Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 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 | |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame^] | 24 | int exit_backend = 0; |
| 25 | |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 26 | static int accept_loop(int listen_sk) |
| 27 | { |
| 28 | struct sockaddr addr; |
| 29 | unsigned int len = sizeof(addr); |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame^] | 30 | struct pollfd pfd; |
| 31 | int ret, sk, flags; |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 32 | |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame^] | 33 | flags = fcntl(listen_sk, F_GETFL); |
| 34 | flags |= O_NONBLOCK; |
| 35 | fcntl(listen_sk, F_SETFL, flags); |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 36 | again: |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame^] | 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 | |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 56 | sk = accept(listen_sk, &addr, &len); |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 57 | if (sk < 0) { |
| 58 | log_err("fio: accept failed\n"); |
| 59 | return -1; |
| 60 | } |
| 61 | |
| 62 | /* read forever */ |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame^] | 63 | while (!exit_backend) { |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 64 | char buf[131072]; |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 65 | |
| 66 | ret = recv(sk, buf, 4096, 0); |
| 67 | if (ret > 0) { |
Jens Axboe | 5c341e9 | 2011-09-29 18:00:35 -0600 | [diff] [blame] | 68 | if (!strncmp("FIO_QUIT", buf, 8)) { |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame^] | 69 | exit_backend = 1; |
Jens Axboe | 5c341e9 | 2011-09-29 18:00:35 -0600 | [diff] [blame] | 70 | break; |
| 71 | } |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 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); |
Jens Axboe | 5c341e9 | 2011-09-29 18:00:35 -0600 | [diff] [blame] | 84 | |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame^] | 85 | if (!exit_backend) |
Jens Axboe | 5c341e9 | 2011-09-29 18:00:35 -0600 | [diff] [blame] | 86 | goto again; |
| 87 | |
Jens Axboe | 009b1be | 2011-09-29 18:27:02 -0600 | [diff] [blame^] | 88 | out: |
Jens Axboe | 5c341e9 | 2011-09-29 18:00:35 -0600 | [diff] [blame] | 89 | return 0; |
Jens Axboe | 50d1697 | 2011-09-29 17:45:28 -0600 | [diff] [blame] | 90 | } |
| 91 | |
| 92 | int fio_server(void) |
| 93 | { |
| 94 | struct sockaddr_in saddr_in; |
| 95 | struct sockaddr addr; |
| 96 | unsigned int len; |
| 97 | int sk, opt; |
| 98 | |
| 99 | sk = socket(AF_INET, SOCK_STREAM, 0); |
| 100 | if (sk < 0) { |
| 101 | log_err("fio: socket\n"); |
| 102 | return -1; |
| 103 | } |
| 104 | |
| 105 | opt = 1; |
| 106 | if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) { |
| 107 | log_err("fio: setsockopt\n"); |
| 108 | return -1; |
| 109 | } |
| 110 | #ifdef SO_REUSEPORT |
| 111 | if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)) < 0) { |
| 112 | td_verror(td, errno, "setsockopt"); |
| 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) { |
| 122 | perror("bind"); |
| 123 | log_err("fio: bind\n"); |
| 124 | return -1; |
| 125 | } |
| 126 | |
| 127 | if (listen(sk, 1) < 0) { |
| 128 | log_err("fio: listen\n"); |
| 129 | return -1; |
| 130 | } |
| 131 | |
| 132 | len = sizeof(addr); |
| 133 | if (getsockname(sk, &addr, &len) < 0) { |
| 134 | log_err("fio: getsockname"); |
| 135 | return -1; |
| 136 | } |
| 137 | |
| 138 | return accept_loop(sk); |
| 139 | } |