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proper waiting

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This commit is contained in:
Juan Batiz-Benet
2015-01-19 16:43:02 -08:00
parent f2ab96a83e
commit b11afac096
1 changed files with 7 additions and 1 deletions
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8
impl_unix.go
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@@ -314,6 +314,7 @@ func connect(fd int, ra syscall.Sockaddr) error {
} }
var err error var err error
start := time.Now()
for { for {
// if err := fd.pd.WaitWrite(); err != nil { // if err := fd.pd.WaitWrite(); err != nil {
// return err // return err
@@ -321,7 +322,8 @@ func connect(fd int, ra syscall.Sockaddr) error {
// i'd use the above fd.pd.WaitWrite to poll io correctly, just like net sockets... // i'd use the above fd.pd.WaitWrite to poll io correctly, just like net sockets...
// but of course, it uses fucking runtime_* functions that _cannot_ be used by // but of course, it uses fucking runtime_* functions that _cannot_ be used by
// non-go-stdlib source... seriously guys, what kind of bullshit is that!? // non-go-stdlib source... seriously guys, what kind of bullshit is that!?
<-time.After(20 * time.Microsecond) // we're relegated to using syscall.Select (what nightmare that is) or using
// a simple but totally bogus time-based wait. garbage.
var nerr int var nerr int
nerr, err = syscall.GetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_ERROR) nerr, err = syscall.GetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_ERROR)
if err != nil { if err != nil {
@@ -329,6 +331,10 @@ func connect(fd int, ra syscall.Sockaddr) error {
} }
switch err = syscall.Errno(nerr); err { switch err = syscall.Errno(nerr); err {
case syscall.EINPROGRESS, syscall.EALREADY, syscall.EINTR: case syscall.EINPROGRESS, syscall.EALREADY, syscall.EINTR:
if time.Now().Sub(start) > time.Second {
return err
}
<-time.After(20 * time.Microsecond)
case syscall.Errno(0), syscall.EISCONN: case syscall.Errno(0), syscall.EISCONN:
return nil return nil
default: default: