void read_handler(aeEventLoop *el, int fd, void *privdata, int mask)
{
int err;
int nread;
(void) mask;
char buf[BUF_SIZE]={0};
struct request *req = (struct request*)privdata;
nread = read(fd, buf, BUF_SIZE);
if (nread < 1) {
request_free(req);
aeDeleteFileEvent(el, fd, AE_WRITABLE);
aeDeleteFileEvent(el, fd, AE_READABLE);
close(fd);
_clicount--;
return;
} else {
request_append(req, buf, nread);
err = request_parse(req);
if (err == -1) {
request_free(req);
aeDeleteFileEvent(el, fd, AE_WRITABLE);
aeDeleteFileEvent(el, fd, AE_READABLE);
close(fd);
_clicount--;
return;
}
if (err == 1) {
_process_cmd(fd, req);
request_clean(req);
}
}
}
static void connection_readable_cb(EV_P_ struct ev_io *watcher, int revents)
{
connection_t *c = get_ev_data(connection, watcher, read);
char buf[BUFFER_CHUNK_SIZE];
if (EV_ERROR & revents) {
connection_error(c, "Error reading on connection socket");
return;
}
size_t received = recv(c->fd, buf, BUFFER_CHUNK_SIZE, 0);
ev_timer_again(c->loop, &c->timeout_watcher);
if (received == -1) {
/* error, closing connection */
connection_errno(c);
return;
}
if (received == 0) {
/* received 0 byte, read again next loop */
return;
}
trace(c->backend, buf, received);
request_parse(c, buf, received);
}
int main(/*int argc, char *argv[]*/) {
INFO("Started\n");
int server_socket, client_socket, port, res, client_len, n;
struct sockaddr_in srv_addr, client_addr;
int iSetOption = 1;
port = SRVPORT;
server_socket = socket(AF_INET, SOCK_STREAM, 0);
setsockopt(server_socket, SOL_SOCKET, SO_REUSEADDR, (char*)&iSetOption,
sizeof(iSetOption));
if (server_socket < 0) {
ERROR("Error opening socket\n");
IFERROR(perror(""));
}
INFO("Made server socket\n");
memset((char *) &srv_addr, 0, sizeof(srv_addr));
srv_addr.sin_family = AF_INET;
srv_addr.sin_port = htons(port);
srv_addr.sin_addr.s_addr = INADDR_ANY;
while ((res = bind(server_socket,
(struct sockaddr *) &srv_addr,
sizeof(srv_addr))) < 0) {
ERROR("Error binding socket\n");
IFERROR(perror(""));
}
listen(server_socket, 5);
INFO("Listening on port %d\n", port);
client_len = sizeof(client_addr);
if (chdir("content")) {
ERROR("Could not chdir to the content directory\n");
IFERROR(perror(""));
exit(1);
}
do {
client_socket = accept(server_socket,
(struct sockaddr *) &client_addr,
(socklen_t *) &client_len);
INFO("Accepted client socket\n");
if (client_socket < 0) {
ERROR("Error on client accept\n");
IFERROR(perror(""));
}
request *req = request_new();
char line[MAXLEN];
while ((n = fd_readline(client_socket, line, MAXLEN)) > 0) {
if (n == MAXLEN-1 && line[MAXLEN-1] != '\n') {
WARN("Line length exceeded MAXLEN %d\n", MAXLEN);
char c;
int dropped = 0;
while ((n = read(client_socket, &c, 1)) > 0) {
dropped += 1;
if (c == '\n')
break;
}
WARN("Skipped to the next line, dropped %d characters\n", dropped);
}
if (is_crlf(line)) { // We've reached the end of the headers
int left_to_read = request_get_content_length(req);
int total_read = 0, len;
if (left_to_read > 0) {
DEBUG("There's %d chars of body to read\n", left_to_read);
// There's a Content-Length so there must be a body
req->body = malloc(sizeof(char) * (left_to_read+1));
len = MAXLEN < left_to_read ? MAXLEN : left_to_read;
len += 1;
while (left_to_read && (n = fd_readline(client_socket, line, len)) > 0) {
DEBUG("Read %d characters of body: %s\n", n, line);
strcpy(&req->body[total_read], line);
total_read += n;
left_to_read -= n;
DEBUG("total_read: %d, left_to_read: %d\n", total_read, left_to_read);
len = MAXLEN < left_to_read ? MAXLEN : left_to_read;
}
req->body[total_read+1] = '\0';
DEBUG("Done reading body in %d chars:\n", total_read);
DEBUG("%s\n", req->body);
respond(&req, client_socket);
continue;
} else {
DEBUG("No body to read, generating response\n");
respond(&req, client_socket);
continue;
}
}
if (request_parse(req, line)) {
WARN("An error occurred while parsing the previous line\n");
}
}
DEBUG("Done with this request! n = %d\n", n);
} while (1);
close(server_socket);
close(client_socket);
return 0;
}
int main(int argc, char **args)
{
int httpd,client;
struct sockaddr_in client_addr;
socklen_t len = sizeof(client_addr);
int epfd,nfds, i, fd, n, nread;
struct epoll_event ev,events[MAX_CONNECT];
char buf[2048];
int ret = -1;
signal(SIGPIPE, SIG_IGN);
//set_log_file("./log.txt");
ret = chroot("web");
if (ret)
{
perror("chroot err");
//return -1;
}
on_exit(httpd_destory, (void *)&httpd);
bzero(&client_addr,sizeof client_addr);
if (0 > (httpd = mnet_tcp_server(HTTP_PORT)))
{
printf("start up server err\n");
return -1;
}
epfd = epoll_create(MAX_CONNECT);
if (epfd == -1)
{
printf("err when epoll create\n");
return -1;
}
ev.data.fd = httpd;
ev.events = EPOLLIN|EPOLLET;//监听读状态同时设置ET模式
epoll_ctl(epfd, EPOLL_CTL_ADD, httpd, &ev);//注册epoll事件
while(1)
{
nfds = epoll_wait(epfd, events, MAX_CONNECT, -1);
if (nfds == -1)
{
printf("failed when epoll wait\n");
continue;
}
for (i = 0; i < nfds; i++)
{
fd = events[i].data.fd;
if (fd == httpd)
{
while ((client = accept(httpd, (struct sockaddr *) &client_addr, (size_t *)&len)) > 0)
{
if (mnet_setnoblock(client))
{
mlog_err("failed when set client nonlock");
continue;
}
ev.events = EPOLLIN | EPOLLET;
ev.data.fd = client;
if (epoll_ctl(epfd, EPOLL_CTL_ADD, client, &ev) == -1)
{
perror("epoll add client err");
continue;
}
mlog_info("accept fd : %d", client);
}
if (errno != EAGAIN && errno != ECONNABORTED
&& errno != EPROTO && errno != EINTR)
perror("accept");
continue;
}
if (events[i].events & EPOLLIN)
{
n = 0;
while ((nread = read(fd, buf + n, BUFSIZ-1)) > 0) //ET下可以读就一直读
{
n += nread;
}
if (n == 0)
{
mlog_err("client: %d request over", fd);
close(fd);
continue;
}
buf[n] = 0;
if (nread == -1 && errno != EAGAIN)
{
perror("read error");
}
mlog_info("read fd : %d, req: %s", fd, buf);
//recv_dump(fd);
#if 0
ev.data.fd = fd;
ev.events = events[i].events | EPOLLOUT; //MOD OUT
if (epoll_ctl(epfd, EPOLL_CTL_MOD, fd, &ev) == -1) {
perror("epoll_ctl: mod");
}
#else
do_request(request_parse(buf, len), fd);
#endif
}
}
}
fail_label:
close(httpd);
return 0;
}
