Mercurial > projects > ldc

comparison tango/tango/sys/linux/epoll.d @ 132:1700239cab2e trunk

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
[svn r136] MAJOR UNSTABLE UPDATE!!! Initial commit after moving to Tango instead of Phobos. Lots of bugfixes... This build is not suitable for most things.
author lindquist
date Fri, 11 Jan 2008 17:57:40 +0100
parents
children
comparison
equal deleted inserted replaced
131:5825d48b27d1 132:1700239cab2e
1 module tango.sys.linux.epoll;
2
3 version (linux)
4 {
5 // From <sys/epoll.h>: support for the Linux epoll_*() system calls
6 extern (C)
7 {
8 enum: uint
9 {
10 EPOLLIN = 0x001,
11 EPOLLPRI = 0x002,
12 EPOLLOUT = 0x004,
13 EPOLLRDNORM = 0x040,
14 EPOLLRDBAND = 0x080,
15 EPOLLWRNORM = 0x100,
16 EPOLLWRBAND = 0x200,
17 EPOLLMSG = 0x400,
18 EPOLLERR = 0x008,
19 EPOLLHUP = 0x010,
20 EPOLLONESHOT = (1 << 30),
21 EPOLLET = (1 << 31)
22 }
23
24 // Valid opcodes ( "op" parameter ) to issue to epoll_ctl().
25 public const int EPOLL_CTL_ADD = 1; // Add a file descriptor to the interface.
26 public const int EPOLL_CTL_DEL = 2; // Remove a file descriptor from the interface.
27 public const int EPOLL_CTL_MOD = 3; // Change file descriptor epoll_event structure.
28
29 align(1) union epoll_data
30 {
31 void* ptr;
32 int fd;
33 uint u32;
34 ulong u64;
35 }
36
37 alias epoll_data epoll_data_t;
38
39 align(1) struct epoll_event
40 {
41 uint events; // Epoll events
42 epoll_data_t data; // User data variable
43 }
44
45 // Creates an epoll instance. Returns an fd for the new instance.
46 // The "size" parameter is a hint specifying the number of file
47 // descriptors to be associated with the new instance. The fd
48 // returned by epoll_create() should be closed with close().
49 int epoll_create(int size);
50
51 // Manipulate an epoll instance "epfd". Returns 0 in case of success,
52 // -1 in case of error (the "errno" variable will contain the
53 // specific error code) The "op" parameter is one of the EPOLL_CTL_*
54 // constants defined above. The "fd" parameter is the target of the
55 // operation. The "event" parameter describes which events the caller
56 // is interested in and any associated user data.
57 int epoll_ctl(int epfd, int op, int fd, epoll_event* event);
58
59 // Wait for events on an epoll instance "epfd". Returns the number of
60 // triggered events returned in "events" buffer. Or -1 in case of
61 // error with the "errno" variable set to the specific error code. The
62 // "events" parameter is a buffer that will contain triggered
63 // events. The "maxevents" is the maximum number of events to be
64 // returned (usually size of "events"). The "timeout" parameter
65 // specifies the maximum wait time in milliseconds (-1 == infinite).
66 int epoll_wait(int epfd, epoll_event* events, int maxevents, int timeout);
67 }
68 }