1 /* 2 * Copyright (c) 2002-2007 Niels Provos <provos@citi.umich.edu> 3 * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 #include "../util-internal.h" 28 #include "event2/event-config.h" 29 30 #ifdef _WIN32 31 #include <winsock2.h> 32 #else 33 #include <unistd.h> 34 #endif 35 #include <sys/types.h> 36 #include <sys/stat.h> 37 #ifdef EVENT__HAVE_SYS_TIME_H 38 #include <sys/time.h> 39 #endif 40 #ifdef EVENT__HAVE_SYS_SOCKET_H 41 #include <sys/socket.h> 42 #endif 43 #include <fcntl.h> 44 #include <stdlib.h> 45 #include <stdio.h> 46 #include <string.h> 47 #include <signal.h> 48 #include <errno.h> 49 50 #include "event2/event.h" 51 #include "event2/event_struct.h" 52 #include "event2/event_compat.h" 53 #include "event2/util.h" 54 55 evutil_socket_t pair[2]; 56 int test_okay = 1; 57 int called = 0; 58 59 static void 60 write_cb(evutil_socket_t fd, short event, void *arg) 61 { 62 const char *test = "test string"; 63 int len; 64 65 len = send(fd, test, (int)strlen(test) + 1, 0); 66 67 printf("%s: write %d%s\n", __func__, 68 len, len ? "" : " - means EOF"); 69 70 if (len > 0) { 71 if (!called) 72 event_add(arg, NULL); 73 evutil_closesocket(pair[0]); 74 } else if (called == 1) 75 test_okay = 0; 76 77 called++; 78 } 79 80 int 81 main(int argc, char **argv) 82 { 83 struct event ev; 84 85 #ifdef _WIN32 86 WORD wVersionRequested; 87 WSADATA wsaData; 88 89 wVersionRequested = MAKEWORD(2, 2); 90 91 (void) WSAStartup(wVersionRequested, &wsaData); 92 #endif 93 94 #ifndef _WIN32 95 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) 96 return (1); 97 #endif 98 99 if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == -1) 100 return (1); 101 102 /* Initialize the event library */ 103 event_init(); 104 105 /* Initialize one event */ 106 event_set(&ev, pair[1], EV_WRITE, write_cb, &ev); 107 108 event_add(&ev, NULL); 109 110 event_dispatch(); 111 112 return (test_okay); 113 } 114 115