       fflush(f_out);
+       client->skip_newline = strchr(buf, '\n') == NULL;
+}
+
 static void convert_agg(struct disk_util_agg *agg)
 {
        int i;
@@ -701,9 +719,6 @@ static void handle_du(struct fio_client *client, struct fio_net_cmd *cmd)
 {
        struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
 
-       convert_dus(&du->dus);
-       convert_agg(&du->agg);
-
        if (!client->disk_stats_shown) {
                client->disk_stats_shown = 1;
                log_info("\nDisk stats (read/write):\n");
@@ -720,21 +735,22 @@ static void convert_jobs_eta(struct jobs_eta *je)
        je->nr_ramp             = le32_to_cpu(je->nr_ramp);
        je->nr_pending          = le32_to_cpu(je->nr_pending);
        je->files_open          = le32_to_cpu(je->files_open);
-       je->m_rate              = le32_to_cpu(je->m_rate);
-       je->t_rate              = le32_to_cpu(je->t_rate);
-       je->m_iops              = le32_to_cpu(je->m_iops);
-       je->t_iops              = le32_to_cpu(je->t_iops);
 
        for (i = 0; i < 2; i++) {
+               je->m_rate[i]           = le32_to_cpu(je->m_rate[i]);
+               je->t_rate[i]           = le32_to_cpu(je->t_rate[i]);
+               je->m_iops[i]           = le32_to_cpu(je->m_iops[i]);
+               je->t_iops[i]           = le32_to_cpu(je->t_iops[i]);
                je->rate[i]     = le32_to_cpu(je->rate[i]);
                je->iops[i]     = le32_to_cpu(je->iops[i]);
        }
 
        je->elapsed_sec         = le64_to_cpu(je->elapsed_sec);
        je->eta_sec             = le64_to_cpu(je->eta_sec);
+       je->nr_threads          = le32_to_cpu(je->nr_threads);
 }
 
-static void sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
+void fio_client_sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
 {
        int i;
 
@@ -742,12 +758,12 @@ static void sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
        dst->nr_ramp            += je->nr_ramp;
        dst->nr_pending         += je->nr_pending;
        dst->files_open         += je->files_open;
-       dst->m_rate             += je->m_rate;
-       dst->t_rate             += je->t_rate;
-       dst->m_iops             += je->m_iops;
-       dst->t_iops             += je->t_iops;
 
        for (i = 0; i < 2; i++) {
+               dst->m_rate[i]  += je->m_rate[i];
+               dst->t_rate[i]  += je->t_rate[i];
+               dst->m_iops[i]  += je->m_iops[i];
+               dst->t_iops[i]  += je->t_iops[i];
                dst->rate[i]    += je->rate[i];
                dst->iops[i]    += je->iops[i];
        }
@@ -756,12 +772,15 @@ static void sum_jobs_eta(struct jobs_eta *dst, struct jobs_eta *je)
 
        if (je->eta_sec > dst->eta_sec)
                dst->eta_sec = je->eta_sec;
+
+       dst->nr_threads         += je->nr_threads;
+       /* we need to handle je->run_str too ... */
 }
 
-static void dec_jobs_eta(struct client_eta *eta)
+void fio_client_dec_jobs_eta(struct client_eta *eta, client_eta_op eta_fn)
 {
        if (!--eta->pending) {
-               display_thread_status(&eta->eta);
+               eta_fn(&eta->eta);
                free(eta);
        }
 }
@@ -802,9 +821,8 @@ static void handle_eta(struct fio_client *client, struct fio_net_cmd *cmd)
        client->eta_in_flight = NULL;
        flist_del_init(&client->eta_list);
 
-       convert_jobs_eta(je);
-       sum_jobs_eta(&eta->eta, je);
-       dec_jobs_eta(eta);
+       fio_client_sum_jobs_eta(&eta->eta, je);
+       fio_client_dec_jobs_eta(eta, client->ops->eta);
 }
 
 static void handle_probe(struct fio_client *client, struct fio_net_cmd *cmd)
@@ -840,18 +858,31 @@ static void handle_start(struct fio_client *client, struct fio_net_cmd *cmd)
 }
 
 static void handle_stop(struct fio_client *client, struct fio_net_cmd *cmd)
+{
+       if (client->error)
+               log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
+}
+
+static void convert_stop(struct fio_net_cmd *cmd)
 {
        struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
 
-       client->state = Client_stopped;
-       client->error = le32_to_cpu(pdu->error);
+       pdu->error = le32_to_cpu(pdu->error);
+}
 
-       if (client->error)
-               log_info("client <%s>: exited with error %d\n", client->hostname, client->error);
+static void convert_text(struct fio_net_cmd *cmd)
+{
+       struct cmd_text_pdu *pdu = (struct cmd_text_pdu *) cmd->payload;
+
+       pdu->level      = le32_to_cpu(pdu->level);
+       pdu->buf_len    = le32_to_cpu(pdu->buf_len);
+       pdu->log_sec    = le64_to_cpu(pdu->log_sec);
+       pdu->log_usec   = le64_to_cpu(pdu->log_usec);
 }
 
