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wifinina: avoid busy wait

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This commit is contained in:
Yurii Soldak
2021-10-20 00:08:20 +02:00
committed by Ron Evans
parent 114e24870e
commit 0f9b9d873b
3 changed files with 17 additions and 43 deletions
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wifinina/tcp.go
+6 -7
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@@ -87,7 +87,8 @@ func (drv *Driver) connectSocket(addr, portStr string, mode uint8) error {
}
// FIXME: this 4 second timeout is simply mimicking the Arduino driver
for t := newTimer(4 * time.Second); !t.Expired(); {
start := time.Now()
for time.Since(start) < 4*time.Second {
connected, err := drv.IsConnected()
if err != nil {
return err
@@ -95,7 +96,7 @@ func (drv *Driver) connectSocket(addr, portStr string, mode uint8) error {
if connected {
return nil
}
wait(1 * time.Millisecond)
time.Sleep(1 * time.Millisecond)
}
return ErrConnectionTimeout
@@ -272,15 +273,13 @@ func (drv *Driver) stop() error {
return nil
}
drv.dev.StopClient(drv.sock)
for t := newTimer(5 * time.Second); !t.Expired(); {
start := time.Now()
for time.Since(start) < 5*time.Second {
st, _ := drv.status()
if st == TCPStateClosed {
break
}
// FIXME: without the time.Sleep below this blocks until TCPStateClosed,
// however with it got goroutine stack overflows; not sure if this is still
// an issue so should investigate further
//time.Sleep(1 * time.Millisecond)
time.Sleep(1 * time.Millisecond)
}
drv.sock = NoSocketAvail
return nil