Commit | Line | Data |
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132159a5 JA |
1 | #include <stdio.h> |
2 | #include <stdlib.h> | |
3 | #include <unistd.h> | |
4 | #include <limits.h> | |
5 | #include <errno.h> | |
6 | #include <fcntl.h> | |
7 | #include <sys/poll.h> | |
8 | #include <sys/types.h> | |
9 | #include <sys/stat.h> | |
10 | #include <sys/wait.h> | |
11 | #include <sys/mman.h> | |
12 | #include <netinet/in.h> | |
13 | #include <arpa/inet.h> | |
14 | #include <netdb.h> | |
15 | ||
16 | #include "fio.h" | |
17 | #include "server.h" | |
18 | #include "crc/crc32.h" | |
b66570dc | 19 | #include "flist.h" |
132159a5 | 20 | |
b66570dc JA |
21 | struct fio_client { |
22 | struct flist_head list; | |
23 | struct sockaddr_in addr; | |
24 | char *hostname; | |
25 | int fd; | |
26 | }; | |
27 | ||
28 | static FLIST_HEAD(client_list); | |
b66570dc JA |
29 | |
30 | static struct fio_client *find_client_by_fd(int fd) | |
31 | { | |
32 | struct fio_client *client; | |
33 | struct flist_head *entry; | |
34 | ||
35 | flist_for_each(entry, &client_list) { | |
36 | client = flist_entry(entry, struct fio_client, list); | |
37 | ||
38 | if (client->fd == fd) | |
39 | return client; | |
40 | } | |
41 | ||
42 | return NULL; | |
43 | } | |
44 | ||
a37f69b7 | 45 | #if 0 |
b66570dc JA |
46 | static struct fio_client *find_client_by_name(const char *name) |
47 | { | |
48 | struct fio_client *client; | |
49 | struct flist_head *entry; | |
50 | ||
51 | flist_for_each(entry, &client_list) { | |
52 | client = flist_entry(entry, struct fio_client, list); | |
53 | ||
54 | if (!strcmp(name, client->hostname)) | |
55 | return client; | |
56 | } | |
57 | ||
58 | return NULL; | |
59 | } | |
a37f69b7 | 60 | #endif |
b66570dc JA |
61 | |
62 | static void remove_client(struct fio_client *client) | |
63 | { | |
46c48f1f | 64 | dprint(FD_NET, "removed client <%s>\n", client->hostname); |
b66570dc JA |
65 | flist_del(&client->list); |
66 | nr_clients--; | |
67 | free(client->hostname); | |
68 | free(client); | |
69 | } | |
132159a5 | 70 | |
a37f69b7 | 71 | void fio_client_add(const char *hostname) |
132159a5 | 72 | { |
b66570dc | 73 | struct fio_client *client; |
132159a5 | 74 | |
46c48f1f | 75 | dprint(FD_NET, "added client <%s>\n", hostname); |
b66570dc | 76 | client = malloc(sizeof(*client)); |
a37f69b7 JA |
77 | memset(client, 0, sizeof(*client)); |
78 | client->hostname = strdup(hostname); | |
79 | client->fd = -1; | |
80 | flist_add(&client->list, &client_list); | |
81 | nr_clients++; | |
82 | } | |
83 | ||
84 | static int fio_client_connect(struct fio_client *client) | |
85 | { | |
86 | int fd; | |
132159a5 | 87 | |
46c48f1f JA |
88 | dprint(FD_NET, "connect to host %s\n", client->hostname); |
89 | ||
b66570dc JA |
90 | memset(&client->addr, 0, sizeof(client->addr)); |
91 | client->addr.sin_family = AF_INET; | |
92 | client->addr.sin_port = htons(fio_net_port); | |
93 | ||
a37f69b7 | 94 | if (inet_aton(client->hostname, &client->addr.sin_addr) != 1) { |
132159a5 JA |
95 | struct hostent *hent; |
96 | ||
a37f69b7 | 97 | hent = gethostbyname(client->hostname); |
132159a5 JA |
98 | if (!hent) { |
99 | log_err("fio: gethostbyname: %s\n", strerror(errno)); | |
100 | return 1; | |
101 | } | |
102 | ||
b66570dc | 103 | memcpy(&client->addr.sin_addr, hent->h_addr, 4); |
132159a5 JA |
104 | } |
105 | ||
106 | fd = socket(AF_INET, SOCK_STREAM, 0); | |
107 | if (fd < 0) { | |
108 | log_err("fio: socket: %s\n", strerror(errno)); | |
b66570dc | 109 | free(client); |
132159a5 JA |
110 | return 1; |
111 | } | |
112 | ||
b66570dc | 113 | if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) { |
132159a5 | 114 | log_err("fio: connect: %s\n", strerror(errno)); |
b66570dc | 115 | free(client); |
132159a5 JA |
116 | return 1; |
117 | } | |
118 | ||
b66570dc | 119 | client->fd = fd; |
132159a5 JA |
120 | return 0; |
121 | } | |
122 | ||
a37f69b7 JA |
123 | int fio_clients_connect(void) |
124 | { | |
125 | struct fio_client *client; | |
126 | struct flist_head *entry, *tmp; | |
127 | int ret; | |
128 | ||
129 | flist_for_each_safe(entry, tmp, &client_list) { | |
130 | client = flist_entry(entry, struct fio_client, list); | |
131 | ||
132 | ret = fio_client_connect(client); | |
133 | if (ret) | |
134 | remove_client(client); | |
135 | } | |
136 | ||
137 | return !nr_clients; | |
138 | } | |
139 | ||
