| 108 | } |
| 109 | |
| 110 | static int copy_file(struct io_uring *ring, off_t insize) |
| 111 | { |
| 112 | struct io_uring_cqe *cqe; |
| 113 | off_t this_size; |
| 114 | off_t offset; |
| 115 | |
| 116 | offset = 0; |
| 117 | while (insize) { |
| 118 | int has_inflight = inflight; |
| 119 | int depth; |
| 120 | |
| 121 | while (insize && inflight < QD) { |
| 122 | this_size = BS; |
| 123 | if (this_size > insize) |
| 124 | this_size = insize; |
| 125 | queue_rw_pair(ring, this_size, offset); |
| 126 | offset += this_size; |
| 127 | insize -= this_size; |
| 128 | inflight += 2; |
| 129 | } |
| 130 | |
| 131 | if (has_inflight != inflight) |
| 132 | io_uring_submit(ring); |
| 133 | |
| 134 | if (insize) |
| 135 | depth = QD; |
| 136 | else |
| 137 | depth = 1; |
| 138 | while (inflight >= depth) { |
| 139 | int ret; |
| 140 | |
| 141 | ret = io_uring_wait_cqe(ring, &cqe); |
| 142 | if (ret < 0) { |
| 143 | printf("wait cqe: %s\n", strerror(-ret)); |
| 144 | return 1; |
| 145 | } |
| 146 | if (handle_cqe(ring, cqe)) |
| 147 | return 1; |
| 148 | inflight--; |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | return 0; |
| 153 | } |
| 154 | |
| 155 | int main(int argc, char *argv[]) |
| 156 | { |
no test coverage detected