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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); | |
29 | static unsigned int nr_clients; | |
30 | ||
31 | static struct fio_client *find_client_by_fd(int fd) | |
32 | { | |
33 | struct fio_client *client; | |
34 | struct flist_head *entry; | |
35 | ||
36 | flist_for_each(entry, &client_list) { | |
37 | client = flist_entry(entry, struct fio_client, list); | |
38 | ||
39 | if (client->fd == fd) | |
40 | return client; | |
41 | } | |
42 | ||
43 | return NULL; | |
44 | } | |
45 | ||
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 | } | |
60 | ||
61 | static void remove_client(struct fio_client *client) | |
62 | { | |
63 | printf("remove client %s\n", client->hostname); | |
64 | flist_del(&client->list); | |
65 | nr_clients--; | |
66 | free(client->hostname); | |
67 | free(client); | |
68 | } | |
132159a5 JA |
69 | |
70 | int fio_client_connect(const char *host) | |
71 | { | |
b66570dc | 72 | struct fio_client *client; |
132159a5 JA |
73 | int fd; |
74 | ||
b66570dc | 75 | client = malloc(sizeof(*client)); |
132159a5 | 76 | |
b66570dc JA |
77 | memset(&client->addr, 0, sizeof(client->addr)); |
78 | client->addr.sin_family = AF_INET; | |
79 | client->addr.sin_port = htons(fio_net_port); | |
80 | ||
81 | if (inet_aton(host, &client->addr.sin_addr) != 1) { | |
132159a5 JA |
82 | struct hostent *hent; |
83 | ||
84 | hent = gethostbyname(host); | |
85 | if (!hent) { | |
86 | log_err("fio: gethostbyname: %s\n", strerror(errno)); | |
87 | return 1; | |
88 | } | |
89 | ||
b66570dc | 90 | memcpy(&client->addr.sin_addr, hent->h_addr, 4); |
132159a5 JA |
91 | } |
92 | ||
93 | fd = socket(AF_INET, SOCK_STREAM, 0); | |
94 | if (fd < 0) { | |
95 | log_err("fio: socket: %s\n", strerror(errno)); | |
b66570dc | 96 | free(client); |
132159a5 JA |
97 | return 1; |
98 | } | |
99 | ||
b66570dc | 100 | if (connect(fd, (struct sockaddr *) &client->addr, sizeof(client->addr)) < 0) { |
132159a5 | 101 | log_err("fio: connect: %s\n", strerror(errno)); |
b66570dc | 102 | free(client); |
132159a5 JA |
103 | return 1; |
104 | } | |
105 | ||
b66570dc JA |
106 | client->hostname = strdup(host); |
107 | flist_add(&client->list, &client_list); | |
108 | nr_clients++; | |
109 | client->fd = fd; | |
132159a5 JA |
110 | return 0; |
111 | } | |
112 | ||
b66570dc | 113 | static int send_file_buf(struct fio_client *client, char *buf, off_t size) |
132159a5 | 114 | { |
b66570dc | 115 | return fio_net_send_cmd(client->fd, FIO_NET_CMD_JOB, buf, size); |
132159a5 JA |
116 | } |
117 | ||
118 | /* | |
119 | * Send file contents to server backend. We could use sendfile(), but to remain | |
120 | * more portable lets just read/write the darn thing. | |
121 | */ | |
b66570dc | 122 | int fio_client_send_ini(const char *hostname, const char *filename) |
132159a5 | 123 | { |
b66570dc | 124 | struct fio_client *client; |
132159a5 JA |
125 | struct stat sb; |
126 | char *p, *buf; | |
127 | off_t len; | |
128 | int fd, ret; | |
129 | ||
b66570dc JA |
130 | client = find_client_by_name(hostname); |
