2 * Copyright (c) 2011 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the License);
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an AS IS BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
20 #include <stdint.h> /* for int64_t */
22 /* events that may be observed */
23 #define FDE_READ 0x0001
24 #define FDE_WRITE 0x0002
25 #define FDE_ERROR 0x0004
26 #define FDE_TIMEOUT 0x0008
28 /* features that may be set (via the events set/add/del interface) */
29 #define FDE_DONT_CLOSE 0x0080
31 typedef struct fdevent fdevent;
33 typedef void (*fd_func)(int fd, unsigned events, void *userdata);
35 /* Allocate and initialize a new fdevent object
36 * Note: use FD_TIMER as 'fd' to create a fd-less object
37 * (used to implement timers).
39 fdevent *fdevent_create(int fd, fd_func func, void *arg);
41 /* Uninitialize and deallocate an fdevent object that was
42 ** created by fdevent_create()
44 void fdevent_destroy(fdevent *fde);
46 /* Initialize an fdevent object that was externally allocated
48 void fdevent_install(fdevent *fde, int fd, fd_func func, void *arg);
50 /* Uninitialize an fdevent object that was initialized by
53 void fdevent_remove(fdevent *item);
55 /* Change which events should cause notifications
57 void fdevent_set(fdevent *fde, unsigned events);
58 void fdevent_add(fdevent *fde, unsigned events);
59 void fdevent_del(fdevent *fde, unsigned events);
61 void fdevent_set_timeout(fdevent *fde, int64_t timeout_ms);
63 /* loop forever, handling events.
75 unsigned short events;