Crate tugraph

Know issues

Memory leak

TuGraph use a smart pointer type(GCRefCountedPtr<T>) and its wingman scoped reference(ScopedRef<T>) to manage long-living objects which have few construct/destruct and a lot of references. If the last GCRefCountedPtr is destructed but with some ScopedRefs alive, the underlying T* deallocation task will be sent into TimedTaskScheduler. If TimedTaskScheduler runs long enough, the underlying T* will be deallocated(GC). However, TimedTaskScheduler is a static singleton mananger, its destructor will be called when the program is going to shutdown, make some underlying T* deallocation task cancelled and leave some T* leak. It is the root cause to memory leak.

What’s worse, there is no api to wait until all tasks in TimedTaskScheduler to be finished in order to make sure all T* are deallocated.

Modules

cursor

The core data read/write types which allow you move back and forth in graph.

db

Manages each Graph instance with access controlled manager Galaxy.

field

All types describe the attributes of graph element field.

index

Index specification about the index built on vertex/edge.

role_info

txn

TuGraph operations happen in transactions. A transaction is sequence of operations that is carried out atomically on the Graph. TuGraph transactions provides full ACID guarantees.

types

user_info

Structs

Error

Error contains the message from what() yield by C++ std::exception

Enums

ErrorKind

ErrorKind ports all exceptions from lgraph_exceptions.h

Type Aliases

Result