Add some api

Signed-off-by: Jianhui Zhao <zhaojh329@gmail.com>

src/connection.c

@@ -706,8 +706,24 @@ static void keepalive_cb(struct ev_loop *loop, struct ev_timer *w, int revents)
     conn_error(&conn->com, HTTP_STATUS_REQUEST_TIMEOUT, NULL);
 }
 
+static struct uh_server *conn_get_server(struct uh_connection *conn)
+{
+    struct uh_connection_internal *conni = (struct uh_connection_internal *)conn;
+
+    return &conni->srv->com;
+}
+
+static struct ev_loop *conn_get_loop(struct uh_connection *conn)
+{
+    struct uh_connection_internal *conni = (struct uh_connection_internal *)conn;
+
+    return conni->srv->loop;
+}
+
 static void conn_init_cb(struct uh_connection *conn)
 {
+    conn->get_server = conn_get_server;
+    conn->get_loop = conn_get_loop;
     conn->done = conn_done;
     conn->send = conn_send;
     conn->send_file = conn_send_file;

src/uhttpd.c

@@ -371,6 +371,13 @@ static int uh_set_index_page(struct uh_server *srv, const char *name)
     return 0;
 }
 
+static struct ev_loop *uh_get_loop(struct uh_server *srv)
+{
+    struct uh_server_internal *srvi = (struct uh_server_internal *)srv;
+
+    return srvi->loop;
+}
+
 int uh_server_init(struct uh_server *srv, struct ev_loop *loop, const char *host, int port)
 {
     struct uh_server_internal *srvi = (struct uh_server_internal *)srv;
@@ -446,6 +453,7 @@ int uh_server_init(struct uh_server *srv, struct ev_loop *loop, const char *host
         uh_log_debug("Listen on: %s %d\n", addr_str, port);
     }
 
+    srv->get_loop = uh_get_loop;
     srv->free = uh_server_free;
     srv->start_worker = uh_start_worker;
 

src/uhttpd.h

@@ -45,7 +45,11 @@ enum {
     UH_EV_COMPLETE
 };
 
+struct uh_server;
+
 struct uh_connection {
+    struct uh_server *(*get_server)(struct uh_connection *conn);
+    struct ev_loop *(*get_loop)(struct uh_connection *conn);
     /*
     ** Indicates the end of request processing
     ** Must be called at last, if not call 'error', 'redirect' and 'serve_file'
@@ -78,6 +82,7 @@ struct uh_connection {
 typedef void (*uh_path_handler_prototype)(struct uh_connection *conn, int event);
 
 struct uh_server {
+    struct ev_loop *(*get_loop)(struct uh_server *srv);
     void (*free)(struct uh_server *srv);
     /*
     ** Start n worker processes to process the requests