mirror of
https://github.com/vale981/ray
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efe8a295ea
* Basic functionality for LRU eviction. * Test eviction. * Factor out eviction policy. * Move delete_object into eviction policy. * Replace array of released objects with an LRU cache (hash table + doubly linked list). * Finish rebase on master. * Move actual object deletion away from eviction policy and into plasma store. * Small fixes. * Fixes. * Make remove_object_from_lru_cache always remove the object. * Minor formatting and comments. * Pass in allowed memory as argument to Plasma store. * Small fix.
92 lines
3.3 KiB
C
92 lines
3.3 KiB
C
#ifndef PLASMA_STORE_H
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#define PLASMA_STORE_H
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#include "plasma.h"
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typedef struct client client;
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typedef struct plasma_store_state plasma_store_state;
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/**
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* Create a new object. The client must do a call to release_object to tell the
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* store when it is done with the object.
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*
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* @param client_context The context of the client making this request.
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* @param object_id Object ID of the object to be created.
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* @param data_size Size in bytes of the object to be created.
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* @param metadata_size Size in bytes of the object metadata.
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* @return Void.
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*/
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void create_object(client *client_context,
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object_id object_id,
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int64_t data_size,
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int64_t metadata_size,
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plasma_object *result);
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/**
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* Get an object. This method assumes that we currently have or will eventually
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* have this object sealed. If the object has not yet been sealed, the client
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* that requested the object will be notified when it is sealed.
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*
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* For each call to get_object, the client must do a call to release_object to
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* tell the store when it is done with the object.
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*
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* @param client_context The context of the client making this request.
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* @param conn The client connection that requests the object.
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* @param object_id Object ID of the object to be gotten.
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* @return The status of the object (object_status in plasma.h).
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*/
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int get_object(client *client_context,
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int conn,
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object_id object_id,
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plasma_object *result);
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/**
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* Record the fact that a particular client is no longer using an object.
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*
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* @param client_context The context of the client making this request.
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* @param object_id The object ID of the object that is being released.
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* @param Void.
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*/
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void release_object(client *client_context, object_id object_id);
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/**
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* Seal an object. The object is now immutable and can be accessed with get.
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*
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* @param client_context The context of the client making this request.
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* @param object_id Object ID of the object to be sealed.
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* @return Void.
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*/
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void seal_object(client *client_context, object_id object_id);
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/**
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* Check if the plasma store contains an object:
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*
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* @param client_context The context of the client making this request.
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* @param object_id Object ID that will be checked.
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* @return OBJECT_FOUND if the object is in the store, OBJECT_NOT_FOUND if not
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*/
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int contains_object(client *client_context, object_id object_id);
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/**
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* Send notifications about sealed objects to the subscribers. This is called
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* in seal_object. If the socket's send buffer is full, the notification will be
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* buffered, and this will be called again when the send buffer has room.
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*
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* @param loop The Plasma store event loop.
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* @param client_sock The socket of the client to send the notification to.
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* @param plasma_state The plasma store global state.
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* @param events This is needed for this function to have the signature of a
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callback.
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* @return Void.
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*/
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void send_notifications(event_loop *loop,
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int client_sock,
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void *plasma_state,
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int events);
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void remove_objects(plasma_store_state *plasma_state,
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int64_t num_objects_to_evict,
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object_id *objects_to_evict);
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#endif /* PLASMA_STORE_H */
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