Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 1 | #include <errno.h> |
| 2 | #include <stdio.h> |
| 3 | #include <unistd.h> |
| 4 | #include <stdlib.h> |
| 5 | #include <string.h> |
| 6 | #include <fcntl.h> |
| 7 | #include <assert.h> |
| 8 | #include <pthread.h> |
| 9 | #include <sys/socket.h> |
| 10 | #include <netinet/tcp.h> |
| 11 | #include <netinet/in.h> |
| 12 | #include <poll.h> |
| 13 | |
Jens Axboe | a8f8536 | 2019-11-12 12:30:38 -0700 | [diff] [blame^] | 14 | #include "liburing.h" |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 15 | |
| 16 | pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; |
| 17 | pthread_cond_t cond = PTHREAD_COND_INITIALIZER; |
| 18 | |
| 19 | static int recv_thread_ready = 0; |
| 20 | static int recv_thread_done = 0; |
| 21 | |
| 22 | static void signal_var(int *var) |
| 23 | { |
| 24 | pthread_mutex_lock(&mutex); |
| 25 | *var = 1; |
| 26 | pthread_cond_signal(&cond); |
| 27 | pthread_mutex_unlock(&mutex); |
| 28 | } |
| 29 | |
| 30 | static void wait_for_var(int *var) |
| 31 | { |
| 32 | pthread_mutex_lock(&mutex); |
| 33 | |
| 34 | while (!*var) |
| 35 | pthread_cond_wait(&cond, &mutex); |
| 36 | |
| 37 | pthread_mutex_unlock(&mutex); |
| 38 | } |
| 39 | |
Jens Axboe | 4bce856 | 2019-11-11 16:00:58 -0700 | [diff] [blame] | 40 | struct data { |
| 41 | unsigned expected[2]; |
| 42 | unsigned just_positive[2]; |
| 43 | unsigned long timeout; |
| 44 | int port; |
| 45 | int stop; |
| 46 | }; |
| 47 | |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 48 | static void *send_thread(void *arg) |
| 49 | { |
Jens Axboe | 4bce856 | 2019-11-11 16:00:58 -0700 | [diff] [blame] | 50 | struct data *data = arg; |
| 51 | |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 52 | wait_for_var(&recv_thread_ready); |
| 53 | |
Jens Axboe | 4bce856 | 2019-11-11 16:00:58 -0700 | [diff] [blame] | 54 | if (data->stop) |
| 55 | return NULL; |
| 56 | |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 57 | int s0 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); |
| 58 | assert(s0 != -1); |
| 59 | |
| 60 | struct sockaddr_in addr; |
| 61 | |
Jens Axboe | 4bce856 | 2019-11-11 16:00:58 -0700 | [diff] [blame] | 62 | addr.sin_family = AF_INET; |
| 63 | addr.sin_port = data->port; |
| 64 | addr.sin_addr.s_addr = 0x0100007fU; |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 65 | |
| 66 | assert(connect(s0, (struct sockaddr*)&addr, sizeof(addr)) != -1); |
| 67 | |
| 68 | wait_for_var(&recv_thread_done); |
| 69 | |
| 70 | close(s0); |
Jens Axboe | 4bce856 | 2019-11-11 16:00:58 -0700 | [diff] [blame] | 71 | return NULL; |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 72 | } |
| 73 | |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 74 | void *recv_thread(void *arg) |
| 75 | { |
| 76 | struct data *data = arg; |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 77 | struct io_uring ring; |
Jens Axboe | 4bce856 | 2019-11-11 16:00:58 -0700 | [diff] [blame] | 78 | int i; |
| 79 | |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 80 | assert(io_uring_queue_init(8, &ring, 0) == 0); |
| 81 | |
| 82 | int s0 = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); |
| 83 | assert(s0 != -1); |
| 84 | |
| 85 | int32_t val = 1; |
| 86 | assert(setsockopt(s0, SOL_SOCKET, SO_REUSEPORT, &val, sizeof(val)) != -1); |
| 87 | assert(setsockopt(s0, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)) != -1); |
| 88 | |
| 89 | struct sockaddr_in addr; |
| 90 | |
| 91 | addr.sin_family = AF_INET; |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 92 | addr.sin_addr.s_addr = 0x0100007fU; |
| 93 | |
Jens Axboe | 4bce856 | 2019-11-11 16:00:58 -0700 | [diff] [blame] | 94 | i = 0; |
| 95 | do { |
| 96 | data->port = 1025 + (rand() % 64510); |
| 97 | addr.sin_port = data->port; |
| 98 | |
| 99 | if (bind(s0, (struct sockaddr*)&addr, sizeof(addr)) != -1) |
| 100 | break; |
| 101 | } while (++i < 100); |
| 102 | |
| 103 | if (i >= 100) { |
| 104 | printf("Can't find good port, skipped\n"); |
| 105 | data->stop = 1; |
| 106 | signal_var(&recv_thread_ready); |
| 107 | goto out; |
| 108 | } |
| 109 | |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 110 | assert(listen(s0, 128) != -1); |
| 111 | |
| 112 | signal_var(&recv_thread_ready); |
| 113 | |
| 114 | struct io_uring_sqe *sqe; |
| 115 | |
| 116 | sqe = io_uring_get_sqe(&ring); |
| 117 | assert(sqe != NULL); |
| 118 | |
| 119 | io_uring_prep_accept(sqe, s0, NULL, NULL, 0); |
| 120 | sqe->flags |= IOSQE_IO_LINK; |
| 121 | sqe->user_data = 1; |
| 122 | |
| 123 | sqe = io_uring_get_sqe(&ring); |
| 124 | assert(sqe != NULL); |
| 125 | |
| 126 | struct __kernel_timespec ts; |
| 127 | ts.tv_sec = data->timeout / 1000000000; |
| 128 | ts.tv_nsec = data->timeout % 1000000000; |
| 129 | io_uring_prep_link_timeout(sqe, &ts, 0); |
| 130 | sqe->user_data = 2; |
| 131 | |
| 132 | assert(io_uring_submit(&ring) == 2); |
| 133 | |
| 134 | for (int i = 0; i < 2; i++) { |
| 135 | struct io_uring_cqe *cqe; |
| 136 | int idx; |
| 137 | |
| 138 | if (io_uring_wait_cqe(&ring, &cqe)) { |
| 139 | fprintf(stderr, "wait cqe failed\n"); |
| 140 | goto err; |
| 141 | } |
| 142 | idx = cqe->user_data - 1; |
| 143 | if (cqe->res != data->expected[idx]) { |
| 144 | if (cqe->res > 0 && data->just_positive[idx]) |
| 145 | goto ok; |
Jens Axboe | 4bce856 | 2019-11-11 16:00:58 -0700 | [diff] [blame] | 146 | fprintf(stderr, "cqe %llu got %d, wanted %d\n", |
| 147 | cqe->user_data, cqe->res, |
| 148 | data->expected[idx]); |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 149 | goto err; |
| 150 | } |
| 151 | ok: |
| 152 | if (cqe->user_data == 1 && cqe->res > 0) |
| 153 | close(cqe->res); |
| 154 | |
| 155 | io_uring_cqe_seen(&ring, cqe); |
| 156 | } |
| 157 | |
| 158 | signal_var(&recv_thread_done); |
| 159 | |
Jens Axboe | 4bce856 | 2019-11-11 16:00:58 -0700 | [diff] [blame] | 160 | out: |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 161 | close(s0); |
| 162 | return NULL; |
| 163 | err: |
| 164 | close(s0); |
| 165 | return (void *) 1; |
| 166 | } |
| 167 | |
| 168 | static int test_accept_timeout(int do_connect, unsigned long timeout) |
| 169 | { |
| 170 | pthread_t t1, t2; |
| 171 | struct data d; |
| 172 | void *tret; |
| 173 | int ret = 0; |
| 174 | |
| 175 | recv_thread_ready = 0; |
| 176 | recv_thread_done = 0; |
| 177 | |
| 178 | d.timeout = timeout; |
| 179 | if (!do_connect) { |
| 180 | d.expected[0] = -EINTR; |
| 181 | d.expected[1] = -EALREADY; |
| 182 | } else { |
| 183 | d.expected[0] = -1U; |
| 184 | d.just_positive[0] = 1; |
| 185 | d.expected[1] = -ECANCELED; |
| 186 | } |
| 187 | |
| 188 | pthread_create(&t1, NULL, recv_thread, &d); |
| 189 | |
| 190 | if (do_connect) |
Jens Axboe | 4bce856 | 2019-11-11 16:00:58 -0700 | [diff] [blame] | 191 | pthread_create(&t2, NULL, send_thread, &d); |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 192 | |
| 193 | pthread_join(t1, &tret); |
| 194 | if (tret) |
| 195 | ret++; |
| 196 | |
| 197 | if (do_connect) { |
| 198 | pthread_join(t2, &tret); |
| 199 | if (tret) |
| 200 | ret++; |
| 201 | } |
| 202 | |
| 203 | return ret; |
| 204 | } |
| 205 | |
| 206 | int main(int argc, char *argv[]) |
| 207 | { |
Jens Axboe | 4bce856 | 2019-11-11 16:00:58 -0700 | [diff] [blame] | 208 | if (test_accept_timeout(0, 200000000)) { |
Jens Axboe | da1ce8c | 2019-11-11 12:51:42 -0700 | [diff] [blame] | 209 | fprintf(stderr, "accept timeout 0 failed\n"); |
| 210 | return 1; |
| 211 | } |
| 212 | |
| 213 | if (test_accept_timeout(1, 1000000000)) { |
| 214 | fprintf(stderr, "accept timeout 0 failed\n"); |
| 215 | return 1; |
| 216 | } |
| 217 | |
| 218 | return 0; |
| 219 | } |