| 149 | } |
| 150 | |
| 151 | static void submit_io(struct io_uring *ring, unsigned nr) |
| 152 | { |
| 153 | int fd, ret; |
| 154 | off_t file_len; |
| 155 | unsigned i; |
| 156 | static char template[32] = "/tmp/io_uring_enter-test.XXXXXX"; |
| 157 | struct io_uring_sqe *sqe; |
| 158 | |
| 159 | file_len = nr * 4096; |
| 160 | fd = setup_file(template, file_len); |
| 161 | for (i = 0; i < nr; i++) { |
| 162 | /* allocate an sqe */ |
| 163 | sqe = io_uring_get_sqe(ring); |
| 164 | /* fill it in */ |
| 165 | io_prep_read(sqe, fd, i * 4096, 4096); |
| 166 | } |
| 167 | |
| 168 | /* submit the I/Os */ |
| 169 | ret = io_uring_submit(ring); |
| 170 | unlink(template); |
| 171 | if (ret < 0) { |
| 172 | fprintf(stderr, "io_uring_queue_enter: %s\n", strerror(-ret)); |
| 173 | exit(1); |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | int main(int argc, char **argv) |
| 178 | { |
no test coverage detected