-static int handle_client(struct fio_client *client, struct client_ops *ops)
+int fio_handle_client(struct fio_client *client)
 {
+       struct client_ops *ops = client->ops;
        struct fio_net_cmd *cmd;
 
        dprint(FD_NET, "client: handle %s\n", client->hostname);
@@ -865,38 +896,60 @@ static int handle_client(struct fio_client *client, struct client_ops *ops)
 
        switch (cmd->opcode) {
        case FIO_NET_CMD_QUIT:
+               if (ops->quit)
+                       ops->quit(client);
                remove_client(client);
                free(cmd);
                break;
-       case FIO_NET_CMD_TEXT: {
-               const char *buf = (const char *) cmd->payload;
-               ops->text_op(client, f_out, cmd->pdu_len, buf);
+       case FIO_NET_CMD_TEXT:
+               convert_text(cmd);
+               ops->text_op(client, cmd);
                free(cmd);
                break;
-               }
-       case FIO_NET_CMD_DU:
+       case FIO_NET_CMD_DU: {
+               struct cmd_du_pdu *du = (struct cmd_du_pdu *) cmd->payload;
+
+               convert_dus(&du->dus);
+               convert_agg(&du->agg);
+
                ops->disk_util(client, cmd);
                free(cmd);
                break;
-       case FIO_NET_CMD_TS:
-               ops->thread_status(cmd);
+               }
+       case FIO_NET_CMD_TS: {
+               struct cmd_ts_pdu *p = (struct cmd_ts_pdu *) cmd->payload;
+
+               convert_ts(&p->ts, &p->ts);
+               convert_gs(&p->rs, &p->rs);
+
+               ops->thread_status(client, cmd);
                free(cmd);
                break;
-       case FIO_NET_CMD_GS:
-               ops->group_stats(cmd);
+               }
+       case FIO_NET_CMD_GS: {
+               struct group_run_stats *gs = (struct group_run_stats *) cmd->payload;
+
+               convert_gs(gs, gs);
+
+               ops->group_stats(client, cmd);
                free(cmd);
                break;
-       case FIO_NET_CMD_ETA:
+               }
+       case FIO_NET_CMD_ETA: {
+               struct jobs_eta *je = (struct jobs_eta *) cmd->payload;
+
                remove_reply_cmd(client, cmd);
-               ops->eta(client, cmd);
+               convert_jobs_eta(je);
+               handle_eta(client, cmd);
                free(cmd);
                break;
+               }
        case FIO_NET_CMD_PROBE:
                remove_reply_cmd(client, cmd);
                ops->probe(client, cmd);
                free(cmd);
                break;
-       case FIO_NET_CMD_RUN:
+       case FIO_NET_CMD_SERVER_START:
                client->state = Client_running;
                free(cmd);
                break;
@@ -904,8 +957,19 @@ static int handle_client(struct fio_client *client, struct client_ops *ops)
                handle_start(client, cmd);
                free(cmd);
                break;
-       case FIO_NET_CMD_STOP:
-               handle_stop(client, cmd);
+       case FIO_NET_CMD_STOP: {
+               struct cmd_end_pdu *pdu = (struct cmd_end_pdu *) cmd->payload;
+
+               convert_stop(cmd);
+               client->state = Client_stopped;
+               client->error = pdu->error;
+               ops->stop(client, cmd);
+               free(cmd);
+               break;
+               }
+       case FIO_NET_CMD_ADD_JOB:
+               if (ops->add_job)
+                       ops->add_job(client, cmd);
                free(cmd);
                break;
        default:
@@ -917,7 +981,7 @@ static int handle_client(struct fio_client *client, struct client_ops *ops)
        return 1;
 }
 
-static void request_client_etas(void)
+static void request_client_etas(struct client_ops *ops)
 {
        struct fio_client *client;
        struct flist_head *entry;
@@ -948,7 +1012,7 @@ static void request_client_etas(void)
        }
 
        while (skipped--)
-               dec_jobs_eta(eta);
+               fio_client_dec_jobs_eta(eta, ops->eta);
 
        dprint(FD_NET, "client: requested eta tag %p\n", eta);
 }
@@ -976,7 +1040,7 @@ static int client_check_cmd_timeout(struct fio_client *client,
        return flist_empty(&client->cmd_list) && ret;
 }
 
-static int fio_client_timed_out(void)
+static int fio_check_clients_timed_out(void)
 {
        struct fio_client *client;
        struct flist_head *entry, *tmp;
@@ -994,7 +1058,11 @@ static int fio_client_timed_out(void)
                if (!client_check_cmd_timeout(client, &tv))
                        continue;
 
-               log_err("fio: client %s timed out\n", client->hostname);
+               if (client->ops->timed_out)
+                       client->ops->timed_out(client);
+               else
+                       log_err("fio: client %s timed out\n", client->hostname);
+
                remove_client(client);
                ret = 1;
        }
@@ -1023,7 +1091,7 @@ int fio_handle_clients(struct client_ops *ops)
                flist_for_each_safe(entry, tmp, &client_list) {
                        client = flist_entry(entry, struct fio_client, list);
 
-                       if (!client->sent_job &&
+                       if (!client->sent_job && !client->ops->stay_connected &&
                            flist_empty(&client->cmd_list)) {
                                remove_client(client);
                                continue;
@@ -1044,10 +1112,10 @@ int fio_handle_clients(struct client_ops *ops)
 
                        gettimeofday(&tv, NULL);
                        if (mtime_since(&eta_tv, &tv) >= 900) {
-                               request_client_etas();
+                               request_client_etas(ops);
                                memcpy(&eta_tv, &tv, sizeof(tv));
 
-                               if (fio_client_timed_out())
+                               if (fio_check_clients_timed_out())
                                        break;
                        }
 
@@ -1070,13 +1138,14 @@ int fio_handle_clients(struct client_ops *ops)
                                log_err("fio: unknown client fd %d\n", pfds[i].fd);
                                continue;
                        }
-                       if (!handle_client(client, ops)) {
+                       if (!fio_handle_client(client)) {
                                log_info("client: host=%s disconnected\n",
                                                client->hostname);
                                remove_client(client);
                                retval = 1;
                        } else if (client->error)
                                retval = 1;
+                       put_client(client);
                }
        }