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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "monitor.h"
#include <vespa/fnet/frt/supervisor.h>
#include <vespa/fnet/frt/target.h>
#include <vespa/fnet/channel.h>
namespace slobrok {
//-----------------------------------------------------------------------------
Monitor::Monitor(IMonitoredServer &server, FRT_Supervisor &supervisor)
: FNET_Task(supervisor.GetScheduler()),
_monitoredServer(server),
_channel(NULL),
_enabled(false)
{
}
Monitor::~Monitor()
{
Kill(); // will deadlock if called from task
disconnect();
}
void
Monitor::enable(FRT_Target *monitorTarget)
{
assert(monitorTarget != NULL);
Unschedule();
disconnect();
_enabled = true;
FNET_Connection *conn = monitorTarget->GetConnection();
if (conn != NULL) {
_channel = conn->OpenChannel(this, FNET_Context());
}
if (_channel == NULL) {
ScheduleNow();
} else {
_channel->SetContext(FNET_Context(_channel));
}
}
void
Monitor::PerformTask()
{
if (_enabled) {
_monitoredServer.notifyDisconnected();
}
}
void
Monitor::disable()
{
_enabled = false;
disconnect();
}
void
Monitor::disconnect()
{
if (_channel != NULL) {
_channel->SetContext(FNET_Context((FNET_Channel *)0));
if (_channel->GetConnection()->GetState() <= FNET_Connection::FNET_CONNECTED) {
_channel->CloseAndFree();
}
_channel = NULL;
}
}
FNET_IPacketHandler::HP_RetCode
Monitor::HandlePacket(FNET_Packet *packet,
FNET_Context context)
{
if (context._value.CHANNEL == 0) {
packet->Free();
return FNET_FREE_CHANNEL;
}
if (!packet->IsChannelLostCMD()) {
packet->Free();
return FNET_KEEP_CHANNEL;
}
_channel = NULL;
ScheduleNow();
return FNET_FREE_CHANNEL;
}
//-----------------------------------------------------------------------------
} // namespace slobrok
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