xref: /lighttpd1.4/src/fdevent_impl.h (revision 49e9f0ac)
1 #ifndef INCLUDED_FDEVENT_IMPL_H
2 #define INCLUDED_FDEVENT_IMPL_H
3 #include "first.h"
4 
5 /* select event-system */
6 
7 #if defined(HAVE_EPOLL_CTL) && defined(HAVE_SYS_EPOLL_H)
8 # define FDEVENT_USE_LINUX_EPOLL
9 struct epoll_event;     /* declaration */
10 #endif
11 
12 /* MacOS 10.3.x has poll.h under /usr/include/, all other unixes
13  * under /usr/include/sys/ */
14 #if defined HAVE_POLL && (defined(HAVE_SYS_POLL_H) || defined(HAVE_POLL_H))
15 # define FDEVENT_USE_POLL
16 struct pollfd;          /* declaration */
17 #endif
18 
19 #if defined HAVE_SELECT
20 # ifdef __WIN32
21 #  include <winsock2.h>
22 # endif
23 # define FDEVENT_USE_SELECT
24 # ifdef HAVE_SYS_SELECT_H
25 #  include <sys/select.h>
26 # endif
27 #endif
28 
29 #if defined HAVE_SYS_DEVPOLL_H && defined(__sun)
30 # define FDEVENT_USE_SOLARIS_DEVPOLL
31 struct pollfd;          /* declaration */
32 #endif
33 
34 #if defined HAVE_PORT_H && defined HAVE_PORT_CREATE && defined(__sun)
35 # define FDEVENT_USE_SOLARIS_PORT
36 # include <port.h>
37 #endif
38 
39 #if defined HAVE_SYS_EVENT_H && defined HAVE_KQUEUE
40 # define FDEVENT_USE_FREEBSD_KQUEUE
41 struct kevent;          /* declaration */
42 #endif
43 
44 #if defined HAVE_LIBEV
45 # define FDEVENT_USE_LIBEV
46 struct ev_loop;         /* declaration */
47 #endif
48 
49 #include "base_decls.h"
50 #include "fdevent.h"    /* (*fdevent_handler) */
51 
52 typedef enum {
53     FDEVENT_HANDLER_UNSET,
54     FDEVENT_HANDLER_SELECT,
55     FDEVENT_HANDLER_POLL,
56     FDEVENT_HANDLER_LINUX_SYSEPOLL,
57     FDEVENT_HANDLER_SOLARIS_DEVPOLL,
58     FDEVENT_HANDLER_SOLARIS_PORT,
59     FDEVENT_HANDLER_FREEBSD_KQUEUE,
60     FDEVENT_HANDLER_LIBEV
61 } fdevent_handler_t;
62 
63 /**
64  * array of unused fd's
65  *
66  */
67 
68 #ifdef FDEVENT_USE_POLL
69 typedef struct {
70     int *ptr;
71 
72     size_t used;
73     size_t size;
74 } buffer_int;
75 #endif
76 
77 struct fdevents {
78     fdnode **fdarray;
79     fdnode *pendclose;
80 
81     int (*event_set)(struct fdevents *ev, fdnode *fdn, int events);
82     int (*event_del)(struct fdevents *ev, fdnode *fdn);
83     int (*poll)(struct fdevents *ev, int timeout_ms);
84 
85     struct server *srv;
86     size_t maxfds;
87   #ifdef FDEVENT_USE_LINUX_EPOLL
88     int epoll_fd;
89     struct epoll_event *epoll_events;
90   #endif
91   #ifdef FDEVENT_USE_SOLARIS_DEVPOLL
92     int devpoll_fd;
93     struct pollfd *devpollfds;
94   #endif
95   #ifdef FDEVENT_USE_SOLARIS_PORT
96     int port_fd;
97     port_event_t *port_events;
98   #endif
99   #ifdef FDEVENT_USE_FREEBSD_KQUEUE
100     int kq_fd;
101     struct kevent *kq_results;
102   #endif
103   #ifdef FDEVENT_USE_LIBEV
104     struct ev_loop *libev_loop;
105   #endif
106   #ifdef FDEVENT_USE_POLL
107     struct pollfd *pollfds;
108 
109     size_t size;
110     size_t used;
111 
112     buffer_int unused;
113   #endif
114   #ifdef FDEVENT_USE_SELECT
115     fd_set select_read;
116     fd_set select_write;
117     fd_set select_error;
118 
119     fd_set select_set_read;
120     fd_set select_set_write;
121     fd_set select_set_error;
122 
123     int select_max_fd;
124   #endif
125 
126     int (*reset)(struct fdevents *ev);
127     void (*free)(struct fdevents *ev);
128     fdevent_handler_t type;
129 };
130 
131 __attribute_cold__
132 int fdevent_select_init(struct fdevents *ev);
133 __attribute_cold__
134 int fdevent_poll_init(struct fdevents *ev);
135 __attribute_cold__
136 int fdevent_linux_sysepoll_init(struct fdevents *ev);
137 __attribute_cold__
138 int fdevent_solaris_devpoll_init(struct fdevents *ev);
139 __attribute_cold__
140 int fdevent_solaris_port_init(struct fdevents *ev);
141 __attribute_cold__
142 int fdevent_freebsd_kqueue_init(struct fdevents *ev);
143 __attribute_cold__
144 int fdevent_libev_init(struct fdevents *ev);
145 
146 #endif
147