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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libgo/syscalls/socket_epoll.go
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Diffstat (limited to 'libgo/syscalls/socket_epoll.go')
-rw-r--r--libgo/syscalls/socket_epoll.go50
1 files changed, 50 insertions, 0 deletions
diff --git a/libgo/syscalls/socket_epoll.go b/libgo/syscalls/socket_epoll.go
new file mode 100644
index 000000000..0013f3349
--- /dev/null
+++ b/libgo/syscalls/socket_epoll.go
@@ -0,0 +1,50 @@
+// socket_epoll.go -- GNU/Linux epoll handling.
+
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Support for GNU/Linux epoll.
+// Only for implementing net package.
+// DO NOT USE DIRECTLY.
+
+package syscall
+
+// We don't take this type directly from the header file because it
+// uses a union. FIXME.
+
+type EpollEvent struct {
+ Events uint32;
+ Fd int32;
+ Pad int32;
+};
+
+func libc_epoll_create(size int) int __asm__ ("epoll_create");
+func libc_epoll_ctl(epfd, op, fd int, event *EpollEvent) int __asm__ ("epoll_ctl");
+func libc_epoll_wait(epfd int, events *EpollEvent, maxevents int,
+ timeout int) int __asm__ ("epoll_wait");
+
+
+func EpollCreate(size int) (fd int, errno int) {
+ fd = libc_epoll_create(int(size));
+ if fd < 0 { errno = GetErrno() }
+ return;
+}
+
+func EpollCtl(epfd, op, fd int, ev *EpollEvent) (errno int) {
+ r := libc_epoll_ctl(epfd, op, fd, ev);
+ if r < 0 { errno = GetErrno() }
+ return;
+}
+
+func EpollWait(epfd int, ev []EpollEvent, msec int) (n int, errno int) {
+ var events *EpollEvent;
+ var maxevents int;
+ if len(ev) > 0 {
+ maxevents = len(ev);
+ events = &ev[0]
+ }
+ n = libc_epoll_wait(epfd, events, maxevents, msec);
+ if n < 0 { errno = GetErrno() }
+ return;
+}