dependency_tracker_psi.h

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#ifndef MYSQL_SCHEDULER_DEPENDENCY_TRACKER_PSI_H
#define MYSQL_SCHEDULER_DEPENDENCY_TRACKER_PSI_H
 
#include "mysql/allocators/memory_resource.h"
#include "mysql/concurrency/condition_variable.h"
#include "mysql/concurrency/mutex.h"
#include "mysql/concurrency/thread.h"
 
namespace mysql::scheduler {
 
/// @brief Dependency_tracker instrumentation parameters, packed into this
/// structure to simplify construction of a Dependency_tracker class instance
/// and prevent mistakes when passing a lot of integer parameters into the class
/// constructor
struct Dependency_tracker_psi {
  /// mutex: One key for mutexes used to synchronize access to each entry (1
  /// mutex per 1 entry)
  concurrency::Mutex_key key_mt_registry_entry{0};
  /// stage: register / activate a task
  concurrency::Stage_key key_stage_activate_task{0};
  /// stage: add dependency
  concurrency::Stage_key key_stage_add_dependency{0};
  /// stage: check if task is ready to execute
  concurrency::Stage_key key_stage_check_ready{0};
  /// stage: mark dependency met (task callback)
  concurrency::Stage_key key_stage_mark_dependency_met{0};
  /// memory: memory instrumentation object
  allocators::Memory_resource memory_resource;
};
 
}  // namespace mysql::scheduler
 
#endif  // MYSQL_SCHEDULER_DEPENDENCY_TRACKER_PSI_H