xref: /lighttpd1.4/src/fdevent_impl.h (revision e11f72b1)
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     uint32_t used;
73     uint32_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     log_error_st *errh;
86     int *cur_fds;
87     uint32_t maxfds;
88   #ifdef FDEVENT_USE_LINUX_EPOLL
89     int epoll_fd;
90     struct epoll_event *epoll_events;
91   #endif
92   #ifdef FDEVENT_USE_SOLARIS_DEVPOLL
93     int devpoll_fd;
94     struct pollfd *devpollfds;
95   #endif
96   #ifdef FDEVENT_USE_SOLARIS_PORT
97     int port_fd;
98     port_event_t *port_events;
99   #endif
100   #ifdef FDEVENT_USE_FREEBSD_KQUEUE
101     int kq_fd;
102     struct kevent *kq_results;
103   #endif
104   #ifdef FDEVENT_USE_LIBEV
105     struct ev_loop *libev_loop;
106   #endif
107   #ifdef FDEVENT_USE_POLL
108     struct pollfd *pollfds;
109 
110     uint32_t size;
111     uint32_t used;
112 
113     buffer_int unused;
114   #endif
115   #ifdef FDEVENT_USE_SELECT
116     fd_set select_read;
117     fd_set select_write;
118     fd_set select_error;
119 
120     fd_set select_set_read;
121     fd_set select_set_write;
122     fd_set select_set_error;
123 
124     int select_max_fd;
125   #endif
126 
127     int (*reset)(struct fdevents *ev);
128     void (*free)(struct fdevents *ev);
129     const char *event_handler;
130     fdevent_handler_t type;
131 };
132 
133 __attribute_cold__
134 int fdevent_select_init(struct fdevents *ev);
135 __attribute_cold__
136 int fdevent_poll_init(struct fdevents *ev);
137 __attribute_cold__
138 int fdevent_linux_sysepoll_init(struct fdevents *ev);
139 __attribute_cold__
140 int fdevent_solaris_devpoll_init(struct fdevents *ev);
141 __attribute_cold__
142 int fdevent_solaris_port_init(struct fdevents *ev);
143 __attribute_cold__
144 int fdevent_freebsd_kqueue_init(struct fdevents *ev);
145 __attribute_cold__
146 int fdevent_libev_init(struct fdevents *ev);
147 
148 #endif
149