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moved canceling of context, and comments

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This commit is contained in:
postmannen 2021-03-29 06:53:34 +02:00
parent 03da2e18e7
commit 0d822b0751
2 changed files with 29 additions and 15 deletions
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4
example/toShip1-CLICommandRequest1.json
View file

@ -2,10 +2,10 @@
{
"toNode": "ship1",
"data": ["bash","-c","sleep 5 & echo 'apekatt'"],
"data": ["bash","-c","sleep 3 & echo 'apekatt'"],
"method":"CLICommandRequest",
"timeout":10,
"retries":3,
"MethodTimeout": 3
"MethodTimeout": 7
}
]

38
subscriber_method_types.go
View file

@ -197,6 +197,9 @@ func (m methodCLICommand) getKind() CommandOrEvent {
return m.commandOrEvent
}
// handler to run a CLI command with timeout context. The handler will
// return the output of the command run back to the calling publisher
// in the ack message.
func (m methodCLICommand) handler(proc process, message Message, node string) ([]byte, error) {
out := []byte{}
@ -204,7 +207,6 @@ func (m methodCLICommand) handler(proc process, message Message, node string) ([
a := message.Data[1:]
ctx, cancel := context.WithTimeout(context.Background(), time.Second*time.Duration(message.MethodTimeout))
defer cancel()
outCh := make(chan []byte)
@ -219,11 +221,11 @@ func (m methodCLICommand) handler(proc process, message Message, node string) ([
select {
case <-ctx.Done():
fmt.Printf(" ** Before\n")
er := fmt.Errorf("error: method timed out %v", proc)
cancel()
er := fmt.Errorf("error: method timed out %v", message)
sendErrorLogMessage(proc.newMessagesCh, proc.node, er)
fmt.Printf(" ** After\n")
case out = <-outCh:
cancel()
}
ackMsg := []byte(fmt.Sprintf("confirmed from node: %v: messageID: %v\n---\n%s---", node, message.ID, out))
@ -365,15 +367,21 @@ func (m methodCLICommandRequest) getKind() CommandOrEvent {
return m.commandOrEvent
}
// handler to run a CLI command with timeout context. The handler will
// return the output of the command run back to the calling publisher
// as a new message.
func (m methodCLICommandRequest) handler(proc process, message Message, node string) ([]byte, error) {
log.Printf("<--- CLICommandREQUEST received from: %v, containing: %v", message.FromNode, message.Data)
// Execute the CLI command in it's own go routine, so we are able
// to return immediately with an ack reply that the messag was
// received, and we create a new message to send back to the calling
// node for the out put of the actual command.
go func() {
c := message.Data[0]
a := message.Data[1:]
ctx, cancel := context.WithTimeout(context.Background(), time.Second*time.Duration(message.MethodTimeout))
defer cancel()
outCh := make(chan []byte)
@ -388,11 +396,11 @@ func (m methodCLICommandRequest) handler(proc process, message Message, node str
select {
case <-ctx.Done():
fmt.Printf(" ** Before\n")
er := fmt.Errorf("error: method timed out %v", proc)
cancel()
er := fmt.Errorf("error: method timed out %v", message)
sendErrorLogMessage(proc.newMessagesCh, proc.node, er)
fmt.Printf(" ** After\n")
case out := <-outCh:
cancel()
// Create a new message for the reply, and put it on the
// ringbuffer to be published.
@ -429,18 +437,24 @@ func (m methodCLICommandRequestNOSEQ) getKind() CommandOrEvent {
return m.commandOrEvent
}
// handler to run a CLI command with timeout context. The handler will
// return the output of the command run back to the calling publisher
// as a new message.
// The NOSEQ method will process messages as they are recived,
// and the reply back will be sent as soon as the process is
// done. No order are preserved.
func (m methodCLICommandRequestNOSEQ) handler(proc process, message Message, node string) ([]byte, error) {
log.Printf("<--- CLICommand REQUEST received from: %v, containing: %v", message.FromNode, message.Data)
// Execute the CLI command in it's own go routine, so we are able
// to return immediately with an ack reply that the messag was
// received, and we create a new message to send back to the calling
// node for the out put of the actual command.
go func() {
c := message.Data[0]
a := message.Data[1:]
ctx, cancel := context.WithTimeout(context.Background(), time.Second*time.Duration(message.MethodTimeout))
defer cancel()
outCh := make(chan []byte)
@ -455,11 +469,11 @@ func (m methodCLICommandRequestNOSEQ) handler(proc process, message Message, nod
select {
case <-ctx.Done():
fmt.Printf(" ** Before\n")
er := fmt.Errorf("error: method timed out %v", proc)
cancel()
er := fmt.Errorf("error: method timed out %v", message)
sendErrorLogMessage(proc.newMessagesCh, proc.node, er)
fmt.Printf(" ** After\n")
case out := <-outCh:
cancel()
// Create a new message for the reply, and put it on the
// ringbuffer to be published.