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 "event2/event-config.h" 28 29#ifdef WIN32 30#include <winsock2.h> 31#else 32#include <unistd.h> 33#endif 34#include <sys/types.h> 35#include <sys/stat.h> 36#ifdef _EVENT_HAVE_SYS_TIME_H 37#include <sys/time.h> 38#endif 39#ifdef _EVENT_HAVE_SYS_SOCKET_H 40#include <sys/socket.h> 41#endif 42#include <fcntl.h> 43#include <stdlib.h> 44#include <stdio.h> 45#include <string.h> 46#include <signal.h> 47#include <errno.h> 48 49#include "event2/event.h" 50#include "event2/event_struct.h" 51#include "event2/event_compat.h" 52#include "event2/util.h" 53 54#ifdef _EVENT___func__ 55#define __func__ _EVENT___func__ 56#endif 57 58evutil_socket_t pair[2]; 59int test_okay = 1; 60int called = 0; 61 62static void 63write_cb(evutil_socket_t fd, short event, void *arg) 64{ 65 const char *test = "test string"; 66 int len; 67 68 len = send(fd, test, (int)strlen(test) + 1, 0); 69 70 printf("%s: write %d%s\n", __func__, 71 len, len ? "" : " - means EOF"); 72 73 if (len > 0) { 74 if (!called) 75 event_add(arg, NULL); 76 evutil_closesocket(pair[0]); 77 } else if (called == 1) 78 test_okay = 0; 79 80 called++; 81} 82 83int 84main(int argc, char **argv) 85{ 86 struct event ev; 87 88#ifdef WIN32 89 WORD wVersionRequested; 90 WSADATA wsaData; 91 int err; 92 93 wVersionRequested = MAKEWORD(2, 2); 94 95 err = WSAStartup(wVersionRequested, &wsaData); 96#endif 97 98#ifndef WIN32 99 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR) 100 return (1); 101#endif 102 103 if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == -1) 104 return (1); 105 106 /* Initalize the event library */ 107 event_init(); 108 109 /* Initalize one event */ 110 event_set(&ev, pair[1], EV_WRITE, write_cb, &ev); 111 112 event_add(&ev, NULL); 113 114 event_dispatch(); 115 116 return (test_okay); 117} 118 119