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 | { | |
b66570dc JA |
64 | flist_del(&client->list); |
65 | nr_clients--; | |
66 | free(client->hostname); | |
67 | free(client); | |
68 | } | |
132159a5 | 69 | |
a37f69b7 | 70 | void fio_client_add(const char *hostname) |
132159a5 | 71 | { |
b66570dc | 72 | struct fio_client *client; |
132159a5 | 73 | |
b66570dc | 74 | client = malloc(sizeof(*client)); |
a37f69b7 JA |
75 | memset(client, 0, sizeof(*client)); |
76 | client->hostname = strdup(hostname); | |
77 | client->fd = -1; | |
78 | flist_add(&client->list, &client_list); | |
79 | nr_clients++; | |
80 | } | |
81 | ||
82 | static int fio_client_connect(struct fio_client *client) | |
83 | { | |
84 | int fd; | |
132159a5 | 85 | |
b66570dc JA |
86 | memset(&client->addr, 0, sizeof(client->addr)); |
87 | client->addr.sin_family = AF_INET; | |
88 | client->addr.sin_port = htons(fio_net_port); | |
89 | ||
a37f69b7 | 90 | if (inet_aton(client->hostname, &client->addr.sin_addr) != 1) { |
132159a5 JA |
91 | struct hostent *hent; |
92 | ||
a37f69b7 | 93 | hent = gethostbyname(client->hostname); |
132159a5 JA |
94 | if (!hent) { |
95 | log_err("fio: gethostbyname: %s\n", strerror(errno)); | |
96 | return 1; | |
97 | } | |
98 | ||
b66570dc | 99 | memcpy(&client->addr.sin_addr, hent->h_addr, 4); |
132159a5 JA |
100 | } |
101 | ||
102 | fd = socket(AF_INET, SOCK_STREAM, 0); | |
103 | if (fd < 0) { | |
104 | log_err("fio: socket: %s\n", strerror(errno)); | |
b66570dc | 105 | free(client); |
132159a5 JA |
106 | return 1; |
107 | } | |
108 | ||
b66570dc | 109 | if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) { |
132159a5 | 110 | log_err("fio: connect: %s\n", strerror(errno)); |
b66570dc | 111 | free(client); |
132159a5 JA |
112 | return 1; |
113 | } | |
114 | ||
b66570dc | 115 | client->fd = fd; |
132159a5 JA |
116 | return 0; |
117 | } | |
118 | ||
a37f69b7 JA |
119 | int fio_clients_connect(void) |
120 | { | |
121 | struct fio_client *client; | |
122 | struct flist_head *entry, *tmp; | |
123 | int ret; | |
124 | ||
125 | flist_for_each_safe(entry, tmp, &client_list) { | |
126 | client = flist_entry(entry, struct fio_client, list); | |
127 | ||
128 | ret = fio_client_connect(client); | |
129 | if (ret) | |
130 | remove_client(client); | |
131 | } | |
132 | ||
133 | return !nr_clients; | |
134 | } | |
135 | ||
b66570dc | 136 | static int send_file_buf(struct fio_client *client, char *buf, off_t size) |
132159a5 | 137 | { |
b66570dc | 138 | return fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, size); |
132159a5 JA |
139 | } |
140 | ||
141 | /* | |
142 | * Send file contents to server backend. We could use sendfile(), but to remain | |
143 | * more portable lets just read/write the darn thing. | |
144 | */ | |
a37f69b7 | 145 | static int fio_client_send_ini(struct fio_client *client, const char *filename) |
132159a5 JA |
146 | { |
147 | struct stat sb; | |
148 | char *p, *buf; | |
149 | off_t len; | |
150 | int fd, ret; | |
151 | ||
152 | fd = open(filename, O_RDONLY); | |
153 | if (fd < 0) { | |
154 | log_err("fio: job file open: %s\n", strerror(errno)); | |
155 | return 1; | |
156 | } | |
157 | ||
158 | if (fstat(fd, &sb) < 0) { | |
159 | log_err("fio: job file stat: %s\n", strerror(errno)); | |
