func (c *ServiceClient) attemptSend(timeout chan bool, attempts chan sendAttempt, ri *skynet.RequestInfo, fn string, in interface{}) {
ts("attemptSend")
defer te("attemptSend")
// first find an available instance
var instance *skynet.ServiceInfo
var r pools.Resource
var err error
for r == nil {
var ok bool
instance, ok = c.chooser.Choose(timeout)
if !ok {
dbg("timed out")
// must have timed out
return
}
dbg("chose", getInstanceKey(instance))
sp := c.instances[getInstanceKey(instance)]
// then, get a connection to that instance
dbg("acquiring connection")
r, err = sp.pool.Acquire()
dbgerr("sp.pool.Acquire", err)
dbg("acquired connection")
defer sp.pool.Release(r)
if err != nil {
if r != nil {
r.Close()
}
// TODO: report connection failure
c.chooser.Remove(instance)
c.Log.Item(FailedConnection{err})
}
}
if err != nil {
c.Log.Item(err)
attempts <- sendAttempt{err: err}
return
}
sr := r.(ServiceResource)
result, serviceErr, err := c.sendToInstance(sr, ri, fn, in)
dbgerr("c.sendToInstance", err)
if err != nil {
// some communication error happened, shut down this connection and remove it from the pool
sr.Close()
// and remove the instance from the chooser
c.chooser.Remove(instance)
return
}
attempts <- sendAttempt{
result: result,
err: serviceErr,
}
}
func (c *ServiceClient) attemptSend(timeout chan bool, attempts chan sendAttempt, ri *skynet.RequestInfo, fn string, in interface{}) {
// first find an available instance
var r pools.Resource
var err error
for r == nil {
instance, ok := c.chooser.Choose(timeout)
if !ok {
// must have timed out
return
}
sp := c.instances[getInstanceKey(instance)]
// then, get a connection to that instance
r, err = sp.pool.Acquire()
defer sp.pool.Release(r)
if err != nil {
if r != nil {
r.Close()
}
// TODO: report connection failure
c.chooser.Remove(instance)
c.Log.Item(FailedConnection{err})
}
}
if err != nil {
c.Log.Item(err)
attempts <- sendAttempt{err: err}
return
}
sr := r.(ServiceResource)
result, err := c.sendToInstance(sr, ri, fn, in)
attempts <- sendAttempt{
result: result,
err: err,
}
}