mirror of https://github.com/tidwall/evio.git
60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
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package doppio
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import (
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"syscall"
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"time"
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)
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func (c *conn) addwrite() error {
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if c.writeon {
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return nil
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}
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c.writeon = true
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return syscall.EpollCtl(c.p, syscall.EPOLL_CTL_MOD, c.fd,
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&syscall.EpollEvent{Fd: int32(c.fd),
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Events: syscall.EPOLLIN | syscall.EPOLLOUT,
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})
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}
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func (c *conn) delwrite() error {
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if !c.writeon {
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return nil
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}
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c.writeon = false
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return syscall.EpollCtl(c.p, syscall.EPOLL_CTL_MOD, c.fd,
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&syscall.EpollEvent{Fd: int32(c.fd),
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Events: syscall.EPOLLIN,
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})
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}
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func makepoll() (p int, err error) {
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return syscall.EpollCreate1(0)
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}
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func addread(p, fd int) error {
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return syscall.EpollCtl(p, syscall.EPOLL_CTL_ADD, fd,
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&syscall.EpollEvent{Fd: int32(fd),
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Events: syscall.EPOLLIN,
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})
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}
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func makeevents(n int) interface{} {
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return make([]syscall.EpollEvent, n)
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}
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func wait(p int, evs interface{}, timeout time.Duration) (n int, err error) {
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if timeout < 0 {
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timeout = 0
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}
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ts := int(timeout / time.Millisecond)
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return syscall.EpollWait(p, evs.([]syscall.EpollEvent), ts)
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}
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func getfd(evs interface{}, i int) int {
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return int(evs.([]syscall.EpollEvent)[i].Fd)
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}
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func setkeepalive(fd, secs int) error {
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if err := syscall.SetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_KEEPALIVE, 1); err != nil {
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return err
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}
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if err := syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, syscall.TCP_KEEPINTVL, secs); err != nil {
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return err
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}
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return syscall.SetsockoptInt(fd, syscall.IPPROTO_TCP, syscall.TCP_KEEPIDLE, secs)
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}
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