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* implement Linux epoll for polling i/o

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* isolate OS-specific polling goop in Pollster type
* move generic poll loop out of fd_darwin.go into fd.go

R=r
DELTA=782  (448 added, 281 deleted, 53 changed)
OCL=16108
CL=16119
This commit is contained in:
Russ Cox 2008-09-29 13:37:00 -07:00
parent 878fe69bc1
commit e4a61c6524
9 changed files with 507 additions and 339 deletions
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20
src/lib/syscall/socket_linux.go
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@ -95,5 +95,23 @@ export func getsockopt(fd, level, opt, valueptr, lenptr int64) (ret int64, errno
}
*/
// TODO: epoll
export func epoll_create(size int64) (ret int64, errno int64) {
r1, r2, err := syscall.Syscall(SYS_EPOLL_CREATE, size, 0, 0);
return r1, err
}
export func epoll_ctl(epfd, op, fd int64, ev *EpollEvent) int64 {
r1, r2, err := syscall.Syscall6(SYS_EPOLL_CTL, epfd, op, fd, EpollEventPtr(ev), 0, 0);
return err
}
export func epoll_wait(epfd int64, ev *[]EpollEvent, msec int64) (ret int64, err int64) {
var evptr, nev int64;
if ev != nil && len(ev) > 0 {
nev = int64(len(ev));
evptr = EpollEventPtr(&ev[0])
}
r1, r2, err1 := syscall.Syscall6(SYS_EPOLL_WAIT, epfd, evptr, nev, msec, 0, 0);
return r1, err1
}