Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | #include <stdlib.h> #include <stdio.h> #include <string.h> #include <err.h> #include <errno.h> #include <pthread.h> #include <fcntl.h> #include <poll.h> #include <sys/socket.h> #include <darwintest.h> T_GLOBAL_META( T_META_NAMESPACE("xnu.net"), T_META_RADAR_COMPONENT_NAME("xnu"), T_META_RADAR_COMPONENT_VERSION("networking"), T_META_OWNER("rpaulo") ); /* * Tests that a full UNIX domain socket buffer * always reports the right poll() event. */ static const int MSG1_LEN = 16384; static void do_recv(int sk, char *buf, size_t size) { do{ struct iovec iov[1]; struct msghdr msg; struct pollfd pfd[1] = { { sk, POLLIN, 0 } }; T_QUIET; T_ASSERT_POSIX_SUCCESS(poll(pfd, 1, -1), "poll"); memset(&msg, 0, sizeof(msg)); iov->iov_base = buf; iov->iov_len = size; msg.msg_iov = iov; msg.msg_iovlen = 1; ssize_t res = recvmsg(sk, &msg, 0); T_QUIET; T_ASSERT_POSIX_SUCCESS(res, "recvmsg"); buf += res; size -= (size_t)res; } while (size); } static void * receiver(void *arg) { int sk = (int)arg; char *buf = malloc(MSG1_LEN); for (;;) { do_recv(sk, buf, MSG1_LEN); } } static void do_send(int sk, char *buf, size_t size) { do{ struct iovec iov[1]; struct msghdr msg; struct pollfd pfd[1] = { { sk, POLLOUT, 0 } }; int res = poll(pfd, 1, -1); T_QUIET; T_ASSERT_POSIX_SUCCESS(res, "poll"); if (res == 0) { continue; } if (!(pfd[0].revents & POLLOUT)) { T_FAIL("POLLOUT not set"); } memset(&msg, 0, sizeof(msg)); iov->iov_base = buf; iov->iov_len = size; msg.msg_iov = iov; msg.msg_iovlen = 1; ssize_t res_sendmsg = sendmsg(sk, &msg, 0); T_QUIET; T_ASSERT_POSIX_SUCCESS(res_sendmsg, "sendmsg"); buf += res_sendmsg; size -= (size_t)res_sendmsg; } while (size); } static void cfg_sk(int sk) { int newSndBufSz = MSG1_LEN * 2; socklen_t optLen = sizeof(newSndBufSz); T_ASSERT_POSIX_SUCCESS(setsockopt(sk, SOL_SOCKET, SO_SNDBUF, &newSndBufSz, optLen), "setsockopt"); newSndBufSz = MSG1_LEN * 2; optLen = sizeof(newSndBufSz); T_ASSERT_POSIX_SUCCESS(setsockopt(sk, SOL_SOCKET, SO_RCVBUF, &newSndBufSz, optLen), "setsockopt"); int flags = fcntl(sk, F_GETFL, 0); T_ASSERT_POSIX_SUCCESS(flags, "fcntl"); T_ASSERT_POSIX_SUCCESS(fcntl(sk, F_SETFL, flags | O_NONBLOCK), "fcntl"); } T_DECL(uipc_sosendcheck, "Tests the UNIX Domain poll filter", T_META_CHECK_LEAKS(false), T_META_TAG_VM_PREFERRED) { int s[2]; T_ASSERT_POSIX_SUCCESS(socketpair(AF_UNIX, SOCK_STREAM, 0, s), "socketpair"); cfg_sk(s[0]); cfg_sk(s[1]); char *buf = malloc(MSG1_LEN); pthread_t receiver_th; if (pthread_create(&receiver_th, 0, receiver, (void *)(uintptr_t)s[1])) { T_FAIL("pthread_create failed"); } for (unsigned int i = 0; i < 90000; i++) { do_send(s[0], buf, 5); do_send(s[0], buf, MSG1_LEN); } } |