160 | return 1; | |
161 | } | |
162 | ||
163 | buf = malloc(sb.st_size); | |
164 | ||
165 | len = sb.st_size; | |
166 | p = buf; | |
167 | do { | |
168 | ret = read(fd, p, len); | |
169 | if (ret > 0) { | |
170 | len -= ret; | |
171 | if (!len) | |
172 | break; | |
173 | p += ret; | |
174 | continue; | |
175 | } else if (!ret) | |
176 | break; | |
177 | else if (errno == EAGAIN || errno == EINTR) | |
178 | continue; | |
179 | } while (1); | |
180 | ||
b66570dc | 181 | ret = send_file_buf(client, buf, sb.st_size); |
132159a5 JA |
182 | free(buf); |
183 | return ret; | |
184 | } | |
37db14fe | 185 | |
a37f69b7 JA |
186 | int fio_clients_send_ini(const char *filename) |
187 | { | |
188 | struct fio_client *client; | |
189 | struct flist_head *entry, *tmp; | |
190 | ||
191 | flist_for_each_safe(entry, tmp, &client_list) { | |
192 | client = flist_entry(entry, struct fio_client, list); | |
193 | ||
194 | if (fio_client_send_ini(client, filename)) | |
195 | remove_client(client); | |
196 | } | |
197 | ||
198 | return !nr_clients; | |
199 | } | |
200 | ||
b66570dc | 201 | static int handle_client(struct fio_client *client) |
37db14fe JA |
202 | { |
203 | struct fio_net_cmd *cmd; | |
204 | ||
b66570dc | 205 | while ((cmd = fio_net_cmd_read(client->fd)) != NULL) { |
37db14fe JA |
206 | if (cmd->opcode == FIO_NET_CMD_ACK) { |
207 | free(cmd); | |
208 | continue; | |
209 | } | |
437377e1 | 210 | if (cmd->opcode == FIO_NET_CMD_QUIT) { |
b66570dc | 211 | remove_client(client); |
437377e1 JA |
212 | free(cmd); |
213 | break; | |
214 | } | |
37db14fe JA |
215 | if (cmd->opcode != FIO_NET_CMD_TEXT) { |
216 | printf("non text: %d\n", cmd->opcode); | |
217 | free(cmd); | |
218 | continue; | |
219 | } | |
49d14c0f | 220 | fwrite(cmd->payload, cmd->pdu_len, 1, stdout); |
37db14fe JA |
221 | fflush(stdout); |
222 | free(cmd); | |
223 | } | |
224 | ||
225 | return 0; | |
226 | } | |
b66570dc JA |
227 | |
228 | int fio_handle_clients(void) | |
229 | { | |
230 | struct fio_client *client; | |
231 | struct flist_head *entry; | |
232 | struct pollfd *pfds; | |
82a4be1b | 233 | int i, ret = 0; |
b66570dc JA |
234 | |
235 | pfds = malloc(nr_clients * sizeof(struct pollfd)); | |
236 | ||
82a4be1b JA |
237 | while (!exit_backend && nr_clients) { |
238 | i = 0; | |
239 | flist_for_each(entry, &client_list) { | |
240 | client = flist_entry(entry, struct fio_client, list); | |
b66570dc | 241 | |
82a4be1b JA |
242 | pfds[i].fd = client->fd; |
243 | pfds[i].events = POLLIN; | |
244 | i++; | |
245 | } | |
246 | ||
247 | assert(i == nr_clients); | |
b66570dc | 248 | |
b66570dc JA |
249 | ret = poll(pfds, nr_clients, 100); |
250 | if (ret < 0) { | |
251 | if (errno == EINTR) | |
252 | continue; | |
253 | log_err("fio: poll clients: %s\n", strerror(errno)); | |
254 | break; | |
255 | } else if (!ret) | |
256 | continue; | |
257 | ||
258 | for (i = 0; i < nr_clients; i++) { | |
259 | if (!(pfds[i].revents & POLLIN)) | |
260 | continue; | |
261 | ||
262 | client = find_client_by_fd(pfds[i].fd); | |
263 | if (!client) { | |
264 | log_err("fio: unknown client\n"); | |
265 | continue; | |
266 | } | |
267 | handle_client(client); | |
268 | } | |
269 | } | |
270 | ||
271 | free(pfds); | |
272 | ||
273 | return 0; | |
274 | } |