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liburing
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test/eventfd-reg.c
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Guillem Jover
Fix typos
10 ноя 2023, 03:49
10 ноя 2023, 03:49
2c89b57
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/* SPDX-License-Identifier: MIT */ /* * Description: test eventfd registration+unregistration * */ #include <errno.h> #include <stdio.h> #include <unistd.h> #include <stdlib.h> #include <string.h> #include <fcntl.h> #include <poll.h> #include <sys/eventfd.h> #include "liburing.h" #include "helpers.h" int main(int argc, char *argv[]) { struct io_uring_params p = {}; struct io_uring ring; int ret, evfd[2], i; if (argc > 1) return T_EXIT_SKIP; ret = io_uring_queue_init_params(8, &ring, &p); if (ret) { fprintf(stderr, "ring setup failed: %d\n", ret); return T_EXIT_FAIL; } evfd[0] = eventfd(0, EFD_CLOEXEC); evfd[1] = eventfd(0, EFD_CLOEXEC); if (evfd[0] < 0 || evfd[1] < 0) { perror("eventfd"); return T_EXIT_FAIL; } ret = io_uring_register_eventfd(&ring, evfd[0]); if (ret) { fprintf(stderr, "failed to register evfd: %d\n", ret); return T_EXIT_FAIL; } /* Check that registering again will get -EBUSY */ ret = io_uring_register_eventfd(&ring, evfd[1]); if (ret != -EBUSY) { fprintf(stderr, "unexpected 2nd register: %d\n", ret); return T_EXIT_FAIL; } close(evfd[1]); ret = io_uring_unregister_eventfd(&ring); if (ret) { fprintf(stderr, "unexpected unregister: %d\n", ret); return T_EXIT_FAIL; } /* loop 100 registers/unregister */ for (i = 0; i < 100; i++) { ret = io_uring_register_eventfd(&ring, evfd[0]); if (ret) { fprintf(stderr, "failed to register evfd: %d\n", ret); return T_EXIT_FAIL; } ret = io_uring_unregister_eventfd(&ring); if (ret) { fprintf(stderr, "unexpected unregister: %d\n", ret); return T_EXIT_FAIL; } } close(evfd[0]); return T_EXIT_PASS; }