2 Unix SMB/CIFS implementation.
4 generalised event loop handling
6 Copyright (C) Andrew Tridgell 2005
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include "talloc/talloc.h"
36 /* event handler types */
37 typedef void (*event_fd_handler_t)(struct event_context *, struct fd_event *,
39 typedef void (*event_timed_handler_t)(struct event_context *, struct timed_event *,
40 struct timeval , void *);
41 typedef void (*event_signal_handler_t)(struct event_context *, struct signal_event *,
42 int , int, void *, void *);
43 typedef void (*event_aio_handler_t)(struct event_context *, struct aio_event *,
46 struct event_context *event_context_init(TALLOC_CTX *mem_ctx);
47 struct event_context *event_context_init_byname(TALLOC_CTX *mem_ctx, const char *name);
48 const char **event_backend_list(TALLOC_CTX *mem_ctx);
49 void event_set_default_backend(const char *backend);
51 struct fd_event *event_add_fd(struct event_context *ev, TALLOC_CTX *mem_ctx,
52 int fd, uint16_t flags, event_fd_handler_t handler,
55 struct timed_event *event_add_timed(struct event_context *ev, TALLOC_CTX *mem_ctx,
56 struct timeval next_event,
57 event_timed_handler_t handler,
60 struct signal_event *event_add_signal(struct event_context *ev, TALLOC_CTX *mem_ctx,
61 int signum, int sa_flags,
62 event_signal_handler_t handler,
66 struct aio_event *event_add_aio(struct event_context *ev,
69 event_aio_handler_t handler,
72 int event_loop_once(struct event_context *ev);
73 int event_loop_wait(struct event_context *ev);
75 uint16_t event_get_fd_flags(struct fd_event *fde);
76 void event_set_fd_flags(struct fd_event *fde, uint16_t flags);
78 struct event_context *event_context_find(TALLOC_CTX *mem_ctx);
80 /* bits for file descriptor event flags */
81 #define EVENT_FD_READ 1
82 #define EVENT_FD_WRITE 2
83 #define EVENT_FD_AUTOCLOSE 4
85 #define EVENT_FD_WRITEABLE(fde) \
86 event_set_fd_flags(fde, event_get_fd_flags(fde) | EVENT_FD_WRITE)
87 #define EVENT_FD_READABLE(fde) \
88 event_set_fd_flags(fde, event_get_fd_flags(fde) | EVENT_FD_READ)
90 #define EVENT_FD_NOT_WRITEABLE(fde) \
91 event_set_fd_flags(fde, event_get_fd_flags(fde) & ~EVENT_FD_WRITE)
92 #define EVENT_FD_NOT_READABLE(fde) \
93 event_set_fd_flags(fde, event_get_fd_flags(fde) & ~EVENT_FD_READ)
95 #endif /* __EVENTS_H__ */