Commit | Line | Data |
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50d16976 JA |
1 | #include <stdio.h> |
2 | #include <stdlib.h> | |
3 | #include <unistd.h> | |
4 | #include <limits.h> | |
5 | #include <string.h> | |
6 | #include <getopt.h> | |
7 | #include <errno.h> | |
8 | #include <fcntl.h> | |
9 | #include <sys/poll.h> | |
10 | #include <sys/stat.h> | |
11 | #include <sys/types.h> | |
12 | #include <sys/wait.h> | |
13 | #include <sys/time.h> | |
14 | #include <sys/mman.h> | |
15 | #include <signal.h> | |
16 | #include <netinet/in.h> | |
17 | #include <arpa/inet.h> | |
18 | #include <netdb.h> | |
19 | ||
20 | #include "fio.h" | |
21 | ||
22 | static int net_port = 8765; | |
23 | ||
009b1be4 JA |
24 | int exit_backend = 0; |
25 | ||
50d16976 JA |
26 | static int accept_loop(int listen_sk) |
27 | { | |
28 | struct sockaddr addr; | |
29 | unsigned int len = sizeof(addr); | |
009b1be4 JA |
30 | struct pollfd pfd; |
31 | int ret, sk, flags; | |
50d16976 | 32 | |
009b1be4 JA |
33 | flags = fcntl(listen_sk, F_GETFL); |
34 | flags |= O_NONBLOCK; | |
35 | fcntl(listen_sk, F_SETFL, flags); | |
50d16976 | 36 | again: |
009b1be4 JA |
37 | pfd.fd = listen_sk; |
38 | pfd.events = POLLIN; | |
39 | do { | |
40 | ret = poll(&pfd, 1, 100); | |
41 | if (ret < 0) { | |
42 | if (errno == EINTR) | |
43 | break; | |
44 | perror("poll"); | |
45 | goto out; | |
46 | } else if (!ret) | |
47 | continue; | |
48 | ||
49 | if (pfd.revents & POLLIN) | |
50 | break; | |
51 | } while (!exit_backend); | |
52 | ||
53 | if (exit_backend) | |
54 | goto out; | |
55 | ||
50d16976 | 56 | sk = accept(listen_sk, &addr, &len); |
50d16976 | 57 | if (sk < 0) { |
690e09ae | 58 | log_err("fio: accept: %s\n", strerror(errno)); |
50d16976 JA |
59 | return -1; |
60 | } | |
61 | ||
62 | /* read forever */ | |
009b1be4 | 63 | while (!exit_backend) { |
50d16976 | 64 | char buf[131072]; |
50d16976 JA |
65 | |
66 | ret = recv(sk, buf, 4096, 0); | |
67 | if (ret > 0) { | |
5c341e9a | 68 | if (!strncmp("FIO_QUIT", buf, 8)) { |
009b1be4 | 69 | exit_backend = 1; |
5c341e9a JA |
70 | break; |
71 | } | |
50d16976 JA |
72 | parse_jobs_ini(buf, 1, 0); |
73 | exec_run(); | |
74 | reset_fio_state(); | |
75 | break; | |
76 | } else if (!ret) | |
77 | break; | |
78 | if (errno == EAGAIN || errno == EINTR) | |
79 | continue; | |
80 | break; | |
81 | } | |
82 | ||
83 | close(sk); | |
5c341e9a | 84 | |
009b1be4 | 85 | if (!exit_backend) |
5c341e9a JA |
86 | goto again; |
87 | ||
009b1be4 | 88 | out: |
5c341e9a | 89 | return 0; |
50d16976 JA |
90 | } |
91 | ||
92 | int fio_server(void) | |
93 | { | |
94 | struct sockaddr_in saddr_in; | |
95 | struct sockaddr addr; | |
96 | unsigned int len; | |
afcf7758 | 97 | int sk, opt, ret; |
50d16976 JA |
98 | |
99 | sk = socket(AF_INET, SOCK_STREAM, 0); | |
100 | if (sk < 0) { | |
690e09ae | 101 | log_err("fio: socket: %s\n", strerror(errno)); |
50d16976 JA |
102 | return -1; |
103 | } | |
104 | ||
105 | opt = 1; | |
106 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { | |
690e09ae | 107 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
50d16976 JA |
108 | return -1; |
109 | } | |
110 | #ifdef SO_REUSEPORT | |
111 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { | |
690e09ae | 112 | log_err("fio: setsockopt: %s\n", strerror(errno)); |
50d16976 JA |
113 | return 1; |
114 | } | |
115 | #endif | |
116 | ||
117 | saddr_in.sin_family = AF_INET; | |
118 | saddr_in.sin_addr.s_addr = htonl(INADDR_ANY); | |
119 | saddr_in.sin_port = htons(net_port); | |
120 | ||
121 | if (bind(sk, (struct sockaddr *) &saddr_in, sizeof(saddr_in)) < 0) { | |
690e09ae | 122 | log_err("fio: bind: %s\n", strerror(errno)); |
50d16976 JA |
123 | return -1; |
124 | } | |
125 | ||
126 | if (listen(sk, 1) < 0) { | |
690e09ae | 127 | log_err("fio: listen: %s\n", strerror(errno)); |
50d16976 JA |
128 | return -1; |
129 | } | |
130 | ||
131 | len = sizeof(addr); | |
132 | if (getsockname(sk, &addr, &len) < 0) { | |
690e09ae | 133 | log_err("fio: getsockname: %s\n", strerror(errno)); |
50d16976 JA |
134 | return -1; |
135 | } | |
136 | ||
afcf7758 JA |
137 | ret = accept_loop(sk); |
138 | close(sk); | |
139 | return ret; | |
50d16976 | 140 | } |