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/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#ifndef CHECKABLE_H
#define CHECKABLE_H
#include "base/atomic.hpp"
#include "base/timer.hpp"
#include "base/process.hpp"
#include "icinga/i2-icinga.hpp"
#include "icinga/checkable-ti.hpp"
#include "icinga/timeperiod.hpp"
#include "icinga/notification.hpp"
#include "icinga/comment.hpp"
#include "icinga/downtime.hpp"
#include "remote/endpoint.hpp"
#include "remote/messageorigin.hpp"
#include <condition_variable>
#include <cstdint>
#include <functional>
#include <limits>
namespace icinga
{
/**
* @ingroup icinga
*/
enum DependencyType
{
DependencyState,
DependencyCheckExecution,
DependencyNotification
};
/**
* Checkable Types
*
* @ingroup icinga
*/
enum CheckableType
{
CheckableHost,
CheckableService
};
/**
* @ingroup icinga
*/
enum FlappingStateFilter
{
FlappingStateFilterOk = 1,
FlappingStateFilterWarning = 2,
FlappingStateFilterCritical = 4,
FlappingStateFilterUnknown = 8,
};
class CheckCommand;
class EventCommand;
class Dependency;
/**
* An Icinga service.
*
* @ingroup icinga
*/
class Checkable : public ObjectImpl<Checkable>
{
public:
DECLARE_OBJECT(Checkable);
DECLARE_OBJECTNAME(Checkable);
static void StaticInitialize();
static thread_local std::function<void(const Value& commandLine, const ProcessResult&)> ExecuteCommandProcessFinishedHandler;
Checkable();
std::set<Checkable::Ptr> GetParents() const;
std::set<Checkable::Ptr> GetChildren() const;
std::set<Checkable::Ptr> GetAllChildren() const;
void AddGroup(const String& name);
bool IsReachable(DependencyType dt = DependencyState, intrusive_ptr<Dependency> *failedDependency = nullptr, int rstack = 0) const;
AcknowledgementType GetAcknowledgement();
void AcknowledgeProblem(const String& author, const String& comment, AcknowledgementType type, bool notify = true, bool persistent = false, double changeTime = Utility::GetTime(), double expiry = 0, const MessageOrigin::Ptr& origin = nullptr);
void ClearAcknowledgement(const String& removedBy, double changeTime = Utility::GetTime(), const MessageOrigin::Ptr& origin = nullptr);
int GetSeverity() const override;
bool GetProblem() const override;
bool GetHandled() const override;
Timestamp GetNextUpdate() const override;
/* Checks */
intrusive_ptr<CheckCommand> GetCheckCommand() const;
TimePeriod::Ptr GetCheckPeriod() const;
long GetSchedulingOffset();
void SetSchedulingOffset(long offset);
void UpdateNextCheck(const MessageOrigin::Ptr& origin = nullptr);
bool HasBeenChecked() const;
virtual bool IsStateOK(ServiceState state) const = 0;
double GetLastCheck() const final;
virtual void SaveLastState(ServiceState state, double timestamp) = 0;
static void UpdateStatistics(const CheckResult::Ptr& cr, CheckableType type);
void ExecuteRemoteCheck(const Dictionary::Ptr& resolvedMacros = nullptr);
void ExecuteCheck();
enum class ProcessingResult
{
Ok,
NoCheckResult,
CheckableInactive,
NewerCheckResultPresent,
};
ProcessingResult ProcessCheckResult(const CheckResult::Ptr& cr, const MessageOrigin::Ptr& origin = nullptr);
Endpoint::Ptr GetCommandEndpoint() const;
static boost::signals2::signal<void (const Checkable::Ptr&, const CheckResult::Ptr&, const MessageOrigin::Ptr&)> OnNewCheckResult;
static boost::signals2::signal<void (const Checkable::Ptr&, const CheckResult::Ptr&, StateType, const MessageOrigin::Ptr&)> OnStateChange;
static boost::signals2::signal<void (const Checkable::Ptr&, const CheckResult::Ptr&, std::set<Checkable::Ptr>, const MessageOrigin::Ptr&)> OnReachabilityChanged;
static boost::signals2::signal<void (const Checkable::Ptr&, NotificationType, const CheckResult::Ptr&,
const String&, const String&, const MessageOrigin::Ptr&)> OnNotificationsRequested;
static boost::signals2::signal<void (const Notification::Ptr&, const Checkable::Ptr&, const User::Ptr&,
const NotificationType&, const CheckResult::Ptr&, const String&, const String&, const String&,
const MessageOrigin::Ptr&)> OnNotificationSentToUser;
static boost::signals2::signal<void (const Notification::Ptr&, const Checkable::Ptr&, const std::set<User::Ptr>&,
const NotificationType&, const CheckResult::Ptr&, const String&,
const String&, const MessageOrigin::Ptr&)> OnNotificationSentToAllUsers;
static boost::signals2::signal<void (const Checkable::Ptr&, const String&, const String&, AcknowledgementType,
bool, bool, double, double, const MessageOrigin::Ptr&)> OnAcknowledgementSet;
