1a9643ea8Slogwang #include <stdio.h> 2a9643ea8Slogwang #include <stdlib.h> 3a9643ea8Slogwang #include <stdint.h> 4a9643ea8Slogwang #include <strings.h> 5a9643ea8Slogwang #include <sys/types.h> 6a9643ea8Slogwang #include <sys/socket.h> 7a9643ea8Slogwang #include <arpa/inet.h> 8a9643ea8Slogwang #include <errno.h> 9a9643ea8Slogwang #include <assert.h> 10a9643ea8Slogwang 11a9643ea8Slogwang #include "ff_config.h" 12a9643ea8Slogwang #include "ff_api.h" 13a9643ea8Slogwang 14a9643ea8Slogwang #define MAX_EVENTS 512 15a9643ea8Slogwang 16a9643ea8Slogwang /* kevent set */ 17a9643ea8Slogwang struct kevent kevSet; 18a9643ea8Slogwang /* events */ 19a9643ea8Slogwang struct kevent events[MAX_EVENTS]; 20a9643ea8Slogwang /* kq */ 21a9643ea8Slogwang int kq; 22a9643ea8Slogwang int sockfd; 23a9643ea8Slogwang 24a9643ea8Slogwang char html[] = 25a9643ea8Slogwang "HTTP/1.1 200 OK\r\n" 26a9643ea8Slogwang "Server: F-Stack\r\n" 27a9643ea8Slogwang "Date: Sat, 25 Feb 2017 09:26:33 GMT\r\n" 28a9643ea8Slogwang "Content-Type: text/html\r\n" 29a9643ea8Slogwang "Content-Length: 439\r\n" 30a9643ea8Slogwang "Last-Modified: Tue, 21 Feb 2017 09:44:03 GMT\r\n" 31a9643ea8Slogwang "Connection: keep-alive\r\n" 32a9643ea8Slogwang "Accept-Ranges: bytes\r\n" 33a9643ea8Slogwang "\r\n" 34a9643ea8Slogwang "<!DOCTYPE html>\r\n" 35a9643ea8Slogwang "<html>\r\n" 36a9643ea8Slogwang "<head>\r\n" 37a9643ea8Slogwang "<title>Welcome to F-Stack!</title>\r\n" 38a9643ea8Slogwang "<style>\r\n" 39a9643ea8Slogwang " body { \r\n" 40a9643ea8Slogwang " width: 35em;\r\n" 41a9643ea8Slogwang " margin: 0 auto; \r\n" 42a9643ea8Slogwang " font-family: Tahoma, Verdana, Arial, sans-serif;\r\n" 43a9643ea8Slogwang " }\r\n" 44a9643ea8Slogwang "</style>\r\n" 45a9643ea8Slogwang "</head>\r\n" 46a9643ea8Slogwang "<body>\r\n" 47a9643ea8Slogwang "<h1>Welcome to F-Stack!</h1>\r\n" 48a9643ea8Slogwang "\r\n" 49a9643ea8Slogwang "<p>For online documentation and support please refer to\r\n" 50a9643ea8Slogwang "<a href=\"http://F-Stack.org/\">F-Stack.org</a>.<br/>\r\n" 51a9643ea8Slogwang "\r\n" 52a9643ea8Slogwang "<p><em>Thank you for using F-Stack.</em></p>\r\n" 53a9643ea8Slogwang "</body>\r\n" 54a9643ea8Slogwang "</html>"; 55a9643ea8Slogwang 56a9643ea8Slogwang int loop(void *arg) 57a9643ea8Slogwang { 58a9643ea8Slogwang /* Wait for events to happen */ 59a9643ea8Slogwang unsigned nevents = ff_kevent(kq, NULL, 0, events, MAX_EVENTS, NULL); 60a9643ea8Slogwang unsigned i; 61a9643ea8Slogwang 62a9643ea8Slogwang for (i = 0; i < nevents; ++i) { 63a9643ea8Slogwang struct kevent event = events[i]; 64a9643ea8Slogwang int clientfd = (int)event.ident; 65a9643ea8Slogwang 66a9643ea8Slogwang /* Handle disconnect */ 67a9643ea8Slogwang if (event.flags & EV_EOF) { 68a9643ea8Slogwang 69a9643ea8Slogwang /* Simply close socket */ 70a9643ea8Slogwang ff_close(clientfd); 71a9643ea8Slogwang 722dfcd880Swhl739 //printf("A client has left the server...,fd:%d\n", clientfd); 73a9643ea8Slogwang } else if (clientfd == sockfd) { 74a9643ea8Slogwang int nclientfd = ff_accept(sockfd, NULL, NULL); 75a9643ea8Slogwang 76a9643ea8Slogwang assert(nclientfd > 0); 77a9643ea8Slogwang 78a9643ea8Slogwang /* Add to event list */ 79a9643ea8Slogwang kevSet.data = 0; 80a9643ea8Slogwang kevSet.fflags = 0; 81a9643ea8Slogwang kevSet.filter = EVFILT_READ; 82a9643ea8Slogwang kevSet.flags = EV_ADD; 83a9643ea8Slogwang kevSet.ident = nclientfd; 84a9643ea8Slogwang kevSet.udata = NULL; 85a9643ea8Slogwang 86a9643ea8Slogwang assert(ff_kevent(kq, &kevSet, 1, NULL, 0, NULL) == 0); 87a9643ea8Slogwang 882dfcd880Swhl739 //printf("A new client connected to the server..., fd:%d\n", nclientfd); 89a9643ea8Slogwang 90a9643ea8Slogwang } else if (event.filter == EVFILT_READ) { 91a9643ea8Slogwang char buf[256]; 92a9643ea8Slogwang size_t readlen = ff_read(clientfd, buf, sizeof(buf)); 93a9643ea8Slogwang 942dfcd880Swhl739 //printf("bytes %zu are available to read...,fd:%d\n", (size_t)event.data, clientfd); 95a9643ea8Slogwang 96a9643ea8Slogwang ff_write(clientfd, html, sizeof(html)); 97a9643ea8Slogwang 98a9643ea8Slogwang } else { 992dfcd880Swhl739 printf("unknown event: %8.8X\n", event.flags); 100a9643ea8Slogwang } 101a9643ea8Slogwang } 102a9643ea8Slogwang } 103a9643ea8Slogwang 104a9643ea8Slogwang int main(int argc, char * argv[]) 105a9643ea8Slogwang { 106a02c88d6Slogwang ff_init(argc, argv); 107a9643ea8Slogwang 108*615f2d3cSlogwang sockfd = ff_socket(AF_INET, SOCK_STREAM, 0); 109a9643ea8Slogwang printf("sockfd:%d\n", sockfd); 110a9643ea8Slogwang if (sockfd < 0) 111a9643ea8Slogwang printf("ff_socket failed\n"); 112a9643ea8Slogwang 113a9643ea8Slogwang struct sockaddr_in my_addr; 114a9643ea8Slogwang bzero(&my_addr, sizeof(my_addr)); 115a9643ea8Slogwang my_addr.sin_family = AF_INET; 116a9643ea8Slogwang my_addr.sin_port = htons(80); 117a9643ea8Slogwang my_addr.sin_addr.s_addr = htonl(INADDR_ANY); 118a9643ea8Slogwang 119a9643ea8Slogwang int ret = ff_bind(sockfd, (struct linux_sockaddr *)&my_addr, sizeof(my_addr)); 120a9643ea8Slogwang if (ret < 0) { 121a9643ea8Slogwang printf("ff_bind failed\n"); 122a9643ea8Slogwang } 123a9643ea8Slogwang 124a9643ea8Slogwang ret = ff_listen(sockfd, MAX_EVENTS); 125a9643ea8Slogwang if (ret < 0) { 126a9643ea8Slogwang printf("ff_listen failed\n"); 127a9643ea8Slogwang } 128a9643ea8Slogwang 129a9643ea8Slogwang kevSet.data = MAX_EVENTS; 130a9643ea8Slogwang kevSet.fflags = 0; 131a9643ea8Slogwang kevSet.filter = EVFILT_READ; 132a9643ea8Slogwang kevSet.flags = EV_ADD; 133a9643ea8Slogwang kevSet.ident = sockfd; 134a9643ea8Slogwang kevSet.udata = NULL; 135a9643ea8Slogwang 136a9643ea8Slogwang assert((kq = ff_kqueue()) > 0); 137a9643ea8Slogwang 138a9643ea8Slogwang /* Update kqueue */ 139a9643ea8Slogwang ff_kevent(kq, &kevSet, 1, NULL, 0, NULL); 140a9643ea8Slogwang 141a9643ea8Slogwang ff_run(loop, NULL); 142a9643ea8Slogwang return 0; 143a9643ea8Slogwang } 144a9643ea8Slogwang 145a9643ea8Slogwang 146