b66570dc | 140 | static int send_file_buf(struct fio_client *client, char *buf, off_t size) |
132159a5 | 141 | { |
b66570dc | 142 | return fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, size); |
132159a5 JA |
143 | } |
144 | ||
145 | /* | |
146 | * Send file contents to server backend. We could use sendfile(), but to remain | |
147 | * more portable lets just read/write the darn thing. | |
148 | */ | |
a37f69b7 | 149 | static int fio_client_send_ini(struct fio_client *client, const char *filename) |
132159a5 JA |
150 | { |
151 | struct stat sb; | |
152 | char *p, *buf; | |
153 | off_t len; | |
154 | int fd, ret; | |
155 | ||
46c48f1f JA |
156 | dprint(FD_NET, "send ini %s to %s\n", filename, client->hostname); |
157 | ||
132159a5 JA |
158 | fd = open(filename, O_RDONLY); |
159 | if (fd < 0) { | |
160 | log_err("fio: job file open: %s\n", strerror(errno)); | |
161 | return 1; | |
162 | } | |
163 | ||
164 | if (fstat(fd, &sb) < 0) { | |
165 | log_err("fio: job file stat: %s\n", strerror(errno)); | |
166 | return 1; | |
167 | } | |
168 | ||
169 | buf = malloc(sb.st_size); | |
170 | ||
171 | len = sb.st_size; | |
172 | p = buf; | |
173 | do { | |
174 | ret = read(fd, p, len); | |
175 | if (ret > 0) { | |
176 | len -= ret; | |
177 | if (!len) | |
178 | break; | |
179 | p += ret; | |
180 | continue; | |
181 | } else if (!ret) | |
182 | break; | |
183 | else if (errno == EAGAIN || errno == EINTR) | |
184 | continue; | |
185 | } while (1); | |
186 | ||
b66570dc | 187 | ret = send_file_buf(client, buf, sb.st_size); |
132159a5 JA |
188 | free(buf); |
189 | return ret; | |
190 | } | |
37db14fe | 191 | |
a37f69b7 JA |
192 | int fio_clients_send_ini(const char *filename) |
193 | { | |
194 | struct fio_client *client; | |
195 | struct flist_head *entry, *tmp; | |
196 | ||
197 | flist_for_each_safe(entry, tmp, &client_list) { | |
198 | client = flist_entry(entry, struct fio_client, list); | |
199 | ||
200 | if (fio_client_send_ini(client, filename)) | |
201 | remove_client(client); | |
202 | } | |
203 | ||
204 | return !nr_clients; | |
205 | } | |
206 | ||
b66570dc | 207 | static int handle_client(struct fio_client *client) |
37db14fe JA |
208 | { |
209 | struct fio_net_cmd *cmd; | |
210 | ||
b66570dc | 211 | while ((cmd = fio_net_cmd_read(client->fd)) != NULL) { |
46c48f1f JA |
212 | dprint(FD_NET, "%s: got cmd op %d\n", client->hostname, |
213 | cmd->opcode); | |
214 | ||
37db14fe JA |
215 | if (cmd->opcode == FIO_NET_CMD_ACK) { |
216 | free(cmd); | |
217 | continue; | |
218 | } | |
437377e1 | 219 | if (cmd->opcode == FIO_NET_CMD_QUIT) { |
b66570dc | 220 | remove_client(client); |
437377e1 JA |
221 | free(cmd); |
222 | break; | |
223 | } | |
37db14fe JA |
224 | if (cmd->opcode != FIO_NET_CMD_TEXT) { |
225 | printf("non text: %d\n", cmd->opcode); | |
226 | free(cmd); | |
227 | continue; | |
228 | } | |
49d14c0f | 229 | fwrite(cmd->payload, cmd->pdu_len, 1, stdout); |
37db14fe JA |
230 | fflush(stdout); |
231 | free(cmd); | |
232 | } | |
233 | ||
234 | return 0; | |
235 | } | |
b66570dc JA |
236 | |
237 | int fio_handle_clients(void) | |
238 | { | |
239 | struct fio_client *client; | |
240 | struct flist_head *entry; | |
241 | struct pollfd *pfds; | |
82a4be1b | 242 | int i, ret = 0; |
b66570dc JA |
243 | |
244 | pfds = malloc(nr_clients * sizeof(struct pollfd)); | |
245 | ||
82a4be1b JA |
246 | while (!exit_backend && nr_clients) { |
247 | i = 0; | |
248 | flist_for_each(entry, &client_list) { | |
249 | client = flist_entry(entry, struct fio_client, list); | |
b66570dc | 250 | |
82a4be1b JA |
251 | pfds[i].fd = client->fd; |
252 | pfds[i].events = POLLIN; | |
253 | i++; | |
254 | } | |
255 | ||
256 | assert(i == nr_clients); | |
b66570dc | 257 | |
b66570dc JA |
258 | ret = poll(pfds, nr_clients, 100); |
259 | if (ret < 0) { | |
260 | if (errno == EINTR) | |
261 | continue; | |
262 | log_err("fio: poll clients: %s\n", strerror(errno)); | |
263 | break; | |
264 | } else if (!ret) | |
265 | continue; | |
266 | ||
267 | for (i = 0; i < nr_clients; i++) { | |
268 | if (!(pfds[i].revents & POLLIN)) | |
269 | continue; | |
270 | ||
271 | client = find_client_by_fd(pfds[i].fd); | |
272 | if (!client) { | |
273 | log_err("fio: unknown client\n"); | |
274 | continue; | |
275 | } | |
276 | handle_client(client); | |
277 | } | |
278 | } | |
279 | ||
280 | free(pfds); | |
281 | ||
282 | return 0; | |
283 | } |