131 | if (!client) { | |
132 | log_err("fio: can't find client for host %s\n", hostname); | |
133 | return 1; | |
134 | } | |
135 | ||
132159a5 JA |
136 | fd = open(filename, O_RDONLY); |
137 | if (fd < 0) { | |
138 | log_err("fio: job file open: %s\n", strerror(errno)); | |
139 | return 1; | |
140 | } | |
141 | ||
142 | if (fstat(fd, &sb) < 0) { | |
143 | log_err("fio: job file stat: %s\n", strerror(errno)); | |
144 | return 1; | |
145 | } | |
146 | ||
147 | buf = malloc(sb.st_size); | |
148 | ||
149 | len = sb.st_size; | |
150 | p = buf; | |
151 | do { | |
152 | ret = read(fd, p, len); | |
153 | if (ret > 0) { | |
154 | len -= ret; | |
155 | if (!len) | |
156 | break; | |
157 | p += ret; | |
158 | continue; | |
159 | } else if (!ret) | |
160 | break; | |
161 | else if (errno == EAGAIN || errno == EINTR) | |
162 | continue; | |
163 | } while (1); | |
164 | ||
b66570dc | 165 | ret = send_file_buf(client, buf, sb.st_size); |
132159a5 JA |
166 | free(buf); |
167 | return ret; | |
168 | } | |
37db14fe | 169 | |
b66570dc | 170 | static int handle_client(struct fio_client *client) |
37db14fe JA |
171 | { |
172 | struct fio_net_cmd *cmd; | |
173 | ||
b66570dc | 174 | while ((cmd = fio_net_cmd_read(client->fd)) != NULL) { |
37db14fe JA |
175 | if (cmd->opcode == FIO_NET_CMD_ACK) { |
176 | free(cmd); | |
177 | continue; | |
178 | } | |
437377e1 | 179 | if (cmd->opcode == FIO_NET_CMD_QUIT) { |
b66570dc | 180 | remove_client(client); |
437377e1 JA |
181 | free(cmd); |
182 | break; | |
183 | } | |
37db14fe JA |
184 | if (cmd->opcode != FIO_NET_CMD_TEXT) { |
185 | printf("non text: %d\n", cmd->opcode); | |
186 | free(cmd); | |
187 | continue; | |
188 | } | |
49d14c0f | 189 | fwrite(cmd->payload, cmd->pdu_len, 1, stdout); |
37db14fe JA |
190 | fflush(stdout); |
191 | free(cmd); | |
192 | } | |
193 | ||
194 | return 0; | |
195 | } | |
b66570dc JA |
196 | |
197 | int fio_handle_clients(void) | |
198 | { | |
199 | struct fio_client *client; | |
200 | struct flist_head *entry; | |
201 | struct pollfd *pfds; | |
202 | int i = 0, ret = 0; | |
203 | ||
204 | pfds = malloc(nr_clients * sizeof(struct pollfd)); | |
205 | ||
206 | flist_for_each(entry, &client_list) { | |
207 | client = flist_entry(entry, struct fio_client, list); | |
208 | ||
209 | pfds[i].fd = client->fd; | |
210 | pfds[i].events = POLLIN; | |
211 | i++; | |
212 | } | |
213 | ||
214 | while (!exit_backend && nr_clients) { | |
215 | ret = poll(pfds, nr_clients, 100); | |
216 | if (ret < 0) { | |
217 | if (errno == EINTR) | |
218 | continue; | |
219 | log_err("fio: poll clients: %s\n", strerror(errno)); | |
220 | break; | |
221 | } else if (!ret) | |
222 | continue; | |
223 | ||
224 | for (i = 0; i < nr_clients; i++) { | |
225 | if (!(pfds[i].revents & POLLIN)) | |
226 | continue; | |
227 | ||
228 | client = find_client_by_fd(pfds[i].fd); | |
229 | if (!client) { | |
230 | log_err("fio: unknown client\n"); | |
231 | continue; | |
232 | } | |
233 | handle_client(client); | |
234 | } | |
235 | } | |
236 | ||
237 | free(pfds); | |
238 | ||
239 | return 0; | |
240 | } |