static boost::signals2::signal<void (const Checkable::Ptr&, const String&, double, const MessageOrigin::Ptr&)> OnAcknowledgementCleared;
static boost::signals2::signal<void (const Checkable::Ptr&, double)> OnFlappingChange;
static boost::signals2::signal<void (const Checkable::Ptr&)> OnNextCheckUpdated;
static boost::signals2::signal<void (const Checkable::Ptr&)> OnEventCommandExecuted;
static Atomic<uint_fast64_t> CurrentConcurrentChecks;
/* Downtimes */
int GetDowntimeDepth() const final;
void RemoveAllDowntimes();
void TriggerDowntimes(double triggerTime);
bool IsInDowntime() const;
bool IsAcknowledged() const;
std::set<Downtime::Ptr> GetDowntimes() const;
void RegisterDowntime(const Downtime::Ptr& downtime);
void UnregisterDowntime(const Downtime::Ptr& downtime);
/* Comments */
void RemoveAllComments();
void RemoveAckComments(const String& removedBy = String(), double createdBefore = std::numeric_limits<double>::max());
std::set<Comment::Ptr> GetComments() const;
Comment::Ptr GetLastComment() const;
void RegisterComment(const Comment::Ptr& comment);
void UnregisterComment(const Comment::Ptr& comment);
/* Notifications */
void SendNotifications(NotificationType type, const CheckResult::Ptr& cr, const String& author = "", const String& text = "");
std::set<Notification::Ptr> GetNotifications() const;
void RegisterNotification(const Notification::Ptr& notification);
void UnregisterNotification(const Notification::Ptr& notification);
void ResetNotificationNumbers();
/* Event Handler */
void ExecuteEventHandler(const Dictionary::Ptr& resolvedMacros = nullptr,
bool useResolvedMacros = false);
intrusive_ptr<EventCommand> GetEventCommand() const;
/* Flapping Detection */
bool IsFlapping() const;
/* Dependencies */
void AddDependency(const intrusive_ptr<Dependency>& dep);
void RemoveDependency(const intrusive_ptr<Dependency>& dep);
std::vector<intrusive_ptr<Dependency> > GetDependencies() const;
void AddReverseDependency(const intrusive_ptr<Dependency>& dep);
void RemoveReverseDependency(const intrusive_ptr<Dependency>& dep);
std::vector<intrusive_ptr<Dependency> > GetReverseDependencies() const;
void ValidateCheckInterval(const Lazy<double>& lvalue, const ValidationUtils& value) final;
void ValidateRetryInterval(const Lazy<double>& lvalue, const ValidationUtils& value) final;
void ValidateMaxCheckAttempts(const Lazy<int>& lvalue, const ValidationUtils& value) final;
bool NotificationReasonApplies(NotificationType type);
bool NotificationReasonSuppressed(NotificationType type);
bool IsLikelyToBeCheckedSoon();
void FireSuppressedNotifications();
static void IncreasePendingChecks();
static void DecreasePendingChecks();
static int GetPendingChecks();
static void AquirePendingCheckSlot(int maxPendingChecks);
static Object::Ptr GetPrototype();
protected:
void Start(bool runtimeCreated) override;
void OnConfigLoaded() override;
void OnAllConfigLoaded() override;
private:
mutable std::mutex m_CheckableMutex;
bool m_CheckRunning{false};
long m_SchedulingOffset;
static std::mutex m_StatsMutex;
static int m_PendingChecks;
static std::condition_variable m_PendingChecksCV;
/* Downtimes */
std::set<Downtime::Ptr> m_Downtimes;
mutable std::mutex m_DowntimeMutex;
static void NotifyFixedDowntimeStart(const Downtime::Ptr& downtime);
static void NotifyFlexibleDowntimeStart(const Downtime::Ptr& downtime);
static void NotifyDowntimeInternal(const Downtime::Ptr& downtime);
static void NotifyDowntimeEnd(const Downtime::Ptr& downtime);
static void FireSuppressedNotificationsTimer(const Timer * const&);
static void CleanDeadlinedExecutions(const Timer * const&);
/* Comments */
std::set<Comment::Ptr> m_Comments;
mutable std::mutex m_CommentMutex;
/* Notifications */
std::set<Notification::Ptr> m_Notifications;
mutable std::mutex m_NotificationMutex;
/* Dependencies */
mutable std::mutex m_DependencyMutex;
std::set<intrusive_ptr<Dependency> > m_Dependencies;
std::set<intrusive_ptr<Dependency> > m_ReverseDependencies;
void GetAllChildrenInternal(std::set<Checkable::Ptr>& children, int level = 0) const;
/* Flapping */
static const std::map<String, int> m_FlappingStateFilterMap;
void UpdateFlappingStatus(ServiceState newState);
static int ServiceStateToFlappingFilter(ServiceState state);
};
}
#endif /* CHECKABLE_H */
#include "icinga/dependency.hpp"
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